1 /* 2 Script: Deluge.Client.js 3 A JSON-RPC proxy built on top of ext-core. 4 5 Copyright: 6 (C) Damien Churchill 2009 <damoxc@gmail.com> 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3, or (at your option) 10 any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program. If not, write to: 19 The Free Software Foundation, Inc., 20 51 Franklin Street, Fifth Floor 21 Boston, MA 02110-1301, USA. 22 23 In addition, as a special exception, the copyright holders give 24 permission to link the code of portions of this program with the OpenSSL 25 library. 26 You must obey the GNU General Public License in all respects for all of 27 the code used other than OpenSSL. If you modify file(s) with this 28 exception, you may extend this exception to your version of the file(s), 29 but you are not obligated to do so. If you do not wish to do so, delete 30 this exception statement from your version. If you delete this exception 31 statement from all source files in the program, then also delete it here. 32 33 */ 34 35 Ext.namespace('Ext.ux.util'); 36 (function() { 37 Ext.ux.util.RpcClient = Ext.extend(Ext.util.Observable, { 38 39 _components: [], 40 41 _methods: [], 42 43 _requests: {}, 44 45 _url: null, 46 47 _optionKeys: ['scope', 'success', 'failure'], 48 49 constructor: function(config) { 50 Ext.ux.util.RpcClient.superclass.constructor.call(this, config); 51 this._url = config.url || null; 52 this._id = 0; 53 54 this.addEvents( 55 // raw events 56 /** 57 * @event connected 58 * Fires when the client has retrieved the list of methods from the server. 59 * @param {Ext.ux.util.RpcClient} this 60 */ 61 'connected' 62 ); 63 this.reloadMethods(); 64 }, 65 66 reloadMethods: function() { 67 Ext.each(this._components, function(component) { 68 delete this[component]; 69 }, this); 70 this._execute('system.listMethods', { 71 success: this._setMethods, 72 scope: this 73 }); 74 }, 75 76 _execute: function(method, options) { 77 options = options || {}; 78 options.params = options.params || []; 79 options.id = this._id; 80 81 var request = Ext.encode({ 82 method: method, 83 params: options.params, 84 id: options.id 85 }); 86 this._id++; 87 88 return Ext.Ajax.request({ 89 url: this._url, 90 method: 'POST', 91 success: this._onSuccess, 92 failure: this._onFailure, 93 scope: this, 94 jsonData: request, 95 options: options 96 }); 97 }, 98 99 _onFailure: function(response, requestOptions) { 100 var options = requestOptions.options; 101 errorObj = { 102 id: options.id, 103 result: null, 104 error: 'HTTP: ' + response.status + ' ' + response.statusText 105 } 106 if (Ext.type(options.failure) != 'function') return; 107 if (options.scope) { 108 options.failure.call(options.scope, errorObj, response, requestOptions); 109 } else { 110 options.failure(errorObj, response, requestOptions); 111 } 112 }, 113 114 _onSuccess: function(response, requestOptions) { 115 var responseObj = Ext.decode(response.responseText); 116 var options = requestOptions.options; 117 if (responseObj.error) { 118 if (Ext.type(options.failure) != 'function') return; 119 if (options.scope) { 120 options.failure.call(options.scope, responseObj, response, requestOptions); 121 } else { 122 options.failure(responseObj, response, requestOptions); 123 } 124 } else { 125 if (Ext.type(options.success) != 'function') return; 126 if (options.scope) { 127 options.success.call(options.scope, responseObj.result, responseObj, response, requestOptions); 128 } else { 129 options.success(responseObj.result, responseObj, response, requestOptions); 130 } 131 } 132 }, 133 134 _parseArgs: function(args) { 135 var params = []; 136 Ext.each(args, function(arg) { 137 params.push(arg); 138 }); 139 140 var options = params[params.length - 1]; 141 if (Ext.type(options) == 'object') { 142 var keys = Ext.keys(options), isOption = false; 143 144 Ext.each(this._optionKeys, function(key) { 145 if (keys.indexOf(key) > -1) isOption = true; 146 }); 147 148 if (isOption) { 149 params.remove(options) 150 } else { 151 options = {} 152 } 153 } else { 154 options = {} 155 } 156 options.params = params; 157 return options; 158 }, 159 160 _setMethods: function(methods) { 161 var components = {}, self = this; 162 163 Ext.each(methods, function(method) { 164 var parts = method.split('.'); 165 var component = components[parts[0]] || {}; 166 167 var fn = function() { 168 var options = self._parseArgs(arguments); 169 return self._execute(method, options); 170 } 171 component[parts[1]] = fn; 172 components[parts[0]] = component; 173 }); 174 175 for (var name in components) { 176 self[name] = components[name]; 177 } 178 179 this._components = Ext.keys(components); 180 this.fireEvent('connected', this); 181 } 182 }); 183 })(); 184