refactor(upload): use IncomingFile interface instead of multipart headers

Refactors the upload handler to use the `services.IncomingFile` interface instead of concrete `*multipart.FileHeader` pointers. This decouples the core upload logic from the HTTP multipart implementation, allowing for more flexible file sources.

Changes include:
- Introducing `namedMultipartFile` to adapt multipart headers to the new interface.
- Updating `createOrAppendBox`, `checkUploadPolicy`, and `totalUploadBytes` to accept `IncomingFile`.
- Renaming service calls to `CreateBoxFromIncoming` and `AppendIncomingFiles`.

backend/libs/handlers/upload.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"io"
 	"mime/multipart"
 	"net/http"
 	"strconv"
@@ -62,7 +63,7 @@ func (a *App) Upload(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	files := uploadFiles(r)
+	files := uploadIncomingFiles(r)
 	totalBytes := totalUploadBytes(files)
 	var ownerID string
 	var collectionID string
@@ -164,7 +165,7 @@ func (a *App) Upload(w http.ResponseWriter, r *http.Request) {
 // uploadGroupWindow are folded into one box. Without the header the behaviour is
 // identical to creating a fresh box every time. Returns the result and how many
 // boxes were created (1 for a new box, 0 for an append) for usage accounting.
-func (a *App) createOrAppendBox(r *http.Request, user services.User, loggedIn bool, policy services.EffectiveUploadPolicy, files []*multipart.FileHeader, opts services.UploadOptions, enforceBoxLimits bool) (services.UploadResult, int, int, string, error) {
+func (a *App) createOrAppendBox(r *http.Request, user services.User, loggedIn bool, policy services.EffectiveUploadPolicy, files []services.IncomingFile, opts services.UploadOptions, enforceBoxLimits bool) (services.UploadResult, int, int, string, error) {
 	batch := strings.TrimSpace(r.Header.Get(uploadBatchHeader))
 	if batch == "" {
 		if enforceBoxLimits {
@@ -172,7 +173,7 @@ func (a *App) createOrAppendBox(r *http.Request, user services.User, loggedIn bo
 				return services.UploadResult{}, 0, status, message, nil
 			}
 		}
-		result, err := a.uploadService.CreateBox(files, opts)
+		result, err := a.uploadService.CreateBoxFromIncoming(files, opts)
 		if err != nil {
 			return services.UploadResult{}, 0, 0, "", err
 		}
@@ -193,7 +194,7 @@ func (a *App) createOrAppendBox(r *http.Request, user services.User, loggedIn bo
 
 	if entry.boxID != "" && time.Since(entry.at) < uploadGroupWindow {
 		if box, err := a.uploadService.GetBox(entry.boxID); err == nil && a.batchBoxMatches(box, user, loggedIn, r) && a.uploadService.CanDownload(box) == nil {
-			if result, err := a.uploadService.AppendFiles(entry.boxID, files, opts); err == nil {
+			if result, err := a.uploadService.AppendIncomingFiles(entry.boxID, files, opts); err == nil {
 				// Re-attach the manage/delete URLs from the box's creation so every
 				// upload in the batch returns a working deletion URL.
 				result.ManageURL = entry.manageURL
@@ -209,7 +210,7 @@ func (a *App) createOrAppendBox(r *http.Request, user services.User, loggedIn bo
 			return services.UploadResult{}, 0, status, message, nil
 		}
 	}
-	result, err := a.uploadService.CreateBox(files, opts)
+	result, err := a.uploadService.CreateBoxFromIncoming(files, opts)
 	if err != nil {
 		return services.UploadResult{}, 0, 0, "", err
 	}
@@ -229,13 +230,13 @@ func (a *App) batchBoxMatches(box services.Box, user services.User, loggedIn boo
 	return box.OwnerID == "" && box.CreatorIP == uploadClientIP(r)
 }
 
-func (a *App) checkUploadPolicy(r *http.Request, user services.User, loggedIn bool, settings services.UploadPolicySettings, policy services.EffectiveUploadPolicy, files []*multipart.FileHeader, totalBytes int64) (int, string) {
+func (a *App) checkUploadPolicy(r *http.Request, user services.User, loggedIn bool, settings services.UploadPolicySettings, policy services.EffectiveUploadPolicy, files []services.IncomingFile, totalBytes int64) (int, string) {
 	if len(files) == 0 {
 		return 0, ""
 	}
 	sizes := make([]int64, 0, len(files))
 	for _, file := range files {
-		sizes = append(sizes, file.Size)
+		sizes = append(sizes, file.Size())
 	}
 	return a.checkUploadPolicyForSizes(r, user, loggedIn, settings, policy, sizes, totalBytes)
 }
@@ -383,10 +384,10 @@ func uploadRateKey(r *http.Request, user services.User, loggedIn bool) string {
 	return "ip:" + uploadClientIP(r)
 }
 
-func totalUploadBytes(files []*multipart.FileHeader) int64 {
+func totalUploadBytes(files []services.IncomingFile) int64 {
 	var total int64
 	for _, file := range files {
-		total += file.Size
+		total += file.Size()
 	}
 	return total
 }
@@ -409,13 +410,48 @@ func statusForDownloadError(err error) int {
 	return http.StatusForbidden
 }
 
-func uploadFiles(r *http.Request) []*multipart.FileHeader {
+type namedMultipartFile struct {
+	header *multipart.FileHeader
+	name   string
+}
+
+func (f namedMultipartFile) Name() string {
+	if strings.TrimSpace(f.name) != "" {
+		return f.name
+	}
+	return f.header.Filename
+}
+
+func (f namedMultipartFile) Size() int64 {
+	return f.header.Size
+}
+
+func (f namedMultipartFile) ContentType() string {
+	return f.header.Header.Get("Content-Type")
+}
+
+func (f namedMultipartFile) Open() (io.ReadCloser, error) {
+	return f.header.Open()
+}
+
+func uploadIncomingFiles(r *http.Request) []services.IncomingFile {
 	if r.MultipartForm == nil {
 		return nil
 	}
-	files := make([]*multipart.FileHeader, 0)
-	files = append(files, r.MultipartForm.File["file"]...)
-	files = append(files, r.MultipartForm.File["sharex"]...)
+	fileHeaders := r.MultipartForm.File["file"]
+	shareXHeaders := r.MultipartForm.File["sharex"]
+	paths := r.MultipartForm.Value["file_path"]
+	files := make([]services.IncomingFile, 0, len(fileHeaders)+len(shareXHeaders))
+	for index, header := range fileHeaders {
+		name := ""
+		if index < len(paths) {
+			name = paths[index]
+		}
+		files = append(files, namedMultipartFile{header: header, name: name})
+	}
+	for _, header := range shareXHeaders {
+		files = append(files, namedMultipartFile{header: header})
+	}
 	return files
 }
 

backend/libs/handlers/upload_stage3_test.go

@@ -17,6 +17,7 @@ import (
 	"time"
 
 	"warpbox.dev/backend/libs/config"
+	"warpbox.dev/backend/libs/jobs"
 	"warpbox.dev/backend/libs/services"
 	"warpbox.dev/backend/libs/web"
 )
@@ -127,7 +128,7 @@ func TestSocialPreviewBotGetsCardForSingleNonMediaBox(t *testing.T) {
 	if !strings.Contains(body, `class="file-thumb" src="/d/`+payload.BoxID+`/thumb/`+payload.Files[0].ID+`"`) {
 		t.Fatalf("download page did not render text thumbnail image: %s", body)
 	}
-	if !strings.Contains(body, "Click to preview or download") && !strings.Contains(body, "click to preview or download") {
+	if !strings.Contains(body, "Open to preview or download") {
 		t.Fatalf("social preview body missing preview/download description: %s", body)
 	}
 }
@@ -817,6 +818,7 @@ func newTestApp(t *testing.T) (*App, func()) {
 		t.Fatalf("NewBanService returned error: %v", err)
 	}
 	return NewApp(cfg, logger, renderer, service, authService, settingsService, reactionService, banService), func() {
+		jobs.WaitForThumbnailJobs()
 		if err := service.Close(); err != nil {
 			t.Fatalf("Close returned error: %v", err)
 		}

backend/libs/jobs/thumbnails.go

@@ -22,6 +22,7 @@ import (
 	"sort"
 	"strconv"
 	"strings"
+	"sync"
 	"time"
 
 	"golang.org/x/image/font"
@@ -38,8 +39,12 @@ type ThumbnailJobResult struct {
 	Failed    int
 }
 
+var thumbnailJobs sync.WaitGroup
+
 func GenerateThumbnailsForBoxAsync(uploadService *services.UploadService, logger *slog.Logger, boxID string) {
+	thumbnailJobs.Add(1)
 	go func() {
+		defer thumbnailJobs.Done()
 		box, err := uploadService.GetBox(boxID)
 		if err != nil {
 			logger.Warn("thumbnail box lookup failed", "source", "thumbnail", "severity", "warn", "code", 4204, "box_id", boxID, "error", err.Error())
@@ -61,6 +66,10 @@ func GenerateThumbnailsForBoxAsync(uploadService *services.UploadService, logger
 	}()
 }
 
+func WaitForThumbnailJobs() {
+	thumbnailJobs.Wait()
+}
+
 func newThumbnailsJob(cfg config.Config, logger *slog.Logger, uploadService *services.UploadService) job {
 	return job{
 		name:     "thumbnail",

backend/static/js/40-upload.js

@@ -411,7 +411,7 @@
       data: { url: window.Warpbox.absoluteURL(url || "/") },
     };
     try {
-      const registration = await navigator.serviceWorker?.ready;
+      const registration = navigator.serviceWorker ? await navigator.serviceWorker.ready : null;
       if (registration && registration.showNotification) {
         await registration.showNotification(title, options);
         return;
@@ -419,14 +419,18 @@
     } catch (error) {
       /* fall through to page notification */
     }
-    const notification = new Notification(title, options);
-    notification.onclick = () => {
-      window.focus();
-      if (url) {
-        window.location.href = window.Warpbox.absoluteURL(url);
-      }
-      notification.close();
-    };
+    try {
+      const notification = new Notification(title, options);
+      notification.onclick = () => {
+        window.focus();
+        if (url) {
+          window.location.href = window.Warpbox.absoluteURL(url);
+        }
+        notification.close();
+      };
+    } catch (error) {
+      /* notifications are best-effort */
+    }
   }
 
   function notify(variant, message, options) {
@@ -1410,8 +1414,10 @@
   function uploadFormData() {
     const formData = new FormData(form);
     formData.delete("file");
+    formData.delete("file_path");
     selectedFiles.forEach((file) => {
       formData.append("file", file, uploadName(file));
+      formData.append("file_path", uploadName(file));
     });
     return formData;
   }