Fixes #1738. Allow webpack's `publicPath` to be specified at runtime

CHANGES.md

@@ -2,13 +2,14 @@
 
 ## 5.0.4
 
-- Add config option [allow_message_corrections](https://conversejs.org/docs/html/configuration.html#allow_message_corrections)
-  which, if set to `last`, limits editing of sent messages to the last message sent
-- Bugfix: Don't treat every duplicate message ID as a message correction; since some
-  clients don't use globally unique ID's this causes false positives.
+- New config option [allow_message_corrections](https://conversejs.org/docs/html/configuration.html#allow_message_corrections)
+  which, if set to `last`, limits editing of sent messages to the last message sent.
+- Bugfix: Don't treat every duplicate message ID as a message correction; since some clients don't use globally unique ID's this causes false positives.
 - Bugfix: process stanzas from mam one-by-one in order to correctly process message receipts
 - #1712: `TypeError: plugin._features is not a function`
-- #1714 Don't notify the user in case we're receiving a message delivery receipt only
+- #1714: Don't notify the user in case we're receiving a message delivery receipt only
+- #1739: New config option [assets_path](https://conversejs.org/docs/html/configuration.html#assets_path)
+  which lets you set the path from which "chunks" are loaded.
 
 ## 5.0.3 (2019-09-13)
 
@@ -29,8 +30,8 @@
 - Use `listenTo` to avoid memory leaks when views get removed.
 - SECURITY FIX: Ignore MAM `chat` messages not sent from yourself
 - #1692 Bugfix: `TypeError: oldest_message is undefined`
-- #1704 SECURITY FIX: Impersonation by misusage of groupchat carbons
-- #1705 Bugfix: `this.roomspanel` is `undefined` after hibernating
+- #1704: SECURITY FIX: Impersonation by misusage of groupchat carbons
+- #1705: Bugfix: `this.roomspanel` is `undefined` after hibernating
 
 ## 5.0.1 (2019-08-14)
 

docs/source/configuration.rst

@@ -1222,6 +1222,21 @@ providers_link
 The hyperlink on the registration form which points to a directory of public
 XMPP servers.
 
+assets_path
+-----------
+
+* Default: The `publicPath <https://webpack.js.org/guides/public-path/>`_ value configured in the relevant Webpack configuration.
+
+Since version 5.0.0, Converse serves a smaller bundle by extracting various
+resources (for example emojis and translations) into separate files (aka
+"chunks") which are loaded asynchronously on demand.
+
+The URL path at which these resources are loaded is normally set by the ``publicPath``
+setting of Webpack but this means that it's hardcoded to a particular value at
+compile time.
+
+This configuration seting allows this value to be set at runtime as well.
+
 push_app_servers
 ----------------
 

src/converse.js

@@ -1,3 +1,10 @@
+// Converse.js (A browser based XMPP chat client)
+// https://conversejs.org
+//
+// Copyright (c) 2019, The Converse developers
+// Licensed under the Mozilla Public License (MPLv2)
+//
+
 /* START: Removable components
  * --------------------
  * Any of the following components may be removed if they're not needed.

src/entry.js

@@ -0,0 +1,67 @@
+// Converse.js
+// https://conversejs.org
+//
+// Copyright (c) 2013-2019, the Converse.js developers
+// Licensed under the Mozilla Public License (MPLv2)
+//
+// Webpack entry file
+//
+// The purpose of this file is to provide an initial temporary public API
+// (window.converse) for **before** the rest of converse.js is loaded so
+// that we can set the __webpack_public_path__ global variable.
+//
+// Once the rest converse.js has been loaded, window.converse will be replaced
+// with the full-fledged public API.
+
+const plugins = {};
+
+const converse = {
+    plugins: {
+        add (name, plugin) {
+            if (plugins[name] !== undefined) {
+                throw new TypeError(
+                    `Error: plugin with name "${name}" has already been ` + 'registered!'
+                );
+            }
+            plugins[name] = plugin;
+        }
+    },
+
+    initialize (settings={}) {
+        converse.load(settings).initialize(settings);
+    },
+
+    /**
+     * Public API method which explicitly loads Converse and allows you the
+     * possibility to pass in configuration settings which need to be defined
+     * before loading. Currently this is only the [assets_path](https://conversejs.org/docs/html/configuration.html#assets_path)
+     * setting.
+     *
+     * If not called explicitly, this method will be called implicitly once
+     * {@link converse.initialize} is called.
+     *
+     * In most cases, you probably don't need to explicitly call this method,
+     * however, until converse.js has been loaded you won't have access to the
+     * utility methods and globals exposed via {@link converse.env}. So if you
+     * need to access `converse.env` outside of any plugins and before
+     * `converse.initialize` has been called, then you need to call
+     * `converse.load` first.
+     *
+     * @memberOf converse
+     * @method load
+     * @param {object} settings A map of configuration-settings that are needed at load time.
+     * @example
+     * converse.load({assets_path: '/path/to/assets/'});
+     */
+    load (settings={}) {
+        if (settings.assets_path) {
+            __webpack_public_path__ = settings.assets_path; // eslint-disable-line no-undef
+        }
+        require('./converse.js');
+        Object.keys(plugins).forEach(name => converse.plugins.add(name, plugins[name]));
+        return converse;
+    }
+}
+
+window.converse = converse;
+export default converse;

src/headless/converse-core.js

@@ -1904,7 +1904,7 @@ _converse.api = {
  * @global
  * @namespace converse
  */
-const converse = {
+Object.assign(window.converse, {
     /**
      * Public API method which initializes Converse.
      * This method must always be called when using Converse.
@@ -1997,9 +1997,7 @@ const converse = {
         'sizzle': sizzle,
         'utils': u
     }
-};
-
-window.converse = converse;
+});
 
 /**
  * Once Converse.js has loaded, it'll dispatch a custom event with the name `converse-loaded`.

tests/mock.js

@@ -1,6 +1,9 @@
 (function (root, factory) {
     define("mock", [], factory);
 }(this, function () {
+
+    converse.load();
+
     const _ = converse.env._;
     const Promise = converse.env.Promise;
     const Strophe = converse.env.Strophe;
@@ -178,7 +181,7 @@
         };
     }();
 
-    async function initConverse (settings, spies, promises) {
+    async function initConverse (settings, spies={}, promises) {
         window.localStorage.clear();
         window.sessionStorage.clear();
         const el = document.querySelector('#conversejs');
@@ -187,8 +190,8 @@
         }
 
         const connection = mock.mock_connection();
-        if (!_.isNil(spies)) {
-            _.forEach(spies.connection, method => spyOn(connection, method));
+        if (spies && spies.connection) {
+            spies.connection.forEach(method => spyOn(connection, method));
         }
 
         const _converse = await converse.initialize(Object.assign({
@@ -204,8 +207,8 @@
             'debug': false
         }, settings || {}));
 
-        if (!_.isNil(spies)) {
-            _.forEach(spies._converse, method => spyOn(_converse, method).and.callThrough());
+        if (spies && spies._converse) {
+            spies._converse.forEach(method => spyOn(_converse, method).and.callThrough());
         }
 
         _converse.ChatBoxViews.prototype.trimChat = function () {};
@@ -240,7 +243,7 @@
                     'vcard_error': undefined
                 };
                 resolve(result);
-            }).catch(_.partial(_converse.log, _, Strophe.LogLevel.FATAL));
+            }).catch(e => _converse.log(e, Strophe.LogLevel.FATAL));
         };
         if (_.get(settings, 'auto_login') !== false) {
             _converse.api.user.login('romeo@montague.lit/orchard', 'secret');
@@ -250,7 +253,7 @@
         return _converse;
     }
 
-    mock.initConverse = function (spies, promise_names=[], settings=null, func) {
+    mock.initConverse = function (spies={}, promise_names=[], settings=null, func) {
         if (_.isFunction(spies)) {
             func = spies;
             spies = null;

webpack.common.js

@@ -7,7 +7,7 @@ module.exports = {
         path: path.resolve(__dirname, 'dist'), // Output path for generated bundles
         chunkFilename: '[name].js'
     },
-    entry: path.resolve(__dirname, 'src/converse.js'),
+    entry: path.resolve(__dirname, 'src/entry.js'),
     externals: [{
         "window": "window"
     }],

webpack.html

@@ -17,21 +17,21 @@
         }
     });
     converse.initialize({
+        auto_away: 300,
+        auto_login: true,
         auto_register_muc_nickname: true,
+        bosh_service_url: 'http://chat.example.org:5380/http-bind/',
+        debug: true,
         enable_smacks: true,
-        auto_away: 300,
         i18n: 'en',
-        view_mode: 'fullscreen',
+        jid: 'klaus.dresner@chat.example.org',
+        message_archiving: 'always',
+        muc_domain: 'conference.chat.example.org',
         muc_respect_autojoin: true,
-        bosh_service_url: 'http://chat.example.org:5380/http-bind/',
+        password: 'secret',
+        view_mode: 'fullscreen',
         websocket_url: 'ws://chat.example.org:5380/xmpp-websocket',
         whitelisted_plugins: ['converse-debug'],
-        muc_domain: 'conference.chat.example.org',
-        message_archiving: 'always',
-        debug: true,
-        jid: 'klaus.dresner@chat.example.org',
-        password: 'secret',
-        auto_login: true
     });
 </script>
 </html>