# Updated Looks, Syntax Highlights and more

* Moved all CDN libraries into /static/vendor
+ Implemented syntax highlight with hljs
* Updated the sanitization to include `.`

lib/routes/routes_home.go

@@ -39,7 +39,7 @@ func HomeRoutes(router *gin.Engine) {
 		if err == nil {
 			postName = newPostName
 		}
-		postName = sanitize.AlphaNumeric(postName, true)
+		postName = sanitize.PathName(sanitize.SingleLine(postName))
 
 		post := objects.GetPost(postName)
 
@@ -63,7 +63,7 @@ func HomeRoutes(router *gin.Engine) {
 		if err == nil {
 			postName = newPostName
 		}
-		postName = sanitize.AlphaNumeric(postName, true)
+		postName = sanitize.PathName(sanitize.SingleLine(postName))
 
 		p := objects.Post{
 			Name:         postName,

static/css/main.css

@@ -1,3 +1,5 @@
+@import url('https://fonts.googleapis.com/css2?family=Roboto+Mono:wght@300&display=swap');
+
 :root {
     --color-border-default: #444c56;
     --color-fg-default: #adbac7;
@@ -39,6 +41,12 @@ main#main-card {
     display: none !important;
 }
 
+#pad-content, #textarea-preview {
+    tab-size: 2;
+
+    font-family: 'Roboto Mono', monospace !important;
+}
+
 #pad-content-area {
     position: relative;
 
@@ -46,6 +54,18 @@ main#main-card {
     flex-flow: column;
 }
 
+.edit-content-text {
+    display: none;
+}
+
+.read-only-content .edit-content-text {
+    display: block !important;
+}
+
+.read-only-content .view-content-text {
+    display: none !important;
+}
+
 #pad-content-toggler {
     position: absolute;
     top: .5rem;

static/js/pad-scripts.js

@@ -3,12 +3,12 @@ function sendMyData(el) {
     const formData = new FormData();
 
     // Check if the writing watch was sending something already
-    if ( !!window.writingWatch ) {
+    if (!!window.writingWatch) {
         // Clear old timeout
         clearTimeout(window.writingWatch);
     }
 
-    if ( el.value.length > maximumPadSize ) {
+    if (el.value.length > maximumPadSize) {
         let err = new Error(`Your Pad is too big! Please keep it limited to ${maximumPadSize} characters!`);
         alert(err);
         throw err;
@@ -17,8 +17,10 @@ function sendMyData(el) {
     el.setAttribute(`readonly`, `1`);
 
     const textareaPreview = document.getElementById(`textarea-preview`)
-    if ( !!textareaPreview ) {
+    if (!!textareaPreview) {
         textareaPreview.textContent = el.value;
+
+        hljs.highlightElement(document.getElementById(`textarea-preview`));
     }
 
     formData.set("content", el.value);
@@ -29,36 +31,36 @@ function sendMyData(el) {
         body: formData,
         method: "post",
     })
-    .then( resp => {
+        .then(resp => {
-        resp.json()
+            resp.json()
-        .then( e => {
+                .then(e => {
-            document.getElementById(`last_modified_`).value = e.pad.last_modified;
+                    document.getElementById(`last_modified_`).value = e.pad.last_modified;
-            updateStatus(`Succesfully Saved`, `text-success`);
+                    updateStatus(`Succesfully Saved`, `text-success`);
+                })
+                .catch(err => {
+                    updateStatus(`Failed to Save`, `text-danger`);
+                    console.error(err);
+                })
         })
-        .catch( err => {
+        .catch(err => {
             updateStatus(`Failed to Save`, `text-danger`);
             console.error(err);
         })
-    })
+        .finally(() => {
-    .catch( err => {
+            el.removeAttribute(`readonly`);
-        updateStatus(`Failed to Save`, `text-danger`);
+        })
-        console.error(err);
-    })
-    .finally( () => {
-        el.removeAttribute(`readonly`);
-    })
 }
 
 function toggleWritingWatch(el) {
 
     // Check if the writing watch was sending something already
-    if ( !!window.writingWatch ) {
+    if (!!window.writingWatch) {
         // Clear old timeout
         clearTimeout(window.writingWatch);
     }
 
     // Set a timeout for the action
-    window.writingWatch = setTimeout( () => {
+    window.writingWatch = setTimeout(() => {
         // Send out the data
         sendMyData(el)
     }, 750)
@@ -79,7 +81,7 @@ function getLocalArchives() {
     let a = localStorage.getItem(`${padTitle}_archives`);
 
     // Check if we had anything in storage for the archives
-    if ( a == null ) {
+    if (a == null) {
         // There were nothing in storage
         return [];
     }
@@ -87,7 +89,7 @@ function getLocalArchives() {
     try {
         // Try and parse the json
         a = JSON.parse(a);
-    } catch ( err ) {
+    } catch (err) {
         // Return null of the fail
         return [];
     }
@@ -98,7 +100,7 @@ function getLocalArchives() {
 function storeArchives(archives) {
 
     // Check if the provided list is an array
-    if ( !Array.isArray(archives) ) return;
+    if (!Array.isArray(archives)) return;
 
     // Set the current archives
     localStorage.setItem(`${padTitle}_archives`, JSON.stringify(archives));
@@ -110,13 +112,13 @@ function renderArchivesSelection() {
     const archivesSelection = document.getElementById(`archives-selection`);
     const rowTemplate = document.getElementById(`archive-selection-example`);
     // Clear any old optiosn
-    archivesSelection.querySelectorAll(`.dropdown-item:not(#do-archive-button):not(#archive-selection-example)`).forEach( el => {
+    archivesSelection.querySelectorAll(`.dropdown-item:not(#do-archive-button):not(#archive-selection-example)`).forEach(el => {
         // Remove the element
         el.remove();
     })
 
     // Get the current list of available archives
-    for ( let a of getLocalArchives() ) {
+    for (let a of getLocalArchives()) {
         // Clone the template row
         const row = rowTemplate.cloneNode(true);
 
@@ -135,7 +137,7 @@ function renderArchivesSelection() {
 
             let resp = confirm("Load contents of pad from memory? This will overwrite the current pad for everyone.");
 
-            if ( !!resp ) {
+            if (!!resp) {
                 document.getElementById(`pad-content`).value = a.content;
             }
         })
@@ -147,7 +149,7 @@ function renderArchivesSelection() {
 function saveLocalArchive() {
     let resp = confirm("Save a local copy of the current Pad?");
 
-    if ( !resp ) {
+    if (!resp) {
         // Do not
         return;
     }
@@ -178,7 +180,7 @@ function generateQRCode() {
     // Add new qr
     new QRCode(qrcodeContainer, {
         text: window.location.toString(),
-        width:  256,
+        width: 256,
         height: 256,
         colorDark: "#555273",
         colorLight: "#ffffff",
@@ -190,26 +192,23 @@ function generateQRCode() {
 }
 
 function toggleTextareaPreview() {
-    setTextareaPreview( !document.getElementById(`pad-content-toggler`).classList.contains(`read-only`) )
+    setTextareaPreview(!document.getElementById(`pad-content-toggler`).classList.contains(`read-only`))
 }
 
 // t == true - Read Only
 // t == false - Edit mode
-function setTextareaPreview( t = true ) {
+function setTextareaPreview(t = true) {
-    const prev     = document.getElementById(`textarea-preview`)
+    const prev = document.getElementById(`textarea-preview`)
     const textarea = document.getElementById(`pad-content`);
-    const toggler  = document.getElementById(`pad-content-toggler`);
+    const toggler = document.getElementById(`pad-content-toggler`);
+    const padContentArea = document.getElementById(`pad-content-area`);
 
-    const togglerEdit = toggler.querySelector(`.edit-content-text`);
+    if (t) {
-    const togglerView = toggler.querySelector(`.view-content-text`);
-
-    if ( t ) {
         // Toggle read only
         prev.classList.remove(`hidden`)
         toggler.classList.add(`read-only`);
 
-        togglerEdit.classList.remove(`hidden`);
+        padContentArea.classList.add(`read-only-content`);
-        togglerView.classList.add(`hidden`);
 
         textarea.classList.add(`hidden`);
     } else {
@@ -217,8 +216,7 @@ function setTextareaPreview( t = true ) {
         prev.classList.add(`hidden`)
         toggler.classList.remove(`read-only`);
 
-        togglerEdit.classList.add(`hidden`);
+        padContentArea.classList.remove(`read-only-content`);
-        togglerView.classList.remove(`hidden`);
 
 
         textarea.classList.remove(`hidden`);
@@ -236,7 +234,30 @@ document.addEventListener(`DOMContentLoaded`, e => {
 
     { // Textarea Handling
         const textarea = document.getElementById(`pad-content`);
-        setTextareaPreview( !!textarea.value );
+        setTextareaPreview(!!textarea.value);
+
+        // Make sure tabs are taken into consideration
+        textarea.addEventListener('keydown', function (e) {
+            if (e.key == 'Tab') {
+                e.preventDefault();
+                const start = this.selectionStart;
+                const end = this.selectionEnd;
+
+                // set textarea value to: text before caret + tab + text after caret
+                this.value = this.value.substring(0, start) +
+                    "\t" + this.value.substring(end);
+
+                // put caret at right position again
+                this.selectionStart =
+                    this.selectionEnd = start + 1;
+            }
+        });
+    }
+
+    try { // highlights
+        hljs.highlightElement(document.getElementById(`textarea-preview`));
+    } catch ( err ) {
+        console.err(err);
     }
 
     { // Archives

static/vendor/bootstrap/darkmode.min.js

@@ -0,0 +1,6 @@
+/*!
+ * Bootstrap-Dark-5 v1.1.3 (https://vinorodrigues.github.io/bootstrap-dark-5/)
+ * Copyright 2021 Vino Rodrigues
+ * Licensed under MIT (https://github.com/vinorodrigues/bootstrap-dark-5/blob/main/LICENSE.md)
+ */
+"use strict";class DarkMode{constructor(){this._hasGDPRConsent=!1,this.cookieExpiry=365,"loading"===document.readyState?document.addEventListener("DOMContentLoaded",(function(){DarkMode.onDOMContentLoaded()})):DarkMode.onDOMContentLoaded()}get inDarkMode(){return DarkMode.getColorScheme()==DarkMode.VALUE_DARK}set inDarkMode(e){this.setDarkMode(e,!1)}get hasGDPRConsent(){return this._hasGDPRConsent}set hasGDPRConsent(e){if(this._hasGDPRConsent=e,e){const e=DarkMode.readCookie(DarkMode.DATA_KEY);e&&(DarkMode.saveCookie(DarkMode.DATA_KEY,"",-1),localStorage.setItem(DarkMode.DATA_KEY,e))}else{const e=localStorage.getItem(DarkMode.DATA_KEY);e&&(localStorage.removeItem(DarkMode.DATA_KEY),DarkMode.saveCookie(DarkMode.DATA_KEY,e))}}get documentRoot(){return document.getElementsByTagName("html")[0]}static saveCookie(e,o="",t=365){let a="";if(t){const e=new Date;e.setTime(e.getTime()+24*t*60*60*1e3),a="; expires="+e.toUTCString()}document.cookie=e+"="+o+a+"; SameSite=Strict; path=/"}saveValue(e,o,t=this.cookieExpiry){this.hasGDPRConsent?DarkMode.saveCookie(e,o,t):localStorage.setItem(e,o)}static readCookie(e){const o=e+"=",t=document.cookie.split(";");for(let e=0;e<t.length;e++){const a=t[e].trim();if(a.startsWith(o))return a.substring(o.length)}return""}readValue(e){if(this.hasGDPRConsent)return DarkMode.readCookie(e);{const o=localStorage.getItem(e);return o||""}}eraseValue(e){this.hasGDPRConsent?this.saveValue(e,"",-1):localStorage.removeItem(e)}getSavedColorScheme(){const e=this.readValue(DarkMode.DATA_KEY);return e||""}getPreferedColorScheme(){return window.matchMedia&&window.matchMedia("(prefers-color-scheme: dark)").matches?DarkMode.VALUE_DARK:window.matchMedia&&window.matchMedia("(prefers-color-scheme: light)").matches?DarkMode.VALUE_LIGHT:""}setDarkMode(e,o=!0){const t=document.querySelectorAll("[data-"+DarkMode.DATA_SELECTOR+"]");if(0==t.length)e?(this.documentRoot.classList.remove(DarkMode.CLASS_NAME_LIGHT),this.documentRoot.classList.add(DarkMode.CLASS_NAME_DARK)):(this.documentRoot.classList.remove(DarkMode.CLASS_NAME_DARK),this.documentRoot.classList.add(DarkMode.CLASS_NAME_LIGHT));else for(let o=0;o<t.length;o++)t[o].setAttribute("data-"+DarkMode.DATA_SELECTOR,e?DarkMode.VALUE_DARK:DarkMode.VALUE_LIGHT);o&&this.saveValue(DarkMode.DATA_KEY,e?DarkMode.VALUE_DARK:DarkMode.VALUE_LIGHT)}toggleDarkMode(e=!0){let o;const t=document.querySelector("[data-"+DarkMode.DATA_SELECTOR+"]");o=t?t.getAttribute("data-"+DarkMode.DATA_SELECTOR)==DarkMode.VALUE_DARK:this.documentRoot.classList.contains(DarkMode.CLASS_NAME_DARK),this.setDarkMode(!o,e)}resetDarkMode(){this.eraseValue(DarkMode.DATA_KEY);const e=this.getPreferedColorScheme();if(e)this.setDarkMode(e==DarkMode.VALUE_DARK,!1);else{const e=document.querySelectorAll("[data-"+DarkMode.DATA_SELECTOR+"]");if(0==e.length)this.documentRoot.classList.remove(DarkMode.CLASS_NAME_LIGHT),this.documentRoot.classList.remove(DarkMode.CLASS_NAME_DARK);else for(let o=0;o<e.length;o++)e[o].setAttribute("data-"+DarkMode.DATA_SELECTOR,"")}}static getColorScheme(){const e=document.querySelector("[data-"+DarkMode.DATA_SELECTOR+"]");if(e){const o=e.getAttribute("data-"+DarkMode.DATA_SELECTOR);return o==DarkMode.VALUE_DARK||o==DarkMode.VALUE_LIGHT?o:""}return darkmode.documentRoot.classList.contains(DarkMode.CLASS_NAME_DARK)?DarkMode.VALUE_DARK:darkmode.documentRoot.classList.contains(DarkMode.CLASS_NAME_LIGHT)?DarkMode.VALUE_LIGHT:""}static updatePreferedColorSchemeEvent(){let e=darkmode.getSavedColorScheme();e||(e=darkmode.getPreferedColorScheme(),e&&darkmode.setDarkMode(e==DarkMode.VALUE_DARK,!1))}static onDOMContentLoaded(){let e=darkmode.readValue(DarkMode.DATA_KEY);e||(e=DarkMode.getColorScheme(),e||(e=darkmode.getPreferedColorScheme()));const o=e==DarkMode.VALUE_DARK;darkmode.setDarkMode(o,!1),window.matchMedia&&window.matchMedia("(prefers-color-scheme: dark)").addEventListener("change",(function(){DarkMode.updatePreferedColorSchemeEvent()}))}}DarkMode.DATA_KEY="bs.prefers-color-scheme",DarkMode.DATA_SELECTOR="bs-color-scheme",DarkMode.VALUE_LIGHT="light",DarkMode.VALUE_DARK="dark",DarkMode.CLASS_NAME_LIGHT="light",DarkMode.CLASS_NAME_DARK="dark";const darkmode=new DarkMode;

static/vendor/hljs/theme.css

@@ -0,0 +1,98 @@
+/*!
+  Theme: a11y-dark
+  Author: @ericwbailey
+  Maintainer: @ericwbailey
+
+  Based on the Tomorrow Night Eighties theme: https://github.com/isagalaev/highlight.js/blob/master/src/styles/tomorrow-night-eighties.css
+*/
+
+.hljs {
+  background: #2b2b2b;
+  color: #f8f8f2;
+}
+
+/* Comment */
+.hljs-comment,
+.hljs-quote {
+  color: #d4d0ab;
+}
+
+/* Red */
+.hljs-variable,
+.hljs-template-variable,
+.hljs-tag,
+.hljs-name,
+.hljs-selector-id,
+.hljs-selector-class,
+.hljs-regexp,
+.hljs-deletion {
+  color: #ffa07a;
+}
+
+/* Orange */
+.hljs-number,
+.hljs-built_in,
+.hljs-literal,
+.hljs-type,
+.hljs-params,
+.hljs-meta,
+.hljs-link {
+  color: #f5ab35;
+}
+
+/* Yellow */
+.hljs-attribute {
+  color: #ffd700;
+}
+
+/* Green */
+.hljs-string,
+.hljs-symbol,
+.hljs-bullet,
+.hljs-addition {
+  color: #abe338;
+}
+
+/* Blue */
+.hljs-title,
+.hljs-section {
+  color: #00e0e0;
+}
+
+/* Purple */
+.hljs-keyword,
+.hljs-selector-tag {
+  color: #dcc6e0;
+}
+
+.hljs-emphasis {
+  font-style: italic;
+}
+
+.hljs-strong {
+  font-weight: bold;
+}
+
+@media screen and (-ms-high-contrast: active) {
+  .hljs-addition,
+  .hljs-attribute,
+  .hljs-built_in,
+  .hljs-bullet,
+  .hljs-comment,
+  .hljs-link,
+  .hljs-literal,
+  .hljs-meta,
+  .hljs-number,
+  .hljs-params,
+  .hljs-string,
+  .hljs-symbol,
+  .hljs-type,
+  .hljs-quote {
+        color: highlight;
+    }
+
+    .hljs-keyword,
+    .hljs-selector-tag {
+        font-weight: bold;
+    }
+}

templates/inc/footer.html

@@ -1,4 +1,4 @@
 {{ define "inc/footer.html"}}
-    <script src="https://cdn.jsdelivr.net/npm/bootstrap-dark-5@1.1.3/dist/js/darkmode.min.js"></script>
+    <script src="/static/vendor/bootstrap/darkmode.min.js"></script>
     <script src="/static/js/main.js"></script>
 {{ end }}

templates/inc/header.html

@@ -14,7 +14,7 @@
 
     <meta name="color-scheme" content="light dark">
 
-    <link href="https://cdn.jsdelivr.net/npm/bootstrap-dark-5@1.1.3/dist/css/bootstrap-nightshade.min.css" rel="stylesheet">
+    <link href="/static/vendor/bootstrap/bootstrap-nightshade.min.css" rel="stylesheet">
     <!-- Love https://vinorodrigues.github.io/bootstrap-dark-5/ -->
     <link rel="stylesheet" href="/static/css/main.css">
 </head>

templates/pages/page.html

@@ -21,6 +21,8 @@
     var padTitle = {{.title }};
 </script>
 
+<link rel="stylesheet" href="/static/vendor/hljs/theme.css">
+
 <body>
 
     <main id="main-card" class="container rounded mt-5 shadow-sm">
@@ -42,14 +44,14 @@
                         <path d="M12.146.146a.5.5 0 0 1 .708 0l3 3a.5.5 0 0 1 0 .708l-10 10a.5.5 0 0 1-.168.11l-5 2a.5.5 0 0 1-.65-.65l2-5a.5.5 0 0 1 .11-.168l10-10zM11.207 2.5 13.5 4.793 14.793 3.5 12.5 1.207 11.207 2.5zm1.586 3L10.5 3.207 4 9.707V10h.5a.5.5 0 0 1 .5.5v.5h.5a.5.5 0 0 1 .5.5v.5h.293l6.5-6.5zm-9.761 5.175-.106.106-1.528 3.821 3.821-1.528.106-.106A.5.5 0 0 1 5 12.5V12h-.5a.5.5 0 0 1-.5-.5V11h-.5a.5.5 0 0 1-.468-.325z"/>
                     </svg>
                 </span>
-                <span class="view-content-text hidden" title="ReadOnly">
+                <span class="view-content-text" title="ReadOnly">
                     <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-eyeglasses" viewBox="0 0 16 16">
                         <path d="M4 6a2 2 0 1 1 0 4 2 2 0 0 1 0-4zm2.625.547a3 3 0 0 0-5.584.953H.5a.5.5 0 0 0 0 1h.541A3 3 0 0 0 7 8a1 1 0 0 1 2 0 3 3 0 0 0 5.959.5h.541a.5.5 0 0 0 0-1h-.541a3 3 0 0 0-5.584-.953A1.993 1.993 0 0 0 8 6c-.532 0-1.016.208-1.375.547zM14 8a2 2 0 1 1-4 0 2 2 0 0 1 4 0z"/>
                     </svg>
                 </span>
             </div>
 
-            <pre id="textarea-preview" class="form-control hidden">{{.post_content}}</pre>
+            <pre><code id="textarea-preview" class="form-control hidden">{{.post_content}}</code></pre>
 
             <textarea maxlength="{{.maximumPadSize}}" name="pad-content" id="pad-content" onchange="sendMyData(this)"
                 onkeydown="updateStatus(`Not Saved`, `text-warning`); toggleWritingWatch(this)"
@@ -210,10 +212,11 @@
 <script src="/static/js/fileSaver.js"></script>
 <script src="/static/js/pad.js"></script>
 <script src="/static/js/pad-scripts.js"></script>
+<script src="/static/vendor/hljs/highlight.min.js"></script>
 
-<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/js/bootstrap.bundle.min.js" integrity="sha384-MrcW6ZMFYlzcLA8Nl+NtUVF0sA7MsXsP1UyJoMp4YLEuNSfAP+JcXn/tWtIaxVXM" crossorigin="anonymous"></script>
+<script src="/static/vendor/bootstrap/bootstrap.bundle.min.js"></script>
-<script src="https://cdn.rawgit.com/davidshimjs/qrcodejs/gh-pages/qrcode.min.js"></script>
+<script src="/static/vendor/qrcodejs/qrcode.min.js"></script>
-<script src="https://unpkg.com/micromodal/dist/micromodal.min.js"></script>
+<script src="/static/vendor/micromodal/micromodal.min.js"></script>
 
 <script>
     window.pad = new Pad({{.title }}, {{.last_modified }});