cloudeebus/cloudeebus.js

   1 /******************************************************************************
   2  * Copyright 2012 Intel Corporation.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  *****************************************************************************/
  16
  17
  18
  19 /*****************************************************************************/
  20
  21 var dbus = { // hook object for dbus types not translated by python-json
  22                 Double: function(value, level) {
  23                         return value;
  24                 }
  25 };
  26
  27
  28
  29 /*****************************************************************************/
  30
  31 var cloudeebus = window.cloudeebus = {
  32                 version: "0.5.99",
  33                 minVersion: "0.3.2"
  34 };
  35
  36 cloudeebus.reset = function() {
  37         cloudeebus.sessionBus = null;
  38         cloudeebus.systemBus = null;
  39         cloudeebus.wampSession = null;
  40         cloudeebus.uri = null;
  41 };
  42
  43
  44 cloudeebus.log = function(msg) {
  45 };
  46
  47 cloudeebus.getError = function(error) {
  48         if (error.desc && error.uri)
  49                 return error.desc + " : " + error.uri;
  50         if (error.desc)
  51                 return error.desc;
  52         if (error.uri)
  53                 return error.uri;
  54         if (error.name && error.message)
  55                 return error.name + " : " + error.message;
  56         if (error.message)
  57                 return error.message;
  58         return error;
  59 };
  60
  61 cloudeebus.versionCheck = function(version) {
  62         var ver = version.split(".");
  63         var min = cloudeebus.minVersion.split(".");
  64         for (var i=0; i<ver.length; i++) {
  65                 if (Number(ver[i]) > Number(min[i]))
  66                         return true;
  67                 if (Number(ver[i]) < Number(min[i]))
  68                         return false;
  69         }
  70         return true;
  71 };
  72
  73
  74 cloudeebus.connect = function(uri, manifest, successCB, errorCB) {
  75         cloudeebus.reset();
  76         cloudeebus.uri = uri;
  77
  78         function onCloudeebusVersionCheckCB(version) {
  79                 if (cloudeebus.versionCheck(version)) {
  80                         cloudeebus.log("Connected to " + cloudeebus.uri);
  81                         if (successCB)
  82                                 successCB();
  83                 } else {
  84                         var errorMsg = "Cloudeebus server version " + version + " unsupported, need version " + cloudeebus.minVersion + " or superior";
  85                         cloudeebus.log(errorMsg);
  86                         if (errorCB)
  87                                 errorCB(errorMsg);
  88                 }
  89         }
  90
  91         function onWAMPSessionAuthErrorCB(error) {
  92                 var errorStr = cloudeebus.getError(error);
  93                 cloudeebus.log("Authentication error: " + errorStr);
  94                 if (errorCB)
  95                         errorCB(errorStr);
  96         }
  97
  98         function onWAMPSessionAuthenticatedCB(permissions) {
  99                 cloudeebus.sessionBus = new cloudeebus.BusConnection("session", cloudeebus.wampSession);
 100                 cloudeebus.systemBus = new cloudeebus.BusConnection("system", cloudeebus.wampSession);
 101                 cloudeebus.wampSession.call("getVersion").then(onCloudeebusVersionCheckCB, errorCB);
 102         }
 103
 104         function onWAMPSessionChallengedCB(challenge) {
 105                 var signature = cloudeebus.wampSession.authsign(challenge, manifest.key);
 106                 cloudeebus.wampSession.auth(signature).then(onWAMPSessionAuthenticatedCB, onWAMPSessionAuthErrorCB);
 107         }
 108
 109         function onWAMPSessionConnectedCB(session) {
 110                 cloudeebus.wampSession = session;
 111                 if (manifest)
 112                         cloudeebus.wampSession.authreq(
 113                                         manifest.name,
 114                                         {permissions: manifest.permissions}
 115                                 ).then(onWAMPSessionChallengedCB, onWAMPSessionAuthErrorCB);
 116                 else
 117                         cloudeebus.wampSession.authreq().then(function() {
 118                                 cloudeebus.wampSession.auth().then(onWAMPSessionAuthenticatedCB, onWAMPSessionAuthErrorCB);
 119                                 }, onWAMPSessionAuthErrorCB);
 120         }
 121
 122         function onWAMPSessionErrorCB(code, reason) {
 123                 if (code == ab.CONNECTION_UNSUPPORTED) {
 124                         cloudeebus.log("Browser is not supported");
 125                 }
 126                 else {
 127                         cloudeebus.log("Failed to open session, code = " + code + ", reason = " + reason);
 128                 }
 129                 if (errorCB)
 130                         errorCB(reason);
 131         }
 132
 133         return ab.connect(cloudeebus.uri, onWAMPSessionConnectedCB, onWAMPSessionErrorCB);
 134 };
 135
 136
 137 cloudeebus.SessionBus = function() {
 138         return cloudeebus.sessionBus;
 139 };
 140
 141
 142 cloudeebus.SystemBus = function() {
 143         return cloudeebus.systemBus;
 144 };
 145
 146
 147
 148 /*****************************************************************************/
 149
 150 cloudeebus.BusConnection = function(name, session) {
 151         this.name = name;
 152         this.wampSession = session;
 153         return this;
 154 };
 155
 156
 157 cloudeebus.BusConnection.prototype.getObject = function(busName, objectPath, introspectCB, errorCB) {
 158         var proxy = new cloudeebus.ProxyObject(this.wampSession, this, busName, objectPath);
 159         if (introspectCB)
 160                 proxy._introspect(introspectCB, errorCB);
 161         return proxy;
 162 };
 163
 164
 165 cloudeebus.BusConnection.prototype.addService = function(serviceName) {
 166         var self = this;
 167
 168         var promise = new cloudeebus.Promise(function (resolver) {
 169                 var cloudeebusService = new cloudeebus.Service(self.wampSession, self, serviceName);
 170
 171                 function ServiceAddedSuccessCB(serviceName) {
 172                         try { // calling dbus hook object function for un-translated types
 173                                 cloudeebusService.isCreated = true;
 174                                 resolver.fulfill(cloudeebusService, true);
 175                         }
 176                         catch (e) {
 177                                 var errorStr = cloudeebus.getError(e);
 178                                 cloudeebus.log("Method callback exception: " + errorStr);
 179                                 resolver.reject(errorStr, true);
 180                         }
 181                 }
 182
 183                 function ServiceAddedErrorCB(error) {
 184                         var errorStr = cloudeebus.getError(error);
 185                         cloudeebus.log("Error adding service method: " + self.name + ", error: " + errorStr);
 186                         resolver.reject(errorStr, true);
 187                 }
 188
 189                 var arglist = [
 190                     self.name,
 191                     serviceName
 192                     ];
 193
 194                 // call dbusSend with bus type, destination, object, message and arguments
 195                 self.wampSession.call("serviceAdd", arglist).then(ServiceAddedSuccessCB, ServiceAddedErrorCB);
 196         });
 197
 198         return promise;
 199 };
 200
 201
 202 /*****************************************************************************/
 203 //Generic definition for an agent. An agent need :
 204 //srvDbusName : the DBus parent service
 205 //objPath : a DBus path to access it
 206 //jsHdl : a Javascript handler to process methods,
 207 //xml : the xml which describe interface/methods/signals...
 208 cloudeebus.Agent = function(srvDbusName, objPath, jsHdl, xml) {
 209         this.srvName = srvDbusName;
 210         this.registered = false;
 211         this.xml = xml;
 212         this.objectPath = objPath;
 213         this.jsHdl = jsHdl;
 214         return this;
 215 };
 216
 217
 218 cloudeebus.Service = function(session, busConnection, name) {
 219         this.wampSession = session;
 220         this.busConnection = busConnection;
 221         this.name = name;
 222         this.agents = [];
 223         this.isCreated = false;
 224         return this;
 225 };
 226
 227 cloudeebus.Service.prototype.remove = function() {
 228         var self = this;
 229
 230         var promise = new cloudeebus.Promise(function (resolver) {
 231                 function ServiceRemovedSuccessCB(serviceName) {
 232                         try {
 233                                 resolver.fulfill(serviceName, true);
 234                         }
 235                         catch (e) {
 236                                 var errorStr = cloudeebus.getError(e);
 237                                 cloudeebus.log("Method callback exception: " + errorStr);
 238                                 resolver.reject(errorStr, true);
 239                         }
 240                 }
 241
 242                 function ServiceRemovedErrorCB(error) {
 243                         var errorStr = cloudeebus.getError(error);
 244                         cloudeebus.log("Error removing service : " + self.name + ", error: " + errorStr);
 245                         self.promise.resolver.reject(errorStr, true);
 246                 }
 247
 248                 for (var idx in self.agents) {
 249                         if (self.agents[idx]) {
 250                                 self.removeAgent(self.agents[idx]);
 251                         }
 252                 }
 253
 254                 var arglist = [
 255                     self.name
 256                     ];
 257
 258                 // call dbusSend with bus type, destination, object, message and arguments
 259                 self.wampSession.call("serviceRelease", arglist).then(ServiceRemovedSuccessCB, ServiceRemovedErrorCB);
 260         });
 261
 262         return promise;
 263 };
 264
 265 cloudeebus.Service.prototype._searchMethod = function(ifName, method, objectJS) {
 266
 267         var funcToCall = null;
 268
 269         // Check if 'objectJS' has a member 'interfaceProxies' with an interface named 'ifName'
 270         // and a method named 'method'
 271         if (objectJS.interfaceProxies && objectJS.interfaceProxies[ifName] &&
 272                 objectJS.interfaceProxies[ifName][method]) {
 273                 funcToCall = objectJS.interfaceProxies[ifName][method];
 274         } else {
 275                 // retrieve the method directly from 'root' of objectJs
 276                 funcToCall = objectJS[method];
 277         }
 278
 279         return funcToCall;
 280 };
 281
 282 cloudeebus.Service.prototype._addMethod = function(ifName, method, agent) {
 283
 284         var service = this;
 285         var methodId = this.name + "#" + agent.objectPath + "#" + ifName + "#" + method;
 286         var funcToCall = this._searchMethod(ifName, method, agent.jsHdl);
 287
 288         if (funcToCall == null)
 289                 cloudeebus.log("Method " + method + " doesn't exist in Javascript object");
 290         else {
 291                 agent.jsHdl.wrapperFunc[method] = function() {
 292                         var result;
 293                         var methodId = arguments[0];
 294                         var callDict = {};
 295                         // affectation of callDict in eval, otherwise dictionary(='{}') interpreted as block of code by eval
 296                         eval("callDict = " + arguments[1]);
 297                         try {
 298                                 result = funcToCall.apply(agent.jsHdl, callDict.args);
 299                                 service._returnMethod(methodId, callDict.callIndex, true, result);
 300                         }
 301                         catch (e) {
 302                                 var errorStr = cloudeebus.getError(e);
 303                                 cloudeebus.log("Method " + ifName + "." + method + " call on " + agent.objectPath + " exception: " + errorStr);
 304                                 service._returnMethod(methodId, callDict.callIndex, false, errorStr);
 305                         }
 306                 };
 307                 agent.jsHdl.methodId[agent.objectPath].push(methodId);
 308                 cloudeebus.log("subscribe " + methodId);
 309                 this.wampSession.subscribe(methodId, agent.jsHdl.wrapperFunc[method]);
 310         }
 311 };
 312
 313 cloudeebus.Service.prototype._addSignal = function(ifName, signal, agent) {
 314         var service = this;
 315         var methodExist = false;
 316
 317         if (agent.jsHdl.interfaceProxies && agent.jsHdl.interfaceProxies[ifName])
 318                 if (agent.jsHdl.interfaceProxies[ifName][signal]) {
 319                         methodExist = true;
 320                 } else {
 321                         agent.jsHdl.interfaceProxies[ifName][signal] = function() {
 322                                 service._emitSignal(agent.objectPath, signal, arguments[0]);
 323                         };
 324                 return;
 325         }
 326
 327         if ((agent.jsHdl[signal] == undefined || agent.jsHdl[signal] == null) && !methodExist)
 328                 agent.jsHdl[signal] = function() {
 329                         service._emitSignal(agent.objectPath, signal, arguments[0]);
 330                 };
 331         else
 332                 cloudeebus.log("Can not create new method to emit signal '" + signal + "' in object JS this method already exist!");
 333 };
 334
 335 cloudeebus.Service.prototype._createWrapper = function(agent) {
 336         var self = this;
 337         var parser = new DOMParser();
 338         var xmlDoc = parser.parseFromString(agent.xml, "text/xml");
 339         var ifXml = xmlDoc.getElementsByTagName("interface");
 340         agent.jsHdl.wrapperFunc = [];
 341         agent.jsHdl.methodId = [];
 342         agent.jsHdl.methodId[agent.objectPath] = [];
 343         for (var i=0; i < ifXml.length; i++) {
 344                 var ifName = ifXml[i].attributes.getNamedItem("name").value;
 345                 var ifChild = ifXml[i].firstChild;
 346                 while (ifChild) {
 347                         if (ifChild.nodeName == "method") {
 348                                 var metName = ifChild.attributes.getNamedItem("name").value;
 349                                 self._addMethod(ifName, metName, agent);
 350                         }
 351                         if (ifChild.nodeName == "signal") {
 352                                 var metName = ifChild.attributes.getNamedItem("name").value;
 353                                 self._addSignal(ifName, metName, agent);
 354                         }
 355                         ifChild = ifChild.nextSibling;
 356                 }
 357         }
 358 };
 359
 360 cloudeebus.Service.prototype.addAgent = function(agent) {
 361         var self = this;
 362
 363         var promise = new cloudeebus.Promise(function (resolver) {
 364                 function ServiceAddAgentSuccessCB(objPath) {
 365                         try { // calling dbus hook object function for un-translated types
 366                                 self.agents.push(agent);
 367                                 agent.registered = true;
 368                                 var result = [ objPath ];
 369                                 resolver.fulfill(result[0], true);
 370                         }
 371                         catch (e) {
 372                                 var errorStr = cloudeebus.getError(e);
 373                                 cloudeebus.log("Method callback exception: " + errorStr);
 374                                 resolver.reject(errorStr, true);
 375                         }
 376                 }
 377
 378                 function ServiceAddAgenterrorCB(error) {
 379                         var errorStr = cloudeebus.getError(error);
 380                         cloudeebus.log("Error adding agent : " + agent.objectPath + ", error: " + errorStr);
 381                         self.promise.resolver.reject(errorStr, true);
 382                 }
 383
 384                 try {
 385                         self._createWrapper(agent);
 386                 }
 387                 catch (e) {
 388                         var errorStr = cloudeebus.getError(e);
 389                         cloudeebus.log("Exception creating agent wrapper " + agent.objectPath + " : " + errorStr);
 390                         resolver.reject(errorStr, true);
 391                         return;
 392                 }
 393
 394                 var arglist = [
 395                     agent.objectPath,
 396                     agent.xml
 397                     ];
 398
 399                 // call dbusSend with bus type, destination, object, message and arguments
 400                 self.wampSession.call("serviceAddAgent", arglist).then(ServiceAddAgentSuccessCB, ServiceAddAgenterrorCB);
 401         });
 402
 403         return promise;
 404 };
 405
 406 cloudeebus.Service.prototype._deleteWrapper = function(agent) {
 407         var objJs = agent.jsHdl;
 408         if (objJs.methodId[agent.objectPath]) {
 409                 for (var idx in objJs.methodId[agent.objectPath]) {
 410                         try {
 411                                 cloudeebus.log("unsubscribe " + objJs.methodId[agent.objectPath][idx]);
 412                                 this.wampSession.unsubscribe(objJs.methodId[agent.objectPath][idx]);
 413                                 objJs.methodId[agent.objectPath][idx] = null;
 414                         }
 415                         catch (e) {
 416                                 cloudeebus.log("Unsubscribe error: " + cloudeebus.getError(e));
 417                         }
 418                 }
 419                 delete objJs.methodId[agent.objectPath];
 420         }
 421 };
 422
 423 cloudeebus.Service.prototype.removeAgent = function(rmAgent, successCB, errorCB) {
 424         var self = this;
 425
 426         var promise = new cloudeebus.Promise(function (resolver) {
 427                 function ServiceRemoveAgentSuccessCB(agent) {
 428                         try { // calling dbus hook object function for un-translated types
 429                                 self.agents.push(agent);
 430                                 agent.registered = true;
 431                                 var result = [ agent ];
 432                                 resolver.fulfill(result[0], true);
 433                         }
 434                         catch (e) {
 435                                 var errorStr = cloudeebus.getError(e);
 436                                 cloudeebus.log("Method callback exception: " + errorStr);
 437                                 resolver.reject(errorStr, true);
 438                         }
 439                 }
 440
 441                 function ServiceRemoveAgentErrorCB(error) {
 442                         var errorStr = cloudeebus.getError(error);
 443                         cloudeebus.log("Error removing agent : " + rmAgent.objectPath + ", error: " + errorStr);
 444                         self.promise.resolver.reject(errorStr, true);
 445                 }
 446
 447                 try {
 448                         self._deleteWrapper(rmAgent);
 449                 }
 450                 catch (e) {
 451                         var errorStr = cloudeebus.getError(e);
 452                         cloudeebus.log("Exception removing wrapper of agent " + rmAgent.objectPath + " : " + errorStr);
 453                         errorCB(errorStr);
 454                 }
 455
 456                 var arglist = [
 457                     rmAgent.objectPath
 458                     ];
 459
 460                 // call dbusSend with bus type, destination, object, message and arguments
 461                 self.wampSession.call("serviceDelAgent", arglist).then(ServiceRemoveAgentSuccessCB, ServiceRemoveAgentErrorCB);
 462         });
 463
 464         return promise;
 465 };
 466
 467 cloudeebus.Service.prototype._returnMethod = function(methodId, callIndex, success, result, successCB, errorCB) {
 468         var arglist = [
 469             methodId,
 470             callIndex,
 471             success,
 472             result
 473             ];
 474
 475         this.wampSession.call("returnMethod", arglist).then(successCB, errorCB);
 476 };
 477
 478 cloudeebus.Service.prototype._emitSignal = function(objectPath, signalName, result, successCB, errorCB) {
 479         var arglist = [
 480             objectPath,
 481             signalName,
 482             result
 483             ];
 484
 485         this.wampSession.call("emitSignal", arglist).then(successCB, errorCB);
 486 };
 487
 488
 489
 490 /*****************************************************************************/
 491
 492 function _processWrappers(wrappers, value) {
 493         for (var i=0; i<wrappers.length; i++)
 494                 wrappers[i](value);
 495 }
 496
 497
 498 function _processWrappersAsync(wrappers, value) {
 499         var taskid = -1;
 500         function processAsyncOnce() {
 501                 _processWrappers(wrappers, value);
 502                 clearInterval(taskid);
 503         }
 504         taskid = setInterval(processAsyncOnce, 200);
 505 }
 506
 507
 508
 509 /*****************************************************************************/
 510
 511 cloudeebus.PromiseResolver = function(promise) {
 512         this.promise = promise;
 513         this.resolved = null;
 514     return this;
 515 };
 516
 517
 518 cloudeebus.PromiseResolver.prototype.resolve = function(value, sync) {
 519         if (this.resolved)
 520                 return;
 521
 522         var then = (value && value.then && value.then.apply) ? value.then : null;
 523         if (then) {
 524                 var self = this;
 525                 var fulfillCallback = function(arg) {
 526                         self.resolve(arg, true);
 527                 };
 528                 var rejectCallback = function(arg) {
 529                         self.reject(arg, true);
 530                 };
 531                 try {
 532                         then.apply(value, [fulfillCallback, rejectCallback]);
 533                 }
 534                 catch (e) {
 535                         this.reject(cloudeebus.getError(e), true);
 536                 }
 537         }
 538
 539         this.fulfill(value, sync);
 540 };
 541
 542
 543 cloudeebus.PromiseResolver.prototype.fulfill = function(value, sync) {
 544         if (this.resolved)
 545                 return;
 546
 547         var promise = this.promise;
 548         promise.state = "fulfilled";
 549         promise.result = value;
 550
 551         this.resolved = true;
 552         if (sync)
 553                 _processWrappers(promise._fulfillWrappers, value);
 554         else
 555                 _processWrappersAsync(promise._fulfillWrappers, value);
 556 };
 557
 558
 559 cloudeebus.PromiseResolver.prototype.reject = function(value, sync) {
 560         if (this.resolved)
 561                 return;
 562
 563         var promise = this.promise;
 564         promise.state = "rejected";
 565         promise.result = value;
 566
 567         this.resolved = true;
 568         if (sync)
 569                 _processWrappers(promise._rejectWrappers, value);
 570         else
 571                 _processWrappersAsync(promise._rejectWrappers, value);
 572 };
 573
 574
 575
 576 /*****************************************************************************/
 577
 578 cloudeebus.Promise = function(init) {
 579         this.state = "pending";
 580         this.result = null;
 581         this._fulfillWrappers = [];
 582         this._rejectWrappers = [];
 583         this.resolver = new cloudeebus.PromiseResolver(this);
 584         if (init) {
 585                 try {
 586                         init.apply(this, [this.resolver]);
 587                 }
 588                 catch (e) {
 589                         this.resolver.reject(cloudeebus.getError(e), true);
 590                 }
 591         }
 592     return this;
 593 };
 594
 595
 596 cloudeebus.Promise.prototype.appendWrappers = function(fulfillWrapper, rejectWrapper) {
 597         if (fulfillWrapper)
 598                 this._fulfillWrappers.push(fulfillWrapper);
 599         if (rejectWrapper)
 600                 this._rejectWrappers.push(rejectWrapper);
 601         if (this.state == "fulfilled")
 602                 _processWrappersAsync(this._fulfillWrappers, this.result);
 603         if (this.state == "rejected")
 604                 _processWrappersAsync(this._rejectWrappers, this.result);
 605 };
 606
 607
 608 cloudeebus.Promise.prototype.then = function(fulfillCB, rejectCB) {
 609         var promise = new cloudeebus.Promise();
 610         var resolver = promise.resolver;
 611         var fulfillWrapper, rejectWrapper;
 612
 613         if (fulfillCB)
 614                 fulfillWrapper = function(arg) {
 615                         try {
 616                                 var value = fulfillCB.apply(promise, [arg]);
 617                                 resolver.resolve(value, true);
 618                         }
 619                         catch (e) {
 620                                 resolver.reject(cloudeebus.getError(e), true);
 621                         }
 622                 };
 623         else
 624                 fulfillWrapper = function(arg) {
 625                         resolver.fulfill(arg, true);
 626                 };
 627
 628         if (rejectCB)
 629                 rejectWrapper = function(arg) {
 630                         try {
 631                                 var value = rejectCB.apply(promise, [arg]);
 632                                 resolver.resolve(value, true);
 633                         }
 634                         catch (e) {
 635                                 resolver.reject(cloudeebus.getError(e), true);
 636                         }
 637                 };
 638         else
 639                 rejectWrapper = function(arg) {
 640                         resolver.reject(arg, true);
 641                 };
 642
 643         this.appendWrappers(fulfillWrapper,rejectWrapper);
 644         return promise;
 645 };
 646
 647
 648 cloudeebus.Promise.prototype["catch"] = function(rejectCB) {
 649         return this.then(undefined,rejectCB);
 650 };
 651
 652
 653 cloudeebus.Promise.prototype.done = function(fulfillCB, rejectCB) {
 654         this.appendWrappers(fulfillCB,rejectCB);
 655 };
 656
 657
 658 cloudeebus.Promise.resolve = function(value) {
 659         var promise = new cloudeebus.Promise();
 660         promise.resolver.resolve(value);
 661         return promise;
 662 };
 663
 664
 665 cloudeebus.Promise.fulfill = function(value) {
 666         var promise = new cloudeebus.Promise();
 667         promise.resolver.fulfill(value);
 668         return promise;
 669 };
 670
 671
 672 cloudeebus.Promise.reject = function(value) {
 673         var promise = new cloudeebus.Promise();
 674         promise.resolver.reject(value);
 675         return promise;
 676 };
 677
 678
 679 cloudeebus.Promise.any = function() {
 680         var promise = new cloudeebus.Promise();
 681         var resolver = promise.resolver;
 682         var fulfillCallback = function(arg) {
 683                 resolver.resolve(arg, true);
 684         };
 685         var rejectCallback = function(arg) {
 686                 resolver.reject(arg, true);
 687         };
 688         if (arguments.length == 0)
 689                 resolver.resolve(undefined, true);
 690         else
 691                 for (i in arguments)
 692                         Promise.resolve(arguments[i]).appendWrappers(fulfillCallback,rejectCallback);
 693         return promise;
 694 };
 695
 696
 697 cloudeebus.Promise.every = function() {
 698         var promise = new cloudeebus.Promise();
 699         var resolver = promise.resolver;
 700         var index = 0;
 701         var countdown = arguments.length;
 702         var args = new Array(countdown);
 703         var rejectCallback = function(arg) {
 704                 resolver.reject(arg, true);
 705         };
 706         if (arguments.length == 0)
 707                 resolver.resolve(undefined, true);
 708         else
 709                 for (i in arguments) {
 710                         var fulfillCallback = function(arg) {
 711                                 args[index] = arg;
 712                                 countdown--;
 713                                 if (countdown == 0)
 714                                         resolver.resolve(args, true);
 715                         };
 716                         index++;
 717                         Promise.resolve(arguments[i]).appendWrappers(fulfillCallback,rejectCallback);
 718                 }
 719
 720         return promise;
 721 };
 722
 723
 724 cloudeebus.Promise.some = function() {
 725         var promise = new cloudeebus.Promise();
 726         var resolver = promise.resolver;
 727         var index = 0;
 728         var countdown = arguments.length;
 729         var args = new Array(countdown);
 730         var fulfillCallback = function(arg) {
 731                 resolver.resolve(arg, true);
 732         };
 733         if (arguments.length == 0)
 734                 resolver.resolve(undefined, true);
 735         else
 736                 for (i in arguments) {
 737                         var rejectCallback = function(arg) {
 738                                 args[index] = arg;
 739                                 countdown--;
 740                                 if (countdown == 0)
 741                                         resolver.reject(args, true);
 742                         };
 743                         index++;
 744                         Promise.resolve(arguments[i]).appendWrappers(fulfillCallback,rejectCallback);
 745                 }
 746
 747         return promise;
 748 };
 749
 750
 751
 752 /*****************************************************************************/
 753
 754 cloudeebus.ProxyObject = function(session, busConnection, busName, objectPath) {
 755         this.wampSession = session;
 756         this.busConnection = busConnection;
 757         this.busName = busName;
 758         this.objectPath = objectPath;
 759         this.interfaceProxies = {};
 760         return this;
 761 };
 762
 763
 764 cloudeebus.ProxyObject.prototype.getInterface = function(ifName) {
 765         return this.interfaceProxies[ifName];
 766 };
 767
 768
 769 cloudeebus.ProxyObject.prototype._introspect = function(successCB, errorCB) {
 770
 771         var self = this;
 772
 773         function getAllPropertiesSuccessCB(props) {
 774                 var ifProxy = self.interfaceProxies[self.propInterfaces[self.propInterfaces.length-1]];
 775                 for (var prop in props)
 776                         ifProxy[prop] = self[prop] = props[prop];
 777                 getAllPropertiesNextInterfaceCB();
 778         }
 779
 780         function getAllPropertiesNextInterfaceCB() {
 781                 self.propInterfaces.pop();
 782                 if (self.propInterfaces.length > 0)
 783                         self.callMethod("org.freedesktop.DBus.Properties",
 784                                 "GetAll",
 785                                 [self.propInterfaces[self.propInterfaces.length-1]]).then(getAllPropertiesSuccessCB,
 786                                 errorCB ? errorCB : getAllPropertiesNextInterfaceCB);
 787                 else {
 788                         self.propInterfaces = null;
 789                         if (successCB)
 790                                 successCB(self);
 791                 }
 792         }
 793
 794         function introspectSuccessCB(str) {
 795                 var parser = new DOMParser();
 796                 var xmlDoc = parser.parseFromString(str, "text/xml");
 797                 var interfaces = xmlDoc.getElementsByTagName("interface");
 798                 self.propInterfaces = [];
 799                 var supportDBusProperties = false;
 800                 for (var i=0; i < interfaces.length; i++) {
 801                         var ifName = interfaces[i].attributes.getNamedItem("name").value;
 802                         self.interfaceProxies[ifName] = new cloudeebus.ProxyObject(self.wampSession, self.busConnection, self.busName, self.objectPath);
 803                         if (ifName == "org.freedesktop.DBus.Properties")
 804                                 supportDBusProperties = true;
 805                         var hasProperties = false;
 806                         var ifChild = interfaces[i].firstChild;
 807                         while (ifChild) {
 808                                 if (ifChild.nodeName == "method") {
 809                                         var nArgs = 0;
 810                                         var signature = "";
 811                                         var metChild = ifChild.firstChild;
 812                                         while (metChild) {
 813                                                 if (metChild.nodeName == "arg" &&
 814                                                         metChild.attributes.getNamedItem("direction").value == "in") {
 815                                                                 signature += metChild.attributes.getNamedItem("type").value;
 816                                                                 nArgs++;
 817                                                 }
 818                                                 metChild = metChild.nextSibling;
 819                                         }
 820                                         var metName = ifChild.attributes.getNamedItem("name").value;
 821                                         if (!self[metName])
 822                                                 self._addMethod(ifName, metName, nArgs, signature);
 823                                         self.interfaceProxies[ifName]._addMethod(ifName, metName, nArgs, signature);
 824                                 }
 825                                 else if (ifChild.nodeName == "property") {
 826                                         if (!hasProperties)
 827                                                 self.propInterfaces.push(ifName);
 828                                         hasProperties = true;
 829                                 }
 830                                 ifChild = ifChild.nextSibling;
 831                         }
 832                 }
 833                 if (supportDBusProperties && self.propInterfaces.length > 0) {
 834                         self.callMethod("org.freedesktop.DBus.Properties",
 835                                 "GetAll",
 836                                 [self.propInterfaces[self.propInterfaces.length-1]]).then(getAllPropertiesSuccessCB,
 837                                 errorCB ? errorCB : getAllPropertiesNextInterfaceCB);
 838                 }
 839                 else {
 840                         self.propInterfaces = null;
 841                         if (successCB)
 842                                 successCB(self);
 843                 }
 844         }
 845
 846         // call Introspect on self
 847         self.callMethod("org.freedesktop.DBus.Introspectable", "Introspect", []).then(introspectSuccessCB, errorCB);
 848 };
 849
 850
 851 cloudeebus.ProxyObject.prototype._addMethod = function(ifName, method, nArgs, signature) {
 852
 853         var self = this;
 854
 855         self[method] = function() {
 856                 var args = [];
 857                 for (var i=0; i < nArgs; i++ )
 858                         args.push(arguments[i]);
 859                 return self.callMethod(ifName, method, args, signature);
 860         };
 861 };
 862
 863
 864 cloudeebus.ProxyObject.prototype.callMethod = function(ifName, method, args, signature) {
 865
 866         var self = this;
 867
 868         var promise = new cloudeebus.Promise(function (resolver) {
 869                 function callMethodSuccessCB(str) {
 870                         try { // calling dbus hook object function for un-translated types
 871                                 var result = eval(str);
 872                                 resolver.fulfill(result[0], true);
 873                         }
 874                         catch (e) {
 875                                 var errorStr = cloudeebus.getError(e);
 876                                 cloudeebus.log("Method callback exception: " + errorStr);
 877                                 resolver.reject(errorStr, true);
 878                         }
 879                 }
 880
 881                 function callMethodErrorCB(error) {
 882                         var errorStr = cloudeebus.getError(error);
 883                         cloudeebus.log("Error calling method: " + method + " on object: " + self.objectPath + " : " + errorStr);
 884                         resolver.reject(errorStr, true);
 885                 }
 886
 887                 var arglist = [
 888                         self.busConnection.name,
 889                         self.busName,
 890                         self.objectPath,
 891                         ifName,
 892                         method,
 893                         JSON.stringify(args)
 894                 ];
 895
 896                 // call dbusSend with bus type, destination, object, message and arguments
 897                 self.wampSession.call("dbusSend", arglist).then(callMethodSuccessCB, callMethodErrorCB);
 898         });
 899
 900         return promise;
 901 };
 902
 903
 904 cloudeebus.ProxyObject.prototype.connectToSignal = function(ifName, signal, handlerCB, errorCB) {
 905
 906         var self = this;
 907
 908         function signalHandler(id, data) {
 909                 if (handlerCB) {
 910                         try { // calling dbus hook object function for un-translated types
 911                                 handlerCB.apply(self, eval(data));
 912                         }
 913                         catch (e) {
 914                                 var errorStr = cloudeebus.getError(e);
 915                                 cloudeebus.log("Signal handler exception: " + errorStr);
 916                                 if (errorCB)
 917                                         errorCB(errorStr);
 918                         }
 919                 }
 920         }
 921
 922         function connectToSignalSuccessCB(str) {
 923                 try {
 924                         self.wampSession.subscribe(str, signalHandler);
 925                 }
 926                 catch (e) {
 927                         cloudeebus.log("Subscribe error: " + cloudeebus.getError(e));
 928                 }
 929         }
 930
 931         function connectToSignalErrorCB(error) {
 932                 var errorStr = cloudeebus.getError(error);
 933                 cloudeebus.log("Error connecting to signal: " + signal + " on object: " + self.objectPath + " : " + errorStr);
 934                 if (errorCB)
 935                         errorCB(cloudeebus.getError(errorStr));
 936         }
 937
 938         var arglist = [
 939                 self.busConnection.name,
 940                 self.busName,
 941                 self.objectPath,
 942                 ifName,
 943                 signal
 944         ];
 945
 946         // call dbusSend with bus type, destination, object, message and arguments
 947         self.wampSession.call("dbusRegister", arglist).then(connectToSignalSuccessCB, connectToSignalErrorCB);
 948 };
 949
 950
 951 cloudeebus.ProxyObject.prototype.disconnectSignal = function(ifName, signal) {
 952         try {
 953                 this.wampSession.unsubscribe(this.busConnection.name + "#" + this.busName + "#" + this.objectPath + "#" + ifName + "#" + signal);
 954         }
 955         catch (e) {
 956                 cloudeebus.log("Unsubscribe error: " + cloudeebus.getError(e));
 957         }
 958 };