feat(users): implement comprehensive user listing and control

Adds BoxActivity model to track actions taken on a box.
Updates related endpoints and UI for activity feed.

.dockerignore

@@ -0,0 +1,10 @@
+.git
+.gitignore
+docs/
+memory-bank/
+*_test.go
+README.md
+run.sh
+Dockerfile
+.dockerignore
+data/

.env.example

@@ -0,0 +1,27 @@
+# Core service switches
+WARPBOX_GUEST_UPLOADS_ENABLED=true
+WARPBOX_API_ENABLED=true
+WARPBOX_ZIP_DOWNLOADS_ENABLED=true
+WARPBOX_ONE_TIME_DOWNLOADS_ENABLED=true
+WARPBOX_ONE_TIME_DOWNLOAD_EXPIRY_SECONDS=604800
+WARPBOX_ONE_TIME_DOWNLOAD_RETRY_ON_FAILURE=false
+
+# Storage and expiry limits (in MB)
+WARPBOX_GLOBAL_MAX_FILE_SIZE_MB=2048
+WARPBOX_GLOBAL_MAX_BOX_SIZE_MB=4096
+WARPBOX_DEFAULT_GUEST_EXPIRY_SECONDS=3600
+WARPBOX_MAX_GUEST_EXPIRY_SECONDS=172800
+
+# Tuning
+WARPBOX_BOX_POLL_INTERVAL_MS=5000
+WARPBOX_THUMBNAIL_BATCH_SIZE=10
+WARPBOX_THUMBNAIL_INTERVAL_SECONDS=30
+
+# Data location
+# For local run: ./data
+# For Docker: /app/data
+WARPBOX_DATA_DIR=./data
+
+# Admin Area
+WARPBOX_ADMIN_ENABLED=true
+WARPBOX_ADMIN_PASSWORD=123

.gitignore

@@ -0,0 +1,23 @@
+# Data & Env
+data/
+.env
+docker-compose.yml
+dev
+
+# Go
+bin/
+vendor/
+*.exe
+*.test
+*.out
+*.prof
+
+# IDEs
+.vscode/
+.idea/
+*.swp
+*.swo
+
+# OS
+.DS_Store
+Thumbs.db

CODE_OF_CONDUCT.md

@@ -0,0 +1,41 @@
+# Code of Conduct
+
+## Expected Conduct
+
+- Treat contributors and users with respect.
+- Assume good intent, especially during review.
+- Keep feedback specific, actionable, and focused on the work.
+- Be patient with different experience levels and communication styles.
+- No political opinions are allowed no matter what.
+
+## Unacceptable Conduct
+
+- Harassment, threats, intimidation, or stalking.
+- Abusive, insulting, or demeaning comments.
+- Discriminatory language or behavior.
+- Publishing private information without permission.
+- Sustained disruption of project discussion or review.
+
+## Scope
+
+This code of conduct applies in project spaces, including issues, pull
+requests, discussions, commits, documentation, chat, and any other official
+project channel.
+
+## Reporting
+
+Report concerns to the maintainers.
+
+Contact placeholder:
+
+```text
+TODO: add maintainer contact address
+```
+
+If the report involves a maintainer, send it to another trusted maintainer when
+available.
+
+## Enforcement
+
+Maintainers may remove comments, close threads, reject contributions, block
+participants, or take other reasonable action to keep the project productive.

CONTRIBUTING.md

@@ -0,0 +1,125 @@
+# Contributing to WarpBox
+
+WarpBox is a small Go application with server-rendered HTML, vanilla
+JavaScript, static CSS, local filesystem storage, and BadgerDB metadata. Keep
+changes boring, readable, and easy to review.
+
+## Setup
+
+Requirements:
+
+- Go 1.23 or newer, matching `go.mod`.
+- No frontend toolchain. Do not add npm, Vite, React, TypeScript, Sass,
+  Tailwind, or a JavaScript build step for cleanup work.
+
+Run the app:
+
+```bash
+go run ./cmd run
+```
+
+Run on another address:
+
+```bash
+go run ./cmd run --addr :3000
+```
+
+## Tests and Checks
+
+Run tests:
+
+```bash
+./test.sh
+```
+
+Run formatting, vet, and tests:
+
+```bash
+./check.sh
+```
+
+Both scripts honor `GO_BIN`:
+
+```bash
+GO_BIN=/path/to/go ./check.sh
+```
+
+If a command cannot run in your environment, say why and include the command
+that should be run locally.
+
+## Commit Style
+
+Use Conventional Commits:
+
+```text
+type(scope): short imperative subject
+```
+
+Types:
+
+- `feat` user-visible feature
+- `fix` bug fix
+- `refactor` behavior-preserving code change
+- `test` tests only
+- `docs` documentation only
+- `style` formatting or CSS-only visual style when behavior unchanged
+- `chore` tooling, dependency, build, housekeeping
+- `perf` performance change
+- `ci` CI config
+
+Rules:
+
+- Keep subject at 72 characters or less, preferably 50 or less.
+- Use imperative mood.
+- Keep one concern per commit.
+- Make cleanup commits behavior preserving unless the subject says `fix`.
+- Mention tests run in the PR description or commit body when useful.
+
+Examples:
+
+```text
+docs(contributing): add cleanup rules
+refactor(server): split upload handlers
+fix(config): reject negative expiry values
+```
+
+## Code Review Expectations
+
+Reviews should focus on behavior, safety, and maintainability:
+
+- Confirm routes, environment variables, API response shapes, manifest fields,
+  and storage layout remain compatible unless the change explicitly updates
+  them.
+- Check that cleanup keeps behavior unchanged and is small enough to review.
+- Prefer narrow helpers and clear file ownership over clever abstraction.
+- Ask for tests when behavior changes or risk is not obvious.
+- Call out missing checks, unclear edge cases, concurrency risks, and security
+  risks.
+
+## PR Checklist
+
+Before opening or merging a PR:
+
+- Scope is limited to one concern.
+- Runtime behavior is unchanged for cleanup PRs.
+- Public routes are unchanged unless intentional.
+- Environment variables are unchanged unless intentional.
+- API response shapes are unchanged unless intentional.
+- Manifest JSON field names are unchanged unless intentional.
+- Storage directory layout is unchanged unless intentional.
+- No frontend build tooling was added.
+- Tests or checks run are listed.
+
+## Coding Standards Summary
+
+- Go: small functions, clear errors, stable exported names, no unrelated
+  package moves.
+- JavaScript: vanilla browser scripts, no build step, explicit state ownership,
+  small modules when files are split.
+- CSS: keep shared styles shared, page styles page-scoped, avoid duplicated
+  popup/window rules.
+- Templates: keep server-rendered HTML simple and routes stable.
+- Comments: explain behavior rules, edge cases, concurrency, security, or
+  product choices. Do not restate obvious code.
+
+See [DEVELOPMENT.md](DEVELOPMENT.md) for cleanup rules.

DEVELOPMENT.md

@@ -0,0 +1,183 @@
+# WarpBox Development Rules
+
+This guide exists for contributors and LLM agents doing behavior-preserving
+cleanup. It complements [docs/tech.md](docs/tech.md), which maps the current
+implementation.
+
+## Cleanup Principles
+
+- Keep systems boring and obvious.
+- Prefer short files grouped by one clear responsibility.
+- Prefer narrow helpers over clever abstraction.
+- Keep related functions physically close.
+- Split files when one file mixes multiple domains.
+- Avoid huge utility drawers where unrelated helpers gather.
+- Do behavior-preserving cleanup before feature work.
+- Use tests before and after each cleanup slice.
+
+Cleanup is not feature work. Do not change runtime behavior unless the task
+explicitly says to fix behavior.
+
+## File Responsibility Goals
+
+Files should not mix:
+
+- UI and state.
+- Transport and rendering.
+- Validation and routing.
+- Filesystem operations and business rules.
+- Admin workflows and public box workflows.
+
+When a file is large and contains multiple concerns, prefer splitting by
+responsibility. Use comment regions only when a file is cohesive and splitting
+would make it harder to follow.
+
+Previously split cleanup targets:
+
+- `static/js/app.js` now bootstraps `static/js/upload/`.
+- `static/css/upload.css` now lives under `static/css/upload/` and `static/css/components/`.
+- `lib/server/handlers.go` is split by handler responsibility.
+- `lib/boxstore/store.go` is split by storage responsibility.
+- `lib/server/admin.go` is split by admin responsibility.
+- `lib/config/config.go` is split by config responsibility.
+
+Do not refactor multiple systems in one cleanup slice.
+
+## Comment and JSDoc Guidance
+
+Add comments for:
+
+- Behavior rules that are easy to break.
+- Edge cases.
+- Concurrency or background worker behavior.
+- Security-sensitive choices.
+- Non-obvious product decisions.
+
+Avoid comments that restate code. Prefer clear names and small functions first.
+Use JSDoc only when it clarifies non-obvious inputs, outputs, or side effects.
+
+## Go Rules
+
+- Keep public routes stable.
+- Keep environment variable names stable.
+- Keep API response shapes stable.
+- Keep manifest JSON field names stable.
+- Keep storage directory layout stable.
+- Keep handler files focused on one handler category.
+- Keep route registration separate from validation and business logic.
+- Return clear wrapped errors when context helps debugging.
+- Avoid package moves unless the cleanup slice is specifically about package
+  ownership.
+- Run `gofmt`, `go vet`, and `go test` through `./check.sh`.
+
+Server handler files:
+
+- `pages.go`
+- `downloads.go`
+- `uploads.go`
+- `box_auth.go`
+- `validation.go`
+- `retention.go`
+
+Keep `lib/server/handlers.go` absent unless there is a deliberate reason to
+reintroduce a cohesive handler file.
+
+## JavaScript Rules
+
+- Use vanilla JavaScript only.
+- Do not add a build step.
+- Keep browser scripts loaded directly by templates.
+- Avoid new globals; centralize mutable upload state when splitting.
+- Keep DOM queries/rendering separate from API calls and upload orchestration.
+- Prefer an action map over long action `if` chains when cleaning event code.
+- Share generic UI helpers through `static/js/warpbox-ui.js`.
+- Preserve existing data attributes and template contracts unless explicitly
+  changing behavior.
+
+Target upload split when that cleanup slice is chosen:
+
+- `static/js/upload/state.js`
+- `static/js/upload/dom.js`
+- `static/js/upload/files.js`
+- `static/js/upload/api.js`
+- `static/js/upload/upload-flow.js`
+- `static/js/upload/options.js`
+- `static/js/upload/popups.js`
+- `static/js/upload/terminal.js`
+- `static/js/upload/events.js`
+- `static/js/app.js` as bootstrap only
+
+## CSS Rules
+
+- Keep shared styles in shared files.
+- Keep page-specific styles page-scoped.
+- Avoid duplicated popup, toast, button, and window rules.
+- Use page prefixes for page styles:
+  - `upload-`
+  - `box-`
+  - `admin-`
+- Keep visual changes out of behavior-preserving cleanup unless the cleanup
+  slice is CSS-only.
+- Preserve template class names unless the same slice updates every use.
+
+Target CSS split when that cleanup slice is chosen:
+
+- `base.css`
+- `window.css`
+- `components/buttons.css`
+- `components/popups.css`
+- `components/toast.css`
+- `upload/layout.css`
+- `upload/queue.css`
+- `upload/options.css`
+- `upload/dialogs.css`
+- `upload/responsive.css`
+- `box.css`
+- `admin.css`
+
+## Template Rules
+
+- Keep server-rendered HTML simple.
+- Do not rename public routes during cleanup.
+- Do not change form field names or data attributes unless the matching Go and
+  JavaScript code changes in the same slice.
+- Keep static CSS and JS loading explicit.
+- Avoid hidden behavior changes through template conditionals.
+
+Current loading model:
+
+- Go loads templates from `templates/*.html`.
+- Gin serves `/static` from `./static` with gzip middleware.
+- Templates link CSS directly from `/static/css/...`.
+- Templates load browser JavaScript directly from `/static/js/...`.
+- There is no JavaScript or CSS build step.
+
+## Safety Rules
+
+- Inspect repository structure before editing.
+- Identify relevant files for the current cleanup slice.
+- Identify how JavaScript and CSS are loaded before frontend cleanup.
+- Identify available test/check commands before editing.
+- Summarize the intended change before editing.
+- Make the smallest useful change.
+- Do not rename public routes.
+- Do not rename environment variables.
+- Do not change API response shapes.
+- Do not change manifest JSON field names.
+- Do not change storage directory layout.
+- Do not add frontend tooling during cleanup.
+- Do not rewrite working code just to make it look different.
+- Do not mix unrelated cleanup areas in one change.
+- Do not claim tests passed unless they actually ran.
+
+## Definition of Done
+
+For each cleanup slice:
+
+- Change scope matches one cleanup area.
+- Behavior is unchanged unless the slice is explicitly a fix.
+- Files have clearer responsibility than before.
+- Comments explain only non-obvious rules or risks.
+- Tests or checks were run and recorded.
+- Any failed command is recorded with the exact reason.
+- Next cleanup slice is clear.

Dockerfile

@@ -0,0 +1,65 @@
+# Stage 1: Build
+FROM golang:1.23-alpine AS builder
+
+RUN apk add --no-cache git ca-certificates
+
+WORKDIR /build
+
+# Copy go modules and download dependencies
+COPY go.mod go.sum ./
+RUN go mod download && go mod verify
+
+# Copy source code and static assets
+COPY cmd/ cmd/
+COPY lib/ lib/
+COPY static/ static/
+COPY templates/ templates/
+
+# Build the binary
+RUN CGO_ENABLED=0 GOOS=linux go build -ldflags="-s -w" -o warpbox ./cmd/main.go
+
+# Stage 2: Runtime
+FROM alpine:3.21
+
+RUN apk add --no-cache ca-certificates tzdata
+
+# Create non-root user
+RUN addgroup -S warpbox && adduser -S warpbox -G warpbox
+
+WORKDIR /app
+
+# Copy binary from builder
+COPY --from=builder /build/warpbox .
+
+# Copy static assets
+COPY --from=builder /build/static/ static/
+COPY --from=builder /build/templates/ templates/
+
+# Create data directory
+RUN mkdir -p /app/data/uploads /app/data/db && chown -R warpbox:warpbox /app/data
+
+# Switch to non-root user
+USER warpbox
+
+# Environment variables
+ENV WARPBOX_DATA_DIR=/app/data \
+    WARPBOX_GUEST_UPLOADS_ENABLED=true \
+    WARPBOX_API_ENABLED=true \
+    WARPBOX_ZIP_DOWNLOADS_ENABLED=true \
+    WARPBOX_ONE_TIME_DOWNLOADS_ENABLED=true \
+    WARPBOX_ONE_TIME_DOWNLOAD_EXPIRY_SECONDS=604800 \
+    WARPBOX_ONE_TIME_DOWNLOAD_RETRY_ON_FAILURE=false \
+    WARPBOX_ADMIN_ENABLED=true \
+    WARPBOX_GLOBAL_MAX_FILE_SIZE_MB=2048 \
+    WARPBOX_GLOBAL_MAX_BOX_SIZE_MB=4096 \
+    WARPBOX_DEFAULT_GUEST_EXPIRY_SECONDS=3600 \
+    WARPBOX_MAX_GUEST_EXPIRY_SECONDS=172800 \
+    WARPBOX_BOX_POLL_INTERVAL_MS=5000 \
+    WARPBOX_THUMBNAIL_BATCH_SIZE=10 \
+    WARPBOX_THUMBNAIL_INTERVAL_SECONDS=30
+
+EXPOSE 8080
+
+VOLUME ["/app/data"]
+
+CMD ["./warpbox", "run", "--addr", ":8080"]

LICENSE

@@ -0,0 +1,190 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
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+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
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+      designated in writing by the copyright owner as "Not a Contribution."
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+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
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+      (except as stated in this section) patent license to make, have made,
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+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
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+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
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+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
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+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   Copyright 2026 Daniel Legt
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+

NOTICE

@@ -0,0 +1,4 @@
+WarpBox
+Copyright (c) 2026 Daniel Legt
+
+This product includes software developed by Daniel Legt.

README.md

@@ -0,0 +1,191 @@
+# WarpBox
+
+WarpBox is a small, self-hosted file sharing app with temporary upload boxes,
+simple download links, optional passwords, ZIP downloads, generated image
+thumbnails, and a very deliberate retro desktop mood.
+
+It is meant to feel quick: pick files, choose how long the box should live,
+upload, and share the link.
+
+```mermaid
+flowchart LR
+    User[Person in browser]
+    UI[WarpBox UI]
+    API[Go HTTP server]
+    Manifest[(Box manifest JSON)]
+    Files[(Uploaded files)]
+    Thumbs[(Thumbnail JPEGs)]
+    DB[(BadgerDB metadata)]
+
+    User --> UI
+    UI -->|create box / upload / poll status| API
+    API --> Manifest
+    API --> Files
+    API --> DB
+    Files -->|download files or build ZIP| API
+    Thumbs -->|preview URLs| UI
+    Files -->|scan image files| Thumbs
+```
+
+## Features
+
+- Multi-file uploads through a browser UI.
+- Temporary boxes with configurable retention choices.
+- Optional password protection per box.
+- Individual file downloads or a single ZIP download.
+- One-time download mode for ZIP-only handoff.
+- Background thumbnails for image files.
+- Plain filesystem storage, with JSON manifests next to uploaded files.
+- Local BadgerDB metadata store for users, tags, sessions, and settings.
+- No external database service required.
+
+## How It Fits Together
+
+```mermaid
+flowchart TB
+    Browser[Browser UI]
+    Server[Go HTTP server]
+    Manifest[Box manifest JSON]
+    Files[Uploaded files]
+    Thumbs[Generated thumbnails]
+    DB[(BadgerDB metadata)]
+
+    Browser -->|POST /box, uploads, status polls| Server
+    Server --> Manifest
+    Server --> Files
+    Server --> Thumbs
+    Server --> DB
+    Thumbs -->|preview URLs| Browser
+    Files -->|downloads / ZIP| Browser
+```
+
+## Quick Start
+
+Requirements:
+
+- Go 1.22 or newer.
+
+Run the app:
+
+```bash
+go run ./cmd run
+```
+
+Then open:
+
+```text
+http://localhost:8080
+```
+
+To listen somewhere else:
+
+```bash
+go run ./cmd run --addr :3000
+```
+
+## Configuration
+
+WarpBox loads defaults, applies environment variables at startup, then applies
+safe admin settings overrides from BadgerDB. Hard storage and global limit
+settings remain environment controlled.
+
+| Variable | Default | What it does |
+| --- | ---: | --- |
+| `WARPBOX_DATA_DIR` | `./data` | Root directory for uploads and metadata. |
+| `WARPBOX_ADMIN_PASSWORD` | empty | Bootstraps the first admin when set. |
+| `WARPBOX_ADMIN_USERNAME` | `admin` | Bootstrap admin username. |
+| `WARPBOX_ADMIN_EMAIL` | empty | Bootstrap admin email. |
+| `WARPBOX_ADMIN_ENABLED` | `auto` | Admin login mode: `auto`, `true`, or `false`. |
+| `WARPBOX_ALLOW_ADMIN_SETTINGS_OVERRIDE` | `true` | Allows safe settings overrides from `/admin/settings`. |
+| `WARPBOX_ADMIN_COOKIE_SECURE` | `false` | Sets the Secure flag on admin session cookies. |
+| `WARPBOX_GUEST_UPLOADS_ENABLED` | `true` | Enables guest uploads. |
+| `WARPBOX_API_ENABLED` | `true` | Enables JSON/upload endpoints used by the UI. |
+| `WARPBOX_ZIP_DOWNLOADS_ENABLED` | `true` | Enables ZIP downloads. |
+| `WARPBOX_ONE_TIME_DOWNLOADS_ENABLED` | `true` | Enables one-time download boxes. |
+| `WARPBOX_ONE_TIME_DOWNLOAD_EXPIRY_SECONDS` | `604800` | One-time box lifetime after uploads finish; `0` disables timed expiry. |
+| `WARPBOX_ONE_TIME_DOWNLOAD_RETRY_ON_FAILURE` | `false` | Keeps one-time boxes alive when ZIP build/send fails before completion. |
+| `WARPBOX_RENEW_ON_ACCESS_ENABLED` | `false` | Renews expiring boxes on access. |
+| `WARPBOX_RENEW_ON_DOWNLOAD_ENABLED` | `false` | Renews expiring boxes on download. |
+| `WARPBOX_DEFAULT_GUEST_EXPIRY_SECONDS` | `10` | Default guest retention. |
+| `WARPBOX_MAX_GUEST_EXPIRY_SECONDS` | `172800` | Max guest retention shown/accepted. |
+| `WARPBOX_GLOBAL_MAX_FILE_SIZE_BYTES` | `0` | Hard per-file cap; `0` means unlimited. |
+| `WARPBOX_GLOBAL_MAX_BOX_SIZE_BYTES` | `0` | Hard per-box cap; `0` means unlimited. |
+| `WARPBOX_DEFAULT_USER_MAX_FILE_SIZE_BYTES` | `0` | Default user file cap. |
+| `WARPBOX_DEFAULT_USER_MAX_BOX_SIZE_BYTES` | `0` | Default user box cap. |
+| `WARPBOX_SESSION_TTL_SECONDS` | `86400` | Admin session lifetime. |
+| `WARPBOX_BOX_POLL_INTERVAL_MS` | `5000` | Browser polling interval for box/file status updates. |
+| `WARPBOX_THUMBNAIL_BATCH_SIZE` | `10` | Number of pending thumbnails processed per worker pass. |
+| `WARPBOX_THUMBNAIL_INTERVAL_SECONDS` | `30` | Delay between thumbnail worker passes. |
+
+Size limits also accept `_MB` variants for the same settings.
+
+Example:
+
+```bash
+WARPBOX_ADMIN_PASSWORD='change-me' \
+WARPBOX_ONE_TIME_DOWNLOAD_EXPIRY_SECONDS=604800 \
+WARPBOX_BOX_POLL_INTERVAL_MS=2000 \
+WARPBOX_THUMBNAIL_BATCH_SIZE=20 \
+WARPBOX_THUMBNAIL_INTERVAL_SECONDS=10 \
+go run ./cmd run --addr :8080
+```
+
+Open `/admin/login` after startup to sign in with the bootstrap admin.
+
+## Storage
+
+Uploads are stored locally under:
+
+```text
+<WARPBOX_DATA_DIR>/uploads/
+```
+
+Each box gets its own directory containing the uploaded files and a
+`.warpbox.json` manifest. Image thumbnails are stored inside a box-local
+`.thumbnails` directory.
+
+Persistent app metadata lives in BadgerDB under:
+
+```text
+<WARPBOX_DATA_DIR>/db/
+```
+
+```text
+data/uploads/
++-- <box-id>/
+    +-- .warpbox.json
+    +-- file.txt
+    +-- .thumbnails/
+        +-- <file-id>.jpg
+data/db/
+```
+
+## Project Layout
+
+```text
+cmd/                CLI entrypoint
+lib/server/         HTTP handlers and server setup
+lib/routing/        Route registration
+lib/boxstore/       Box storage, manifests, downloads, thumbnails
+lib/config/         Typed environment and runtime settings config
+lib/metastore/      BadgerDB metadata store for users, tags, settings, sessions
+lib/helpers/        Small shared helpers
+lib/models/         Shared request/response models
+templates/          Server-rendered HTML
+static/css/         Stylesheets
+static/js/          Browser scripts
+static/img/         Icons, sprites, and backgrounds
+static/fonts/       Bitmap/pixel fonts
+static/cursors/     Custom cursor packs
+static/popups/      HTML popup content
+docs/               Project documentation
+```
+
+## Notes
+
+WarpBox is intentionally simple. It uses the local filesystem for box data,
+BadgerDB for app metadata, relies on generated box IDs for share links, and
+keeps most behavior easy to follow from the Go handlers and the small browser
+scripts.
+
+For a short implementation overview, see [docs/tech.md](docs/tech.md).

TRADEMARK.md

@@ -0,0 +1,2 @@
+The name "WarpBox" and associated branding are not licensed under the Apache License 2.0.
+You may not use them without permission.

check.sh

@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+cd "$(dirname "$0")"
+
+if [ -n "${GO_BIN:-}" ]; then
+  go_bin="$GO_BIN"
+elif command -v go >/dev/null 2>&1; then
+  go_bin="$(command -v go)"
+elif [ -x /home/linuxbrew/.linuxbrew/bin/go ]; then
+  go_bin=/home/linuxbrew/.linuxbrew/bin/go
+else
+  echo "go not found. Set GO_BIN=/path/to/go or install Go." >&2
+  exit 127
+fi
+
+"$go_bin" fmt ./...
+"$go_bin" vet ./...
+"$go_bin" test ./... "$@"

cmd/cmd_box.go

@@ -0,0 +1,554 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+	"sort"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/spf13/cobra"
+	"github.com/spf13/pflag"
+	"golang.org/x/crypto/bcrypt"
+
+	"warpbox/lib/boxstore"
+	"warpbox/lib/helpers"
+	"warpbox/lib/models"
+)
+
+func newBoxCommand() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "box",
+		Short: "Manage boxes",
+		Long:  "Manage WarpBox upload boxes: list, view, inspect, delete, modify.",
+	}
+
+	cmd.AddCommand(newBoxListCommand())
+	cmd.AddCommand(newBoxViewCommand())
+	cmd.AddCommand(newBoxInspectCommand())
+	cmd.AddCommand(newBoxDeleteCommand())
+	cmd.AddCommand(newBoxChangeCommand())
+	cmd.AddCommand(newBoxGetCommand())
+
+	return cmd
+}
+
+func newBoxListCommand() *cobra.Command {
+	var format string
+	var uploadRoot string
+	var sortBy string
+	var sortOrder string
+	var filterExpired string
+	var filterPassword string
+	var filterOneTime string
+	var filterSizeMin string
+	var filterSizeMax string
+	var filterCreatedAfter string
+	var filterCreatedBefore string
+	cmd := &cobra.Command{
+		Use:     "ls",
+		Aliases: []string{"list", "view"},
+		Short:   "List all boxes",
+		Long:    "List all boxes with optional sorting and filtering.",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			if uploadRoot != "" {
+				boxstore.SetUploadRoot(uploadRoot)
+			}
+			summaries, err := boxstore.ListBoxSummaries()
+			if err != nil {
+				return fmt.Errorf("failed to list boxes: %w", err)
+			}
+			if len(summaries) == 0 {
+				fmt.Println("No boxes found.")
+				return nil
+			}
+
+			// Apply filters
+			summaries = filterBoxes(summaries, filterExpired, filterPassword, filterOneTime, filterSizeMin, filterSizeMax, filterCreatedAfter, filterCreatedBefore)
+
+			if len(summaries) == 0 {
+				fmt.Println("No boxes match the given filters.")
+				return nil
+			}
+
+			// Apply sorting
+			sortBoxes(summaries, sortBy, sortOrder)
+
+			switch format {
+			case "json":
+				return formatBoxSummariesJSON(summaries)
+			case "table", "":
+				return formatBoxSummariesTable(summaries)
+			default:
+				return fmt.Errorf("unknown format: %s (use 'table' or 'json')", format)
+			}
+		},
+	}
+	cmd.Flags().StringVarP(&format, "format", "o", "table", "Output format: table, json")
+	cmd.Flags().StringVar(&uploadRoot, "upload-root", "", "Override upload root directory")
+	cmd.Flags().StringVar(&sortBy, "sort", "created", "Sort field: created, expires, size, files")
+	cmd.Flags().StringVar(&sortOrder, "sort-order", "desc", "Sort order: asc, desc")
+	cmd.Flags().StringVar(&filterExpired, "filter-expired", "", "Filter by expiry: yes, no, all")
+	cmd.Flags().StringVar(&filterPassword, "filter-password", "", "Filter by password: yes, no, all")
+	cmd.Flags().StringVar(&filterOneTime, "filter-one-time", "", "Filter by one-time: yes, no, all")
+	cmd.Flags().StringVar(&filterSizeMin, "filter-size-min", "", "Minimum total size in bytes (e.g. 1024, 1k, 1m, 1g)")
+	cmd.Flags().StringVar(&filterSizeMax, "filter-size-max", "", "Maximum total size in bytes (e.g. 1024, 1k, 1m, 1g)")
+	cmd.Flags().StringVar(&filterCreatedAfter, "filter-created-after", "", "Only boxes created after this time (RFC3339)")
+	cmd.Flags().StringVar(&filterCreatedBefore, "filter-created-before", "", "Only boxes created before this time (RFC3339)")
+	return cmd
+}
+
+func filterBoxes(summaries []models.BoxSummary, filterExpired, filterPassword, filterOneTime, filterSizeMin, filterSizeMax, filterCreatedAfter, filterCreatedBefore string) []models.BoxSummary {
+	result := make([]models.BoxSummary, 0, len(summaries))
+
+	minSize, _ := parseSizeFilter(filterSizeMin)
+	maxSize, _ := parseSizeFilter(filterSizeMax)
+	createdAfter, _ := time.Parse(time.RFC3339, filterCreatedAfter)
+	createdBefore, _ := time.Parse(time.RFC3339, filterCreatedBefore)
+
+	for _, s := range summaries {
+		if filterExpired != "" && filterExpired != "all" {
+			match := "no"
+			if s.Expired {
+				match = "yes"
+			}
+			if match != filterExpired {
+				continue
+			}
+		}
+		if filterPassword != "" && filterPassword != "all" {
+			match := "no"
+			if s.PasswordProtected {
+				match = "yes"
+			}
+			if match != filterPassword {
+				continue
+			}
+		}
+		if filterOneTime != "" && filterOneTime != "all" {
+			match := "no"
+			if s.OneTimeDownload {
+				match = "yes"
+			}
+			if match != filterOneTime {
+				continue
+			}
+		}
+		if minSize > 0 && s.TotalSize < minSize {
+			continue
+		}
+		if maxSize > 0 && s.TotalSize > maxSize {
+			continue
+		}
+		if !createdAfter.IsZero() && s.CreatedAt.Before(createdAfter) {
+			continue
+		}
+		if !createdBefore.IsZero() && !s.CreatedAt.Before(createdBefore) {
+			continue
+		}
+		result = append(result, s)
+	}
+	return result
+}
+
+func parseSizeFilter(s string) (int64, error) {
+	if s == "" {
+		return 0, nil
+	}
+	s = strings.TrimSpace(s)
+	lower := strings.ToLower(s)
+
+	multiplier := int64(1)
+	switch {
+	case strings.HasSuffix(lower, "g"):
+		multiplier = 1024 * 1024 * 1024
+		s = strings.TrimSuffix(lower, "g")
+	case strings.HasSuffix(lower, "m"):
+		multiplier = 1024 * 1024
+		s = strings.TrimSuffix(lower, "m")
+	case strings.HasSuffix(lower, "k"):
+		multiplier = 1024
+		s = strings.TrimSuffix(lower, "k")
+	}
+
+	val, err := strconv.ParseInt(s, 10, 64)
+	if err != nil {
+		return 0, fmt.Errorf("invalid size filter: %s", s)
+	}
+	return val * multiplier, nil
+}
+
+func sortBoxes(summaries []models.BoxSummary, sortBy, sortOrder string) {
+	reverse := false
+	if strings.EqualFold(sortOrder, "desc") {
+		reverse = true
+	}
+
+	sort.SliceStable(summaries, func(i, j int) bool {
+		var less bool
+		switch strings.ToLower(sortBy) {
+		case "size":
+			less = summaries[i].TotalSize < summaries[j].TotalSize
+		case "files":
+			less = summaries[i].FileCount < summaries[j].FileCount
+		case "expires":
+			// Boxes with no expiry go last
+			iZero := summaries[i].ExpiresAt.IsZero()
+			jZero := summaries[j].ExpiresAt.IsZero()
+			if iZero && jZero {
+				return false
+			}
+			if iZero {
+				return false
+			}
+			if jZero {
+				return true
+			}
+			less = summaries[i].ExpiresAt.Before(summaries[j].ExpiresAt)
+		case "created", "":
+			less = summaries[i].CreatedAt.Before(summaries[j].CreatedAt)
+		default:
+			less = summaries[i].ID < summaries[j].ID
+		}
+		if reverse {
+			return !less
+		}
+		return less
+	})
+}
+
+func newBoxViewCommand() *cobra.Command {
+	var uploadRoot string
+	var asJSON bool
+	cmd := &cobra.Command{
+		Use:   "view",
+		Short: "View box summary",
+		Long:  "View a box summary showing files, size, expiry, etc.",
+		Args:  cobra.ExactArgs(1),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			if uploadRoot != "" {
+				boxstore.SetUploadRoot(uploadRoot)
+			}
+			boxID := args[0]
+			summary, err := boxstore.BoxSummary(boxID)
+			if err != nil {
+				return fmt.Errorf("failed to view box %s: %w", boxID, err)
+			}
+			if asJSON {
+				return formatBoxSummaryJSON(&summary)
+			}
+			printBoxSummary(&summary)
+			return nil
+		},
+	}
+	cmd.Flags().StringVar(&uploadRoot, "upload-root", "", "Override upload root directory")
+	cmd.Flags().BoolVar(&asJSON, "json", false, "Output as JSON")
+	return cmd
+}
+
+func newBoxInspectCommand() *cobra.Command {
+	var uploadRoot string
+	var full bool
+	var asJSON bool
+	cmd := &cobra.Command{
+		Use:   "inspect",
+		Short: "Inspect box manifest (raw JSON)",
+		Long:  "Print the full box manifest as JSON. Use --full for hidden fields.",
+		Args:  cobra.ExactArgs(1),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			if uploadRoot != "" {
+				boxstore.SetUploadRoot(uploadRoot)
+			}
+			boxID := args[0]
+			manifest, err := boxstore.ReadManifest(boxID)
+			if err != nil {
+				return fmt.Errorf("failed to read manifest for box %s: %w", boxID, err)
+			}
+			if !full {
+				sanitized := manifest
+				sanitized.PasswordHash = "[REDACTED]"
+				sanitized.PasswordSalt = "[REDACTED]"
+				sanitized.AuthToken = "[REDACTED]"
+				manifest = sanitized
+			}
+			enc := json.NewEncoder(os.Stdout)
+			enc.SetIndent("", "  ")
+			return enc.Encode(manifest)
+		},
+	}
+	cmd.Flags().StringVar(&uploadRoot, "upload-root", "", "Override upload root directory")
+	cmd.Flags().BoolVar(&full, "full", false, "Show sensitive fields (password hash, auth token)")
+	cmd.Flags().BoolVar(&asJSON, "json", false, "Output as JSON (default for inspect)")
+	_ = asJSON // inspect is always JSON; flag kept for consistency
+	return cmd
+}
+
+func newBoxDeleteCommand() *cobra.Command {
+	var uploadRoot string
+	var force bool
+	var asJSON bool
+	cmd := &cobra.Command{
+		Use:     "rm",
+		Aliases: []string{"del", "delete"},
+		Short:   "Delete a box",
+		Args:    cobra.ExactArgs(1),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			if uploadRoot != "" {
+				boxstore.SetUploadRoot(uploadRoot)
+			}
+			boxID := args[0]
+			if !force {
+				fmt.Printf("This will permanently delete box %s and all its files.\n", boxID)
+				fmt.Print("Confirm (y/N): ")
+				var confirm string
+				if _, err := fmt.Scanln(&confirm); err != nil {
+					confirm = "n"
+				}
+				if strings.ToLower(strings.TrimSpace(confirm)) != "y" {
+					if asJSON {
+						fmt.Println(`{"deleted": false, "reason": "aborted"}`)
+					} else {
+						fmt.Println("Aborted.")
+					}
+					return nil
+				}
+			}
+			if err := boxstore.DeleteBox(boxID); err != nil {
+				if asJSON {
+					fmt.Printf(`{"deleted": false, "error": "%s"}\n`, strings.ReplaceAll(err.Error(), `"`, `\"`))
+				} else {
+					return fmt.Errorf("failed to delete box %s: %w", boxID, err)
+				}
+				return nil
+			}
+			if asJSON {
+				fmt.Printf(`{"deleted": true, "box_id": "%s"}\n`, boxID)
+			} else {
+				fmt.Printf("Box %s deleted.\n", boxID)
+			}
+			return nil
+		},
+	}
+	cmd.Flags().StringVar(&uploadRoot, "upload-root", "", "Override upload root directory")
+	cmd.Flags().BoolVarP(&force, "force", "f", false, "Skip confirmation prompt")
+	cmd.Flags().BoolVar(&asJSON, "json", false, "Output as JSON")
+	return cmd
+}
+
+func newBoxChangeCommand() *cobra.Command {
+	var uploadRoot string
+	var retention int64
+	var retentionList bool
+	var password string
+	var zip bool
+	var oneTime bool
+	var renew bool
+	var renewSeconds int64
+	var asJSON bool
+
+	cmd := &cobra.Command{
+		Use:     "change",
+		Aliases: []string{"update", "modify"},
+		Short:   "Change box properties",
+		Long:    "Change box properties: retention, password, zip, one-time download, renew expiry.",
+		Args:    cobra.ExactArgs(1),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			if uploadRoot != "" {
+				boxstore.SetUploadRoot(uploadRoot)
+			}
+			boxID := args[0]
+
+			if retentionList {
+				printRetentionOptions()
+				return nil
+			}
+
+			changes, err := gatherBoxChanges(cmd.Flags(), retention, password, zip, oneTime, renew, renewSeconds)
+			if err != nil {
+				return err
+			}
+
+			if len(changes) == 0 {
+				fmt.Println("No changes specified. Use --retention, --password, --zip, --one-time, --renew, or --retention-list.")
+				return nil
+			}
+
+			manifest, err := boxstore.ReadManifest(boxID)
+			if err != nil {
+				return fmt.Errorf("failed to read manifest for box %s: %w", boxID, err)
+			}
+
+			for _, apply := range changes {
+				if err := apply(&manifest); err != nil {
+					return err
+				}
+			}
+
+			if err := boxstore.WriteManifest(boxID, manifest); err != nil {
+				return fmt.Errorf("failed to save manifest for box %s: %w", boxID, err)
+			}
+
+			if asJSON {
+				return formatChangeResultJSON(boxID, manifest)
+			}
+			fmt.Printf("Box %s updated.\n", boxID)
+			return nil
+		},
+	}
+
+	cmd.Flags().StringVar(&uploadRoot, "upload-root", "", "Override upload root directory")
+	cmd.Flags().Int64Var(&retention, "retention", 0, "Set retention seconds (use --retention-list for valid values)")
+	cmd.Flags().BoolVar(&retentionList, "retention-list", false, "List available retention options")
+	cmd.Flags().StringVar(&password, "password", "", "Set a new password (empty string to remove)")
+	cmd.Flags().BoolVar(&zip, "zip", true, "Allow ZIP downloads (default true, --zip=false to disable)")
+	cmd.Flags().BoolVar(&oneTime, "one-time", false, "Enable one-time download mode")
+	cmd.Flags().BoolVar(&renew, "renew", false, "Renew box expiry (use --renew-seconds for duration)")
+	cmd.Flags().Int64Var(&renewSeconds, "renew-seconds", 0, "Seconds to extend expiry by (used with --renew)")
+	cmd.Flags().BoolVar(&asJSON, "json", false, "Output as JSON")
+
+	return cmd
+}
+
+type changeFunc func(*models.BoxManifest) error
+
+func gatherBoxChanges(flags *pflag.FlagSet, retention int64, password string, zip bool, oneTime bool, renew bool, renewSeconds int64) ([]changeFunc, error) {
+	var changes []changeFunc
+
+	if flags.Changed("retention") {
+		if retention < 0 {
+			return nil, fmt.Errorf("retention cannot be negative")
+		}
+		changes = append(changes, func(m *models.BoxManifest) error {
+			if m.OneTimeDownload {
+				m.OneTimeDownload = false
+			}
+			m.RetentionSecs = retention
+			for _, opt := range boxstore.RetentionOptions() {
+				if opt.Seconds == retention {
+					m.RetentionKey = opt.Key
+					m.RetentionLabel = opt.Label
+					return nil
+				}
+			}
+			m.RetentionKey = "custom"
+			return nil
+		})
+	}
+
+	if flags.Changed("password") {
+		changes = append(changes, func(m *models.BoxManifest) error {
+			if password == "" {
+				m.PasswordHash = ""
+				m.PasswordHashAlg = ""
+				m.AuthToken = ""
+				return nil
+			}
+			token, err := helpers.RandomHexID(16)
+			if err != nil {
+				return fmt.Errorf("could not generate auth token")
+			}
+			hash, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
+			if err != nil {
+				return fmt.Errorf("could not hash password: %w", err)
+			}
+			m.PasswordHash = string(hash)
+			m.PasswordHashAlg = "bcrypt"
+			m.AuthToken = token
+			return nil
+		})
+	}
+
+	if flags.Changed("zip") {
+		changes = append(changes, func(m *models.BoxManifest) error {
+			if m.OneTimeDownload {
+				return nil
+			}
+			m.DisableZip = !zip
+			return nil
+		})
+	}
+
+	if flags.Changed("one-time") {
+		changes = append(changes, func(m *models.BoxManifest) error {
+			if oneTime {
+				m.OneTimeDownload = true
+				m.DisableZip = false
+				if boxstore.OneTimeDownloadExpiry() > 0 {
+					m.RetentionSecs = boxstore.OneTimeDownloadExpiry()
+				}
+			} else {
+				m.OneTimeDownload = false
+			}
+			return nil
+		})
+	}
+
+	if flags.Changed("renew") {
+		changes = append(changes, func(m *models.BoxManifest) error {
+			secs := renewSeconds
+			if secs <= 0 {
+				secs = m.RetentionSecs
+			}
+			return renewBoxExpiry(m, secs)
+		})
+	}
+
+	return changes, nil
+}
+
+func renewBoxExpiry(m *models.BoxManifest, seconds int64) error {
+	if seconds <= 0 || m.OneTimeDownload {
+		return nil
+	}
+	if m.ExpiresAt.IsZero() {
+		m.ExpiresAt = time.Now().UTC().Add(time.Duration(seconds) * time.Second)
+		return nil
+	}
+	m.ExpiresAt = m.ExpiresAt.Add(time.Duration(seconds) * time.Second)
+	return nil
+}
+
+func newBoxGetCommand() *cobra.Command {
+	var uploadRoot string
+	var asJSON bool
+	cmd := &cobra.Command{
+		Use:   "get",
+		Short: "Get box URL and info",
+		Args:  cobra.ExactArgs(1),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			if uploadRoot != "" {
+				boxstore.SetUploadRoot(uploadRoot)
+			}
+			boxID := args[0]
+			manifest, err := boxstore.ReadManifest(boxID)
+			if err != nil {
+				return fmt.Errorf("failed to read manifest for box %s: %w", boxID, err)
+			}
+
+			if asJSON {
+				return formatBoxGetJSON(boxID, manifest)
+			}
+
+			fmt.Printf("Box ID:\t%s\n", boxID)
+			fmt.Printf("URL:\t/box/%s\n", boxID)
+			if !manifest.CreatedAt.IsZero() {
+				fmt.Printf("Created:\t%s\n", manifest.CreatedAt.Format(time.RFC3339))
+			}
+			if !manifest.ExpiresAt.IsZero() {
+				fmt.Printf("Expires:\t%s\n", manifest.ExpiresAt.Format(time.RFC3339))
+			}
+			if boxstore.IsPasswordProtected(manifest) {
+				fmt.Println("Password:\tprotected")
+			}
+			if manifest.OneTimeDownload {
+				fmt.Println("Mode:\tone-time download")
+			}
+			return nil
+		},
+	}
+	cmd.Flags().StringVar(&uploadRoot, "upload-root", "", "Override upload root directory")
+	cmd.Flags().BoolVar(&asJSON, "json", false, "Output as JSON")
+	return cmd
+}

cmd/cmd_env.go

@@ -0,0 +1,271 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+	"strings"
+	"text/tabwriter"
+
+	"warpbox/lib/config"
+
+	"github.com/spf13/cobra"
+)
+
+func newEnvCommand() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "env",
+		Short: "Explore environment variable options",
+		Long:  "List and inspect WarpBox environment variables sourced from the codebase.",
+	}
+
+	cmd.AddCommand(newEnvListCommand())
+	cmd.AddCommand(newEnvDescribeCommand())
+
+	return cmd
+}
+
+func newEnvListCommand() *cobra.Command {
+	var format string
+	var includeHidden bool
+	cmd := &cobra.Command{
+		Use:     "ls",
+		Aliases: []string{"list"},
+		Short:   "List all environment variables",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			return formatEnvList(format, includeHidden)
+		},
+	}
+	cmd.Flags().StringVarP(&format, "format", "o", "table", "Output format: table, json, env")
+	cmd.Flags().BoolVar(&includeHidden, "hidden", false, "Include non-editable and hard-limit settings")
+	return cmd
+}
+
+func newEnvDescribeCommand() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:     "describe",
+		Aliases: []string{"show", "info", "get"},
+		Short:   "Describe an environment variable",
+		Long:    "Show detailed info about a specific env var or setting key.",
+		Args:    cobra.ExactArgs(1),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			return describeEnvVar(args[0])
+		},
+	}
+	return cmd
+}
+
+type envRow struct {
+	EnvName   string
+	Key       string
+	Label     string
+	Type      config.SettingType
+	Default   string
+	Editable  bool
+	HardLimit bool
+	Minimum   int64
+}
+
+type describeRow struct {
+	EnvName   string
+	Key       string
+	Label     string
+	Type      config.SettingType
+	Default   string
+	Value     string
+	Source    string
+	Editable  bool
+	HardLimit bool
+	Minimum   int64
+}
+
+func formatEnvList(format string, includeHidden bool) error {
+	allRows := buildAllEnvRows(includeHidden)
+
+	switch format {
+	case "json":
+		type envOut struct {
+			EnvName   string `json:"env_name"`
+			Key       string `json:"key"`
+			Label     string `json:"label"`
+			Type      string `json:"type"`
+			Default   string `json:"default"`
+			Editable  bool   `json:"editable"`
+			HardLimit bool   `json:"hard_limit"`
+			Minimum   int64  `json:"minimum,omitempty"`
+		}
+		out := make([]envOut, len(allRows))
+		for i, r := range allRows {
+			out[i] = envOut{
+				EnvName: r.EnvName, Key: r.Key, Label: r.Label,
+				Type: string(r.Type), Default: r.Default, Editable: r.Editable,
+				HardLimit: r.HardLimit, Minimum: r.Minimum,
+			}
+		}
+		enc := json.NewEncoder(os.Stdout)
+		enc.SetIndent("", "  ")
+		return enc.Encode(out)
+
+	case "env":
+		for _, r := range allRows {
+			fmt.Printf("%s=\"%s\"\n", r.EnvName, r.Default)
+		}
+		return nil
+
+	case "table", "":
+		w := tabwriter.NewWriter(os.Stdout, 0, 0, 2, ' ', 0)
+		fmt.Fprintln(w, "ENV NAME\tKey\tLabel\tType\tDefault\tEditable")
+		for _, r := range allRows {
+			fmt.Fprintf(w, "%s\t%s\t%s\t%s\t%s\t%v\n",
+				r.EnvName, r.Key, r.Label, r.Type, r.Default, r.Editable)
+		}
+		return w.Flush()
+
+	default:
+		return fmt.Errorf("unknown format: %s (use 'table', 'json', or 'env')", format)
+	}
+}
+
+func buildAllEnvRows(includeHidden bool) []envRow {
+	cfg, loadErr := config.Load()
+
+	var rows []envRow
+
+	for _, def := range config.Definitions {
+		if !includeHidden && (!def.Editable || def.HardLimit) {
+			continue
+		}
+		row := envRow{
+			EnvName:   def.EnvName,
+			Key:       def.Key,
+			Label:     def.Label,
+			Type:      def.Type,
+			Editable:  def.Editable,
+			HardLimit: def.HardLimit,
+			Minimum:   def.Minimum,
+		}
+		if loadErr == nil {
+			row.Default = getEnvDefault(cfg, def)
+		}
+		rows = append(rows, row)
+	}
+
+	extra := buildExtraEnvRows(includeHidden)
+	rows = append(rows, extra...)
+
+	return rows
+}
+
+func getEnvDefault(cfg *config.Config, def config.SettingDefinition) string {
+	for _, row := range cfg.SettingRows() {
+		if row.Definition.Key == def.Key && row.Source == config.SourceDefault {
+			return row.Value
+		}
+	}
+	return ""
+}
+
+func buildExtraEnvRows(includeHidden bool) []envRow {
+	extra := []envRow{
+		{EnvName: "WARPBOX_ADMIN_ENABLED", Key: "admin_enabled", Label: "Admin interface mode", Type: config.SettingTypeText, Editable: false, Default: "auto"},
+		{EnvName: "WARPBOX_ADMIN_USERNAME", Key: "admin_username", Label: "Admin username", Type: config.SettingTypeText, Editable: false, Default: "admin"},
+		{EnvName: "WARPBOX_ADMIN_PASSWORD", Key: "admin_password", Label: "Admin password", Type: config.SettingTypeText, Editable: false, Default: "(none)"},
+		{EnvName: "WARPBOX_ADMIN_EMAIL", Key: "admin_email", Label: "Admin email", Type: config.SettingTypeText, Editable: false, Default: "(none)"},
+		{EnvName: "WARPBOX_ADMIN_COOKIE_SECURE", Key: "admin_cookie_secure", Label: "Admin cookie secure flag", Type: config.SettingTypeBool, Editable: false, Default: "false"},
+		{EnvName: "WARPBOX_ALLOW_ADMIN_SETTINGS_OVERRIDE", Key: "allow_admin_override", Label: "Allow admin UI to override settings", Type: config.SettingTypeBool, Editable: false, HardLimit: true, Default: "true"},
+	}
+
+	sizePairs := []struct {
+		bytesEnv string
+		mbEnv    string
+		label    string
+	}{
+		{"WARPBOX_GLOBAL_MAX_FILE_SIZE_BYTES", "WARPBOX_GLOBAL_MAX_FILE_SIZE_MB", "Global max file size"},
+		{"WARPBOX_GLOBAL_MAX_BOX_SIZE_BYTES", "WARPBOX_GLOBAL_MAX_BOX_SIZE_MB", "Global max box size"},
+		{"WARPBOX_DEFAULT_USER_MAX_FILE_SIZE_BYTES", "WARPBOX_DEFAULT_USER_MAX_FILE_SIZE_MB", "Default user max file size"},
+		{"WARPBOX_DEFAULT_USER_MAX_BOX_SIZE_BYTES", "WARPBOX_DEFAULT_USER_MAX_BOX_SIZE_MB", "Default user max box size"},
+	}
+
+	for _, pair := range sizePairs {
+		extra = append(extra, envRow{EnvName: pair.bytesEnv, Key: pair.bytesEnv, Label: pair.label + " (bytes)", Type: config.SettingTypeInt64, Editable: false, HardLimit: true, Minimum: 0, Default: "(use bytes or MB variant)"})
+		extra = append(extra, envRow{EnvName: pair.mbEnv, Key: pair.mbEnv, Label: pair.label + " (MB)", Type: config.SettingTypeInt64, Editable: false, HardLimit: true, Minimum: 0, Default: "(use bytes or MB variant)"})
+	}
+
+	return extra
+}
+
+func describeEnvVar(query string) error {
+	cfg, loadErr := config.Load()
+
+	for _, def := range config.Definitions {
+		if matchEnv(query, def.EnvName, def.Key) {
+			row := describeRow{
+				EnvName:   def.EnvName,
+				Key:       def.Key,
+				Label:     def.Label,
+				Type:      def.Type,
+				Editable:  def.Editable,
+				HardLimit: def.HardLimit,
+				Minimum:   def.Minimum,
+			}
+			if loadErr == nil {
+				for _, r := range cfg.SettingRows() {
+					if r.Definition.Key == def.Key {
+						row.Value = r.Value
+						row.Source = string(r.Source)
+						break
+					}
+				}
+			}
+			printDescribeRow(row)
+			return nil
+		}
+	}
+
+	extras := buildExtraEnvRows(true)
+	for _, er := range extras {
+		if matchEnv(query, er.EnvName, er.Key) {
+			row := describeRow{
+				EnvName:   er.EnvName,
+				Key:       er.Key,
+				Label:     er.Label,
+				Type:      er.Type,
+				Editable:  er.Editable,
+				HardLimit: er.HardLimit,
+				Minimum:   er.Minimum,
+				Default:   er.Default,
+			}
+			printDescribeRow(row)
+			return nil
+		}
+	}
+
+	return fmt.Errorf("no environment variable found matching: %s\n\nUse 'warpbox env ls' to list all available options.", query)
+}
+
+func matchEnv(query, envName, key string) bool {
+	return strings.EqualFold(query, envName) || strings.EqualFold(query, key)
+}
+
+func printDescribeRow(r describeRow) {
+	w := tabwriter.NewWriter(os.Stdout, 0, 0, 2, ' ', 0)
+	fmt.Fprintf(w, "Environment Variable:\t%s\n", r.EnvName)
+	fmt.Fprintf(w, "Setting Key:\t%s\n", r.Key)
+	fmt.Fprintf(w, "Label:\t%s\n", r.Label)
+	fmt.Fprintf(w, "Type:\t%s\n", r.Type)
+	fmt.Fprintf(w, "Editable (runtime):\t%v\n", r.Editable)
+	fmt.Fprintf(w, "Hard Limit:\t%v\n", r.HardLimit)
+	if r.Minimum > 0 {
+		fmt.Fprintf(w, "Minimum:\t%d\n", r.Minimum)
+	}
+	if r.Default != "" {
+		fmt.Fprintf(w, "Default:\t%s\n", r.Default)
+	}
+	if r.Value != "" {
+		fmt.Fprintf(w, "Current Value:\t%s\n", r.Value)
+	}
+	if r.Source != "" {
+		fmt.Fprintf(w, "Source:\t%s\n", r.Source)
+	}
+	w.Flush()
+}

cmd/cmd_format.go

@@ -0,0 +1,181 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+	"text/tabwriter"
+	"time"
+
+	"warpbox/lib/boxstore"
+	"warpbox/lib/models"
+)
+
+// ── List output ──────────────────────────────────────────────
+
+func formatBoxSummariesTable(summaries []models.BoxSummary) error {
+	w := tabwriter.NewWriter(os.Stdout, 0, 0, 2, ' ', 0)
+	fmt.Fprintln(w, "ID\tFiles\tSize\tCreated\tExpires\tPassword\tOne-Time\tExpired")
+	for _, s := range summaries {
+		expires := "-"
+		if !s.ExpiresAt.IsZero() {
+			expires = s.ExpiresAt.Format("2006-01-02 15:04:05")
+		}
+		created := s.CreatedAt.Format("2006-01-02 15:04:05")
+		fmt.Fprintf(w, "%s\t%d\t%s\t%s\t%s\t%v\t%v\t%v\n",
+			s.ID, s.FileCount, s.TotalSizeLabel, created, expires,
+			s.PasswordProtected, s.OneTimeDownload, s.Expired)
+	}
+	return w.Flush()
+}
+
+func formatBoxSummariesJSON(summaries []models.BoxSummary) error {
+	type summaryOut struct {
+		ID                string    `json:"id"`
+		FileCount         int       `json:"file_count"`
+		TotalSize         int64     `json:"total_size"`
+		TotalSizeLabel    string    `json:"total_size_label"`
+		CreatedAt         time.Time `json:"created_at"`
+		ExpiresAt         time.Time `json:"expires_at"`
+		Expired           bool      `json:"expired"`
+		OneTimeDownload   bool      `json:"one_time_download"`
+		PasswordProtected bool      `json:"password_protected"`
+	}
+	out := make([]summaryOut, len(summaries))
+	for i, s := range summaries {
+		out[i] = summaryOut{
+			ID: s.ID, FileCount: s.FileCount, TotalSize: s.TotalSize,
+			TotalSizeLabel: s.TotalSizeLabel, CreatedAt: s.CreatedAt,
+			ExpiresAt: s.ExpiresAt, Expired: s.Expired,
+			OneTimeDownload: s.OneTimeDownload, PasswordProtected: s.PasswordProtected,
+		}
+	}
+	enc := json.NewEncoder(os.Stdout)
+	enc.SetIndent("", "  ")
+	return enc.Encode(out)
+}
+
+// ── View output ──────────────────────────────────────────────
+
+func formatBoxSummaryJSON(s *models.BoxSummary) error {
+	type summaryOut struct {
+		ID                string    `json:"id"`
+		FileCount         int       `json:"file_count"`
+		TotalSize         int64     `json:"total_size"`
+		TotalSizeLabel    string    `json:"total_size_label"`
+		CreatedAt         time.Time `json:"created_at"`
+		ExpiresAt         time.Time `json:"expires_at"`
+		Expired           bool      `json:"expired"`
+		OneTimeDownload   bool      `json:"one_time_download"`
+		PasswordProtected bool      `json:"password_protected"`
+	}
+	out := summaryOut{
+		ID: s.ID, FileCount: s.FileCount, TotalSize: s.TotalSize,
+		TotalSizeLabel: s.TotalSizeLabel, CreatedAt: s.CreatedAt,
+		ExpiresAt: s.ExpiresAt, Expired: s.Expired,
+		OneTimeDownload: s.OneTimeDownload, PasswordProtected: s.PasswordProtected,
+	}
+	enc := json.NewEncoder(os.Stdout)
+	enc.SetIndent("", "  ")
+	return enc.Encode(out)
+}
+
+func printBoxSummary(s *models.BoxSummary) {
+	w := tabwriter.NewWriter(os.Stdout, 0, 0, 2, ' ', 0)
+	fmt.Fprintf(w, "ID:\t%s\n", s.ID)
+	fmt.Fprintf(w, "Files:\t%d\n", s.FileCount)
+	fmt.Fprintf(w, "Total Size:\t%s\n", s.TotalSizeLabel)
+	if !s.CreatedAt.IsZero() {
+		fmt.Fprintf(w, "Created:\t%s\n", s.CreatedAt.Format(time.RFC3339))
+	}
+	if !s.ExpiresAt.IsZero() {
+		fmt.Fprintf(w, "Expires:\t%s\n", s.ExpiresAt.Format(time.RFC3339))
+	}
+	fmt.Fprintf(w, "Expired:\t%v\n", s.Expired)
+	fmt.Fprintf(w, "Password Protected:\t%v\n", s.PasswordProtected)
+	fmt.Fprintf(w, "One-Time Download:\t%v\n", s.OneTimeDownload)
+	w.Flush()
+}
+
+// ── Get output ───────────────────────────────────────────────
+
+func formatBoxGetJSON(boxID string, manifest models.BoxManifest) error {
+	type getOut struct {
+		BoxID             string    `json:"box_id"`
+		URL               string    `json:"url"`
+		CreatedAt         time.Time `json:"created_at,omitempty"`
+		ExpiresAt         time.Time `json:"expires_at,omitempty"`
+		Expired           bool      `json:"expired"`
+		PasswordProtected bool      `json:"password_protected"`
+		OneTimeDownload   bool      `json:"one_time_download"`
+		RetentionKey      string    `json:"retention_key,omitempty"`
+		RetentionLabel    string    `json:"retention_label,omitempty"`
+	}
+	out := getOut{
+		BoxID: boxID, URL: "/box/" + boxID,
+		Expired: boxstore.IsExpired(manifest),
+	}
+	if !manifest.CreatedAt.IsZero() {
+		out.CreatedAt = manifest.CreatedAt
+	}
+	if !manifest.ExpiresAt.IsZero() {
+		out.ExpiresAt = manifest.ExpiresAt
+	}
+	out.PasswordProtected = boxstore.IsPasswordProtected(manifest)
+	out.OneTimeDownload = manifest.OneTimeDownload
+	out.RetentionKey = manifest.RetentionKey
+	out.RetentionLabel = manifest.RetentionLabel
+	enc := json.NewEncoder(os.Stdout)
+	enc.SetIndent("", "  ")
+	return enc.Encode(out)
+}
+
+// ── Change output ────────────────────────────────────────────
+
+func formatChangeResultJSON(boxID string, manifest models.BoxManifest) error {
+	type changeOut struct {
+		BoxID             string    `json:"box_id"`
+		Updated           bool      `json:"updated"`
+		CreatedAt         time.Time `json:"created_at,omitempty"`
+		ExpiresAt         time.Time `json:"expires_at,omitempty"`
+		Expired           bool      `json:"expired"`
+		PasswordProtected bool      `json:"password_protected"`
+		OneTimeDownload   bool      `json:"one_time_download"`
+		DisableZip        bool      `json:"disable_zip"`
+		RetentionKey      string    `json:"retention_key,omitempty"`
+		RetentionLabel    string    `json:"retention_label,omitempty"`
+		RetentionSeconds  int64     `json:"retention_seconds,omitempty"`
+		FileCount         int       `json:"file_count"`
+	}
+	out := changeOut{
+		BoxID: boxID, Updated: true,
+		Expired:           boxstore.IsExpired(manifest),
+		PasswordProtected: boxstore.IsPasswordProtected(manifest),
+		OneTimeDownload:   manifest.OneTimeDownload,
+		DisableZip:        manifest.DisableZip,
+		RetentionKey:      manifest.RetentionKey,
+		RetentionLabel:    manifest.RetentionLabel,
+		RetentionSeconds:  manifest.RetentionSecs,
+		FileCount:         len(manifest.Files),
+	}
+	if !manifest.CreatedAt.IsZero() {
+		out.CreatedAt = manifest.CreatedAt
+	}
+	if !manifest.ExpiresAt.IsZero() {
+		out.ExpiresAt = manifest.ExpiresAt
+	}
+	enc := json.NewEncoder(os.Stdout)
+	enc.SetIndent("", "  ")
+	return enc.Encode(out)
+}
+
+// ── Retention options ────────────────────────────────────────
+
+func printRetentionOptions() {
+	w := tabwriter.NewWriter(os.Stdout, 0, 0, 2, ' ', 0)
+	fmt.Fprintln(w, "Key\tLabel\tSeconds")
+	for _, opt := range boxstore.RetentionOptions() {
+		fmt.Fprintf(w, "%s\t%s\t%d\n", opt.Key, opt.Label, opt.Seconds)
+	}
+	w.Flush()
+}

cmd/cmd_run.go

@@ -0,0 +1,21 @@
+package main
+
+import (
+	"warpbox/lib/server"
+
+	"github.com/spf13/cobra"
+)
+
+func newRunCommand() *cobra.Command {
+	var addr string
+	cmd := &cobra.Command{
+		Use:   "run",
+		Short: "Run the HTTP server",
+		Long:  "Run the WarpBox HTTP server.",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			return server.Run(addr)
+		},
+	}
+	cmd.Flags().StringVar(&addr, "addr", ":8080", "HTTP server address")
+	return cmd
+}

cmd/main.go

@@ -5,8 +5,6 @@ import (
 	"os"
 
 	"github.com/spf13/cobra"
-
-	"warpbox/lib/server"
 )
 
 func main() {
@@ -23,17 +21,8 @@ func newRootCommand() *cobra.Command {
 		Long:  "WarpBox provides commands for running and managing the WarpBox service.",
 	}
 
-	var addr string
-	runCmd := &cobra.Command{
-		Use:   "run",
-		Short: "Run the HTTP server",
-		Long:  "Run the WarpBox HTTP server. The root endpoint responds with ok.",
-		RunE: func(cmd *cobra.Command, args []string) error {
-			return server.Run(addr)
-		},
-	}
-	runCmd.Flags().StringVar(&addr, "addr", ":8080", "HTTP server address")
-
-	rootCmd.AddCommand(runCmd)
+	rootCmd.AddCommand(newRunCommand())
+	rootCmd.AddCommand(newBoxCommand())
+	rootCmd.AddCommand(newEnvCommand())
 	return rootCmd
 }

docker-compose.example.yml

@@ -0,0 +1,11 @@
+services:
+  warpbox:
+    image: warpbox:latest
+    container_name: warpbox
+    ports:
+      - "8080:8080"
+    volumes:
+      - ./data:/app/data
+    env_file:
+      - .env
+    restart: unless-stopped

docs/tech.md

@@ -0,0 +1,194 @@
+# WarpBox Tech Stack
+
+This document is a light technical map of WarpBox. It avoids deep internals,
+but should be enough to understand what the project is built from and where the
+main pieces live.
+
+## Backend
+
+WarpBox is written in Go.
+
+Main libraries:
+
+- `github.com/gin-gonic/gin` for HTTP routing, middleware, JSON responses, and
+  HTML template rendering.
+- `github.com/gin-contrib/gzip` for compressed static asset responses.
+- `github.com/spf13/cobra` for the small command-line interface.
+
+The app starts from `cmd/main.go`. The `warpbox run` command calls the server
+package, loads templates from `templates/*.html`, registers routes, mounts
+`/static`, starts the thumbnail worker, and serves HTTP.
+
+The main request surfaces are:
+
+- `GET /` for the upload box UI.
+- `GET /box/:id` for shared box pages.
+- `GET /box/:id/login` and `POST /box/:id/login` for password-protected boxes.
+- `GET /box/:id/download` for ZIP downloads.
+- `GET /box/:id/files/:filename` for individual file downloads.
+- `GET /box/:id/thumbnails/:file_id` for image previews.
+- `POST /box` for new upload box creation.
+- `POST /box/:id/files/:file_id/upload` for manifest-based uploads.
+- `POST /box/:id/files/:file_id/status` for upload status updates.
+- `POST /box/:id/upload` and `POST /upload` for legacy upload compatibility.
+- `/admin/*` for the admin UI and settings.
+
+## Frontend
+
+The frontend is server-rendered HTML with vanilla JavaScript.
+
+- Templates live in `templates/`.
+- Browser behavior lives in `static/js/app.js` and `static/js/box.js`.
+- Styling lives in `static/css/`.
+- Visual assets, fonts, icons, cursors, popups, and sprites live under
+  `static/`.
+
+There is no frontend build step. The browser receives HTML from Gin templates
+and static assets directly from the Go server.
+
+## Storage
+
+WarpBox uses the local filesystem for box data and BadgerDB for app metadata.
+
+Uploaded boxes are stored under:
+
+```text
+data/uploads/
+```
+
+Each box directory contains uploaded files plus a `.warpbox.json` manifest.
+The manifest tracks file names, statuses, retention, password metadata,
+download options, and thumbnail state. BadgerDB stores users, tags, sessions,
+and runtime settings overrides.
+
+## Upload Flow
+
+```mermaid
+sequenceDiagram
+    participant Browser as Browser UI
+    participant Server as Gin server
+    participant Store as boxstore
+    participant Disk as Local disk
+
+    Browser->>Server: POST /box
+    Server->>Store: create box directory + manifest
+    Store->>Disk: write .warpbox.json
+    Server-->>Browser: box id + upload URLs
+    Browser->>Server: POST /box/:id/files/:file_id/upload
+    Server->>Store: save file and update manifest
+    Store->>Disk: write file + manifest
+    Browser->>Server: POST /box/:id/files/:file_id/status
+    Server->>Store: update file status
+    Store->>Disk: rewrite manifest
+    Browser->>Server: GET /box/:id/status
+    Server-->>Browser: current file states
+```
+
+## Download Flow
+
+Shared boxes are served from `/box/:id`.
+
+Users can download individual files when the box allows it. ZIP downloads are
+created on demand from the files currently marked complete. One-time download
+boxes force ZIP download and delete the box after a successful ZIP response.
+
+```mermaid
+flowchart LR
+    Shared[Shared box page]
+    File[Individual file download]
+    Zip[ZIP download]
+    OneTime[One-time ZIP only]
+    Delete[Delete box after success]
+
+    Shared --> File
+    Shared --> Zip
+    OneTime --> Zip
+    Zip --> Delete
+```
+
+## Thumbnail Worker
+
+The thumbnail worker is a background goroutine. On each pass it scans upload
+boxes, finds complete image files without thumbnails, generates small JPEG
+previews, and updates the manifest.
+
+Tuning is done with:
+
+- `WARPBOX_THUMBNAIL_BATCH_SIZE`
+- `WARPBOX_THUMBNAIL_INTERVAL_SECONDS`
+
+## Configuration
+
+Runtime configuration is centralized in `lib/config`. Startup applies built-in
+defaults, environment variables, then safe BadgerDB settings overrides.
+
+Storage paths are derived from `WARPBOX_DATA_DIR`:
+
+```text
+<WARPBOX_DATA_DIR>/uploads
+<WARPBOX_DATA_DIR>/db
+```
+
+The admin account is bootstrapped from `WARPBOX_ADMIN_PASSWORD` when no admin
+user exists. If the password is empty, admin login stays disabled unless an
+admin user already exists in BadgerDB.
+
+Primary environment variables:
+
+- `WARPBOX_DATA_DIR`
+- `WARPBOX_ADMIN_PASSWORD`
+- `WARPBOX_ADMIN_USERNAME`
+- `WARPBOX_ADMIN_EMAIL`
+- `WARPBOX_ADMIN_ENABLED`
+- `WARPBOX_ALLOW_ADMIN_SETTINGS_OVERRIDE`
+- `WARPBOX_ADMIN_COOKIE_SECURE`
+- `WARPBOX_GUEST_UPLOADS_ENABLED`
+- `WARPBOX_API_ENABLED`
+- `WARPBOX_ZIP_DOWNLOADS_ENABLED`
+- `WARPBOX_ONE_TIME_DOWNLOADS_ENABLED`
+- `WARPBOX_RENEW_ON_ACCESS_ENABLED`
+- `WARPBOX_RENEW_ON_DOWNLOAD_ENABLED`
+- `WARPBOX_DEFAULT_GUEST_EXPIRY_SECONDS`
+- `WARPBOX_MAX_GUEST_EXPIRY_SECONDS`
+- `WARPBOX_GLOBAL_MAX_FILE_SIZE_BYTES`
+- `WARPBOX_GLOBAL_MAX_BOX_SIZE_BYTES`
+- `WARPBOX_DEFAULT_USER_MAX_FILE_SIZE_BYTES`
+- `WARPBOX_DEFAULT_USER_MAX_BOX_SIZE_BYTES`
+- `WARPBOX_SESSION_TTL_SECONDS`
+- `WARPBOX_BOX_POLL_INTERVAL_MS`
+- `WARPBOX_THUMBNAIL_BATCH_SIZE`
+- `WARPBOX_THUMBNAIL_INTERVAL_SECONDS`
+
+Size limit settings accept `_MB` or `_BYTES` env names. `WARPBOX_ADMIN_ENABLED`
+accepts `auto`, `true`, or `false`.
+
+The HTTP listen address is configured through the CLI flag:
+
+```bash
+go run ./cmd run --addr :8080
+```
+
+## Code Map
+
+```text
+cmd/main.go              CLI setup
+lib/server/server.go     Gin engine setup and worker startup
+lib/server/handlers.go   HTTP handlers
+lib/server/admin.go      Admin handlers
+lib/routing/routes.go    Route table
+lib/boxstore/store.go    Box manifests, uploads, downloads, retention
+lib/boxstore/thumbnails.go
+                          Thumbnail scanning and generation
+lib/config/config.go     Typed config and settings definitions
+lib/metastore/           BadgerDB metadata store
+lib/models/models.go     Shared data structures
+```
+
+## Tests
+
+Existing tests cover config, storage, server security, and metastore behavior.
+Run them with:
+
+```bash
+go test ./...
+```

go.mod

@@ -1,44 +1,53 @@
 module warpbox
 
-go 1.22
+go 1.23.0
 
 require (
+	github.com/dgraph-io/badger/v4 v4.8.0
 	github.com/gin-contrib/gzip v1.0.1
 	github.com/gin-gonic/gin v1.10.0
-	github.com/spf13/cobra v1.8.1
+	github.com/spf13/cobra v1.9.1
+	golang.org/x/crypto v0.39.0
 )
 
 require (
 	github.com/bytedance/sonic v1.11.6 // indirect
 	github.com/bytedance/sonic/loader v0.1.1 // indirect
+	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/cloudwego/base64x v0.1.4 // indirect
 	github.com/cloudwego/iasm v0.2.0 // indirect
+	github.com/dgraph-io/ristretto/v2 v2.2.0 // indirect
+	github.com/dustin/go-humanize v1.0.1 // indirect
 	github.com/gabriel-vasile/mimetype v1.4.3 // indirect
 	github.com/gin-contrib/sse v0.1.0 // indirect
+	github.com/go-logr/logr v1.4.3 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/go-playground/locales v0.14.1 // indirect
 	github.com/go-playground/universal-translator v0.18.1 // indirect
 	github.com/go-playground/validator/v10 v10.20.0 // indirect
 	github.com/goccy/go-json v0.10.2 // indirect
+	github.com/google/flatbuffers v25.2.10+incompatible // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/klauspost/compress v1.18.0 // indirect
 	github.com/klauspost/cpuid/v2 v2.2.7 // indirect
-	github.com/kr/pretty v0.3.1 // indirect
 	github.com/leodido/go-urn v1.4.0 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/pelletier/go-toml/v2 v2.2.2 // indirect
-	github.com/rogpeppe/go-internal v1.10.0 // indirect
-	github.com/spf13/pflag v1.0.5 // indirect
+	github.com/spf13/pflag v1.0.6 // indirect
 	github.com/stretchr/testify v1.11.1 // indirect
 	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
 	github.com/ugorji/go/codec v1.2.12 // indirect
+	go.opentelemetry.io/auto/sdk v1.1.0 // indirect
+	go.opentelemetry.io/otel v1.37.0 // indirect
+	go.opentelemetry.io/otel/metric v1.37.0 // indirect
+	go.opentelemetry.io/otel/trace v1.37.0 // indirect
 	golang.org/x/arch v0.8.0 // indirect
-	golang.org/x/crypto v0.23.0 // indirect
-	golang.org/x/net v0.25.0 // indirect
-	golang.org/x/sys v0.20.0 // indirect
-	golang.org/x/text v0.15.0 // indirect
-	google.golang.org/protobuf v1.34.1 // indirect
-	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
+	golang.org/x/net v0.41.0 // indirect
+	golang.org/x/sys v0.34.0 // indirect
+	golang.org/x/text v0.26.0 // indirect
+	google.golang.org/protobuf v1.36.6 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -2,15 +2,24 @@ github.com/bytedance/sonic v1.11.6 h1:oUp34TzMlL+OY1OUWxHqsdkgC/Zfc85zGqw9siXjrc
 github.com/bytedance/sonic v1.11.6/go.mod h1:LysEHSvpvDySVdC2f87zGWf6CIKJcAvqab1ZaiQtds4=
 github.com/bytedance/sonic/loader v0.1.1 h1:c+e5Pt1k/cy5wMveRDyk2X4B9hF4g7an8N3zCYjJFNM=
 github.com/bytedance/sonic/loader v0.1.1/go.mod h1:ncP89zfokxS5LZrJxl5z0UJcsk4M4yY2JpfqGeCtNLU=
+github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
+github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/cloudwego/base64x v0.1.4 h1:jwCgWpFanWmN8xoIUHa2rtzmkd5J2plF/dnLS6Xd/0Y=
 github.com/cloudwego/base64x v0.1.4/go.mod h1:0zlkT4Wn5C6NdauXdJRhSKRlJvmclQ1hhJgA0rcu/8w=
 github.com/cloudwego/iasm v0.2.0 h1:1KNIy1I1H9hNNFEEH3DVnI4UujN+1zjpuk6gwHLTssg=
 github.com/cloudwego/iasm v0.2.0/go.mod h1:8rXZaNYT2n95jn+zTI1sDr+IgcD2GVs0nlbbQPiEFhY=
-github.com/cpuguy83/go-md2man/v2 v2.0.4/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
-github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
+github.com/cpuguy83/go-md2man/v2 v2.0.6/go.mod h1:oOW0eioCTA6cOiMLiUPZOpcVxMig6NIQQ7OS05n1F4g=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/dgraph-io/badger/v4 v4.8.0 h1:JYph1ChBijCw8SLeybvPINizbDKWZ5n/GYbz2yhN/bs=
+github.com/dgraph-io/badger/v4 v4.8.0/go.mod h1:U6on6e8k/RTbUWxqKR0MvugJuVmkxSNc79ap4917h4w=
+github.com/dgraph-io/ristretto/v2 v2.2.0 h1:bkY3XzJcXoMuELV8F+vS8kzNgicwQFAaGINAEJdWGOM=
+github.com/dgraph-io/ristretto/v2 v2.2.0/go.mod h1:RZrm63UmcBAaYWC1DotLYBmTvgkrs0+XhBd7Npn7/zI=
+github.com/dgryski/go-farm v0.0.0-20240924180020-3414d57e47da h1:aIftn67I1fkbMa512G+w+Pxci9hJPB8oMnkcP3iZF38=
+github.com/dgryski/go-farm v0.0.0-20240924180020-3414d57e47da/go.mod h1:SqUrOPUnsFjfmXRMNPybcSiG0BgUW2AuFH8PAnS2iTw=
+github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
+github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
 github.com/gabriel-vasile/mimetype v1.4.3 h1:in2uUcidCuFcDKtdcBxlR0rJ1+fsokWf+uqxgUFjbI0=
 github.com/gabriel-vasile/mimetype v1.4.3/go.mod h1:d8uq/6HKRL6CGdk+aubisF/M5GcPfT7nKyLpA0lbSSk=
 github.com/gin-contrib/gzip v1.0.1 h1:HQ8ENHODeLY7a4g1Au/46Z92bdGFl74OhxcZble9WJE=
@@ -19,6 +28,11 @@ github.com/gin-contrib/sse v0.1.0 h1:Y/yl/+YNO8GZSjAhjMsSuLt29uWRFHdHYUb5lYOV9qE
 github.com/gin-contrib/sse v0.1.0/go.mod h1:RHrZQHXnP2xjPF+u1gW/2HnVO7nvIa9PG3Gm+fLHvGI=
 github.com/gin-gonic/gin v1.10.0 h1:nTuyha1TYqgedzytsKYqna+DfLos46nTv2ygFy86HFU=
 github.com/gin-gonic/gin v1.10.0/go.mod h1:4PMNQiOhvDRa013RKVbsiNwoyezlm2rm0uX/T7kzp5Y=
+github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
+github.com/go-logr/logr v1.4.3 h1:CjnDlHq8ikf6E492q6eKboGOC0T8CDaOvkHCIg8idEI=
+github.com/go-logr/logr v1.4.3/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
+github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag=
+github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
 github.com/go-playground/assert/v2 v2.2.0 h1:JvknZsQTYeFEAhQwI4qEt9cyV5ONwRHC+lYKSsYSR8s=
 github.com/go-playground/assert/v2 v2.2.0/go.mod h1:VDjEfimB/XKnb+ZQfWdccd7VUvScMdVu0Titje2rxJ4=
 github.com/go-playground/locales v0.14.1 h1:EWaQ/wswjilfKLTECiXz7Rh+3BjFhfDFKv/oXslEjJA=
@@ -29,22 +43,23 @@ github.com/go-playground/validator/v10 v10.20.0 h1:K9ISHbSaI0lyB2eWMPJo+kOS/FBEx
 github.com/go-playground/validator/v10 v10.20.0/go.mod h1:dbuPbCMFw/DrkbEynArYaCwl3amGuJotoKCe95atGMM=
 github.com/goccy/go-json v0.10.2 h1:CrxCmQqYDkv1z7lO7Wbh2HN93uovUHgrECaO5ZrCXAU=
 github.com/goccy/go-json v0.10.2/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MGFi0w8I=
-github.com/google/go-cmp v0.5.5 h1:Khx7svrCpmxxtHBq5j2mp/xVjsi8hQMfNLvJFAlrGgU=
-github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/flatbuffers v25.2.10+incompatible h1:F3vclr7C3HpB1k9mxCGRMXq6FdUalZ6H/pNX4FP1v0Q=
+github.com/google/flatbuffers v25.2.10+incompatible/go.mod h1:1AeVuKshWv4vARoZatz6mlQ0JxURH0Kv5+zNeJKJCa8=
+github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
+github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
 github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
 github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
 github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=
 github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
+github.com/klauspost/compress v1.18.0 h1:c/Cqfb0r+Yi+JtIEq73FWXVkRonBlf0CRNYc8Zttxdo=
+github.com/klauspost/compress v1.18.0/go.mod h1:2Pp+KzxcywXVXMr50+X0Q/Lsb43OQHYWRCY2AiWywWQ=
 github.com/klauspost/cpuid/v2 v2.0.9/go.mod h1:FInQzS24/EEf25PyTYn52gqo7WaD8xa0213Md/qVLRg=
 github.com/klauspost/cpuid/v2 v2.2.7 h1:ZWSB3igEs+d0qvnxR/ZBzXVmxkgt8DdzP6m9pfuVLDM=
 github.com/klauspost/cpuid/v2 v2.2.7/go.mod h1:Lcz8mBdAVJIBVzewtcLocK12l3Y+JytZYpaMropDUws=
 github.com/knz/go-libedit v1.10.1/go.mod h1:MZTVkCWyz0oBc7JOWP3wNAzd002ZbM/5hgShxwh4x8M=
-github.com/kr/pretty v0.2.1/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
 github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
 github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
-github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
-github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
 github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
 github.com/leodido/go-urn v1.4.0 h1:WT9HwE9SGECu3lg4d/dIA+jxlljEa1/ffXKmRjqdmIQ=
@@ -58,17 +73,15 @@ github.com/modern-go/reflect2 v1.0.2 h1:xBagoLtFs94CBntxluKeaWgTMpvLxC4ur3nMaC9G
 github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjYzDa0/r8luk=
 github.com/pelletier/go-toml/v2 v2.2.2 h1:aYUidT7k73Pcl9nb2gScu7NSrKCSHIDE89b3+6Wq+LM=
 github.com/pelletier/go-toml/v2 v2.2.2/go.mod h1:1t835xjRzz80PqgE6HHgN2JOsmgYu/h4qDAS4n929Rs=
-github.com/pkg/diff v0.0.0-20210226163009-20ebb0f2a09e/go.mod h1:pJLUxLENpZxwdsKMEsNbx1VGcRFpLqf3715MtcvvzbA=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/rogpeppe/go-internal v1.9.0/go.mod h1:WtVeX8xhTBvf0smdhujwtBcq4Qrzq/fJaraNFVN+nFs=
-github.com/rogpeppe/go-internal v1.10.0 h1:TMyTOH3F/DB16zRVcYyreMH6GnZZrwQVAoYjRBZyWFQ=
-github.com/rogpeppe/go-internal v1.10.0/go.mod h1:UQnix2H7Ngw/k4C5ijL5+65zddjncjaFoBhdsK/akog=
+github.com/rogpeppe/go-internal v1.13.1 h1:KvO1DLK/DRN07sQ1LQKScxyZJuNnedQ5/wKSR38lUII=
+github.com/rogpeppe/go-internal v1.13.1/go.mod h1:uMEvuHeurkdAXX61udpOXGD/AzZDWNMNyH2VO9fmH0o=
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
-github.com/spf13/cobra v1.8.1 h1:e5/vxKd/rZsfSJMUX1agtjeTDf+qv1/JdBF8gg5k9ZM=
-github.com/spf13/cobra v1.8.1/go.mod h1:wHxEcudfqmLYa8iTfL+OuZPbBZkmvliBWKIezN3kD9Y=
-github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
-github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
+github.com/spf13/cobra v1.9.1 h1:CXSaggrXdbHK9CF+8ywj8Amf7PBRmPCOJugH954Nnlo=
+github.com/spf13/cobra v1.9.1/go.mod h1:nDyEzZ8ogv936Cinf6g1RU9MRY64Ir93oCnqb9wxYW0=
+github.com/spf13/pflag v1.0.6 h1:jFzHGLGAlb3ruxLB8MhbI6A8+AQX/2eW4qeyNZXNp2o=
+github.com/spf13/pflag v1.0.6/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
 github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
@@ -86,23 +99,29 @@ github.com/twitchyliquid64/golang-asm v0.15.1 h1:SU5vSMR7hnwNxj24w34ZyCi/FmDZTkS
 github.com/twitchyliquid64/golang-asm v0.15.1/go.mod h1:a1lVb/DtPvCB8fslRZhAngC2+aY1QWCk3Cedj/Gdt08=
 github.com/ugorji/go/codec v1.2.12 h1:9LC83zGrHhuUA9l16C9AHXAqEV/2wBQ4nkvumAE65EE=
 github.com/ugorji/go/codec v1.2.12/go.mod h1:UNopzCgEMSXjBc6AOMqYvWC1ktqTAfzJZUZgYf6w6lg=
+go.opentelemetry.io/auto/sdk v1.1.0 h1:cH53jehLUN6UFLY71z+NDOiNJqDdPRaXzTel0sJySYA=
+go.opentelemetry.io/auto/sdk v1.1.0/go.mod h1:3wSPjt5PWp2RhlCcmmOial7AvC4DQqZb7a7wCow3W8A=
+go.opentelemetry.io/otel v1.37.0 h1:9zhNfelUvx0KBfu/gb+ZgeAfAgtWrfHJZcAqFC228wQ=
+go.opentelemetry.io/otel v1.37.0/go.mod h1:ehE/umFRLnuLa/vSccNq9oS1ErUlkkK71gMcN34UG8I=
+go.opentelemetry.io/otel/metric v1.37.0 h1:mvwbQS5m0tbmqML4NqK+e3aDiO02vsf/WgbsdpcPoZE=
+go.opentelemetry.io/otel/metric v1.37.0/go.mod h1:04wGrZurHYKOc+RKeye86GwKiTb9FKm1WHtO+4EVr2E=
+go.opentelemetry.io/otel/trace v1.37.0 h1:HLdcFNbRQBE2imdSEgm/kwqmQj1Or1l/7bW6mxVK7z4=
+go.opentelemetry.io/otel/trace v1.37.0/go.mod h1:TlgrlQ+PtQO5XFerSPUYG0JSgGyryXewPGyayAWSBS0=
 golang.org/x/arch v0.0.0-20210923205945-b76863e36670/go.mod h1:5om86z9Hs0C8fWVUuoMHwpExlXzs5Tkyp9hOrfG7pp8=
 golang.org/x/arch v0.8.0 h1:3wRIsP3pM4yUptoR96otTUOXI367OS0+c9eeRi9doIc=
 golang.org/x/arch v0.8.0/go.mod h1:FEVrYAQjsQXMVJ1nsMoVVXPZg6p2JE2mx8psSWTDQys=
-golang.org/x/crypto v0.23.0 h1:dIJU/v2J8Mdglj/8rJ6UUOM3Zc9zLZxVZwwxMooUSAI=
-golang.org/x/crypto v0.23.0/go.mod h1:CKFgDieR+mRhux2Lsu27y0fO304Db0wZe70UKqHu0v8=
-golang.org/x/net v0.25.0 h1:d/OCCoBEUq33pjydKrGQhw7IlUPI2Oylr+8qLx49kac=
-golang.org/x/net v0.25.0/go.mod h1:JkAGAh7GEvH74S6FOH42FLoXpXbE/aqXSrIQjXgsiwM=
+golang.org/x/crypto v0.39.0 h1:SHs+kF4LP+f+p14esP5jAoDpHU8Gu/v9lFRK6IT5imM=
+golang.org/x/crypto v0.39.0/go.mod h1:L+Xg3Wf6HoL4Bn4238Z6ft6KfEpN0tJGo53AAPC632U=
+golang.org/x/net v0.41.0 h1:vBTly1HeNPEn3wtREYfy4GZ/NECgw2Cnl+nK6Nz3uvw=
+golang.org/x/net v0.41.0/go.mod h1:B/K4NNqkfmg07DQYrbwvSluqCJOOXwUjeb/5lOisjbA=
 golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.20.0 h1:Od9JTbYCk261bKm4M/mw7AklTlFYIa0bIp9BgSm1S8Y=
-golang.org/x/sys v0.20.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
-golang.org/x/text v0.15.0 h1:h1V/4gjBv8v9cjcR6+AR5+/cIYK5N/WAgiv4xlsEtAk=
-golang.org/x/text v0.15.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
-golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
-golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-google.golang.org/protobuf v1.34.1 h1:9ddQBjfCyZPOHPUiPxpYESBLc+T8P3E+Vo4IbKZgFWg=
-google.golang.org/protobuf v1.34.1/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
+golang.org/x/sys v0.34.0 h1:H5Y5sJ2L2JRdyv7ROF1he/lPdvFsd0mJHFw2ThKHxLA=
+golang.org/x/sys v0.34.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
+golang.org/x/text v0.26.0 h1:P42AVeLghgTYr4+xUnTRKDMqpar+PtX7KWuNQL21L8M=
+golang.org/x/text v0.26.0/go.mod h1:QK15LZJUUQVJxhz7wXgxSy/CJaTFjd0G+YLonydOVQA=
+google.golang.org/protobuf v1.36.6 h1:z1NpPI8ku2WgiWnf+t9wTPsn6eP1L7ksHUlkfLvd9xY=
+google.golang.org/protobuf v1.36.6/go.mod h1:jduwjTPXsFjZGTmRluh+L6NjiWu7pchiJ2/5YcXBHnY=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=

lib/boxstore/files.go

@@ -0,0 +1,222 @@
+package boxstore
+
+import (
+	"fmt"
+	"io"
+	"mime/multipart"
+	"net/url"
+	"os"
+	"path/filepath"
+
+	"warpbox/lib/helpers"
+	"warpbox/lib/models"
+)
+
+func ListFiles(boxID string) ([]models.BoxFile, error) {
+	if manifest, err := reconcileManifest(boxID); err == nil && len(manifest.Files) > 0 {
+		return DecorateFiles(boxID, manifest.Files), nil
+	}
+
+	return listCompletedFilesFromDisk(boxID)
+}
+func SaveManifestUpload(boxID string, fileID string, file *multipart.FileHeader) (models.BoxFile, error) {
+	manifestMu.Lock()
+	defer manifestMu.Unlock()
+
+	manifest, err := readManifestUnlocked(boxID)
+	if err != nil {
+		return models.BoxFile{}, err
+	}
+	if IsExpired(manifest) {
+		return models.BoxFile{}, fmt.Errorf("Box expired")
+	}
+
+	fileIndex := -1
+	for index, manifestFile := range manifest.Files {
+		if manifestFile.ID == fileID {
+			fileIndex = index
+			break
+		}
+	}
+
+	if fileIndex < 0 {
+		return models.BoxFile{}, fmt.Errorf("File not found")
+	}
+
+	filename := manifest.Files[fileIndex].Name
+	if err := os.MkdirAll(BoxPath(boxID), 0755); err != nil {
+		return models.BoxFile{}, fmt.Errorf("Could not prepare upload box")
+	}
+
+	destination, ok := SafeBoxFilePath(boxID, filename)
+	if !ok {
+		return models.BoxFile{}, fmt.Errorf("Invalid filename")
+	}
+	if err := saveMultipartFile(file, destination); err != nil {
+		manifest.Files[fileIndex].Status = models.FileStatusFailed
+		startRetentionIfTerminalUnlocked(&manifest)
+		writeManifestUnlocked(boxID, manifest)
+		return models.BoxFile{}, fmt.Errorf("Could not save uploaded file")
+	}
+
+	manifest.Files[fileIndex].Size = file.Size
+	manifest.Files[fileIndex].MimeType = helpers.MimeTypeForFile(destination, filename)
+	manifest.Files[fileIndex].Status = models.FileStatusReady
+	startRetentionIfTerminalUnlocked(&manifest)
+	if err := writeManifestUnlocked(boxID, manifest); err != nil {
+		return models.BoxFile{}, err
+	}
+
+	return DecorateFile(boxID, manifest.Files[fileIndex]), nil
+}
+
+func SaveUpload(boxID string, file *multipart.FileHeader) (models.BoxFile, error) {
+	filename, ok := helpers.SafeFilename(file.Filename)
+	if !ok {
+		return models.BoxFile{}, fmt.Errorf("Invalid filename")
+	}
+
+	boxPath := BoxPath(boxID)
+	if err := os.MkdirAll(boxPath, 0755); err != nil {
+		return models.BoxFile{}, fmt.Errorf("Could not prepare upload box")
+	}
+
+	filename = helpers.UniqueFilename(boxPath, filename)
+	destination, ok := SafeBoxFilePath(boxID, filename)
+	if !ok {
+		return models.BoxFile{}, fmt.Errorf("Invalid filename")
+	}
+	if err := saveMultipartFile(file, destination); err != nil {
+		return models.BoxFile{}, fmt.Errorf("Could not save uploaded file")
+	}
+
+	return DecorateFile(boxID, models.BoxFile{
+		ID:       filename,
+		Name:     filename,
+		Size:     file.Size,
+		MimeType: helpers.MimeTypeForFile(destination, filename),
+		Status:   models.FileStatusReady,
+	}), nil
+}
+
+func DecorateFile(boxID string, file models.BoxFile) models.BoxFile {
+	if file.MimeType == "" {
+		if path, ok := SafeBoxFilePath(boxID, file.Name); ok {
+			file.MimeType = helpers.MimeTypeForFile(path, file.Name)
+		}
+	}
+
+	if file.SizeLabel == "" {
+		file.SizeLabel = helpers.FormatBytes(file.Size)
+	}
+
+	file.IconPath = IconForMimeType(file.MimeType, file.Name)
+	if file.ThumbnailPath != nil {
+		file.ThumbnailURL = *file.ThumbnailPath
+	}
+	file.DownloadPath = "/box/" + boxID + "/files/" + url.PathEscape(file.Name)
+	file.UploadPath = "/box/" + boxID + "/files/" + url.PathEscape(file.ID) + "/upload"
+	file.IsComplete = file.Status == models.FileStatusReady
+
+	switch file.Status {
+	case models.FileStatusReady:
+		file.StatusLabel = "Ready"
+		file.Title = "Download " + file.Name
+	case models.FileStatusFailed:
+		file.StatusLabel = "Failed"
+		file.Title = "Failed to upload"
+	case models.FileStatusWork:
+		file.StatusLabel = "Loading"
+		file.Title = "Loading"
+	default:
+		file.Status = models.FileStatusWait
+		file.StatusLabel = "Waiting"
+		file.Title = "Loading"
+	}
+
+	return file
+}
+
+func DecorateFiles(boxID string, files []models.BoxFile) []models.BoxFile {
+	decorated := make([]models.BoxFile, 0, len(files))
+	for _, file := range files {
+		decorated = append(decorated, DecorateFile(boxID, file))
+	}
+	return decorated
+}
+func listCompletedFilesFromDisk(boxID string) ([]models.BoxFile, error) {
+	entries, err := os.ReadDir(BoxPath(boxID))
+	if err != nil {
+		return nil, err
+	}
+
+	files := make([]models.BoxFile, 0, len(entries))
+	for _, entry := range entries {
+		if entry.IsDir() || entry.Name() == manifestFile || entry.Type()&os.ModeSymlink != 0 {
+			continue
+		}
+
+		info, err := entry.Info()
+		if err != nil {
+			return nil, err
+		}
+		if !info.Mode().IsRegular() {
+			continue
+		}
+
+		name := entry.Name()
+		files = append(files, DecorateFile(boxID, models.BoxFile{
+			ID:       name,
+			Name:     name,
+			Size:     info.Size(),
+			MimeType: helpers.MimeTypeForFile(filepath.Join(BoxPath(boxID), name), name),
+			Status:   models.FileStatusReady,
+		}))
+	}
+
+	return files, nil
+}
+func saveMultipartFile(file *multipart.FileHeader, destination string) error {
+	source, err := file.Open()
+	if err != nil {
+		return err
+	}
+	defer source.Close()
+
+	target, tempPath, err := createTempSibling(destination)
+	if err != nil {
+		return err
+	}
+	committed := false
+	defer func() {
+		target.Close()
+		if !committed {
+			os.Remove(tempPath)
+		}
+	}()
+
+	if _, err := io.Copy(target, source); err != nil {
+		return err
+	}
+	if err := target.Close(); err != nil {
+		return err
+	}
+	if err := os.Rename(tempPath, destination); err != nil {
+		return err
+	}
+	committed = true
+	return nil
+}
+
+func createTempSibling(destination string) (*os.File, string, error) {
+	directory := filepath.Dir(destination)
+	if err := os.MkdirAll(directory, 0755); err != nil {
+		return nil, "", err
+	}
+
+	target, err := os.CreateTemp(directory, ".warpbox-upload-*")
+	if err != nil {
+		return nil, "", err
+	}
+	return target, target.Name(), nil
+}

lib/boxstore/icons.go

@@ -0,0 +1,33 @@
+package boxstore
+
+import (
+	"path/filepath"
+	"strings"
+)
+
+func IconForMimeType(mimeType string, filename string) string {
+	extension := strings.ToLower(filepath.Ext(filename))
+
+	switch {
+	case extension == ".exe":
+		return "/static/img/icons/Program Files Icons - PNG/MSONSEXT.DLL_14_6-0.png"
+	case strings.HasPrefix(mimeType, "image/"):
+		return "/static/img/sprites/bitmap.png"
+	case strings.HasPrefix(mimeType, "video/"):
+		return "/static/img/icons/netshow_notransm-1.png"
+	case strings.HasPrefix(mimeType, "audio/"):
+		return "/static/img/icons/netshow_notransm-1.png"
+	case strings.HasPrefix(mimeType, "text/") || extension == ".md":
+		return "/static/img/sprites/notepad_file-1.png"
+	case strings.Contains(mimeType, "zip") || strings.Contains(mimeType, "compressed") || extension == ".rar" || extension == ".7z" || extension == ".tar" || extension == ".gz":
+		return "/static/img/icons/Windows Icons - PNG/zipfldr.dll_14_101-0.png"
+	case extension == ".ttf" || extension == ".otf" || extension == ".woff" || extension == ".woff2":
+		return "/static/img/sprites/font.png"
+	case extension == ".pdf":
+		return "/static/img/sprites/journal.png"
+	case extension == ".html" || extension == ".css" || extension == ".js":
+		return "/static/img/sprites/frame_web-0.png"
+	default:
+		return "/static/img/icons/Windows Icons - PNG/ole2.dll_14_DEFICON.png"
+	}
+}

lib/boxstore/manifest.go

@@ -0,0 +1,220 @@
+package boxstore
+
+import (
+	"encoding/json"
+	"fmt"
+	"mime"
+	"os"
+	"path/filepath"
+	"strings"
+	"sync"
+	"time"
+
+	"golang.org/x/crypto/bcrypt"
+
+	"warpbox/lib/helpers"
+	"warpbox/lib/models"
+)
+
+var manifestMu sync.Mutex
+
+func CreateManifest(boxID string, request models.CreateBoxRequest) ([]models.BoxFile, error) {
+	retention := normalizeRetentionOption(request.RetentionKey)
+	usedNames := make(map[string]int, len(request.Files))
+	files := make([]models.BoxFile, 0, len(request.Files))
+
+	for _, fileRequest := range request.Files {
+		filename, ok := helpers.SafeFilename(fileRequest.Name)
+		if !ok {
+			return nil, fmt.Errorf("Invalid filename")
+		}
+
+		filename = helpers.UniqueNameInBatch(filename, usedNames)
+		fileID, err := helpers.RandomHexID(8)
+		if err != nil {
+			return nil, fmt.Errorf("Could not create file id")
+		}
+
+		mimeType := mime.TypeByExtension(strings.ToLower(filepath.Ext(filename)))
+		if mimeType == "" {
+			mimeType = "application/octet-stream"
+		}
+
+		files = append(files, models.BoxFile{
+			ID:       fileID,
+			Name:     filename,
+			Size:     fileRequest.Size,
+			MimeType: mimeType,
+			Status:   models.FileStatusWait,
+		})
+	}
+
+	now := time.Now().UTC()
+	disableZip := false
+	if request.AllowZip != nil {
+		disableZip = !*request.AllowZip
+	}
+	oneTimeDownload := retention.Key == OneTimeDownloadRetentionKey
+	if oneTimeDownload {
+		disableZip = false
+	}
+
+	manifest := models.BoxManifest{
+		Files:           files,
+		CreatedAt:       now,
+		RetentionKey:    retention.Key,
+		RetentionLabel:  retention.Label,
+		RetentionSecs:   retention.Seconds,
+		DisableZip:      disableZip,
+		OneTimeDownload: oneTimeDownload,
+	}
+
+	if password := strings.TrimSpace(request.Password); password != "" {
+		authToken, err := helpers.RandomHexID(16)
+		if err != nil {
+			return nil, fmt.Errorf("Could not secure upload box")
+		}
+		passwordHash, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
+		if err != nil {
+			return nil, fmt.Errorf("Could not secure upload box")
+		}
+
+		manifest.PasswordHash = string(passwordHash)
+		manifest.PasswordHashAlg = "bcrypt"
+		manifest.AuthToken = authToken
+	}
+
+	if err := WriteManifest(boxID, manifest); err != nil {
+		return nil, err
+	}
+
+	decoratedFiles := make([]models.BoxFile, 0, len(files))
+	for _, file := range files {
+		decoratedFiles = append(decoratedFiles, DecorateFile(boxID, file))
+	}
+
+	return decoratedFiles, nil
+}
+func MarkFileStatus(boxID string, fileID string, status string) (models.BoxFile, error) {
+	if status != models.FileStatusWait && status != models.FileStatusWork && status != models.FileStatusReady && status != models.FileStatusFailed {
+		return models.BoxFile{}, fmt.Errorf("Invalid file status")
+	}
+
+	manifestMu.Lock()
+	defer manifestMu.Unlock()
+
+	manifest, err := readManifestUnlocked(boxID)
+	if err != nil {
+		return models.BoxFile{}, err
+	}
+
+	for index, file := range manifest.Files {
+		if file.ID != fileID {
+			continue
+		}
+
+		manifest.Files[index].Status = status
+		startRetentionIfTerminalUnlocked(&manifest)
+		if err := writeManifestUnlocked(boxID, manifest); err != nil {
+			return models.BoxFile{}, err
+		}
+
+		return DecorateFile(boxID, manifest.Files[index]), nil
+	}
+
+	return models.BoxFile{}, fmt.Errorf("File not found")
+}
+
+func ReadManifest(boxID string) (models.BoxManifest, error) {
+	manifestMu.Lock()
+	defer manifestMu.Unlock()
+
+	return readManifestUnlocked(boxID)
+}
+
+func WriteManifest(boxID string, manifest models.BoxManifest) error {
+	manifestMu.Lock()
+	defer manifestMu.Unlock()
+
+	return writeManifestUnlocked(boxID, manifest)
+}
+
+func RenewManifest(boxID string, seconds int64) (models.BoxManifest, error) {
+	manifestMu.Lock()
+	defer manifestMu.Unlock()
+
+	manifest, err := readManifestUnlocked(boxID)
+	if err != nil {
+		return manifest, err
+	}
+	if seconds <= 0 || manifest.OneTimeDownload || manifest.ExpiresAt.IsZero() {
+		return manifest, nil
+	}
+	manifest.ExpiresAt = time.Now().UTC().Add(time.Duration(seconds) * time.Second)
+	return manifest, writeManifestUnlocked(boxID, manifest)
+}
+func reconcileManifest(boxID string) (models.BoxManifest, error) {
+	manifestMu.Lock()
+	defer manifestMu.Unlock()
+
+	manifest, err := readManifestUnlocked(boxID)
+	if err != nil {
+		return manifest, err
+	}
+
+	changed := false
+	for index, file := range manifest.Files {
+		path, ok := SafeBoxFilePath(boxID, file.Name)
+		if !ok || ensureRegularFile(path) != nil {
+			continue
+		}
+		info, err := os.Stat(path)
+		if err != nil || !info.Mode().IsRegular() {
+			continue
+		}
+
+		if file.Status == models.FileStatusReady && file.Size == info.Size() {
+			continue
+		}
+
+		// The manifest is the UI source of truth, but disk wins when an upload
+		// was saved and the final status write/response was interrupted.
+		manifest.Files[index].Size = info.Size()
+		manifest.Files[index].MimeType = helpers.MimeTypeForFile(path, file.Name)
+		manifest.Files[index].Status = models.FileStatusReady
+		changed = true
+	}
+
+	if changed {
+		startRetentionIfTerminalUnlocked(&manifest)
+		if err := writeManifestUnlocked(boxID, manifest); err != nil {
+			return manifest, err
+		}
+	}
+
+	return manifest, nil
+}
+func readManifestUnlocked(boxID string) (models.BoxManifest, error) {
+	var manifest models.BoxManifest
+	data, err := os.ReadFile(ManifestPath(boxID))
+	if err != nil {
+		return manifest, err
+	}
+
+	if err := json.Unmarshal(data, &manifest); err != nil {
+		return manifest, err
+	}
+
+	return manifest, nil
+}
+
+// Manifest writes are serialized because the browser can upload several files
+// concurrently into the same box. Without this lock, status updates can race.
+func writeManifestUnlocked(boxID string, manifest models.BoxManifest) error {
+	data, err := json.MarshalIndent(manifest, "", "  ")
+	if err != nil {
+		return err
+	}
+
+	return os.WriteFile(ManifestPath(boxID), data, 0644)
+}

lib/boxstore/paths.go

@@ -0,0 +1,79 @@
+package boxstore
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+
+	"warpbox/lib/helpers"
+)
+
+const manifestFile = ".warpbox.json"
+
+var uploadRoot = filepath.Join("data", "uploads")
+
+func NewBoxID() (string, error) {
+	return helpers.RandomHexID(16)
+}
+
+func ValidBoxID(boxID string) bool {
+	return helpers.ValidLowerHexID(boxID, 32)
+}
+func SetUploadRoot(path string) {
+	if path == "" {
+		return
+	}
+	uploadRoot = filepath.Clean(path)
+}
+func UploadRoot() string {
+	return uploadRoot
+}
+
+func BoxPath(boxID string) string {
+	return filepath.Join(uploadRoot, boxID)
+}
+
+func safeBoxPath(boxID string) (string, bool) {
+	if !ValidBoxID(boxID) {
+		return "", false
+	}
+	return helpers.SafeChildPath(uploadRoot, boxID)
+}
+
+func ManifestPath(boxID string) string {
+	return filepath.Join(BoxPath(boxID), manifestFile)
+}
+
+func SafeBoxFilePath(boxID string, filename string) (string, bool) {
+	boxPath, ok := safeBoxPath(boxID)
+	if !ok {
+		return "", false
+	}
+	return helpers.SafeChildPath(boxPath, filename)
+}
+
+func IsSafeRegularBoxFile(boxID string, filename string) bool {
+	path, ok := SafeBoxFilePath(boxID, filename)
+	if !ok {
+		return false
+	}
+	return ensureRegularFile(path) == nil
+}
+
+func DeleteBox(boxID string) error {
+	boxPath, ok := safeBoxPath(boxID)
+	if !ok {
+		return fmt.Errorf("Invalid box id")
+	}
+	return os.RemoveAll(boxPath)
+}
+func ensureRegularFile(path string) error {
+	info, err := os.Lstat(path)
+	if err != nil {
+		return err
+	}
+	if info.Mode()&os.ModeSymlink != 0 || !info.Mode().IsRegular() {
+		return fmt.Errorf("Invalid file")
+	}
+	return nil
+}

lib/boxstore/retention.go

@@ -0,0 +1,74 @@
+package boxstore
+
+import (
+	"time"
+
+	"warpbox/lib/models"
+)
+
+const OneTimeDownloadRetentionKey = "one-time"
+
+var oneTimeDownloadExpiry int64
+
+var retentionOptions = []models.RetentionOption{
+	{Key: "10s", Label: "10 seconds", Seconds: 10},
+	{Key: "10m", Label: "10 minutes", Seconds: 10 * 60},
+	{Key: "1h", Label: "1 hour", Seconds: 60 * 60},
+	{Key: "12h", Label: "12 hours", Seconds: 12 * 60 * 60},
+	{Key: "24h", Label: "24 hours", Seconds: 24 * 60 * 60},
+	{Key: "48h", Label: "48 hours", Seconds: 48 * 60 * 60},
+	{Key: OneTimeDownloadRetentionKey, Label: "One time download", Seconds: 0},
+}
+
+func RetentionOptions() []models.RetentionOption {
+	options := make([]models.RetentionOption, len(retentionOptions))
+	copy(options, retentionOptions)
+	return options
+}
+
+func DefaultRetentionOption() models.RetentionOption {
+	return retentionOptions[0]
+}
+func SetOneTimeDownloadExpiry(seconds int64) {
+	oneTimeDownloadExpiry = seconds
+}
+
+func OneTimeDownloadExpiry() int64 {
+	return oneTimeDownloadExpiry
+}
+func normalizeRetentionOption(key string) models.RetentionOption {
+	for _, option := range retentionOptions {
+		if option.Key == key {
+			return option
+		}
+	}
+
+	return DefaultRetentionOption()
+}
+
+func startRetentionIfTerminalUnlocked(manifest *models.BoxManifest) {
+	if !manifest.ExpiresAt.IsZero() || len(manifest.Files) == 0 {
+		return
+	}
+
+	seconds := manifest.RetentionSecs
+	if manifest.OneTimeDownload {
+		seconds = oneTimeDownloadExpiry
+	} else if seconds <= 0 {
+		seconds = normalizeRetentionOption(manifest.RetentionKey).Seconds
+	}
+
+	if seconds <= 0 {
+		return
+	}
+
+	for _, file := range manifest.Files {
+		if file.Status != models.FileStatusReady && file.Status != models.FileStatusFailed {
+			return
+		}
+	}
+
+	// Retention starts after uploads settle so slow or very large uploads do
+	// not expire before users get a real chance to open the box.
+	manifest.ExpiresAt = time.Now().UTC().Add(time.Duration(seconds) * time.Second)
+}

lib/boxstore/security.go

@@ -0,0 +1,51 @@
+package boxstore
+
+import (
+	"crypto/sha256"
+	"crypto/subtle"
+	"encoding/hex"
+	"strings"
+	"time"
+
+	"golang.org/x/crypto/bcrypt"
+
+	"warpbox/lib/models"
+)
+
+func IsExpired(manifest models.BoxManifest) bool {
+	return !manifest.ExpiresAt.IsZero() && time.Now().UTC().After(manifest.ExpiresAt)
+}
+
+func IsPasswordProtected(manifest models.BoxManifest) bool {
+	return manifest.PasswordHash != "" && manifest.AuthToken != ""
+}
+
+func VerifyPassword(manifest models.BoxManifest, password string) bool {
+	if !IsPasswordProtected(manifest) {
+		return true
+	}
+
+	expected := manifest.PasswordHash
+	if manifest.PasswordHashAlg == "bcrypt" || strings.HasPrefix(expected, "$2") {
+		return bcrypt.CompareHashAndPassword([]byte(expected), []byte(password)) == nil
+	}
+
+	actual := legacyPasswordHash(manifest.PasswordSalt, password)
+	return subtle.ConstantTimeCompare([]byte(expected), []byte(actual)) == 1
+}
+
+func VerifyAuthToken(manifest models.BoxManifest, token string) bool {
+	if !IsPasswordProtected(manifest) {
+		return true
+	}
+
+	if token == "" {
+		return false
+	}
+
+	return subtle.ConstantTimeCompare([]byte(manifest.AuthToken), []byte(token)) == 1
+}
+func legacyPasswordHash(salt string, password string) string {
+	sum := sha256.Sum256([]byte(salt + ":" + password))
+	return hex.EncodeToString(sum[:])
+}

lib/boxstore/store_test.go

@@ -0,0 +1,206 @@
+package boxstore
+
+import (
+	"archive/zip"
+	"bytes"
+	"os"
+	"path/filepath"
+	"testing"
+	"time"
+
+	"warpbox/lib/models"
+)
+
+func TestStartRetentionWaitsForEveryFileToFinish(t *testing.T) {
+	manifest := models.BoxManifest{
+		RetentionSecs: 10,
+		Files: []models.BoxFile{
+			{ID: "one", Status: models.FileStatusReady},
+			{ID: "two", Status: models.FileStatusWork},
+		},
+	}
+
+	startRetentionIfTerminalUnlocked(&manifest)
+
+	if !manifest.ExpiresAt.IsZero() {
+		t.Fatalf("expected retention to stay unset while a file is still uploading, got %s", manifest.ExpiresAt)
+	}
+}
+
+func TestStartRetentionBeginsWhenEveryFileIsTerminal(t *testing.T) {
+	manifest := models.BoxManifest{
+		RetentionSecs: 10,
+		Files: []models.BoxFile{
+			{ID: "one", Status: models.FileStatusReady},
+			{ID: "two", Status: models.FileStatusFailed},
+		},
+	}
+	before := time.Now().UTC()
+
+	startRetentionIfTerminalUnlocked(&manifest)
+
+	if manifest.ExpiresAt.IsZero() {
+		t.Fatal("expected retention to start once every file is complete or failed")
+	}
+	if manifest.ExpiresAt.Before(before.Add(9 * time.Second)) {
+		t.Fatalf("expected retention to start from completion time, got %s", manifest.ExpiresAt)
+	}
+}
+
+func TestStartRetentionUsesConfiguredOneTimeDownloadExpiry(t *testing.T) {
+	restoreExpiry := OneTimeDownloadExpiry()
+	defer SetOneTimeDownloadExpiry(restoreExpiry)
+	SetOneTimeDownloadExpiry(30)
+
+	manifest := models.BoxManifest{
+		RetentionSecs:   10,
+		OneTimeDownload: true,
+		Files: []models.BoxFile{
+			{ID: "one", Status: models.FileStatusReady},
+			{ID: "two", Status: models.FileStatusReady},
+		},
+	}
+	before := time.Now().UTC()
+
+	startRetentionIfTerminalUnlocked(&manifest)
+
+	if manifest.ExpiresAt.IsZero() {
+		t.Fatal("expected one-time download expiry to start from configured expiry")
+	}
+	if manifest.ExpiresAt.Before(before.Add(29 * time.Second)) {
+		t.Fatalf("expected configured one-time expiry, got %s", manifest.ExpiresAt)
+	}
+	if manifest.ExpiresAt.After(before.Add(31 * time.Second)) {
+		t.Fatalf("expected configured one-time expiry near 30s, got %s", manifest.ExpiresAt)
+	}
+}
+
+func TestStartRetentionSkipsOneTimeDownloadWhenExpiryZero(t *testing.T) {
+	restoreExpiry := OneTimeDownloadExpiry()
+	defer SetOneTimeDownloadExpiry(restoreExpiry)
+	SetOneTimeDownloadExpiry(0)
+
+	manifest := models.BoxManifest{
+		RetentionSecs:   10,
+		OneTimeDownload: true,
+		Files: []models.BoxFile{
+			{ID: "one", Status: models.FileStatusReady},
+		},
+	}
+
+	startRetentionIfTerminalUnlocked(&manifest)
+
+	if !manifest.ExpiresAt.IsZero() {
+		t.Fatalf("expected zero one-time expiry to keep expiry unset, got %s", manifest.ExpiresAt)
+	}
+}
+
+func TestSafeBoxFilePathRejectsTraversal(t *testing.T) {
+	restoreUploadRoot := UploadRoot()
+	defer SetUploadRoot(restoreUploadRoot)
+	SetUploadRoot(t.TempDir())
+
+	boxID := "0123456789abcdef0123456789abcdef"
+	if _, ok := SafeBoxFilePath(boxID, "../outside.txt"); ok {
+		t.Fatal("expected traversal to be rejected")
+	}
+	if _, ok := SafeBoxFilePath("../bad", "file.txt"); ok {
+		t.Fatal("expected invalid box id to be rejected")
+	}
+}
+
+func TestAddFileToZipRejectsUnsafeManifestName(t *testing.T) {
+	restoreUploadRoot := UploadRoot()
+	defer SetUploadRoot(restoreUploadRoot)
+	SetUploadRoot(t.TempDir())
+
+	var buffer bytes.Buffer
+	zipWriter := zip.NewWriter(&buffer)
+	if err := AddFileToZip(zipWriter, "0123456789abcdef0123456789abcdef", "../outside.txt"); err == nil {
+		t.Fatal("expected unsafe zip filename to be rejected")
+	}
+}
+
+func TestListFilesSkipsSymlinks(t *testing.T) {
+	restoreUploadRoot := UploadRoot()
+	defer SetUploadRoot(restoreUploadRoot)
+	SetUploadRoot(t.TempDir())
+
+	boxID := "0123456789abcdef0123456789abcdef"
+	if err := os.MkdirAll(BoxPath(boxID), 0755); err != nil {
+		t.Fatalf("MkdirAll returned error: %v", err)
+	}
+	if err := os.WriteFile(filepath.Join(BoxPath(boxID), "safe.txt"), []byte("safe"), 0644); err != nil {
+		t.Fatalf("WriteFile returned error: %v", err)
+	}
+	if err := os.Symlink(filepath.Join(BoxPath(boxID), "safe.txt"), filepath.Join(BoxPath(boxID), "link.txt")); err != nil {
+		t.Skipf("symlink unavailable: %v", err)
+	}
+
+	files, err := ListFiles(boxID)
+	if err != nil {
+		t.Fatalf("ListFiles returned error: %v", err)
+	}
+	if len(files) != 1 || files[0].Name != "safe.txt" {
+		t.Fatalf("expected only regular file, got %#v", files)
+	}
+}
+
+func TestThumbnailTasksSkipOneTimeDownloadBoxes(t *testing.T) {
+	restoreUploadRoot := UploadRoot()
+	defer SetUploadRoot(restoreUploadRoot)
+	SetUploadRoot(t.TempDir())
+
+	boxID := "0123456789abcdef0123456789abcdef"
+	if err := os.MkdirAll(BoxPath(boxID), 0755); err != nil {
+		t.Fatalf("MkdirAll returned error: %v", err)
+	}
+	if err := WriteManifest(boxID, models.BoxManifest{
+		OneTimeDownload: true,
+		Files: []models.BoxFile{{
+			ID:       "0123456789abcdef",
+			Name:     "image.png",
+			MimeType: "image/png",
+			Status:   models.FileStatusReady,
+		}},
+	}); err != nil {
+		t.Fatalf("WriteManifest returned error: %v", err)
+	}
+
+	if tasks := collectBoxThumbnailTasks(boxID, 10); len(tasks) != 0 {
+		t.Fatalf("expected no thumbnail tasks for one-time box, got %#v", tasks)
+	}
+}
+
+func TestBoxPasswordUsesBcryptAndVerifiesLegacy(t *testing.T) {
+	restoreUploadRoot := UploadRoot()
+	defer SetUploadRoot(restoreUploadRoot)
+	SetUploadRoot(t.TempDir())
+
+	boxID := "0123456789abcdef0123456789abcdef"
+	if err := os.MkdirAll(BoxPath(boxID), 0755); err != nil {
+		t.Fatalf("MkdirAll returned error: %v", err)
+	}
+	if _, err := CreateManifest(boxID, models.CreateBoxRequest{Password: "secret"}); err != nil {
+		t.Fatalf("CreateManifest returned error: %v", err)
+	}
+	manifest, err := ReadManifest(boxID)
+	if err != nil {
+		t.Fatalf("ReadManifest returned error: %v", err)
+	}
+	if manifest.PasswordHashAlg != "bcrypt" {
+		t.Fatalf("expected bcrypt password hash, got %q", manifest.PasswordHashAlg)
+	}
+	if !VerifyPassword(manifest, "secret") {
+		t.Fatal("expected bcrypt password to verify")
+	}
+
+	legacy := models.BoxManifest{
+		PasswordSalt: "salt",
+		PasswordHash: legacyPasswordHash("salt", "secret"),
+		AuthToken:    "token",
+	}
+	if !VerifyPassword(legacy, "secret") {
+		t.Fatal("expected legacy password hash to verify")
+	}
+}

lib/boxstore/summary.go

@@ -0,0 +1,74 @@
+package boxstore
+
+import (
+	"os"
+	"sort"
+
+	"warpbox/lib/helpers"
+	"warpbox/lib/models"
+)
+
+func ListBoxSummaries() ([]models.BoxSummary, error) {
+	entries, err := os.ReadDir(uploadRoot)
+	if err != nil {
+		if os.IsNotExist(err) {
+			return nil, nil
+		}
+		return nil, err
+	}
+
+	summaries := make([]models.BoxSummary, 0, len(entries))
+	for _, entry := range entries {
+		if !entry.IsDir() || !ValidBoxID(entry.Name()) {
+			continue
+		}
+
+		summary, err := BoxSummary(entry.Name())
+		if err != nil {
+			continue
+		}
+		summaries = append(summaries, summary)
+	}
+
+	sort.Slice(summaries, func(i int, j int) bool {
+		return summaries[i].CreatedAt.After(summaries[j].CreatedAt)
+	})
+	return summaries, nil
+}
+
+func BoxSummary(boxID string) (models.BoxSummary, error) {
+	files, err := ListFiles(boxID)
+	if err != nil {
+		return models.BoxSummary{}, err
+	}
+
+	var manifest models.BoxManifest
+	hasManifest := false
+	if readManifest, err := ReadManifest(boxID); err == nil {
+		manifest = readManifest
+		hasManifest = true
+	}
+
+	totalSize := int64(0)
+	for _, file := range files {
+		totalSize += file.Size
+	}
+
+	summary := models.BoxSummary{
+		ID:             boxID,
+		FileCount:      len(files),
+		TotalSize:      totalSize,
+		TotalSizeLabel: helpers.FormatBytes(totalSize),
+	}
+	if hasManifest {
+		summary.CreatedAt = manifest.CreatedAt
+		summary.ExpiresAt = manifest.ExpiresAt
+		summary.Expired = IsExpired(manifest)
+		summary.OneTimeDownload = manifest.OneTimeDownload
+		summary.PasswordProtected = IsPasswordProtected(manifest)
+	} else if info, err := os.Stat(BoxPath(boxID)); err == nil {
+		summary.CreatedAt = info.ModTime().UTC()
+	}
+
+	return summary, nil
+}

lib/boxstore/thumbnails.go

@@ -0,0 +1,267 @@
+package boxstore
+
+import (
+	"image"
+	"image/color"
+	"image/draw"
+	_ "image/gif"
+	"image/jpeg"
+	_ "image/png"
+	"net/url"
+	"os"
+	"path/filepath"
+	"strings"
+	"time"
+
+	"warpbox/lib/helpers"
+	"warpbox/lib/models"
+)
+
+const (
+	thumbnailDir     = ".thumbnails"
+	thumbnailMaxSize = 160
+)
+
+type thumbnailTask struct {
+	BoxID  string
+	FileID string
+	Name   string
+}
+
+func StartThumbnailWorker(batchSize int, interval time.Duration) {
+	if batchSize < 1 {
+		batchSize = 10
+	}
+
+	if interval <= 0 {
+		interval = 30 * time.Second
+	}
+
+	go func() {
+		for {
+			ProcessThumbnailBatch(batchSize)
+			time.Sleep(interval)
+		}
+	}()
+}
+
+func ProcessThumbnailBatch(batchSize int) int {
+	tasks := collectThumbnailTasks(batchSize)
+	for _, task := range tasks {
+		if err := generateThumbnail(task); err != nil {
+			markThumbnailFailed(task.BoxID, task.FileID)
+			continue
+		}
+	}
+
+	return len(tasks)
+}
+
+func ThumbnailFilePath(boxID string, fileID string) (string, bool) {
+	if !helpers.ValidLowerHexID(fileID, 16) {
+		return "", false
+	}
+
+	return helpers.SafeChildPath(filepath.Join(BoxPath(boxID), thumbnailDir), fileID+".jpg")
+}
+
+func collectThumbnailTasks(batchSize int) []thumbnailTask {
+	entries, err := os.ReadDir(uploadRoot)
+	if err != nil {
+		return nil
+	}
+
+	tasks := make([]thumbnailTask, 0, batchSize)
+	for _, entry := range entries {
+		if !entry.IsDir() || !ValidBoxID(entry.Name()) {
+			continue
+		}
+
+		tasks = append(tasks, collectBoxThumbnailTasks(entry.Name(), batchSize-len(tasks))...)
+		if len(tasks) >= batchSize {
+			return tasks
+		}
+	}
+
+	return tasks
+}
+
+func collectBoxThumbnailTasks(boxID string, remaining int) []thumbnailTask {
+	if remaining <= 0 {
+		return nil
+	}
+
+	manifestMu.Lock()
+	defer manifestMu.Unlock()
+
+	manifest, err := readManifestUnlocked(boxID)
+	if err != nil || IsExpired(manifest) || manifest.OneTimeDownload {
+		return nil
+	}
+
+	tasks := make([]thumbnailTask, 0, remaining)
+	changed := false
+	for index, file := range manifest.Files {
+		if len(tasks) >= remaining {
+			break
+		}
+
+		if file.Status != models.FileStatusReady || file.ThumbnailPath != nil || file.ThumbnailStatus != "" {
+			continue
+		}
+
+		if !canGenerateThumbnail(file) {
+			manifest.Files[index].ThumbnailStatus = models.ThumbnailStatusUnsupported
+			changed = true
+			continue
+		}
+
+		tasks = append(tasks, thumbnailTask{
+			BoxID:  boxID,
+			FileID: file.ID,
+			Name:   file.Name,
+		})
+	}
+
+	if changed {
+		writeManifestUnlocked(boxID, manifest)
+	}
+
+	return tasks
+}
+
+func canGenerateThumbnail(file models.BoxFile) bool {
+	if strings.HasPrefix(file.MimeType, "image/") {
+		return true
+	}
+
+	extension := strings.ToLower(filepath.Ext(file.Name))
+	return extension == ".jpg" || extension == ".jpeg" || extension == ".png" || extension == ".gif"
+}
+
+func generateThumbnail(task thumbnailTask) error {
+	sourcePath, ok := SafeBoxFilePath(task.BoxID, task.Name)
+	if !ok {
+		return os.ErrInvalid
+	}
+	if err := ensureRegularFile(sourcePath); err != nil {
+		return err
+	}
+
+	source, err := os.Open(sourcePath)
+	if err != nil {
+		return err
+	}
+	defer source.Close()
+
+	src, _, err := image.Decode(source)
+	if err != nil {
+		return err
+	}
+
+	thumb := resizeImage(src, thumbnailMaxSize)
+	if err := os.MkdirAll(filepath.Join(BoxPath(task.BoxID), thumbnailDir), 0755); err != nil {
+		return err
+	}
+
+	path, ok := ThumbnailFilePath(task.BoxID, task.FileID)
+	if !ok {
+		return os.ErrInvalid
+	}
+
+	target, tempPath, err := createTempSibling(path)
+	if err != nil {
+		return err
+	}
+	committed := false
+	defer func() {
+		target.Close()
+		if !committed {
+			os.Remove(tempPath)
+		}
+	}()
+
+	if err := jpeg.Encode(target, thumb, &jpeg.Options{Quality: 82}); err != nil {
+		return err
+	}
+	if err := target.Close(); err != nil {
+		return err
+	}
+	if err := os.Rename(tempPath, path); err != nil {
+		return err
+	}
+	committed = true
+
+	return markThumbnailReady(task.BoxID, task.FileID)
+}
+
+func resizeImage(src image.Image, maxSize int) image.Image {
+	bounds := src.Bounds()
+	width := bounds.Dx()
+	height := bounds.Dy()
+	if width <= 0 || height <= 0 {
+		return src
+	}
+
+	targetWidth := width
+	targetHeight := height
+	if width > maxSize || height > maxSize {
+		if width >= height {
+			targetWidth = maxSize
+			targetHeight = height * maxSize / width
+		} else {
+			targetHeight = maxSize
+			targetWidth = width * maxSize / height
+		}
+	}
+
+	if targetWidth < 1 {
+		targetWidth = 1
+	}
+	if targetHeight < 1 {
+		targetHeight = 1
+	}
+
+	dst := image.NewRGBA(image.Rect(0, 0, targetWidth, targetHeight))
+	draw.Draw(dst, dst.Bounds(), image.NewUniform(color.White), image.Point{}, draw.Src)
+	for y := 0; y < targetHeight; y++ {
+		for x := 0; x < targetWidth; x++ {
+			srcX := bounds.Min.X + x*width/targetWidth
+			srcY := bounds.Min.Y + y*height/targetHeight
+			dst.Set(x, y, src.At(srcX, srcY))
+		}
+	}
+
+	return dst
+}
+
+func markThumbnailReady(boxID string, fileID string) error {
+	path := "/box/" + boxID + "/thumbnails/" + url.PathEscape(fileID)
+	return updateThumbnailState(boxID, fileID, &path, models.ThumbnailStatusReady)
+}
+
+func markThumbnailFailed(boxID string, fileID string) {
+	updateThumbnailState(boxID, fileID, nil, models.ThumbnailStatusFailed)
+}
+
+func updateThumbnailState(boxID string, fileID string, thumbnailPath *string, status string) error {
+	manifestMu.Lock()
+	defer manifestMu.Unlock()
+
+	manifest, err := readManifestUnlocked(boxID)
+	if err != nil {
+		return err
+	}
+
+	for index, file := range manifest.Files {
+		if file.ID != fileID {
+			continue
+		}
+
+		manifest.Files[index].ThumbnailPath = thumbnailPath
+		manifest.Files[index].ThumbnailStatus = status
+		return writeManifestUnlocked(boxID, manifest)
+	}
+
+	return os.ErrNotExist
+}

lib/boxstore/zip.go

@@ -0,0 +1,50 @@
+package boxstore
+
+import (
+	"archive/zip"
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+	"strings"
+)
+
+func AddFileToZip(zipWriter *zip.Writer, boxID string, filename string) error {
+	path, ok := SafeBoxFilePath(boxID, filename)
+	if !ok {
+		return fmt.Errorf("Invalid file")
+	}
+	if err := ensureRegularFile(path); err != nil {
+		return err
+	}
+	zipName, ok := safeZipEntryName(filename)
+	if !ok {
+		return fmt.Errorf("Invalid zip entry")
+	}
+
+	source, err := os.Open(path)
+	if err != nil {
+		return err
+	}
+	defer source.Close()
+
+	destination, err := zipWriter.Create(zipName)
+	if err != nil {
+		return err
+	}
+
+	_, err = io.Copy(destination, source)
+	return err
+}
+func safeZipEntryName(filename string) (string, bool) {
+	filename = strings.TrimSpace(filename)
+	if filename == "" || filepath.IsAbs(filename) {
+		return "", false
+	}
+
+	cleaned := filepath.ToSlash(filepath.Clean(filename))
+	if cleaned == "." || cleaned == ".." || strings.HasPrefix(cleaned, "../") || strings.HasPrefix(cleaned, "/") {
+		return "", false
+	}
+	return cleaned, true
+}

lib/config/config_test.go

@@ -0,0 +1,210 @@
+package config
+
+import (
+	"path/filepath"
+	"testing"
+)
+
+func TestDefaults(t *testing.T) {
+	clearConfigEnv(t)
+
+	cfg, err := Load()
+	if err != nil {
+		t.Fatalf("Load returned error: %v", err)
+	}
+
+	if cfg.UploadsDir != filepath.Join("data", "uploads") {
+		t.Fatalf("unexpected uploads dir: %s", cfg.UploadsDir)
+	}
+	if cfg.DBDir != filepath.Join("data", "db") {
+		t.Fatalf("unexpected db dir: %s", cfg.DBDir)
+	}
+	if !cfg.GuestUploadsEnabled || !cfg.APIEnabled || !cfg.ZipDownloadsEnabled || !cfg.OneTimeDownloadsEnabled {
+		t.Fatal("expected default guest/API/download toggles to be enabled")
+	}
+	if cfg.AdminUsername != "admin" {
+		t.Fatalf("unexpected admin username: %s", cfg.AdminUsername)
+	}
+	if cfg.AdminPassword != "" {
+		t.Fatal("expected default admin password to be empty")
+	}
+	if !cfg.BoxOwnerEditEnabled || !cfg.BoxOwnerRefreshEnabled || !cfg.BoxOwnerPasswordEditEnabled {
+		t.Fatal("expected box owner policy defaults to be enabled")
+	}
+	if cfg.BoxOwnerMaxRefreshCount != 3 || cfg.BoxOwnerMaxRefreshAmountSeconds != 86400 || cfg.BoxOwnerMaxTotalExpirySeconds != 604800 {
+		t.Fatalf("unexpected box owner policy defaults: %#v", cfg)
+	}
+}
+
+func TestEnvironmentOverrides(t *testing.T) {
+	clearConfigEnv(t)
+	t.Setenv("WARPBOX_DATA_DIR", "/tmp/warpbox-test")
+	t.Setenv("WARPBOX_GUEST_UPLOADS_ENABLED", "false")
+	t.Setenv("WARPBOX_API_ENABLED", "false")
+	t.Setenv("WARPBOX_GLOBAL_MAX_FILE_SIZE_BYTES", "100")
+	t.Setenv("WARPBOX_BOX_POLL_INTERVAL_MS", "2000")
+	t.Setenv("WARPBOX_ADMIN_USERNAME", "root")
+	t.Setenv("WARPBOX_ONE_TIME_DOWNLOAD_RETRY_ON_FAILURE", "true")
+	t.Setenv("WARPBOX_BOX_OWNER_MAX_REFRESH_COUNT", "5")
+	t.Setenv("WARPBOX_BOX_OWNER_PASSWORD_EDIT_ENABLED", "false")
+
+	cfg, err := Load()
+	if err != nil {
+		t.Fatalf("Load returned error: %v", err)
+	}
+
+	if cfg.UploadsDir != filepath.Join("/tmp/warpbox-test", "uploads") {
+		t.Fatalf("unexpected uploads dir: %s", cfg.UploadsDir)
+	}
+	if cfg.GuestUploadsEnabled || cfg.APIEnabled {
+		t.Fatal("expected boolean environment overrides to be applied")
+	}
+	if cfg.GlobalMaxFileSizeBytes != 100 {
+		t.Fatalf("unexpected global max file size: %d", cfg.GlobalMaxFileSizeBytes)
+	}
+	if cfg.BoxPollIntervalMS != 2000 {
+		t.Fatalf("unexpected poll interval: %d", cfg.BoxPollIntervalMS)
+	}
+	if cfg.AdminUsername != "root" {
+		t.Fatalf("unexpected admin username: %s", cfg.AdminUsername)
+	}
+	if !cfg.OneTimeDownloadRetryOnFailure {
+		t.Fatal("expected one-time retry-on-failure env override to be applied")
+	}
+	if cfg.BoxOwnerMaxRefreshCount != 5 || cfg.BoxOwnerPasswordEditEnabled {
+		t.Fatal("expected box owner policy env overrides to be applied")
+	}
+	if cfg.Source(SettingAPIEnabled) != SourceEnv {
+		t.Fatalf("expected API setting source to be env, got %s", cfg.Source(SettingAPIEnabled))
+	}
+}
+
+func TestMegabyteSizeEnvironmentOverrides(t *testing.T) {
+	clearConfigEnv(t)
+	t.Setenv("WARPBOX_GLOBAL_MAX_FILE_SIZE_MB", "2048")
+	t.Setenv("WARPBOX_GLOBAL_MAX_BOX_SIZE_MB", "4096")
+
+	cfg, err := Load()
+	if err != nil {
+		t.Fatalf("Load returned error: %v", err)
+	}
+
+	if cfg.GlobalMaxFileSizeBytes != 2048*1024*1024 {
+		t.Fatalf("unexpected global max file size: %d", cfg.GlobalMaxFileSizeBytes)
+	}
+	if cfg.GlobalMaxBoxSizeBytes != 4096*1024*1024 {
+		t.Fatalf("unexpected global max box size: %d", cfg.GlobalMaxBoxSizeBytes)
+	}
+}
+
+func TestByteSizeEnvironmentOverridesTakePrecedence(t *testing.T) {
+	clearConfigEnv(t)
+	t.Setenv("WARPBOX_GLOBAL_MAX_FILE_SIZE_MB", "2048")
+	t.Setenv("WARPBOX_GLOBAL_MAX_FILE_SIZE_BYTES", "100")
+
+	cfg, err := Load()
+	if err != nil {
+		t.Fatalf("Load returned error: %v", err)
+	}
+
+	if cfg.GlobalMaxFileSizeBytes != 100 {
+		t.Fatalf("unexpected global max file size: %d", cfg.GlobalMaxFileSizeBytes)
+	}
+}
+
+func TestInvalidEnvironmentValues(t *testing.T) {
+	clearConfigEnv(t)
+	t.Setenv("WARPBOX_SESSION_TTL_SECONDS", "1")
+	if _, err := Load(); err == nil {
+		t.Fatal("expected invalid session ttl to fail")
+	}
+
+	clearConfigEnv(t)
+	t.Setenv("WARPBOX_GUEST_UPLOADS_ENABLED", "maybe")
+	if _, err := Load(); err == nil {
+		t.Fatal("expected invalid boolean to fail")
+	}
+}
+
+func TestSettingsOverridePrecedence(t *testing.T) {
+	clearConfigEnv(t)
+	t.Setenv("WARPBOX_API_ENABLED", "true")
+
+	cfg, err := Load()
+	if err != nil {
+		t.Fatalf("Load returned error: %v", err)
+	}
+	if err := cfg.ApplyOverrides(map[string]string{SettingAPIEnabled: "false"}); err != nil {
+		t.Fatalf("ApplyOverrides returned error: %v", err)
+	}
+
+	if cfg.APIEnabled {
+		t.Fatal("expected DB override to beat environment value")
+	}
+	if cfg.Source(SettingAPIEnabled) != SourceDB {
+		t.Fatalf("expected DB source, got %s", cfg.Source(SettingAPIEnabled))
+	}
+}
+
+func TestSettingsOverrideValidation(t *testing.T) {
+	clearConfigEnv(t)
+
+	cfg, err := Load()
+	if err != nil {
+		t.Fatalf("Load returned error: %v", err)
+	}
+	if err := cfg.ApplyOverride(SettingDefaultGuestExpirySecs, "-1"); err == nil {
+		t.Fatal("expected negative expiry override to fail")
+	}
+	if err := cfg.ApplyOverride(SettingGlobalMaxFileSizeBytes, "1"); err == nil {
+		t.Fatal("expected hard limit override to fail")
+	}
+	if err := cfg.ApplyOverride(SettingBoxOwnerMaxRefreshCount, "2"); err != nil {
+		t.Fatalf("expected box owner policy override to pass: %v", err)
+	}
+	if cfg.BoxOwnerMaxRefreshCount != 2 {
+		t.Fatalf("expected box owner policy override to apply, got %d", cfg.BoxOwnerMaxRefreshCount)
+	}
+}
+
+func clearConfigEnv(t *testing.T) {
+	t.Helper()
+	for _, name := range []string{
+		"WARPBOX_DATA_DIR",
+		"WARPBOX_ADMIN_PASSWORD",
+		"WARPBOX_ADMIN_USERNAME",
+		"WARPBOX_ADMIN_EMAIL",
+		"WARPBOX_ADMIN_ENABLED",
+		"WARPBOX_ALLOW_ADMIN_SETTINGS_OVERRIDE",
+		"WARPBOX_ADMIN_COOKIE_SECURE",
+		"WARPBOX_GUEST_UPLOADS_ENABLED",
+		"WARPBOX_API_ENABLED",
+		"WARPBOX_ZIP_DOWNLOADS_ENABLED",
+		"WARPBOX_ONE_TIME_DOWNLOADS_ENABLED",
+		"WARPBOX_ONE_TIME_DOWNLOAD_RETRY_ON_FAILURE",
+		"WARPBOX_RENEW_ON_ACCESS_ENABLED",
+		"WARPBOX_RENEW_ON_DOWNLOAD_ENABLED",
+		"WARPBOX_DEFAULT_GUEST_EXPIRY_SECONDS",
+		"WARPBOX_MAX_GUEST_EXPIRY_SECONDS",
+		"WARPBOX_GLOBAL_MAX_FILE_SIZE_MB",
+		"WARPBOX_GLOBAL_MAX_FILE_SIZE_BYTES",
+		"WARPBOX_GLOBAL_MAX_BOX_SIZE_MB",
+		"WARPBOX_GLOBAL_MAX_BOX_SIZE_BYTES",
+		"WARPBOX_DEFAULT_USER_MAX_FILE_SIZE_MB",
+		"WARPBOX_DEFAULT_USER_MAX_FILE_SIZE_BYTES",
+		"WARPBOX_DEFAULT_USER_MAX_BOX_SIZE_MB",
+		"WARPBOX_DEFAULT_USER_MAX_BOX_SIZE_BYTES",
+		"WARPBOX_SESSION_TTL_SECONDS",
+		"WARPBOX_BOX_POLL_INTERVAL_MS",
+		"WARPBOX_THUMBNAIL_BATCH_SIZE",
+		"WARPBOX_THUMBNAIL_INTERVAL_SECONDS",
+		"WARPBOX_BOX_OWNER_EDIT_ENABLED",
+		"WARPBOX_BOX_OWNER_REFRESH_ENABLED",
+		"WARPBOX_BOX_OWNER_MAX_REFRESH_COUNT",
+		"WARPBOX_BOX_OWNER_MAX_REFRESH_AMOUNT_SECONDS",
+		"WARPBOX_BOX_OWNER_MAX_TOTAL_EXPIRY_SECONDS",
+		"WARPBOX_BOX_OWNER_PASSWORD_EDIT_ENABLED",
+	} {
+		t.Setenv(name, "")
+	}
+}

lib/config/definitions.go

@@ -0,0 +1,79 @@
+package config
+
+var Definitions = []SettingDefinition{
+	{Key: SettingDataDir, EnvName: "WARPBOX_DATA_DIR", Label: "Data directory", Type: SettingTypeText, Editable: false, HardLimit: true},
+	{Key: SettingGuestUploadsEnabled, EnvName: "WARPBOX_GUEST_UPLOADS_ENABLED", Label: "Guest uploads enabled", Type: SettingTypeBool, Editable: true},
+	{Key: SettingAPIEnabled, EnvName: "WARPBOX_API_ENABLED", Label: "API enabled", Type: SettingTypeBool, Editable: true},
+	{Key: SettingZipDownloadsEnabled, EnvName: "WARPBOX_ZIP_DOWNLOADS_ENABLED", Label: "ZIP downloads enabled", Type: SettingTypeBool, Editable: true},
+	{Key: SettingOneTimeDownloadsEnabled, EnvName: "WARPBOX_ONE_TIME_DOWNLOADS_ENABLED", Label: "One-time downloads enabled", Type: SettingTypeBool, Editable: true},
+	{Key: SettingOneTimeDownloadExpirySecs, EnvName: "WARPBOX_ONE_TIME_DOWNLOAD_EXPIRY_SECONDS", Label: "One-time download expiry seconds", Type: SettingTypeInt64, Editable: true, Minimum: 0},
+	{Key: SettingOneTimeDownloadRetryFail, EnvName: "WARPBOX_ONE_TIME_DOWNLOAD_RETRY_ON_FAILURE", Label: "One-time download retry on failure", Type: SettingTypeBool, Editable: false},
+	{Key: SettingRenewOnAccessEnabled, EnvName: "WARPBOX_RENEW_ON_ACCESS_ENABLED", Label: "Renew on access enabled", Type: SettingTypeBool, Editable: true},
+	{Key: SettingRenewOnDownloadEnabled, EnvName: "WARPBOX_RENEW_ON_DOWNLOAD_ENABLED", Label: "Renew on download enabled", Type: SettingTypeBool, Editable: true},
+	{Key: SettingDefaultGuestExpirySecs, EnvName: "WARPBOX_DEFAULT_GUEST_EXPIRY_SECONDS", Label: "Default guest expiry seconds", Type: SettingTypeInt64, Editable: true, Minimum: 0},
+	{Key: SettingMaxGuestExpirySecs, EnvName: "WARPBOX_MAX_GUEST_EXPIRY_SECONDS", Label: "Max guest expiry seconds", Type: SettingTypeInt64, Editable: true, Minimum: 0},
+	{Key: SettingGlobalMaxFileSizeBytes, EnvName: "WARPBOX_GLOBAL_MAX_FILE_SIZE_BYTES", Label: "Global max file size bytes", Type: SettingTypeInt64, Editable: false, HardLimit: true, Minimum: 0},
+	{Key: SettingGlobalMaxBoxSizeBytes, EnvName: "WARPBOX_GLOBAL_MAX_BOX_SIZE_BYTES", Label: "Global max box size bytes", Type: SettingTypeInt64, Editable: false, HardLimit: true, Minimum: 0},
+	{Key: SettingDefaultUserMaxFileBytes, EnvName: "WARPBOX_DEFAULT_USER_MAX_FILE_SIZE_BYTES", Label: "Default user max file size bytes", Type: SettingTypeInt64, Editable: true, Minimum: 0},
+	{Key: SettingDefaultUserMaxBoxBytes, EnvName: "WARPBOX_DEFAULT_USER_MAX_BOX_SIZE_BYTES", Label: "Default user max box size bytes", Type: SettingTypeInt64, Editable: true, Minimum: 0},
+	{Key: SettingSessionTTLSeconds, EnvName: "WARPBOX_SESSION_TTL_SECONDS", Label: "Session TTL seconds", Type: SettingTypeInt64, Editable: true, Minimum: 60},
+	{Key: SettingBoxPollIntervalMS, EnvName: "WARPBOX_BOX_POLL_INTERVAL_MS", Label: "Box poll interval milliseconds", Type: SettingTypeInt, Editable: true, Minimum: 1000},
+	{Key: SettingThumbnailBatchSize, EnvName: "WARPBOX_THUMBNAIL_BATCH_SIZE", Label: "Thumbnail batch size", Type: SettingTypeInt, Editable: true, Minimum: 1},
+	{Key: SettingThumbnailIntervalSeconds, EnvName: "WARPBOX_THUMBNAIL_INTERVAL_SECONDS", Label: "Thumbnail interval seconds", Type: SettingTypeInt, Editable: true, Minimum: 1},
+	{Key: SettingBoxOwnerEditEnabled, EnvName: "WARPBOX_BOX_OWNER_EDIT_ENABLED", Label: "Box owner edit enabled", Type: SettingTypeBool, Editable: true},
+	{Key: SettingBoxOwnerRefreshEnabled, EnvName: "WARPBOX_BOX_OWNER_REFRESH_ENABLED", Label: "Box owner refresh enabled", Type: SettingTypeBool, Editable: true},
+	{Key: SettingBoxOwnerMaxRefreshCount, EnvName: "WARPBOX_BOX_OWNER_MAX_REFRESH_COUNT", Label: "Box owner max refresh count", Type: SettingTypeInt, Editable: true, Minimum: 0},
+	{Key: SettingBoxOwnerMaxRefreshAmount, EnvName: "WARPBOX_BOX_OWNER_MAX_REFRESH_AMOUNT_SECONDS", Label: "Box owner max refresh amount seconds", Type: SettingTypeInt64, Editable: true, Minimum: 0},
+	{Key: SettingBoxOwnerMaxTotalExpiry, EnvName: "WARPBOX_BOX_OWNER_MAX_TOTAL_EXPIRY_SECONDS", Label: "Box owner max total expiry seconds", Type: SettingTypeInt64, Editable: true, Minimum: 0},
+	{Key: SettingBoxOwnerPasswordEdit, EnvName: "WARPBOX_BOX_OWNER_PASSWORD_EDIT_ENABLED", Label: "Box owner password edit enabled", Type: SettingTypeBool, Editable: true},
+}
+
+func (cfg *Config) SettingRows() []SettingRow {
+	rows := make([]SettingRow, 0, len(Definitions))
+	for _, def := range Definitions {
+		rows = append(rows, SettingRow{
+			Definition: def,
+			Value:      cfg.values[def.Key],
+			Source:     cfg.sourceFor(def.Key),
+		})
+	}
+	return rows
+}
+
+func (cfg *Config) Source(key string) Source {
+	return cfg.sourceFor(key)
+}
+
+func (cfg *Config) SettingValue(key string) string {
+	return cfg.values[key]
+}
+
+func (cfg *Config) AdminLoginEnabled(hasAdminUser bool) bool {
+	switch cfg.AdminEnabled {
+	case AdminEnabledFalse:
+		return false
+	case AdminEnabledTrue:
+		return hasAdminUser
+	default:
+		return hasAdminUser
+	}
+}
+
+func Definition(key string) (SettingDefinition, bool) {
+	for _, def := range Definitions {
+		if def.Key == key {
+			return def, true
+		}
+	}
+	return SettingDefinition{}, false
+}
+
+func EditableDefinitions() []SettingDefinition {
+	defs := make([]SettingDefinition, 0, len(Definitions))
+	for _, def := range Definitions {
+		if def.Editable && !def.HardLimit {
+			defs = append(defs, def)
+		}
+	}
+	return defs
+}

lib/config/load.go

@@ -0,0 +1,280 @@
+package config
+
+import (
+	"fmt"
+	"math"
+	"os"
+	"path/filepath"
+	"strconv"
+	"strings"
+)
+
+func Load() (*Config, error) {
+	cfg := &Config{
+		DataDir:                         "./data",
+		AdminUsername:                   "admin",
+		AdminEnabled:                    AdminEnabledAuto,
+		AllowAdminSettingsOverride:      true,
+		GuestUploadsEnabled:             true,
+		APIEnabled:                      true,
+		ZipDownloadsEnabled:             true,
+		OneTimeDownloadsEnabled:         true,
+		OneTimeDownloadExpirySeconds:    7 * 24 * 60 * 60,
+		OneTimeDownloadRetryOnFailure:   false,
+		DefaultGuestExpirySeconds:       10,
+		MaxGuestExpirySeconds:           48 * 60 * 60,
+		SessionTTLSeconds:               24 * 60 * 60,
+		BoxPollIntervalMS:               5000,
+		ThumbnailBatchSize:              10,
+		ThumbnailIntervalSeconds:        30,
+		BoxOwnerEditEnabled:             true,
+		BoxOwnerRefreshEnabled:          true,
+		BoxOwnerMaxRefreshCount:         3,
+		BoxOwnerMaxRefreshAmountSeconds: 24 * 60 * 60,
+		BoxOwnerMaxTotalExpirySeconds:   7 * 24 * 60 * 60,
+		BoxOwnerPasswordEditEnabled:     true,
+		sources:                         make(map[string]Source),
+		values:                          make(map[string]string),
+	}
+
+	// Config precedence: defaults -> env -> overrides.
+	// Overrides are applied after Load by the server once the metadata store opens.
+	cfg.captureDefaults()
+
+	if err := cfg.applyStringEnv(SettingDataDir, "WARPBOX_DATA_DIR", &cfg.DataDir); err != nil {
+		return nil, err
+	}
+	if err := cfg.applyStringEnv("", "WARPBOX_ADMIN_PASSWORD", &cfg.AdminPassword); err != nil {
+		return nil, err
+	}
+	if err := cfg.applyStringEnv("", "WARPBOX_ADMIN_USERNAME", &cfg.AdminUsername); err != nil {
+		return nil, err
+	}
+	if err := cfg.applyStringEnv("", "WARPBOX_ADMIN_EMAIL", &cfg.AdminEmail); err != nil {
+		return nil, err
+	}
+	if raw := strings.TrimSpace(os.Getenv("WARPBOX_ADMIN_ENABLED")); raw != "" {
+		mode := AdminEnabledMode(strings.ToLower(raw))
+		if mode != AdminEnabledAuto && mode != AdminEnabledTrue && mode != AdminEnabledFalse {
+			return nil, fmt.Errorf("WARPBOX_ADMIN_ENABLED must be auto, true, or false")
+		}
+		cfg.AdminEnabled = mode
+	}
+	if err := cfg.applyBoolEnv("", "WARPBOX_ALLOW_ADMIN_SETTINGS_OVERRIDE", &cfg.AllowAdminSettingsOverride); err != nil {
+		return nil, err
+	}
+	if err := cfg.applyBoolEnv("", "WARPBOX_ADMIN_COOKIE_SECURE", &cfg.AdminCookieSecure); err != nil {
+		return nil, err
+	}
+
+	envBools := []struct {
+		key    string
+		name   string
+		target *bool
+	}{
+		{SettingGuestUploadsEnabled, "WARPBOX_GUEST_UPLOADS_ENABLED", &cfg.GuestUploadsEnabled},
+		{SettingAPIEnabled, "WARPBOX_API_ENABLED", &cfg.APIEnabled},
+		{SettingZipDownloadsEnabled, "WARPBOX_ZIP_DOWNLOADS_ENABLED", &cfg.ZipDownloadsEnabled},
+		{SettingOneTimeDownloadsEnabled, "WARPBOX_ONE_TIME_DOWNLOADS_ENABLED", &cfg.OneTimeDownloadsEnabled},
+		{SettingOneTimeDownloadRetryFail, "WARPBOX_ONE_TIME_DOWNLOAD_RETRY_ON_FAILURE", &cfg.OneTimeDownloadRetryOnFailure},
+		{SettingRenewOnAccessEnabled, "WARPBOX_RENEW_ON_ACCESS_ENABLED", &cfg.RenewOnAccessEnabled},
+		{SettingRenewOnDownloadEnabled, "WARPBOX_RENEW_ON_DOWNLOAD_ENABLED", &cfg.RenewOnDownloadEnabled},
+		{SettingBoxOwnerEditEnabled, "WARPBOX_BOX_OWNER_EDIT_ENABLED", &cfg.BoxOwnerEditEnabled},
+		{SettingBoxOwnerRefreshEnabled, "WARPBOX_BOX_OWNER_REFRESH_ENABLED", &cfg.BoxOwnerRefreshEnabled},
+		{SettingBoxOwnerPasswordEdit, "WARPBOX_BOX_OWNER_PASSWORD_EDIT_ENABLED", &cfg.BoxOwnerPasswordEditEnabled},
+	}
+	for _, item := range envBools {
+		if err := cfg.applyBoolEnv(item.key, item.name, item.target); err != nil {
+			return nil, err
+		}
+	}
+
+	envInt64s := []struct {
+		key    string
+		name   string
+		min    int64
+		target *int64
+	}{
+		{SettingDefaultGuestExpirySecs, "WARPBOX_DEFAULT_GUEST_EXPIRY_SECONDS", 0, &cfg.DefaultGuestExpirySeconds},
+		{SettingMaxGuestExpirySecs, "WARPBOX_MAX_GUEST_EXPIRY_SECONDS", 0, &cfg.MaxGuestExpirySeconds},
+		{SettingOneTimeDownloadExpirySecs, "WARPBOX_ONE_TIME_DOWNLOAD_EXPIRY_SECONDS", 0, &cfg.OneTimeDownloadExpirySeconds},
+		{SettingSessionTTLSeconds, "WARPBOX_SESSION_TTL_SECONDS", 60, &cfg.SessionTTLSeconds},
+		{SettingBoxOwnerMaxRefreshAmount, "WARPBOX_BOX_OWNER_MAX_REFRESH_AMOUNT_SECONDS", 0, &cfg.BoxOwnerMaxRefreshAmountSeconds},
+		{SettingBoxOwnerMaxTotalExpiry, "WARPBOX_BOX_OWNER_MAX_TOTAL_EXPIRY_SECONDS", 0, &cfg.BoxOwnerMaxTotalExpirySeconds},
+	}
+	for _, item := range envInt64s {
+		if err := cfg.applyInt64Env(item.key, item.name, item.min, item.target); err != nil {
+			return nil, err
+		}
+	}
+	sizeEnvVars := []struct {
+		key       string
+		mbName    string
+		bytesName string
+		target    *int64
+	}{
+		{SettingGlobalMaxFileSizeBytes, "WARPBOX_GLOBAL_MAX_FILE_SIZE_MB", "WARPBOX_GLOBAL_MAX_FILE_SIZE_BYTES", &cfg.GlobalMaxFileSizeBytes},
+		{SettingGlobalMaxBoxSizeBytes, "WARPBOX_GLOBAL_MAX_BOX_SIZE_MB", "WARPBOX_GLOBAL_MAX_BOX_SIZE_BYTES", &cfg.GlobalMaxBoxSizeBytes},
+		{SettingDefaultUserMaxFileBytes, "WARPBOX_DEFAULT_USER_MAX_FILE_SIZE_MB", "WARPBOX_DEFAULT_USER_MAX_FILE_SIZE_BYTES", &cfg.DefaultUserMaxFileSizeBytes},
+		{SettingDefaultUserMaxBoxBytes, "WARPBOX_DEFAULT_USER_MAX_BOX_SIZE_MB", "WARPBOX_DEFAULT_USER_MAX_BOX_SIZE_BYTES", &cfg.DefaultUserMaxBoxSizeBytes},
+	}
+	for _, item := range sizeEnvVars {
+		if err := cfg.applyMegabytesOrBytesEnv(item.key, item.mbName, item.bytesName, 0, item.target); err != nil {
+			return nil, err
+		}
+	}
+
+	envInts := []struct {
+		key    string
+		name   string
+		min    int
+		target *int
+	}{
+		{SettingBoxPollIntervalMS, "WARPBOX_BOX_POLL_INTERVAL_MS", 1000, &cfg.BoxPollIntervalMS},
+		{SettingThumbnailBatchSize, "WARPBOX_THUMBNAIL_BATCH_SIZE", 1, &cfg.ThumbnailBatchSize},
+		{SettingThumbnailIntervalSeconds, "WARPBOX_THUMBNAIL_INTERVAL_SECONDS", 1, &cfg.ThumbnailIntervalSeconds},
+		{SettingBoxOwnerMaxRefreshCount, "WARPBOX_BOX_OWNER_MAX_REFRESH_COUNT", 0, &cfg.BoxOwnerMaxRefreshCount},
+	}
+	for _, item := range envInts {
+		if err := cfg.applyIntEnv(item.key, item.name, item.min, item.target); err != nil {
+			return nil, err
+		}
+	}
+
+	cfg.DataDir = filepath.Clean(cfg.DataDir)
+	if strings.TrimSpace(cfg.DataDir) == "" || cfg.DataDir == "." && strings.TrimSpace(os.Getenv("WARPBOX_DATA_DIR")) == "" {
+		cfg.DataDir = "data"
+	}
+	if cfg.AdminUsername = strings.TrimSpace(cfg.AdminUsername); cfg.AdminUsername == "" {
+		return nil, fmt.Errorf("WARPBOX_ADMIN_USERNAME cannot be empty")
+	}
+	cfg.AdminEmail = strings.TrimSpace(cfg.AdminEmail)
+	cfg.UploadsDir = filepath.Join(cfg.DataDir, "uploads")
+	cfg.DBDir = filepath.Join(cfg.DataDir, "db")
+	cfg.setValue(SettingDataDir, cfg.DataDir, cfg.sourceFor(SettingDataDir))
+	return cfg, nil
+}
+
+func (cfg *Config) EnsureDirectories() error {
+	for _, path := range []string{cfg.DataDir, cfg.UploadsDir, cfg.DBDir} {
+		if err := os.MkdirAll(path, 0755); err != nil {
+			return fmt.Errorf("create %s: %w", path, err)
+		}
+	}
+	return nil
+}
+func (cfg *Config) captureDefaults() {
+	cfg.setValue(SettingDataDir, cfg.DataDir, SourceDefault)
+	cfg.setValue(SettingGuestUploadsEnabled, formatBool(cfg.GuestUploadsEnabled), SourceDefault)
+	cfg.setValue(SettingAPIEnabled, formatBool(cfg.APIEnabled), SourceDefault)
+	cfg.setValue(SettingZipDownloadsEnabled, formatBool(cfg.ZipDownloadsEnabled), SourceDefault)
+	cfg.setValue(SettingOneTimeDownloadsEnabled, formatBool(cfg.OneTimeDownloadsEnabled), SourceDefault)
+	cfg.setValue(SettingOneTimeDownloadExpirySecs, strconv.FormatInt(cfg.OneTimeDownloadExpirySeconds, 10), SourceDefault)
+	cfg.setValue(SettingOneTimeDownloadRetryFail, formatBool(cfg.OneTimeDownloadRetryOnFailure), SourceDefault)
+	cfg.setValue(SettingRenewOnAccessEnabled, formatBool(cfg.RenewOnAccessEnabled), SourceDefault)
+	cfg.setValue(SettingRenewOnDownloadEnabled, formatBool(cfg.RenewOnDownloadEnabled), SourceDefault)
+	cfg.setValue(SettingDefaultGuestExpirySecs, strconv.FormatInt(cfg.DefaultGuestExpirySeconds, 10), SourceDefault)
+	cfg.setValue(SettingMaxGuestExpirySecs, strconv.FormatInt(cfg.MaxGuestExpirySeconds, 10), SourceDefault)
+	cfg.setValue(SettingGlobalMaxFileSizeBytes, strconv.FormatInt(cfg.GlobalMaxFileSizeBytes, 10), SourceDefault)
+	cfg.setValue(SettingGlobalMaxBoxSizeBytes, strconv.FormatInt(cfg.GlobalMaxBoxSizeBytes, 10), SourceDefault)
+	cfg.setValue(SettingDefaultUserMaxFileBytes, strconv.FormatInt(cfg.DefaultUserMaxFileSizeBytes, 10), SourceDefault)
+	cfg.setValue(SettingDefaultUserMaxBoxBytes, strconv.FormatInt(cfg.DefaultUserMaxBoxSizeBytes, 10), SourceDefault)
+	cfg.setValue(SettingSessionTTLSeconds, strconv.FormatInt(cfg.SessionTTLSeconds, 10), SourceDefault)
+	cfg.setValue(SettingBoxPollIntervalMS, strconv.Itoa(cfg.BoxPollIntervalMS), SourceDefault)
+	cfg.setValue(SettingThumbnailBatchSize, strconv.Itoa(cfg.ThumbnailBatchSize), SourceDefault)
+	cfg.setValue(SettingThumbnailIntervalSeconds, strconv.Itoa(cfg.ThumbnailIntervalSeconds), SourceDefault)
+	cfg.setValue(SettingBoxOwnerEditEnabled, formatBool(cfg.BoxOwnerEditEnabled), SourceDefault)
+	cfg.setValue(SettingBoxOwnerRefreshEnabled, formatBool(cfg.BoxOwnerRefreshEnabled), SourceDefault)
+	cfg.setValue(SettingBoxOwnerMaxRefreshCount, strconv.Itoa(cfg.BoxOwnerMaxRefreshCount), SourceDefault)
+	cfg.setValue(SettingBoxOwnerMaxRefreshAmount, strconv.FormatInt(cfg.BoxOwnerMaxRefreshAmountSeconds, 10), SourceDefault)
+	cfg.setValue(SettingBoxOwnerMaxTotalExpiry, strconv.FormatInt(cfg.BoxOwnerMaxTotalExpirySeconds, 10), SourceDefault)
+	cfg.setValue(SettingBoxOwnerPasswordEdit, formatBool(cfg.BoxOwnerPasswordEditEnabled), SourceDefault)
+}
+
+func (cfg *Config) applyStringEnv(key string, name string, target *string) error {
+	raw := os.Getenv(name)
+	if raw == "" {
+		return nil
+	}
+	*target = raw
+	if key != "" {
+		cfg.setValue(key, raw, SourceEnv)
+	}
+	return nil
+}
+
+func (cfg *Config) applyBoolEnv(key string, name string, target *bool) error {
+	raw := strings.TrimSpace(os.Getenv(name))
+	if raw == "" {
+		return nil
+	}
+	parsed, err := parseBool(raw)
+	if err != nil {
+		return fmt.Errorf("%s: %w", name, err)
+	}
+	*target = parsed
+	if key != "" {
+		cfg.setValue(key, formatBool(parsed), SourceEnv)
+	}
+	return nil
+}
+
+func (cfg *Config) applyInt64Env(key string, name string, min int64, target *int64) error {
+	raw := strings.TrimSpace(os.Getenv(name))
+	if raw == "" {
+		return nil
+	}
+	parsed, err := parseInt64(raw, min)
+	if err != nil {
+		return fmt.Errorf("%s: %w", name, err)
+	}
+	*target = parsed
+	if key != "" {
+		cfg.setValue(key, strconv.FormatInt(parsed, 10), SourceEnv)
+	}
+	return nil
+}
+
+func (cfg *Config) applyMegabytesOrBytesEnv(key string, mbName string, bytesName string, min int64, target *int64) error {
+	if rawBytes := strings.TrimSpace(os.Getenv(bytesName)); rawBytes != "" {
+		parsed, err := parseInt64(rawBytes, min)
+		if err != nil {
+			return fmt.Errorf("%s: %w", bytesName, err)
+		}
+		*target = parsed
+		cfg.setValue(key, strconv.FormatInt(parsed, 10), SourceEnv)
+		return nil
+	}
+
+	rawMB := strings.TrimSpace(os.Getenv(mbName))
+	if rawMB == "" {
+		return nil
+	}
+	parsedMB, err := parseInt64(rawMB, min)
+	if err != nil {
+		return fmt.Errorf("%s: %w", mbName, err)
+	}
+	if parsedMB > math.MaxInt64/(1024*1024) {
+		return fmt.Errorf("%s: is too large", mbName)
+	}
+	parsedBytes := parsedMB * 1024 * 1024
+	*target = parsedBytes
+	cfg.setValue(key, strconv.FormatInt(parsedBytes, 10), SourceEnv)
+	return nil
+}
+
+func (cfg *Config) applyIntEnv(key string, name string, min int, target *int) error {
+	raw := strings.TrimSpace(os.Getenv(name))
+	if raw == "" {
+		return nil
+	}
+	parsed, err := parseInt(raw, min)
+	if err != nil {
+		return fmt.Errorf("%s: %w", name, err)
+	}
+	*target = parsed
+	if key != "" {
+		cfg.setValue(key, strconv.Itoa(parsed), SourceEnv)
+	}
+	return nil
+}

lib/config/models.go

@@ -0,0 +1,112 @@
+package config
+
+type Source string
+
+const (
+	SourceDefault Source = "default"
+	SourceEnv     Source = "environment"
+	SourceDB      Source = "db override"
+)
+
+type AdminEnabledMode string
+
+const (
+	AdminEnabledAuto  AdminEnabledMode = "auto"
+	AdminEnabledTrue  AdminEnabledMode = "true"
+	AdminEnabledFalse AdminEnabledMode = "false"
+)
+
+const (
+	SettingGuestUploadsEnabled       = "guest_uploads_enabled"
+	SettingAPIEnabled                = "api_enabled"
+	SettingZipDownloadsEnabled       = "zip_downloads_enabled"
+	SettingOneTimeDownloadsEnabled   = "one_time_downloads_enabled"
+	SettingOneTimeDownloadExpirySecs = "one_time_download_expiry_seconds"
+	SettingOneTimeDownloadRetryFail  = "one_time_download_retry_on_failure"
+	SettingRenewOnAccessEnabled      = "renew_on_access_enabled"
+	SettingRenewOnDownloadEnabled    = "renew_on_download_enabled"
+	SettingDefaultGuestExpirySecs    = "default_guest_expiry_seconds"
+	SettingMaxGuestExpirySecs        = "max_guest_expiry_seconds"
+	SettingGlobalMaxFileSizeBytes    = "global_max_file_size_bytes"
+	SettingGlobalMaxBoxSizeBytes     = "global_max_box_size_bytes"
+	SettingDefaultUserMaxFileBytes   = "default_user_max_file_size_bytes"
+	SettingDefaultUserMaxBoxBytes    = "default_user_max_box_size_bytes"
+	SettingSessionTTLSeconds         = "session_ttl_seconds"
+	SettingBoxPollIntervalMS         = "box_poll_interval_ms"
+	SettingThumbnailBatchSize        = "thumbnail_batch_size"
+	SettingThumbnailIntervalSeconds  = "thumbnail_interval_seconds"
+	SettingDataDir                   = "data_dir"
+	SettingBoxOwnerEditEnabled       = "box_owner_edit_enabled"
+	SettingBoxOwnerRefreshEnabled    = "box_owner_refresh_enabled"
+	SettingBoxOwnerMaxRefreshCount   = "box_owner_max_refresh_count"
+	SettingBoxOwnerMaxRefreshAmount  = "box_owner_max_refresh_amount_seconds"
+	SettingBoxOwnerMaxTotalExpiry    = "box_owner_max_total_expiry_seconds"
+	SettingBoxOwnerPasswordEdit      = "box_owner_password_edit_enabled"
+)
+
+type SettingType string
+
+const (
+	SettingTypeBool  SettingType = "bool"
+	SettingTypeInt64 SettingType = "int64"
+	SettingTypeInt   SettingType = "int"
+	SettingTypeText  SettingType = "text"
+)
+
+type SettingDefinition struct {
+	Key       string
+	EnvName   string
+	Label     string
+	Type      SettingType
+	Editable  bool
+	HardLimit bool
+	Minimum   int64
+}
+
+type SettingRow struct {
+	Definition SettingDefinition
+	Value      string
+	Source     Source
+}
+
+type Config struct {
+	DataDir    string
+	UploadsDir string
+	DBDir      string
+
+	AdminPassword              string
+	AdminUsername              string
+	AdminEmail                 string
+	AdminEnabled               AdminEnabledMode
+	AdminCookieSecure          bool
+	AllowAdminSettingsOverride bool
+
+	GuestUploadsEnabled           bool
+	APIEnabled                    bool
+	ZipDownloadsEnabled           bool
+	OneTimeDownloadsEnabled       bool
+	OneTimeDownloadExpirySeconds  int64
+	OneTimeDownloadRetryOnFailure bool
+	RenewOnAccessEnabled          bool
+	RenewOnDownloadEnabled        bool
+
+	DefaultGuestExpirySeconds       int64
+	MaxGuestExpirySeconds           int64
+	GlobalMaxFileSizeBytes          int64
+	GlobalMaxBoxSizeBytes           int64
+	DefaultUserMaxFileSizeBytes     int64
+	DefaultUserMaxBoxSizeBytes      int64
+	SessionTTLSeconds               int64
+	BoxPollIntervalMS               int
+	ThumbnailBatchSize              int
+	ThumbnailIntervalSeconds        int
+	BoxOwnerEditEnabled             bool
+	BoxOwnerRefreshEnabled          bool
+	BoxOwnerMaxRefreshCount         int
+	BoxOwnerMaxRefreshAmountSeconds int64
+	BoxOwnerMaxTotalExpirySeconds   int64
+	BoxOwnerPasswordEditEnabled     bool
+
+	sources map[string]Source
+	values  map[string]string
+}

lib/config/overrides.go

@@ -0,0 +1,127 @@
+package config
+
+import (
+	"fmt"
+	"strconv"
+)
+
+func (cfg *Config) ApplyOverrides(overrides map[string]string) error {
+	if !cfg.AllowAdminSettingsOverride {
+		return nil
+	}
+	for key, value := range overrides {
+		if err := cfg.ApplyOverride(key, value); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (cfg *Config) ApplyOverride(key string, value string) error {
+	def, ok := Definition(key)
+	if !ok {
+		return fmt.Errorf("unknown setting %q", key)
+	}
+	if !def.Editable || def.HardLimit {
+		return fmt.Errorf("setting %q cannot be changed from the admin UI", key)
+	}
+
+	switch def.Type {
+	case SettingTypeBool:
+		parsed, err := parseBool(value)
+		if err != nil {
+			return fmt.Errorf("%s: %w", key, err)
+		}
+		cfg.assignBool(key, parsed, SourceDB)
+	case SettingTypeInt64:
+		parsed, err := parseInt64(value, def.Minimum)
+		if err != nil {
+			return fmt.Errorf("%s: %w", key, err)
+		}
+		cfg.assignInt64(key, parsed, SourceDB)
+	case SettingTypeInt:
+		parsed64, err := parseInt64(value, def.Minimum)
+		if err != nil {
+			return fmt.Errorf("%s: %w", key, err)
+		}
+		cfg.assignInt(key, int(parsed64), SourceDB)
+	default:
+		return fmt.Errorf("setting %q is not runtime editable", key)
+	}
+	return nil
+}
+func (cfg *Config) assignBool(key string, value bool, source Source) {
+	switch key {
+	case SettingGuestUploadsEnabled:
+		cfg.GuestUploadsEnabled = value
+	case SettingAPIEnabled:
+		cfg.APIEnabled = value
+	case SettingZipDownloadsEnabled:
+		cfg.ZipDownloadsEnabled = value
+	case SettingOneTimeDownloadsEnabled:
+		cfg.OneTimeDownloadsEnabled = value
+	case SettingRenewOnAccessEnabled:
+		cfg.RenewOnAccessEnabled = value
+	case SettingRenewOnDownloadEnabled:
+		cfg.RenewOnDownloadEnabled = value
+	case SettingBoxOwnerEditEnabled:
+		cfg.BoxOwnerEditEnabled = value
+	case SettingBoxOwnerRefreshEnabled:
+		cfg.BoxOwnerRefreshEnabled = value
+	case SettingBoxOwnerPasswordEdit:
+		cfg.BoxOwnerPasswordEditEnabled = value
+	}
+	cfg.setValue(key, formatBool(value), source)
+}
+
+func (cfg *Config) assignInt64(key string, value int64, source Source) {
+	switch key {
+	case SettingDefaultGuestExpirySecs:
+		cfg.DefaultGuestExpirySeconds = value
+	case SettingMaxGuestExpirySecs:
+		cfg.MaxGuestExpirySeconds = value
+	case SettingOneTimeDownloadExpirySecs:
+		cfg.OneTimeDownloadExpirySeconds = value
+	case SettingDefaultUserMaxFileBytes:
+		cfg.DefaultUserMaxFileSizeBytes = value
+	case SettingDefaultUserMaxBoxBytes:
+		cfg.DefaultUserMaxBoxSizeBytes = value
+	case SettingSessionTTLSeconds:
+		cfg.SessionTTLSeconds = value
+	case SettingBoxOwnerMaxRefreshAmount:
+		cfg.BoxOwnerMaxRefreshAmountSeconds = value
+	case SettingBoxOwnerMaxTotalExpiry:
+		cfg.BoxOwnerMaxTotalExpirySeconds = value
+	}
+	cfg.setValue(key, strconv.FormatInt(value, 10), source)
+}
+
+func (cfg *Config) assignInt(key string, value int, source Source) {
+	switch key {
+	case SettingBoxPollIntervalMS:
+		cfg.BoxPollIntervalMS = value
+	case SettingThumbnailBatchSize:
+		cfg.ThumbnailBatchSize = value
+	case SettingThumbnailIntervalSeconds:
+		cfg.ThumbnailIntervalSeconds = value
+	case SettingBoxOwnerMaxRefreshCount:
+		cfg.BoxOwnerMaxRefreshCount = value
+	}
+	cfg.setValue(key, strconv.Itoa(value), source)
+}
+
+func (cfg *Config) setValue(key string, value string, source Source) {
+	if key == "" {
+		return
+	}
+	cfg.values[key] = value
+	cfg.sources[key] = source
+}
+
+func (cfg *Config) sourceFor(key string) Source {
+	source, ok := cfg.sources[key]
+	if !ok {
+		return SourceDefault
+	}
+	return source
+}

lib/config/parse.go

@@ -0,0 +1,47 @@
+package config
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+func parseBool(value string) (bool, error) {
+	switch strings.ToLower(strings.TrimSpace(value)) {
+	case "1", "t", "true", "y", "yes", "on":
+		return true, nil
+	case "0", "f", "false", "n", "no", "off":
+		return false, nil
+	default:
+		return false, fmt.Errorf("must be a boolean")
+	}
+}
+
+func parseInt64(value string, min int64) (int64, error) {
+	parsed, err := strconv.ParseInt(strings.TrimSpace(value), 10, 64)
+	if err != nil {
+		return 0, fmt.Errorf("must be an integer")
+	}
+	if parsed < min {
+		return 0, fmt.Errorf("must be at least %d", min)
+	}
+	return parsed, nil
+}
+
+func parseInt(value string, min int) (int, error) {
+	parsed64, err := parseInt64(value, int64(min))
+	if err != nil {
+		return 0, err
+	}
+	if parsed64 > int64(^uint(0)>>1) {
+		return 0, fmt.Errorf("is too large")
+	}
+	return int(parsed64), nil
+}
+
+func formatBool(value bool) string {
+	if value {
+		return "true"
+	}
+	return "false"
+}

lib/helpers/env.go

@@ -0,0 +1,20 @@
+package helpers
+
+import (
+	"os"
+	"strconv"
+)
+
+func EnvInt(name string, fallback int, minimum int) int {
+	rawValue := os.Getenv(name)
+	if rawValue == "" {
+		return fallback
+	}
+
+	value, err := strconv.Atoi(rawValue)
+	if err != nil || value < minimum {
+		return fallback
+	}
+
+	return value
+}

lib/helpers/format.go

@@ -0,0 +1,20 @@
+package helpers
+
+import "fmt"
+
+func FormatBytes(bytes int64) string {
+	units := []string{"B", "KB", "MB", "GB"}
+	size := float64(bytes)
+	unitIndex := 0
+
+	for size >= 1024 && unitIndex < len(units)-1 {
+		size /= 1024
+		unitIndex++
+	}
+
+	if unitIndex == 0 {
+		return fmt.Sprintf("%d %s", bytes, units[unitIndex])
+	}
+
+	return fmt.Sprintf("%.1f %s", size, units[unitIndex])
+}

lib/helpers/ids.go

@@ -0,0 +1,30 @@
+package helpers
+
+import (
+	"crypto/rand"
+	"encoding/hex"
+	"strings"
+)
+
+func RandomHexID(byteCount int) (string, error) {
+	bytes := make([]byte, byteCount)
+	if _, err := rand.Read(bytes); err != nil {
+		return "", err
+	}
+
+	return hex.EncodeToString(bytes), nil
+}
+
+func ValidLowerHexID(value string, length int) bool {
+	if len(value) != length {
+		return false
+	}
+
+	for _, character := range value {
+		if !strings.ContainsRune("0123456789abcdef", character) {
+			return false
+		}
+	}
+
+	return true
+}

lib/helpers/mime.go

@@ -0,0 +1,30 @@
+package helpers
+
+import (
+	"io"
+	"mime"
+	"net/http"
+	"os"
+	"path/filepath"
+	"strings"
+)
+
+func MimeTypeForFile(path string, filename string) string {
+	if mimeType := mime.TypeByExtension(strings.ToLower(filepath.Ext(filename))); mimeType != "" {
+		return mimeType
+	}
+
+	file, err := os.Open(path)
+	if err != nil {
+		return "application/octet-stream"
+	}
+	defer file.Close()
+
+	buffer := make([]byte, 512)
+	bytesRead, err := file.Read(buffer)
+	if err != nil && err != io.EOF {
+		return "application/octet-stream"
+	}
+
+	return http.DetectContentType(buffer[:bytesRead])
+}

lib/helpers/paths.go

@@ -0,0 +1,58 @@
+package helpers
+
+import (
+	"os"
+	"path/filepath"
+	"strconv"
+	"strings"
+)
+
+func SafeFilename(name string) (string, bool) {
+	filename := filepath.Base(name)
+	filename = strings.TrimSpace(filename)
+	return filename, filename != "" && filename != "." && filename != string(filepath.Separator)
+}
+
+func SafeChildPath(parent string, filename string) (string, bool) {
+	parent = filepath.Clean(parent)
+	filename = strings.TrimSpace(filename)
+	if parent == "" || filename == "" || filepath.IsAbs(filename) {
+		return "", false
+	}
+
+	path := filepath.Clean(filepath.Join(parent, filename))
+	relative, err := filepath.Rel(parent, path)
+	if err != nil || relative == "." || strings.HasPrefix(relative, ".."+string(filepath.Separator)) || relative == ".." {
+		return "", false
+	}
+
+	return path, true
+}
+
+func UniqueFilename(directory string, filename string) string {
+	if _, err := os.Stat(filepath.Join(directory, filename)); os.IsNotExist(err) {
+		return filename
+	}
+
+	extension := filepath.Ext(filename)
+	base := strings.TrimSuffix(filename, extension)
+	for count := 2; ; count++ {
+		candidate := base + "-" + strconv.Itoa(count) + extension
+		if _, err := os.Stat(filepath.Join(directory, candidate)); os.IsNotExist(err) {
+			return candidate
+		}
+	}
+}
+
+func UniqueNameInBatch(filename string, usedNames map[string]int) string {
+	count := usedNames[filename]
+	usedNames[filename] = count + 1
+
+	if count == 0 {
+		return filename
+	}
+
+	extension := filepath.Ext(filename)
+	base := strings.TrimSuffix(filename, extension)
+	return base + "-" + strconv.Itoa(count+1) + extension
+}

lib/helpers/paths_test.go

@@ -0,0 +1,20 @@
+package helpers
+
+import (
+	"path/filepath"
+	"testing"
+)
+
+func TestSafeChildPathRejectsTraversalAndAbsolutePaths(t *testing.T) {
+	parent := filepath.Join(t.TempDir(), "parent")
+
+	if _, ok := SafeChildPath(parent, "../outside.txt"); ok {
+		t.Fatal("expected traversal to be rejected")
+	}
+	if _, ok := SafeChildPath(parent, filepath.Join(string(filepath.Separator), "tmp", "outside.txt")); ok {
+		t.Fatal("expected absolute path to be rejected")
+	}
+	if path, ok := SafeChildPath(parent, "inside.txt"); !ok || path != filepath.Join(parent, "inside.txt") {
+		t.Fatalf("expected safe child path, got path=%q ok=%v", path, ok)
+	}
+}

lib/metastore/alerts.go

@@ -0,0 +1,247 @@
+package metastore
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"sort"
+	"strings"
+	"time"
+
+	"github.com/dgraph-io/badger/v4"
+
+	"warpbox/lib/helpers"
+)
+
+const (
+	AlertSeverityLow    = "low"
+	AlertSeverityMedium = "medium"
+	AlertSeverityHigh   = "high"
+
+	AlertStatusOpen         = "open"
+	AlertStatusAcknowledged = "acknowledged"
+	AlertStatusClosed       = "closed"
+)
+
+func (store *Store) CreateAlert(input AlertInput) (Alert, error) {
+	alert, err := normalizeAlertInput(input)
+	if err != nil {
+		return Alert{}, err
+	}
+	id, err := helpers.RandomHexID(16)
+	if err != nil {
+		return Alert{}, err
+	}
+	now := time.Now().UTC()
+	alert.ID = id
+	alert.Status = AlertStatusOpen
+	alert.CreatedAt = now
+	alert.UpdatedAt = now
+
+	err = store.db.Update(func(txn *badger.Txn) error {
+		return putJSON(txn, alertKey(alert.ID), alert)
+	})
+	return alert, err
+}
+
+func (store *Store) ListAlerts(filters AlertFilters) ([]Alert, error) {
+	alerts := []Alert{}
+	err := store.db.View(func(txn *badger.Txn) error {
+		opts := badger.DefaultIteratorOptions
+		opts.Prefix = []byte("alert/")
+		it := txn.NewIterator(opts)
+		defer it.Close()
+
+		for it.Rewind(); it.Valid(); it.Next() {
+			var alert Alert
+			if err := it.Item().Value(func(data []byte) error {
+				return json.Unmarshal(data, &alert)
+			}); err != nil {
+				return err
+			}
+			if alertMatchesFilters(alert, filters) {
+				alerts = append(alerts, alert)
+			}
+		}
+		return nil
+	})
+	if err != nil {
+		return nil, err
+	}
+	sortAlerts(alerts, filters.Sort)
+	return alerts, nil
+}
+
+func (store *Store) GetAlert(id string) (Alert, bool, error) {
+	id = strings.TrimSpace(id)
+	if id == "" {
+		return Alert{}, false, nil
+	}
+	var alert Alert
+	err := store.db.View(func(txn *badger.Txn) error {
+		return getJSON(txn, alertKey(id), &alert)
+	})
+	if errors.Is(err, ErrNotFound) {
+		return Alert{}, false, nil
+	}
+	return alert, err == nil, err
+}
+
+func (store *Store) AcknowledgeAlert(id string) error {
+	return store.updateAlertStatus(id, AlertStatusAcknowledged)
+}
+
+func (store *Store) CloseAlert(id string) error {
+	return store.updateAlertStatus(id, AlertStatusClosed)
+}
+
+func (store *Store) updateAlertStatus(id string, status string) error {
+	id = strings.TrimSpace(id)
+	if id == "" {
+		return fmt.Errorf("%w: alert id cannot be empty", ErrInvalid)
+	}
+	status, err := normalizeAlertStatus(status)
+	if err != nil {
+		return err
+	}
+	now := time.Now().UTC()
+	return store.db.Update(func(txn *badger.Txn) error {
+		var alert Alert
+		if err := getJSON(txn, alertKey(id), &alert); err != nil {
+			return err
+		}
+		alert.Status = status
+		alert.UpdatedAt = now
+		switch status {
+		case AlertStatusAcknowledged:
+			alert.AcknowledgedAt = &now
+		case AlertStatusClosed:
+			alert.ClosedAt = &now
+		}
+		return putJSON(txn, alertKey(id), alert)
+	})
+}
+
+func normalizeAlertInput(input AlertInput) (Alert, error) {
+	title := strings.TrimSpace(input.Title)
+	description := strings.TrimSpace(input.Description)
+	code := strings.TrimSpace(input.Code)
+	trace := strings.TrimSpace(input.Trace)
+	severity, err := normalizeAlertSeverity(input.Severity)
+	if err != nil {
+		return Alert{}, err
+	}
+	if title == "" {
+		return Alert{}, fmt.Errorf("%w: alert title cannot be empty", ErrInvalid)
+	}
+	if code == "" {
+		return Alert{}, fmt.Errorf("%w: alert code cannot be empty", ErrInvalid)
+	}
+	if trace == "" {
+		return Alert{}, fmt.Errorf("%w: alert trace cannot be empty", ErrInvalid)
+	}
+	metadata := input.Metadata
+	if len(metadata) == 0 {
+		metadata = json.RawMessage(`{}`)
+	}
+	var object map[string]any
+	if err := json.Unmarshal(metadata, &object); err != nil {
+		return Alert{}, fmt.Errorf("%w: alert metadata must be a JSON object", ErrInvalid)
+	}
+	normalizedMetadata, err := json.Marshal(object)
+	if err != nil {
+		return Alert{}, err
+	}
+	return Alert{
+		Title:       title,
+		Description: description,
+		Severity:    severity,
+		Code:        code,
+		Trace:       trace,
+		Metadata:    normalizedMetadata,
+		CreatedBy:   strings.TrimSpace(input.CreatedBy),
+	}, nil
+}
+
+func normalizeAlertSeverity(value string) (string, error) {
+	switch strings.ToLower(strings.TrimSpace(value)) {
+	case AlertSeverityLow, AlertSeverityMedium, AlertSeverityHigh:
+		return strings.ToLower(strings.TrimSpace(value)), nil
+	default:
+		return "", fmt.Errorf("%w: invalid alert severity", ErrInvalid)
+	}
+}
+
+func normalizeAlertStatus(value string) (string, error) {
+	switch strings.ToLower(strings.TrimSpace(value)) {
+	case AlertStatusOpen, AlertStatusAcknowledged, AlertStatusClosed:
+		return strings.ToLower(strings.TrimSpace(value)), nil
+	default:
+		return "", fmt.Errorf("%w: invalid alert status", ErrInvalid)
+	}
+}
+
+func alertMatchesFilters(alert Alert, filters AlertFilters) bool {
+	query := strings.ToLower(strings.TrimSpace(filters.Query))
+	if query != "" {
+		haystack := strings.ToLower(strings.Join([]string{alert.Title, alert.Description, alert.Code, alert.Trace}, " "))
+		if !strings.Contains(haystack, query) {
+			return false
+		}
+	}
+	if severity := strings.ToLower(strings.TrimSpace(filters.Severity)); severity != "" && severity != "all" && alert.Severity != severity {
+		return false
+	}
+	if status := strings.ToLower(strings.TrimSpace(filters.Status)); status != "" && status != "all" && alert.Status != status {
+		return false
+	}
+	if group := strings.ToLower(strings.TrimSpace(filters.Group)); group != "" && group != "all" && alertGroup(alert.Trace) != group {
+		return false
+	}
+	return true
+}
+
+func sortAlerts(alerts []Alert, sortKey string) {
+	switch strings.ToLower(strings.TrimSpace(sortKey)) {
+	case "oldest":
+		sort.Slice(alerts, func(i int, j int) bool { return alerts[i].CreatedAt.Before(alerts[j].CreatedAt) })
+	case "severity":
+		sort.Slice(alerts, func(i int, j int) bool {
+			left := alertSeverityRank(alerts[i].Severity)
+			right := alertSeverityRank(alerts[j].Severity)
+			if left == right {
+				return alerts[i].CreatedAt.After(alerts[j].CreatedAt)
+			}
+			return left > right
+		})
+	default:
+		sort.Slice(alerts, func(i int, j int) bool { return alerts[i].CreatedAt.After(alerts[j].CreatedAt) })
+	}
+}
+
+func alertSeverityRank(severity string) int {
+	switch severity {
+	case AlertSeverityHigh:
+		return 3
+	case AlertSeverityMedium:
+		return 2
+	default:
+		return 1
+	}
+}
+
+func alertGroup(trace string) string {
+	trace = strings.TrimSpace(trace)
+	if trace == "" {
+		return "system"
+	}
+	before, _, found := strings.Cut(trace, ".")
+	if !found || before == "" {
+		return "system"
+	}
+	return strings.ToLower(before)
+}
+
+func alertKey(id string) []byte {
+	return []byte("alert/" + strings.TrimSpace(id))
+}

lib/metastore/alerts_test.go

@@ -0,0 +1,89 @@
+package metastore
+
+import (
+	"encoding/json"
+	"testing"
+)
+
+func TestAlertCreateListFilterLifecycle(t *testing.T) {
+	store, err := Open(t.TempDir())
+	if err != nil {
+		t.Fatalf("Open returned error: %v", err)
+	}
+	defer store.Close()
+
+	alert, err := store.CreateAlert(AlertInput{
+		Title:       "Thumbnail failed",
+		Description: "Could not generate preview.",
+		Severity:    AlertSeverityMedium,
+		Code:        "601",
+		Trace:       "thumbnail.generate.failed",
+		Metadata:    json.RawMessage(`{"box":"box-1","file":"photo.jpg"}`),
+		CreatedBy:   "system",
+	})
+	if err != nil {
+		t.Fatalf("CreateAlert returned error: %v", err)
+	}
+	if alert.ID == "" || alert.Status != AlertStatusOpen {
+		t.Fatalf("unexpected alert: %#v", alert)
+	}
+
+	alerts, err := store.ListAlerts(AlertFilters{Severity: AlertSeverityMedium, Status: AlertStatusOpen})
+	if err != nil {
+		t.Fatalf("ListAlerts returned error: %v", err)
+	}
+	if len(alerts) != 1 || alerts[0].Trace != "thumbnail.generate.failed" {
+		t.Fatalf("unexpected filtered alerts: %#v", alerts)
+	}
+
+	if !json.Valid(alerts[0].Metadata) {
+		t.Fatalf("expected valid metadata JSON: %s", string(alerts[0].Metadata))
+	}
+	var metadata map[string]string
+	if err := json.Unmarshal(alerts[0].Metadata, &metadata); err != nil {
+		t.Fatalf("Unmarshal metadata returned error: %v", err)
+	}
+	if metadata["file"] != "photo.jpg" {
+		t.Fatalf("metadata did not survive round trip: %#v", metadata)
+	}
+
+	if err := store.AcknowledgeAlert(alert.ID); err != nil {
+		t.Fatalf("AcknowledgeAlert returned error: %v", err)
+	}
+	acknowledged, ok, err := store.GetAlert(alert.ID)
+	if err != nil || !ok {
+		t.Fatalf("GetAlert returned ok=%v err=%v", ok, err)
+	}
+	if acknowledged.Status != AlertStatusAcknowledged || acknowledged.AcknowledgedAt == nil {
+		t.Fatalf("expected acknowledged alert, got %#v", acknowledged)
+	}
+
+	if err := store.CloseAlert(alert.ID); err != nil {
+		t.Fatalf("CloseAlert returned error: %v", err)
+	}
+	closed, ok, err := store.GetAlert(alert.ID)
+	if err != nil || !ok {
+		t.Fatalf("GetAlert returned ok=%v err=%v", ok, err)
+	}
+	if closed.Status != AlertStatusClosed || closed.ClosedAt == nil {
+		t.Fatalf("expected closed alert, got %#v", closed)
+	}
+}
+
+func TestAlertRejectsInvalidMetadata(t *testing.T) {
+	store, err := Open(t.TempDir())
+	if err != nil {
+		t.Fatalf("Open returned error: %v", err)
+	}
+	defer store.Close()
+
+	if _, err := store.CreateAlert(AlertInput{
+		Title:    "Bad alert",
+		Severity: AlertSeverityLow,
+		Code:     "999",
+		Trace:    "test.bad",
+		Metadata: json.RawMessage(`[]`),
+	}); err == nil {
+		t.Fatal("expected non-object metadata to be rejected")
+	}
+}

lib/metastore/bootstrap.go

@@ -0,0 +1,71 @@
+package metastore
+
+import (
+	"strings"
+
+	"warpbox/lib/config"
+)
+
+func BootstrapAdmin(cfg *config.Config, store *Store) (BootstrapResult, error) {
+	adminTag, err := store.EnsureAdminTag()
+	if err != nil {
+		return BootstrapResult{}, err
+	}
+
+	var adminUser *User
+	user, ok, err := store.GetUserByUsername(cfg.AdminUsername)
+	if err != nil {
+		return BootstrapResult{}, err
+	}
+	if ok {
+		if !hasString(user.TagIDs, adminTag.ID) {
+			user.TagIDs = append(user.TagIDs, adminTag.ID)
+			if err := store.UpdateUser(user); err != nil {
+				return BootstrapResult{}, err
+			}
+		}
+		adminUser = &user
+	} else if strings.TrimSpace(cfg.AdminPassword) != "" {
+		created, err := store.CreateUserWithPassword(cfg.AdminUsername, cfg.AdminEmail, cfg.AdminPassword, []string{adminTag.ID})
+		if err != nil {
+			return BootstrapResult{}, err
+		}
+		adminUser = &created
+	}
+
+	hasAdminUser, err := store.HasAdminUser(adminTag.ID)
+	if err != nil {
+		return BootstrapResult{}, err
+	}
+
+	return BootstrapResult{
+		AdminTag:          adminTag,
+		AdminUser:         adminUser,
+		AdminLoginEnabled: cfg.AdminLoginEnabled(hasAdminUser),
+	}, nil
+}
+
+func (store *Store) HasAdminUser(adminTagID string) (bool, error) {
+	users, err := store.ListUsers()
+	if err != nil {
+		return false, err
+	}
+	for _, user := range users {
+		if user.Disabled {
+			continue
+		}
+		if hasString(user.TagIDs, adminTagID) {
+			return true, nil
+		}
+	}
+	return false, nil
+}
+
+func hasString(values []string, target string) bool {
+	for _, value := range values {
+		if value == target {
+			return true
+		}
+	}
+	return false
+}

lib/metastore/boxes.go

@@ -0,0 +1,188 @@
+package metastore
+
+import (
+	"encoding/json"
+	"errors"
+	"sort"
+	"strings"
+	"time"
+
+	"github.com/dgraph-io/badger/v4"
+)
+
+func (store *Store) UpsertBoxRecord(record BoxRecord) error {
+	record.ID = strings.TrimSpace(record.ID)
+	if record.ID == "" {
+		return errors.New("box id cannot be empty")
+	}
+	record.OwnerID = strings.TrimSpace(record.OwnerID)
+	record.OwnerUsername = strings.TrimSpace(record.OwnerUsername)
+	record.FileNames = uniqueStrings(record.FileNames)
+	record.UpdatedAt = time.Now().UTC()
+	return store.db.Update(func(txn *badger.Txn) error {
+		return putJSON(txn, boxRecordKey(record.ID), record)
+	})
+}
+
+func (store *Store) GetBoxRecord(id string) (BoxRecord, bool, error) {
+	var record BoxRecord
+	err := store.db.View(func(txn *badger.Txn) error {
+		return getJSON(txn, boxRecordKey(id), &record)
+	})
+	if errors.Is(err, ErrNotFound) {
+		return BoxRecord{}, false, nil
+	}
+	return record, err == nil, err
+}
+
+func (store *Store) DeleteBoxRecord(id string) error {
+	return store.db.Update(func(txn *badger.Txn) error {
+		err := txn.Delete(boxRecordKey(id))
+		if errors.Is(err, badger.ErrKeyNotFound) {
+			return nil
+		}
+		return err
+	})
+}
+
+func (store *Store) ListBoxRecords(filters BoxFilters, page BoxPageRequest) (BoxRecordPage, error) {
+	if page.Page < 1 {
+		page.Page = 1
+	}
+	switch page.PageSize {
+	case 25, 50, 100:
+	default:
+		page.PageSize = 25
+	}
+
+	rows := []BoxRecord{}
+	err := store.db.View(func(txn *badger.Txn) error {
+		opts := badger.DefaultIteratorOptions
+		opts.Prefix = []byte("box_record/")
+		it := txn.NewIterator(opts)
+		defer it.Close()
+
+		for it.Rewind(); it.Valid(); it.Next() {
+			var record BoxRecord
+			if err := it.Item().Value(func(data []byte) error {
+				return json.Unmarshal(data, &record)
+			}); err != nil {
+				return err
+			}
+			if boxRecordMatches(record, filters) {
+				rows = append(rows, record)
+			}
+		}
+		return nil
+	})
+	if err != nil {
+		return BoxRecordPage{}, err
+	}
+
+	sortBoxRecords(rows, filters.Sort)
+	total := len(rows)
+	start := (page.Page - 1) * page.PageSize
+	if start > total {
+		start = total
+	}
+	end := start + page.PageSize
+	if end > total {
+		end = total
+	}
+	totalPages := 1
+	if total > 0 {
+		totalPages = (total + page.PageSize - 1) / page.PageSize
+	}
+	return BoxRecordPage{
+		Rows:       rows[start:end],
+		Page:       page.Page,
+		PageSize:   page.PageSize,
+		Total:      total,
+		HasPrev:    page.Page > 1,
+		HasNext:    end < total,
+		PrevPage:   maxInt(page.Page-1, 1),
+		NextPage:   page.Page + 1,
+		TotalPages: totalPages,
+	}, nil
+}
+
+func boxRecordMatches(record BoxRecord, filters BoxFilters) bool {
+	query := strings.ToLower(strings.TrimSpace(filters.Query))
+	if query != "" {
+		haystack := strings.ToLower(record.ID + " " + record.OwnerUsername + " " + strings.Join(record.FileNames, " "))
+		if !strings.Contains(haystack, query) {
+			return false
+		}
+	}
+	owner := strings.ToLower(strings.TrimSpace(filters.Owner))
+	if owner != "" && owner != "all" && strings.ToLower(record.OwnerUsername) != owner && strings.ToLower(record.OwnerID) != owner {
+		return false
+	}
+	status := strings.ToLower(strings.TrimSpace(filters.Status))
+	if status != "" && status != "all" && boxRecordStatus(record) != status {
+		return false
+	}
+	switch strings.ToLower(strings.TrimSpace(filters.Flag)) {
+	case "", "all":
+		return true
+	case "password":
+		return record.PasswordProtected
+	case "one-time":
+		return record.OneTimeDownload
+	case "zip-disabled":
+		return record.DisableZip
+	case "expired":
+		return boxRecordExpired(record)
+	case "refreshable":
+		return !record.OneTimeDownload && !boxRecordExpired(record)
+	default:
+		return false
+	}
+}
+
+func sortBoxRecords(rows []BoxRecord, sortKey string) {
+	switch strings.ToLower(strings.TrimSpace(sortKey)) {
+	case "oldest":
+		sort.Slice(rows, func(i int, j int) bool { return rows[i].CreatedAt.Before(rows[j].CreatedAt) })
+	case "largest":
+		sort.Slice(rows, func(i int, j int) bool { return rows[i].TotalSize > rows[j].TotalSize })
+	case "expires":
+		sort.Slice(rows, func(i int, j int) bool { return rows[i].ExpiresAt.Before(rows[j].ExpiresAt) })
+	case "expired":
+		sort.Slice(rows, func(i int, j int) bool {
+			left := boxRecordExpired(rows[i])
+			right := boxRecordExpired(rows[j])
+			if left == right {
+				return rows[i].CreatedAt.After(rows[j].CreatedAt)
+			}
+			return left
+		})
+	default:
+		sort.Slice(rows, func(i int, j int) bool { return rows[i].CreatedAt.After(rows[j].CreatedAt) })
+	}
+}
+
+func boxRecordStatus(record BoxRecord) string {
+	if boxRecordExpired(record) {
+		return "expired"
+	}
+	if record.ExpiresAt.IsZero() {
+		return "pending"
+	}
+	return "active"
+}
+
+func boxRecordExpired(record BoxRecord) bool {
+	return !record.ExpiresAt.IsZero() && time.Now().UTC().After(record.ExpiresAt)
+}
+
+func boxRecordKey(id string) []byte {
+	return []byte("box_record/" + strings.TrimSpace(id))
+}
+
+func maxInt(a int, b int) int {
+	if a > b {
+		return a
+	}
+	return b
+}

lib/metastore/metastore_test.go

@@ -0,0 +1,222 @@
+package metastore
+
+import (
+	"errors"
+	"testing"
+	"time"
+
+	"warpbox/lib/config"
+)
+
+func TestOpenClose(t *testing.T) {
+	store, err := Open(t.TempDir())
+	if err != nil {
+		t.Fatalf("Open returned error: %v", err)
+	}
+	if err := store.Close(); err != nil {
+		t.Fatalf("Close returned error: %v", err)
+	}
+}
+
+func TestBootstrapAdminFromPassword(t *testing.T) {
+	clearMetastoreConfigEnv(t)
+	t.Setenv("WARPBOX_ADMIN_PASSWORD", "secret-pass")
+	t.Setenv("WARPBOX_ADMIN_EMAIL", "admin@example.test")
+
+	cfg, err := config.Load()
+	if err != nil {
+		t.Fatalf("Load returned error: %v", err)
+	}
+	store := openTestStore(t)
+
+	result, err := BootstrapAdmin(cfg, store)
+	if err != nil {
+		t.Fatalf("BootstrapAdmin returned error: %v", err)
+	}
+	if !result.AdminLoginEnabled {
+		t.Fatal("expected admin login to be enabled")
+	}
+	if !result.AdminTag.Protected {
+		t.Fatal("expected admin tag to be protected")
+	}
+	if result.AdminUser == nil {
+		t.Fatal("expected bootstrap admin user")
+	}
+	if !hasString(result.AdminUser.TagIDs, result.AdminTag.ID) {
+		t.Fatal("expected bootstrap admin to have admin tag")
+	}
+	if !VerifyPassword(result.AdminUser.PasswordHash, "secret-pass") {
+		t.Fatal("expected bootstrap admin password to verify")
+	}
+}
+
+func TestBootstrapAdminDisabledWithoutPassword(t *testing.T) {
+	clearMetastoreConfigEnv(t)
+
+	cfg, err := config.Load()
+	if err != nil {
+		t.Fatalf("Load returned error: %v", err)
+	}
+	store := openTestStore(t)
+
+	result, err := BootstrapAdmin(cfg, store)
+	if err != nil {
+		t.Fatalf("BootstrapAdmin returned error: %v", err)
+	}
+	if result.AdminLoginEnabled {
+		t.Fatal("expected admin login to be disabled without password or existing admin")
+	}
+	if !result.AdminTag.Protected {
+		t.Fatal("expected admin tag to still be created")
+	}
+	users, err := store.ListUsers()
+	if err != nil {
+		t.Fatalf("ListUsers returned error: %v", err)
+	}
+	if len(users) != 0 {
+		t.Fatalf("expected no users, got %d", len(users))
+	}
+}
+
+func TestDuplicateUsersAndTags(t *testing.T) {
+	store := openTestStore(t)
+
+	if _, err := store.CreateUserWithPassword("alex", "alex@example.test", "secret", nil); err != nil {
+		t.Fatalf("CreateUserWithPassword returned error: %v", err)
+	}
+	if _, err := store.CreateUserWithPassword("Alex", "other@example.test", "secret", nil); !errors.Is(err, ErrDuplicate) {
+		t.Fatalf("expected duplicate username error, got %v", err)
+	}
+	if _, err := store.CreateUserWithPassword("other", "alex@example.test", "secret", nil); !errors.Is(err, ErrDuplicate) {
+		t.Fatalf("expected duplicate email error, got %v", err)
+	}
+
+	tag := Tag{Name: "staff"}
+	if err := store.CreateTag(&tag); err != nil {
+		t.Fatalf("CreateTag returned error: %v", err)
+	}
+	duplicate := Tag{Name: "Staff"}
+	if err := store.CreateTag(&duplicate); !errors.Is(err, ErrDuplicate) {
+		t.Fatalf("expected duplicate tag error, got %v", err)
+	}
+}
+
+func TestPermissionResolutionAndGlobalCaps(t *testing.T) {
+	clearMetastoreConfigEnv(t)
+	t.Setenv("WARPBOX_DEFAULT_USER_MAX_FILE_SIZE_BYTES", "50")
+	t.Setenv("WARPBOX_GLOBAL_MAX_FILE_SIZE_BYTES", "100")
+	t.Setenv("WARPBOX_GLOBAL_MAX_BOX_SIZE_BYTES", "1000")
+
+	cfg, err := config.Load()
+	if err != nil {
+		t.Fatalf("Load returned error: %v", err)
+	}
+	tagFileLimit := int64(80)
+	tagBoxLimit := int64(2000)
+	userFileLimit := int64(60)
+	user := User{MaxFileSizeBytes: &userFileLimit}
+	tags := []Tag{
+		{
+			Permissions: TagPermissions{
+				UploadAllowed:        true,
+				AllowedExpirySeconds: []int64{3600, 600},
+				MaxFileSizeBytes:     &tagFileLimit,
+				MaxBoxSizeBytes:      &tagBoxLimit,
+				ZipDownloadAllowed:   true,
+			},
+		},
+	}
+
+	perms := ResolveUserPermissions(cfg, user, tags)
+	if !perms.UploadAllowed || !perms.ZipDownloadAllowed {
+		t.Fatal("expected tag booleans to grant permissions")
+	}
+	if perms.MaxFileSizeBytes != 80 {
+		t.Fatalf("expected tag limit to beat user/default limit, got %d", perms.MaxFileSizeBytes)
+	}
+	if perms.MaxBoxSizeBytes != 1000 {
+		t.Fatalf("expected global max box cap, got %d", perms.MaxBoxSizeBytes)
+	}
+	if len(perms.AllowedExpirySeconds) != 2 || perms.AllowedExpirySeconds[0] != 600 || perms.AllowedExpirySeconds[1] != 3600 {
+		t.Fatalf("unexpected expiry durations: %#v", perms.AllowedExpirySeconds)
+	}
+}
+
+func TestSettingsStorageAndPrecedence(t *testing.T) {
+	clearMetastoreConfigEnv(t)
+	t.Setenv("WARPBOX_API_ENABLED", "true")
+
+	store := openTestStore(t)
+	if err := store.SetSetting(config.SettingAPIEnabled, "false"); err != nil {
+		t.Fatalf("SetSetting returned error: %v", err)
+	}
+	overrides, err := store.ListSettings()
+	if err != nil {
+		t.Fatalf("ListSettings returned error: %v", err)
+	}
+	cfg, err := config.Load()
+	if err != nil {
+		t.Fatalf("Load returned error: %v", err)
+	}
+	if err := cfg.ApplyOverrides(overrides); err != nil {
+		t.Fatalf("ApplyOverrides returned error: %v", err)
+	}
+	if cfg.APIEnabled {
+		t.Fatal("expected stored DB override to beat env")
+	}
+}
+
+func TestSessionExpiry(t *testing.T) {
+	store := openTestStore(t)
+	session, err := store.CreateSession("user-id", time.Millisecond)
+	if err != nil {
+		t.Fatalf("CreateSession returned error: %v", err)
+	}
+	time.Sleep(2 * time.Millisecond)
+	if _, ok, err := store.GetSession(session.Token); err != nil || ok {
+		t.Fatalf("expected expired session to be invalid, ok=%v err=%v", ok, err)
+	}
+}
+
+func openTestStore(t *testing.T) *Store {
+	t.Helper()
+	store, err := Open(t.TempDir())
+	if err != nil {
+		t.Fatalf("Open returned error: %v", err)
+	}
+	t.Cleanup(func() {
+		_ = store.Close()
+	})
+	return store
+}
+
+func clearMetastoreConfigEnv(t *testing.T) {
+	t.Helper()
+	for _, name := range []string{
+		"WARPBOX_DATA_DIR",
+		"WARPBOX_ADMIN_PASSWORD",
+		"WARPBOX_ADMIN_USERNAME",
+		"WARPBOX_ADMIN_EMAIL",
+		"WARPBOX_ADMIN_ENABLED",
+		"WARPBOX_ALLOW_ADMIN_SETTINGS_OVERRIDE",
+		"WARPBOX_ADMIN_COOKIE_SECURE",
+		"WARPBOX_GUEST_UPLOADS_ENABLED",
+		"WARPBOX_API_ENABLED",
+		"WARPBOX_ZIP_DOWNLOADS_ENABLED",
+		"WARPBOX_ONE_TIME_DOWNLOADS_ENABLED",
+		"WARPBOX_RENEW_ON_ACCESS_ENABLED",
+		"WARPBOX_RENEW_ON_DOWNLOAD_ENABLED",
+		"WARPBOX_DEFAULT_GUEST_EXPIRY_SECONDS",
+		"WARPBOX_MAX_GUEST_EXPIRY_SECONDS",
+		"WARPBOX_GLOBAL_MAX_FILE_SIZE_BYTES",
+		"WARPBOX_GLOBAL_MAX_BOX_SIZE_BYTES",
+		"WARPBOX_DEFAULT_USER_MAX_FILE_SIZE_BYTES",
+		"WARPBOX_DEFAULT_USER_MAX_BOX_SIZE_BYTES",
+		"WARPBOX_SESSION_TTL_SECONDS",
+		"WARPBOX_BOX_POLL_INTERVAL_MS",
+		"WARPBOX_THUMBNAIL_BATCH_SIZE",
+		"WARPBOX_THUMBNAIL_INTERVAL_SECONDS",
+	} {
+		t.Setenv(name, "")
+	}
+}

lib/metastore/models.go

@@ -0,0 +1,242 @@
+package metastore
+
+import (
+	"encoding/json"
+	"time"
+)
+
+const AdminTagName = "admin"
+
+type User struct {
+	ID               string             `json:"id"`
+	Username         string             `json:"username"`
+	Email            string             `json:"email,omitempty"`
+	PasswordHash     string             `json:"password_hash"`
+	TagIDs           []string           `json:"tag_ids"`
+	CreatedAt        time.Time          `json:"created_at"`
+	UpdatedAt        time.Time          `json:"updated_at"`
+	Disabled         bool               `json:"disabled"`
+	AdminNote        string             `json:"admin_note,omitempty"`
+	MaxFileSizeBytes *int64             `json:"max_file_size_bytes,omitempty"`
+	MaxBoxSizeBytes  *int64             `json:"max_box_size_bytes,omitempty"`
+	MaxExpirySeconds *int64             `json:"max_expiry_seconds,omitempty"`
+	PermOverrides    *UserPermOverrides `json:"perm_overrides,omitempty"`
+}
+
+type UserPermOverrides struct {
+	UploadAllowed          *bool `json:"upload_allowed,omitempty"`
+	ManageOwnBoxes         *bool `json:"manage_own_boxes,omitempty"`
+	ZipDownloadAllowed     *bool `json:"zip_download_allowed,omitempty"`
+	OneTimeDownloadAllowed *bool `json:"one_time_download_allowed,omitempty"`
+	RenewableAllowed       *bool `json:"renewable_allowed,omitempty"`
+	AllowPasswordProtected *bool `json:"allow_password_protected,omitempty"`
+	RenewOnAccess          *bool `json:"renew_on_access,omitempty"`
+	RenewOnDownload        *bool `json:"renew_on_download,omitempty"`
+	AllowOwnerBoxEditing   *bool `json:"allow_owner_box_editing,omitempty"`
+}
+
+type Tag struct {
+	ID          string         `json:"id"`
+	Name        string         `json:"name"`
+	Description string         `json:"description,omitempty"`
+	CreatedAt   time.Time      `json:"created_at"`
+	UpdatedAt   time.Time      `json:"updated_at"`
+	Protected   bool           `json:"protected"`
+	Permissions TagPermissions `json:"permissions"`
+}
+
+type TagPermissions struct {
+	UploadAllowed          bool    `json:"upload_allowed"`
+	AllowedExpirySeconds   []int64 `json:"allowed_expiry_seconds,omitempty"`
+	MaxFileSizeBytes       *int64  `json:"max_file_size_bytes,omitempty"`
+	MaxBoxSizeBytes        *int64  `json:"max_box_size_bytes,omitempty"`
+	OneTimeDownloadAllowed bool    `json:"one_time_download_allowed"`
+	ZipDownloadAllowed     bool    `json:"zip_download_allowed"`
+	RenewableAllowed       bool    `json:"renewable_allowed"`
+	RenewOnAccessSeconds   int64   `json:"renew_on_access_seconds,omitempty"`
+	RenewOnDownloadSeconds int64   `json:"renew_on_download_seconds,omitempty"`
+	AdminAccess            bool    `json:"admin_access"`
+	AdminUsersView         bool    `json:"admin_users_view"`
+	AdminUsersManage       bool    `json:"admin_users_manage"`
+	AdminSettingsManage    bool    `json:"admin_settings_manage"`
+	AdminBoxesView         bool    `json:"admin_boxes_view"`
+}
+
+type Session struct {
+	Token     string    `json:"token"`
+	CSRFToken string    `json:"csrf_token"`
+	UserID    string    `json:"user_id"`
+	CreatedAt time.Time `json:"created_at"`
+	ExpiresAt time.Time `json:"expires_at"`
+}
+
+type EffectivePermissions struct {
+	UploadAllowed          bool
+	AllowedExpirySeconds   []int64
+	MaxFileSizeBytes       int64
+	MaxBoxSizeBytes        int64
+	MaxExpirySeconds       int64
+	OneTimeDownloadAllowed bool
+	ZipDownloadAllowed     bool
+	RenewableAllowed       bool
+	RenewOnAccessSeconds   int64
+	RenewOnDownloadSeconds int64
+	AdminAccess            bool
+	AdminUsersView         bool
+	AdminUsersManage       bool
+	AdminSettingsManage    bool
+	AdminBoxesView         bool
+}
+
+type BootstrapResult struct {
+	AdminTag          Tag
+	AdminUser         *User
+	AdminLoginEnabled bool
+}
+
+type Alert struct {
+	ID             string          `json:"id"`
+	Title          string          `json:"title"`
+	Description    string          `json:"description"`
+	Severity       string          `json:"severity"`
+	Status         string          `json:"status"`
+	Code           string          `json:"code"`
+	Trace          string          `json:"trace"`
+	Metadata       json.RawMessage `json:"metadata,omitempty"`
+	CreatedAt      time.Time       `json:"created_at"`
+	UpdatedAt      time.Time       `json:"updated_at"`
+	AcknowledgedAt *time.Time      `json:"acknowledged_at,omitempty"`
+	ClosedAt       *time.Time      `json:"closed_at,omitempty"`
+	CreatedBy      string          `json:"created_by"`
+}
+
+type AlertInput struct {
+	Title       string
+	Description string
+	Severity    string
+	Code        string
+	Trace       string
+	Metadata    json.RawMessage
+	CreatedBy   string
+}
+
+type AlertFilters struct {
+	Query    string
+	Severity string
+	Status   string
+	Group    string
+	Sort     string
+}
+
+type BoxRecord struct {
+	ID                string    `json:"id"`
+	OwnerID           string    `json:"owner_id,omitempty"`
+	OwnerUsername     string    `json:"owner_username,omitempty"`
+	FileNames         []string  `json:"file_names,omitempty"`
+	FileCount         int       `json:"file_count"`
+	TotalSize         int64     `json:"total_size"`
+	CreatedAt         time.Time `json:"created_at"`
+	ExpiresAt         time.Time `json:"expires_at"`
+	PasswordProtected bool      `json:"password_protected"`
+	OneTimeDownload   bool      `json:"one_time_download"`
+	DisableZip        bool      `json:"disable_zip"`
+	RefreshCount      int       `json:"refresh_count"`
+	UpdatedAt         time.Time `json:"updated_at"`
+}
+
+type BoxFilters struct {
+	Query  string
+	Owner  string
+	Status string
+	Flag   string
+	Sort   string
+}
+
+type BoxPageRequest struct {
+	Page     int
+	PageSize int
+}
+
+type BoxRecordPage struct {
+	Rows       []BoxRecord
+	Page       int
+	PageSize   int
+	Total      int
+	HasPrev    bool
+	HasNext    bool
+	PrevPage   int
+	NextPage   int
+	TotalPages int
+}
+
+type UserFilters struct {
+	Query  string
+	Status string
+	Role   string
+	Sort   string
+}
+
+type UserPageRequest struct {
+	Page     int
+	PageSize int
+}
+
+type UserRow struct {
+	ID            string
+	Username      string
+	Email         string
+	Status        string
+	Role          string
+	TagIDs        []string
+	Tags          string
+	Plan          string
+	PolicySummary string
+	BoxCount      int
+	APIKeyCount   int
+	CreatedAt     string
+	LastSeen      string
+	Disabled      bool
+	IsCurrent     bool
+	IsInvite      bool
+}
+
+type UserPage struct {
+	Rows       []UserRow
+	Page       int
+	PageSize   int
+	Total      int
+	HasPrev    bool
+	HasNext    bool
+	PrevPage   int
+	NextPage   int
+	TotalPages int
+	Stats      UserPageStats
+}
+
+type UserPageStats struct {
+	TotalUsers     int
+	ActiveUsers    int
+	PendingInvites int
+	DisabledUsers  int
+}
+
+type CreateUserInput struct {
+	Username    string
+	Email       string
+	Password    string
+	Mode        string
+	Role        string
+	Plan        string
+	AdminNote   string
+	SendSetup   bool
+	ForceChange bool
+}
+
+type CreateUserResult struct {
+	User          User
+	InviteToken   string
+	InviteLink    string
+	IsInvite      bool
+	PasswordSet   string
+	InviteNotSent bool
+}

lib/metastore/permissions.go

@@ -0,0 +1,157 @@
+package metastore
+
+import (
+	"sort"
+
+	"warpbox/lib/config"
+)
+
+func ResolveUserPermissions(cfg *config.Config, user User, tags []Tag) EffectivePermissions {
+	perms := EffectivePermissions{
+		MaxFileSizeBytes:       cfg.DefaultUserMaxFileSizeBytes,
+		MaxBoxSizeBytes:        cfg.DefaultUserMaxBoxSizeBytes,
+		ZipDownloadAllowed:     cfg.ZipDownloadsEnabled,
+		OneTimeDownloadAllowed: cfg.OneTimeDownloadsEnabled,
+	}
+
+	expirySet := make(map[int64]bool)
+	for _, tag := range tags {
+		tagPerms := tag.Permissions
+		perms.UploadAllowed = perms.UploadAllowed || tagPerms.UploadAllowed
+		perms.OneTimeDownloadAllowed = perms.OneTimeDownloadAllowed || tagPerms.OneTimeDownloadAllowed
+		perms.ZipDownloadAllowed = perms.ZipDownloadAllowed || tagPerms.ZipDownloadAllowed
+		perms.RenewableAllowed = perms.RenewableAllowed || tagPerms.RenewableAllowed
+		perms.AdminAccess = perms.AdminAccess || tagPerms.AdminAccess
+		perms.AdminUsersView = perms.AdminUsersView || tagPerms.AdminUsersView
+		perms.AdminUsersManage = perms.AdminUsersManage || tagPerms.AdminUsersManage
+		perms.AdminSettingsManage = perms.AdminSettingsManage || tagPerms.AdminSettingsManage
+		perms.AdminBoxesView = perms.AdminBoxesView || tagPerms.AdminBoxesView
+		perms.RenewOnAccessSeconds = maxInt64(perms.RenewOnAccessSeconds, tagPerms.RenewOnAccessSeconds)
+		perms.RenewOnDownloadSeconds = maxInt64(perms.RenewOnDownloadSeconds, tagPerms.RenewOnDownloadSeconds)
+		if tagPerms.MaxFileSizeBytes != nil {
+			perms.MaxFileSizeBytes = morePermissiveLimit(perms.MaxFileSizeBytes, *tagPerms.MaxFileSizeBytes)
+		}
+		if tagPerms.MaxBoxSizeBytes != nil {
+			perms.MaxBoxSizeBytes = morePermissiveLimit(perms.MaxBoxSizeBytes, *tagPerms.MaxBoxSizeBytes)
+		}
+		for _, seconds := range tagPerms.AllowedExpirySeconds {
+			if seconds >= 0 {
+				expirySet[seconds] = true
+			}
+		}
+	}
+
+	if user.MaxFileSizeBytes != nil {
+		perms.MaxFileSizeBytes = morePermissiveLimit(perms.MaxFileSizeBytes, *user.MaxFileSizeBytes)
+	}
+	if user.MaxBoxSizeBytes != nil {
+		perms.MaxBoxSizeBytes = morePermissiveLimit(perms.MaxBoxSizeBytes, *user.MaxBoxSizeBytes)
+	}
+	if user.MaxExpirySeconds != nil {
+		perms.MaxExpirySeconds = *user.MaxExpirySeconds
+	}
+
+	if o := user.PermOverrides; o != nil {
+		if o.UploadAllowed != nil {
+			perms.UploadAllowed = *o.UploadAllowed
+		}
+		if o.ZipDownloadAllowed != nil {
+			perms.ZipDownloadAllowed = *o.ZipDownloadAllowed
+		}
+		if o.OneTimeDownloadAllowed != nil {
+			perms.OneTimeDownloadAllowed = *o.OneTimeDownloadAllowed
+		}
+		if o.RenewableAllowed != nil {
+			perms.RenewableAllowed = *o.RenewableAllowed
+		}
+	}
+
+	perms.MaxFileSizeBytes = capLimit(perms.MaxFileSizeBytes, cfg.GlobalMaxFileSizeBytes)
+	perms.MaxBoxSizeBytes = capLimit(perms.MaxBoxSizeBytes, cfg.GlobalMaxBoxSizeBytes)
+	perms.AllowedExpirySeconds = sortedExpirySet(expirySet)
+	if !cfg.ZipDownloadsEnabled {
+		perms.ZipDownloadAllowed = false
+	}
+	if !cfg.OneTimeDownloadsEnabled {
+		perms.OneTimeDownloadAllowed = false
+	}
+	return perms
+}
+
+func ResolveGuestPermissions(cfg *config.Config) EffectivePermissions {
+	return EffectivePermissions{
+		UploadAllowed:          cfg.GuestUploadsEnabled,
+		AllowedExpirySeconds:   guestExpirySeconds(cfg),
+		MaxFileSizeBytes:       cfg.GlobalMaxFileSizeBytes,
+		MaxBoxSizeBytes:        cfg.GlobalMaxBoxSizeBytes,
+		MaxExpirySeconds:       cfg.MaxGuestExpirySeconds,
+		OneTimeDownloadAllowed: cfg.OneTimeDownloadsEnabled,
+		ZipDownloadAllowed:     cfg.ZipDownloadsEnabled,
+		RenewableAllowed:       cfg.RenewOnAccessEnabled || cfg.RenewOnDownloadEnabled,
+	}
+}
+
+func morePermissiveLimit(current int64, candidate int64) int64 {
+	if current == 0 || candidate == 0 {
+		return 0
+	}
+	if candidate > current {
+		return candidate
+	}
+	return current
+}
+
+func capLimit(value int64, globalMax int64) int64 {
+	if globalMax == 0 {
+		return value
+	}
+	if value == 0 || value > globalMax {
+		return globalMax
+	}
+	return value
+}
+
+func sortedExpirySet(expirySet map[int64]bool) []int64 {
+	values := make([]int64, 0, len(expirySet))
+	for value := range expirySet {
+		values = append(values, value)
+	}
+	sort.Slice(values, func(i int, j int) bool {
+		return values[i] < values[j]
+	})
+	return values
+}
+
+func guestExpirySeconds(cfg *config.Config) []int64 {
+	values := []int64{}
+	if cfg.DefaultGuestExpirySeconds >= 0 {
+		values = append(values, cfg.DefaultGuestExpirySeconds)
+	}
+	if cfg.MaxGuestExpirySeconds > 0 && cfg.MaxGuestExpirySeconds != cfg.DefaultGuestExpirySeconds {
+		values = append(values, cfg.MaxGuestExpirySeconds)
+	}
+	return uniqueInt64s(values)
+}
+
+func uniqueInt64s(values []int64) []int64 {
+	seen := make(map[int64]bool, len(values))
+	out := make([]int64, 0, len(values))
+	for _, value := range values {
+		if seen[value] {
+			continue
+		}
+		seen[value] = true
+		out = append(out, value)
+	}
+	sort.Slice(out, func(i int, j int) bool {
+		return out[i] < out[j]
+	})
+	return out
+}
+
+func maxInt64(a int64, b int64) int64 {
+	if b > a {
+		return b
+	}
+	return a
+}

lib/metastore/sessions.go

@@ -0,0 +1,79 @@
+package metastore
+
+import (
+	"errors"
+	"fmt"
+	"strings"
+	"time"
+
+	"github.com/dgraph-io/badger/v4"
+
+	"warpbox/lib/helpers"
+)
+
+func (store *Store) CreateSession(userID string, ttl time.Duration) (Session, error) {
+	userID = strings.TrimSpace(userID)
+	if userID == "" {
+		return Session{}, fmt.Errorf("%w: user id cannot be empty", ErrInvalid)
+	}
+	if ttl <= 0 {
+		return Session{}, fmt.Errorf("%w: session ttl must be positive", ErrInvalid)
+	}
+	token, err := helpers.RandomHexID(32)
+	if err != nil {
+		return Session{}, err
+	}
+	csrfToken, err := helpers.RandomHexID(32)
+	if err != nil {
+		return Session{}, err
+	}
+	now := time.Now().UTC()
+	session := Session{
+		Token:     token,
+		CSRFToken: csrfToken,
+		UserID:    userID,
+		CreatedAt: now,
+		ExpiresAt: now.Add(ttl),
+	}
+	err = store.db.Update(func(txn *badger.Txn) error {
+		return putJSON(txn, sessionKey(token), session)
+	})
+	return session, err
+}
+
+func (store *Store) GetSession(token string) (Session, bool, error) {
+	token = strings.TrimSpace(token)
+	if token == "" {
+		return Session{}, false, nil
+	}
+
+	var session Session
+	err := store.db.View(func(txn *badger.Txn) error {
+		return getJSON(txn, sessionKey(token), &session)
+	})
+	if errors.Is(err, ErrNotFound) {
+		return Session{}, false, nil
+	}
+	if err != nil {
+		return Session{}, false, err
+	}
+	if time.Now().UTC().After(session.ExpiresAt) {
+		_ = store.DeleteSession(token)
+		return Session{}, false, nil
+	}
+	return session, true, nil
+}
+
+func (store *Store) DeleteSession(token string) error {
+	return store.db.Update(func(txn *badger.Txn) error {
+		err := txn.Delete(sessionKey(token))
+		if errors.Is(err, badger.ErrKeyNotFound) {
+			return nil
+		}
+		return err
+	})
+}
+
+func sessionKey(token string) []byte {
+	return []byte("session/" + strings.TrimSpace(token))
+}

lib/metastore/store.go

@@ -0,0 +1,669 @@
+package metastore
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"sort"
+	"strings"
+	"time"
+
+	"github.com/dgraph-io/badger/v4"
+	"golang.org/x/crypto/bcrypt"
+
+	"warpbox/lib/helpers"
+)
+
+var (
+	ErrNotFound  = errors.New("not found")
+	ErrDuplicate = errors.New("duplicate")
+	ErrInvalid   = errors.New("invalid")
+)
+
+type Store struct {
+	db *badger.DB
+}
+
+func Open(path string) (*Store, error) {
+	opts := badger.DefaultOptions(path).WithLogger(nil)
+	db, err := badger.Open(opts)
+	if err != nil {
+		return nil, err
+	}
+	return &Store{db: db}, nil
+}
+
+func (store *Store) Close() error {
+	if store == nil || store.db == nil {
+		return nil
+	}
+	return store.db.Close()
+}
+
+func (store *Store) SetSetting(name string, value string) error {
+	name = strings.TrimSpace(name)
+	if name == "" {
+		return fmt.Errorf("%w: setting name cannot be empty", ErrInvalid)
+	}
+
+	return store.db.Update(func(txn *badger.Txn) error {
+		return txn.Set(settingKey(name), []byte(value))
+	})
+}
+
+func (store *Store) DeleteSetting(name string) error {
+	return store.db.Update(func(txn *badger.Txn) error {
+		return txn.Delete(settingKey(name))
+	})
+}
+
+func (store *Store) GetSetting(name string) (string, bool, error) {
+	var value string
+	err := store.db.View(func(txn *badger.Txn) error {
+		item, err := txn.Get(settingKey(name))
+		if errors.Is(err, badger.ErrKeyNotFound) {
+			return ErrNotFound
+		}
+		if err != nil {
+			return err
+		}
+		return item.Value(func(data []byte) error {
+			value = string(data)
+			return nil
+		})
+	})
+	if errors.Is(err, ErrNotFound) {
+		return "", false, nil
+	}
+	return value, err == nil, err
+}
+
+func (store *Store) ListSettings() (map[string]string, error) {
+	settings := make(map[string]string)
+	err := store.db.View(func(txn *badger.Txn) error {
+		opts := badger.DefaultIteratorOptions
+		opts.Prefix = []byte("setting/")
+		it := txn.NewIterator(opts)
+		defer it.Close()
+
+		for it.Rewind(); it.Valid(); it.Next() {
+			item := it.Item()
+			name := strings.TrimPrefix(string(item.Key()), "setting/")
+			if err := item.Value(func(data []byte) error {
+				settings[name] = string(data)
+				return nil
+			}); err != nil {
+				return err
+			}
+		}
+		return nil
+	})
+	return settings, err
+}
+
+func HashPassword(password string) (string, error) {
+	if strings.TrimSpace(password) == "" {
+		return "", fmt.Errorf("%w: password cannot be empty", ErrInvalid)
+	}
+	hash, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
+	if err != nil {
+		return "", err
+	}
+	return string(hash), nil
+}
+
+func VerifyPassword(hash string, password string) bool {
+	if hash == "" || password == "" {
+		return false
+	}
+	return bcrypt.CompareHashAndPassword([]byte(hash), []byte(password)) == nil
+}
+
+func (store *Store) CreateUserWithPassword(username string, email string, password string, tagIDs []string) (User, error) {
+	hash, err := HashPassword(password)
+	if err != nil {
+		return User{}, err
+	}
+	user := User{
+		Username:     username,
+		Email:        email,
+		PasswordHash: hash,
+		TagIDs:       uniqueStrings(tagIDs),
+	}
+	if err := store.CreateUser(&user); err != nil {
+		return User{}, err
+	}
+	return user, nil
+}
+
+func (store *Store) CreateUser(user *User) error {
+	if user == nil {
+		return fmt.Errorf("%w: user cannot be nil", ErrInvalid)
+	}
+	username := strings.TrimSpace(user.Username)
+	if username == "" {
+		return fmt.Errorf("%w: username cannot be empty", ErrInvalid)
+	}
+	email := strings.TrimSpace(user.Email)
+	if user.PasswordHash == "" {
+		return fmt.Errorf("%w: password hash cannot be empty", ErrInvalid)
+	}
+
+	now := time.Now().UTC()
+	if user.ID == "" {
+		id, err := helpers.RandomHexID(16)
+		if err != nil {
+			return err
+		}
+		user.ID = id
+	}
+	user.Username = username
+	user.Email = email
+	user.TagIDs = uniqueStrings(user.TagIDs)
+	user.CreatedAt = now
+	user.UpdatedAt = now
+
+	return store.db.Update(func(txn *badger.Txn) error {
+		if exists, err := keyExists(txn, usernameKey(username)); err != nil || exists {
+			if err != nil {
+				return err
+			}
+			return fmt.Errorf("%w: username already exists", ErrDuplicate)
+		}
+		if email != "" {
+			if exists, err := keyExists(txn, emailKey(email)); err != nil || exists {
+				if err != nil {
+					return err
+				}
+				return fmt.Errorf("%w: email already exists", ErrDuplicate)
+			}
+		}
+		if err := putJSON(txn, userKey(user.ID), user); err != nil {
+			return err
+		}
+		if err := txn.Set(usernameKey(username), []byte(user.ID)); err != nil {
+			return err
+		}
+		if email != "" {
+			return txn.Set(emailKey(email), []byte(user.ID))
+		}
+		return nil
+	})
+}
+
+func (store *Store) UpdateUser(user User) error {
+	if strings.TrimSpace(user.ID) == "" {
+		return fmt.Errorf("%w: user id cannot be empty", ErrInvalid)
+	}
+	user.Username = strings.TrimSpace(user.Username)
+	user.Email = strings.TrimSpace(user.Email)
+	if user.Username == "" {
+		return fmt.Errorf("%w: username cannot be empty", ErrInvalid)
+	}
+	user.TagIDs = uniqueStrings(user.TagIDs)
+	user.UpdatedAt = time.Now().UTC()
+
+	return store.db.Update(func(txn *badger.Txn) error {
+		var existing User
+		if err := getJSON(txn, userKey(user.ID), &existing); err != nil {
+			return err
+		}
+
+		oldUsername := normalizeIndex(existing.Username)
+		newUsername := normalizeIndex(user.Username)
+		if oldUsername != newUsername {
+			if exists, err := keyExists(txn, usernameKey(user.Username)); err != nil || exists {
+				if err != nil {
+					return err
+				}
+				return fmt.Errorf("%w: username already exists", ErrDuplicate)
+			}
+			if err := txn.Delete(usernameKey(existing.Username)); err != nil && !errors.Is(err, badger.ErrKeyNotFound) {
+				return err
+			}
+			if err := txn.Set(usernameKey(user.Username), []byte(user.ID)); err != nil {
+				return err
+			}
+		}
+
+		oldEmail := normalizeIndex(existing.Email)
+		newEmail := normalizeIndex(user.Email)
+		if oldEmail != newEmail {
+			if newEmail != "" {
+				if exists, err := keyExists(txn, emailKey(user.Email)); err != nil || exists {
+					if err != nil {
+						return err
+					}
+					return fmt.Errorf("%w: email already exists", ErrDuplicate)
+				}
+				if err := txn.Set(emailKey(user.Email), []byte(user.ID)); err != nil {
+					return err
+				}
+			}
+			if oldEmail != "" {
+				if err := txn.Delete(emailKey(existing.Email)); err != nil && !errors.Is(err, badger.ErrKeyNotFound) {
+					return err
+				}
+			}
+		}
+
+		return putJSON(txn, userKey(user.ID), user)
+	})
+}
+
+func (store *Store) GetUser(id string) (User, bool, error) {
+	var user User
+	err := store.db.View(func(txn *badger.Txn) error {
+		return getJSON(txn, userKey(id), &user)
+	})
+	if errors.Is(err, ErrNotFound) {
+		return User{}, false, nil
+	}
+	return user, err == nil, err
+}
+
+func (store *Store) GetUserByUsername(username string) (User, bool, error) {
+	return store.getUserByIndex(usernameKey(username))
+}
+
+func (store *Store) GetUserByEmail(email string) (User, bool, error) {
+	return store.getUserByIndex(emailKey(email))
+}
+
+func (store *Store) ListUsers() ([]User, error) {
+	users := []User{}
+	err := store.db.View(func(txn *badger.Txn) error {
+		opts := badger.DefaultIteratorOptions
+		opts.Prefix = []byte("user/")
+		it := txn.NewIterator(opts)
+		defer it.Close()
+
+		for it.Rewind(); it.Valid(); it.Next() {
+			var user User
+			if err := it.Item().Value(func(data []byte) error {
+				return json.Unmarshal(data, &user)
+			}); err != nil {
+				return err
+			}
+			users = append(users, user)
+		}
+		return nil
+	})
+	return users, err
+}
+
+func (store *Store) ListUsersPaginated(filters UserFilters, pageReq UserPageRequest) (UserPage, error) {
+	users, err := store.ListUsers()
+	if err != nil {
+		return UserPage{}, err
+	}
+
+	tags, err := store.ListTags()
+	if err != nil {
+		return UserPage{}, err
+	}
+	tagMap := make(map[string]Tag, len(tags))
+	for _, tag := range tags {
+		tagMap[tag.ID] = tag
+	}
+
+	query := strings.ToLower(strings.TrimSpace(filters.Query))
+	filtered := make([]User, 0, len(users))
+	for _, user := range users {
+		if query != "" {
+			if !strings.Contains(strings.ToLower(user.Username), query) &&
+				!strings.Contains(strings.ToLower(user.Email), query) {
+				continue
+			}
+		}
+		switch filters.Status {
+		case "active":
+			if user.Disabled || strings.HasPrefix(user.PasswordHash, "invite/") {
+				continue
+			}
+		case "disabled":
+			if !user.Disabled || strings.HasPrefix(user.PasswordHash, "invite/") {
+				continue
+			}
+		case "pending":
+			if !strings.HasPrefix(user.PasswordHash, "invite/") {
+				continue
+			}
+		}
+		if filters.Role != "" && filters.Role != "all" {
+			match := false
+			for _, tagID := range user.TagIDs {
+				if tag, ok := tagMap[tagID]; ok && strings.EqualFold(tag.Name, filters.Role) {
+					match = true
+					break
+				}
+			}
+			if !match {
+				continue
+			}
+		}
+		filtered = append(filtered, user)
+	}
+
+	switch filters.Sort {
+	case "createdDesc":
+		sort.Slice(filtered, func(i, j int) bool {
+			return filtered[i].CreatedAt.After(filtered[j].CreatedAt)
+		})
+	case "username":
+		fallthrough
+	default:
+		sort.Slice(filtered, func(i, j int) bool {
+			return strings.ToLower(filtered[i].Username) < strings.ToLower(filtered[j].Username)
+		})
+	}
+
+	total := len(filtered)
+	pageSize := pageReq.PageSize
+	if pageSize <= 0 {
+		pageSize = 12
+	}
+	if pageSize > 100 {
+		pageSize = 100
+	}
+	totalPages := (total + pageSize - 1) / pageSize
+	if totalPages < 1 {
+		totalPages = 1
+	}
+	page := pageReq.Page
+	if page < 1 {
+		page = 1
+	}
+	if page > totalPages {
+		page = totalPages
+	}
+
+	start := (page - 1) * pageSize
+	end := start + pageSize
+	if end > total {
+		end = total
+	}
+	pageUsers := filtered[start:end]
+
+	stats := UserPageStats{TotalUsers: len(users)}
+	for _, user := range users {
+		if strings.HasPrefix(user.PasswordHash, "invite/") {
+			stats.PendingInvites++
+		} else if user.Disabled {
+			stats.DisabledUsers++
+		} else {
+			stats.ActiveUsers++
+		}
+	}
+
+	rows := make([]UserRow, len(pageUsers))
+	for i, user := range pageUsers {
+		role := ""
+		tagNames := make([]string, 0, len(user.TagIDs))
+		for _, tagID := range user.TagIDs {
+			if tag, ok := tagMap[tagID]; ok {
+				tagNames = append(tagNames, tag.Name)
+				if tag.Permissions.AdminAccess && role == "" {
+					role = tag.Name
+				} else if role == "" {
+					role = tag.Name
+				}
+			}
+		}
+		if role == "" {
+			role = "user"
+		}
+
+		plan := "standard"
+		for _, tagID := range user.TagIDs {
+			if tag, ok := tagMap[tagID]; ok && strings.EqualFold(tag.Name, "admin") {
+				plan = "unlimited"
+				break
+			}
+		}
+
+		isInvite := strings.HasPrefix(user.PasswordHash, "invite/")
+		status := userStatus(user.Disabled)
+		if isInvite {
+			status = "pending"
+		}
+
+		rows[i] = UserRow{
+			ID:            user.ID,
+			Username:      user.Username,
+			Email:         user.Email,
+			Status:        status,
+			Role:          role,
+			TagIDs:        user.TagIDs,
+			Tags:          strings.Join(tagNames, ", "),
+			Plan:          plan,
+			PolicySummary: "system default",
+			BoxCount:      0,
+			APIKeyCount:   0,
+			CreatedAt:     formatTime(user.CreatedAt),
+			LastSeen:      "-",
+			Disabled:      user.Disabled,
+			IsCurrent:     false,
+			IsInvite:      isInvite,
+		}
+	}
+
+	return UserPage{
+		Rows:       rows,
+		Page:       page,
+		PageSize:   pageSize,
+		Total:      total,
+		HasPrev:    page > 1,
+		HasNext:    page < totalPages,
+		PrevPage:   page - 1,
+		NextPage:   page + 1,
+		TotalPages: totalPages,
+		Stats:      stats,
+	}, nil
+}
+
+func userStatus(disabled bool) string {
+	if disabled {
+		return "disabled"
+	}
+	return "active"
+}
+
+func formatTime(t time.Time) string {
+	if t.IsZero() {
+		return "-"
+	}
+	return t.UTC().Format("2006-01-02 15:04")
+}
+
+func (store *Store) BulkSetUsersDisabled(ids []string, disabled bool) error {
+	return store.db.Update(func(txn *badger.Txn) error {
+		for _, id := range ids {
+			var user User
+			if err := getJSON(txn, userKey(id), &user); err != nil {
+				if errors.Is(err, ErrNotFound) {
+					continue
+				}
+				return err
+			}
+			user.Disabled = disabled
+			user.UpdatedAt = time.Now().UTC()
+			if err := putJSON(txn, userKey(id), user); err != nil {
+				return err
+			}
+		}
+		return nil
+	})
+}
+
+func (store *Store) RevokeUserSessions(userID string) error {
+	tokens, err := store.sessionTokensForUser(userID)
+	if err != nil {
+		return err
+	}
+	return store.db.Update(func(txn *badger.Txn) error {
+		for _, token := range tokens {
+			if err := txn.Delete(sessionKey(token)); err != nil && !errors.Is(err, badger.ErrKeyNotFound) {
+				return err
+			}
+		}
+		return nil
+	})
+}
+
+func (store *Store) BulkRevokeUserSessions(ids []string) error {
+	for _, id := range ids {
+		if err := store.RevokeUserSessions(id); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (store *Store) sessionTokensForUser(userID string) ([]string, error) {
+	tokens := []string{}
+	err := store.db.View(func(txn *badger.Txn) error {
+		opts := badger.DefaultIteratorOptions
+		opts.Prefix = []byte("session/")
+		it := txn.NewIterator(opts)
+		defer it.Close()
+		for it.Rewind(); it.Valid(); it.Next() {
+			var session Session
+			if err := it.Item().Value(func(data []byte) error {
+				return json.Unmarshal(data, &session)
+			}); err != nil {
+				continue
+			}
+			if session.UserID == userID {
+				tokens = append(tokens, session.Token)
+			}
+		}
+		return nil
+	})
+	return tokens, err
+}
+
+func (store *Store) CountAdminUsers(adminTagID string) (int, error) {
+	users, err := store.ListUsers()
+	if err != nil {
+		return 0, err
+	}
+	count := 0
+	for _, user := range users {
+		if user.Disabled {
+			continue
+		}
+		for _, tagID := range user.TagIDs {
+			if tagID == adminTagID {
+				count++
+				break
+			}
+		}
+	}
+	return count, nil
+}
+
+func (store *Store) CreateUserWithoutPassword(username string, email string, tagIDs []string) (User, error) {
+	hash, err := helpers.RandomHexID(32)
+	if err != nil {
+		return User{}, err
+	}
+	user := User{
+		Username:     username,
+		Email:        email,
+		PasswordHash: "invite/" + hash,
+		TagIDs:       uniqueStrings(tagIDs),
+		Disabled:     true,
+	}
+	if err := store.CreateUser(&user); err != nil {
+		return User{}, err
+	}
+	return user, nil
+}
+
+func (store *Store) getUserByIndex(key []byte) (User, bool, error) {
+	var id string
+	err := store.db.View(func(txn *badger.Txn) error {
+		item, err := txn.Get(key)
+		if errors.Is(err, badger.ErrKeyNotFound) {
+			return ErrNotFound
+		}
+		if err != nil {
+			return err
+		}
+		return item.Value(func(data []byte) error {
+			id = string(data)
+			return nil
+		})
+	})
+	if errors.Is(err, ErrNotFound) {
+		return User{}, false, nil
+	}
+	if err != nil {
+		return User{}, false, err
+	}
+	return store.GetUser(id)
+}
+
+func putJSON(txn *badger.Txn, key []byte, value any) error {
+	data, err := json.Marshal(value)
+	if err != nil {
+		return err
+	}
+	return txn.Set(key, data)
+}
+
+func getJSON(txn *badger.Txn, key []byte, value any) error {
+	item, err := txn.Get(key)
+	if errors.Is(err, badger.ErrKeyNotFound) {
+		return ErrNotFound
+	}
+	if err != nil {
+		return err
+	}
+	return item.Value(func(data []byte) error {
+		return json.Unmarshal(data, value)
+	})
+}
+
+func keyExists(txn *badger.Txn, key []byte) (bool, error) {
+	_, err := txn.Get(key)
+	if errors.Is(err, badger.ErrKeyNotFound) {
+		return false, nil
+	}
+	return err == nil, err
+}
+
+func settingKey(name string) []byte {
+	return []byte("setting/" + strings.TrimSpace(name))
+}
+
+func userKey(id string) []byte {
+	return []byte("user/" + strings.TrimSpace(id))
+}
+
+func usernameKey(username string) []byte {
+	return []byte("user_by_name/" + normalizeIndex(username))
+}
+
+func emailKey(email string) []byte {
+	return []byte("user_by_email/" + normalizeIndex(email))
+}
+
+func normalizeIndex(value string) string {
+	return strings.ToLower(strings.TrimSpace(value))
+}
+
+func uniqueStrings(values []string) []string {
+	seen := make(map[string]bool, len(values))
+	out := make([]string, 0, len(values))
+	for _, value := range values {
+		value = strings.TrimSpace(value)
+		if value == "" || seen[value] {
+			continue
+		}
+		seen[value] = true
+		out = append(out, value)
+	}
+	return out
+}

lib/metastore/tags.go

@@ -0,0 +1,221 @@
+package metastore
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"strings"
+	"time"
+
+	"github.com/dgraph-io/badger/v4"
+
+	"warpbox/lib/helpers"
+)
+
+func AdminPermissions() TagPermissions {
+	unlimited := int64(0)
+	return TagPermissions{
+		UploadAllowed:          true,
+		MaxFileSizeBytes:       &unlimited,
+		MaxBoxSizeBytes:        &unlimited,
+		OneTimeDownloadAllowed: true,
+		ZipDownloadAllowed:     true,
+		RenewableAllowed:       true,
+		AdminAccess:            true,
+		AdminUsersView:         true,
+		AdminUsersManage:       true,
+		AdminSettingsManage:    true,
+		AdminBoxesView:         true,
+	}
+}
+
+func (store *Store) EnsureAdminTag() (Tag, error) {
+	tag, ok, err := store.GetTagByName(AdminTagName)
+	if err != nil {
+		return Tag{}, err
+	}
+	if ok {
+		tag.Protected = true
+		tag.Permissions = AdminPermissions()
+		tag.Description = "Built-in administrator permissions"
+		if err := store.UpdateTag(tag); err != nil {
+			return Tag{}, err
+		}
+		return tag, nil
+	}
+
+	tag = Tag{
+		Name:        AdminTagName,
+		Description: "Built-in administrator permissions",
+		Protected:   true,
+		Permissions: AdminPermissions(),
+	}
+	if err := store.CreateTag(&tag); err != nil {
+		return Tag{}, err
+	}
+	return tag, nil
+}
+
+func (store *Store) CreateTag(tag *Tag) error {
+	if tag == nil {
+		return fmt.Errorf("%w: tag cannot be nil", ErrInvalid)
+	}
+	tag.Name = strings.TrimSpace(tag.Name)
+	tag.Description = strings.TrimSpace(tag.Description)
+	if tag.Name == "" {
+		return fmt.Errorf("%w: tag name cannot be empty", ErrInvalid)
+	}
+
+	now := time.Now().UTC()
+	if tag.ID == "" {
+		id, err := helpers.RandomHexID(16)
+		if err != nil {
+			return err
+		}
+		tag.ID = id
+	}
+	tag.CreatedAt = now
+	tag.UpdatedAt = now
+	normalizeTagPermissions(&tag.Permissions)
+
+	return store.db.Update(func(txn *badger.Txn) error {
+		if exists, err := keyExists(txn, tagNameKey(tag.Name)); err != nil || exists {
+			if err != nil {
+				return err
+			}
+			return fmt.Errorf("%w: tag name already exists", ErrDuplicate)
+		}
+		if err := putJSON(txn, tagKey(tag.ID), tag); err != nil {
+			return err
+		}
+		return txn.Set(tagNameKey(tag.Name), []byte(tag.ID))
+	})
+}
+
+func (store *Store) UpdateTag(tag Tag) error {
+	tag.Name = strings.TrimSpace(tag.Name)
+	tag.Description = strings.TrimSpace(tag.Description)
+	if tag.ID == "" {
+		return fmt.Errorf("%w: tag id cannot be empty", ErrInvalid)
+	}
+	if tag.Name == "" {
+		return fmt.Errorf("%w: tag name cannot be empty", ErrInvalid)
+	}
+	tag.UpdatedAt = time.Now().UTC()
+	normalizeTagPermissions(&tag.Permissions)
+
+	return store.db.Update(func(txn *badger.Txn) error {
+		var existing Tag
+		if err := getJSON(txn, tagKey(tag.ID), &existing); err != nil {
+			return err
+		}
+		if normalizeIndex(existing.Name) != normalizeIndex(tag.Name) {
+			if exists, err := keyExists(txn, tagNameKey(tag.Name)); err != nil || exists {
+				if err != nil {
+					return err
+				}
+				return fmt.Errorf("%w: tag name already exists", ErrDuplicate)
+			}
+			if err := txn.Delete(tagNameKey(existing.Name)); err != nil && !errors.Is(err, badger.ErrKeyNotFound) {
+				return err
+			}
+			if err := txn.Set(tagNameKey(tag.Name), []byte(tag.ID)); err != nil {
+				return err
+			}
+		}
+		if existing.Protected {
+			tag.Protected = true
+		}
+		if tag.Name == AdminTagName {
+			tag.Protected = true
+			tag.Permissions = AdminPermissions()
+		}
+		return putJSON(txn, tagKey(tag.ID), tag)
+	})
+}
+
+func (store *Store) GetTag(id string) (Tag, bool, error) {
+	var tag Tag
+	err := store.db.View(func(txn *badger.Txn) error {
+		return getJSON(txn, tagKey(id), &tag)
+	})
+	if errors.Is(err, ErrNotFound) {
+		return Tag{}, false, nil
+	}
+	return tag, err == nil, err
+}
+
+func (store *Store) GetTagByName(name string) (Tag, bool, error) {
+	var id string
+	err := store.db.View(func(txn *badger.Txn) error {
+		item, err := txn.Get(tagNameKey(name))
+		if errors.Is(err, badger.ErrKeyNotFound) {
+			return ErrNotFound
+		}
+		if err != nil {
+			return err
+		}
+		return item.Value(func(data []byte) error {
+			id = string(data)
+			return nil
+		})
+	})
+	if errors.Is(err, ErrNotFound) {
+		return Tag{}, false, nil
+	}
+	if err != nil {
+		return Tag{}, false, err
+	}
+	return store.GetTag(id)
+}
+
+func (store *Store) ListTags() ([]Tag, error) {
+	tags := []Tag{}
+	err := store.db.View(func(txn *badger.Txn) error {
+		opts := badger.DefaultIteratorOptions
+		opts.Prefix = []byte("tag/")
+		it := txn.NewIterator(opts)
+		defer it.Close()
+
+		for it.Rewind(); it.Valid(); it.Next() {
+			var tag Tag
+			if err := it.Item().Value(func(data []byte) error {
+				return json.Unmarshal(data, &tag)
+			}); err != nil {
+				return err
+			}
+			tags = append(tags, tag)
+		}
+		return nil
+	})
+	return tags, err
+}
+
+func (store *Store) TagsByID(ids []string) ([]Tag, error) {
+	tags := make([]Tag, 0, len(ids))
+	for _, id := range ids {
+		tag, ok, err := store.GetTag(id)
+		if err != nil {
+			return nil, err
+		}
+		if ok {
+			tags = append(tags, tag)
+		}
+	}
+	return tags, nil
+}
+
+func normalizeTagPermissions(perms *TagPermissions) {
+	if perms == nil {
+		return
+	}
+	perms.AllowedExpirySeconds = uniqueInt64s(perms.AllowedExpirySeconds)
+}
+
+func tagKey(id string) []byte {
+	return []byte("tag/" + strings.TrimSpace(id))
+}
+
+func tagNameKey(name string) []byte {
+	return []byte("tag_by_name/" + normalizeIndex(name))
+}

lib/models/models.go

@@ -0,0 +1,94 @@
+package models
+
+import "time"
+
+const (
+	FileStatusFailed = "failed"
+	FileStatusReady  = "complete"
+	FileStatusWait   = "pending"
+	FileStatusWork   = "uploading"
+)
+
+const (
+	ThumbnailStatusFailed      = "failed"
+	ThumbnailStatusProcessing  = "processing"
+	ThumbnailStatusReady       = "ready"
+	ThumbnailStatusUnsupported = "unsupported"
+)
+
+type RetentionOption struct {
+	Key     string `json:"key"`
+	Label   string `json:"label"`
+	Seconds int64  `json:"seconds"`
+}
+
+type BoxFile struct {
+	ID              string  `json:"id"`
+	Name            string  `json:"name"`
+	Size            int64   `json:"size"`
+	SizeLabel       string  `json:"size_label"`
+	MimeType        string  `json:"mime_type"`
+	Status          string  `json:"status"`
+	StatusLabel     string  `json:"status_label"`
+	Title           string  `json:"title"`
+	IconPath        string  `json:"icon_path"`
+	ThumbnailPath   *string `json:"thumbnail_path"`
+	ThumbnailStatus string  `json:"thumbnail_status,omitempty"`
+	ThumbnailURL    string  `json:"-"`
+	DownloadPath    string  `json:"download_path"`
+	UploadPath      string  `json:"upload_path"`
+	IsComplete      bool    `json:"is_complete"`
+}
+
+type BoxManifest struct {
+	Files           []BoxFile     `json:"files"`
+	OwnerID         string        `json:"owner_id,omitempty"`
+	OwnerUsername   string        `json:"owner_username,omitempty"`
+	Activity        []BoxActivity `json:"activity,omitempty"`
+	CreatedAt       time.Time     `json:"created_at"`
+	ExpiresAt       time.Time     `json:"expires_at"`
+	RetentionKey    string        `json:"retention_key"`
+	RetentionLabel  string        `json:"retention_label"`
+	RetentionSecs   int64         `json:"retention_seconds"`
+	PasswordSalt    string        `json:"password_salt,omitempty"`
+	PasswordHash    string        `json:"password_hash,omitempty"`
+	PasswordHashAlg string        `json:"password_hash_alg,omitempty"`
+	AuthToken       string        `json:"auth_token,omitempty"`
+	DisableZip      bool          `json:"disable_zip,omitempty"`
+	OneTimeDownload bool          `json:"one_time_download,omitempty"`
+	Consumed        bool          `json:"consumed,omitempty"`
+}
+
+type BoxActivity struct {
+	At      time.Time `json:"at"`
+	Message string    `json:"message"`
+	Actor   string    `json:"actor,omitempty"`
+}
+
+type BoxSummary struct {
+	ID                string
+	FileCount         int
+	TotalSize         int64
+	TotalSizeLabel    string
+	CreatedAt         time.Time
+	ExpiresAt         time.Time
+	Expired           bool
+	OneTimeDownload   bool
+	PasswordProtected bool
+}
+
+type CreateBoxRequest struct {
+	Files        []CreateBoxFileRequest `json:"files"`
+	RetentionKey string                 `json:"retention_key"`
+	Password     string                 `json:"password"`
+	AllowZip     *bool                  `json:"allow_zip"`
+}
+
+type CreateBoxFileRequest struct {
+	Name string `json:"name"`
+	Size int64  `json:"size"`
+}
+
+type UpdateFileStatusRequest struct {
+	Status string `json:"status"`
+}

lib/routing/routes.go

@@ -0,0 +1,39 @@
+package routing
+
+import "github.com/gin-gonic/gin"
+
+type Handlers struct {
+	Index              gin.HandlerFunc
+	ShowBox            gin.HandlerFunc
+	BoxLogin           gin.HandlerFunc
+	BoxLoginPost       gin.HandlerFunc
+	BoxStatus          gin.HandlerFunc
+	DownloadBox        gin.HandlerFunc
+	DownloadFile       gin.HandlerFunc
+	DownloadThumbnail  gin.HandlerFunc
+	CreateBox          gin.HandlerFunc
+	ManifestFileUpload gin.HandlerFunc
+	FileStatusUpdate   gin.HandlerFunc
+	DirectBoxUpload    gin.HandlerFunc
+	LegacyUpload       gin.HandlerFunc
+}
+
+func Register(router *gin.Engine, handlers Handlers) {
+	router.GET("/", handlers.Index)
+
+	router.GET("/box/:id", handlers.ShowBox)
+	router.GET("/box/:id/login", handlers.BoxLogin)
+	router.GET("/box/:id/status", handlers.BoxStatus)
+	router.GET("/box/:id/download", handlers.DownloadBox)
+	router.GET("/box/:id/files/:filename", handlers.DownloadFile)
+	router.GET("/box/:id/thumbnails/:file_id", handlers.DownloadThumbnail)
+
+	router.POST("/box", handlers.CreateBox)
+	router.POST("/box/:id/login", handlers.BoxLoginPost)
+	router.POST("/box/:id/files/:file_id/upload", handlers.ManifestFileUpload)
+	router.POST("/box/:id/files/:file_id/status", handlers.FileStatusUpdate)
+
+	// Legacy upload routes are kept for compatibility with older clients.
+	router.POST("/box/:id/upload", handlers.DirectBoxUpload)
+	router.POST("/upload", handlers.LegacyUpload)
+}

lib/server/account_alerts.go

@@ -0,0 +1,386 @@
+package server
+
+import (
+	"encoding/json"
+	"fmt"
+	"log"
+	"net/http"
+	"strings"
+
+	"github.com/gin-gonic/gin"
+
+	"warpbox/lib/metastore"
+)
+
+type AlertPageView struct {
+	PageTitle       string
+	WindowTitle     string
+	WindowIcon      string
+	PageScripts     []string
+	AccountNav      AccountNavView
+	CSRFToken       string
+	Filters         AlertFiltersView
+	Stats           AlertStatsView
+	Alerts          []AlertRowView
+	SelectedAlert   *AlertRowView
+	Groups          []string
+	CanManageAlerts bool
+}
+
+type AlertFiltersView struct {
+	Query    string
+	Severity string
+	Status   string
+	Group    string
+	Sort     string
+}
+
+type AlertStatsView struct {
+	Open         int
+	Acknowledged int
+	Closed       int
+	High         int
+	Medium       int
+	Low          int
+}
+
+type AlertRowView struct {
+	ID             string
+	Title          string
+	Description    string
+	Severity       string
+	Status         string
+	Code           string
+	Trace          string
+	Group          string
+	MetadataPretty string
+	CreatedAt      string
+	UpdatedAt      string
+}
+
+func (app *App) handleAccountAlerts(ctx *gin.Context) {
+	actor, ok := currentAccountUser(ctx)
+	if !ok {
+		ctx.Redirect(http.StatusSeeOther, "/account/login")
+		return
+	}
+	page, err := app.ListAlerts(ctx, actor, accountAlertFiltersFromRequest(ctx))
+	if err != nil {
+		ctx.String(http.StatusForbidden, "Permission denied")
+		return
+	}
+	ctx.HTML(http.StatusOK, "account_alerts.html", page)
+}
+
+func (app *App) handleAccountAlertAcknowledge(ctx *gin.Context) {
+	app.handleAccountAlertAction(ctx, func(actor metastore.User, id string) error {
+		return app.AcknowledgeAlert(ctx, actor, id)
+	})
+}
+
+func (app *App) handleAccountAlertClose(ctx *gin.Context) {
+	app.handleAccountAlertAction(ctx, func(actor metastore.User, id string) error {
+		return app.CloseAlert(ctx, actor, id)
+	})
+}
+
+func (app *App) handleAccountAlertBulkAcknowledge(ctx *gin.Context) {
+	app.handleAccountAlertBulkAction(ctx, func(actor metastore.User, ids []string) error {
+		return app.BulkAcknowledgeAlerts(ctx, actor, ids)
+	})
+}
+
+func (app *App) handleAccountAlertBulkClose(ctx *gin.Context) {
+	app.handleAccountAlertBulkAction(ctx, func(actor metastore.User, ids []string) error {
+		return app.BulkCloseAlerts(ctx, actor, ids)
+	})
+}
+
+func (app *App) handleAccountAlertsExport(ctx *gin.Context) {
+	actor, ok := currentAccountUser(ctx)
+	if !ok {
+		ctx.Redirect(http.StatusSeeOther, "/account/login")
+		return
+	}
+	page, err := app.ListAlerts(ctx, actor, accountAlertFiltersFromRequest(ctx))
+	if err != nil {
+		ctx.String(http.StatusForbidden, "Permission denied")
+		return
+	}
+	ctx.Header("Content-Disposition", `attachment; filename="warpbox-alerts.json"`)
+	ctx.JSON(http.StatusOK, gin.H{"alerts": page.Alerts, "filters": page.Filters, "stats": page.Stats})
+}
+
+func (app *App) handleAccountAlertAction(ctx *gin.Context, action func(metastore.User, string) error) {
+	actor, ok := currentAccountUser(ctx)
+	if !ok {
+		ctx.Redirect(http.StatusSeeOther, "/account/login")
+		return
+	}
+	if err := action(actor, ctx.Param("id")); err != nil {
+		ctx.String(http.StatusForbidden, err.Error())
+		return
+	}
+	ctx.Redirect(http.StatusSeeOther, "/account/alerts")
+}
+
+func (app *App) handleAccountAlertBulkAction(ctx *gin.Context, action func(metastore.User, []string) error) {
+	actor, ok := currentAccountUser(ctx)
+	if !ok {
+		ctx.Redirect(http.StatusSeeOther, "/account/login")
+		return
+	}
+	if err := action(actor, ctx.PostFormArray("alert_ids")); err != nil {
+		ctx.String(http.StatusForbidden, err.Error())
+		return
+	}
+	ctx.Redirect(http.StatusSeeOther, "/account/alerts")
+}
+
+func (app *App) CreateAlert(ctx *gin.Context, actor metastore.User, input metastore.AlertInput) (metastore.Alert, error) {
+	if err := app.requireAlertManage(ctx); err != nil {
+		return metastore.Alert{}, err
+	}
+	if input.CreatedBy == "" {
+		input.CreatedBy = actor.Username
+	}
+	return app.store.CreateAlert(input)
+}
+
+func (app *App) ListAlerts(ctx *gin.Context, actor metastore.User, filters metastore.AlertFilters) (AlertPageView, error) {
+	if err := app.requireAlertView(ctx); err != nil {
+		return AlertPageView{}, err
+	}
+	alerts, err := app.store.ListAlerts(filters)
+	if err != nil {
+		return AlertPageView{}, err
+	}
+	rows := make([]AlertRowView, 0, len(alerts))
+	stats := AlertStatsView{}
+	groupSet := map[string]bool{}
+	for _, alert := range alerts {
+		row := alertRowView(alert)
+		rows = append(rows, row)
+		groupSet[row.Group] = true
+		switch alert.Status {
+		case metastore.AlertStatusAcknowledged:
+			stats.Acknowledged++
+		case metastore.AlertStatusClosed:
+			stats.Closed++
+		default:
+			stats.Open++
+		}
+		switch alert.Severity {
+		case metastore.AlertSeverityHigh:
+			stats.High++
+		case metastore.AlertSeverityMedium:
+			stats.Medium++
+		default:
+			stats.Low++
+		}
+	}
+	groups := make([]string, 0, len(groupSet))
+	for group := range groupSet {
+		groups = append(groups, group)
+	}
+	if len(groups) == 0 {
+		groups = []string{"system"}
+	}
+
+	nav := app.accountNavView(ctx, "alerts")
+	nav.AlertCount, nav.AlertSeverity = app.openAlertSummary()
+
+	var selected *AlertRowView
+	if len(rows) > 0 {
+		selected = &rows[0]
+	}
+	return AlertPageView{
+		PageTitle:       "WarpBox Alerts",
+		WindowTitle:     "WarpBox Alerts",
+		WindowIcon:      "!",
+		PageScripts:     []string{"/static/js/account-alerts.js"},
+		AccountNav:      nav,
+		CSRFToken:       app.currentCSRFToken(ctx),
+		Filters:         AlertFiltersView{Query: filters.Query, Severity: filters.Severity, Status: filters.Status, Group: filters.Group, Sort: filters.Sort},
+		Stats:           stats,
+		Alerts:          rows,
+		SelectedAlert:   selected,
+		Groups:          groups,
+		CanManageAlerts: currentAccountPermissions(ctx).AdminAccess,
+	}, nil
+}
+
+func (app *App) AcknowledgeAlert(ctx *gin.Context, actor metastore.User, id string) error {
+	if err := app.requireAlertManage(ctx); err != nil {
+		return err
+	}
+	return app.store.AcknowledgeAlert(id)
+}
+
+func (app *App) CloseAlert(ctx *gin.Context, actor metastore.User, id string) error {
+	if err := app.requireAlertManage(ctx); err != nil {
+		return err
+	}
+	return app.store.CloseAlert(id)
+}
+
+func (app *App) BulkAcknowledgeAlerts(ctx *gin.Context, actor metastore.User, ids []string) error {
+	if err := app.requireAlertManage(ctx); err != nil {
+		return err
+	}
+	for _, id := range uniqueNonEmpty(ids) {
+		if err := app.store.AcknowledgeAlert(id); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (app *App) BulkCloseAlerts(ctx *gin.Context, actor metastore.User, ids []string) error {
+	if err := app.requireAlertManage(ctx); err != nil {
+		return err
+	}
+	for _, id := range uniqueNonEmpty(ids) {
+		if err := app.store.CloseAlert(id); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (app *App) EmitSystemAlert(code string, severity string, title string, description string, trace string, metadata any) error {
+	raw, err := json.Marshal(metadata)
+	if err != nil {
+		log.Printf("alert metadata marshal failed: %v", err)
+		return err
+	}
+	_, err = app.store.CreateAlert(metastore.AlertInput{
+		Title:       title,
+		Description: description,
+		Severity:    severity,
+		Code:        code,
+		Trace:       trace,
+		Metadata:    raw,
+		CreatedBy:   "system",
+	})
+	if err != nil {
+		log.Printf("alert persistence failed: %v", err)
+	}
+	return err
+}
+
+func (app *App) requireAlertView(ctx *gin.Context) error {
+	if !currentAccountPermissions(ctx).AdminAccess {
+		return fmt.Errorf("permission denied")
+	}
+	return nil
+}
+
+func (app *App) requireAlertManage(ctx *gin.Context) error {
+	if !currentAccountPermissions(ctx).AdminAccess {
+		return fmt.Errorf("permission denied")
+	}
+	return nil
+}
+
+func accountAlertFiltersFromRequest(ctx *gin.Context) metastore.AlertFilters {
+	return metastore.AlertFilters{
+		Query:    strings.TrimSpace(ctx.Query("q")),
+		Severity: emptyAsAll(ctx.Query("severity")),
+		Status:   emptyAsAll(ctx.Query("status")),
+		Group:    emptyAsAll(ctx.Query("group")),
+		Sort:     emptyAsNewest(ctx.Query("sort")),
+	}
+}
+
+func emptyAsAll(value string) string {
+	value = strings.TrimSpace(value)
+	if value == "" {
+		return "all"
+	}
+	return value
+}
+
+func emptyAsNewest(value string) string {
+	value = strings.TrimSpace(value)
+	if value == "" {
+		return "newest"
+	}
+	return value
+}
+
+func alertRowView(alert metastore.Alert) AlertRowView {
+	return AlertRowView{
+		ID:             alert.ID,
+		Title:          alert.Title,
+		Description:    alert.Description,
+		Severity:       alert.Severity,
+		Status:         alert.Status,
+		Code:           alert.Code,
+		Trace:          alert.Trace,
+		Group:          alertGroupFromTrace(alert.Trace),
+		MetadataPretty: prettyAlertMetadata(alert.Metadata),
+		CreatedAt:      formatAdminTime(alert.CreatedAt),
+		UpdatedAt:      formatAdminTime(alert.UpdatedAt),
+	}
+}
+
+func prettyAlertMetadata(raw json.RawMessage) string {
+	if len(raw) == 0 {
+		return "{}"
+	}
+	var value any
+	if err := json.Unmarshal(raw, &value); err != nil {
+		return string(raw)
+	}
+	pretty, err := json.MarshalIndent(value, "", "  ")
+	if err != nil {
+		return string(raw)
+	}
+	return string(pretty)
+}
+
+func alertGroupFromTrace(trace string) string {
+	trace = strings.TrimSpace(trace)
+	if trace == "" {
+		return "system"
+	}
+	before, _, found := strings.Cut(trace, ".")
+	if !found || before == "" {
+		return "system"
+	}
+	return strings.ToLower(before)
+}
+
+func (app *App) openAlertSummary() (int, string) {
+	alerts, err := app.store.ListAlerts(metastore.AlertFilters{Status: metastore.AlertStatusOpen})
+	if err != nil {
+		return 0, "ok"
+	}
+	severity := "ok"
+	for _, alert := range alerts {
+		if alert.Severity == metastore.AlertSeverityHigh {
+			return len(alerts), "danger"
+		}
+		if alert.Severity == metastore.AlertSeverityMedium {
+			severity = "warning"
+		} else if severity == "ok" {
+			severity = "info"
+		}
+	}
+	return len(alerts), severity
+}
+
+func uniqueNonEmpty(values []string) []string {
+	seen := map[string]bool{}
+	out := []string{}
+	for _, value := range values {
+		value = strings.TrimSpace(value)
+		if value == "" || seen[value] {
+			continue
+		}
+		seen[value] = true
+		out = append(out, value)
+	}
+	return out
+}

lib/server/account_alerts_test.go

@@ -0,0 +1,155 @@
+package server
+
+import (
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"strings"
+	"testing"
+
+	"warpbox/lib/metastore"
+)
+
+func TestAccountAlertsPageListsAndFiltersAlerts(t *testing.T) {
+	app, user := setupAccountTestApp(t)
+	router := setupAccountTestRouter(t, app)
+	session := createAccountTestSession(t, app, user)
+	createTestAlert(t, app, "601", metastore.AlertSeverityMedium, "thumbnail.generate.failed")
+	createTestAlert(t, app, "701", metastore.AlertSeverityHigh, "storage.connector.health_failed")
+
+	request := httptest.NewRequest(http.MethodGet, "/account/alerts?severity=high", nil)
+	request.AddCookie(&http.Cookie{Name: accountSessionCookie, Value: session.Token})
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+	if response.Code != http.StatusOK {
+		t.Fatalf("expected alerts page, got %d body=%s", response.Code, response.Body.String())
+	}
+	body := response.Body.String()
+	if !strings.Contains(body, "storage.connector.health_failed") {
+		t.Fatal("expected high severity alert")
+	}
+	if strings.Contains(body, "thumbnail.generate.failed") {
+		t.Fatal("did not expect medium severity alert in high filter")
+	}
+}
+
+func TestAccountAlertAcknowledgeAndClose(t *testing.T) {
+	app, user := setupAccountTestApp(t)
+	router := setupAccountTestRouter(t, app)
+	session := createAccountTestSession(t, app, user)
+	alert := createTestAlert(t, app, "601", metastore.AlertSeverityMedium, "thumbnail.generate.failed")
+
+	response := postAlertAction(router, session, "/account/alerts/"+alert.ID+"/acknowledge", nil)
+	if response.Code != http.StatusSeeOther {
+		t.Fatalf("expected acknowledge redirect, got %d", response.Code)
+	}
+	updated, ok, err := app.store.GetAlert(alert.ID)
+	if err != nil || !ok {
+		t.Fatalf("GetAlert returned ok=%v err=%v", ok, err)
+	}
+	if updated.Status != metastore.AlertStatusAcknowledged {
+		t.Fatalf("expected acknowledged alert, got %s", updated.Status)
+	}
+
+	response = postAlertAction(router, session, "/account/alerts/"+alert.ID+"/close", nil)
+	if response.Code != http.StatusSeeOther {
+		t.Fatalf("expected close redirect, got %d", response.Code)
+	}
+	updated, ok, err = app.store.GetAlert(alert.ID)
+	if err != nil || !ok {
+		t.Fatalf("GetAlert returned ok=%v err=%v", ok, err)
+	}
+	if updated.Status != metastore.AlertStatusClosed {
+		t.Fatalf("expected closed alert, got %s", updated.Status)
+	}
+}
+
+func TestAccountAlertManagePermissionDenied(t *testing.T) {
+	app, _ := setupAccountTestApp(t)
+	regular, err := app.store.CreateUserWithPassword("regular-alerts", "regular-alerts@example.test", "secret", nil)
+	if err != nil {
+		t.Fatalf("CreateUserWithPassword returned error: %v", err)
+	}
+	router := setupAccountTestRouter(t, app)
+	session := createAccountTestSession(t, app, regular)
+	alert := createTestAlert(t, app, "601", metastore.AlertSeverityMedium, "thumbnail.generate.failed")
+
+	response := postAlertAction(router, session, "/account/alerts/"+alert.ID+"/acknowledge", nil)
+	if response.Code != http.StatusForbidden {
+		t.Fatalf("expected permission denied, got %d", response.Code)
+	}
+}
+
+func TestDashboardUsesRealAlertCount(t *testing.T) {
+	app, user := setupAccountTestApp(t)
+	router := setupAccountTestRouter(t, app)
+	session := createAccountTestSession(t, app, user)
+	createTestAlert(t, app, "601", metastore.AlertSeverityMedium, "thumbnail.generate.failed")
+
+	request := httptest.NewRequest(http.MethodGet, "/account", nil)
+	request.AddCookie(&http.Cookie{Name: accountSessionCookie, Value: session.Token})
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+	if response.Code != http.StatusOK {
+		t.Fatalf("expected dashboard, got %d", response.Code)
+	}
+	if !strings.Contains(response.Body.String(), "1 alerts") {
+		t.Fatal("expected dashboard alert chip/count")
+	}
+	if !strings.Contains(response.Body.String(), "Thumbnail alert") {
+		t.Fatal("expected dashboard alert preview")
+	}
+}
+
+func TestAccountAlertsExportJSON(t *testing.T) {
+	app, user := setupAccountTestApp(t)
+	router := setupAccountTestRouter(t, app)
+	session := createAccountTestSession(t, app, user)
+	createTestAlert(t, app, "601", metastore.AlertSeverityMedium, "thumbnail.generate.failed")
+
+	request := httptest.NewRequest(http.MethodGet, "/account/alerts/export.json", nil)
+	request.AddCookie(&http.Cookie{Name: accountSessionCookie, Value: session.Token})
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+	if response.Code != http.StatusOK {
+		t.Fatalf("expected export success, got %d", response.Code)
+	}
+	var payload map[string]any
+	if err := json.Unmarshal(response.Body.Bytes(), &payload); err != nil {
+		t.Fatalf("Unmarshal returned error: %v", err)
+	}
+	if _, ok := payload["alerts"]; !ok {
+		t.Fatal("expected alerts export shape")
+	}
+}
+
+func createTestAlert(t *testing.T, app *App, code string, severity string, trace string) metastore.Alert {
+	t.Helper()
+	alert, err := app.store.CreateAlert(metastore.AlertInput{
+		Title:       "Thumbnail alert",
+		Description: "Alert test description.",
+		Severity:    severity,
+		Code:        code,
+		Trace:       trace,
+		Metadata:    json.RawMessage(`{"box":"box-1","file":"photo.jpg"}`),
+		CreatedBy:   "system",
+	})
+	if err != nil {
+		t.Fatalf("CreateAlert returned error: %v", err)
+	}
+	return alert
+}
+
+func postAlertAction(router http.Handler, session metastore.Session, path string, values url.Values) *httptest.ResponseRecorder {
+	if values == nil {
+		values = url.Values{}
+	}
+	values.Set("csrf_token", session.CSRFToken)
+	request := httptest.NewRequest(http.MethodPost, path, strings.NewReader(values.Encode()))
+	request.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+	request.AddCookie(&http.Cookie{Name: accountSessionCookie, Value: session.Token})
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+	return response
+}

lib/server/account_auth.go

@@ -0,0 +1,194 @@
+package server
+
+import (
+	"net/http"
+	"strings"
+	"time"
+
+	"github.com/gin-gonic/gin"
+
+	"warpbox/lib/metastore"
+)
+
+const accountSessionCookie = "warpbox_account_session"
+
+func (app *App) registerAccountRoutes(router *gin.Engine) {
+	account := router.Group("/account")
+	account.Use(noStoreAdminHeaders)
+	account.GET("/login", app.handleAccountLogin)
+	account.POST("/login", app.handleAccountLoginPost)
+
+	protected := account.Group("")
+	protected.Use(app.requireAccountSession)
+	protected.GET("", app.handleAccountDashboard)
+	protected.GET("/", app.handleAccountDashboard)
+	protected.POST("/logout", app.handleAccountLogout)
+	protected.GET("/settings", app.handleAccountSettings)
+	protected.POST("/settings", app.handleAccountSettingsPost)
+	protected.POST("/settings/reset", app.handleAccountSettingsReset)
+	protected.GET("/settings/export.json", app.handleAccountSettingsExport)
+	protected.POST("/settings/import.json", app.handleAccountSettingsImport)
+	protected.GET("/alerts", app.handleAccountAlerts)
+	protected.GET("/alerts/export.json", app.handleAccountAlertsExport)
+	protected.POST("/alerts/bulk/acknowledge", app.handleAccountAlertBulkAcknowledge)
+	protected.POST("/alerts/bulk/close", app.handleAccountAlertBulkClose)
+	protected.POST("/alerts/:id/acknowledge", app.handleAccountAlertAcknowledge)
+	protected.POST("/alerts/:id/close", app.handleAccountAlertClose)
+	protected.GET("/boxes", app.handleAccountBoxes)
+	protected.GET("/boxes/export.csv", app.handleAccountBoxesExport)
+	protected.POST("/boxes/bulk/expire", app.handleAccountBoxesBulkExpire)
+	protected.POST("/boxes/bulk/delete", app.handleAccountBoxesBulkDelete)
+	protected.POST("/boxes/bulk/bump-expiry", app.handleAccountBoxesBulkBumpExpiry)
+	protected.POST("/boxes/delete-largest", app.handleAccountBoxesDeleteLargest)
+	protected.GET("/boxes/:id", app.handleAccountBoxManager)
+	protected.POST("/boxes/:id", app.handleAccountBoxUpdate)
+	protected.POST("/boxes/:id/extend", app.handleAccountBoxExtend)
+	protected.POST("/boxes/:id/expire", app.handleAccountBoxExpire)
+	protected.POST("/boxes/:id/delete", app.handleAccountBoxDelete)
+	protected.POST("/boxes/:id/password", app.handleAccountBoxPassword)
+	protected.POST("/boxes/:id/password/remove", app.handleAccountBoxPasswordRemove)
+	protected.POST("/boxes/:id/files/delete", app.handleAccountBoxFilesDelete)
+	protected.GET("/users", app.handleAccountUsers)
+	protected.POST("/users", app.handleAccountUsersPost)
+	protected.POST("/users/bulk/disable", app.handleAccountUsersBulkDisable)
+	protected.POST("/users/bulk/enable", app.handleAccountUsersBulkEnable)
+	protected.POST("/users/bulk/revoke-sessions", app.handleAccountUsersBulkRevokeSessions)
+	protected.POST("/users/:id/invite/resend", app.handleAccountUsersResendInvite)
+	protected.GET("/users/:id", app.handleAccountUserEdit)
+	protected.POST("/users/:id", app.handleAccountUserEditPost)
+	protected.POST("/users/:id/disable", app.handleAccountUserDisable)
+	protected.POST("/users/:id/enable", app.handleAccountUserEnable)
+	protected.POST("/users/:id/password/reset", app.handleAccountUserPasswordReset)
+	protected.POST("/users/:id/sessions/revoke", app.handleAccountUserRevokeSessions)
+}
+
+func (app *App) handleAccountLogin(ctx *gin.Context) {
+	if app.isAccountSessionValid(ctx) {
+		ctx.Redirect(http.StatusSeeOther, "/account")
+		return
+	}
+	app.renderAccountLogin(ctx, "")
+}
+
+func (app *App) handleAccountLoginPost(ctx *gin.Context) {
+	if !app.adminLoginEnabled {
+		app.renderAccountLogin(ctx, "Account login is disabled.")
+		return
+	}
+
+	username := strings.TrimSpace(ctx.PostForm("username"))
+	password := ctx.PostForm("password")
+	user, ok, err := app.store.GetUserByUsername(username)
+	if err != nil {
+		ctx.String(http.StatusInternalServerError, "Could not load user")
+		return
+	}
+	if !ok || user.Disabled || !metastore.VerifyPassword(user.PasswordHash, password) {
+		app.renderAccountLogin(ctx, "The username or password was not accepted.")
+		return
+	}
+
+	if _, err := app.permissionsForUser(user); err != nil {
+		ctx.String(http.StatusInternalServerError, "Could not load permissions")
+		return
+	}
+
+	session, err := app.store.CreateSession(user.ID, time.Duration(app.config.SessionTTLSeconds)*time.Second)
+	if err != nil {
+		ctx.String(http.StatusInternalServerError, "Could not create session")
+		return
+	}
+	ctx.SetSameSite(http.SameSiteLaxMode)
+	ctx.SetCookie(accountSessionCookie, session.Token, int(app.config.SessionTTLSeconds), "/account", "", app.config.AdminCookieSecure, true)
+	ctx.Redirect(http.StatusSeeOther, "/account")
+}
+
+func (app *App) handleAccountLogout(ctx *gin.Context) {
+	if token, err := ctx.Cookie(accountSessionCookie); err == nil {
+		_ = app.store.DeleteSession(token)
+	}
+	ctx.SetSameSite(http.SameSiteLaxMode)
+	ctx.SetCookie(accountSessionCookie, "", -1, "/account", "", app.config.AdminCookieSecure, true)
+	ctx.Redirect(http.StatusSeeOther, "/account/login")
+}
+
+func (app *App) requireAccountSession(ctx *gin.Context) {
+	token, err := ctx.Cookie(accountSessionCookie)
+	if err != nil {
+		ctx.Redirect(http.StatusSeeOther, "/account/login")
+		ctx.Abort()
+		return
+	}
+	session, ok, err := app.store.GetSession(token)
+	if err != nil || !ok {
+		ctx.Redirect(http.StatusSeeOther, "/account/login")
+		ctx.Abort()
+		return
+	}
+	if !validAdminCSRF(ctx, session) {
+		ctx.String(http.StatusForbidden, "Permission denied")
+		ctx.Abort()
+		return
+	}
+	user, ok, err := app.store.GetUser(session.UserID)
+	if err != nil || !ok || user.Disabled {
+		ctx.Redirect(http.StatusSeeOther, "/account/login")
+		ctx.Abort()
+		return
+	}
+	perms, err := app.permissionsForUser(user)
+	if err != nil {
+		ctx.Redirect(http.StatusSeeOther, "/account/login")
+		ctx.Abort()
+		return
+	}
+
+	ctx.Set("accountUser", user)
+	ctx.Set("adminUser", user)
+	ctx.Set("accountPerms", perms)
+	ctx.Set("adminPerms", perms)
+	ctx.Set("accountSession", session)
+	ctx.Set("accountCSRFToken", session.CSRFToken)
+	ctx.Set("adminCSRFToken", session.CSRFToken)
+	ctx.Next()
+}
+
+func (app *App) isAccountSessionValid(ctx *gin.Context) bool {
+	token, err := ctx.Cookie(accountSessionCookie)
+	if err != nil {
+		return false
+	}
+	session, ok, err := app.store.GetSession(token)
+	if err != nil || !ok {
+		return false
+	}
+	user, ok, err := app.store.GetUser(session.UserID)
+	if err != nil || !ok || user.Disabled {
+		return false
+	}
+	_, err = app.permissionsForUser(user)
+	return err == nil
+}
+
+func (app *App) renderAccountLogin(ctx *gin.Context, errorMessage string) {
+	ctx.HTML(http.StatusOK, "account_login.html", gin.H{
+		"PageTitle":           "WarpBox Account Login",
+		"AdminLoginEnabled":   app.adminLoginEnabled,
+		"AccountLoginEnabled": app.adminLoginEnabled,
+		"Error":               errorMessage,
+	})
+}
+
+func currentAccountUser(ctx *gin.Context) (metastore.User, bool) {
+	if current, ok := ctx.Get("accountUser"); ok {
+		if user, ok := current.(metastore.User); ok {
+			return user, true
+		}
+	}
+	if current, ok := ctx.Get("adminUser"); ok {
+		if user, ok := current.(metastore.User); ok {
+			return user, true
+		}
+	}
+	return metastore.User{}, false
+}

lib/server/account_box_manager.go

@@ -0,0 +1,515 @@
+package server
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"os"
+	"strings"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"golang.org/x/crypto/bcrypt"
+
+	"warpbox/lib/boxstore"
+	"warpbox/lib/helpers"
+	"warpbox/lib/metastore"
+	"warpbox/lib/models"
+)
+
+type BoxManagerView struct {
+	PageTitle   string
+	WindowTitle string
+	WindowIcon  string
+	AccountNav  AccountNavView
+	CSRFToken   string
+	Box         BoxManagerSummary
+	Files       []BoxManagerFileRow
+	Policy      BoxActionPolicy
+	PolicyJSON  string
+	Activity    []BoxManagerActivityRow
+	Error       string
+}
+
+type BoxManagerSummary struct {
+	ID              string
+	Owner           string
+	Status          string
+	Storage         string
+	CreatedAt       string
+	ExpiresAt       string
+	Flags           string
+	OpenURL         string
+	DisableZip      bool
+	OneTimeDownload bool
+}
+
+type BoxManagerFileRow struct {
+	ID       string
+	Name     string
+	Size     string
+	Status   string
+	Download string
+}
+
+type BoxManagerActivityRow struct {
+	At      string
+	Message string
+	Actor   string
+}
+
+type BoxActionPolicy struct {
+	CanViewManager       bool              `json:"can_view_manager"`
+	CanEditMetadata      bool              `json:"can_edit_metadata"`
+	CanEditSharingRules  bool              `json:"can_edit_sharing_rules"`
+	CanEditPassword      bool              `json:"can_edit_password"`
+	CanDeleteBox         bool              `json:"can_delete_box"`
+	CanDeleteFiles       bool              `json:"can_delete_files"`
+	CanExtendExpiry      bool              `json:"can_extend_expiry"`
+	MaxExtensionSeconds  int64             `json:"max_extension_seconds"`
+	MaxRefreshCount      int               `json:"max_refresh_count"`
+	MaxTotalLifetimeSecs int64             `json:"max_total_lifetime_seconds"`
+	Reasons              map[string]string `json:"reasons,omitempty"`
+}
+
+type BoxRulesInput struct {
+	DisableZip      bool
+	OneTimeDownload bool
+}
+
+type BoxPasswordInput struct {
+	Password string
+}
+
+func (app *App) handleAccountBoxManager(ctx *gin.Context) {
+	actor, ok := currentAccountUser(ctx)
+	if !ok {
+		ctx.Redirect(http.StatusSeeOther, "/account/login")
+		return
+	}
+	view, err := app.GetBoxManager(ctx, actor, ctx.Param("id"))
+	if err != nil {
+		ctx.String(http.StatusForbidden, err.Error())
+		return
+	}
+	ctx.HTML(http.StatusOK, "account_box_manager.html", view)
+}
+
+func (app *App) handleAccountBoxUpdate(ctx *gin.Context) {
+	actor, ok := currentAccountUser(ctx)
+	if !ok {
+		ctx.Redirect(http.StatusSeeOther, "/account/login")
+		return
+	}
+	input := BoxRulesInput{
+		DisableZip:      ctx.PostForm("disable_zip") == "true",
+		OneTimeDownload: ctx.PostForm("one_time_download") == "true",
+	}
+	if err := app.UpdateBoxRules(ctx, actor, ctx.Param("id"), input); err != nil {
+		app.renderBoxManagerError(ctx, actor, ctx.Param("id"), err)
+		return
+	}
+	ctx.Redirect(http.StatusSeeOther, "/account/boxes/"+ctx.Param("id"))
+}
+
+func (app *App) handleAccountBoxExtend(ctx *gin.Context) {
+	actor, ok := currentAccountUser(ctx)
+	if !ok {
+		ctx.Redirect(http.StatusSeeOther, "/account/login")
+		return
+	}
+	seconds := parsePositiveInt64Default(ctx.PostForm("extend_seconds"), app.config.BoxOwnerMaxRefreshAmountSeconds)
+	if err := app.ExtendBoxExpiry(ctx, actor, ctx.Param("id"), seconds); err != nil {
+		app.renderBoxManagerError(ctx, actor, ctx.Param("id"), err)
+		return
+	}
+	ctx.Redirect(http.StatusSeeOther, "/account/boxes/"+ctx.Param("id"))
+}
+
+func (app *App) handleAccountBoxExpire(ctx *gin.Context) {
+	actor, ok := currentAccountUser(ctx)
+	if !ok {
+		ctx.Redirect(http.StatusSeeOther, "/account/login")
+		return
+	}
+	if err := app.ExpireBoxNow(ctx, actor, ctx.Param("id")); err != nil {
+		app.renderBoxManagerError(ctx, actor, ctx.Param("id"), err)
+		return
+	}
+	ctx.Redirect(http.StatusSeeOther, "/account/boxes/"+ctx.Param("id"))
+}
+
+func (app *App) handleAccountBoxDelete(ctx *gin.Context) {
+	actor, ok := currentAccountUser(ctx)
+	if !ok {
+		ctx.Redirect(http.StatusSeeOther, "/account/login")
+		return
+	}
+	if err := app.DeleteBox(ctx, actor, ctx.Param("id")); err != nil {
+		app.renderBoxManagerError(ctx, actor, ctx.Param("id"), err)
+		return
+	}
+	ctx.Redirect(http.StatusSeeOther, "/account/boxes")
+}
+
+func (app *App) handleAccountBoxPassword(ctx *gin.Context) {
+	actor, ok := currentAccountUser(ctx)
+	if !ok {
+		ctx.Redirect(http.StatusSeeOther, "/account/login")
+		return
+	}
+	if err := app.SetBoxPassword(ctx, actor, ctx.Param("id"), BoxPasswordInput{Password: ctx.PostForm("password")}); err != nil {
+		app.renderBoxManagerError(ctx, actor, ctx.Param("id"), err)
+		return
+	}
+	ctx.Redirect(http.StatusSeeOther, "/account/boxes/"+ctx.Param("id"))
+}
+
+func (app *App) handleAccountBoxPasswordRemove(ctx *gin.Context) {
+	actor, ok := currentAccountUser(ctx)
+	if !ok {
+		ctx.Redirect(http.StatusSeeOther, "/account/login")
+		return
+	}
+	if err := app.RemoveBoxPassword(ctx, actor, ctx.Param("id")); err != nil {
+		app.renderBoxManagerError(ctx, actor, ctx.Param("id"), err)
+		return
+	}
+	ctx.Redirect(http.StatusSeeOther, "/account/boxes/"+ctx.Param("id"))
+}
+
+func (app *App) handleAccountBoxFilesDelete(ctx *gin.Context) {
+	actor, ok := currentAccountUser(ctx)
+	if !ok {
+		ctx.Redirect(http.StatusSeeOther, "/account/login")
+		return
+	}
+	if err := app.DeleteBoxFiles(ctx, actor, ctx.Param("id"), ctx.PostFormArray("file_ids")); err != nil {
+		app.renderBoxManagerError(ctx, actor, ctx.Param("id"), err)
+		return
+	}
+	ctx.Redirect(http.StatusSeeOther, "/account/boxes/"+ctx.Param("id"))
+}
+
+func (app *App) GetBoxManager(ctx *gin.Context, actor metastore.User, boxID string) (BoxManagerView, error) {
+	record, manifest, err := app.loadBoxForManager(boxID)
+	if err != nil {
+		return BoxManagerView{}, err
+	}
+	policy := app.resolveBoxPolicy(ctx, actor, record, manifest)
+	if !policy.CanViewManager {
+		return BoxManagerView{}, fmt.Errorf(policyReason(policy, "view", "permission denied"))
+	}
+	files := make([]BoxManagerFileRow, 0, len(manifest.Files))
+	for _, file := range boxstore.DecorateFiles(boxID, manifest.Files) {
+		files = append(files, BoxManagerFileRow{ID: file.ID, Name: file.Name, Size: file.SizeLabel, Status: file.StatusLabel, Download: file.DownloadPath})
+	}
+	policyJSON, _ := json.MarshalIndent(policy, "", "  ")
+	nav := app.accountNavView(ctx, "boxes")
+	nav.AlertCount, nav.AlertSeverity = app.openAlertSummary()
+	return BoxManagerView{
+		PageTitle:   "WarpBox Box Manager",
+		WindowTitle: "WarpBox Box Manager",
+		WindowIcon:  "B",
+		AccountNav:  nav,
+		CSRFToken:   app.currentCSRFToken(ctx),
+		Box: BoxManagerSummary{
+			ID:              record.ID,
+			Owner:           boxOwnerLabel(record),
+			Status:          boxStatus(record),
+			Storage:         helpers.FormatBytes(record.TotalSize),
+			CreatedAt:       formatAdminTime(record.CreatedAt),
+			ExpiresAt:       formatAdminTime(record.ExpiresAt),
+			Flags:           boxFlags(record),
+			OpenURL:         "/box/" + record.ID,
+			DisableZip:      record.DisableZip,
+			OneTimeDownload: record.OneTimeDownload,
+		},
+		Files:      files,
+		Policy:     policy,
+		PolicyJSON: string(policyJSON),
+		Activity:   boxActivityRows(manifest.Activity),
+	}, nil
+}
+
+func (app *App) UpdateBoxRules(ctx *gin.Context, actor metastore.User, boxID string, input BoxRulesInput) error {
+	record, manifest, policy, err := app.boxMutationContext(ctx, actor, boxID)
+	if err != nil {
+		return err
+	}
+	if !policy.CanEditSharingRules {
+		return fmt.Errorf(policyReason(policy, "sharing", "sharing edits disabled"))
+	}
+	manifest.DisableZip = input.DisableZip
+	manifest.OneTimeDownload = input.OneTimeDownload
+	appendBoxActivity(&manifest, actor.Username, "sharing rules updated")
+	return app.saveManagedBox(record, manifest)
+}
+
+func (app *App) ExtendBoxExpiry(ctx *gin.Context, actor metastore.User, boxID string, amount int64) error {
+	record, manifest, policy, err := app.boxMutationContext(ctx, actor, boxID)
+	if err != nil {
+		return err
+	}
+	if !policy.CanExtendExpiry {
+		return fmt.Errorf(policyReason(policy, "extend", "expiry refresh disabled"))
+	}
+	if amount <= 0 {
+		return fmt.Errorf("extension amount must be positive")
+	}
+	if policy.MaxExtensionSeconds > 0 && amount > policy.MaxExtensionSeconds {
+		return fmt.Errorf("extension exceeds maximum single extension")
+	}
+	if policy.MaxRefreshCount > 0 && record.RefreshCount >= policy.MaxRefreshCount {
+		return fmt.Errorf("refresh count limit reached")
+	}
+	base := manifest.ExpiresAt
+	if base.IsZero() || time.Now().UTC().After(base) {
+		base = time.Now().UTC()
+	}
+	next := base.Add(time.Duration(amount) * time.Second)
+	if policy.MaxTotalLifetimeSecs > 0 && next.After(manifest.CreatedAt.Add(time.Duration(policy.MaxTotalLifetimeSecs)*time.Second)) {
+		return fmt.Errorf("extension exceeds maximum total lifetime")
+	}
+	manifest.ExpiresAt = next
+	record.RefreshCount++
+	appendBoxActivity(&manifest, actor.Username, "expiry extended")
+	return app.saveManagedBox(record, manifest)
+}
+
+func (app *App) ExpireBoxNow(ctx *gin.Context, actor metastore.User, boxID string) error {
+	record, manifest, policy, err := app.boxMutationContext(ctx, actor, boxID)
+	if err != nil {
+		return err
+	}
+	if !policy.CanEditMetadata {
+		return fmt.Errorf(policyReason(policy, "edit", "edit disabled"))
+	}
+	manifest.ExpiresAt = time.Now().UTC().Add(-time.Second)
+	appendBoxActivity(&manifest, actor.Username, "box expired")
+	return app.saveManagedBox(record, manifest)
+}
+
+func (app *App) DeleteBox(ctx *gin.Context, actor metastore.User, boxID string) error {
+	record, manifest, policy, err := app.boxMutationContext(ctx, actor, boxID)
+	if err != nil {
+		return err
+	}
+	_ = manifest
+	if !policy.CanDeleteBox {
+		return fmt.Errorf(policyReason(policy, "delete", "delete disabled"))
+	}
+	if err := boxstore.DeleteBox(record.ID); err != nil {
+		return err
+	}
+	return app.store.DeleteBoxRecord(record.ID)
+}
+
+func (app *App) SetBoxPassword(ctx *gin.Context, actor metastore.User, boxID string, input BoxPasswordInput) error {
+	record, manifest, policy, err := app.boxMutationContext(ctx, actor, boxID)
+	if err != nil {
+		return err
+	}
+	if !policy.CanEditPassword {
+		return fmt.Errorf(policyReason(policy, "password", "password edits disabled"))
+	}
+	password := strings.TrimSpace(input.Password)
+	if password == "" {
+		return fmt.Errorf("password cannot be empty")
+	}
+	hash, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
+	if err != nil {
+		return err
+	}
+	token, err := helpers.RandomHexID(16)
+	if err != nil {
+		return err
+	}
+	manifest.PasswordHash = string(hash)
+	manifest.PasswordHashAlg = "bcrypt"
+	manifest.AuthToken = token
+	appendBoxActivity(&manifest, actor.Username, "password set")
+	return app.saveManagedBox(record, manifest)
+}
+
+func (app *App) RemoveBoxPassword(ctx *gin.Context, actor metastore.User, boxID string) error {
+	record, manifest, policy, err := app.boxMutationContext(ctx, actor, boxID)
+	if err != nil {
+		return err
+	}
+	if !policy.CanEditPassword {
+		return fmt.Errorf(policyReason(policy, "password", "password edits disabled"))
+	}
+	manifest.PasswordHash = ""
+	manifest.PasswordHashAlg = ""
+	manifest.PasswordSalt = ""
+	manifest.AuthToken = ""
+	appendBoxActivity(&manifest, actor.Username, "password removed")
+	return app.saveManagedBox(record, manifest)
+}
+
+func (app *App) DeleteBoxFiles(ctx *gin.Context, actor metastore.User, boxID string, fileIDs []string) error {
+	record, manifest, policy, err := app.boxMutationContext(ctx, actor, boxID)
+	if err != nil {
+		return err
+	}
+	if !policy.CanDeleteFiles {
+		return fmt.Errorf(policyReason(policy, "files", "file deletion disabled"))
+	}
+	fileIDs = uniqueNonEmpty(fileIDs)
+	if len(fileIDs) == 0 {
+		return fmt.Errorf("no files selected")
+	}
+	remove := map[string]bool{}
+	for _, id := range fileIDs {
+		remove[id] = true
+	}
+	kept := make([]models.BoxFile, 0, len(manifest.Files))
+	for _, file := range manifest.Files {
+		if remove[file.ID] {
+			if path, ok := boxstore.SafeBoxFilePath(boxID, file.Name); ok {
+				_ = os.Remove(path)
+			}
+			continue
+		}
+		kept = append(kept, file)
+	}
+	manifest.Files = kept
+	appendBoxActivity(&manifest, actor.Username, "files deleted")
+	return app.saveManagedBox(record, manifest)
+}
+
+func (app *App) renderBoxManagerError(ctx *gin.Context, actor metastore.User, boxID string, actionErr error) {
+	view, err := app.GetBoxManager(ctx, actor, boxID)
+	if err != nil {
+		ctx.String(http.StatusForbidden, actionErr.Error())
+		return
+	}
+	view.Error = actionErr.Error()
+	ctx.HTML(http.StatusOK, "account_box_manager.html", view)
+}
+
+func (app *App) boxMutationContext(ctx *gin.Context, actor metastore.User, boxID string) (metastore.BoxRecord, models.BoxManifest, BoxActionPolicy, error) {
+	record, manifest, err := app.loadBoxForManager(boxID)
+	if err != nil {
+		return record, manifest, BoxActionPolicy{}, err
+	}
+	policy := app.resolveBoxPolicy(ctx, actor, record, manifest)
+	if !policy.CanViewManager {
+		return record, manifest, policy, fmt.Errorf(policyReason(policy, "view", "permission denied"))
+	}
+	return record, manifest, policy, nil
+}
+
+func (app *App) loadBoxForManager(boxID string) (metastore.BoxRecord, models.BoxManifest, error) {
+	if !boxstore.ValidBoxID(boxID) {
+		return metastore.BoxRecord{}, models.BoxManifest{}, fmt.Errorf("invalid box id")
+	}
+	record, ok, err := app.store.GetBoxRecord(boxID)
+	if err != nil {
+		return record, models.BoxManifest{}, err
+	}
+	if !ok {
+		return record, models.BoxManifest{}, fmt.Errorf("box not found")
+	}
+	manifest, err := boxstore.ReadManifest(boxID)
+	if err != nil {
+		return record, manifest, err
+	}
+	return record, manifest, nil
+}
+
+func (app *App) resolveBoxPolicy(ctx *gin.Context, actor metastore.User, record metastore.BoxRecord, manifest models.BoxManifest) BoxActionPolicy {
+	perms := currentAccountPermissions(ctx)
+	isAdmin := perms.AdminBoxesView
+	isOwner := record.OwnerID != "" && record.OwnerID == actor.ID
+	policy := BoxActionPolicy{
+		MaxExtensionSeconds:  app.config.BoxOwnerMaxRefreshAmountSeconds,
+		MaxRefreshCount:      app.config.BoxOwnerMaxRefreshCount,
+		MaxTotalLifetimeSecs: app.config.BoxOwnerMaxTotalExpirySeconds,
+		Reasons:              map[string]string{},
+	}
+	if isAdmin {
+		policy.CanViewManager = true
+		policy.CanEditMetadata = true
+		policy.CanEditSharingRules = true
+		policy.CanEditPassword = true
+		policy.CanDeleteBox = true
+		policy.CanDeleteFiles = true
+		policy.CanExtendExpiry = !manifest.OneTimeDownload
+		return policy
+	}
+	if !isOwner {
+		policy.Reasons["view"] = "not box owner"
+		return policy
+	}
+	if !app.config.BoxOwnerEditEnabled {
+		policy.Reasons["view"] = "box owner editing disabled"
+		return policy
+	}
+	policy.CanViewManager = true
+	policy.CanEditMetadata = true
+	policy.CanEditSharingRules = true
+	policy.CanDeleteBox = true
+	policy.CanDeleteFiles = true
+	if app.config.BoxOwnerPasswordEditEnabled {
+		policy.CanEditPassword = true
+	} else {
+		policy.Reasons["password"] = "password editing disabled by policy"
+	}
+	if !app.config.BoxOwnerRefreshEnabled {
+		policy.Reasons["extend"] = "refresh disabled by policy"
+	} else if manifest.OneTimeDownload {
+		policy.Reasons["extend"] = "one-time boxes cannot be refreshed"
+	} else if app.config.BoxOwnerMaxRefreshCount > 0 && record.RefreshCount >= app.config.BoxOwnerMaxRefreshCount {
+		policy.Reasons["extend"] = "refresh count limit reached"
+	} else {
+		policy.CanExtendExpiry = true
+	}
+	return policy
+}
+
+func (app *App) saveManagedBox(record metastore.BoxRecord, manifest models.BoxManifest) error {
+	if err := boxstore.WriteManifest(record.ID, manifest); err != nil {
+		return err
+	}
+	next := boxRecordFromManifest(record.ID, manifest)
+	next.RefreshCount = record.RefreshCount
+	return app.store.UpsertBoxRecord(next)
+}
+
+func appendBoxActivity(manifest *models.BoxManifest, actor string, message string) {
+	manifest.Activity = append([]models.BoxActivity{{
+		At:      time.Now().UTC(),
+		Actor:   actor,
+		Message: message,
+	}}, manifest.Activity...)
+	if len(manifest.Activity) > 12 {
+		manifest.Activity = manifest.Activity[:12]
+	}
+}
+
+func boxActivityRows(activity []models.BoxActivity) []BoxManagerActivityRow {
+	rows := make([]BoxManagerActivityRow, 0, len(activity))
+	for _, item := range activity {
+		rows = append(rows, BoxManagerActivityRow{At: formatAdminTime(item.At), Message: item.Message, Actor: item.Actor})
+	}
+	if len(rows) == 0 {
+		rows = append(rows, BoxManagerActivityRow{At: "-", Message: "No box activity yet.", Actor: "system"})
+	}
+	return rows
+}
+
+func policyReason(policy BoxActionPolicy, key string, fallback string) string {
+	if policy.Reasons != nil && policy.Reasons[key] != "" {
+		return policy.Reasons[key]
+	}
+	return fallback
+}
+
+func boxOwnerLabel(record metastore.BoxRecord) string {
+	if record.OwnerUsername != "" {
+		return record.OwnerUsername
+	}
+	return "guest"
+}

lib/server/account_box_manager_test.go

@@ -0,0 +1,219 @@
+package server
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"os"
+	"strings"
+	"testing"
+
+	"warpbox/lib/boxstore"
+	"warpbox/lib/metastore"
+)
+
+func TestAccountBoxManagerAdminCanViewAndEdit(t *testing.T) {
+	app, admin := setupAccountTestApp(t)
+	router := setupAccountTestRouter(t, app)
+	session := createAccountTestSession(t, app, admin)
+	id := "abababababababababababababababab"
+	createIndexedBox(t, app, id, "", "", 10, false)
+
+	response := getAccountBoxManager(router, session, id)
+	if response.Code != http.StatusOK {
+		t.Fatalf("expected manager page, got %d body=%s", response.Code, response.Body.String())
+	}
+	if !strings.Contains(response.Body.String(), "WarpBox Box Manager") {
+		t.Fatal("expected manager UI")
+	}
+
+	form := url.Values{"disable_zip": []string{"true"}}
+	response = postAccountBoxForm(router, session, "/account/boxes/"+id, form)
+	if response.Code != http.StatusSeeOther {
+		t.Fatalf("expected update redirect, got %d", response.Code)
+	}
+	manifest, err := boxstore.ReadManifest(id)
+	if err != nil {
+		t.Fatalf("ReadManifest returned error: %v", err)
+	}
+	if !manifest.DisableZip {
+		t.Fatal("expected sharing rule update")
+	}
+}
+
+func TestAccountBoxManagerOwnerViewAllowedAndDeniedByPolicy(t *testing.T) {
+	app, _ := setupAccountTestApp(t)
+	user, err := app.store.CreateUserWithPassword("owner-view", "owner-view@example.test", "secret", nil)
+	if err != nil {
+		t.Fatalf("CreateUserWithPassword returned error: %v", err)
+	}
+	router := setupAccountTestRouter(t, app)
+	session := createAccountTestSession(t, app, user)
+	id := "bcbcbcbcbcbcbcbcbcbcbcbcbcbcbcbc"
+	createIndexedBox(t, app, id, user.ID, user.Username, 10, false)
+
+	response := getAccountBoxManager(router, session, id)
+	if response.Code != http.StatusOK {
+		t.Fatalf("expected owner manager page, got %d", response.Code)
+	}
+
+	app.config.BoxOwnerEditEnabled = false
+	response = getAccountBoxManager(router, session, id)
+	if response.Code != http.StatusForbidden {
+		t.Fatalf("expected owner denied by policy, got %d", response.Code)
+	}
+}
+
+func TestAccountBoxManagerOwnerRefreshLimits(t *testing.T) {
+	app, _ := setupAccountTestApp(t)
+	app.config.BoxOwnerMaxRefreshCount = 1
+	app.config.BoxOwnerMaxRefreshAmountSeconds = 60
+	app.config.BoxOwnerMaxTotalExpirySeconds = 7200
+	user, err := app.store.CreateUserWithPassword("owner-refresh", "owner-refresh@example.test", "secret", nil)
+	if err != nil {
+		t.Fatalf("CreateUserWithPassword returned error: %v", err)
+	}
+	router := setupAccountTestRouter(t, app)
+	session := createAccountTestSession(t, app, user)
+	id := "cdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcd"
+	createIndexedBox(t, app, id, user.ID, user.Username, 10, false)
+
+	response := postAccountBoxForm(router, session, "/account/boxes/"+id+"/extend", url.Values{"extend_seconds": []string{"60"}})
+	if response.Code != http.StatusSeeOther {
+		t.Fatalf("expected owner refresh success, got %d body=%s", response.Code, response.Body.String())
+	}
+	record, ok, err := app.store.GetBoxRecord(id)
+	if err != nil || !ok {
+		t.Fatalf("GetBoxRecord returned ok=%v err=%v", ok, err)
+	}
+	if record.RefreshCount != 1 {
+		t.Fatalf("expected refresh count 1, got %d", record.RefreshCount)
+	}
+
+	response = postAccountBoxForm(router, session, "/account/boxes/"+id+"/extend", url.Values{"extend_seconds": []string{"60"}})
+	if response.Code != http.StatusOK {
+		t.Fatalf("expected refresh count rejection render, got %d", response.Code)
+	}
+	if !strings.Contains(response.Body.String(), "refresh count") {
+		t.Fatal("expected refresh count error")
+	}
+}
+
+func TestAccountBoxManagerOwnerRefreshRejectedOverMaxDuration(t *testing.T) {
+	app, _ := setupAccountTestApp(t)
+	app.config.BoxOwnerMaxRefreshAmountSeconds = 60
+	user, err := app.store.CreateUserWithPassword("owner-duration", "owner-duration@example.test", "secret", nil)
+	if err != nil {
+		t.Fatalf("CreateUserWithPassword returned error: %v", err)
+	}
+	router := setupAccountTestRouter(t, app)
+	session := createAccountTestSession(t, app, user)
+	id := "dededededededededededededededede"
+	createIndexedBox(t, app, id, user.ID, user.Username, 10, false)
+
+	response := postAccountBoxForm(router, session, "/account/boxes/"+id+"/extend", url.Values{"extend_seconds": []string{"120"}})
+	if response.Code != http.StatusOK {
+		t.Fatalf("expected max duration rejection render, got %d", response.Code)
+	}
+	if !strings.Contains(response.Body.String(), "maximum single extension") {
+		t.Fatal("expected max duration error")
+	}
+}
+
+func TestAccountBoxManagerPasswordSetRemovePermissions(t *testing.T) {
+	app, _ := setupAccountTestApp(t)
+	user, err := app.store.CreateUserWithPassword("owner-pass", "owner-pass@example.test", "secret", nil)
+	if err != nil {
+		t.Fatalf("CreateUserWithPassword returned error: %v", err)
+	}
+	router := setupAccountTestRouter(t, app)
+	session := createAccountTestSession(t, app, user)
+	id := "efefefefefefefefefefefefefefefef"
+	createIndexedBox(t, app, id, user.ID, user.Username, 10, false)
+
+	response := postAccountBoxForm(router, session, "/account/boxes/"+id+"/password", url.Values{"password": []string{"new-secret"}})
+	if response.Code != http.StatusSeeOther {
+		t.Fatalf("expected password set redirect, got %d", response.Code)
+	}
+	manifest, err := boxstore.ReadManifest(id)
+	if err != nil {
+		t.Fatalf("ReadManifest returned error: %v", err)
+	}
+	if manifest.PasswordHash == "" || manifest.AuthToken == "" {
+		t.Fatal("expected password set")
+	}
+
+	app.config.BoxOwnerPasswordEditEnabled = false
+	response = postAccountBoxForm(router, session, "/account/boxes/"+id+"/password/remove", nil)
+	if response.Code != http.StatusOK {
+		t.Fatalf("expected password permission render, got %d", response.Code)
+	}
+	if !strings.Contains(response.Body.String(), "password editing disabled") {
+		t.Fatal("expected password permission error")
+	}
+}
+
+func TestAccountBoxManagerFileDeleteAndBoxDeletePermissions(t *testing.T) {
+	app, _ := setupAccountTestApp(t)
+	user, err := app.store.CreateUserWithPassword("owner-delete", "owner-delete@example.test", "secret", nil)
+	if err != nil {
+		t.Fatalf("CreateUserWithPassword returned error: %v", err)
+	}
+	router := setupAccountTestRouter(t, app)
+	session := createAccountTestSession(t, app, user)
+	id := "fafafafafafafafafafafafafafafafa"
+	createIndexedBox(t, app, id, user.ID, user.Username, 10, false)
+	manifest, err := boxstore.ReadManifest(id)
+	if err != nil {
+		t.Fatalf("ReadManifest returned error: %v", err)
+	}
+	fileID := manifest.Files[0].ID
+
+	response := postAccountBoxForm(router, session, "/account/boxes/"+id+"/files/delete", url.Values{"file_ids": []string{fileID}})
+	if response.Code != http.StatusSeeOther {
+		t.Fatalf("expected file delete redirect, got %d", response.Code)
+	}
+	manifest, err = boxstore.ReadManifest(id)
+	if err != nil {
+		t.Fatalf("ReadManifest returned error: %v", err)
+	}
+	if len(manifest.Files) != 0 {
+		t.Fatalf("expected file removed, got %#v", manifest.Files)
+	}
+
+	app.config.BoxOwnerEditEnabled = false
+	response = postAccountBoxForm(router, session, "/account/boxes/"+id+"/delete", nil)
+	if response.Code != http.StatusForbidden {
+		t.Fatalf("expected delete permission denied after policy disabled, got %d", response.Code)
+	}
+
+	app.config.BoxOwnerEditEnabled = true
+	response = postAccountBoxForm(router, session, "/account/boxes/"+id+"/delete", nil)
+	if response.Code != http.StatusSeeOther {
+		t.Fatalf("expected box delete redirect, got %d", response.Code)
+	}
+	if _, err := os.Stat(boxstore.BoxPath(id)); !os.IsNotExist(err) {
+		t.Fatalf("expected box directory deleted, stat err=%v", err)
+	}
+}
+
+func getAccountBoxManager(router http.Handler, session metastore.Session, id string) *httptest.ResponseRecorder {
+	request := httptest.NewRequest(http.MethodGet, "/account/boxes/"+id, nil)
+	request.AddCookie(&http.Cookie{Name: accountSessionCookie, Value: session.Token})
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+	return response
+}
+
+func postAccountBoxForm(router http.Handler, session metastore.Session, path string, values url.Values) *httptest.ResponseRecorder {
+	if values == nil {
+		values = url.Values{}
+	}
+	values.Set("csrf_token", session.CSRFToken)
+	request := httptest.NewRequest(http.MethodPost, path, strings.NewReader(values.Encode()))
+	request.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+	request.AddCookie(&http.Cookie{Name: accountSessionCookie, Value: session.Token})
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+	return response
+}

lib/server/account_boxes.go

@@ -0,0 +1,454 @@
+package server
+
+import (
+	"bytes"
+	"encoding/csv"
+	"fmt"
+	"net/http"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/gin-gonic/gin"
+
+	"warpbox/lib/boxstore"
+	"warpbox/lib/helpers"
+	"warpbox/lib/metastore"
+	"warpbox/lib/models"
+)
+
+type BoxIndexView struct {
+	PageTitle     string
+	WindowTitle   string
+	WindowIcon    string
+	AccountNav    AccountNavView
+	CSRFToken     string
+	Filters       BoxFiltersView
+	Rows          []BoxRowView
+	Stats         BoxIndexStats
+	Page          int
+	PageSize      int
+	Total         int
+	TotalPages    int
+	HasPrev       bool
+	HasNext       bool
+	PrevURL       string
+	NextURL       string
+	CanManage     bool
+	PolicySummary string
+	Error         string
+}
+
+type BoxFiltersView struct {
+	Query    string
+	Owner    string
+	Status   string
+	Flag     string
+	Sort     string
+	PageSize int
+}
+
+type BoxIndexStats struct {
+	Visible int
+	Total   int
+	Expired int
+	Storage string
+}
+
+type BoxRowView struct {
+	ID        string
+	Owner     string
+	Status    string
+	FileCount int
+	Size      string
+	CreatedAt string
+	ExpiresAt string
+	Flags     string
+	Policy    string
+	CanManage bool
+	ManageURL string
+	OpenURL   string
+}
+
+func (app *App) handleAccountBoxes(ctx *gin.Context) {
+	actor, ok := currentAccountUser(ctx)
+	if !ok {
+		ctx.Redirect(http.StatusSeeOther, "/account/login")
+		return
+	}
+	view, err := app.ListBoxes(ctx, actor, boxFiltersFromRequest(ctx), boxPageFromRequest(ctx))
+	if err != nil {
+		ctx.String(http.StatusForbidden, "Permission denied")
+		return
+	}
+	ctx.HTML(http.StatusOK, "account_boxes.html", view)
+}
+
+func (app *App) handleAccountBoxesBulkExpire(ctx *gin.Context) {
+	app.handleAccountBoxesBulkAction(ctx, app.ExpireBoxes)
+}
+
+func (app *App) handleAccountBoxesBulkDelete(ctx *gin.Context) {
+	app.handleAccountBoxesBulkAction(ctx, app.DeleteBoxes)
+}
+
+func (app *App) handleAccountBoxesBulkBumpExpiry(ctx *gin.Context) {
+	app.handleAccountBoxesBulkAction(ctx, func(ctx *gin.Context, actor metastore.User, ids []string) error {
+		seconds := parsePositiveInt64Default(ctx.PostForm("bump_seconds"), app.config.BoxOwnerMaxRefreshAmountSeconds)
+		return app.BumpBoxExpiries(ctx, actor, ids, seconds)
+	})
+}
+
+func (app *App) handleAccountBoxesDeleteLargest(ctx *gin.Context) {
+	actor, ok := currentAccountUser(ctx)
+	if !ok {
+		ctx.Redirect(http.StatusSeeOther, "/account/login")
+		return
+	}
+	filters := boxFiltersFromRequest(ctx)
+	filters.Sort = "largest"
+	page := metastore.BoxPageRequest{Page: 1, PageSize: 25}
+	boxPage, err := app.visibleBoxRecords(ctx, actor, filters, page)
+	if err != nil {
+		ctx.String(http.StatusForbidden, err.Error())
+		return
+	}
+	ids := make([]string, 0, 10)
+	for _, row := range boxPage.Rows {
+		if len(ids) == 10 {
+			break
+		}
+		ids = append(ids, row.ID)
+	}
+	if err := app.DeleteBoxes(ctx, actor, ids); err != nil {
+		ctx.String(http.StatusForbidden, err.Error())
+		return
+	}
+	ctx.Redirect(http.StatusSeeOther, "/account/boxes")
+}
+
+func (app *App) handleAccountBoxesExport(ctx *gin.Context) {
+	actor, ok := currentAccountUser(ctx)
+	if !ok {
+		ctx.Redirect(http.StatusSeeOther, "/account/login")
+		return
+	}
+	page, err := app.visibleBoxRecords(ctx, actor, boxFiltersFromRequest(ctx), metastore.BoxPageRequest{Page: 1, PageSize: 100})
+	if err != nil {
+		ctx.String(http.StatusForbidden, err.Error())
+		return
+	}
+	var buffer bytes.Buffer
+	writer := csv.NewWriter(&buffer)
+	_ = writer.Write([]string{"id", "owner", "status", "file_count", "total_size", "created_at", "expires_at", "flags"})
+	for _, record := range page.Rows {
+		_ = writer.Write([]string{record.ID, record.OwnerUsername, boxStatus(record), strconv.Itoa(record.FileCount), strconv.FormatInt(record.TotalSize, 10), record.CreatedAt.Format(time.RFC3339), record.ExpiresAt.Format(time.RFC3339), boxFlags(record)})
+	}
+	writer.Flush()
+	ctx.Header("Content-Disposition", `attachment; filename="warpbox-boxes.csv"`)
+	ctx.Data(http.StatusOK, "text/csv; charset=utf-8", buffer.Bytes())
+}
+
+func (app *App) handleAccountBoxesBulkAction(ctx *gin.Context, action func(*gin.Context, metastore.User, []string) error) {
+	actor, ok := currentAccountUser(ctx)
+	if !ok {
+		ctx.Redirect(http.StatusSeeOther, "/account/login")
+		return
+	}
+	if err := action(ctx, actor, ctx.PostFormArray("box_ids")); err != nil {
+		ctx.String(http.StatusForbidden, err.Error())
+		return
+	}
+	ctx.Redirect(http.StatusSeeOther, "/account/boxes")
+}
+
+func (app *App) ListBoxes(ctx *gin.Context, actor metastore.User, filters metastore.BoxFilters, page metastore.BoxPageRequest) (BoxIndexView, error) {
+	boxPage, err := app.visibleBoxRecords(ctx, actor, filters, page)
+	if err != nil {
+		return BoxIndexView{}, err
+	}
+	rows := make([]BoxRowView, 0, len(boxPage.Rows))
+	stats := BoxIndexStats{Visible: len(boxPage.Rows), Total: boxPage.Total}
+	totalSize := int64(0)
+	for _, record := range boxPage.Rows {
+		totalSize += record.TotalSize
+		if boxExpired(record) {
+			stats.Expired++
+		}
+		rows = append(rows, app.boxRowView(ctx, actor, record))
+	}
+	stats.Storage = helpers.FormatBytes(totalSize)
+	nav := app.accountNavView(ctx, "boxes")
+	nav.AlertCount, nav.AlertSeverity = app.openAlertSummary()
+	return BoxIndexView{
+		PageTitle:     "WarpBox Boxes",
+		WindowTitle:   "WarpBox Boxes",
+		WindowIcon:    "B",
+		AccountNav:    nav,
+		CSRFToken:     app.currentCSRFToken(ctx),
+		Filters:       BoxFiltersView{Query: filters.Query, Owner: filters.Owner, Status: filters.Status, Flag: filters.Flag, Sort: filters.Sort, PageSize: boxPage.PageSize},
+		Rows:          rows,
+		Stats:         stats,
+		Page:          boxPage.Page,
+		PageSize:      boxPage.PageSize,
+		Total:         boxPage.Total,
+		TotalPages:    boxPage.TotalPages,
+		HasPrev:       boxPage.HasPrev,
+		HasNext:       boxPage.HasNext,
+		PrevURL:       boxPageURL(ctx, boxPage.PrevPage),
+		NextURL:       boxPageURL(ctx, boxPage.NextPage),
+		CanManage:     currentAccountPermissions(ctx).AdminBoxesView,
+		PolicySummary: app.boxPolicySummary(),
+	}, nil
+}
+
+func (app *App) ExpireBoxes(ctx *gin.Context, actor metastore.User, ids []string) error {
+	records, err := app.authorizedBoxRecords(ctx, actor, ids)
+	if err != nil {
+		return err
+	}
+	now := time.Now().UTC().Add(-time.Second)
+	for _, record := range records {
+		manifest, err := boxstore.ReadManifest(record.ID)
+		if err == nil {
+			manifest.ExpiresAt = now
+			_ = boxstore.WriteManifest(record.ID, manifest)
+		}
+		record.ExpiresAt = now
+		if err := app.store.UpsertBoxRecord(record); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (app *App) DeleteBoxes(ctx *gin.Context, actor metastore.User, ids []string) error {
+	records, err := app.authorizedBoxRecords(ctx, actor, ids)
+	if err != nil {
+		return err
+	}
+	for _, record := range records {
+		if err := boxstore.DeleteBox(record.ID); err != nil {
+			return err
+		}
+		if err := app.store.DeleteBoxRecord(record.ID); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (app *App) BumpBoxExpiries(ctx *gin.Context, actor metastore.User, ids []string, seconds int64) error {
+	if seconds <= 0 {
+		return fmt.Errorf("bump expiry requires a positive duration")
+	}
+	if !app.config.BoxOwnerRefreshEnabled {
+		return fmt.Errorf("box owner refresh policy is disabled")
+	}
+	if app.config.BoxOwnerMaxRefreshAmountSeconds > 0 && seconds > app.config.BoxOwnerMaxRefreshAmountSeconds {
+		return fmt.Errorf("bump expiry exceeds maximum refresh amount")
+	}
+	records, err := app.authorizedBoxRecords(ctx, actor, ids)
+	if err != nil {
+		return err
+	}
+	for _, record := range records {
+		if record.OneTimeDownload {
+			return fmt.Errorf("one-time boxes cannot be refreshed")
+		}
+		if app.config.BoxOwnerMaxRefreshCount > 0 && record.RefreshCount >= app.config.BoxOwnerMaxRefreshCount {
+			return fmt.Errorf("box refresh count limit reached")
+		}
+		base := record.ExpiresAt
+		if base.IsZero() || time.Now().UTC().After(base) {
+			base = time.Now().UTC()
+		}
+		newExpiry := base.Add(time.Duration(seconds) * time.Second)
+		if app.config.BoxOwnerMaxTotalExpirySeconds > 0 && !record.CreatedAt.IsZero() && newExpiry.After(record.CreatedAt.Add(time.Duration(app.config.BoxOwnerMaxTotalExpirySeconds)*time.Second)) {
+			return fmt.Errorf("bump expiry exceeds maximum total expiry")
+		}
+		manifest, err := boxstore.ReadManifest(record.ID)
+		if err == nil {
+			manifest.ExpiresAt = newExpiry
+			_ = boxstore.WriteManifest(record.ID, manifest)
+		}
+		record.ExpiresAt = newExpiry
+		record.RefreshCount++
+		if err := app.store.UpsertBoxRecord(record); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (app *App) visibleBoxRecords(ctx *gin.Context, actor metastore.User, filters metastore.BoxFilters, page metastore.BoxPageRequest) (metastore.BoxRecordPage, error) {
+	perms := currentAccountPermissions(ctx)
+	if !perms.AdminBoxesView {
+		filters.Owner = actor.ID
+	}
+	return app.store.ListBoxRecords(filters, page)
+}
+
+func (app *App) authorizedBoxRecords(ctx *gin.Context, actor metastore.User, ids []string) ([]metastore.BoxRecord, error) {
+	ids = uniqueNonEmpty(ids)
+	if len(ids) == 0 {
+		return nil, fmt.Errorf("no boxes selected")
+	}
+	perms := currentAccountPermissions(ctx)
+	records := make([]metastore.BoxRecord, 0, len(ids))
+	for _, id := range ids {
+		record, ok, err := app.store.GetBoxRecord(id)
+		if err != nil {
+			return nil, err
+		}
+		if !ok {
+			return nil, fmt.Errorf("box %s not found", id)
+		}
+		if !perms.AdminBoxesView && record.OwnerID != actor.ID {
+			return nil, fmt.Errorf("permission denied")
+		}
+		if !perms.AdminBoxesView && !app.config.BoxOwnerEditEnabled {
+			return nil, fmt.Errorf("box owner edit policy is disabled")
+		}
+		records = append(records, record)
+	}
+	return records, nil
+}
+
+func (app *App) boxRowView(ctx *gin.Context, actor metastore.User, record metastore.BoxRecord) BoxRowView {
+	owner := record.OwnerUsername
+	if owner == "" {
+		owner = "guest"
+	}
+	return BoxRowView{
+		ID:        record.ID,
+		Owner:     owner,
+		Status:    boxStatus(record),
+		FileCount: record.FileCount,
+		Size:      helpers.FormatBytes(record.TotalSize),
+		CreatedAt: formatAdminTime(record.CreatedAt),
+		ExpiresAt: formatAdminTime(record.ExpiresAt),
+		Flags:     boxFlags(record),
+		Policy:    app.boxRecordPolicy(record),
+		CanManage: currentAccountPermissions(ctx).AdminBoxesView || record.OwnerID == actor.ID,
+		ManageURL: "/account/boxes/" + record.ID,
+		OpenURL:   "/box/" + record.ID,
+	}
+}
+
+func (app *App) indexBoxFromManifest(boxID string) {
+	manifest, err := boxstore.ReadManifest(boxID)
+	if err != nil {
+		return
+	}
+	_ = app.store.UpsertBoxRecord(boxRecordFromManifest(boxID, manifest))
+}
+
+func boxRecordFromManifest(boxID string, manifest models.BoxManifest) metastore.BoxRecord {
+	total := int64(0)
+	names := make([]string, 0, len(manifest.Files))
+	for _, file := range manifest.Files {
+		total += file.Size
+		names = append(names, file.Name)
+	}
+	return metastore.BoxRecord{
+		ID:                boxID,
+		OwnerID:           manifest.OwnerID,
+		OwnerUsername:     manifest.OwnerUsername,
+		FileNames:         names,
+		FileCount:         len(manifest.Files),
+		TotalSize:         total,
+		CreatedAt:         manifest.CreatedAt,
+		ExpiresAt:         manifest.ExpiresAt,
+		PasswordProtected: boxstore.IsPasswordProtected(manifest),
+		OneTimeDownload:   manifest.OneTimeDownload,
+		DisableZip:        manifest.DisableZip,
+	}
+}
+
+func boxFiltersFromRequest(ctx *gin.Context) metastore.BoxFilters {
+	return metastore.BoxFilters{
+		Query:  strings.TrimSpace(ctx.Query("q")),
+		Owner:  emptyAsAll(ctx.Query("owner")),
+		Status: emptyAsAll(ctx.Query("status")),
+		Flag:   emptyAsAll(ctx.Query("flag")),
+		Sort:   emptyAsNewest(ctx.Query("sort")),
+	}
+}
+
+func boxPageFromRequest(ctx *gin.Context) metastore.BoxPageRequest {
+	page, _ := strconv.Atoi(ctx.DefaultQuery("page", "1"))
+	pageSize, _ := strconv.Atoi(ctx.DefaultQuery("page_size", "25"))
+	return metastore.BoxPageRequest{Page: page, PageSize: pageSize}
+}
+
+func boxStatus(record metastore.BoxRecord) string {
+	if boxExpired(record) {
+		return "expired"
+	}
+	if record.ExpiresAt.IsZero() {
+		return "pending"
+	}
+	return "active"
+}
+
+func boxExpired(record metastore.BoxRecord) bool {
+	return !record.ExpiresAt.IsZero() && time.Now().UTC().After(record.ExpiresAt)
+}
+
+func boxFlags(record metastore.BoxRecord) string {
+	flags := []string{}
+	if record.PasswordProtected {
+		flags = append(flags, "password")
+	}
+	if record.OneTimeDownload {
+		flags = append(flags, "one-time")
+	}
+	if record.DisableZip {
+		flags = append(flags, "zip disabled")
+	}
+	if boxExpired(record) {
+		flags = append(flags, "expired")
+	}
+	if len(flags) == 0 {
+		return "normal"
+	}
+	return strings.Join(flags, ", ")
+}
+
+func (app *App) boxRecordPolicy(record metastore.BoxRecord) string {
+	if record.OneTimeDownload {
+		return "one-time: no refresh"
+	}
+	if !app.config.BoxOwnerEditEnabled {
+		return "owner edits disabled"
+	}
+	if !app.config.BoxOwnerRefreshEnabled {
+		return "editable, no refresh"
+	}
+	return fmt.Sprintf("editable, refresh %d/%d", record.RefreshCount, app.config.BoxOwnerMaxRefreshCount)
+}
+
+func (app *App) boxPolicySummary() string {
+	if !app.config.BoxOwnerEditEnabled {
+		return "Owners cannot edit boxes by default."
+	}
+	if !app.config.BoxOwnerRefreshEnabled {
+		return "Owners can edit boxes but cannot refresh expiry."
+	}
+	return fmt.Sprintf("Owners can edit and refresh up to %d times by %s.", app.config.BoxOwnerMaxRefreshCount, formatDurationForSettings(app.config.BoxOwnerMaxRefreshAmountSeconds))
+}
+
+func boxPageURL(ctx *gin.Context, page int) string {
+	query := ctx.Request.URL.Query()
+	query.Set("page", strconv.Itoa(page))
+	return "/account/boxes?" + query.Encode()
+}
+
+func parsePositiveInt64Default(raw string, fallback int64) int64 {
+	value, err := strconv.ParseInt(strings.TrimSpace(raw), 10, 64)
+	if err != nil || value <= 0 {
+		return fallback
+	}
+	return value
+}

lib/server/account_boxes_test.go

@@ -0,0 +1,220 @@
+package server
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+	"time"
+
+	"warpbox/lib/boxstore"
+	"warpbox/lib/metastore"
+	"warpbox/lib/models"
+)
+
+func TestAccountBoxesAdminListsBoxes(t *testing.T) {
+	app, user := setupAccountTestApp(t)
+	router := setupAccountTestRouter(t, app)
+	session := createAccountTestSession(t, app, user)
+	createIndexedBox(t, app, "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "", "", 10, false)
+
+	response := getAccountBoxes(router, session, "/account/boxes")
+	if response.Code != http.StatusOK {
+		t.Fatalf("expected boxes page, got %d body=%s", response.Code, response.Body.String())
+	}
+	if !strings.Contains(response.Body.String(), "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") {
+		t.Fatal("expected indexed box in admin list")
+	}
+}
+
+func TestAccountBoxesRegularUserSeesOnlyOwnBoxes(t *testing.T) {
+	app, _ := setupAccountTestApp(t)
+	user, err := app.store.CreateUserWithPassword("box-user", "box-user@example.test", "secret", nil)
+	if err != nil {
+		t.Fatalf("CreateUserWithPassword returned error: %v", err)
+	}
+	router := setupAccountTestRouter(t, app)
+	session := createAccountTestSession(t, app, user)
+	createIndexedBox(t, app, "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb", user.ID, user.Username, 10, false)
+	createIndexedBox(t, app, "cccccccccccccccccccccccccccccccc", "other", "other", 20, false)
+
+	response := getAccountBoxes(router, session, "/account/boxes")
+	if response.Code != http.StatusOK {
+		t.Fatalf("expected boxes page, got %d", response.Code)
+	}
+	body := response.Body.String()
+	if !strings.Contains(body, "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb") {
+		t.Fatal("expected own box")
+	}
+	if strings.Contains(body, "cccccccccccccccccccccccccccccccc") {
+		t.Fatal("did not expect other user's box")
+	}
+}
+
+func TestAccountBoxesFiltersSortAndPagination(t *testing.T) {
+	app, user := setupAccountTestApp(t)
+	router := setupAccountTestRouter(t, app)
+	session := createAccountTestSession(t, app, user)
+	createIndexedBox(t, app, "11111111111111111111111111111111", "", "", 10, false)
+	createIndexedBox(t, app, "22222222222222222222222222222222", "", "", 1000, true)
+	createIndexedBox(t, app, "33333333333333333333333333333333", "", "", 500, false)
+
+	response := getAccountBoxes(router, session, "/account/boxes?flag=password&sort=largest&page_size=25")
+	if response.Code != http.StatusOK {
+		t.Fatalf("expected boxes page, got %d", response.Code)
+	}
+	body := response.Body.String()
+	if !strings.Contains(body, "22222222222222222222222222222222") {
+		t.Fatal("expected password filtered box")
+	}
+	if strings.Contains(body, "11111111111111111111111111111111") {
+		t.Fatal("did not expect unfiltered box")
+	}
+
+	page, err := app.store.ListBoxRecords(metastore.BoxFilters{Sort: "largest"}, metastore.BoxPageRequest{Page: 1, PageSize: 25})
+	if err != nil {
+		t.Fatalf("ListBoxRecords returned error: %v", err)
+	}
+	if len(page.Rows) != 3 || page.Rows[0].ID != "22222222222222222222222222222222" {
+		t.Fatalf("expected largest sort first, got %#v", page.Rows)
+	}
+}
+
+func TestAccountBoxesBulkExpireAndDelete(t *testing.T) {
+	app, user := setupAccountTestApp(t)
+	router := setupAccountTestRouter(t, app)
+	session := createAccountTestSession(t, app, user)
+	id := "dddddddddddddddddddddddddddddddd"
+	createIndexedBox(t, app, id, "", "", 10, false)
+
+	values := url.Values{"box_ids": []string{id}}
+	response := postAccountBoxesForm(router, session, "/account/boxes/bulk/expire", values)
+	if response.Code != http.StatusSeeOther {
+		t.Fatalf("expected expire redirect, got %d", response.Code)
+	}
+	record, ok, err := app.store.GetBoxRecord(id)
+	if err != nil || !ok {
+		t.Fatalf("GetBoxRecord returned ok=%v err=%v", ok, err)
+	}
+	if record.ExpiresAt.After(time.Now().UTC()) {
+		t.Fatal("expected box to be expired")
+	}
+
+	response = postAccountBoxesForm(router, session, "/account/boxes/bulk/delete", values)
+	if response.Code != http.StatusSeeOther {
+		t.Fatalf("expected delete redirect, got %d", response.Code)
+	}
+	if _, ok, err := app.store.GetBoxRecord(id); err != nil || ok {
+		t.Fatalf("expected deleted record, ok=%v err=%v", ok, err)
+	}
+	if _, err := os.Stat(boxstore.BoxPath(id)); !os.IsNotExist(err) {
+		t.Fatalf("expected box directory deleted, stat err=%v", err)
+	}
+}
+
+func TestAccountBoxesBulkDeletePermissionDenied(t *testing.T) {
+	app, _ := setupAccountTestApp(t)
+	user, err := app.store.CreateUserWithPassword("box-limited", "box-limited@example.test", "secret", nil)
+	if err != nil {
+		t.Fatalf("CreateUserWithPassword returned error: %v", err)
+	}
+	router := setupAccountTestRouter(t, app)
+	session := createAccountTestSession(t, app, user)
+	id := "eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee"
+	createIndexedBox(t, app, id, "other", "other", 10, false)
+
+	response := postAccountBoxesForm(router, session, "/account/boxes/bulk/delete", url.Values{"box_ids": []string{id}})
+	if response.Code != http.StatusForbidden {
+		t.Fatalf("expected permission denied, got %d", response.Code)
+	}
+}
+
+func TestAccountBoxesBumpExpiryPolicyRejection(t *testing.T) {
+	app, user := setupAccountTestApp(t)
+	app.config.BoxOwnerRefreshEnabled = false
+	router := setupAccountTestRouter(t, app)
+	session := createAccountTestSession(t, app, user)
+	id := "ffffffffffffffffffffffffffffffff"
+	createIndexedBox(t, app, id, "", "", 10, false)
+
+	response := postAccountBoxesForm(router, session, "/account/boxes/bulk/bump-expiry", url.Values{"box_ids": []string{id}, "bump_seconds": []string{"60"}})
+	if response.Code != http.StatusForbidden {
+		t.Fatalf("expected policy rejection, got %d", response.Code)
+	}
+}
+
+func TestAccountBoxesDeleteLargest(t *testing.T) {
+	app, user := setupAccountTestApp(t)
+	router := setupAccountTestRouter(t, app)
+	session := createAccountTestSession(t, app, user)
+	small := "12345123451234512345123451234512"
+	large := "99999999999999999999999999999999"
+	createIndexedBox(t, app, small, "", "", 10, false)
+	createIndexedBox(t, app, large, "", "", 1000, false)
+
+	response := postAccountBoxesForm(router, session, "/account/boxes/delete-largest", nil)
+	if response.Code != http.StatusSeeOther {
+		t.Fatalf("expected delete-largest redirect, got %d", response.Code)
+	}
+	if _, ok, err := app.store.GetBoxRecord(large); err != nil || ok {
+		t.Fatalf("expected largest deleted, ok=%v err=%v", ok, err)
+	}
+}
+
+func createIndexedBox(t *testing.T, app *App, id string, ownerID string, ownerUsername string, size int64, password bool) {
+	t.Helper()
+	if err := os.MkdirAll(boxstore.BoxPath(id), 0755); err != nil {
+		t.Fatalf("MkdirAll returned error: %v", err)
+	}
+	filename := "file-" + id[:4] + ".txt"
+	if err := os.WriteFile(filepath.Join(boxstore.BoxPath(id), filename), []byte(strings.Repeat("x", int(size))), 0644); err != nil {
+		t.Fatalf("WriteFile returned error: %v", err)
+	}
+	manifest := models.BoxManifest{
+		OwnerID:       ownerID,
+		OwnerUsername: ownerUsername,
+		Files: []models.BoxFile{{
+			ID:     "abcdabcdabcdabcd",
+			Name:   filename,
+			Size:   size,
+			Status: models.FileStatusReady,
+		}},
+		CreatedAt:     time.Now().UTC().Add(-time.Duration(size) * time.Second),
+		ExpiresAt:     time.Now().UTC().Add(time.Hour),
+		RetentionSecs: 3600,
+	}
+	if password {
+		manifest.PasswordHash = "hash"
+		manifest.AuthToken = "token"
+	}
+	if err := boxstore.WriteManifest(id, manifest); err != nil {
+		t.Fatalf("WriteManifest returned error: %v", err)
+	}
+	if err := app.store.UpsertBoxRecord(boxRecordFromManifest(id, manifest)); err != nil {
+		t.Fatalf("UpsertBoxRecord returned error: %v", err)
+	}
+}
+
+func getAccountBoxes(router http.Handler, session metastore.Session, path string) *httptest.ResponseRecorder {
+	request := httptest.NewRequest(http.MethodGet, path, nil)
+	request.AddCookie(&http.Cookie{Name: accountSessionCookie, Value: session.Token})
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+	return response
+}
+
+func postAccountBoxesForm(router http.Handler, session metastore.Session, path string, values url.Values) *httptest.ResponseRecorder {
+	if values == nil {
+		values = url.Values{}
+	}
+	values.Set("csrf_token", session.CSRFToken)
+	request := httptest.NewRequest(http.MethodPost, path, strings.NewReader(values.Encode()))
+	request.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+	request.AddCookie(&http.Cookie{Name: accountSessionCookie, Value: session.Token})
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+	return response
+}

lib/server/account_nav.go

@@ -0,0 +1,61 @@
+package server
+
+import (
+	"strings"
+
+	"github.com/gin-gonic/gin"
+
+	"warpbox/lib/metastore"
+)
+
+type AccountNavView struct {
+	Username        string
+	IsAdmin         bool
+	ActiveSection   string
+	AlertCount      int
+	AlertSeverity   string
+	CanViewBoxes    bool
+	CanViewAlerts   bool
+	CanViewUsers    bool
+	CanViewAPIKeys  bool
+	CanViewSettings bool
+}
+
+func (app *App) accountNavView(ctx *gin.Context, activeSection string) AccountNavView {
+	perms := currentAccountPermissions(ctx)
+	isAdmin := perms.AdminAccess
+
+	return AccountNavView{
+		Username:        app.currentAdminUsername(ctx),
+		IsAdmin:         isAdmin,
+		ActiveSection:   activeSection,
+		AlertSeverity:   "ok",
+		CanViewBoxes:    true,
+		CanViewAlerts:   true,
+		CanViewUsers:    perms.AdminUsersManage,
+		CanViewAPIKeys:  true,
+		CanViewSettings: perms.AdminSettingsManage,
+	}
+}
+
+func currentAccountPermissions(ctx *gin.Context) metastore.EffectivePermissions {
+	value, ok := ctx.Get("adminPerms")
+	if !ok {
+		return metastore.EffectivePermissions{}
+	}
+	perms, ok := value.(metastore.EffectivePermissions)
+	if !ok {
+		return metastore.EffectivePermissions{}
+	}
+	return perms
+}
+
+func normalizeAlertSeverity(severity string) string {
+	normalized := strings.ToLower(strings.TrimSpace(severity))
+	switch normalized {
+	case "danger", "warning", "info", "ok":
+		return normalized
+	default:
+		return "ok"
+	}
+}

lib/server/account_pages.go

@@ -0,0 +1,253 @@
+package server
+
+import (
+	"net/http"
+	"time"
+
+	"github.com/gin-gonic/gin"
+
+	"warpbox/lib/boxstore"
+	"warpbox/lib/helpers"
+	"warpbox/lib/metastore"
+)
+
+type AccountDashboardView struct {
+	PageTitle        string
+	WindowTitle      string
+	WindowIcon       string
+	PageScripts      []string
+	AccountNav       AccountNavView
+	CSRFToken        string
+	Stats            AccountDashboardStats
+	Statuses         []accountStatusRow
+	Alerts           []accountAlertPreviewRow
+	RecentBoxes      []accountDashboardBoxRow
+	RecentActivity   []accountActivityRow
+	ShowUsersStat    bool
+	CanManageBoxes   bool
+	CanManageUsers   bool
+	CanViewSettings  bool
+	HasAlertsPreview bool
+}
+
+type AccountDashboardStats struct {
+	ActiveBoxes      int
+	StorageUsedLabel string
+	AlertCount       int
+	TotalUsers       int
+	ActiveUsers      int
+	DisabledUsers    int
+}
+
+type accountStatusRow struct {
+	Label    string
+	Value    string
+	Severity string
+}
+
+type accountAlertPreviewRow struct {
+	Severity string
+	Title    string
+	Detail   string
+}
+
+type accountDashboardBoxRow struct {
+	ID             string
+	FileCount      int
+	TotalSizeLabel string
+	CreatedAt      string
+	ExpiresAt      string
+	Flags          string
+	CanManage      bool
+}
+
+type accountActivityRow struct {
+	Time  string
+	Title string
+	Meta  string
+}
+
+func (app *App) handleAccountDashboard(ctx *gin.Context) {
+	actor, ok := currentAccountUser(ctx)
+	if !ok {
+		ctx.Redirect(http.StatusSeeOther, "/account/login")
+		return
+	}
+
+	view, err := app.GetAccountDashboard(ctx, actor)
+	if err != nil {
+		ctx.String(http.StatusInternalServerError, "Could not load account dashboard")
+		return
+	}
+	ctx.HTML(http.StatusOK, "account_dashboard.html", view)
+}
+
+func (app *App) GetAccountDashboard(ctx *gin.Context, actor metastore.User) (AccountDashboardView, error) {
+	perms := currentAccountPermissions(ctx)
+	nav := app.accountNavView(ctx, "dashboard")
+
+	totalSize := int64(0)
+	activeBoxes := 0
+	recentBoxes := []accountDashboardBoxRow{}
+	if perms.AdminBoxesView {
+		summaries, err := boxstore.ListBoxSummaries()
+		if err != nil {
+			return AccountDashboardView{}, err
+		}
+
+		recentBoxes = make([]accountDashboardBoxRow, 0, minInt(len(summaries), 10))
+		for _, summary := range summaries {
+			totalSize += summary.TotalSize
+			if !summary.Expired {
+				activeBoxes++
+			}
+			if len(recentBoxes) < 10 {
+				recentBoxes = append(recentBoxes, accountDashboardBoxRow{
+					ID:             summary.ID,
+					FileCount:      summary.FileCount,
+					TotalSizeLabel: summary.TotalSizeLabel,
+					CreatedAt:      formatAdminTime(summary.CreatedAt),
+					ExpiresAt:      formatAdminTime(summary.ExpiresAt),
+					Flags:          accountBoxFlags(summary.Expired, summary.OneTimeDownload, summary.PasswordProtected),
+					CanManage:      true,
+				})
+			}
+		}
+	}
+
+	stats := AccountDashboardStats{
+		ActiveBoxes:      activeBoxes,
+		StorageUsedLabel: helpers.FormatBytes(totalSize),
+	}
+	alertPreview := []accountAlertPreviewRow{}
+	if perms.AdminAccess {
+		stats.AlertCount, nav.AlertSeverity = app.openAlertSummary()
+		nav.AlertCount = stats.AlertCount
+		alertPreview = app.accountDashboardAlertPreview()
+	}
+
+	showUsersStat := perms.AdminUsersManage
+	if showUsersStat {
+		users, err := app.store.ListUsers()
+		if err != nil {
+			return AccountDashboardView{}, err
+		}
+		stats.TotalUsers = len(users)
+		for _, user := range users {
+			if user.Disabled {
+				stats.DisabledUsers++
+			} else {
+				stats.ActiveUsers++
+			}
+		}
+	}
+
+	return AccountDashboardView{
+		PageTitle:        "WarpBox Account",
+		WindowTitle:      "WarpBox Account Control Panel",
+		WindowIcon:       "W",
+		AccountNav:       nav,
+		CSRFToken:        app.currentCSRFToken(ctx),
+		Stats:            stats,
+		Statuses:         app.accountDashboardStatuses(),
+		Alerts:           alertPreview,
+		RecentBoxes:      recentBoxes,
+		RecentActivity:   accountPlaceholderActivity(actor, ctx),
+		ShowUsersStat:    showUsersStat,
+		CanManageBoxes:   perms.AdminBoxesView,
+		CanManageUsers:   perms.AdminUsersManage,
+		CanViewSettings:  perms.AdminSettingsManage,
+		HasAlertsPreview: true,
+	}, nil
+}
+
+func (app *App) accountDashboardStatuses() []accountStatusRow {
+	return []accountStatusRow{
+		{Label: "Guest uploads", Value: enabledLabel(app.config.GuestUploadsEnabled), Severity: boolSeverity(app.config.GuestUploadsEnabled)},
+		{Label: "API", Value: enabledLabel(app.config.APIEnabled), Severity: boolSeverity(app.config.APIEnabled)},
+		{Label: "ZIP downloads", Value: enabledLabel(app.config.ZipDownloadsEnabled), Severity: boolSeverity(app.config.ZipDownloadsEnabled)},
+		{Label: "One-time boxes", Value: enabledLabel(app.config.OneTimeDownloadsEnabled), Severity: boolSeverity(app.config.OneTimeDownloadsEnabled)},
+	}
+}
+
+func (app *App) accountDashboardAlertPreview() []accountAlertPreviewRow {
+	alerts, err := app.store.ListAlerts(metastore.AlertFilters{Status: metastore.AlertStatusOpen, Sort: "severity"})
+	if err != nil {
+		return nil
+	}
+	rows := make([]accountAlertPreviewRow, 0, minInt(len(alerts), 6))
+	for _, alert := range alerts {
+		if len(rows) == 6 {
+			break
+		}
+		rows = append(rows, accountAlertPreviewRow{
+			Severity: alert.Severity,
+			Title:    alert.Title,
+			Detail:   alert.Description,
+		})
+	}
+	return rows
+}
+
+func accountPlaceholderActivity(actor metastore.User, ctx *gin.Context) []accountActivityRow {
+	now := time.Now().UTC()
+	if value, ok := ctx.Get("accountSession"); ok {
+		if session, ok := value.(metastore.Session); ok {
+			now = session.CreatedAt
+		}
+	}
+	return []accountActivityRow{
+		{
+			Time:  formatAdminTime(now),
+			Title: "Signed in",
+			Meta:  actor.Username + " opened the account dashboard.",
+		},
+		{
+			Time:  "pending",
+			Title: "Audit log not implemented",
+			Meta:  "Recent account activity will use the audit model in a later pass.",
+		},
+	}
+}
+
+func accountBoxFlags(expired bool, oneTime bool, passwordProtected bool) string {
+	flags := []string{}
+	if expired {
+		flags = append(flags, "expired")
+	}
+	if oneTime {
+		flags = append(flags, "one-time")
+	}
+	if passwordProtected {
+		flags = append(flags, "password")
+	}
+	if len(flags) == 0 {
+		return "normal"
+	}
+	out := flags[0]
+	for _, flag := range flags[1:] {
+		out += ", " + flag
+	}
+	return out
+}
+
+func enabledLabel(enabled bool) string {
+	if enabled {
+		return "enabled"
+	}
+	return "disabled"
+}
+
+func boolSeverity(enabled bool) string {
+	if enabled {
+		return "ok"
+	}
+	return "warn"
+}
+
+func minInt(a int, b int) int {
+	if a < b {
+		return a
+	}
+	return b
+}

lib/server/account_settings.go

@@ -0,0 +1,506 @@
+package server
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"sort"
+	"strings"
+	"time"
+
+	"github.com/gin-gonic/gin"
+
+	"warpbox/lib/config"
+	"warpbox/lib/metastore"
+)
+
+type SettingsView struct {
+	PageTitle        string
+	WindowTitle      string
+	WindowIcon       string
+	PageScripts      []string
+	AccountNav       AccountNavView
+	CSRFToken        string
+	Groups           []SettingsGroupView
+	OverridesAllowed bool
+	CanEdit          bool
+	Error            string
+	Notice           string
+}
+
+type SettingsGroupView struct {
+	Key         string
+	Label       string
+	Description string
+	Rows        []SettingsRowView
+}
+
+type SettingsRowView struct {
+	Key          string
+	Label        string
+	Description  string
+	Type         config.SettingType
+	Value        string
+	DisplayValue string
+	Source       string
+	EnvName      string
+	Editable     bool
+	LockedReason string
+	Future       bool
+}
+
+type SettingsBackup struct {
+	Version    int               `json:"version"`
+	ExportedAt string            `json:"exported_at"`
+	Settings   map[string]string `json:"settings"`
+	Metadata   map[string]string `json:"metadata,omitempty"`
+}
+
+type ImportResult struct {
+	Applied int      `json:"applied"`
+	Keys    []string `json:"keys"`
+}
+
+type settingsMeta struct {
+	Group       string
+	Description string
+	Units       string
+	Future      bool
+}
+
+var settingsGroups = []SettingsGroupView{
+	{Key: "uploads", Label: "Uploads", Description: "Guest uploads and upload size defaults."},
+	{Key: "downloads", Label: "Downloads", Description: "ZIP and one-time download behavior."},
+	{Key: "retention", Label: "Retention", Description: "Expiry and renewal defaults."},
+	{Key: "accounts", Label: "Accounts", Description: "Session and account defaults."},
+	{Key: "api", Label: "API", Description: "API surface toggles."},
+	{Key: "storage", Label: "Storage", Description: "Storage paths and hard capacity limits."},
+	{Key: "workers", Label: "Workers", Description: "Background worker timing."},
+	{Key: "box_policy", Label: "Box policy", Description: "Defaults for future owner-managed boxes."},
+}
+
+var settingsMetadata = map[string]settingsMeta{
+	config.SettingGuestUploadsEnabled:       {Group: "uploads", Description: "Allow guests to create upload boxes."},
+	config.SettingDefaultUserMaxFileBytes:   {Group: "uploads", Description: "Default per-user file size limit. Zero means unlimited.", Units: "bytes"},
+	config.SettingDefaultUserMaxBoxBytes:    {Group: "uploads", Description: "Default per-user total box size limit. Zero means unlimited.", Units: "bytes"},
+	config.SettingZipDownloadsEnabled:       {Group: "downloads", Description: "Allow ZIP downloads when a box permits it."},
+	config.SettingOneTimeDownloadsEnabled:   {Group: "downloads", Description: "Allow one-time ZIP handoff boxes."},
+	config.SettingOneTimeDownloadExpirySecs: {Group: "downloads", Description: "How long one-time downloads stay retryable or pending.", Units: "duration"},
+	config.SettingOneTimeDownloadRetryFail:  {Group: "downloads", Description: "Keep one-time boxes retryable after a ZIP writer failure."},
+	config.SettingDefaultGuestExpirySecs:    {Group: "retention", Description: "Default guest box expiry.", Units: "duration"},
+	config.SettingMaxGuestExpirySecs:        {Group: "retention", Description: "Maximum guest box expiry.", Units: "duration"},
+	config.SettingRenewOnAccessEnabled:      {Group: "retention", Description: "Allow expiry renewal when a box is opened."},
+	config.SettingRenewOnDownloadEnabled:    {Group: "retention", Description: "Allow expiry renewal when files are downloaded."},
+	config.SettingSessionTTLSeconds:         {Group: "accounts", Description: "Account session lifetime.", Units: "duration"},
+	config.SettingAPIEnabled:                {Group: "api", Description: "Expose API-style upload/status endpoints."},
+	config.SettingDataDir:                   {Group: "storage", Description: "Base data directory. Environment only."},
+	config.SettingGlobalMaxFileSizeBytes:    {Group: "storage", Description: "Hard global file size cap. Environment only.", Units: "bytes"},
+	config.SettingGlobalMaxBoxSizeBytes:     {Group: "storage", Description: "Hard global box size cap. Environment only.", Units: "bytes"},
+	config.SettingBoxPollIntervalMS:         {Group: "workers", Description: "Browser polling cadence for box status.", Units: "milliseconds"},
+	config.SettingThumbnailBatchSize:        {Group: "workers", Description: "Thumbnail worker batch size."},
+	config.SettingThumbnailIntervalSeconds:  {Group: "workers", Description: "Thumbnail worker interval.", Units: "duration"},
+	config.SettingBoxOwnerEditEnabled:       {Group: "box_policy", Description: "Default: owners may edit their boxes."},
+	config.SettingBoxOwnerRefreshEnabled:    {Group: "box_policy", Description: "Default: owners may refresh box expiry."},
+	config.SettingBoxOwnerMaxRefreshCount:   {Group: "box_policy", Description: "Default maximum number of owner refreshes."},
+	config.SettingBoxOwnerMaxRefreshAmount:  {Group: "box_policy", Description: "Default maximum expiry added per owner refresh.", Units: "duration"},
+	config.SettingBoxOwnerMaxTotalExpiry:    {Group: "box_policy", Description: "Default maximum total box expiry for owner-managed boxes.", Units: "duration"},
+	config.SettingBoxOwnerPasswordEdit:      {Group: "box_policy", Description: "Default: owners may edit box passwords."},
+}
+
+func (app *App) handleAccountSettings(ctx *gin.Context) {
+	actor, ok := currentAccountUser(ctx)
+	if !ok {
+		ctx.Redirect(http.StatusSeeOther, "/account/login")
+		return
+	}
+	view, err := app.ListSettings(ctx, actor)
+	if err != nil {
+		ctx.String(http.StatusForbidden, "Permission denied")
+		return
+	}
+	ctx.HTML(http.StatusOK, "account_settings.html", view)
+}
+
+func (app *App) handleAccountSettingsPost(ctx *gin.Context) {
+	actor, ok := currentAccountUser(ctx)
+	if !ok {
+		ctx.Redirect(http.StatusSeeOther, "/account/login")
+		return
+	}
+
+	if err := ctx.Request.ParseForm(); err != nil {
+		app.renderSettingsWithMessage(ctx, actor, "could not parse settings form", "")
+		return
+	}
+
+	editable := map[string]config.SettingDefinition{}
+	for _, def := range config.EditableDefinitions() {
+		editable[def.Key] = def
+	}
+	for key := range ctx.Request.PostForm {
+		if key == "csrf_token" {
+			continue
+		}
+		if _, ok := editable[key]; ok {
+			continue
+		}
+		if _, ok := config.Definition(key); ok {
+			app.renderSettingsWithMessage(ctx, actor, fmt.Sprintf("setting %q is locked", key), "")
+			return
+		}
+		app.renderSettingsWithMessage(ctx, actor, fmt.Sprintf("unknown setting %q", key), "")
+		return
+	}
+
+	changes := map[string]string{}
+	for _, def := range editable {
+		if def.Type == config.SettingTypeBool {
+			value := "false"
+			if ctx.PostForm(def.Key) == "true" {
+				value = "true"
+			}
+			changes[def.Key] = value
+			continue
+		}
+		if _, exists := ctx.GetPostForm(def.Key); exists {
+			changes[def.Key] = ctx.PostForm(def.Key)
+		}
+	}
+
+	if err := app.UpdateSettings(ctx, actor, changes); err != nil {
+		app.renderSettingsWithMessage(ctx, actor, err.Error(), "")
+		return
+	}
+	ctx.Redirect(http.StatusSeeOther, "/account/settings")
+}
+
+func (app *App) handleAccountSettingsReset(ctx *gin.Context) {
+	actor, ok := currentAccountUser(ctx)
+	if !ok {
+		ctx.Redirect(http.StatusSeeOther, "/account/login")
+		return
+	}
+	if err := app.ResetSettingOverride(ctx, actor, ctx.PostForm("key")); err != nil {
+		app.renderSettingsWithMessage(ctx, actor, err.Error(), "")
+		return
+	}
+	ctx.Redirect(http.StatusSeeOther, "/account/settings")
+}
+
+func (app *App) handleAccountSettingsExport(ctx *gin.Context) {
+	actor, ok := currentAccountUser(ctx)
+	if !ok {
+		ctx.Redirect(http.StatusSeeOther, "/account/login")
+		return
+	}
+	backup, err := app.ExportSettings(ctx, actor)
+	if err != nil {
+		ctx.String(http.StatusForbidden, "Permission denied")
+		return
+	}
+	ctx.Header("Content-Disposition", `attachment; filename="warpbox-settings.json"`)
+	ctx.JSON(http.StatusOK, backup)
+}
+
+func (app *App) handleAccountSettingsImport(ctx *gin.Context) {
+	actor, ok := currentAccountUser(ctx)
+	if !ok {
+		ctx.Redirect(http.StatusSeeOther, "/account/login")
+		return
+	}
+	if !strings.HasPrefix(strings.ToLower(ctx.GetHeader("Content-Type")), "application/json") {
+		ctx.JSON(http.StatusUnsupportedMediaType, gin.H{"error": "settings import requires application/json"})
+		return
+	}
+	var backup SettingsBackup
+	if err := json.NewDecoder(ctx.Request.Body).Decode(&backup); err != nil {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": "invalid settings JSON"})
+		return
+	}
+	result, err := app.ImportSettings(ctx, actor, backup)
+	if err != nil {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+	ctx.JSON(http.StatusOK, result)
+}
+
+func (app *App) ListSettings(ctx *gin.Context, actor metastore.User) (SettingsView, error) {
+	perms := currentAccountPermissions(ctx)
+	if !perms.AdminSettingsManage {
+		return SettingsView{}, fmt.Errorf("permission denied")
+	}
+
+	rows := app.settingsRows(perms.AdminSettingsManage && app.config.AllowAdminSettingsOverride)
+	groups := make([]SettingsGroupView, 0, len(settingsGroups))
+	for _, group := range settingsGroups {
+		copyGroup := group
+		copyGroup.Rows = rows[group.Key]
+		groups = append(groups, copyGroup)
+	}
+
+	return SettingsView{
+		PageTitle:        "WarpBox Settings",
+		WindowTitle:      "WarpBox Account Settings",
+		WindowIcon:       "S",
+		PageScripts:      []string{"/static/js/account-settings.js"},
+		AccountNav:       app.accountNavView(ctx, "settings"),
+		CSRFToken:        app.currentCSRFToken(ctx),
+		Groups:           groups,
+		OverridesAllowed: app.config.AllowAdminSettingsOverride,
+		CanEdit:          app.config.AllowAdminSettingsOverride,
+	}, nil
+}
+
+func (app *App) UpdateSettings(ctx *gin.Context, actor metastore.User, changes map[string]string) error {
+	if err := app.requireSettingsEdit(ctx); err != nil {
+		return err
+	}
+	if !app.config.AllowAdminSettingsOverride {
+		return fmt.Errorf("admin settings overrides are disabled")
+	}
+	if err := validateSettingChanges(changes); err != nil {
+		return err
+	}
+	for key, value := range changes {
+		if err := app.store.SetSetting(key, value); err != nil {
+			return err
+		}
+	}
+	return app.reloadRuntimeConfig()
+}
+
+func (app *App) ResetSettingOverride(ctx *gin.Context, actor metastore.User, key string) error {
+	if err := app.requireSettingsEdit(ctx); err != nil {
+		return err
+	}
+	def, ok := config.Definition(strings.TrimSpace(key))
+	if !ok {
+		return fmt.Errorf("unknown setting %q", key)
+	}
+	if !def.Editable || def.HardLimit {
+		return fmt.Errorf("setting %q cannot be reset from account settings", key)
+	}
+	if err := app.store.DeleteSetting(def.Key); err != nil {
+		return err
+	}
+	return app.reloadRuntimeConfig()
+}
+
+func (app *App) ExportSettings(ctx *gin.Context, actor metastore.User) (SettingsBackup, error) {
+	perms := currentAccountPermissions(ctx)
+	if !perms.AdminSettingsManage {
+		return SettingsBackup{}, fmt.Errorf("permission denied")
+	}
+	settings := map[string]string{}
+	for _, def := range config.EditableDefinitions() {
+		settings[def.Key] = app.config.SettingValue(def.Key)
+	}
+	return SettingsBackup{
+		Version:    1,
+		ExportedAt: time.Now().UTC().Format(time.RFC3339),
+		Settings:   settings,
+		Metadata: map[string]string{
+			"app": "WarpBox",
+		},
+	}, nil
+}
+
+func (app *App) ImportSettings(ctx *gin.Context, actor metastore.User, backup SettingsBackup) (ImportResult, error) {
+	if err := app.requireSettingsEdit(ctx); err != nil {
+		return ImportResult{}, err
+	}
+	if !app.config.AllowAdminSettingsOverride {
+		return ImportResult{}, fmt.Errorf("admin settings overrides are disabled")
+	}
+	if backup.Settings == nil {
+		return ImportResult{}, fmt.Errorf("settings backup has no settings")
+	}
+	if err := validateSettingChanges(backup.Settings); err != nil {
+		return ImportResult{}, err
+	}
+
+	keys := make([]string, 0, len(backup.Settings))
+	for key := range backup.Settings {
+		keys = append(keys, key)
+	}
+	sort.Strings(keys)
+	for _, key := range keys {
+		if err := app.store.SetSetting(key, backup.Settings[key]); err != nil {
+			return ImportResult{}, err
+		}
+	}
+	if err := app.reloadRuntimeConfig(); err != nil {
+		return ImportResult{}, err
+	}
+	return ImportResult{Applied: len(keys), Keys: keys}, nil
+}
+
+func (app *App) renderSettingsWithMessage(ctx *gin.Context, actor metastore.User, errorMessage string, notice string) {
+	view, err := app.ListSettings(ctx, actor)
+	if err != nil {
+		ctx.String(http.StatusForbidden, "Permission denied")
+		return
+	}
+	view.Error = errorMessage
+	view.Notice = notice
+	ctx.HTML(http.StatusOK, "account_settings.html", view)
+}
+
+func (app *App) requireSettingsEdit(ctx *gin.Context) error {
+	perms := currentAccountPermissions(ctx)
+	if !perms.AdminSettingsManage {
+		return fmt.Errorf("permission denied")
+	}
+	return nil
+}
+
+func (app *App) settingsRows(canEdit bool) map[string][]SettingsRowView {
+	out := map[string][]SettingsRowView{}
+	for _, row := range app.config.SettingRows() {
+		meta := settingsMetadata[row.Definition.Key]
+		group := meta.Group
+		if group == "" {
+			group = "accounts"
+		}
+		editable := canEdit && row.Definition.Editable && !row.Definition.HardLimit
+		out[group] = append(out[group], SettingsRowView{
+			Key:          row.Definition.Key,
+			Label:        row.Definition.Label,
+			Description:  meta.Description,
+			Type:         row.Definition.Type,
+			Value:        row.Value,
+			DisplayValue: settingDisplayValue(row.Value, meta.Units),
+			Source:       settingSourceLabel(row.Source, row.Definition),
+			EnvName:      row.Definition.EnvName,
+			Editable:     editable,
+			LockedReason: settingLockedReason(row.Definition, canEdit),
+			Future:       meta.Future,
+		})
+	}
+	return out
+}
+
+func validateSettingChanges(changes map[string]string) error {
+	if len(changes) == 0 {
+		return fmt.Errorf("no settings provided")
+	}
+	cfg, err := config.Load()
+	if err != nil {
+		return err
+	}
+	for key, value := range changes {
+		if _, ok := config.Definition(key); !ok {
+			return fmt.Errorf("unknown setting %q", key)
+		}
+		if err := cfg.ApplyOverride(key, value); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (app *App) reloadRuntimeConfig() error {
+	cfg, err := config.Load()
+	if err != nil {
+		return err
+	}
+	overrides, err := app.store.ListSettings()
+	if err != nil {
+		return err
+	}
+	if err := cfg.ApplyOverrides(overrides); err != nil {
+		return err
+	}
+	app.config = cfg
+	applyBoxstoreRuntimeConfig(cfg)
+	return nil
+}
+
+func settingSourceLabel(source config.Source, def config.SettingDefinition) string {
+	if def.HardLimit {
+		return "hard env"
+	}
+	if !def.Editable {
+		return "locked"
+	}
+	switch source {
+	case config.SourceDB:
+		return "override"
+	case config.SourceEnv:
+		return "env"
+	default:
+		return "default"
+	}
+}
+
+func settingLockedReason(def config.SettingDefinition, canEdit bool) string {
+	if !canEdit {
+		return "settings changes disabled"
+	}
+	if def.HardLimit {
+		return "hard environment limit"
+	}
+	if !def.Editable {
+		return "runtime editing not supported"
+	}
+	return ""
+}
+
+func settingDisplayValue(value string, units string) string {
+	switch units {
+	case "bytes":
+		parsed, ok := parseInt64String(value)
+		if !ok {
+			return value
+		}
+		if parsed == 0 {
+			return "unlimited"
+		}
+		return fmt.Sprintf("%s (%s bytes)", formatBytesForSettings(parsed), value)
+	case "duration":
+		parsed, ok := parseInt64String(value)
+		if !ok {
+			return value
+		}
+		return fmt.Sprintf("%s (%s seconds)", formatDurationForSettings(parsed), value)
+	case "milliseconds":
+		return value + " ms"
+	default:
+		return value
+	}
+}
+
+func parseInt64String(value string) (int64, bool) {
+	var parsed int64
+	if _, err := fmt.Sscan(strings.TrimSpace(value), &parsed); err != nil {
+		return 0, false
+	}
+	return parsed, true
+}
+
+func formatBytesForSettings(value int64) string {
+	units := []string{"B", "KiB", "MiB", "GiB", "TiB"}
+	size := float64(value)
+	unit := 0
+	for size >= 1024 && unit < len(units)-1 {
+		size /= 1024
+		unit++
+	}
+	return fmt.Sprintf("%.1f %s", size, units[unit])
+}
+
+func formatDurationForSettings(seconds int64) string {
+	switch {
+	case seconds == 0:
+		return "none"
+	case seconds%86400 == 0:
+		return fmt.Sprintf("%d days", seconds/86400)
+	case seconds%3600 == 0:
+		return fmt.Sprintf("%d hours", seconds/3600)
+	case seconds%60 == 0:
+		return fmt.Sprintf("%d minutes", seconds/60)
+	default:
+		return fmt.Sprintf("%d seconds", seconds)
+	}
+}

lib/server/account_settings_test.go

@@ -0,0 +1,197 @@
+package server
+
+import (
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"strings"
+	"testing"
+	"time"
+
+	"warpbox/lib/config"
+	"warpbox/lib/metastore"
+)
+
+func TestAccountSettingsPermissionDenied(t *testing.T) {
+	app, _ := setupAccountTestApp(t)
+	user, err := app.store.CreateUserWithPassword("regular", "regular@example.test", "secret", nil)
+	if err != nil {
+		t.Fatalf("CreateUserWithPassword returned error: %v", err)
+	}
+	router := setupAccountTestRouter(t, app)
+	session := createAccountTestSession(t, app, user)
+
+	request := httptest.NewRequest(http.MethodGet, "/account/settings", nil)
+	request.AddCookie(&http.Cookie{Name: accountSessionCookie, Value: session.Token})
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+	if response.Code != http.StatusForbidden {
+		t.Fatalf("expected permission denied, got %d", response.Code)
+	}
+}
+
+func TestAccountSettingsPageLoadsForAdmin(t *testing.T) {
+	app, user := setupAccountTestApp(t)
+	router := setupAccountTestRouter(t, app)
+	session := createAccountTestSession(t, app, user)
+
+	request := httptest.NewRequest(http.MethodGet, "/account/settings", nil)
+	request.AddCookie(&http.Cookie{Name: accountSessionCookie, Value: session.Token})
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+	if response.Code != http.StatusOK {
+		t.Fatalf("expected settings page, got %d body=%s", response.Code, response.Body.String())
+	}
+	for _, text := range []string{"Uploads", "Downloads", "Box policy", "Save Settings"} {
+		if !strings.Contains(response.Body.String(), text) {
+			t.Fatalf("expected settings page to contain %q", text)
+		}
+	}
+}
+
+func TestAccountSettingsValidUpdate(t *testing.T) {
+	app, user := setupAccountTestApp(t)
+	router := setupAccountTestRouter(t, app)
+	session := createAccountTestSession(t, app, user)
+
+	form := url.Values{}
+	form.Set("csrf_token", session.CSRFToken)
+	form.Set(config.SettingAPIEnabled, "false")
+	response := postAccountSettingsForm(router, session, form)
+	if response.Code != http.StatusSeeOther {
+		t.Fatalf("expected settings redirect, got %d body=%s", response.Code, response.Body.String())
+	}
+	if app.config.APIEnabled {
+		t.Fatal("expected API setting to be disabled")
+	}
+	value, ok, err := app.store.GetSetting(config.SettingAPIEnabled)
+	if err != nil || !ok || value != "false" {
+		t.Fatalf("expected API setting override false, got value=%q ok=%v err=%v", value, ok, err)
+	}
+}
+
+func TestAccountSettingsInvalidUpdate(t *testing.T) {
+	app, user := setupAccountTestApp(t)
+	router := setupAccountTestRouter(t, app)
+	session := createAccountTestSession(t, app, user)
+
+	form := url.Values{}
+	form.Set("csrf_token", session.CSRFToken)
+	form.Set(config.SettingSessionTTLSeconds, "1")
+	response := postAccountSettingsForm(router, session, form)
+	if response.Code != http.StatusOK {
+		t.Fatalf("expected settings form render, got %d", response.Code)
+	}
+	if !strings.Contains(response.Body.String(), "must be at least 60") {
+		t.Fatal("expected validation error in response")
+	}
+}
+
+func TestAccountSettingsLockedSettingCannotChange(t *testing.T) {
+	app, user := setupAccountTestApp(t)
+	router := setupAccountTestRouter(t, app)
+	session := createAccountTestSession(t, app, user)
+
+	form := url.Values{}
+	form.Set("csrf_token", session.CSRFToken)
+	form.Set(config.SettingGlobalMaxFileSizeBytes, "1")
+	response := postAccountSettingsForm(router, session, form)
+	if response.Code != http.StatusOK {
+		t.Fatalf("expected settings form render, got %d", response.Code)
+	}
+	if !strings.Contains(response.Body.String(), "locked") {
+		t.Fatal("expected locked setting error")
+	}
+	if value, ok, err := app.store.GetSetting(config.SettingGlobalMaxFileSizeBytes); err != nil || ok || value != "" {
+		t.Fatalf("expected no locked setting override, got value=%q ok=%v err=%v", value, ok, err)
+	}
+}
+
+func TestAccountSettingsImportRejectsUnknownOrInvalidSettings(t *testing.T) {
+	app, user := setupAccountTestApp(t)
+	router := setupAccountTestRouter(t, app)
+	session := createAccountTestSession(t, app, user)
+
+	for _, body := range []string{
+		`{"version":1,"settings":{"not_real":"true"}}`,
+		`{"version":1,"settings":{"session_ttl_seconds":"1"}}`,
+	} {
+		response := postAccountSettingsJSON(router, session, body)
+		if response.Code != http.StatusBadRequest {
+			t.Fatalf("expected bad import for %s, got %d", body, response.Code)
+		}
+	}
+}
+
+func TestAccountSettingsImportAppliesValidSettings(t *testing.T) {
+	app, user := setupAccountTestApp(t)
+	router := setupAccountTestRouter(t, app)
+	session := createAccountTestSession(t, app, user)
+
+	response := postAccountSettingsJSON(router, session, `{"version":1,"settings":{"api_enabled":"false","box_owner_max_refresh_count":"7"}}`)
+	if response.Code != http.StatusOK {
+		t.Fatalf("expected import success, got %d body=%s", response.Code, response.Body.String())
+	}
+	if app.config.APIEnabled {
+		t.Fatal("expected imported API setting to be disabled")
+	}
+	if app.config.BoxOwnerMaxRefreshCount != 7 {
+		t.Fatalf("expected imported box owner refresh count 7, got %d", app.config.BoxOwnerMaxRefreshCount)
+	}
+}
+
+func TestAccountSettingsExportShape(t *testing.T) {
+	app, user := setupAccountTestApp(t)
+	router := setupAccountTestRouter(t, app)
+	session := createAccountTestSession(t, app, user)
+
+	request := httptest.NewRequest(http.MethodGet, "/account/settings/export.json", nil)
+	request.AddCookie(&http.Cookie{Name: accountSessionCookie, Value: session.Token})
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+	if response.Code != http.StatusOK {
+		t.Fatalf("expected export success, got %d", response.Code)
+	}
+	var backup SettingsBackup
+	if err := json.Unmarshal(response.Body.Bytes(), &backup); err != nil {
+		t.Fatalf("Unmarshal returned error: %v", err)
+	}
+	if backup.Version != 1 {
+		t.Fatalf("expected version 1, got %d", backup.Version)
+	}
+	if _, ok := backup.Settings[config.SettingBoxOwnerMaxRefreshCount]; !ok {
+		t.Fatal("expected export to include box owner policy setting")
+	}
+	if _, ok := backup.Settings[config.SettingDataDir]; ok {
+		t.Fatal("did not expect locked data dir in export settings")
+	}
+}
+
+func createAccountTestSession(t *testing.T, app *App, user metastore.User) metastore.Session {
+	t.Helper()
+	session, err := app.store.CreateSession(user.ID, time.Hour)
+	if err != nil {
+		t.Fatalf("CreateSession returned error: %v", err)
+	}
+	return session
+}
+
+func postAccountSettingsForm(router http.Handler, session metastore.Session, form url.Values) *httptest.ResponseRecorder {
+	request := httptest.NewRequest(http.MethodPost, "/account/settings", strings.NewReader(form.Encode()))
+	request.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+	request.AddCookie(&http.Cookie{Name: accountSessionCookie, Value: session.Token})
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+	return response
+}
+
+func postAccountSettingsJSON(router http.Handler, session metastore.Session, body string) *httptest.ResponseRecorder {
+	request := httptest.NewRequest(http.MethodPost, "/account/settings/import.json", strings.NewReader(body))
+	request.Header.Set("Content-Type", "application/json")
+	request.Header.Set("X-CSRF-Token", session.CSRFToken)
+	request.AddCookie(&http.Cookie{Name: accountSessionCookie, Value: session.Token})
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+	return response
+}

lib/server/account_test.go

@@ -0,0 +1,858 @@
+package server
+
+import (
+	"html/template"
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"path/filepath"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/gin-gonic/gin"
+
+	"warpbox/lib/boxstore"
+	"warpbox/lib/config"
+	"warpbox/lib/metastore"
+)
+
+func TestAccountLoginSuccess(t *testing.T) {
+	app, _ := setupAccountTestApp(t)
+	router := setupAccountTestRouter(t, app)
+
+	response := postAccountLogin(router, "admin", "secret")
+	if response.Code != http.StatusSeeOther {
+		t.Fatalf("expected login redirect, got %d", response.Code)
+	}
+	if location := response.Header().Get("Location"); location != "/account" {
+		t.Fatalf("expected redirect to /account, got %q", location)
+	}
+	if cookie := findResponseCookie(response, accountSessionCookie); cookie == nil || cookie.Value == "" {
+		t.Fatal("expected account session cookie")
+	}
+}
+
+func TestAccountLoginFailure(t *testing.T) {
+	app, _ := setupAccountTestApp(t)
+	router := setupAccountTestRouter(t, app)
+
+	response := postAccountLogin(router, "admin", "wrong")
+	if response.Code != http.StatusOK {
+		t.Fatalf("expected failed login to render form, got %d", response.Code)
+	}
+	if cookie := findResponseCookie(response, accountSessionCookie); cookie != nil {
+		t.Fatal("did not expect account session cookie")
+	}
+	if !strings.Contains(response.Body.String(), "not accepted") {
+		t.Fatal("expected login failure message")
+	}
+}
+
+func TestAccountDisabledUserLoginFailure(t *testing.T) {
+	app, user := setupAccountTestApp(t)
+	user.Disabled = true
+	if err := app.store.UpdateUser(user); err != nil {
+		t.Fatalf("UpdateUser returned error: %v", err)
+	}
+	router := setupAccountTestRouter(t, app)
+
+	response := postAccountLogin(router, "admin", "secret")
+	if response.Code != http.StatusOK {
+		t.Fatalf("expected disabled login to render form, got %d", response.Code)
+	}
+	if cookie := findResponseCookie(response, accountSessionCookie); cookie != nil {
+		t.Fatal("did not expect account session cookie")
+	}
+	if !strings.Contains(response.Body.String(), "not accepted") {
+		t.Fatal("expected login failure message")
+	}
+}
+
+func TestAccountLogoutRequiresCSRF(t *testing.T) {
+	app, user := setupAccountTestApp(t)
+	router := setupAccountTestRouter(t, app)
+	session, err := app.store.CreateSession(user.ID, time.Hour)
+	if err != nil {
+		t.Fatalf("CreateSession returned error: %v", err)
+	}
+
+	request := httptest.NewRequest(http.MethodPost, "/account/logout", nil)
+	request.AddCookie(&http.Cookie{Name: accountSessionCookie, Value: session.Token})
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+	if response.Code != http.StatusForbidden {
+		t.Fatalf("expected missing CSRF token to be forbidden, got %d", response.Code)
+	}
+}
+
+func TestAccountDashboardRequiresAuth(t *testing.T) {
+	app, _ := setupAccountTestApp(t)
+	router := setupAccountTestRouter(t, app)
+
+	request := httptest.NewRequest(http.MethodGet, "/account", nil)
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+	if response.Code != http.StatusSeeOther {
+		t.Fatalf("expected dashboard redirect, got %d", response.Code)
+	}
+	if location := response.Header().Get("Location"); location != "/account/login" {
+		t.Fatalf("expected redirect to /account/login, got %q", location)
+	}
+}
+
+func TestAccountDashboardLoadsForBootstrapAdmin(t *testing.T) {
+	app, user := setupAccountTestApp(t)
+	router := setupAccountTestRouter(t, app)
+	session, err := app.store.CreateSession(user.ID, time.Hour)
+	if err != nil {
+		t.Fatalf("CreateSession returned error: %v", err)
+	}
+
+	request := httptest.NewRequest(http.MethodGet, "/account", nil)
+	request.AddCookie(&http.Cookie{Name: accountSessionCookie, Value: session.Token})
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+	if response.Code != http.StatusOK {
+		t.Fatalf("expected dashboard to load, got %d", response.Code)
+	}
+	body := response.Body.String()
+	for _, text := range []string{"Dashboard", "Recent Boxes", "Users"} {
+		if !strings.Contains(body, text) {
+			t.Fatalf("expected dashboard body to contain %q", text)
+		}
+	}
+}
+
+func TestAccountDashboardHidesAdminOnlyLinksForRegularUser(t *testing.T) {
+	app, _ := setupAccountTestApp(t)
+	user, err := app.store.CreateUserWithPassword("maya", "maya@example.test", "secret", nil)
+	if err != nil {
+		t.Fatalf("CreateUserWithPassword returned error: %v", err)
+	}
+	router := setupAccountTestRouter(t, app)
+	session, err := app.store.CreateSession(user.ID, time.Hour)
+	if err != nil {
+		t.Fatalf("CreateSession returned error: %v", err)
+	}
+
+	request := httptest.NewRequest(http.MethodGet, "/account", nil)
+	request.AddCookie(&http.Cookie{Name: accountSessionCookie, Value: session.Token})
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+	if response.Code != http.StatusOK {
+		t.Fatalf("expected dashboard to load, got %d", response.Code)
+	}
+	body := response.Body.String()
+	for _, text := range []string{">Users<", ">Settings<"} {
+		if strings.Contains(body, text) {
+			t.Fatalf("expected dashboard body to hide %q", text)
+		}
+	}
+}
+
+func TestAdminEntryRedirectsToAccount(t *testing.T) {
+	app, _ := setupAccountTestApp(t)
+	router := setupAccountTestRouter(t, app)
+
+	cases := map[string]string{
+		"/admin/login": "/account/login",
+		"/admin":       "/account",
+	}
+	for path, wantLocation := range cases {
+		request := httptest.NewRequest(http.MethodGet, path, nil)
+		response := httptest.NewRecorder()
+		router.ServeHTTP(response, request)
+		if response.Code != http.StatusSeeOther {
+			t.Fatalf("expected %s redirect, got %d", path, response.Code)
+		}
+		if location := response.Header().Get("Location"); location != wantLocation {
+			t.Fatalf("expected %s to redirect to %s, got %q", path, wantLocation, location)
+		}
+	}
+}
+
+func setupAccountTestApp(t *testing.T) (*App, metastore.User) {
+	t.Helper()
+	gin.SetMode(gin.TestMode)
+
+	restoreUploadRoot := boxstore.UploadRoot()
+	t.Cleanup(func() { boxstore.SetUploadRoot(restoreUploadRoot) })
+	boxstore.SetUploadRoot(t.TempDir())
+
+	store, err := metastore.Open(t.TempDir())
+	if err != nil {
+		t.Fatalf("Open returned error: %v", err)
+	}
+	t.Cleanup(func() { _ = store.Close() })
+
+	cfg, err := config.Load()
+	if err != nil {
+		t.Fatalf("Load returned error: %v", err)
+	}
+	cfg.AdminUsername = "admin"
+	cfg.AdminPassword = "secret"
+	cfg.AdminEmail = "admin@example.test"
+	cfg.AdminEnabled = config.AdminEnabledAuto
+	cfg.SessionTTLSeconds = 3600
+	bootstrap, err := metastore.BootstrapAdmin(cfg, store)
+	if err != nil {
+		t.Fatalf("BootstrapAdmin returned error: %v", err)
+	}
+	if bootstrap.AdminUser == nil {
+		t.Fatal("expected bootstrap admin user")
+	}
+
+	app := &App{
+		config:            cfg,
+		store:             store,
+		adminLoginEnabled: bootstrap.AdminLoginEnabled,
+	}
+	return app, *bootstrap.AdminUser
+}
+
+func setupAccountTestRouter(t *testing.T, app *App) *gin.Engine {
+	t.Helper()
+	router := gin.New()
+	templates, err := template.ParseGlob(filepath.Join("..", "..", "templates", "*.html"))
+	if err != nil {
+		t.Fatalf("ParseGlob returned error: %v", err)
+	}
+	router.SetHTMLTemplate(templates)
+	app.registerAccountRoutes(router)
+	app.registerAdminRoutes(router)
+	return router
+}
+
+func postAccountLogin(router *gin.Engine, username string, password string) *httptest.ResponseRecorder {
+	form := url.Values{}
+	form.Set("username", username)
+	form.Set("password", password)
+	request := httptest.NewRequest(http.MethodPost, "/account/login", strings.NewReader(form.Encode()))
+	request.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+	return response
+}
+
+func findResponseCookie(response *httptest.ResponseRecorder, name string) *http.Cookie {
+	for _, cookie := range response.Result().Cookies() {
+		if cookie.Name == name {
+			return cookie
+		}
+	}
+	return nil
+}
+
+func TestUsersPagePermissionDeniedForNoPerms(t *testing.T) {
+	app, _ := setupAccountTestApp(t)
+	user, err := app.store.CreateUserWithPassword("viewer", "viewer@example.test", "secret", nil)
+	if err != nil {
+		t.Fatalf("CreateUserWithPassword returned error: %v", err)
+	}
+	router := setupAccountTestRouter(t, app)
+	session, err := app.store.CreateSession(user.ID, time.Hour)
+	if err != nil {
+		t.Fatalf("CreateSession returned error: %v", err)
+	}
+
+	request := httptest.NewRequest(http.MethodGet, "/account/users", nil)
+	request.AddCookie(&http.Cookie{Name: accountSessionCookie, Value: session.Token})
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+	if response.Code != http.StatusForbidden {
+		t.Fatalf("expected permission denied, got %d", response.Code)
+	}
+	if !strings.Contains(response.Body.String(), "Permission denied") {
+		t.Fatal("expected permission denied message")
+	}
+}
+
+func TestUsersPageLoadsForAdmin(t *testing.T) {
+	app, user := setupAccountTestApp(t)
+	router := setupAccountTestRouter(t, app)
+	session, err := app.store.CreateSession(user.ID, time.Hour)
+	if err != nil {
+		t.Fatalf("CreateSession returned error: %v", err)
+	}
+
+	request := httptest.NewRequest(http.MethodGet, "/account/users", nil)
+	request.AddCookie(&http.Cookie{Name: accountSessionCookie, Value: session.Token})
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+	if response.Code != http.StatusOK {
+		t.Fatalf("expected users page to load, got %d", response.Code)
+	}
+	body := response.Body.String()
+	for _, text := range []string{"WarpBox Users", "Create or Invite", "Total users"} {
+		if !strings.Contains(body, text) {
+			t.Fatalf("expected users page body to contain %q", text)
+		}
+	}
+}
+
+func TestUsersPageListFilters(t *testing.T) {
+	app, user := setupAccountTestApp(t)
+	_, err := app.store.CreateUserWithPassword("beta", "beta@example.test", "secret", nil)
+	if err != nil {
+		t.Fatalf("CreateUserWithPassword returned error: %v", err)
+	}
+	router := setupAccountTestRouter(t, app)
+	session, err := app.store.CreateSession(user.ID, time.Hour)
+	if err != nil {
+		t.Fatalf("CreateSession returned error: %v", err)
+	}
+
+	request := httptest.NewRequest(http.MethodGet, "/account/users?q=beta", nil)
+	request.AddCookie(&http.Cookie{Name: accountSessionCookie, Value: session.Token})
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+	if response.Code != http.StatusOK {
+		t.Fatalf("expected users page to load, got %d", response.Code)
+	}
+	body := response.Body.String()
+	if !strings.Contains(body, "beta") {
+		t.Fatal("expected filtered list to contain beta")
+	}
+	if !strings.Contains(body, "1 matching user(s)") {
+		t.Fatalf("expected 1 matching user for beta filter, got body: %s", body)
+	}
+}
+
+func TestUserCreation(t *testing.T) {
+	app, user := setupAccountTestApp(t)
+	router := setupAccountTestRouter(t, app)
+	session, err := app.store.CreateSession(user.ID, time.Hour)
+	if err != nil {
+		t.Fatalf("CreateSession returned error: %v", err)
+	}
+
+	form := url.Values{}
+	form.Set("csrf_token", session.CSRFToken)
+	form.Set("action", "create")
+	form.Set("mode", "create")
+	form.Set("username", "newuser")
+	form.Set("email", "new@example.test")
+	form.Set("password", "password123")
+
+	request := httptest.NewRequest(http.MethodPost, "/account/users", strings.NewReader(form.Encode()))
+	request.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+	request.AddCookie(&http.Cookie{Name: accountSessionCookie, Value: session.Token})
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+
+	if response.Code != http.StatusSeeOther {
+		t.Fatalf("expected redirect after create, got %d", response.Code)
+	}
+
+	created, ok, err := app.store.GetUserByUsername("newuser")
+	if err != nil || !ok {
+		t.Fatal("expected newuser to exist")
+	}
+	if created.Disabled {
+		t.Fatal("expected newuser to be active")
+	}
+}
+
+func TestUserInviteCreation(t *testing.T) {
+	app, user := setupAccountTestApp(t)
+	router := setupAccountTestRouter(t, app)
+	session, err := app.store.CreateSession(user.ID, time.Hour)
+	if err != nil {
+		t.Fatalf("CreateSession returned error: %v", err)
+	}
+
+	form := url.Values{}
+	form.Set("csrf_token", session.CSRFToken)
+	form.Set("action", "create")
+	form.Set("mode", "invite")
+	form.Set("username", "invited")
+	form.Set("email", "invited@example.test")
+
+	request := httptest.NewRequest(http.MethodPost, "/account/users", strings.NewReader(form.Encode()))
+	request.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+	request.AddCookie(&http.Cookie{Name: accountSessionCookie, Value: session.Token})
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+
+	if response.Code != http.StatusSeeOther {
+		t.Fatalf("expected redirect after invite, got %d", response.Code)
+	}
+
+	created, ok, err := app.store.GetUserByUsername("invited")
+	if err != nil || !ok {
+		t.Fatal("expected invited user to exist")
+	}
+	if !created.Disabled {
+		t.Fatal("expected invited user to be disabled")
+	}
+	if !strings.HasPrefix(created.PasswordHash, "invite/") {
+		t.Fatal("expected invited user to have invite prefix")
+	}
+}
+
+func TestBulkDisableRejectsSelf(t *testing.T) {
+	app, user := setupAccountTestApp(t)
+	router := setupAccountTestRouter(t, app)
+	session, err := app.store.CreateSession(user.ID, time.Hour)
+	if err != nil {
+		t.Fatalf("CreateSession returned error: %v", err)
+	}
+
+	form := url.Values{}
+	form.Set("csrf_token", session.CSRFToken)
+	form.Set("selected_ids", user.ID)
+
+	request := httptest.NewRequest(http.MethodPost, "/account/users/bulk/disable", strings.NewReader(form.Encode()))
+	request.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+	request.AddCookie(&http.Cookie{Name: accountSessionCookie, Value: session.Token})
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+
+	if response.Code != http.StatusSeeOther {
+		t.Fatalf("expected redirect, got %d", response.Code)
+	}
+	location := response.Header().Get("Location")
+	if !strings.Contains(location, "cannot disable yourself") && !strings.Contains(location, "error=") {
+		t.Fatalf("expected self-disable rejection, got location %q", location)
+	}
+}
+
+func TestBulkDisableProtectsFinalAdmin(t *testing.T) {
+	app, user := setupAccountTestApp(t)
+	adminTag, ok, err := app.store.GetTagByName(metastore.AdminTagName)
+	if err != nil || !ok || adminTag.ID == "" {
+		t.Fatal("expected admin tag")
+	}
+	second, err := app.store.CreateUserWithPassword("admin2", "admin2@example.test", "secret", []string{adminTag.ID})
+	if err != nil {
+		t.Fatalf("CreateUserWithPassword returned error: %v", err)
+	}
+
+	// Admin tries to disable the other admin (not self): should work since self remains.
+	router := setupAccountTestRouter(t, app)
+	session, err := app.store.CreateSession(user.ID, time.Hour)
+	if err != nil {
+		t.Fatalf("CreateSession returned error: %v", err)
+	}
+
+	form := url.Values{}
+	form.Set("csrf_token", session.CSRFToken)
+	form.Set("selected_ids", second.ID)
+
+	request := httptest.NewRequest(http.MethodPost, "/account/users/bulk/disable", strings.NewReader(form.Encode()))
+	request.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+	request.AddCookie(&http.Cookie{Name: accountSessionCookie, Value: session.Token})
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+
+	if response.Code != http.StatusSeeOther {
+		t.Fatalf("expected success redirect, got %d", response.Code)
+	}
+	location := response.Header().Get("Location")
+	if !strings.Contains(location, "user(s) disabled") {
+		t.Fatalf("expected success message, got %q", location)
+	}
+
+	// Verify admin2 is disabled, admin1 still active
+	disabledUser, ok, _ := app.store.GetUserByUsername("admin2")
+	if !ok || !disabledUser.Disabled {
+		t.Fatal("expected admin2 to be disabled")
+	}
+	adminUser, ok, _ := app.store.GetUserByUsername("admin")
+	if !ok || adminUser.Disabled {
+		t.Fatal("expected admin to remain active")
+	}
+
+	// Now try to disable the only remaining admin (self): should be rejected
+	form2 := url.Values{}
+	form2.Set("csrf_token", session.CSRFToken)
+	form2.Set("selected_ids", user.ID)
+
+	req2 := httptest.NewRequest(http.MethodPost, "/account/users/bulk/disable", strings.NewReader(form2.Encode()))
+	req2.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+	req2.AddCookie(&http.Cookie{Name: accountSessionCookie, Value: session.Token})
+	resp2 := httptest.NewRecorder()
+	router.ServeHTTP(resp2, req2)
+
+	if resp2.Code != http.StatusSeeOther {
+		t.Fatalf("expected redirect for self-disable rejection, got %d", resp2.Code)
+	}
+	loc2 := resp2.Header().Get("Location")
+	if !strings.Contains(loc2, "cannot disable yourself") {
+		t.Fatalf("expected self-disable rejection, got %q", loc2)
+	}
+}
+
+func TestUserEditPagePermissionDenied(t *testing.T) {
+	app, _ := setupAccountTestApp(t)
+	regular, err := app.store.CreateUserWithPassword("viewer2", "viewer2@example.test", "secret", nil)
+	if err != nil {
+		t.Fatalf("CreateUserWithPassword: %v", err)
+	}
+	router := setupAccountTestRouter(t, app)
+	session, err := app.store.CreateSession(regular.ID, time.Hour)
+	if err != nil {
+		t.Fatalf("CreateSession: %v", err)
+	}
+
+	request := httptest.NewRequest(http.MethodGet, "/account/users/"+regular.ID, nil)
+	request.AddCookie(&http.Cookie{Name: accountSessionCookie, Value: session.Token})
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+	if response.Code != http.StatusForbidden {
+		t.Fatalf("expected 403, got %d", response.Code)
+	}
+}
+
+func TestUserEditPageLoadsForAdmin(t *testing.T) {
+	app, admin := setupAccountTestApp(t)
+	target, err := app.store.CreateUserWithPassword("edittarget", "edittarget@example.test", "secret", nil)
+	if err != nil {
+		t.Fatalf("CreateUserWithPassword: %v", err)
+	}
+	router := setupAccountTestRouter(t, app)
+	session, err := app.store.CreateSession(admin.ID, time.Hour)
+	if err != nil {
+		t.Fatalf("CreateSession: %v", err)
+	}
+
+	request := httptest.NewRequest(http.MethodGet, "/account/users/"+target.ID, nil)
+	request.AddCookie(&http.Cookie{Name: accountSessionCookie, Value: session.Token})
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+	if response.Code != http.StatusOK {
+		t.Fatalf("expected 200, got %d", response.Code)
+	}
+	body := response.Body.String()
+	for _, text := range []string{"edittarget", "Access rights", "Limits", "Setting overrides", "Resolved policy"} {
+		if !strings.Contains(body, text) {
+			t.Fatalf("expected body to contain %q", text)
+		}
+	}
+}
+
+func TestUserEditProfileUpdate(t *testing.T) {
+	app, admin := setupAccountTestApp(t)
+	target, err := app.store.CreateUserWithPassword("origname", "orig@example.test", "secret", nil)
+	if err != nil {
+		t.Fatalf("CreateUserWithPassword: %v", err)
+	}
+	router := setupAccountTestRouter(t, app)
+	session, err := app.store.CreateSession(admin.ID, time.Hour)
+	if err != nil {
+		t.Fatalf("CreateSession: %v", err)
+	}
+
+	form := url.Values{}
+	form.Set("csrf_token", session.CSRFToken)
+	form.Set("username", "newname")
+	form.Set("email", "new@example.test")
+	form.Set("admin_note", "test note")
+	form.Set("state", "active")
+
+	request := httptest.NewRequest(http.MethodPost, "/account/users/"+target.ID, strings.NewReader(form.Encode()))
+	request.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+	request.AddCookie(&http.Cookie{Name: accountSessionCookie, Value: session.Token})
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+
+	if response.Code != http.StatusSeeOther {
+		t.Fatalf("expected redirect, got %d", response.Code)
+	}
+
+	updated, ok, _ := app.store.GetUser(target.ID)
+	if !ok {
+		t.Fatal("user not found after update")
+	}
+	if updated.Username != "newname" {
+		t.Fatalf("expected username newname, got %q", updated.Username)
+	}
+	if updated.AdminNote != "test note" {
+		t.Fatalf("expected admin note, got %q", updated.AdminNote)
+	}
+}
+
+func TestUserEditAccessRightsUpdate(t *testing.T) {
+	app, admin := setupAccountTestApp(t)
+	target, err := app.store.CreateUserWithPassword("perm_target", "perm@example.test", "secret", nil)
+	if err != nil {
+		t.Fatalf("CreateUserWithPassword: %v", err)
+	}
+	router := setupAccountTestRouter(t, app)
+	session, err := app.store.CreateSession(admin.ID, time.Hour)
+	if err != nil {
+		t.Fatalf("CreateSession: %v", err)
+	}
+
+	form := url.Values{}
+	form.Set("csrf_token", session.CSRFToken)
+	form.Set("username", target.Username)
+	form.Set("email", target.Email)
+	form.Set("upload_allowed", "1")
+	form.Set("zip_download_allowed", "1")
+
+	request := httptest.NewRequest(http.MethodPost, "/account/users/"+target.ID, strings.NewReader(form.Encode()))
+	request.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+	request.AddCookie(&http.Cookie{Name: accountSessionCookie, Value: session.Token})
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+
+	if response.Code != http.StatusSeeOther {
+		t.Fatalf("expected redirect, got %d", response.Code)
+	}
+
+	updated, ok, _ := app.store.GetUser(target.ID)
+	if !ok || updated.PermOverrides == nil {
+		t.Fatal("expected perm overrides to be set")
+	}
+	if updated.PermOverrides.UploadAllowed == nil || !*updated.PermOverrides.UploadAllowed {
+		t.Fatal("expected upload_allowed=true")
+	}
+	if updated.PermOverrides.ZipDownloadAllowed == nil || !*updated.PermOverrides.ZipDownloadAllowed {
+		t.Fatal("expected zip_download_allowed=true")
+	}
+}
+
+func TestUserEditLimitsUpdate(t *testing.T) {
+	app, admin := setupAccountTestApp(t)
+	target, err := app.store.CreateUserWithPassword("limits_target", "limits@example.test", "secret", nil)
+	if err != nil {
+		t.Fatalf("CreateUserWithPassword: %v", err)
+	}
+	router := setupAccountTestRouter(t, app)
+	session, err := app.store.CreateSession(admin.ID, time.Hour)
+	if err != nil {
+		t.Fatalf("CreateSession: %v", err)
+	}
+
+	form := url.Values{}
+	form.Set("csrf_token", session.CSRFToken)
+	form.Set("username", target.Username)
+	form.Set("email", target.Email)
+	form.Set("max_file_size_bytes", "1073741824")
+	form.Set("max_expiry_seconds", "86400")
+
+	request := httptest.NewRequest(http.MethodPost, "/account/users/"+target.ID, strings.NewReader(form.Encode()))
+	request.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+	request.AddCookie(&http.Cookie{Name: accountSessionCookie, Value: session.Token})
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+
+	if response.Code != http.StatusSeeOther {
+		t.Fatalf("expected redirect, got %d", response.Code)
+	}
+
+	updated, ok, _ := app.store.GetUser(target.ID)
+	if !ok {
+		t.Fatal("user not found")
+	}
+	if updated.MaxFileSizeBytes == nil || *updated.MaxFileSizeBytes != 1073741824 {
+		t.Fatalf("expected max_file_size_bytes=1073741824, got %v", updated.MaxFileSizeBytes)
+	}
+	if updated.MaxExpirySeconds == nil || *updated.MaxExpirySeconds != 86400 {
+		t.Fatalf("expected max_expiry_seconds=86400, got %v", updated.MaxExpirySeconds)
+	}
+}
+
+func TestUserEditInvalidLimitRejected(t *testing.T) {
+	app, admin := setupAccountTestApp(t)
+	target, err := app.store.CreateUserWithPassword("badlimit", "badlimit@example.test", "secret", nil)
+	if err != nil {
+		t.Fatalf("CreateUserWithPassword: %v", err)
+	}
+	router := setupAccountTestRouter(t, app)
+	session, err := app.store.CreateSession(admin.ID, time.Hour)
+	if err != nil {
+		t.Fatalf("CreateSession: %v", err)
+	}
+
+	form := url.Values{}
+	form.Set("csrf_token", session.CSRFToken)
+	form.Set("username", target.Username)
+	form.Set("email", target.Email)
+	form.Set("max_file_size_bytes", "notanumber")
+
+	request := httptest.NewRequest(http.MethodPost, "/account/users/"+target.ID, strings.NewReader(form.Encode()))
+	request.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+	request.AddCookie(&http.Cookie{Name: accountSessionCookie, Value: session.Token})
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+
+	if response.Code != http.StatusSeeOther {
+		t.Fatalf("expected redirect, got %d", response.Code)
+	}
+	location := response.Header().Get("Location")
+	if !strings.Contains(location, "error=") {
+		t.Fatalf("expected error redirect, got %q", location)
+	}
+}
+
+func TestUserEditSelfDisableRejected(t *testing.T) {
+	app, admin := setupAccountTestApp(t)
+	router := setupAccountTestRouter(t, app)
+	session, err := app.store.CreateSession(admin.ID, time.Hour)
+	if err != nil {
+		t.Fatalf("CreateSession: %v", err)
+	}
+
+	form := url.Values{}
+	form.Set("csrf_token", session.CSRFToken)
+	form.Set("username", admin.Username)
+	form.Set("email", admin.Email)
+	form.Set("state", "disabled")
+
+	request := httptest.NewRequest(http.MethodPost, "/account/users/"+admin.ID, strings.NewReader(form.Encode()))
+	request.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+	request.AddCookie(&http.Cookie{Name: accountSessionCookie, Value: session.Token})
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+
+	if response.Code != http.StatusSeeOther {
+		t.Fatalf("expected redirect, got %d", response.Code)
+	}
+	location := response.Header().Get("Location")
+	if !strings.Contains(location, "error=") {
+		t.Fatalf("expected error redirect, got %q", location)
+	}
+
+	unchanged, _, _ := app.store.GetUser(admin.ID)
+	if unchanged.Disabled {
+		t.Fatal("admin should not have been disabled")
+	}
+}
+
+func TestUserEditLastAdminProtected(t *testing.T) {
+	app, admin := setupAccountTestApp(t)
+	router := setupAccountTestRouter(t, app)
+	session, err := app.store.CreateSession(admin.ID, time.Hour)
+	if err != nil {
+		t.Fatalf("CreateSession: %v", err)
+	}
+
+	// try to remove admin tag from the only admin via is_admin=0 (unchecked)
+	form := url.Values{}
+	form.Set("csrf_token", session.CSRFToken)
+	form.Set("username", admin.Username)
+	form.Set("email", admin.Email)
+	// is_admin NOT set → wantsAdmin=false → should be blocked
+
+	request := httptest.NewRequest(http.MethodPost, "/account/users/"+admin.ID, strings.NewReader(form.Encode()))
+	request.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+	request.AddCookie(&http.Cookie{Name: accountSessionCookie, Value: session.Token})
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+
+	if response.Code != http.StatusSeeOther {
+		t.Fatalf("expected redirect, got %d", response.Code)
+	}
+	location := response.Header().Get("Location")
+	if !strings.Contains(location, "error=") {
+		t.Fatalf("expected error for last-admin removal, got %q", location)
+	}
+}
+
+func TestUserEditPasswordReset(t *testing.T) {
+	app, admin := setupAccountTestApp(t)
+	target, err := app.store.CreateUserWithPassword("resetme", "resetme@example.test", "oldpass", nil)
+	if err != nil {
+		t.Fatalf("CreateUserWithPassword: %v", err)
+	}
+	router := setupAccountTestRouter(t, app)
+	session, err := app.store.CreateSession(admin.ID, time.Hour)
+	if err != nil {
+		t.Fatalf("CreateSession: %v", err)
+	}
+
+	form := url.Values{}
+	form.Set("csrf_token", session.CSRFToken)
+
+	request := httptest.NewRequest(http.MethodPost, "/account/users/"+target.ID+"/password/reset", strings.NewReader(form.Encode()))
+	request.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+	request.AddCookie(&http.Cookie{Name: accountSessionCookie, Value: session.Token})
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+
+	if response.Code != http.StatusSeeOther {
+		t.Fatalf("expected redirect, got %d", response.Code)
+	}
+	location := response.Header().Get("Location")
+	if !strings.Contains(location, "success=") {
+		t.Fatalf("expected success redirect, got %q", location)
+	}
+
+	updated, _, _ := app.store.GetUser(target.ID)
+	if metastore.VerifyPassword(updated.PasswordHash, "oldpass") {
+		t.Fatal("old password should no longer work after reset")
+	}
+}
+
+func TestUserEditRevokeSessions(t *testing.T) {
+	app, admin := setupAccountTestApp(t)
+	target, err := app.store.CreateUserWithPassword("revokeme", "revokeme@example.test", "secret", nil)
+	if err != nil {
+		t.Fatalf("CreateUserWithPassword: %v", err)
+	}
+	targetSession, err := app.store.CreateSession(target.ID, time.Hour)
+	if err != nil {
+		t.Fatalf("CreateSession: %v", err)
+	}
+	router := setupAccountTestRouter(t, app)
+	adminSession, err := app.store.CreateSession(admin.ID, time.Hour)
+	if err != nil {
+		t.Fatalf("CreateSession: %v", err)
+	}
+
+	form := url.Values{}
+	form.Set("csrf_token", adminSession.CSRFToken)
+
+	request := httptest.NewRequest(http.MethodPost, "/account/users/"+target.ID+"/sessions/revoke", strings.NewReader(form.Encode()))
+	request.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+	request.AddCookie(&http.Cookie{Name: accountSessionCookie, Value: adminSession.Token})
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+
+	if response.Code != http.StatusSeeOther {
+		t.Fatalf("expected redirect, got %d", response.Code)
+	}
+
+	_, stillValid, _ := app.store.GetSession(targetSession.Token)
+	if stillValid {
+		t.Fatal("target session should have been revoked")
+	}
+}
+
+func TestBulkRevokeSessions(t *testing.T) {
+	app, user := setupAccountTestApp(t)
+	router := setupAccountTestRouter(t, app)
+	session, err := app.store.CreateSession(user.ID, time.Hour)
+	if err != nil {
+		t.Fatalf("CreateSession returned error: %v", err)
+	}
+
+	other, err := app.store.CreateUserWithPassword("other", "other@example.test", "secret", nil)
+	if err != nil {
+		t.Fatalf("CreateUserWithPassword returned error: %v", err)
+	}
+	if _, err := app.store.CreateSession(other.ID, time.Hour); err != nil {
+		t.Fatalf("CreateSession returned error: %v", err)
+	}
+
+	form := url.Values{}
+	form.Set("csrf_token", session.CSRFToken)
+	form.Set("selected_ids", other.ID)
+
+	request := httptest.NewRequest(http.MethodPost, "/account/users/bulk/revoke-sessions", strings.NewReader(form.Encode()))
+	request.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+	request.AddCookie(&http.Cookie{Name: accountSessionCookie, Value: session.Token})
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+
+	if response.Code != http.StatusSeeOther {
+		t.Fatalf("expected redirect, got %d", response.Code)
+	}
+	location := response.Header().Get("Location")
+	if !strings.Contains(location, "Sessions revoked") {
+		t.Fatalf("expected success message, got %q", location)
+	}
+}

lib/server/account_user_edit.go

@@ -0,0 +1,557 @@
+package server
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"strings"
+
+	"github.com/gin-gonic/gin"
+
+	"warpbox/lib/metastore"
+)
+
+type UserEditView struct {
+	PageTitle   string
+	WindowTitle string
+	WindowIcon  string
+	PageScripts []string
+	AccountNav  AccountNavView
+	CSRFToken   string
+	Target      metastore.User
+	Tags        []metastore.Tag
+	AdminTagID  string
+	IsAdmin     bool
+	IsPending   bool
+	Status      string
+	Perms       metastore.EffectivePermissions
+	PolicyJSON  string
+	CanManage   bool
+	IsSelf      bool
+	Error       string
+	Success     string
+	// precomputed display values
+	TagNames       string
+	CreatedAtStr   string
+	UpdatedAtStr   string
+	MaxFileSizeStr string
+	MaxBoxSizeStr  string
+	MaxExpiryStr   string
+	// precomputed perm override checkbox states
+	Check map[string]bool
+}
+
+func (app *App) handleAccountUserEdit(ctx *gin.Context) {
+	actor, ok := currentAccountUser(ctx)
+	if !ok {
+		ctx.Redirect(http.StatusSeeOther, "/account/login")
+		return
+	}
+
+	perms := currentAccountPermissions(ctx)
+	if !perms.AdminUsersView && !perms.AdminUsersManage {
+		ctx.String(http.StatusForbidden, "Permission denied")
+		return
+	}
+
+	userID := strings.TrimSpace(ctx.Param("id"))
+	view, err := app.buildUserEditView(ctx, actor, userID, perms.AdminUsersManage, "", "")
+	if err != nil {
+		ctx.String(http.StatusNotFound, "User not found")
+		return
+	}
+	ctx.HTML(http.StatusOK, "account_user_edit.html", view)
+}
+
+func (app *App) handleAccountUserEditPost(ctx *gin.Context) {
+	actor, ok := currentAccountUser(ctx)
+	if !ok {
+		ctx.Redirect(http.StatusSeeOther, "/account/login")
+		return
+	}
+
+	perms := currentAccountPermissions(ctx)
+	if !perms.AdminUsersManage {
+		ctx.String(http.StatusForbidden, "Permission denied")
+		return
+	}
+
+	userID := strings.TrimSpace(ctx.Param("id"))
+	target, found, err := app.store.GetUser(userID)
+	if err != nil || !found {
+		redirectUserEdit(ctx, userID, "User not found.", "")
+		return
+	}
+
+	// profile
+	username := strings.TrimSpace(ctx.PostForm("username"))
+	email := strings.TrimSpace(ctx.PostForm("email"))
+	adminNote := strings.TrimSpace(ctx.PostForm("admin_note"))
+	if username == "" {
+		redirectUserEdit(ctx, userID, "Username is required.", "")
+		return
+	}
+
+	// state (cannot change pending via this field)
+	isPending := strings.HasPrefix(target.PasswordHash, "invite/")
+	if !isPending {
+		stateVal := ctx.PostForm("state")
+		switch stateVal {
+		case "disabled":
+			if target.ID == actor.ID {
+				redirectUserEdit(ctx, userID, "You cannot disable yourself.", "")
+				return
+			}
+			if !target.Disabled {
+				if err := app.checkLastAdminDisable([]string{target.ID}); err != nil {
+					redirectUserEdit(ctx, userID, err.Error(), "")
+					return
+				}
+			}
+			target.Disabled = true
+		case "active":
+			target.Disabled = false
+		}
+	}
+
+	// admin tag toggle
+	adminTag, adminTagOK, err := app.store.GetTagByName(metastore.AdminTagName)
+	if err != nil {
+		redirectUserEdit(ctx, userID, "Could not verify admin tag.", "")
+		return
+	}
+	wantsAdmin := ctx.PostForm("is_admin") == "1"
+	if adminTagOK {
+		hasAdmin := containsString(target.TagIDs, adminTag.ID)
+		if wantsAdmin && !hasAdmin {
+			target.TagIDs = append(target.TagIDs, adminTag.ID)
+		} else if !wantsAdmin && hasAdmin {
+			if err := app.checkLastAdminDisable([]string{target.ID}); err != nil {
+				redirectUserEdit(ctx, userID, "Cannot remove admin from the last active administrator.", "")
+				return
+			}
+			target.TagIDs = removeString(target.TagIDs, adminTag.ID)
+		}
+	}
+
+	// per-user permission overrides
+	target.PermOverrides = &metastore.UserPermOverrides{
+		UploadAllowed:          boolPtr(ctx.PostForm("upload_allowed") == "1"),
+		ManageOwnBoxes:         boolPtr(ctx.PostForm("manage_own_boxes") == "1"),
+		ZipDownloadAllowed:     boolPtr(ctx.PostForm("zip_download_allowed") == "1"),
+		OneTimeDownloadAllowed: boolPtr(ctx.PostForm("one_time_download_allowed") == "1"),
+		RenewableAllowed:       boolPtr(ctx.PostForm("renewable_allowed") == "1"),
+		AllowPasswordProtected: boolPtr(ctx.PostForm("allow_password_protected") == "1"),
+		RenewOnAccess:          boolPtr(ctx.PostForm("renew_on_access") == "1"),
+		RenewOnDownload:        boolPtr(ctx.PostForm("renew_on_download") == "1"),
+		AllowOwnerBoxEditing:   boolPtr(ctx.PostForm("allow_owner_box_editing") == "1"),
+	}
+
+	// limits
+	if raw := ctx.PostForm("max_file_size_bytes"); raw != "" {
+		v, err := parseOptionalInt64(raw)
+		if err != nil {
+			redirectUserEdit(ctx, userID, "Max file size: "+err.Error(), "")
+			return
+		}
+		target.MaxFileSizeBytes = v
+	} else {
+		target.MaxFileSizeBytes = nil
+	}
+	if raw := ctx.PostForm("max_box_size_bytes"); raw != "" {
+		v, err := parseOptionalInt64(raw)
+		if err != nil {
+			redirectUserEdit(ctx, userID, "Max box size: "+err.Error(), "")
+			return
+		}
+		target.MaxBoxSizeBytes = v
+	} else {
+		target.MaxBoxSizeBytes = nil
+	}
+	if raw := ctx.PostForm("max_expiry_seconds"); raw != "" {
+		v, err := parseOptionalInt64(raw)
+		if err != nil {
+			redirectUserEdit(ctx, userID, "Max expiry: "+err.Error(), "")
+			return
+		}
+		target.MaxExpirySeconds = v
+	} else {
+		target.MaxExpirySeconds = nil
+	}
+
+	target.Username = username
+	target.Email = email
+	target.AdminNote = adminNote
+
+	if err := app.store.UpdateUser(target); err != nil {
+		redirectUserEdit(ctx, userID, "Could not save user: "+err.Error(), "")
+		return
+	}
+	redirectUserEdit(ctx, userID, "", "User saved.")
+}
+
+func (app *App) handleAccountUserDisable(ctx *gin.Context) {
+	app.handleAccountUserSetDisabled(ctx, true)
+}
+
+func (app *App) handleAccountUserEnable(ctx *gin.Context) {
+	app.handleAccountUserSetDisabled(ctx, false)
+}
+
+func (app *App) handleAccountUserSetDisabled(ctx *gin.Context, disabled bool) {
+	actor, ok := currentAccountUser(ctx)
+	if !ok {
+		ctx.Redirect(http.StatusSeeOther, "/account/login")
+		return
+	}
+
+	perms := currentAccountPermissions(ctx)
+	if !perms.AdminUsersManage {
+		ctx.String(http.StatusForbidden, "Permission denied")
+		return
+	}
+
+	userID := strings.TrimSpace(ctx.Param("id"))
+	if userID == actor.ID && disabled {
+		redirectUserEdit(ctx, userID, "You cannot disable yourself.", "")
+		return
+	}
+
+	if disabled {
+		if err := app.checkLastAdminDisable([]string{userID}); err != nil {
+			redirectUserEdit(ctx, userID, err.Error(), "")
+			return
+		}
+	}
+
+	target, found, err := app.store.GetUser(userID)
+	if err != nil || !found {
+		redirectUserEdit(ctx, userID, "User not found.", "")
+		return
+	}
+	target.Disabled = disabled
+	if err := app.store.UpdateUser(target); err != nil {
+		redirectUserEdit(ctx, userID, "Could not update user.", "")
+		return
+	}
+	action := "enabled"
+	if disabled {
+		action = "disabled"
+	}
+	redirectUserEdit(ctx, userID, "", "User "+action+".")
+}
+
+func (app *App) handleAccountUserPasswordReset(ctx *gin.Context) {
+	_, ok := currentAccountUser(ctx)
+	if !ok {
+		ctx.Redirect(http.StatusSeeOther, "/account/login")
+		return
+	}
+
+	perms := currentAccountPermissions(ctx)
+	if !perms.AdminUsersManage {
+		ctx.String(http.StatusForbidden, "Permission denied")
+		return
+	}
+
+	userID := strings.TrimSpace(ctx.Param("id"))
+	target, found, err := app.store.GetUser(userID)
+	if err != nil || !found {
+		redirectUserEdit(ctx, userID, "User not found.", "")
+		return
+	}
+
+	newPassword := randomPassword()
+	hash, err := metastore.HashPassword(newPassword)
+	if err != nil {
+		redirectUserEdit(ctx, userID, "Could not hash password.", "")
+		return
+	}
+	target.PasswordHash = hash
+	target.Disabled = false
+	if err := app.store.UpdateUser(target); err != nil {
+		redirectUserEdit(ctx, userID, "Could not reset password.", "")
+		return
+	}
+	redirectUserEdit(ctx, userID, "", "Password reset. Temporary password: "+newPassword)
+}
+
+func (app *App) handleAccountUserRevokeSessions(ctx *gin.Context) {
+	_, ok := currentAccountUser(ctx)
+	if !ok {
+		ctx.Redirect(http.StatusSeeOther, "/account/login")
+		return
+	}
+
+	perms := currentAccountPermissions(ctx)
+	if !perms.AdminUsersManage {
+		ctx.String(http.StatusForbidden, "Permission denied")
+		return
+	}
+
+	userID := strings.TrimSpace(ctx.Param("id"))
+	if err := app.store.RevokeUserSessions(userID); err != nil {
+		redirectUserEdit(ctx, userID, "Could not revoke sessions.", "")
+		return
+	}
+	redirectUserEdit(ctx, userID, "", "All sessions revoked.")
+}
+
+func (app *App) buildUserEditView(ctx *gin.Context, actor metastore.User, userID string, canManage bool, errMsg string, successMsg string) (UserEditView, error) {
+	target, found, err := app.store.GetUser(userID)
+	if err != nil || !found {
+		return UserEditView{}, err
+	}
+
+	tags, _ := app.store.ListTags()
+
+	adminTagID := ""
+	for _, t := range tags {
+		if t.Name == metastore.AdminTagName {
+			adminTagID = t.ID
+			break
+		}
+	}
+
+	isAdmin := containsString(target.TagIDs, adminTagID)
+	isPending := strings.HasPrefix(target.PasswordHash, "invite/")
+	status := "active"
+	if isPending {
+		status = "pending"
+	} else if target.Disabled {
+		status = "disabled"
+	}
+
+	effectivePerms, _ := app.permissionsForUser(target)
+
+	policyJSON := buildPolicyJSON(target.Username, status, effectivePerms, target.PermOverrides)
+
+	// tag names
+	tagNames := make([]string, 0, len(target.TagIDs))
+	for _, tagID := range target.TagIDs {
+		for _, t := range tags {
+			if t.ID == tagID {
+				tagNames = append(tagNames, t.Name)
+				break
+			}
+		}
+	}
+
+	// perm override checkboxes
+	checks := map[string]bool{
+		"upload_allowed":            effectivePerms.UploadAllowed,
+		"manage_own_boxes":          false,
+		"zip_download_allowed":      effectivePerms.ZipDownloadAllowed,
+		"one_time_download_allowed": effectivePerms.OneTimeDownloadAllowed,
+		"renewable_allowed":         effectivePerms.RenewableAllowed,
+		"allow_password_protected":  false,
+		"renew_on_access":           false,
+		"renew_on_download":         false,
+		"allow_owner_box_editing":   false,
+	}
+	if o := target.PermOverrides; o != nil {
+		if o.UploadAllowed != nil {
+			checks["upload_allowed"] = *o.UploadAllowed
+		}
+		if o.ManageOwnBoxes != nil {
+			checks["manage_own_boxes"] = *o.ManageOwnBoxes
+		}
+		if o.ZipDownloadAllowed != nil {
+			checks["zip_download_allowed"] = *o.ZipDownloadAllowed
+		}
+		if o.OneTimeDownloadAllowed != nil {
+			checks["one_time_download_allowed"] = *o.OneTimeDownloadAllowed
+		}
+		if o.RenewableAllowed != nil {
+			checks["renewable_allowed"] = *o.RenewableAllowed
+		}
+		if o.AllowPasswordProtected != nil {
+			checks["allow_password_protected"] = *o.AllowPasswordProtected
+		}
+		if o.RenewOnAccess != nil {
+			checks["renew_on_access"] = *o.RenewOnAccess
+		}
+		if o.RenewOnDownload != nil {
+			checks["renew_on_download"] = *o.RenewOnDownload
+		}
+		if o.AllowOwnerBoxEditing != nil {
+			checks["allow_owner_box_editing"] = *o.AllowOwnerBoxEditing
+		}
+	}
+
+	return UserEditView{
+		PageTitle:      "Edit User — " + target.Username,
+		WindowTitle:    "User Edit — " + target.Username,
+		WindowIcon:     "U",
+		PageScripts:    []string{"/static/js/account-user-edit.js"},
+		AccountNav:     app.accountNavView(ctx, "users"),
+		CSRFToken:      app.currentCSRFToken(ctx),
+		Target:         target,
+		Tags:           tags,
+		AdminTagID:     adminTagID,
+		IsAdmin:        isAdmin,
+		IsPending:      isPending,
+		Status:         status,
+		Perms:          effectivePerms,
+		PolicyJSON:     policyJSON,
+		CanManage:      canManage,
+		IsSelf:         actor.ID == target.ID,
+		Error:          errMsg,
+		Success:        successMsg,
+		TagNames:       strings.Join(tagNames, ", "),
+		CreatedAtStr:   formatAdminTime(target.CreatedAt),
+		UpdatedAtStr:   formatAdminTime(target.UpdatedAt),
+		MaxFileSizeStr: int64PtrStr(target.MaxFileSizeBytes),
+		MaxBoxSizeStr:  int64PtrStr(target.MaxBoxSizeBytes),
+		MaxExpiryStr:   int64PtrStr(target.MaxExpirySeconds),
+		Check:          checks,
+	}, nil
+}
+
+func buildPolicyJSON(username string, status string, perms metastore.EffectivePermissions, overrides *metastore.UserPermOverrides) string {
+	type permMap struct {
+		BoxesCreate      bool `json:"boxes.create"`
+		ManageOwn        bool `json:"boxes.manage_own"`
+		RefreshOwn       bool `json:"boxes.refresh_own"`
+		DownloadsZip     bool `json:"downloads.zip"`
+		DownloadsOneTime bool `json:"downloads.one_time"`
+		AdminAccess      bool `json:"admin.access"`
+		AdminUsers       bool `json:"admin.users.manage"`
+		AdminSettings    bool `json:"admin.settings.manage"`
+	}
+	type limitsMap struct {
+		MaxFileSizeBytes int64 `json:"max_file_size_bytes"`
+		MaxBoxSizeBytes  int64 `json:"max_box_size_bytes"`
+		MaxExpirySeconds int64 `json:"max_expiry_seconds"`
+	}
+	type overridesMap struct {
+		AllowPassword   bool `json:"allow_password_protected"`
+		RenewOnAccess   bool `json:"renew_on_access"`
+		RenewOnDownload bool `json:"renew_on_download"`
+		AllowOwnerEdit  bool `json:"allow_owner_box_editing"`
+	}
+	type preview struct {
+		User        string       `json:"user"`
+		Status      string       `json:"status"`
+		Permissions permMap      `json:"permissions"`
+		Limits      limitsMap    `json:"limits"`
+		Overrides   overridesMap `json:"overrides"`
+	}
+
+	manageOwn := false
+	allowPwd := false
+	renewAccess := false
+	renewDownload := false
+	allowOwnerEdit := false
+	if overrides != nil {
+		if overrides.ManageOwnBoxes != nil {
+			manageOwn = *overrides.ManageOwnBoxes
+		}
+		if overrides.AllowPasswordProtected != nil {
+			allowPwd = *overrides.AllowPasswordProtected
+		}
+		if overrides.RenewOnAccess != nil {
+			renewAccess = *overrides.RenewOnAccess
+		}
+		if overrides.RenewOnDownload != nil {
+			renewDownload = *overrides.RenewOnDownload
+		}
+		if overrides.AllowOwnerBoxEditing != nil {
+			allowOwnerEdit = *overrides.AllowOwnerBoxEditing
+		}
+	}
+
+	p := preview{
+		User:   username,
+		Status: status,
+		Permissions: permMap{
+			BoxesCreate:      perms.UploadAllowed,
+			ManageOwn:        manageOwn,
+			RefreshOwn:       perms.RenewableAllowed,
+			DownloadsZip:     perms.ZipDownloadAllowed,
+			DownloadsOneTime: perms.OneTimeDownloadAllowed,
+			AdminAccess:      perms.AdminAccess,
+			AdminUsers:       perms.AdminUsersManage,
+			AdminSettings:    perms.AdminSettingsManage,
+		},
+		Limits: limitsMap{
+			MaxFileSizeBytes: perms.MaxFileSizeBytes,
+			MaxBoxSizeBytes:  perms.MaxBoxSizeBytes,
+			MaxExpirySeconds: perms.MaxExpirySeconds,
+		},
+		Overrides: overridesMap{
+			AllowPassword:   allowPwd,
+			RenewOnAccess:   renewAccess,
+			RenewOnDownload: renewDownload,
+			AllowOwnerEdit:  allowOwnerEdit,
+		},
+	}
+	data, err := json.MarshalIndent(p, "", "  ")
+	if err != nil {
+		return "{}"
+	}
+	return string(data)
+}
+
+func (app *App) checkLastAdminDisable(ids []string) error {
+	adminTag, ok, err := app.store.GetTagByName(metastore.AdminTagName)
+	if err != nil || !ok {
+		return nil
+	}
+	adminCount, err := app.store.CountAdminUsers(adminTag.ID)
+	if err != nil {
+		return err
+	}
+	removing := 0
+	for _, id := range ids {
+		u, found, _ := app.store.GetUser(id)
+		if found && !u.Disabled && containsString(u.TagIDs, adminTag.ID) {
+			removing++
+		}
+	}
+	if adminCount-removing < 1 {
+		return fmt.Errorf("cannot remove the last active administrator")
+	}
+	return nil
+}
+
+func int64PtrStr(v *int64) string {
+	if v == nil {
+		return ""
+	}
+	return fmt.Sprintf("%d", *v)
+}
+
+func redirectUserEdit(ctx *gin.Context, userID string, errMsg string, successMsg string) {
+	base := "/account/users/" + userID
+	if errMsg != "" {
+		ctx.Redirect(http.StatusSeeOther, base+"?error="+errMsg)
+	} else if successMsg != "" {
+		ctx.Redirect(http.StatusSeeOther, base+"?success="+successMsg)
+	} else {
+		ctx.Redirect(http.StatusSeeOther, base)
+	}
+}
+
+func containsString(slice []string, s string) bool {
+	for _, v := range slice {
+		if v == s {
+			return true
+		}
+	}
+	return false
+}
+
+func removeString(slice []string, s string) []string {
+	out := make([]string, 0, len(slice))
+	for _, v := range slice {
+		if v != s {
+			out = append(out, v)
+		}
+	}
+	return out
+}
+
+func boolPtr(b bool) *bool {
+	return &b
+}

lib/server/admin_auth.go

@@ -0,0 +1,195 @@
+package server
+
+import (
+	"crypto/subtle"
+	"net/http"
+	"strings"
+	"time"
+
+	"github.com/gin-gonic/gin"
+
+	"warpbox/lib/metastore"
+)
+
+const adminSessionCookie = "warpbox_admin_session"
+
+func (app *App) handleAdminLogin(ctx *gin.Context) {
+	if app.isAdminSessionValid(ctx) {
+		ctx.Redirect(http.StatusSeeOther, "/admin")
+		return
+	}
+	app.renderAdminLogin(ctx, "")
+}
+
+func (app *App) handleAdminLoginPost(ctx *gin.Context) {
+	if !app.adminLoginEnabled {
+		app.renderAdminLogin(ctx, "Administrator login is disabled.")
+		return
+	}
+
+	username := strings.TrimSpace(ctx.PostForm("username"))
+	password := ctx.PostForm("password")
+	user, ok, err := app.store.GetUserByUsername(username)
+	if err != nil {
+		ctx.String(http.StatusInternalServerError, "Could not load user")
+		return
+	}
+	if !ok || user.Disabled || !metastore.VerifyPassword(user.PasswordHash, password) {
+		app.renderAdminLogin(ctx, "The username or password was not accepted.")
+		return
+	}
+
+	perms, err := app.permissionsForUser(user)
+	if err != nil {
+		ctx.String(http.StatusInternalServerError, "Could not load permissions")
+		return
+	}
+	if !perms.AdminAccess {
+		app.renderAdminLogin(ctx, "This user does not have administrator access.")
+		return
+	}
+
+	session, err := app.store.CreateSession(user.ID, time.Duration(app.config.SessionTTLSeconds)*time.Second)
+	if err != nil {
+		ctx.String(http.StatusInternalServerError, "Could not create session")
+		return
+	}
+	ctx.SetSameSite(http.SameSiteLaxMode)
+	ctx.SetCookie(adminSessionCookie, session.Token, int(app.config.SessionTTLSeconds), "/admin", "", app.config.AdminCookieSecure, true)
+	ctx.Redirect(http.StatusSeeOther, "/admin")
+}
+
+func (app *App) handleAdminLogout(ctx *gin.Context) {
+	if token, err := ctx.Cookie(adminSessionCookie); err == nil {
+		_ = app.store.DeleteSession(token)
+	}
+	ctx.SetSameSite(http.SameSiteLaxMode)
+	ctx.SetCookie(adminSessionCookie, "", -1, "/admin", "", app.config.AdminCookieSecure, true)
+	ctx.Redirect(http.StatusSeeOther, "/admin/login")
+}
+func (app *App) requireAdminSession(ctx *gin.Context) {
+	token, err := ctx.Cookie(adminSessionCookie)
+	if err != nil {
+		ctx.Redirect(http.StatusSeeOther, "/admin/login")
+		ctx.Abort()
+		return
+	}
+	session, ok, err := app.store.GetSession(token)
+	if err != nil || !ok {
+		ctx.Redirect(http.StatusSeeOther, "/admin/login")
+		ctx.Abort()
+		return
+	}
+	if !validAdminCSRF(ctx, session) {
+		ctx.String(http.StatusForbidden, "Permission denied")
+		ctx.Abort()
+		return
+	}
+	user, ok, err := app.store.GetUser(session.UserID)
+	if err != nil || !ok || user.Disabled {
+		ctx.Redirect(http.StatusSeeOther, "/admin/login")
+		ctx.Abort()
+		return
+	}
+	perms, err := app.permissionsForUser(user)
+	if err != nil || !perms.AdminAccess {
+		ctx.Redirect(http.StatusSeeOther, "/admin/login")
+		ctx.Abort()
+		return
+	}
+	ctx.Set("adminUser", user)
+	ctx.Set("adminPerms", perms)
+	ctx.Set("adminCSRFToken", session.CSRFToken)
+	ctx.Next()
+}
+
+func (app *App) isAdminSessionValid(ctx *gin.Context) bool {
+	token, err := ctx.Cookie(adminSessionCookie)
+	if err != nil {
+		return false
+	}
+	session, ok, err := app.store.GetSession(token)
+	if err != nil || !ok {
+		return false
+	}
+	user, ok, err := app.store.GetUser(session.UserID)
+	if err != nil || !ok || user.Disabled {
+		return false
+	}
+	perms, err := app.permissionsForUser(user)
+	return err == nil && perms.AdminAccess
+}
+
+func (app *App) permissionsForUser(user metastore.User) (metastore.EffectivePermissions, error) {
+	tags, err := app.store.TagsByID(user.TagIDs)
+	if err != nil {
+		return metastore.EffectivePermissions{}, err
+	}
+	return metastore.ResolveUserPermissions(app.config, user, tags), nil
+}
+
+func (app *App) requireAdminFlag(ctx *gin.Context, allowed func(metastore.EffectivePermissions) bool) bool {
+	value, ok := ctx.Get("adminPerms")
+	if !ok {
+		ctx.String(http.StatusForbidden, "Permission denied")
+		return false
+	}
+	perms, ok := value.(metastore.EffectivePermissions)
+	if !ok || !allowed(perms) {
+		ctx.String(http.StatusForbidden, "Permission denied")
+		return false
+	}
+	return true
+}
+
+func (app *App) currentAdminUsername(ctx *gin.Context) string {
+	if current, ok := ctx.Get("adminUser"); ok {
+		if user, ok := current.(metastore.User); ok {
+			return user.Username
+		}
+	}
+	return ""
+}
+
+func (app *App) currentCSRFToken(ctx *gin.Context) string {
+	if value, ok := ctx.Get("adminCSRFToken"); ok {
+		if token, ok := value.(string); ok {
+			return token
+		}
+	}
+	return ""
+}
+
+func (app *App) renderAdminLogin(ctx *gin.Context, errorMessage string) {
+	ctx.HTML(http.StatusOK, "admin_login.html", gin.H{
+		"AdminLoginEnabled": app.adminLoginEnabled,
+		"Error":             errorMessage,
+	})
+}
+
+func noStoreAdminHeaders(ctx *gin.Context) {
+	ctx.Header("Cache-Control", "no-store")
+	ctx.Header("Pragma", "no-cache")
+	ctx.Header("X-Content-Type-Options", "nosniff")
+	ctx.Next()
+}
+
+func validAdminCSRF(ctx *gin.Context, session metastore.Session) bool {
+	switch ctx.Request.Method {
+	case http.MethodGet, http.MethodHead, http.MethodOptions:
+		return true
+	}
+
+	token := ctx.PostForm("csrf_token")
+	if token == "" {
+		token = ctx.GetHeader("X-CSRF-Token")
+	}
+	return token != "" && subtleConstantTimeEqual(token, session.CSRFToken)
+}
+
+func subtleConstantTimeEqual(a string, b string) bool {
+	if len(a) != len(b) {
+		return false
+	}
+	return subtle.ConstantTimeCompare([]byte(a), []byte(b)) == 1
+}

lib/server/admin_boxes.go

@@ -0,0 +1,63 @@
+package server
+
+import (
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+
+	"warpbox/lib/boxstore"
+	"warpbox/lib/helpers"
+	"warpbox/lib/metastore"
+)
+
+type adminBoxRow struct {
+	ID                string
+	FileCount         int
+	TotalSizeLabel    string
+	CreatedAt         string
+	ExpiresAt         string
+	Expired           bool
+	OneTimeDownload   bool
+	PasswordProtected bool
+}
+
+func (app *App) handleAdminBoxes(ctx *gin.Context) {
+	if !app.requireAdminFlag(ctx, func(perms metastore.EffectivePermissions) bool { return perms.AdminBoxesView }) {
+		return
+	}
+
+	summaries, err := boxstore.ListBoxSummaries()
+	if err != nil {
+		ctx.String(http.StatusInternalServerError, "Could not list boxes")
+		return
+	}
+
+	rows := make([]adminBoxRow, 0, len(summaries))
+	totalSize := int64(0)
+	expiredCount := 0
+	for _, summary := range summaries {
+		totalSize += summary.TotalSize
+		if summary.Expired {
+			expiredCount++
+		}
+		rows = append(rows, adminBoxRow{
+			ID:                summary.ID,
+			FileCount:         summary.FileCount,
+			TotalSizeLabel:    summary.TotalSizeLabel,
+			CreatedAt:         formatAdminTime(summary.CreatedAt),
+			ExpiresAt:         formatAdminTime(summary.ExpiresAt),
+			Expired:           summary.Expired,
+			OneTimeDownload:   summary.OneTimeDownload,
+			PasswordProtected: summary.PasswordProtected,
+		})
+	}
+
+	ctx.HTML(http.StatusOK, "admin_boxes.html", gin.H{
+		"AdminSection": "boxes",
+		"CurrentUser":  app.currentAdminUsername(ctx),
+		"Boxes":        rows,
+		"TotalBoxes":   len(rows),
+		"TotalStorage": helpers.FormatBytes(totalSize),
+		"ExpiredBoxes": expiredCount,
+	})
+}

lib/server/admin_dashboard.go

@@ -0,0 +1,14 @@
+package server
+
+import (
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+)
+
+func (app *App) handleAdminDashboard(ctx *gin.Context) {
+	ctx.HTML(http.StatusOK, "admin.html", gin.H{
+		"CurrentUser": app.currentAdminUsername(ctx),
+		"CSRFToken":   app.currentCSRFToken(ctx),
+	})
+}

lib/server/admin_format.go

@@ -0,0 +1,73 @@
+package server
+
+import (
+	"errors"
+	"fmt"
+	"strconv"
+	"strings"
+	"time"
+)
+
+func parseOptionalInt64(raw string) (*int64, error) {
+	raw = strings.TrimSpace(raw)
+	if raw == "" {
+		return nil, nil
+	}
+	value, err := strconv.ParseInt(raw, 10, 64)
+	if err != nil {
+		return nil, errors.New("must be an integer")
+	}
+	if value < 0 {
+		return nil, errors.New("must be at least 0")
+	}
+	return &value, nil
+}
+
+func parseCSVInt64(raw string) ([]int64, error) {
+	raw = strings.TrimSpace(raw)
+	if raw == "" {
+		return nil, nil
+	}
+	parts := strings.Split(raw, ",")
+	values := make([]int64, 0, len(parts))
+	for _, part := range parts {
+		part = strings.TrimSpace(part)
+		if part == "" {
+			continue
+		}
+		value, err := strconv.ParseInt(part, 10, 64)
+		if err != nil {
+			return nil, fmt.Errorf("allowed expiry durations must be comma-separated seconds")
+		}
+		if value < 0 {
+			return nil, fmt.Errorf("allowed expiry durations must be at least 0")
+		}
+		values = append(values, value)
+	}
+	return values, nil
+}
+
+func optionalInt64Label(value *int64) string {
+	if value == nil {
+		return "-"
+	}
+	return strconv.FormatInt(*value, 10)
+}
+
+func joinInt64s(values []int64) string {
+	if len(values) == 0 {
+		return "-"
+	}
+	parts := make([]string, 0, len(values))
+	for _, value := range values {
+		parts = append(parts, strconv.FormatInt(value, 10))
+	}
+	return strings.Join(parts, ", ")
+}
+
+func formatAdminTime(value time.Time) string {
+	if value.IsZero() {
+		return "-"
+	}
+	return value.Local().Format("2006-01-02 15:04:05")
+}

lib/server/admin_routes.go

@@ -0,0 +1,37 @@
+package server
+
+import (
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+)
+
+func (app *App) registerAdminRoutes(router *gin.Engine) {
+	admin := router.Group("/admin")
+	admin.Use(noStoreAdminHeaders)
+	admin.GET("/login", func(ctx *gin.Context) {
+		ctx.Redirect(http.StatusSeeOther, "/account/login")
+	})
+	admin.POST("/login", app.handleAdminLoginPost)
+	admin.GET("", func(ctx *gin.Context) {
+		ctx.Redirect(http.StatusSeeOther, "/account")
+	})
+	admin.GET("/", func(ctx *gin.Context) {
+		ctx.Redirect(http.StatusSeeOther, "/account")
+	})
+
+	protected := admin.Group("")
+	protected.Use(app.requireAdminSession)
+	protected.POST("/logout", app.handleAdminLogout)
+	protected.GET("/boxes", app.handleAdminBoxes)
+	protected.GET("/users", func(ctx *gin.Context) {
+		ctx.Redirect(http.StatusSeeOther, "/account/users")
+	})
+	protected.POST("/users", func(ctx *gin.Context) {
+		ctx.Redirect(http.StatusSeeOther, "/account/users")
+	})
+	protected.GET("/tags", app.handleAdminTags)
+	protected.POST("/tags", app.handleAdminTagsPost)
+	protected.GET("/settings", app.handleAdminSettings)
+	protected.POST("/settings", app.handleAdminSettingsPost)
+}

lib/server/admin_settings.go

@@ -0,0 +1,58 @@
+package server
+
+import (
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+
+	"warpbox/lib/config"
+	"warpbox/lib/metastore"
+)
+
+func (app *App) handleAdminSettings(ctx *gin.Context) {
+	if !app.requireAdminFlag(ctx, func(perms metastore.EffectivePermissions) bool { return perms.AdminSettingsManage }) {
+		return
+	}
+	app.renderAdminSettings(ctx, "")
+}
+
+func (app *App) handleAdminSettingsPost(ctx *gin.Context) {
+	if !app.requireAdminFlag(ctx, func(perms metastore.EffectivePermissions) bool { return perms.AdminSettingsManage }) {
+		return
+	}
+	if !app.config.AllowAdminSettingsOverride {
+		app.renderAdminSettings(ctx, "Admin settings overrides are disabled by environment configuration.")
+		return
+	}
+
+	for _, def := range config.EditableDefinitions() {
+		value := ctx.PostForm(def.Key)
+		if def.Type == config.SettingTypeBool {
+			value = "false"
+			if ctx.PostForm(def.Key) == "true" {
+				value = "true"
+			}
+		}
+		if err := app.config.ApplyOverride(def.Key, value); err != nil {
+			app.renderAdminSettings(ctx, err.Error())
+			return
+		}
+		if err := app.store.SetSetting(def.Key, value); err != nil {
+			app.renderAdminSettings(ctx, err.Error())
+			return
+		}
+	}
+	applyBoxstoreRuntimeConfig(app.config)
+	ctx.Redirect(http.StatusSeeOther, "/admin/settings")
+}
+
+func (app *App) renderAdminSettings(ctx *gin.Context, errorMessage string) {
+	ctx.HTML(http.StatusOK, "admin_settings.html", gin.H{
+		"AdminSection":     "settings",
+		"CurrentUser":      app.currentAdminUsername(ctx),
+		"CSRFToken":        app.currentCSRFToken(ctx),
+		"Rows":             app.config.SettingRows(),
+		"OverridesAllowed": app.config.AllowAdminSettingsOverride,
+		"Error":            errorMessage,
+	})
+}

lib/server/admin_tags.go

@@ -0,0 +1,122 @@
+package server
+
+import (
+	"fmt"
+	"net/http"
+	"sort"
+	"strings"
+
+	"github.com/gin-gonic/gin"
+
+	"warpbox/lib/metastore"
+)
+
+type adminTagRow struct {
+	ID                     string
+	Name                   string
+	Description            string
+	Protected              bool
+	AdminAccess            bool
+	UploadAllowed          bool
+	ZipDownloadAllowed     bool
+	OneTimeDownloadAllowed bool
+	RenewableAllowed       bool
+	MaxFileSizeBytes       string
+	MaxBoxSizeBytes        string
+	AllowedExpirySeconds   string
+}
+
+func (app *App) handleAdminTags(ctx *gin.Context) {
+	if !app.requireAdminFlag(ctx, func(perms metastore.EffectivePermissions) bool { return perms.AdminUsersManage }) {
+		return
+	}
+	app.renderAdminTags(ctx, "")
+}
+
+func (app *App) handleAdminTagsPost(ctx *gin.Context) {
+	if !app.requireAdminFlag(ctx, func(perms metastore.EffectivePermissions) bool { return perms.AdminUsersManage }) {
+		return
+	}
+
+	perms, err := parseTagPermissions(ctx)
+	if err != nil {
+		app.renderAdminTags(ctx, err.Error())
+		return
+	}
+	tag := metastore.Tag{
+		Name:        ctx.PostForm("name"),
+		Description: ctx.PostForm("description"),
+		Permissions: perms,
+	}
+	if err := app.store.CreateTag(&tag); err != nil {
+		app.renderAdminTags(ctx, err.Error())
+		return
+	}
+	ctx.Redirect(http.StatusSeeOther, "/admin/tags")
+}
+
+func (app *App) renderAdminTags(ctx *gin.Context, errorMessage string) {
+	tags, err := app.store.ListTags()
+	if err != nil {
+		ctx.String(http.StatusInternalServerError, "Could not list tags")
+		return
+	}
+	sort.Slice(tags, func(i int, j int) bool {
+		return strings.ToLower(tags[i].Name) < strings.ToLower(tags[j].Name)
+	})
+	rows := make([]adminTagRow, 0, len(tags))
+	for _, tag := range tags {
+		rows = append(rows, adminTagRow{
+			ID:                     tag.ID,
+			Name:                   tag.Name,
+			Description:            tag.Description,
+			Protected:              tag.Protected,
+			AdminAccess:            tag.Permissions.AdminAccess,
+			UploadAllowed:          tag.Permissions.UploadAllowed,
+			ZipDownloadAllowed:     tag.Permissions.ZipDownloadAllowed,
+			OneTimeDownloadAllowed: tag.Permissions.OneTimeDownloadAllowed,
+			RenewableAllowed:       tag.Permissions.RenewableAllowed,
+			MaxFileSizeBytes:       optionalInt64Label(tag.Permissions.MaxFileSizeBytes),
+			MaxBoxSizeBytes:        optionalInt64Label(tag.Permissions.MaxBoxSizeBytes),
+			AllowedExpirySeconds:   joinInt64s(tag.Permissions.AllowedExpirySeconds),
+		})
+	}
+	ctx.HTML(http.StatusOK, "admin_tags.html", gin.H{
+		"AdminSection": "tags",
+		"CurrentUser":  app.currentAdminUsername(ctx),
+		"CSRFToken":    app.currentCSRFToken(ctx),
+		"Tags":         rows,
+		"Error":        errorMessage,
+	})
+}
+func parseTagPermissions(ctx *gin.Context) (metastore.TagPermissions, error) {
+	maxFileSize, err := parseOptionalInt64(ctx.PostForm("max_file_size_bytes"))
+	if err != nil {
+		return metastore.TagPermissions{}, fmt.Errorf("max file size bytes %w", err)
+	}
+	maxBoxSize, err := parseOptionalInt64(ctx.PostForm("max_box_size_bytes"))
+	if err != nil {
+		return metastore.TagPermissions{}, fmt.Errorf("max box size bytes %w", err)
+	}
+	expirySeconds, err := parseCSVInt64(ctx.PostForm("allowed_expiry_seconds"))
+	if err != nil {
+		return metastore.TagPermissions{}, err
+	}
+	return metastore.TagPermissions{
+		UploadAllowed:          checkbox(ctx, "upload_allowed"),
+		AllowedExpirySeconds:   expirySeconds,
+		MaxFileSizeBytes:       maxFileSize,
+		MaxBoxSizeBytes:        maxBoxSize,
+		OneTimeDownloadAllowed: checkbox(ctx, "one_time_download_allowed"),
+		ZipDownloadAllowed:     checkbox(ctx, "zip_download_allowed"),
+		RenewableAllowed:       checkbox(ctx, "renewable_allowed"),
+		AdminAccess:            checkbox(ctx, "admin_access"),
+		AdminUsersManage:       checkbox(ctx, "admin_users_manage"),
+		AdminSettingsManage:    checkbox(ctx, "admin_settings_manage"),
+		AdminBoxesView:         checkbox(ctx, "admin_boxes_view"),
+	}, nil
+}
+
+func checkbox(ctx *gin.Context, name string) bool {
+	return ctx.PostForm(name) == "true"
+}

lib/server/admin_users.go

@@ -0,0 +1,393 @@
+package server
+
+import (
+	"crypto/rand"
+	"fmt"
+	"math/big"
+	"net/http"
+	"strconv"
+	"strings"
+
+	"github.com/gin-gonic/gin"
+
+	"warpbox/lib/metastore"
+)
+
+const defaultUserPageSize = 12
+
+type UsersIndexView struct {
+	PageTitle   string
+	WindowTitle string
+	WindowIcon  string
+	PageScripts []string
+	AccountNav  AccountNavView
+	CSRFToken   string
+	Filters     UserFiltersView
+	Rows        []metastore.UserRow
+	Stats       metastore.UserPageStats
+	Page        int
+	PageSize    int
+	Total       int
+	TotalPages  int
+	HasPrev     bool
+	HasNext     bool
+	CanManage   bool
+	Tags        []metastore.Tag
+	Error       string
+	Success     string
+}
+
+type UserFiltersView struct {
+	Query    string
+	Status   string
+	Role     string
+	Sort     string
+	PageSize int
+}
+
+func (app *App) handleAccountUsers(ctx *gin.Context) {
+	actor, ok := currentAccountUser(ctx)
+	if !ok {
+		ctx.Redirect(http.StatusSeeOther, "/account/login")
+		return
+	}
+
+	perms := currentAccountPermissions(ctx)
+	if !perms.AdminUsersView && !perms.AdminUsersManage {
+		ctx.String(http.StatusForbidden, "Permission denied")
+		return
+	}
+
+	filters := userFiltersFromRequest(ctx)
+	pageReq := userPageFromRequest(ctx)
+
+	userPage, err := app.store.ListUsersPaginated(filters, pageReq)
+	if err != nil {
+		ctx.String(http.StatusInternalServerError, "Could not list users")
+		return
+	}
+
+	currentID := actor.ID
+	for i := range userPage.Rows {
+		if userPage.Rows[i].ID == currentID {
+			userPage.Rows[i].IsCurrent = true
+		}
+	}
+
+	tags, _ := app.store.ListTags()
+
+	view := UsersIndexView{
+		PageTitle:   "WarpBox Users",
+		WindowTitle: "WarpBox Users",
+		WindowIcon:  "U",
+		PageScripts: []string{"/static/js/account-users.js"},
+		AccountNav:  app.accountNavView(ctx, "users"),
+		CSRFToken:   app.currentCSRFToken(ctx),
+		Filters: UserFiltersView{
+			Query:    filters.Query,
+			Status:   filters.Status,
+			Role:     filters.Role,
+			Sort:     filters.Sort,
+			PageSize: pageReq.PageSize,
+		},
+		Rows:       userPage.Rows,
+		Stats:      userPage.Stats,
+		Page:       userPage.Page,
+		PageSize:   userPage.PageSize,
+		Total:      userPage.Total,
+		TotalPages: userPage.TotalPages,
+		HasPrev:    userPage.HasPrev,
+		HasNext:    userPage.HasNext,
+		CanManage:  perms.AdminUsersManage,
+		Tags:       tags,
+		Error:      ctx.Query("error"),
+		Success:    ctx.Query("success"),
+	}
+
+	ctx.HTML(http.StatusOK, "account_users.html", view)
+}
+
+func (app *App) handleAccountUsersPost(ctx *gin.Context) {
+	actor, ok := currentAccountUser(ctx)
+	if !ok {
+		ctx.Redirect(http.StatusSeeOther, "/account/login")
+		return
+	}
+
+	perms := currentAccountPermissions(ctx)
+	if !perms.AdminUsersManage {
+		ctx.String(http.StatusForbidden, "Permission denied")
+		return
+	}
+
+	action := ctx.PostForm("action")
+	switch action {
+	case "create":
+		app.handleAccountUsersCreate(ctx, actor)
+	default:
+		redirectAccountUsers(ctx, "Unknown action", "")
+	}
+}
+
+func (app *App) handleAccountUsersCreate(ctx *gin.Context, _ metastore.User) {
+	username := strings.TrimSpace(ctx.PostForm("username"))
+	email := strings.TrimSpace(ctx.PostForm("email"))
+	mode := strings.TrimSpace(ctx.PostForm("mode"))
+	role := strings.TrimSpace(ctx.PostForm("role"))
+
+	if username == "" {
+		redirectAccountUsers(ctx, "Username is required.", "")
+		return
+	}
+	if email == "" {
+		redirectAccountUsers(ctx, "Email is required.", "")
+		return
+	}
+
+	var tagIDs []string
+	if role != "" && role != "all" {
+		tag, ok, err := app.store.GetTagByName(role)
+		if err != nil {
+			redirectAccountUsers(ctx, "Could not look up role.", "")
+			return
+		}
+		if ok {
+			tagIDs = append(tagIDs, tag.ID)
+		}
+	}
+
+	switch mode {
+	case "invite":
+		user, err := app.store.CreateUserWithoutPassword(username, email, tagIDs)
+		if err != nil {
+			redirectAccountUsers(ctx, err.Error(), "")
+			return
+		}
+		inviteLink := fmt.Sprintf("/account/setup?token=%s", strings.TrimPrefix(user.PasswordHash, "invite/"))
+		msg := fmt.Sprintf("Invite user created. Setup link: %s (Email delivery not yet implemented.)", inviteLink)
+		redirectAccountUsers(ctx, "", msg)
+
+	case "create":
+		password := strings.TrimSpace(ctx.PostForm("password"))
+		autoGen := false
+		if password == "" {
+			password = randomPassword()
+			autoGen = true
+		}
+		user, err := app.store.CreateUserWithPassword(username, email, password, tagIDs)
+		if err != nil {
+			redirectAccountUsers(ctx, err.Error(), "")
+			return
+		}
+		msg := fmt.Sprintf("User %s created.", user.Username)
+		if autoGen {
+			msg = fmt.Sprintf("User %s created. Temporary password: %s", user.Username, password)
+		}
+		redirectAccountUsers(ctx, "", msg)
+
+	default:
+		redirectAccountUsers(ctx, "Select create or invite mode.", "")
+	}
+}
+
+func (app *App) handleAccountUsersBulkDisable(ctx *gin.Context) {
+	app.handleAccountUsersBulkSetDisabled(ctx, true)
+}
+
+func (app *App) handleAccountUsersBulkEnable(ctx *gin.Context) {
+	app.handleAccountUsersBulkSetDisabled(ctx, false)
+}
+
+func (app *App) handleAccountUsersBulkSetDisabled(ctx *gin.Context, disabled bool) {
+	actor, ok := currentAccountUser(ctx)
+	if !ok {
+		ctx.Redirect(http.StatusSeeOther, "/account/login")
+		return
+	}
+
+	perms := currentAccountPermissions(ctx)
+	if !perms.AdminUsersManage {
+		ctx.String(http.StatusForbidden, "Permission denied")
+		return
+	}
+
+	ids := parseSelectedIDs(ctx)
+	if len(ids) == 0 {
+		redirectAccountUsers(ctx, "No users selected.", "")
+		return
+	}
+
+	for _, id := range ids {
+		if id == actor.ID {
+			redirectAccountUsers(ctx, "You cannot disable yourself.", "")
+			return
+		}
+	}
+
+	if disabled {
+		adminTag, ok, err := app.store.GetTagByName(metastore.AdminTagName)
+		if err != nil || !ok {
+			redirectAccountUsers(ctx, "Could not verify admin protection.", "")
+			return
+		}
+		adminCount, err := app.store.CountAdminUsers(adminTag.ID)
+		if err != nil {
+			redirectAccountUsers(ctx, "Could not verify admin protection.", "")
+			return
+		}
+		disableAdminCount := 0
+		for _, id := range ids {
+			user, ok, err := app.store.GetUser(id)
+			if err != nil || !ok {
+				continue
+			}
+			if !user.Disabled {
+				for _, tagID := range user.TagIDs {
+					if tagID == adminTag.ID {
+						disableAdminCount++
+						break
+					}
+				}
+			}
+		}
+		if adminCount-disableAdminCount < 1 {
+			redirectAccountUsers(ctx, "Cannot disable the last active administrator.", "")
+			return
+		}
+	}
+
+	if err := app.store.BulkSetUsersDisabled(ids, disabled); err != nil {
+		redirectAccountUsers(ctx, "Could not update users.", "")
+		return
+	}
+
+	action := "disabled"
+	if !disabled {
+		action = "enabled"
+	}
+	redirectAccountUsers(ctx, "", fmt.Sprintf("%d user(s) %s.", len(ids), action))
+}
+
+func (app *App) handleAccountUsersBulkRevokeSessions(ctx *gin.Context) {
+	_, ok := currentAccountUser(ctx)
+	if !ok {
+		ctx.Redirect(http.StatusSeeOther, "/account/login")
+		return
+	}
+
+	perms := currentAccountPermissions(ctx)
+	if !perms.AdminUsersManage {
+		ctx.String(http.StatusForbidden, "Permission denied")
+		return
+	}
+
+	ids := parseSelectedIDs(ctx)
+	if len(ids) == 0 {
+		redirectAccountUsers(ctx, "No users selected.", "")
+		return
+	}
+
+	if err := app.store.BulkRevokeUserSessions(ids); err != nil {
+		redirectAccountUsers(ctx, "Could not revoke sessions.", "")
+		return
+	}
+
+	redirectAccountUsers(ctx, "", fmt.Sprintf("Sessions revoked for %d user(s).", len(ids)))
+}
+
+func (app *App) handleAccountUsersResendInvite(ctx *gin.Context) {
+	_, ok := currentAccountUser(ctx)
+	if !ok {
+		ctx.Redirect(http.StatusSeeOther, "/account/login")
+		return
+	}
+
+	perms := currentAccountPermissions(ctx)
+	if !perms.AdminUsersManage {
+		ctx.String(http.StatusForbidden, "Permission denied")
+		return
+	}
+
+	userID := strings.TrimSpace(ctx.Param("id"))
+	if userID == "" {
+		redirectAccountUsers(ctx, "User ID is required.", "")
+		return
+	}
+
+	user, ok, err := app.store.GetUser(userID)
+	if err != nil || !ok {
+		redirectAccountUsers(ctx, "User not found.", "")
+		return
+	}
+
+	if !strings.HasPrefix(user.PasswordHash, "invite/") {
+		redirectAccountUsers(ctx, "This user is not a pending invite.", "")
+		return
+	}
+
+	inviteLink := fmt.Sprintf("/account/setup?token=%s", strings.TrimPrefix(user.PasswordHash, "invite/"))
+	redirectAccountUsers(ctx, "", fmt.Sprintf("Invite link: %s (Email delivery not yet implemented.)", inviteLink))
+}
+
+func userFiltersFromRequest(ctx *gin.Context) metastore.UserFilters {
+	return metastore.UserFilters{
+		Query:  strings.TrimSpace(ctx.Query("q")),
+		Status: strings.TrimSpace(ctx.Query("status")),
+		Role:   strings.TrimSpace(ctx.Query("role")),
+		Sort:   strings.TrimSpace(ctx.Query("sort")),
+	}
+}
+
+func userPageFromRequest(ctx *gin.Context) metastore.UserPageRequest {
+	page := 1
+	if p, err := strconv.Atoi(ctx.Query("page")); err == nil && p > 0 {
+		page = p
+	}
+	pageSize := defaultUserPageSize
+	if ps, err := strconv.Atoi(ctx.Query("page_size")); err == nil && ps >= 1 && ps <= 100 {
+		pageSize = ps
+	}
+	return metastore.UserPageRequest{
+		Page:     page,
+		PageSize: pageSize,
+	}
+}
+
+func parseSelectedIDs(ctx *gin.Context) []string {
+	raw := ctx.PostForm("selected_ids")
+	if raw == "" {
+		return nil
+	}
+	parts := strings.Split(raw, ",")
+	ids := make([]string, 0, len(parts))
+	for _, part := range parts {
+		id := strings.TrimSpace(part)
+		if id != "" {
+			ids = append(ids, id)
+		}
+	}
+	return ids
+}
+
+func redirectAccountUsers(ctx *gin.Context, errorMsg string, successMsg string) {
+	redirectURL := "/account/users"
+	if errorMsg != "" {
+		redirectURL = "/account/users?error=" + errorMsg
+	} else if successMsg != "" {
+		redirectURL = "/account/users?success=" + successMsg
+	}
+	ctx.Redirect(http.StatusSeeOther, redirectURL)
+}
+
+func randomPassword() string {
+	const charset = "abcdefghjkmnpqrstuvwxyzABCDEFGHJKMNPQRSTUVWXYZ23456789"
+	result := make([]byte, 16)
+	for i := range result {
+		n, err := rand.Int(rand.Reader, big.NewInt(int64(len(charset))))
+		if err != nil {
+			return "changeme123"
+		}
+		result[i] = charset[n.Int64()]
+	}
+	return string(result)
+}

lib/server/box_auth.go

@@ -0,0 +1,135 @@
+package server
+
+import (
+	"net/http"
+	"time"
+
+	"github.com/gin-gonic/gin"
+
+	"warpbox/lib/boxstore"
+	"warpbox/lib/models"
+)
+
+const boxAuthCookiePrefix = "warpbox_box_"
+
+func handleBoxLogin(ctx *gin.Context) {
+	boxID := ctx.Param("id")
+	if !boxstore.ValidBoxID(boxID) {
+		ctx.String(http.StatusBadRequest, "Invalid box id")
+		return
+	}
+
+	manifest, err := boxstore.ReadManifest(boxID)
+	if err != nil {
+		ctx.String(http.StatusNotFound, "Box not found")
+		return
+	}
+
+	if boxstore.IsExpired(manifest) {
+		boxstore.DeleteBox(boxID)
+		ctx.String(http.StatusGone, "Box expired")
+		return
+	}
+
+	if !boxstore.IsPasswordProtected(manifest) || isBoxAuthorized(ctx, boxID, manifest) {
+		ctx.Redirect(http.StatusSeeOther, "/box/"+boxID)
+		return
+	}
+
+	renderBoxLogin(ctx, boxID, "")
+}
+
+func handleBoxLoginPost(ctx *gin.Context) {
+	boxID := ctx.Param("id")
+	if !boxstore.ValidBoxID(boxID) {
+		ctx.String(http.StatusBadRequest, "Invalid box id")
+		return
+	}
+
+	manifest, err := boxstore.ReadManifest(boxID)
+	if err != nil {
+		ctx.String(http.StatusNotFound, "Box not found")
+		return
+	}
+
+	if boxstore.IsExpired(manifest) {
+		boxstore.DeleteBox(boxID)
+		ctx.String(http.StatusGone, "Box expired")
+		return
+	}
+
+	if !boxstore.VerifyPassword(manifest, ctx.PostForm("password")) {
+		renderBoxLogin(ctx, boxID, "The password was not accepted.")
+		return
+	}
+
+	maxAge := 24 * 60 * 60
+	if !manifest.ExpiresAt.IsZero() {
+		seconds := int(time.Until(manifest.ExpiresAt).Seconds())
+		if seconds > 0 {
+			maxAge = seconds
+		}
+	}
+
+	ctx.SetCookie(boxAuthCookieName(boxID), manifest.AuthToken, maxAge, "/box/"+boxID, "", false, true)
+	ctx.Redirect(http.StatusSeeOther, "/box/"+boxID)
+}
+func (app *App) authorizeBoxRequest(ctx *gin.Context, boxID string, wantsHTML bool) (models.BoxManifest, bool, bool) {
+	manifest, err := boxstore.ReadManifest(boxID)
+	if err != nil {
+		return models.BoxManifest{}, false, true
+	}
+
+	if boxstore.IsExpired(manifest) {
+		boxstore.DeleteBox(boxID)
+		if wantsHTML {
+			ctx.String(http.StatusGone, "Box expired")
+		} else {
+			ctx.JSON(http.StatusGone, gin.H{"error": "Box expired"})
+		}
+		return manifest, true, false
+	}
+
+	if manifest.OneTimeDownload && manifest.Consumed {
+		if wantsHTML {
+			ctx.String(http.StatusGone, "Box already consumed")
+		} else {
+			ctx.JSON(http.StatusGone, gin.H{"error": "Box already consumed"})
+		}
+		return manifest, true, false
+	}
+
+	if boxstore.IsPasswordProtected(manifest) && !isBoxAuthorized(ctx, boxID, manifest) {
+		if wantsHTML {
+			ctx.Redirect(http.StatusSeeOther, "/box/"+boxID+"/login")
+		} else {
+			ctx.JSON(http.StatusUnauthorized, gin.H{"error": "Password required"})
+		}
+		return manifest, true, false
+	}
+
+	if app.config.RenewOnAccessEnabled {
+		if renewed, err := boxstore.RenewManifest(boxID, manifest.RetentionSecs); err == nil {
+			manifest = renewed
+		}
+	}
+
+	return manifest, true, true
+}
+
+func isBoxAuthorized(ctx *gin.Context, boxID string, manifest models.BoxManifest) bool {
+	token, err := ctx.Cookie(boxAuthCookieName(boxID))
+	return err == nil && boxstore.VerifyAuthToken(manifest, token)
+}
+
+func boxAuthCookieName(boxID string) string {
+	return boxAuthCookiePrefix + boxID
+}
+
+func renderBoxLogin(ctx *gin.Context, boxID string, errorMessage string) {
+	ctx.HTML(http.StatusOK, "box_login.html", gin.H{
+		"BoxID":        boxID,
+		"BoxUser":      "WarpBox\\" + boxID,
+		"ErrorMessage": errorMessage,
+	})
+}

lib/server/downloads.go

@@ -0,0 +1,281 @@
+package server
+
+import (
+	"archive/zip"
+	"fmt"
+	"io"
+	"net/http"
+	"os"
+	"sync"
+
+	"github.com/gin-gonic/gin"
+
+	"warpbox/lib/boxstore"
+	"warpbox/lib/helpers"
+	"warpbox/lib/models"
+)
+
+var oneTimeDownloadLocks sync.Map
+
+func (app *App) handleDownloadBox(ctx *gin.Context) {
+	boxID := ctx.Param("id")
+	if !boxstore.ValidBoxID(boxID) {
+		ctx.String(http.StatusBadRequest, "Invalid box id")
+		return
+	}
+
+	if !app.config.ZipDownloadsEnabled {
+		ctx.String(http.StatusForbidden, "Zip downloads are disabled")
+		return
+	}
+
+	manifest, hasManifest, ok := app.authorizeBoxRequest(ctx, boxID, true)
+	if !ok {
+		return
+	}
+	if hasManifest && manifest.OneTimeDownload {
+		app.handleOneTimeDownloadBox(ctx, boxID)
+		return
+	}
+
+	if hasManifest && manifest.DisableZip {
+		ctx.String(http.StatusForbidden, "Zip download disabled for this box")
+		return
+	}
+
+	files, err := boxstore.ListFiles(boxID)
+	if err != nil {
+		ctx.String(http.StatusNotFound, "Box not found")
+		return
+	}
+	if !app.writeBoxZip(ctx, boxID, files) {
+		return
+	}
+	if hasManifest && app.config.RenewOnDownloadEnabled {
+		boxstore.RenewManifest(boxID, manifest.RetentionSecs)
+	}
+}
+
+func (app *App) handleOneTimeDownloadBox(ctx *gin.Context, boxID string) {
+	lock := oneTimeDownloadLock(boxID)
+	lock.Lock()
+	defer lock.Unlock()
+	defer oneTimeDownloadLocks.Delete(boxID)
+
+	manifest, hasManifest, ok := app.authorizeBoxRequest(ctx, boxID, true)
+	if !ok {
+		return
+	}
+	if !hasManifest || !manifest.OneTimeDownload || manifest.Consumed {
+		ctx.String(http.StatusGone, "Box already consumed")
+		return
+	}
+
+	files, err := boxstore.ListFiles(boxID)
+	if err != nil {
+		ctx.String(http.StatusNotFound, "Box not found")
+		return
+	}
+	if !allFilesComplete(files) {
+		ctx.String(http.StatusConflict, "Box is not ready yet")
+		return
+	}
+
+	if app.config.OneTimeDownloadRetryOnFailure {
+		app.handleRetryableOneTimeZip(ctx, boxID, manifest, files)
+		return
+	}
+
+	manifest.Consumed = true
+	if err := boxstore.WriteManifest(boxID, manifest); err != nil {
+		ctx.String(http.StatusInternalServerError, "Could not mark box as consumed")
+		return
+	}
+	if !app.writeBoxZip(ctx, boxID, files) {
+		boxstore.DeleteBox(boxID)
+		return
+	}
+	boxstore.DeleteBox(boxID)
+}
+
+func (app *App) writeBoxZip(ctx *gin.Context, boxID string, files []models.BoxFile) bool {
+	writeBoxZipHeaders(ctx, boxID)
+	if err := writeBoxZipTo(ctx.Writer, boxID, files); err != nil {
+		ctx.Status(http.StatusInternalServerError)
+		return false
+	}
+	return true
+}
+
+func (app *App) handleRetryableOneTimeZip(ctx *gin.Context, boxID string, manifest models.BoxManifest, files []models.BoxFile) {
+	tempZip, err := os.CreateTemp("", "warpbox-"+boxID+"-*.zip")
+	if err != nil {
+		ctx.String(http.StatusInternalServerError, "Could not prepare ZIP download")
+		return
+	}
+	tempPath := tempZip.Name()
+	defer os.Remove(tempPath)
+
+	if err := writeBoxZipTo(tempZip, boxID, files); err != nil {
+		tempZip.Close()
+		ctx.String(http.StatusInternalServerError, "Could not build ZIP download")
+		return
+	}
+	if _, err := tempZip.Seek(0, 0); err != nil {
+		tempZip.Close()
+		ctx.String(http.StatusInternalServerError, "Could not read ZIP download")
+		return
+	}
+
+	writeBoxZipHeaders(ctx, boxID)
+	if _, err := io.Copy(ctx.Writer, tempZip); err != nil {
+		tempZip.Close()
+		return
+	}
+	if err := tempZip.Close(); err != nil {
+		return
+	}
+
+	manifest.Consumed = true
+	if err := boxstore.WriteManifest(boxID, manifest); err != nil {
+		return
+	}
+	boxstore.DeleteBox(boxID)
+}
+
+func writeBoxZipHeaders(ctx *gin.Context, boxID string) {
+	ctx.Header("Content-Type", "application/zip")
+	ctx.Header("Content-Disposition", fmt.Sprintf(`attachment; filename="warpbox-%s.zip"`, boxID))
+}
+
+func writeBoxZipTo(destination io.Writer, boxID string, files []models.BoxFile) error {
+	zipWriter := zip.NewWriter(destination)
+
+	for _, file := range files {
+		if !file.IsComplete {
+			continue
+		}
+		if err := boxstore.AddFileToZip(zipWriter, boxID, file.Name); err != nil {
+			return err
+		}
+	}
+
+	if err := zipWriter.Close(); err != nil {
+		return err
+	}
+	return nil
+}
+
+func oneTimeDownloadLock(boxID string) *sync.Mutex {
+	lock, _ := oneTimeDownloadLocks.LoadOrStore(boxID, &sync.Mutex{})
+	return lock.(*sync.Mutex)
+}
+
+func allFilesComplete(files []models.BoxFile) bool {
+	if len(files) == 0 {
+		return false
+	}
+
+	for _, file := range files {
+		if !file.IsComplete {
+			return false
+		}
+	}
+
+	return true
+}
+
+func manifestFilesReady(files []models.BoxFile) bool {
+	if len(files) == 0 {
+		return false
+	}
+	for _, file := range files {
+		if file.Status != models.FileStatusReady {
+			return false
+		}
+	}
+	return true
+}
+
+func stripOneTimeThumbnailState(files []models.BoxFile) []models.BoxFile {
+	stripped := make([]models.BoxFile, 0, len(files))
+	for _, file := range files {
+		file.ThumbnailPath = nil
+		file.ThumbnailURL = ""
+		if file.ThumbnailStatus == "" {
+			file.ThumbnailStatus = models.ThumbnailStatusUnsupported
+		}
+		stripped = append(stripped, file)
+	}
+	return stripped
+}
+
+func (app *App) handleDownloadFile(ctx *gin.Context) {
+	boxID := ctx.Param("id")
+	filename, ok := helpers.SafeFilename(ctx.Param("filename"))
+	if !boxstore.ValidBoxID(boxID) || !ok {
+		ctx.String(http.StatusBadRequest, "Invalid file")
+		return
+	}
+
+	manifest, hasManifest, authorized := app.authorizeBoxRequest(ctx, boxID, true)
+	if !authorized {
+		return
+	}
+	if hasManifest && manifest.OneTimeDownload {
+		ctx.String(http.StatusForbidden, "Individual downloads disabled for this box")
+		return
+	}
+
+	path, ok := boxstore.SafeBoxFilePath(boxID, filename)
+	if !ok {
+		ctx.String(http.StatusBadRequest, "Invalid file")
+		return
+	}
+
+	if _, err := os.Stat(path); err != nil {
+		ctx.String(http.StatusNotFound, "File not found")
+		return
+	}
+	if !boxstore.IsSafeRegularBoxFile(boxID, filename) {
+		ctx.String(http.StatusBadRequest, "Invalid file")
+		return
+	}
+
+	ctx.FileAttachment(path, filename)
+	if hasManifest && app.config.RenewOnDownloadEnabled {
+		boxstore.RenewManifest(boxID, manifest.RetentionSecs)
+	}
+}
+
+func (app *App) handleDownloadThumbnail(ctx *gin.Context) {
+	boxID := ctx.Param("id")
+	fileID := ctx.Param("file_id")
+	if !boxstore.ValidBoxID(boxID) {
+		ctx.String(http.StatusBadRequest, "Invalid box id")
+		return
+	}
+
+	manifest, hasManifest, authorized := app.authorizeBoxRequest(ctx, boxID, true)
+	if !authorized {
+		return
+	}
+	if hasManifest && manifest.OneTimeDownload {
+		ctx.String(http.StatusForbidden, "Thumbnails disabled for one-time boxes")
+		return
+	}
+
+	path, ok := boxstore.ThumbnailFilePath(boxID, fileID)
+	if !ok {
+		ctx.String(http.StatusBadRequest, "Invalid thumbnail")
+		return
+	}
+
+	if _, err := os.Stat(path); err != nil {
+		ctx.String(http.StatusNotFound, "Thumbnail not found")
+		return
+	}
+
+	ctx.Header("Content-Type", "image/jpeg")
+	ctx.File(path)
+}

lib/server/one_time_test.go

@@ -0,0 +1,219 @@
+package server
+
+import (
+	"archive/zip"
+	"bytes"
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"os"
+	"testing"
+	"time"
+
+	"github.com/gin-gonic/gin"
+
+	"warpbox/lib/boxstore"
+	"warpbox/lib/config"
+	"warpbox/lib/models"
+)
+
+const oneTimeTestBoxID = "0123456789abcdef0123456789abcdef"
+
+func TestOneTimeDownloadNotReadyDoesNotConsume(t *testing.T) {
+	app := setupOneTimeDownloadTest(t, false)
+	writeOneTimeManifest(t, models.FileStatusWork, false)
+
+	response := performOneTimeDownload(app)
+	if response.Code != http.StatusConflict {
+		t.Fatalf("expected not-ready download to return 409, got %d", response.Code)
+	}
+
+	manifest, err := boxstore.ReadManifest(oneTimeTestBoxID)
+	if err != nil {
+		t.Fatalf("ReadManifest returned error: %v", err)
+	}
+	if manifest.Consumed {
+		t.Fatal("expected not-ready box to remain unconsumed")
+	}
+}
+
+func TestOneTimeDownloadReadyConsumesAndDeletes(t *testing.T) {
+	app := setupOneTimeDownloadTest(t, false)
+	writeOneTimeManifest(t, models.FileStatusReady, true)
+
+	response := performOneTimeDownload(app)
+	if response.Code != http.StatusOK {
+		t.Fatalf("expected ready download to return 200, got %d", response.Code)
+	}
+	if _, err := zip.NewReader(bytes.NewReader(response.Body.Bytes()), int64(response.Body.Len())); err != nil {
+		t.Fatalf("expected valid zip body: %v", err)
+	}
+	if _, err := os.Stat(boxstore.BoxPath(oneTimeTestBoxID)); !os.IsNotExist(err) {
+		t.Fatalf("expected consumed box to be deleted, stat err=%v", err)
+	}
+}
+
+func TestOneTimeDownloadWriterFailureConsumesByDefault(t *testing.T) {
+	app := setupOneTimeDownloadTest(t, false)
+	writeOneTimeManifest(t, models.FileStatusReady, false)
+
+	response := performOneTimeDownload(app)
+	if response.Code != http.StatusInternalServerError {
+		t.Fatalf("expected failed ZIP to return 500, got %d", response.Code)
+	}
+	if _, err := os.Stat(boxstore.BoxPath(oneTimeTestBoxID)); !os.IsNotExist(err) {
+		t.Fatalf("expected failed ZIP to delete box by default, stat err=%v", err)
+	}
+}
+
+func TestOneTimeDownloadWriterFailureCanRemainRetryable(t *testing.T) {
+	app := setupOneTimeDownloadTest(t, true)
+	writeOneTimeManifest(t, models.FileStatusReady, false)
+
+	response := performOneTimeDownload(app)
+	if response.Code != http.StatusInternalServerError {
+		t.Fatalf("expected failed ZIP to return 500, got %d", response.Code)
+	}
+
+	manifest, err := boxstore.ReadManifest(oneTimeTestBoxID)
+	if err != nil {
+		t.Fatalf("ReadManifest returned error: %v", err)
+	}
+	if manifest.Consumed {
+		t.Fatal("expected failed retryable ZIP to remain unconsumed")
+	}
+}
+
+func TestOneTimeDownloadSecondAccessAfterConsumeIsGone(t *testing.T) {
+	app := setupOneTimeDownloadTest(t, false)
+	writeOneTimeManifest(t, models.FileStatusReady, true)
+
+	manifest, err := boxstore.ReadManifest(oneTimeTestBoxID)
+	if err != nil {
+		t.Fatalf("ReadManifest returned error: %v", err)
+	}
+	manifest.Consumed = true
+	if err := boxstore.WriteManifest(oneTimeTestBoxID, manifest); err != nil {
+		t.Fatalf("WriteManifest returned error: %v", err)
+	}
+
+	response := performOneTimeDownload(app)
+	if response.Code != http.StatusGone {
+		t.Fatalf("expected consumed download to return 410, got %d", response.Code)
+	}
+}
+
+func TestOneTimeStatusStripsThumbnailPath(t *testing.T) {
+	app := setupOneTimeDownloadTest(t, false)
+	app.config.APIEnabled = true
+	writeOneTimeManifest(t, models.FileStatusReady, true)
+
+	manifest, err := boxstore.ReadManifest(oneTimeTestBoxID)
+	if err != nil {
+		t.Fatalf("ReadManifest returned error: %v", err)
+	}
+	thumbnailPath := "/box/" + oneTimeTestBoxID + "/thumbnails/0123456789abcdef"
+	manifest.Files[0].ThumbnailPath = &thumbnailPath
+	manifest.Files[0].ThumbnailStatus = models.ThumbnailStatusReady
+	if err := boxstore.WriteManifest(oneTimeTestBoxID, manifest); err != nil {
+		t.Fatalf("WriteManifest returned error: %v", err)
+	}
+
+	response := performOneTimeStatus(app)
+	if response.Code != http.StatusOK {
+		t.Fatalf("expected status to return 200, got %d", response.Code)
+	}
+	var payload struct {
+		Files []models.BoxFile `json:"files"`
+	}
+	if err := json.Unmarshal(response.Body.Bytes(), &payload); err != nil {
+		t.Fatalf("json.Unmarshal returned error: %v", err)
+	}
+	if len(payload.Files) != 1 {
+		t.Fatalf("expected one file, got %#v", payload.Files)
+	}
+	if payload.Files[0].ThumbnailPath != nil {
+		t.Fatalf("expected one-time status to strip thumbnail path, got %q", *payload.Files[0].ThumbnailPath)
+	}
+}
+
+func TestRuntimeConfigAppliesDBOneTimeExpiryOverride(t *testing.T) {
+	restoreExpiry := boxstore.OneTimeDownloadExpiry()
+	defer boxstore.SetOneTimeDownloadExpiry(restoreExpiry)
+
+	cfg, err := config.Load()
+	if err != nil {
+		t.Fatalf("Load returned error: %v", err)
+	}
+	if err := cfg.ApplyOverrides(map[string]string{config.SettingOneTimeDownloadExpirySecs: "42"}); err != nil {
+		t.Fatalf("ApplyOverrides returned error: %v", err)
+	}
+	applyBoxstoreRuntimeConfig(cfg)
+
+	if got := boxstore.OneTimeDownloadExpiry(); got != 42 {
+		t.Fatalf("expected runtime one-time expiry to be updated from config, got %d", got)
+	}
+}
+
+func setupOneTimeDownloadTest(t *testing.T, retryOnFailure bool) *App {
+	t.Helper()
+	gin.SetMode(gin.TestMode)
+
+	restoreUploadRoot := boxstore.UploadRoot()
+	t.Cleanup(func() { boxstore.SetUploadRoot(restoreUploadRoot) })
+	boxstore.SetUploadRoot(t.TempDir())
+
+	return &App{config: &config.Config{
+		ZipDownloadsEnabled:           true,
+		OneTimeDownloadRetryOnFailure: retryOnFailure,
+	}}
+}
+
+func writeOneTimeManifest(t *testing.T, status string, createFile bool) {
+	t.Helper()
+	if err := os.MkdirAll(boxstore.BoxPath(oneTimeTestBoxID), 0755); err != nil {
+		t.Fatalf("MkdirAll returned error: %v", err)
+	}
+	if createFile {
+		path, ok := boxstore.SafeBoxFilePath(oneTimeTestBoxID, "file.txt")
+		if !ok {
+			t.Fatal("SafeBoxFilePath rejected test file")
+		}
+		if err := os.WriteFile(path, []byte("hello"), 0644); err != nil {
+			t.Fatalf("WriteFile returned error: %v", err)
+		}
+	}
+
+	manifest := models.BoxManifest{
+		Files: []models.BoxFile{{
+			ID:       "0123456789abcdef",
+			Name:     "file.txt",
+			Size:     5,
+			MimeType: "text/plain",
+			Status:   status,
+		}},
+		CreatedAt:       time.Now().UTC(),
+		OneTimeDownload: true,
+	}
+	if err := boxstore.WriteManifest(oneTimeTestBoxID, manifest); err != nil {
+		t.Fatalf("WriteManifest returned error: %v", err)
+	}
+}
+
+func performOneTimeDownload(app *App) *httptest.ResponseRecorder {
+	router := gin.New()
+	router.GET("/box/:id/download", app.handleDownloadBox)
+	request := httptest.NewRequest(http.MethodGet, "/box/"+oneTimeTestBoxID+"/download", nil)
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+	return response
+}
+
+func performOneTimeStatus(app *App) *httptest.ResponseRecorder {
+	router := gin.New()
+	router.GET("/box/:id/status", app.handleBoxStatus)
+	request := httptest.NewRequest(http.MethodGet, "/box/"+oneTimeTestBoxID+"/status", nil)
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+	return response
+}

lib/server/pages.go

@@ -0,0 +1,100 @@
+package server
+
+import (
+	"net/http"
+	"time"
+
+	"github.com/gin-gonic/gin"
+
+	"warpbox/lib/boxstore"
+	"warpbox/lib/models"
+)
+
+func formatBrowserTime(value time.Time) string {
+	if value.IsZero() {
+		return ""
+	}
+	return value.UTC().Format(time.RFC3339)
+}
+
+func (app *App) handleIndex(ctx *gin.Context) {
+	ctx.HTML(http.StatusOK, "index.html", gin.H{
+		"RetentionOptions": app.retentionOptions(),
+		"DefaultRetention": app.defaultRetentionOption().Key,
+		"UploadsEnabled":   app.config.GuestUploadsEnabled && app.config.APIEnabled,
+		"MaxFileSizeBytes": app.config.GlobalMaxFileSizeBytes,
+		"MaxBoxSizeBytes":  app.config.GlobalMaxBoxSizeBytes,
+	})
+}
+
+func (app *App) handleShowBox(ctx *gin.Context) {
+	boxID := ctx.Param("id")
+	if !boxstore.ValidBoxID(boxID) {
+		ctx.String(http.StatusBadRequest, "Invalid box id")
+		return
+	}
+
+	manifest, hasManifest, ok := app.authorizeBoxRequest(ctx, boxID, true)
+	if !ok {
+		return
+	}
+
+	files, err := boxstore.ListFiles(boxID)
+	if err != nil {
+		ctx.String(http.StatusNotFound, "Box not found")
+		return
+	}
+	if hasManifest && manifest.OneTimeDownload {
+		files = stripOneTimeThumbnailState(files)
+	}
+
+	downloadAll := "/box/" + boxID + "/download"
+	if !app.config.ZipDownloadsEnabled || hasManifest && manifest.DisableZip {
+		downloadAll = ""
+	}
+
+	ctx.HTML(http.StatusOK, "box.html", gin.H{
+		"BoxID":          boxID,
+		"Files":          files,
+		"FileCount":      len(files),
+		"DownloadAll":    downloadAll,
+		"ZipOnly":        hasManifest && manifest.OneTimeDownload,
+		"PollMS":         app.config.BoxPollIntervalMS,
+		"RetentionLabel": manifest.RetentionLabel,
+		"ExpiresAt":      manifest.ExpiresAt,
+		"ExpiresAtISO":   formatBrowserTime(manifest.ExpiresAt),
+	})
+}
+func (app *App) handleBoxStatus(ctx *gin.Context) {
+	if !app.requireAPI(ctx) {
+		return
+	}
+
+	boxID := ctx.Param("id")
+	if !boxstore.ValidBoxID(boxID) {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": "Invalid box id"})
+		return
+	}
+
+	manifest, hasManifest, ok := app.authorizeBoxRequest(ctx, boxID, false)
+	if !ok {
+		return
+	}
+
+	var files []models.BoxFile
+	if hasManifest && manifestFilesReady(manifest.Files) {
+		files = boxstore.DecorateFiles(boxID, manifest.Files)
+	} else {
+		var err error
+		files, err = boxstore.ListFiles(boxID)
+		if err != nil {
+			ctx.JSON(http.StatusNotFound, gin.H{"error": "Box not found"})
+			return
+		}
+	}
+	if hasManifest && manifest.OneTimeDownload {
+		files = stripOneTimeThumbnailState(files)
+	}
+
+	ctx.JSON(http.StatusOK, gin.H{"box_id": boxID, "expires_at": formatBrowserTime(manifest.ExpiresAt), "files": files})
+}

lib/server/retention.go

@@ -0,0 +1,49 @@
+package server
+
+import (
+	"strings"
+
+	"warpbox/lib/boxstore"
+	"warpbox/lib/models"
+)
+
+func (app *App) retentionAllowed(key string) bool {
+	key = strings.TrimSpace(key)
+	if key == "" {
+		return true
+	}
+	for _, option := range app.retentionOptions() {
+		if option.Key == key {
+			return true
+		}
+	}
+	return false
+}
+
+func (app *App) retentionOptions() []models.RetentionOption {
+	allOptions := boxstore.RetentionOptions()
+	options := make([]models.RetentionOption, 0, len(allOptions))
+	for _, option := range allOptions {
+		if option.Key == boxstore.OneTimeDownloadRetentionKey && !app.config.OneTimeDownloadsEnabled {
+			continue
+		}
+		if option.Seconds > 0 && app.config.MaxGuestExpirySeconds > 0 && option.Seconds > app.config.MaxGuestExpirySeconds {
+			continue
+		}
+		options = append(options, option)
+	}
+	if len(options) == 0 {
+		return allOptions[:1]
+	}
+	return options
+}
+
+func (app *App) defaultRetentionOption() models.RetentionOption {
+	options := app.retentionOptions()
+	for _, option := range options {
+		if option.Seconds == app.config.DefaultGuestExpirySeconds {
+			return option
+		}
+	}
+	return options[0]
+}

lib/server/security_test.go

@@ -0,0 +1,79 @@
+package server
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"os"
+	"testing"
+	"time"
+
+	"github.com/gin-gonic/gin"
+
+	"warpbox/lib/boxstore"
+	"warpbox/lib/config"
+	"warpbox/lib/metastore"
+	"warpbox/lib/models"
+)
+
+func TestValidateManifestFileUploadRejectsExpiredBox(t *testing.T) {
+	restoreUploadRoot := boxstore.UploadRoot()
+	defer boxstore.SetUploadRoot(restoreUploadRoot)
+	boxstore.SetUploadRoot(t.TempDir())
+
+	boxID := "0123456789abcdef0123456789abcdef"
+	if err := os.MkdirAll(boxstore.BoxPath(boxID), 0755); err != nil {
+		t.Fatalf("MkdirAll returned error: %v", err)
+	}
+	manifest := models.BoxManifest{
+		Files:     []models.BoxFile{{ID: "0123456789abcdef", Name: "file.txt", Status: models.FileStatusWait}},
+		ExpiresAt: time.Now().UTC().Add(-time.Second),
+	}
+	if err := boxstore.WriteManifest(boxID, manifest); err != nil {
+		t.Fatalf("WriteManifest returned error: %v", err)
+	}
+
+	app := &App{config: &config.Config{}}
+	if err := app.validateManifestFileUpload(boxID, "0123456789abcdef", 1); err == nil {
+		t.Fatal("expected expired box upload to be rejected")
+	}
+	if _, err := os.Stat(boxstore.BoxPath(boxID)); !os.IsNotExist(err) {
+		t.Fatalf("expected expired box to be deleted, stat err=%v", err)
+	}
+}
+
+func TestAdminProtectedPostRequiresCSRF(t *testing.T) {
+	gin.SetMode(gin.TestMode)
+
+	store, err := metastore.Open(t.TempDir())
+	if err != nil {
+		t.Fatalf("Open returned error: %v", err)
+	}
+	defer store.Close()
+
+	adminTag, err := store.EnsureAdminTag()
+	if err != nil {
+		t.Fatalf("EnsureAdminTag returned error: %v", err)
+	}
+	user, err := store.CreateUserWithPassword("admin", "", "secret", []string{adminTag.ID})
+	if err != nil {
+		t.Fatalf("CreateUserWithPassword returned error: %v", err)
+	}
+	session, err := store.CreateSession(user.ID, time.Hour)
+	if err != nil {
+		t.Fatalf("CreateSession returned error: %v", err)
+	}
+
+	app := &App{config: &config.Config{}, store: store}
+	router := gin.New()
+	router.POST("/admin/test", app.requireAdminSession, func(ctx *gin.Context) {
+		ctx.Status(http.StatusNoContent)
+	})
+
+	request := httptest.NewRequest(http.MethodPost, "/admin/test", nil)
+	request.AddCookie(&http.Cookie{Name: adminSessionCookie, Value: session.Token})
+	response := httptest.NewRecorder()
+	router.ServeHTTP(response, request)
+	if response.Code != http.StatusForbidden {
+		t.Fatalf("expected missing CSRF token to be forbidden, got %d", response.Code)
+	}
+}

lib/server/server.go

@@ -1,22 +1,91 @@
 package server
 
 import (
-	"net/http"
+	"fmt"
+	"time"
 
 	"github.com/gin-contrib/gzip"
 	"github.com/gin-gonic/gin"
+
+	"warpbox/lib/boxstore"
+	"warpbox/lib/config"
+	"warpbox/lib/metastore"
+	"warpbox/lib/routing"
 )
 
+type App struct {
+	config            *config.Config
+	store             *metastore.Store
+	adminLoginEnabled bool
+}
+
 func Run(addr string) error {
+	cfg, err := config.Load()
+	if err != nil {
+		return err
+	}
+	if err := cfg.EnsureDirectories(); err != nil {
+		return err
+	}
+
+	applyBoxstoreRuntimeConfig(cfg)
+
+	store, err := metastore.Open(cfg.DBDir)
+	if err != nil {
+		return fmt.Errorf("open metadata database: %w", err)
+	}
+	defer store.Close()
+
+	overrides, err := store.ListSettings()
+	if err != nil {
+		return fmt.Errorf("load settings overrides: %w", err)
+	}
+	if err := cfg.ApplyOverrides(overrides); err != nil {
+		return fmt.Errorf("apply settings overrides: %w", err)
+	}
+	applyBoxstoreRuntimeConfig(cfg)
+
+	bootstrap, err := metastore.BootstrapAdmin(cfg, store)
+	if err != nil {
+		return fmt.Errorf("bootstrap admin metadata: %w", err)
+	}
+
+	app := &App{
+		config:            cfg,
+		store:             store,
+		adminLoginEnabled: bootstrap.AdminLoginEnabled,
+	}
+
 	router := gin.Default()
 	router.LoadHTMLGlob("templates/*.html")
 
-	router.GET("/", func(ctx *gin.Context) {
-		ctx.HTML(http.StatusOK, "index.html", gin.H{})
+	routing.Register(router, routing.Handlers{
+		Index:              app.handleIndex,
+		ShowBox:            app.handleShowBox,
+		BoxLogin:           handleBoxLogin,
+		BoxLoginPost:       handleBoxLoginPost,
+		BoxStatus:          app.handleBoxStatus,
+		DownloadBox:        app.handleDownloadBox,
+		DownloadFile:       app.handleDownloadFile,
+		DownloadThumbnail:  app.handleDownloadThumbnail,
+		CreateBox:          app.handleCreateBox,
+		ManifestFileUpload: app.handleManifestFileUpload,
+		FileStatusUpdate:   app.handleFileStatusUpdate,
+		DirectBoxUpload:    app.handleDirectBoxUpload,
+		LegacyUpload:       app.handleLegacyUpload,
 	})
+	app.registerAccountRoutes(router)
+	app.registerAdminRoutes(router)
 
 	compressed := router.Group("/", gzip.Gzip(gzip.DefaultCompression))
 	compressed.Static("/static", "./static")
 
+	boxstore.StartThumbnailWorker(cfg.ThumbnailBatchSize, time.Duration(cfg.ThumbnailIntervalSeconds)*time.Second)
+
 	return router.Run(addr)
 }
+
+func applyBoxstoreRuntimeConfig(cfg *config.Config) {
+	boxstore.SetUploadRoot(cfg.UploadsDir)
+	boxstore.SetOneTimeDownloadExpiry(cfg.OneTimeDownloadExpirySeconds)
+}

lib/server/uploads.go

@@ -0,0 +1,240 @@
+package server
+
+import (
+	"io"
+	"net/http"
+	"os"
+	"strings"
+
+	"github.com/gin-gonic/gin"
+
+	"warpbox/lib/boxstore"
+	"warpbox/lib/helpers"
+	"warpbox/lib/models"
+)
+
+func (app *App) handleCreateBox(ctx *gin.Context) {
+	if !app.requireAPI(ctx) || !app.requireGuestUploads(ctx) {
+		return
+	}
+	app.limitRequestBody(ctx)
+
+	boxID, err := boxstore.NewBoxID()
+	if err != nil {
+		ctx.JSON(http.StatusInternalServerError, gin.H{"error": "Could not create upload box"})
+		return
+	}
+
+	if err := os.MkdirAll(boxstore.BoxPath(boxID), 0755); err != nil {
+		ctx.JSON(http.StatusInternalServerError, gin.H{"error": "Could not prepare upload box"})
+		return
+	}
+
+	var request models.CreateBoxRequest
+	if err := ctx.ShouldBindJSON(&request); err != nil && err != io.EOF {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": "Invalid box payload"})
+		return
+	}
+	if err := app.validateCreateBoxRequest(&request); err != nil {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+
+	files, err := boxstore.CreateManifest(boxID, request)
+	if err != nil {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+	app.indexBoxFromManifest(boxID)
+
+	ctx.JSON(http.StatusOK, gin.H{"box_id": boxID, "box_url": "/box/" + boxID, "files": files})
+}
+
+func (app *App) handleManifestFileUpload(ctx *gin.Context) {
+	if !app.requireAPI(ctx) || !app.requireGuestUploads(ctx) {
+		return
+	}
+	app.limitRequestBody(ctx)
+
+	boxID := ctx.Param("id")
+	fileID := ctx.Param("file_id")
+	if !boxstore.ValidBoxID(boxID) {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": "Invalid box id"})
+		return
+	}
+
+	file, err := ctx.FormFile("file")
+	if err != nil {
+		boxstore.MarkFileStatus(boxID, fileID, models.FileStatusFailed)
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": "No file received"})
+		return
+	}
+	if err := app.validateManifestFileUpload(boxID, fileID, file.Size); err != nil {
+		boxstore.MarkFileStatus(boxID, fileID, models.FileStatusFailed)
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+
+	savedFile, err := boxstore.SaveManifestUpload(boxID, fileID, file)
+	if err != nil {
+		boxstore.MarkFileStatus(boxID, fileID, models.FileStatusFailed)
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+	app.indexBoxFromManifest(boxID)
+
+	ctx.JSON(http.StatusOK, gin.H{"box_id": boxID, "box_url": "/box/" + boxID, "file": savedFile})
+}
+
+func (app *App) handleFileStatusUpdate(ctx *gin.Context) {
+	if !app.requireAPI(ctx) {
+		return
+	}
+	app.limitRequestBody(ctx)
+
+	boxID := ctx.Param("id")
+	fileID := ctx.Param("file_id")
+	if !boxstore.ValidBoxID(boxID) || !helpers.ValidLowerHexID(fileID, 16) {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": "Invalid file"})
+		return
+	}
+
+	var request models.UpdateFileStatusRequest
+	if err := ctx.ShouldBindJSON(&request); err != nil {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": "Invalid status payload"})
+		return
+	}
+	if request.Status == models.FileStatusReady {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": "Uploads must complete through the upload endpoint"})
+		return
+	}
+	if err := app.rejectExpiredManifestBox(boxID); err != nil {
+		ctx.JSON(http.StatusGone, gin.H{"error": err.Error()})
+		return
+	}
+
+	file, err := boxstore.MarkFileStatus(boxID, fileID, request.Status)
+	if err != nil {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+	app.indexBoxFromManifest(boxID)
+
+	ctx.JSON(http.StatusOK, gin.H{"file": file})
+}
+
+func (app *App) handleDirectBoxUpload(ctx *gin.Context) {
+	if !app.requireAPI(ctx) || !app.requireGuestUploads(ctx) {
+		return
+	}
+	app.limitRequestBody(ctx)
+
+	boxID := ctx.Param("id")
+	if !boxstore.ValidBoxID(boxID) {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": "Invalid box id"})
+		return
+	}
+
+	file, err := ctx.FormFile("file")
+	if err != nil {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": "No file received"})
+		return
+	}
+	if err := app.validateIncomingFile(boxID, file.Size); err != nil {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+
+	savedFile, err := boxstore.SaveUpload(boxID, file)
+	if err != nil {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+
+	ctx.JSON(http.StatusOK, gin.H{"box_id": boxID, "box_url": "/box/" + boxID, "file": savedFile})
+}
+
+func (app *App) handleLegacyUpload(ctx *gin.Context) {
+	if !app.requireAPI(ctx) || !app.requireGuestUploads(ctx) {
+		return
+	}
+	app.limitRequestBody(ctx)
+
+	form, err := ctx.MultipartForm()
+	if err != nil {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": "No files received"})
+		return
+	}
+
+	files := form.File["files"]
+	if len(files) == 0 {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": "No files received"})
+		return
+	}
+	totalSize := int64(0)
+	for _, file := range files {
+		if err := app.validateFileSize(file.Size); err != nil {
+			ctx.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+			return
+		}
+		totalSize += file.Size
+	}
+	if err := app.validateBoxSize(totalSize); err != nil {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+
+	boxID, err := boxstore.NewBoxID()
+	if err != nil {
+		ctx.JSON(http.StatusInternalServerError, gin.H{"error": "Could not create upload box"})
+		return
+	}
+
+	if err := os.MkdirAll(boxstore.BoxPath(boxID), 0755); err != nil {
+		ctx.JSON(http.StatusInternalServerError, gin.H{"error": "Could not prepare upload box"})
+		return
+	}
+
+	retentionKey := strings.TrimSpace(ctx.PostForm("retention_key"))
+	if retentionKey == "" {
+		retentionKey = strings.TrimSpace(ctx.PostForm("retention"))
+	}
+	allowZip := true
+	if strings.EqualFold(strings.TrimSpace(ctx.PostForm("allow_zip")), "false") {
+		allowZip = false
+	}
+	request := models.CreateBoxRequest{
+		RetentionKey: retentionKey,
+		Password:     ctx.PostForm("password"),
+		AllowZip:     &allowZip,
+		Files:        make([]models.CreateBoxFileRequest, 0, len(files)),
+	}
+	for _, file := range files {
+		request.Files = append(request.Files, models.CreateBoxFileRequest{Name: file.Filename, Size: file.Size})
+	}
+	if err := app.validateCreateBoxRequest(&request); err != nil {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+
+	manifestFiles, err := boxstore.CreateManifest(boxID, request)
+	if err != nil {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+
+	savedFiles := make([]models.BoxFile, 0, len(files))
+	for index, file := range files {
+		savedFile, err := boxstore.SaveManifestUpload(boxID, manifestFiles[index].ID, file)
+		if err != nil {
+			_, _ = boxstore.MarkFileStatus(boxID, manifestFiles[index].ID, models.FileStatusFailed)
+			ctx.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+			return
+		}
+
+		savedFiles = append(savedFiles, savedFile)
+	}
+	app.indexBoxFromManifest(boxID)
+
+	ctx.JSON(http.StatusOK, gin.H{"box_id": boxID, "box_url": "/box/" + boxID, "files": savedFiles})
+}

lib/server/validation.go

@@ -0,0 +1,155 @@
+package server
+
+import (
+	"fmt"
+	"net/http"
+	"strings"
+
+	"github.com/gin-gonic/gin"
+
+	"warpbox/lib/boxstore"
+	"warpbox/lib/models"
+)
+
+func (app *App) requireAPI(ctx *gin.Context) bool {
+	if app.config.APIEnabled {
+		return true
+	}
+	ctx.JSON(http.StatusForbidden, gin.H{"error": "API access is disabled"})
+	return false
+}
+
+func (app *App) requireGuestUploads(ctx *gin.Context) bool {
+	if app.config.GuestUploadsEnabled {
+		return true
+	}
+	ctx.JSON(http.StatusForbidden, gin.H{"error": "Guest uploads are disabled"})
+	return false
+}
+
+func (app *App) validateCreateBoxRequest(request *models.CreateBoxRequest) error {
+	if request == nil {
+		return nil
+	}
+	if !app.retentionAllowed(request.RetentionKey) {
+		return fmt.Errorf("Retention option is not allowed")
+	}
+	if !app.config.ZipDownloadsEnabled {
+		allowZip := false
+		request.AllowZip = &allowZip
+	}
+	if strings.TrimSpace(request.RetentionKey) == boxstore.OneTimeDownloadRetentionKey && !app.config.OneTimeDownloadsEnabled {
+		return fmt.Errorf("One-time downloads are disabled")
+	}
+
+	totalSize := int64(0)
+	for _, file := range request.Files {
+		if err := app.validateFileSize(file.Size); err != nil {
+			return err
+		}
+		totalSize += file.Size
+	}
+	return app.validateBoxSize(totalSize)
+}
+
+func (app *App) validateIncomingFile(boxID string, size int64) error {
+	if err := app.validateFileSize(size); err != nil {
+		return err
+	}
+	if app.config.GlobalMaxBoxSizeBytes <= 0 {
+		return nil
+	}
+
+	files, err := boxstore.ListFiles(boxID)
+	if err != nil {
+		return nil
+	}
+	totalSize := size
+	for _, file := range files {
+		totalSize += file.Size
+	}
+	return app.validateBoxSize(totalSize)
+}
+
+func (app *App) validateManifestFileUpload(boxID string, fileID string, size int64) error {
+	if err := app.validateFileSize(size); err != nil {
+		return err
+	}
+
+	manifest, err := boxstore.ReadManifest(boxID)
+	if err != nil {
+		return app.validateIncomingFile(boxID, size)
+	}
+	if boxstore.IsExpired(manifest) {
+		_ = boxstore.DeleteBox(boxID)
+		return fmt.Errorf("Box expired")
+	}
+	if app.config.GlobalMaxBoxSizeBytes <= 0 {
+		return nil
+	}
+	totalSize := int64(0)
+	found := false
+	for _, file := range manifest.Files {
+		if file.ID == fileID {
+			totalSize += size
+			found = true
+			continue
+		}
+		totalSize += file.Size
+	}
+	if !found {
+		totalSize += size
+	}
+	return app.validateBoxSize(totalSize)
+}
+
+func (app *App) validateFileSize(size int64) error {
+	if size < 0 {
+		return fmt.Errorf("File size cannot be negative")
+	}
+	if app.config.GlobalMaxFileSizeBytes > 0 && size > app.config.GlobalMaxFileSizeBytes {
+		return fmt.Errorf("File exceeds the global max file size")
+	}
+	return nil
+}
+
+func (app *App) validateBoxSize(size int64) error {
+	if size < 0 {
+		return fmt.Errorf("Box size cannot be negative")
+	}
+	if app.config.GlobalMaxBoxSizeBytes > 0 && size > app.config.GlobalMaxBoxSizeBytes {
+		return fmt.Errorf("Box exceeds the global max box size")
+	}
+	return nil
+}
+
+func (app *App) rejectExpiredManifestBox(boxID string) error {
+	manifest, err := boxstore.ReadManifest(boxID)
+	if err != nil {
+		return nil
+	}
+	if !boxstore.IsExpired(manifest) {
+		return nil
+	}
+	_ = boxstore.DeleteBox(boxID)
+	return fmt.Errorf("Box expired")
+}
+
+func (app *App) limitRequestBody(ctx *gin.Context) {
+	limit := app.maxRequestBodyBytes()
+	if limit <= 0 {
+		return
+	}
+	ctx.Request.Body = http.MaxBytesReader(ctx.Writer, ctx.Request.Body, limit)
+}
+
+func (app *App) maxRequestBodyBytes() int64 {
+	limit := app.config.GlobalMaxBoxSizeBytes
+	if limit <= 0 || app.config.GlobalMaxFileSizeBytes > limit {
+		limit = app.config.GlobalMaxFileSizeBytes
+	}
+	if limit <= 0 {
+		return 0
+	}
+	return limit + 10*1024*1024
+}

run.sh

@@ -0,0 +1,42 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Load .env if exists
+if [ -f .env ]; then
+  export $(grep -v '^#' .env | xargs)
+fi
+
+# Core service switches.
+export WARPBOX_GUEST_UPLOADS_ENABLED="${WARPBOX_GUEST_UPLOADS_ENABLED:-true}"
+export WARPBOX_API_ENABLED="${WARPBOX_API_ENABLED:-true}"
+export WARPBOX_ZIP_DOWNLOADS_ENABLED="${WARPBOX_ZIP_DOWNLOADS_ENABLED:-true}"
+export WARPBOX_ONE_TIME_DOWNLOADS_ENABLED="${WARPBOX_ONE_TIME_DOWNLOADS_ENABLED:-true}"
+export WARPBOX_ONE_TIME_DOWNLOAD_EXPIRY_SECONDS="${WARPBOX_ONE_TIME_DOWNLOAD_EXPIRY_SECONDS:-604800}" # 7 days
+export WARPBOX_ONE_TIME_DOWNLOAD_RETRY_ON_FAILURE="${WARPBOX_ONE_TIME_DOWNLOAD_RETRY_ON_FAILURE:-false}"
+
+# Storage and expiry limits used by the upload UI and backend validators.
+# Use megabytes here; WarpBox converts these to bytes internally.
+export WARPBOX_GLOBAL_MAX_FILE_SIZE_MB="${WARPBOX_GLOBAL_MAX_FILE_SIZE_MB:-2048}"   # 2 GiB
+export WARPBOX_GLOBAL_MAX_BOX_SIZE_MB="${WARPBOX_GLOBAL_MAX_BOX_SIZE_MB:-4096}"    # 4 GiB
+export WARPBOX_DEFAULT_GUEST_EXPIRY_SECONDS="${WARPBOX_DEFAULT_GUEST_EXPIRY_SECONDS:-3600}"    # 1 hour
+export WARPBOX_MAX_GUEST_EXPIRY_SECONDS="${WARPBOX_MAX_GUEST_EXPIRY_SECONDS:-172800}"          # 48 hours
+
+# Download-page refresh and thumbnail worker tuning.
+export WARPBOX_BOX_POLL_INTERVAL_MS="${WARPBOX_BOX_POLL_INTERVAL_MS:-5000}"
+export WARPBOX_THUMBNAIL_BATCH_SIZE="${WARPBOX_THUMBNAIL_BATCH_SIZE:-10}"
+export WARPBOX_THUMBNAIL_INTERVAL_SECONDS="${WARPBOX_THUMBNAIL_INTERVAL_SECONDS:-30}"
+
+# Data location.
+export WARPBOX_DATA_DIR="${WARPBOX_DATA_DIR:-./data}"
+
+# Admin Area
+export WARPBOX_ADMIN_ENABLED="${WARPBOX_ADMIN_ENABLED:-true}"
+export WARPBOX_ADMIN_PASSWORD="${WARPBOX_ADMIN_PASSWORD:-123}"
+
+# Option to run via Docker Compose
+if [ "${1:-}" = "--docker" ]; then
+  docker-compose up --build
+  exit 0
+fi
+
+go run ./cmd run

static/css/admin.css

@@ -0,0 +1,132 @@
+body {
+    min-height: 100vh;
+}
+
+.admin-window {
+    width: min(1120px, calc(100vw - 32px));
+    margin: 32px auto;
+}
+
+.admin-panel {
+    display: grid;
+    gap: 16px;
+    padding: 16px;
+    background-color: #ffffff;
+    background-image:
+        linear-gradient(180deg, rgba(255,255,255,.9), rgba(238,238,238,.58)),
+        repeating-linear-gradient(0deg, rgba(0,0,0,.025) 0 1px, transparent 1px 6px);
+}
+
+.admin-nav {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 8px;
+    align-items: center;
+}
+
+.admin-spacer {
+    flex: 1;
+}
+
+.admin-grid {
+    display: grid;
+    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
+    gap: 12px;
+}
+
+.admin-link {
+    min-height: 88px;
+    padding: 12px;
+    color: inherit;
+    text-decoration: none;
+    background: #dfdfdf;
+    border-top: 1px solid #ffffff;
+    border-left: 1px solid #ffffff;
+    border-right: 1px solid #808080;
+    border-bottom: 1px solid #808080;
+    box-shadow: inset 1px 1px 0 #f7f7f7, inset -1px -1px 0 #b0b0b0;
+}
+
+.admin-link strong,
+.admin-link span {
+    display: block;
+}
+
+.admin-link span {
+    margin-top: 8px;
+}
+
+.admin-table {
+    width: 100%;
+    border-collapse: collapse;
+    background: #fff;
+    border-top: 2px solid #808080;
+    border-left: 2px solid #808080;
+    border-right: 2px solid #ffffff;
+    border-bottom: 2px solid #ffffff;
+}
+
+.admin-table th,
+.admin-table td {
+    padding: 8px;
+    border: 1px solid #808080;
+    text-align: left;
+    vertical-align: top;
+}
+
+.admin-form {
+    display: grid;
+    gap: 10px;
+}
+
+.admin-form-row {
+    display: grid;
+    gap: 4px;
+}
+
+.admin-form-row input,
+.admin-form-row textarea,
+.admin-form-row select {
+    width: 100%;
+    min-height: 24px;
+    color: #000000;
+    background: #ffffff;
+    border-top: 1px solid #808080;
+    border-left: 1px solid #808080;
+    border-right: 1px solid #ffffff;
+    border-bottom: 1px solid #ffffff;
+    font-family: inherit;
+}
+
+.admin-checks {
+    display: grid;
+    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
+    gap: 8px;
+}
+
+.admin-checks label {
+    display: flex;
+    gap: 6px;
+    align-items: center;
+}
+
+.admin-error {
+    padding: 8px;
+    border: 1px solid #800;
+    background: #ffdede;
+}
+
+.admin-summary {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 8px;
+}
+
+.admin-summary span {
+    padding: 6px 8px;
+    background: #dfdfdf;
+    border-top: 1px solid #ffffff;
+    border-left: 1px solid #ffffff;
+    border-right: 1px solid #808080;
+    border-bottom: 1px solid #808080;
+}

static/css/app.css

@@ -15,69 +15,423 @@
 }
 
 @font-face {
-    font-family: 'PixelOperatorMono';
-    src: url('/static/fonts/pixel_operator/PixelOperatorMono-Bold.ttf');
-    font-weight: bold;
-}
-
-@font-face {
-    font-family: 'PixeloidSans';
-    src: url('/static/fonts/pixeloid_sans/PixeloidSans.ttf');
-}
-
-@font-face {
-    font-family: 'PixeloidSans';
-    src: url('/static/fonts/pixeloid_sans/PixeloidSans-Bold.ttf');
-    font-weight: bold;
+    font-family: 'MonoCraft';
+    src: url('/static/fonts/Monocraft.ttf');
 }
 
 :root {
-    font-family: 'PixeloidSans', 'PixelOperator', sans-serif, Arial, Helvetica;
+    font-family: 'MonoCraft', 'PixelOperatorMono', 'Courier New', monospace;
     font-smooth: never;
-
+    -webkit-font-smoothing: none;
+    -moz-osx-font-smoothing: grayscale;
+    text-rendering: geometricPrecision;
     image-rendering: pixelated;
 
-    cursor: url('/static/cursors/vaporwave-hotline-white-plus/Normal\ Select.cur'), auto;
-
-    --base-font-size: 14px;
-
-    /* Colours */
+    --base-font-size: 13px;
+    --ui-scale: 1;
     --w98-blue: #000078;
-    --w98-blue-gradient: linear-gradient(to right, #000078, 80%, #0f80cd);
+    --w98-blue-gradient: linear-gradient(90deg, #000078 0%, #000078 28%, #0f80cd 50%, #000078 72%, #000078 100%);
     --w98-gray: #c0c0c0;
     --w98-gray2: #a6a6a6;
-    --w98-gray-gradient: linear-gradient(to bottom, #fff, 95%, #c0c0c0);
-
-    scroll-behavior: smooth;
+    --ok: #008000;
+    --danger: #800000;
 }
 
-a, .window-roach-message, .window-buttons .wbtn:not(.disabled_button) {
-    cursor: url('/static/cursors/vaporwave-hotline-white-plus/Link\ Select.cur'), auto;
-}
-
-input[type="text"], textarea, [contenteditable="true"] {
-    cursor: url('/static/cursors/vaporwave-hotline-white-plus/Hotline\ Black\ Handwriting.cur'), text;
+* {
+    box-sizing: border-box;
+    scrollbar-width: auto;
+    scrollbar-color: #c0c0c0 #808080;
+    image-rendering: pixelated;
 }
 
 html {
+    min-height: 100%;
     font-size: var(--base-font-size);
-
-    color: white;
-    background-color: #000;
+    color: #ffffff;
+    background: #000000;
 }
 
-html, body {
+html,
+body {
     margin: 0;
     padding: 0;
-
-    overflow-x: hidden;
 }
 
 body {
+    min-height: 100vh;
+    overflow-x: hidden;
     background-color: #000000;
     background-image: url('/static/img/bg/stars1.gif');
     background-repeat: repeat;
-    width: 100vw;
-    min-height: 100vh;
-    height: auto;
+    background-size: auto;
+    font-family: 'MonoCraft', 'PixelOperatorMono', 'Courier New', monospace;
+}
+
+main {
+    min-height: 100vh;
+    display: grid;
+    place-items: center;
+    padding: 18px;
+}
+
+button,
+label[for],
+.menu-button,
+.win98-button:not(:disabled),
+a {
+    cursor: pointer;
+}
+
+button,
+input,
+select,
+textarea {
+    font-family: inherit;
+}
+
+input[type="text"],
+input[type="password"],
+input[type="number"],
+input[type="file"],
+textarea {
+    cursor: text;
+}
+
+:focus-visible {
+    outline: 2px dotted #000078;
+    outline-offset: 2px;
+}
+
+::-webkit-scrollbar {
+    width: 17px;
+    height: 17px;
+    background: #c0c0c0;
+}
+
+::-webkit-scrollbar-track {
+    background: repeating-linear-gradient(45deg, #808080 0 2px, #8f8f8f 2px 4px);
+    border-top: 1px solid #808080;
+    border-left: 1px solid #808080;
+    border-right: 1px solid #ffffff;
+    border-bottom: 1px solid #ffffff;
+}
+
+::-webkit-scrollbar-thumb,
+::-webkit-scrollbar-button:single-button {
+    background: #c0c0c0;
+    border-top: 2px solid #ffffff;
+    border-left: 2px solid #ffffff;
+    border-right: 2px solid #000000;
+    border-bottom: 2px solid #000000;
+    box-shadow: inset -1px -1px 0 #808080, inset 1px 1px 0 #dfdfdf;
+}
+
+::-webkit-scrollbar-button:single-button {
+    width: 17px;
+    height: 17px;
+    background-color: #c0c0c0;
+    background-repeat: no-repeat;
+    background-position: center;
+    background-size: 7px 7px;
+}
+
+::-webkit-scrollbar-button:single-button:vertical:decrement {
+    background-image: linear-gradient(45deg, transparent 50%, #000000 50%), linear-gradient(135deg, #000000 50%, transparent 50%);
+    background-position: 5px 6px, 8px 6px;
+    background-size: 4px 4px, 4px 4px;
+}
+
+::-webkit-scrollbar-button:single-button:vertical:increment {
+    background-image: linear-gradient(225deg, transparent 50%, #000000 50%), linear-gradient(315deg, #000000 50%, transparent 50%);
+    background-position: 5px 7px, 8px 7px;
+    background-size: 4px 4px, 4px 4px;
+}
+
+::-webkit-scrollbar-button:single-button:horizontal:decrement {
+    background-image: linear-gradient(135deg, transparent 50%, #000000 50%), linear-gradient(45deg, #000000 50%, transparent 50%);
+    background-position: 6px 5px, 6px 8px;
+    background-size: 4px 4px, 4px 4px;
+}
+
+::-webkit-scrollbar-button:single-button:horizontal:increment {
+    background-image: linear-gradient(315deg, transparent 50%, #000000 50%), linear-gradient(225deg, #000000 50%, transparent 50%);
+    background-position: 7px 5px, 7px 8px;
+    background-size: 4px 4px, 4px 4px;
+}
+
+::-webkit-scrollbar-thumb:hover,
+::-webkit-scrollbar-button:single-button:hover {
+    background-color: #d0d0d0;
+}
+
+::-webkit-scrollbar-thumb:active,
+::-webkit-scrollbar-button:single-button:active {
+    border-top-color: #000000;
+    border-left-color: #000000;
+    border-right-color: #ffffff;
+    border-bottom-color: #ffffff;
+    box-shadow: inset -1px -1px 0 #dfdfdf, inset 1px 1px 0 #808080;
+}
+
+::-webkit-scrollbar-corner {
+    background: #c0c0c0;
+    border-top: 1px solid #808080;
+    border-left: 1px solid #808080;
+}
+
+.win98-button {
+    min-width: 92px;
+    height: 28px;
+    display: grid;
+    place-items: center;
+    margin: 0;
+    padding: 0 10px;
+    color: #000000;
+    background: var(--w98-gray);
+    border-top: 2px solid #ffffff;
+    border-left: 2px solid #ffffff;
+    border-right: 2px solid #000000;
+    border-bottom: 2px solid #000000;
+    box-shadow: inset -1px -1px 0 #808080, inset 1px 1px 0 #dfdfdf;
+    font-size: 13px;
+    line-height: 13px;
+    text-align: center;
+    text-decoration: none;
+    appearance: none;
+}
+
+.win98-button:disabled,
+.win98-button[aria-disabled="true"],
+button:disabled,
+button[aria-disabled="true"],
+input:disabled,
+select:disabled,
+textarea:disabled {
+    cursor: not-allowed;
+}
+
+.win98-button:disabled,
+.win98-button[aria-disabled="true"] {
+    color: #808080;
+    text-shadow: 1px 1px 0 #ffffff;
+}
+
+.win98-button:active:not(:disabled):not([aria-disabled="true"]),
+.win98-control:active,
+.menu-button[aria-expanded="true"] {
+    border-top-color: #000000;
+    border-left-color: #000000;
+    border-right-color: #ffffff;
+    border-bottom-color: #ffffff;
+    box-shadow: inset -1px -1px 0 #dfdfdf, inset 1px 1px 0 #808080;
+    padding-top: 1px;
+}
+
+.modal-backdrop {
+    position: fixed;
+    inset: 0;
+    display: none;
+    background: rgba(128, 128, 128, .42);
+    z-index: 70;
+}
+
+.modal-backdrop.is-visible {
+    display: block;
+}
+
+.popup-window {
+    position: fixed;
+    left: 50%;
+    top: 50%;
+    transform: translate(-50%, -50%);
+    width: min(780px, calc(100vw - 24px));
+    max-height: min(760px, calc(100vh - 24px));
+    display: none;
+    z-index: 80;
+    zoom: var(--ui-scale);
+}
+
+.popup-window.is-visible {
+    display: flex;
+    animation: popup-open-v10 180ms steps(5, end);
+}
+
+.popup-body {
+    flex: 1 1 auto;
+    min-height: 0;
+    max-height: calc(100vh - 90px);
+    margin: 0 6px 6px;
+    padding: 12px;
+    overflow: auto;
+    color: #000000;
+    background-color: #ffffff;
+    background-image:
+        linear-gradient(180deg, rgba(255,255,255,.9), rgba(238,238,238,.58)),
+        repeating-linear-gradient(0deg, rgba(0,0,0,.025) 0 1px, transparent 1px 6px);
+    font-size: 13px;
+    line-height: 16px;
+}
+
+.popup-body h3 { margin: 0 0 8px; font-size: 16px; line-height: 18px; }
+.popup-body h4 { margin: 14px 0 6px; font-size: 14px; line-height: 16px; }
+.popup-body p { margin: 0 0 8px; }
+.popup-body ul,
+.popup-body ol { margin: 0 0 8px 18px; padding: 0; }
+.popup-body li { margin: 0 0 4px; }
+.popup-body .code-block {
+    margin: 6px 0 10px;
+    width: 100%;
+    max-width: 100%;
+    display: block;
+    overflow: auto;
+    overscroll-behavior: contain;
+    padding: 8px;
+    color: #00ff66;
+    background: #000000;
+    border: 0;
+    font-family: 'MonoCraft', 'PixelOperatorMono', 'Courier New', monospace;
+    font-size: 12px;
+    line-height: 15px;
+    white-space: pre;
+    user-select: text;
+    -webkit-user-select: text;
+    cursor: text;
+    box-sizing: border-box;
+    contain: layout paint;
+}
+
+.popup-body .code-block code {
+    display: inline-block;
+    min-width: 100%;
+    color: inherit;
+    font: inherit;
+    white-space: inherit;
+    user-select: text;
+    -webkit-user-select: text;
+}
+
+.copy-fallback-text {
+    width: 100%;
+    min-height: 58px;
+    font-family: 'MonoCraft', 'PixelOperatorMono', monospace;
+}
+
+.popup-window.is-properties-popup {
+    width: min(520px, calc(100vw - 24px));
+}
+
+.popup-window.is-preview-popup {
+    width: min(760px, calc(100vw - 24px));
+}
+
+.toast {
+    position: fixed;
+    right: 12px;
+    bottom: 52px;
+    max-width: min(360px, calc(100vw - 24px));
+    display: none;
+    padding: 8px 10px;
+    color: #000000;
+    background: #ffffcc;
+    border-top: 2px solid #ffffff;
+    border-left: 2px solid #ffffff;
+    border-right: 2px solid #000000;
+    border-bottom: 2px solid #000000;
+    z-index: 90;
+    font-size: 12px;
+    line-height: 14px;
+    box-shadow: 4px 4px 0 rgba(0,0,0,.45);
+    zoom: var(--ui-scale);
+}
+
+.toast.is-visible {
+    display: block;
+    animation: toast-in 180ms steps(3, end), toast-buzz 700ms steps(2, end) 180ms;
+}
+
+.toast.toast-warning {
+    color: #000000;
+    background: #ffffcc;
+    border: 4px solid transparent;
+    border-image: repeating-linear-gradient(45deg, #111111 0 8px, #ffcc00 8px 16px) 4;
+}
+
+.toast.toast-error {
+    color: #ffffff;
+    background: #b00000;
+    text-shadow: 1px 1px 0 #000000;
+    border-color: #ffb0b0 #330000 #330000 #ffb0b0;
+}
+
+@keyframes popup-open-v10 {
+    from { transform: translate(-50%, -48%) scale(.97); opacity: .35; }
+    to { transform: translate(-50%, -50%) scale(1); opacity: 1; }
+}
+
+@keyframes toast-in { from { transform: translateY(12px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
+@keyframes toast-buzz { 0%, 100% { margin-right: 0; } 25% { margin-right: 2px; } 50% { margin-right: -2px; } }
+
+@media (min-width: 1800px) {
+    :root { --base-font-size: 14px; --ui-scale: 1.2; }
+}
+
+@media (min-width: 2048px) {
+    :root { --base-font-size: 15px; --ui-scale: 1.36; }
+}
+
+@media (min-width: 2560px) {
+    :root { --base-font-size: 16px; --ui-scale: 1.58; }
+}
+
+@media (min-width: 3200px) {
+    :root { --base-font-size: 18px; --ui-scale: 1.88; }
+}
+
+.start-upload-cta {
+	min-width: 128px;
+	position: relative;
+	overflow: visible;
+	isolation: isolate;
+	font-weight: bold;
+}
+
+.start-upload-cta.is-current-step {
+	animation: start-ready-rainbow-breathe 1150ms ease-in-out infinite;
+	box-shadow: inset -1px -1px 0 #808080, inset 1px 1px 0 #dfdfdf, 0 0 0 1px #000000;
+}
+
+.start-upload-cta.is-current-step::after {
+	content: "";
+	position: absolute;
+	inset: -4px;
+	pointer-events: none;
+	z-index: 1;
+	padding: 4px;
+	background: linear-gradient(90deg, #ff004c, #ffcc00, #00d26a, #00a2ff, #8c48ff, #ff004c, #ffcc00);
+	background-size: 280% 100%;
+	opacity: .9;
+	-webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
+	-webkit-mask-composite: xor;
+	mask-composite: exclude;
+	animation: start-border-rainbow-slide 1850ms linear infinite;
+}
+
+@keyframes start-ready-rainbow-breathe {
+	0%, 100% { transform: scale(1); }
+	50% { transform: scale(1.02); }
+}
+
+@keyframes start-border-rainbow-slide {
+	from { background-position: 0% 0%; }
+	to { background-position: 200% 0%; }
+}
+
+@media (prefers-reduced-motion: reduce) {
+	*,
+	*::before,
+	*::after {
+		animation-duration: 1ms !important;
+		animation-iteration-count: 1 !important;
+		scroll-behavior: auto !important;
+	}
 }

static/css/box.css

@@ -0,0 +1,347 @@
+.box-window {
+    width: min(860px, calc(100vw - 36px));
+    height: min(560px, calc(100vh - 36px));
+    zoom: var(--ui-scale);
+}
+
+body.fit-window .box-window {
+    width: min(980px, calc(100vw / var(--ui-scale) - 20px));
+    height: min(720px, calc(100vh / var(--ui-scale) - 20px));
+}
+
+.box-command-row {
+    display: grid;
+    grid-template-columns: minmax(0, 1fr) auto auto;
+    align-items: center;
+    gap: 8px;
+    min-height: 40px;
+    padding: 6px 8px;
+}
+
+.box-toolbar-button {
+    width: auto;
+    min-width: 158px;
+    display: inline-flex;
+    gap: 6px;
+    align-items: center;
+    justify-content: center;
+    white-space: nowrap;
+}
+
+.box-toolbar-button img {
+    width: 16px;
+    height: 16px;
+    image-rendering: pixelated;
+}
+
+.box-address {
+    grid-column: 1;
+    min-width: 0;
+    width: 100%;
+    height: 24px;
+    display: flex;
+    align-items: center;
+    padding: 0 6px;
+    overflow: hidden;
+    color: #000000;
+    background: #ffffff;
+    border-top: 1px solid #808080;
+    border-left: 1px solid #808080;
+    border-right: 1px solid #dfdfdf;
+    border-bottom: 1px solid #dfdfdf;
+    font-family: inherit;
+    font-size: 13px;
+    line-height: 13px;
+    text-align: left;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+}
+
+.win98-window.popup-window {
+    display: none;
+}
+
+.win98-window.popup-window.is-visible {
+    display: flex;
+}
+
+.box-meta {
+    min-height: 24px;
+    padding: 0 8px 6px;
+    color: #333333;
+    font-size: 12px;
+    line-height: 12px;
+}
+
+.box-meta span {
+    display: flex;
+    align-items: center;
+    min-height: 18px;
+}
+
+.box-panel {
+    flex: 1;
+    min-height: 0;
+    margin: 0 8px 8px;
+    overflow: auto;
+    background-color: #ffffff;
+    background-image:
+        linear-gradient(180deg, rgba(255,255,255,.9), rgba(238,238,238,.58)),
+        repeating-linear-gradient(0deg, rgba(0,0,0,.025) 0 1px, transparent 1px 6px);
+}
+
+.box-file-grid {
+    display: grid;
+    grid-template-columns: repeat(auto-fill, minmax(118px, 1fr));
+    gap: 8px;
+    padding: 10px;
+    box-sizing: border-box;
+}
+
+.box-file {
+    min-width: 0;
+    height: 96px;
+    display: grid;
+    grid-template-rows: 34px 18px 28px;
+    justify-items: center;
+    align-items: center;
+    padding: 8px 6px;
+    color: #000000;
+    text-decoration: none;
+}
+
+.box-file.is-loading,
+.box-file.is-failed {
+    color: #666666;
+    filter: grayscale(1);
+}
+
+.box-file.is-loading {
+    animation: box-loading-pulse 900ms steps(2, end) infinite;
+}
+
+.box-file.is-failed {
+    opacity: 0.58;
+}
+
+.box-file.is-failed .box-file-name::after {
+    content: " (failed)";
+}
+
+.box-file[aria-disabled="true"] {
+    cursor: default;
+}
+
+.box-file:hover,
+.box-file:focus-visible {
+    color: #ffffff;
+    background: #000078;
+    outline: 1px dotted #ffffff;
+    outline-offset: -3px;
+}
+
+.box-file-icon {
+    width: 32px;
+    height: 32px;
+    object-fit: contain;
+    image-rendering: pixelated;
+}
+
+.box-file.has-thumbnail .box-file-icon {
+    width: 40px;
+    height: 32px;
+    object-fit: cover;
+    background: #ffffff;
+    border: 1px solid #808080;
+}
+
+.box-file-name,
+.box-file-meta {
+    width: 100%;
+    min-width: 0;
+    overflow: hidden;
+    text-align: center;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+}
+
+@keyframes box-loading-pulse {
+    0% {
+        opacity: 0.48;
+    }
+
+    100% {
+        opacity: 0.82;
+    }
+}
+
+.box-file-name {
+    font-size: 13px;
+    line-height: 13px;
+}
+
+.box-file-meta {
+    align-self: start;
+    color: #555555;
+    font-size: 11px;
+    line-height: 13px;
+}
+
+.box-file:hover .box-file-meta,
+.box-file:focus-visible .box-file-meta {
+    color: #ffffff;
+}
+
+.box-context-menu {
+    position: fixed;
+    min-width: 168px;
+    display: none;
+    padding: 2px;
+    background: var(--w98-gray);
+    border-top: 2px solid #ffffff;
+    border-left: 2px solid #ffffff;
+    border-right: 2px solid #000000;
+    border-bottom: 2px solid #000000;
+    box-shadow: 3px 3px 0 rgba(0,0,0,.35);
+    z-index: 95;
+}
+
+.box-context-menu.is-visible {
+    display: block;
+}
+
+.box-context-menu button {
+    width: 100%;
+    min-height: 24px;
+    display: grid;
+    grid-template-columns: 20px minmax(0, 1fr);
+    gap: 8px;
+    align-items: center;
+    padding: 2px 7px;
+    color: #000000;
+    background: transparent;
+    border: 0;
+    font-family: inherit;
+    font-size: 12px;
+    line-height: 13px;
+    text-align: left;
+}
+
+.box-context-menu button:hover,
+.box-context-menu button:focus-visible {
+    color: #ffffff;
+    background: #000078;
+    outline: none;
+}
+
+.box-context-menu img {
+    width: 16px;
+    height: 16px;
+    object-fit: contain;
+    image-rendering: pixelated;
+}
+
+.properties-grid {
+    display: grid;
+    grid-template-columns: 92px minmax(0, 1fr);
+    gap: 7px 10px;
+    padding: 10px;
+    background: #dfdfdf;
+    border-top: 1px solid #808080;
+    border-left: 1px solid #808080;
+    border-right: 1px solid #ffffff;
+    border-bottom: 1px solid #ffffff;
+}
+
+.properties-grid dt {
+    font-weight: bold;
+}
+
+.properties-grid dd {
+    min-width: 0;
+    margin: 0;
+    overflow-wrap: anywhere;
+}
+
+.preview-frame {
+    width: min(680px, 100%);
+    min-height: 260px;
+    max-height: min(520px, calc(100vh - 160px));
+    display: block;
+    margin: 0 auto;
+    background: #000000;
+    border: 1px solid #808080;
+}
+
+.preview-frame.is-text {
+    min-height: 240px;
+    padding: 10px;
+    overflow: auto;
+    color: #00ff66;
+    font-family: 'MonoCraft', 'PixelOperatorMono', 'Courier New', monospace;
+    font-size: 12px;
+    line-height: 15px;
+    white-space: pre;
+}
+
+.preview-frame.is-text code {
+    display: inline-block;
+    min-width: 100%;
+    color: inherit;
+    font: inherit;
+    white-space: inherit;
+}
+
+.box-empty {
+    margin: 0;
+    padding: 12px;
+    color: #555555;
+    font-size: 13px;
+    line-height: 15px;
+}
+
+.box-statusbar {
+    grid-template-columns: 1fr 96px;
+}
+
+@media (max-width: 600px) {
+    main {
+        display: block;
+        min-height: 100dvh;
+        padding: 0;
+    }
+
+    .box-window {
+        width: 100vw;
+        height: 100dvh;
+        border: 0;
+        box-shadow: none;
+        zoom: 1;
+    }
+
+    .box-titlebar {
+        height: 24px;
+        margin: 0;
+    }
+
+    .box-menu {
+        height: 26px;
+    }
+
+    .box-command-row {
+        grid-template-columns: 1fr 1fr;
+    }
+
+    .box-address {
+        grid-column: 1 / -1;
+        grid-row: 1;
+    }
+
+    .box-panel {
+        margin: 0 6px 8px;
+    }
+
+    .box-file-grid {
+        grid-template-columns: repeat(auto-fill, minmax(104px, 1fr));
+    }
+}

static/css/components/buttons.css

@@ -0,0 +1,117 @@
+.menu-bar {
+    position: relative;
+    display: flex;
+    align-items: center;
+    gap: 2px;
+    height: 24px;
+    padding: 1px 6px;
+    font-size: 13px;
+    line-height: 13px;
+    z-index: 5;
+}
+
+.menu-item {
+    position: relative;
+}
+
+.menu-button {
+    height: 20px;
+    min-width: 54px;
+    padding: 0 8px;
+    color: #000000;
+    background: transparent;
+    border: 1px solid transparent;
+    font-family: inherit;
+    font-size: 13px;
+    text-align: left;
+}
+
+.menu-button:hover,
+.menu-button:focus-visible {
+    border-top: 1px solid #ffffff;
+    border-left: 1px solid #ffffff;
+    border-right: 1px solid #808080;
+    border-bottom: 1px solid #808080;
+    outline: none;
+}
+
+.menu-popup {
+    position: absolute;
+    top: 22px;
+    left: 0;
+    min-width: 198px;
+    padding: 2px;
+    display: none;
+    background: var(--w98-gray);
+    border-top: 2px solid #ffffff;
+    border-left: 2px solid #ffffff;
+    border-right: 2px solid #000000;
+    border-bottom: 2px solid #000000;
+    box-shadow: 3px 3px 0 rgba(0,0,0,.35);
+    z-index: 20;
+}
+
+.menu-item.is-open .menu-popup {
+    display: block;
+}
+
+.menu-action {
+    width: 100%;
+    min-height: 22px;
+    display: grid;
+    grid-template-columns: 20px minmax(0, 1fr) auto;
+    gap: 8px;
+    align-items: center;
+    padding: 2px 6px;
+    color: #000000;
+    background: transparent;
+    border: 0;
+    font-family: inherit;
+    font-size: 12px;
+    text-align: left;
+}
+
+.menu-action[aria-disabled="true"] {
+    color: #808080;
+    text-shadow: 1px 1px 0 #ffffff;
+}
+
+.menu-action[aria-disabled="true"] img {
+    opacity: .55;
+    filter: grayscale(1);
+}
+
+.menu-action[aria-disabled="true"]:hover,
+.menu-action[aria-disabled="true"]:focus-visible {
+    color: #808080;
+    background: transparent;
+}
+
+.menu-action img {
+    width: 16px;
+    height: 16px;
+    object-fit: contain;
+    image-rendering: pixelated;
+}
+
+.menu-action:hover,
+.menu-action:focus-visible {
+    color: #ffffff;
+    background: #000078;
+    outline: none;
+}
+
+.menu-separator {
+    height: 1px;
+    margin: 3px 2px;
+    background: #808080;
+    border-bottom: 1px solid #ffffff;
+}
+
+.shortcut {
+    color: #555555;
+}
+
+.menu-action:hover .shortcut {
+    color: #ffffff;
+}

static/css/components/toast.css

@@ -0,0 +1,38 @@
+.toast {
+    position: fixed;
+    right: 12px;
+    bottom: 52px;
+    max-width: min(360px, calc(100vw - 24px));
+    display: none;
+    padding: 8px 10px;
+    color: #000000;
+    background: #ffffcc;
+    border-top: 2px solid #ffffff;
+    border-left: 2px solid #ffffff;
+    border-right: 2px solid #000000;
+    border-bottom: 2px solid #000000;
+    z-index: 60;
+    font-size: 12px;
+    line-height: 14px;
+    box-shadow: 4px 4px 0 rgba(0,0,0,.45);
+    zoom: var(--ui-scale);
+}
+
+.toast.is-visible {
+    display: block;
+    animation: toast-in 180ms steps(3, end), toast-buzz 700ms steps(2, end) 180ms;
+}
+
+.toast.toast-warning {
+    color: #000000;
+    background: #ffffcc;
+    border: 4px solid transparent;
+    border-image: repeating-linear-gradient(45deg, #111111 0 8px, #ffcc00 8px 16px) 4;
+}
+
+.toast.toast-error {
+    color: #ffffff;
+    background: #b00000;
+    text-shadow: 1px 1px 0 #000000;
+    border-color: #ffb0b0 #330000 #330000 #ffb0b0;
+}

static/css/login.css

@@ -0,0 +1,133 @@
+.login-window {
+    width: 420px;
+    height: 248px;
+    zoom: var(--ui-scale);
+}
+
+.login-form {
+    display: flex;
+    flex: 1;
+    flex-direction: column;
+    min-height: 0;
+}
+
+.login-panel {
+    flex: 1;
+    margin: 8px;
+    padding: 12px;
+    background-color: #dfdfdf;
+    background-image: repeating-linear-gradient(45deg, rgba(255,255,255,.18) 0 1px, transparent 1px 5px);
+    border-top: 1px solid #ffffff;
+    border-left: 1px solid #ffffff;
+    border-right: 1px solid #808080;
+    border-bottom: 1px solid #808080;
+}
+
+.login-alert {
+    display: grid;
+    grid-template-columns: 34px minmax(0, 1fr);
+    gap: 10px;
+    align-items: center;
+    min-height: 48px;
+    margin-bottom: 12px;
+    font-size: 13px;
+    line-height: 15px;
+}
+
+.login-alert img {
+    width: 32px;
+    height: 32px;
+    object-fit: contain;
+    image-rendering: pixelated;
+}
+
+.login-alert p {
+    margin: 0;
+}
+
+.login-row {
+    display: grid;
+    grid-template-columns: 82px minmax(0, 1fr);
+    align-items: center;
+    gap: 8px;
+    margin-bottom: 8px;
+    font-size: 13px;
+    line-height: 13px;
+}
+
+.login-input {
+    width: 100%;
+    height: 24px;
+    padding: 2px 5px;
+    color: #000000;
+    background: #ffffff;
+    border-top: 1px solid #808080;
+    border-left: 1px solid #808080;
+    border-right: 1px solid #ffffff;
+    border-bottom: 1px solid #ffffff;
+    font-family: inherit;
+    font-size: 13px;
+    line-height: 13px;
+}
+
+.login-input[readonly] {
+    color: #555555;
+    background: #dfdfdf;
+}
+
+.login-error {
+    margin: 2px 0 0 90px;
+    color: #800000;
+    font-size: 12px;
+    line-height: 12px;
+}
+
+.login-actions {
+    display: flex;
+    justify-content: flex-end;
+    gap: 8px;
+    height: 40px;
+    padding: 0 8px 8px;
+}
+
+.login-actions .win98-button {
+    text-decoration: none;
+}
+
+.login-statusbar {
+    grid-template-columns: 1fr 96px;
+}
+
+@media (max-width: 600px) {
+    main {
+        display: block;
+        min-height: 100dvh;
+        padding: 0;
+    }
+
+    .login-window {
+        width: 100vw;
+        height: 100dvh;
+        border: 0;
+        box-shadow: none;
+        zoom: 1;
+    }
+
+    .login-titlebar {
+        height: 24px;
+        margin: 0;
+    }
+
+    .login-panel {
+        margin: 8px 6px;
+    }
+
+    .login-row {
+        grid-template-columns: 1fr;
+        gap: 4px;
+    }
+
+    .login-error {
+        margin-left: 0;
+    }
+}

static/css/upload/actions.css

@@ -0,0 +1,36 @@
+.upload-actions {
+    display: flex;
+    justify-content: flex-end;
+    gap: 8px;
+    height: 40px;
+    padding: 0 8px 8px;
+}
+
+.start-upload-cta {
+    min-width: 128px;
+    position: relative;
+    overflow: visible;
+    isolation: isolate;
+    font-weight: bold;
+}
+
+.start-upload-cta.is-current-step {
+    animation: start-ready-rainbow-breathe 1150ms ease-in-out infinite;
+    box-shadow: inset -1px -1px 0 #808080, inset 1px 1px 0 #dfdfdf, 0 0 0 1px #000000;
+}
+
+.start-upload-cta.is-current-step::after {
+    content: "";
+    position: absolute;
+    inset: -4px;
+    pointer-events: none;
+    z-index: 1;
+    padding: 4px;
+    background: linear-gradient(90deg, #ff004c, #ffcc00, #00d26a, #00a2ff, #8c48ff, #ff004c, #ffcc00);
+    background-size: 280% 100%;
+    opacity: .9;
+    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
+    -webkit-mask-composite: xor;
+    mask-composite: exclude;
+    animation: start-border-rainbow-slide 1850ms linear infinite;
+}

static/css/upload/dialog-content.css

@@ -0,0 +1,101 @@
+.duplicate-list,
+.quota-dialog-list {
+    margin: 8px 0;
+    padding: 6px 6px 6px 28px;
+    background: #ffffff;
+    border-top: 2px solid #808080;
+    border-left: 2px solid #808080;
+    border-right: 2px solid #ffffff;
+    border-bottom: 2px solid #ffffff;
+    max-height: 180px;
+    overflow: auto;
+}
+
+.quota-dialog-summary,
+.quota-note {
+    padding: 8px;
+    background: #ffffcc;
+    border: 1px solid #808080;
+}
+
+.quota-meter-list,
+.faq-list,
+.shortcut-list {
+    display: grid;
+    gap: 10px;
+}
+
+.quota-meter,
+.faq-item,
+.shortcut-list li {
+    padding: 8px;
+    background: #dfdfdf;
+    border-top: 1px solid #ffffff;
+    border-left: 1px solid #ffffff;
+    border-right: 1px solid #808080;
+    border-bottom: 1px solid #808080;
+}
+
+.quota-meter-head {
+    display: flex;
+    justify-content: space-between;
+    gap: 10px;
+    margin-bottom: 5px;
+    font-weight: bold;
+}
+
+.quota-meter-track {
+    height: 18px;
+    overflow: hidden;
+    background: #ffffff;
+    border-top: 2px solid #808080;
+    border-left: 2px solid #808080;
+    border-right: 2px solid #ffffff;
+    border-bottom: 2px solid #ffffff;
+}
+
+.quota-meter-bar {
+    display: block;
+    height: 100%;
+    background: #000078;
+}
+
+.copy-fallback-actions {
+    display: flex;
+    gap: 8px;
+    flex-wrap: wrap;
+    margin-top: 10px;
+}
+
+.copy-fallback-text {
+    width: 100%;
+    min-height: 58px;
+    font-family: 'MonoCraft', 'PixelOperatorMono', monospace;
+}
+
+.popup-body .code-block {
+    user-select: text;
+    -webkit-user-select: text;
+    cursor: text;
+}
+
+.popup-body .code-block code {
+    display: inline-block;
+    min-width: 100%;
+    color: inherit;
+    font: inherit;
+    white-space: inherit;
+    user-select: text;
+    -webkit-user-select: text;
+}
+
+.kbd {
+    display: inline-block;
+    min-width: 18px;
+    padding: 1px 5px;
+    color: #000000;
+    background: #c0c0c0;
+    border: 1px solid #000000;
+    box-shadow: inset 1px 1px 0 #ffffff, inset -1px -1px 0 #808080;
+    text-align: center;
+}

static/css/upload/dialogs.css

@@ -0,0 +1,95 @@
+.modal-backdrop {
+    position: fixed;
+    inset: 0;
+    display: none;
+    background: rgba(128, 128, 128, .42);
+    z-index: 70;
+}
+
+.modal-backdrop.is-visible {
+    display: block;
+}
+
+.popup-window {
+    position: fixed;
+    left: 50%;
+    top: 50%;
+    transform: translate(-50%, -50%);
+    width: min(780px, calc(100vw - 24px));
+    max-height: min(760px, calc(100vh - 24px));
+    display: none;
+    z-index: 80;
+    zoom: var(--ui-scale);
+}
+
+.popup-window.is-visible {
+    display: flex;
+    animation: popup-open-v10 180ms steps(5, end);
+}
+
+.popup-window.is-about-popup {
+    width: min(360px, calc(100vw - 28px));
+    min-height: 220px;
+}
+
+.popup-body {
+    flex: 1 1 auto;
+    min-height: 0;
+    max-height: calc(100vh - 90px);
+    padding: 12px;
+    overflow: auto;
+    font-size: 13px;
+    line-height: 16px;
+}
+
+.popup-body h3 { margin: 0 0 8px; font-size: 16px; line-height: 18px; }
+.popup-body h4 { margin: 14px 0 6px; font-size: 14px; line-height: 16px; }
+.popup-body p { margin: 0 0 8px; }
+.popup-body ul,
+.popup-body ol { margin: 0 0 8px 18px; padding: 0; }
+.popup-body li { margin: 0 0 4px; }
+.popup-body .code-block {
+    margin: 6px 0 10px;
+    width: 100%;
+    max-width: 100%;
+    display: block;
+    overflow: auto;
+    overscroll-behavior: contain;
+    padding: 8px;
+    color: #00ff66;
+    background: #000000;
+    border: 0;
+    font-family: 'MonoCraft', 'PixelOperatorMono', 'Courier New', monospace;
+    font-size: 12px;
+    line-height: 15px;
+    white-space: pre;
+    user-select: text;
+    -webkit-user-select: text;
+    box-sizing: border-box;
+    contain: layout paint;
+}
+
+.popup-window.is-about-popup .popup-body {
+    display: flex;
+    flex-direction: column;
+    justify-content: stretch;
+    overflow: hidden;
+}
+
+.about-popup-content {
+    flex: 1 1 auto;
+    display: flex;
+    flex-direction: column;
+    min-height: 0;
+}
+
+.about-popup-content p:last-child {
+    margin-top: auto;
+    margin-bottom: 0;
+    padding-top: 10px;
+}
+
+.popup-close {
+    cursor: pointer;
+}
+

static/css/upload/folders.css

@@ -0,0 +1,41 @@
+.folder-icon-button {
+    flex: 0 0 86px;
+    width: 86px;
+    min-width: 86px;
+    height: 68px;
+    display: grid;
+    grid-template-rows: 34px 1fr;
+    place-items: center;
+    gap: 4px;
+    padding: 4px;
+    color: #000000;
+    background: transparent;
+    border: 1px solid transparent;
+    font-family: inherit;
+    font-size: 12px;
+    line-height: 12px;
+}
+
+.folder-icon-button img {
+    width: 34px;
+    height: 34px;
+    object-fit: contain;
+    image-rendering: pixelated;
+}
+
+.folder-icon-button:hover,
+.folder-icon-button:focus-visible {
+    color: #ffffff;
+    background: #000078;
+    border: 1px dotted #ffffff;
+    outline: none;
+}
+
+.folder-icon-button-disabled {
+    color: #606060;
+}
+
+.folder-icon-button-disabled img {
+    filter: grayscale(.9);
+    opacity: .75;
+}

static/css/upload/layout.css

@@ -0,0 +1,43 @@
+.upload-main {
+    height: 100vh;
+    min-height: 0;
+    overflow: hidden;
+}
+
+.desktop-wrap {
+    --window-height: 736px;
+    --side-width: 440px;
+    width: min(1278px, 100%);
+    height: min(var(--window-height), calc(100vh - 36px));
+    max-height: calc(100vh - 36px);
+    display: grid;
+    grid-template-columns: minmax(0, 820px) var(--side-width);
+    grid-template-rows: minmax(0, 1fr);
+    align-items: stretch;
+    justify-content: center;
+    gap: 18px;
+    overflow: hidden;
+    zoom: var(--ui-scale);
+}
+
+body.fit-window .desktop-wrap {
+    width: min(100%, calc(100vw / var(--ui-scale) - 20px));
+    height: min(calc(100vh / var(--ui-scale) - 20px), 900px);
+    max-height: none;
+    grid-template-columns: minmax(0, 1fr) var(--side-width);
+}
+
+.upload-window {
+    width: 100%;
+    height: 100%;
+    min-height: 0;
+    overflow: hidden;
+}
+
+.upload-form {
+    display: flex;
+    flex: 1;
+    flex-direction: column;
+    min-height: 0;
+}
+

static/css/upload/options.css

@@ -0,0 +1,148 @@
+.box-options-form {
+    display: grid;
+    gap: 8px;
+    min-height: 100%;
+    align-content: start;
+}
+
+.box-options-form.is-locked {
+    opacity: .82;
+    filter: grayscale(.12);
+}
+
+.box-options-form.is-locked::after {
+    content: "Box sealed after upload";
+    display: block;
+    margin-top: 8px;
+    padding: 5px 6px;
+    color: #000000;
+    background: #dfdfdf;
+    border-top: 1px solid #808080;
+    border-left: 1px solid #808080;
+    border-right: 1px solid #ffffff;
+    border-bottom: 1px solid #ffffff;
+    font-size: 12px;
+    line-height: 13px;
+}
+
+.option-row {
+    display: grid;
+    grid-template-columns: 88px minmax(0, 1fr);
+    gap: 6px;
+    align-items: center;
+}
+
+.option-check {
+    position: relative;
+    min-height: 18px;
+    display: flex;
+    gap: 6px;
+    align-items: center;
+}
+
+.option-check input[type="checkbox"] {
+    position: absolute;
+    opacity: 0;
+    width: 1px;
+    height: 1px;
+    margin: 0;
+    pointer-events: none;
+}
+
+.option-check span {
+    position: relative;
+    min-height: 16px;
+    display: inline-flex;
+    align-items: center;
+    padding-left: 22px;
+}
+
+.option-check span::before {
+    content: "";
+    position: absolute;
+    left: 0;
+    top: 0;
+    width: 14px;
+    height: 14px;
+    background: #ffffff;
+    border-top: 2px solid #808080;
+    border-left: 2px solid #808080;
+    border-right: 2px solid #ffffff;
+    border-bottom: 2px solid #ffffff;
+    box-shadow: inset -1px -1px 0 #dfdfdf;
+}
+
+.option-check input[type="checkbox"]:checked + span::after {
+    content: "";
+    position: absolute;
+    left: 4px;
+    top: 6px;
+    width: 2px;
+    height: 2px;
+    color: #000000;
+    background: #000000;
+    box-shadow:
+        2px 2px 0 #000000,
+        4px 4px 0 #000000,
+        6px 2px 0 #000000,
+        8px 0 0 #000000,
+        10px -2px 0 #000000;
+    image-rendering: pixelated;
+}
+
+.upload-select,
+.upload-text-input {
+    width: 100%;
+    height: 22px;
+    padding: 1px 4px;
+    color: #000000;
+    background: #ffffff;
+    border-top: 1px solid #808080;
+    border-left: 1px solid #808080;
+    border-right: 1px solid #ffffff;
+    border-bottom: 1px solid #ffffff;
+    font-size: 12px;
+    line-height: 12px;
+}
+
+.upload-text-input:disabled,
+.upload-select:disabled,
+.box-options-form.is-locked input[readonly],
+.box-options-form.is-locked input:disabled,
+.box-options-form.is-locked select:disabled {
+    color: #404040;
+    background: repeating-linear-gradient(45deg, #d0d0d0 0 4px, #c7c7c7 4px 8px);
+}
+
+.api-key-row {
+    display: none;
+}
+
+.api-key-row.is-visible {
+    display: grid;
+}
+
+.api-key-field {
+    position: relative;
+    display: block;
+}
+
+.api-key-state {
+    position: absolute;
+    right: 4px;
+    top: 3px;
+    color: #000078;
+    font-size: 11px;
+    line-height: 12px;
+    pointer-events: none;
+}
+
+.api-key-field.is-checking::after {
+    content: "";
+    position: absolute;
+    inset: 2px;
+    background: repeating-linear-gradient(90deg, rgba(0,0,120,.16) 0 8px, rgba(15,128,205,.16) 8px 16px);
+    animation: api-key-scan 700ms steps(6, end) infinite;
+    pointer-events: none;
+}
+