GUAC-1053 New endpoint for listing languages, JS service for retrieving languages, and settings section for choosing language.

guacamole/src/main/webapp/app/rest/services/cacheService.js

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2014 Glyptodon LLC
+ * Copyright (C) 2015 Glyptodon LLC
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -41,6 +41,13 @@ angular.module('rest').factory('cacheService', ['$injector',
      */
     service.connections = $cacheFactory('API-CONNECTIONS');
 
+    /**
+     * Cache used by languageService.
+     *
+     * @type $cacheFactory.Cache
+     */
+    service.languages = $cacheFactory('API-LANGUAGES');
+
     /**
      * Cache used by protocolService.
      *
@@ -59,8 +66,9 @@ angular.module('rest').factory('cacheService', ['$injector',
      * Clear all caches defined in this service.
      */
     service.clearCaches = function clearCaches() {
-        service.protocols.removeAll();
         service.connections.removeAll();
+        service.languages.removeAll();
+        service.protocols.removeAll();
         service.users.removeAll();
     };
 

guacamole/src/main/webapp/app/rest/services/languageService.js

@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2015 Glyptodon LLC
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+/**
+ * Service for operating on language metadata via the REST API.
+ */
+angular.module('rest').factory('languageService', ['$injector',
+        function languageService($injector) {
+
+    // Required services
+    var $http                 = $injector.get('$http');
+    var authenticationService = $injector.get('authenticationService');
+    var cacheService          = $injector.get('cacheService');
+
+    var service = {};
+    
+    /**
+     * Makes a request to the REST API to get the list of languages, returning
+     * a promise that provides a map of language names by language key if 
+     * successful.
+     *                          
+     * @returns {Promise.<Object.<String, String>>}
+     *     A promise which will resolve with a map of language names by
+     *     language key upon success.
+     */
+    service.getLanguages = function getLanguages() {
+
+        // Build HTTP parameters set
+        var httpParameters = {
+            token : authenticationService.getCurrentToken()
+        };
+
+        // Retrieve available protocols
+        return $http({
+            cache   : cacheService.languages,
+            method  : 'GET',
+            url     : 'api/languages',
+            params  : httpParameters
+        });
+
+    };
+    
+    return service;
+
+}]);