Improve plugins system

customize.dist/messages.js

@@ -45,6 +45,7 @@ var getLanguage = Messages._getLanguage = function () {
                 (map[l.split('_')[0]] ? l.split('_')[0] : 'en'));
 };
 var language = getLanguage();
+window.cryptpadLanguage = language;
 
 // Translations files were migrated from requirejs modules to json.
 // To avoid asking every administrator to update their customized translation files,

lib/http-worker.js

@@ -630,6 +630,35 @@ var serveBroadcast = makeRouteCache(function () {
 app.get('/api/config', serveConfig);
 app.get('/api/broadcast', serveBroadcast);
 
+(function () {
+let extensions = plugins._extensions;
+let styles = plugins._styles;
+let str = JSON.stringify(extensions);
+let str2 = JSON.stringify(styles);
+let js = `let extensions = ${str};
+let styles = ${str2};
+let lang = window.cryptpadLanguage;
+let paths = [];
+extensions.forEach(name => {
+    paths.push(\`optional!/\${name}/extensions.js\`);
+    paths.push(\`optional!json!/\${name}/translations/messages.json\`);
+    paths.push(\`optional!json!/\${name}/translations/messages.\${lang}.json\`);
+});
+styles.forEach(name => {
+    paths.push(\`optional!less!/\${name}/style.less\`);
+});
+define(paths, function () {
+    let args = Array.prototype.slice.apply(arguments);
+    return args;
+}, function () {
+    // ignore missing files
+});`
+app.get('/extensions.js', (req, res) => {
+    res.setHeader('Content-Type', 'text/javascript');
+    res.send(js);
+});
+})();
+
 var Define = function (obj) {
     return `define(function (){
     return ${JSON.stringify(obj, null, '\t')};
@@ -723,7 +752,7 @@ app.post('/api/auth', function (req, res, next) {
 });
 
 app.use(function (req, res /*, next */) {
-    if (/^(\/favicon\.ico\/|.*\.js\.map)$/.test(req.url)) {
+    if (/^(\/favicon\.ico\/|.*\.js\.map|.*\/translations\/.*\.json)$/.test(req.url)) {
         // ignore common 404s
     } else {
         Log.info('HTTP_404', req.url);

lib/plugin-manager.js

@@ -4,6 +4,8 @@
 
 const fs = require('node:fs');
 const plugins = {};
+const extensions = plugins._extensions = [];
+const styles = plugins._styles = [];
 
 try {
     let pluginsDir = fs.readdirSync(__dirname + '/plugins');
@@ -12,6 +14,18 @@ try {
         try {
             let plugin = require(`./plugins/${name}/index`);
             plugins[plugin.name] = plugin.modules;
+            try {
+                let hasExt = fs.existsSync(`lib/plugins/${name}/client/extensions.js`);
+                if (hasExt) {
+                    extensions.push(plugin.name.toLowerCase());
+                }
+            } catch (e) {}
+            try {
+                let hasStyle = fs.existsSync(`lib/plugins/${name}/client/style.less`);
+                if (hasStyle) {
+                    styles.push(plugin.name.toLowerCase());
+                }
+            } catch (e) {}
         } catch (err) {
             console.error(err);
         }

www/common/extensions.js

@@ -0,0 +1,30 @@
+define([
+    '/extensions.js'
+], (Extensions) => {
+    console.error(Extensions);
+    const ext = {};
+    if (!Array.isArray(Extensions) || !Extensions.length) { return ext; }
+
+    let all = Extensions.slice();
+    while(all.length) {
+        let current = all.splice(0, 3);
+        console.error(current);
+        let f = current[0];
+        if (typeof(f) !== "function") {
+            continue;
+        }
+        let defaultLang = current[1];
+        let lang = current[2];
+        if (!Object.keys(lang).length && Object.keys(defaultLang).length) {
+            lang = defaultLang;
+        }
+        let currentExt = f(lang) || {};
+
+        Object.keys(currentExt).forEach(key => {
+            ext[key] = ext[key] || [];
+            Array.prototype.push.apply(ext[key], currentExt[key]); // concat in place
+        });
+    }
+
+    return ext;
+});

www/common/sframe-common.js

@@ -34,6 +34,7 @@ define([
     '/common/common-constants.js',
     '/components/localforage/dist/localforage.min.js',
     '/common/hyperscript.js',
+    '/common/extensions.js'
 ], function (
     $,
     ApiConfig,
@@ -64,7 +65,8 @@ define([
     Language,
     Constants,
     localForage,
-    h
+    h,
+    Ext
 ) {
     // Chainpad Netflux Inner
     var funcs = {};

www/lib/optional/optional.js

@@ -13,7 +13,7 @@ define("optional", [], {
         var onLoadFailure = function(err){
             // optional module failed to load.
             var failedId = err.requireModules && err.requireModules[0];
-            console.warn("Could not load optional module: " + failedId);
+            //console.warn("Could not load optional module: " + failedId);
 
             // Undefine the module to cleanup internal stuff in requireJS
             requirejs.undef(failedId);