Display an alert when CryptPad has a new version

customize.dist/translations/messages.fr.js

@@ -54,6 +54,10 @@ define(function () {
 
     out.comingSoon = "Bientôt disponible...";
 
+    out.newVersion = '<b>CryptPad a été mis à jour !</b><br>' +
+                     'Découvrez les nouveautés de la dernière version :<br>'+
+                     '<a href="https://github.com/xwiki-labs/cryptpad/releases/tag/{0}" target="_blank">Notes de version pour CryptPad {0}</a>';
+
     out.upgrade = "Améliorer";
     out.upgradeTitle = "Améliorer votre compte pour augmenter la limite de stockage";
     out.MB = "Mo";

customize.dist/translations/messages.js

@@ -56,6 +56,10 @@ define(function () {
 
     out.comingSoon = "Coming soon...";
 
+    out.newVersion = '<b>CryptPad has been updated!</b><br>' +
+                     'Check out what\'s new in the latest version:<br>'+
+                     '<a href="https://github.com/xwiki-labs/cryptpad/releases/tag/{0}" target="_blank">Release notes for CryptPad {0}</a>';
+
     out.upgrade = "Upgrade";
     out.upgradeTitle = "Upgrade your account to increase the storage limit";
     out.MB = "MB";

www/common/cryptpad-common.js

@@ -23,7 +23,6 @@ define([
 
     Additionally, there is some basic functionality for import/export.
 */
-
     var common = window.Cryptpad = {
         Messages: Messages,
         Clipboard: Clipboard
@@ -1296,6 +1295,25 @@ define([
         return $userAdmin;
     };
 
+    var CRYPTPAD_VERSION = 'cryptpad-version';
+    var updateLocalVersion = function () {
+        // Check for CryptPad updates
+        var urlArgs = Config.requireConf ? Config.requireConf.urlArgs : null;
+        if (!urlArgs) { return; }
+        var arr = /ver=([0-9.]+)(-[0-9]*)?/.exec(urlArgs);
+        var ver = arr[1];
+        if (!ver) { return; }
+        var verArr = ver.split('.');
+        if (verArr.length !== 3) { return; }
+        var stored = localStorage[CRYPTPAD_VERSION] || '0.0.0';
+        var storedArr = stored.split('.');
+        var shouldUpdate = parseInt(verArr[0]) > parseInt(storedArr[0]) ||
+                           (parseInt(verArr[0]) === parseInt(storedArr[0]) &&
+                            parseInt(verArr[1]) > parseInt(storedArr[1]));
+        if (!shouldUpdate) { return; }
+        Cryptpad.alert(Messages._getKey('newVersion', [ver]), null, true);
+        localStorage[CRYPTPAD_VERSION] = ver;
+    };
 
     common.ready = (function () {
         var env = {};
@@ -1313,6 +1331,9 @@ define([
             block--;
             if (!block) {
                 initialized = true;
+
+                updateLocalVersion();
+
                 f(void 0, env);
             }
         };