modules/luci-base/htdocs/luci-static/resources/luci.js

   1 (function(window, document, undefined) {
   2         'use strict';
   3
   4         /* Object.assign polyfill for IE */
   5         if (typeof Object.assign !== 'function') {
   6                 Object.defineProperty(Object, 'assign', {
   7                         value: function assign(target, varArgs) {
   8                                 if (target == null)
   9                                         throw new TypeError('Cannot convert undefined or null to object');
  10
  11                                 var to = Object(target);
  12
  13                                 for (var index = 1; index < arguments.length; index++)
  14                                         if (arguments[index] != null)
  15                                                 for (var nextKey in arguments[index])
  16                                                         if (Object.prototype.hasOwnProperty.call(arguments[index], nextKey))
  17                                                                 to[nextKey] = arguments[index][nextKey];
  18
  19                                 return to;
  20                         },
  21                         writable: true,
  22                         configurable: true
  23                 });
  24         }
  25
  26         /* Promise.finally polyfill */
  27         if (typeof Promise.prototype.finally !== 'function') {
  28                 Promise.prototype.finally = function(fn) {
  29                         var onFinally = function(cb) {
  30                                 return Promise.resolve(fn.call(this)).then(cb);
  31                         };
  32
  33                         return this.then(
  34                                 function(result) { return onFinally.call(this, function() { return result }) },
  35                                 function(reason) { return onFinally.call(this, function() { return Promise.reject(reason) }) }
  36                         );
  37                 };
  38         }
  39
  40         /*
  41          * Class declaration and inheritance helper
  42          */
  43
  44         var toCamelCase = function(s) {
  45                 return s.replace(/(?:^|[\. -])(.)/g, function(m0, m1) { return m1.toUpperCase() });
  46         };
  47
  48         var superContext = null, Class = Object.assign(function() {}, {
  49                 extend: function(properties) {
  50                         var props = {
  51                                 __base__: { value: this.prototype },
  52                                 __name__: { value: properties.__name__ || 'anonymous' }
  53                         };
  54
  55                         var ClassConstructor = function() {
  56                                 if (!(this instanceof ClassConstructor))
  57                                         throw new TypeError('Constructor must not be called without "new"');
  58
  59                                 if (Object.getPrototypeOf(this).hasOwnProperty('__init__')) {
  60                                         if (typeof(this.__init__) != 'function')
  61                                                 throw new TypeError('Class __init__ member is not a function');
  62
  63                                         this.__init__.apply(this, arguments)
  64                                 }
  65                                 else {
  66                                         this.super('__init__', arguments);
  67                                 }
  68                         };
  69
  70                         for (var key in properties)
  71                                 if (!props[key] && properties.hasOwnProperty(key))
  72                                         props[key] = { value: properties[key], writable: true };
  73
  74                         ClassConstructor.prototype = Object.create(this.prototype, props);
  75                         ClassConstructor.prototype.constructor = ClassConstructor;
  76                         Object.assign(ClassConstructor, this);
  77                         ClassConstructor.displayName = toCamelCase(props.__name__.value + 'Class');
  78
  79                         return ClassConstructor;
  80                 },
  81
  82                 singleton: function(properties /*, ... */) {
  83                         return Class.extend(properties)
  84                                 .instantiate(Class.prototype.varargs(arguments, 1));
  85                 },
  86
  87                 instantiate: function(args) {
  88                         return new (Function.prototype.bind.apply(this,
  89                                 Class.prototype.varargs(args, 0, null)))();
  90                 },
  91
  92                 call: function(self, method) {
  93                         if (typeof(this.prototype[method]) != 'function')
  94                                 throw new ReferenceError(method + ' is not defined in class');
  95
  96                         return this.prototype[method].apply(self, self.varargs(arguments, 1));
  97                 },
  98
  99                 isSubclass: function(_class) {
 100                         return (_class != null &&
 101                                 typeof(_class) == 'function' &&
 102                                 _class.prototype instanceof this);
 103                 },
 104
 105                 prototype: {
 106                         varargs: function(args, offset /*, ... */) {
 107                                 return Array.prototype.slice.call(arguments, 2)
 108                                         .concat(Array.prototype.slice.call(args, offset));
 109                         },
 110
 111                         super: function(key, callArgs) {
 112                                 for (superContext = Object.getPrototypeOf(superContext ||
 113                                                                           Object.getPrototypeOf(this));
 114                                      superContext && !superContext.hasOwnProperty(key);
 115                                      superContext = Object.getPrototypeOf(superContext)) { }
 116
 117                                 if (!superContext)
 118                                         return null;
 119
 120                                 var res = superContext[key];
 121
 122                                 if (arguments.length > 1) {
 123                                         if (typeof(res) != 'function')
 124                                                 throw new ReferenceError(key + ' is not a function in base class');
 125
 126                                         if (typeof(callArgs) != 'object')
 127                                                 callArgs = this.varargs(arguments, 1);
 128
 129                                         res = res.apply(this, callArgs);
 130                                 }
 131
 132                                 superContext = null;
 133
 134                                 return res;
 135                         },
 136
 137                         toString: function() {
 138                                 var s = '[' + this.constructor.displayName + ']', f = true;
 139                                 for (var k in this) {
 140                                         if (this.hasOwnProperty(k)) {
 141                                                 s += (f ? ' {\n' : '') + '  ' + k + ': ' + typeof(this[k]) + '\n';
 142                                                 f = false;
 143                                         }
 144                                 }
 145                                 return s + (f ? '' : '}');
 146                         }
 147                 }
 148         });
 149
 150
 151         /*
 152          * HTTP Request helper
 153          */
 154
 155         var Headers = Class.extend({
 156                 __name__: 'LuCI.XHR.Headers',
 157                 __init__: function(xhr) {
 158                         var hdrs = this.headers = {};
 159                         xhr.getAllResponseHeaders().split(/\r\n/).forEach(function(line) {
 160                                 var m = /^([^:]+):(.*)$/.exec(line);
 161                                 if (m != null)
 162                                         hdrs[m[1].trim().toLowerCase()] = m[2].trim();
 163                         });
 164                 },
 165
 166                 has: function(name) {
 167                         return this.headers.hasOwnProperty(String(name).toLowerCase());
 168                 },
 169
 170                 get: function(name) {
 171                         var key = String(name).toLowerCase();
 172                         return this.headers.hasOwnProperty(key) ? this.headers[key] : null;
 173                 }
 174         });
 175
 176         var Response = Class.extend({
 177                 __name__: 'LuCI.XHR.Response',
 178                 __init__: function(xhr, url, duration, headers, content) {
 179                         this.ok = (xhr.status >= 200 && xhr.status <= 299);
 180                         this.status = xhr.status;
 181                         this.statusText = xhr.statusText;
 182                         this.headers = (headers != null) ? headers : new Headers(xhr);
 183                         this.duration = duration;
 184                         this.url = url;
 185                         this.xhr = xhr;
 186
 187                         if (content != null && typeof(content) == 'object') {
 188                                 this.responseJSON = content;
 189                                 this.responseText = null;
 190                         }
 191                         else if (content != null) {
 192                                 this.responseJSON = null;
 193                                 this.responseText = String(content);
 194                         }
 195                         else {
 196                                 this.responseJSON = null;
 197                                 this.responseText = xhr.responseText;
 198                         }
 199                 },
 200
 201                 clone: function(content) {
 202                         var copy = new Response(this.xhr, this.url, this.duration, this.headers, content);
 203
 204                         copy.ok = this.ok;
 205                         copy.status = this.status;
 206                         copy.statusText = this.statusText;
 207
 208                         return copy;
 209                 },
 210
 211                 json: function() {
 212                         if (this.responseJSON == null)
 213                                 this.responseJSON = JSON.parse(this.responseText);
 214
 215                         return this.responseJSON;
 216                 },
 217
 218                 text: function() {
 219                         if (this.responseText == null && this.responseJSON != null)
 220                                 this.responseText = JSON.stringify(this.responseJSON);
 221
 222                         return this.responseText;
 223                 }
 224         });
 225
 226
 227         var requestQueue = [];
 228
 229         function isQueueableRequest(opt) {
 230                 if (!classes.rpc)
 231                         return false;
 232
 233                 if (opt.method != 'POST' || typeof(opt.content) != 'object')
 234                         return false;
 235
 236                 if (opt.nobatch === true)
 237                         return false;
 238
 239                 var rpcBaseURL = Request.expandURL(classes.rpc.getBaseURL());
 240
 241                 return (rpcBaseURL != null && opt.url.indexOf(rpcBaseURL) == 0);
 242         }
 243
 244         function flushRequestQueue() {
 245                 if (!requestQueue.length)
 246                         return;
 247
 248                 var reqopt = Object.assign({}, requestQueue[0][0], { content: [], nobatch: true }),
 249                     batch = [];
 250
 251                 for (var i = 0; i < requestQueue.length; i++) {
 252                         batch[i] = requestQueue[i];
 253                         reqopt.content[i] = batch[i][0].content;
 254                 }
 255
 256                 requestQueue.length = 0;
 257
 258                 Request.request(rpcBaseURL, reqopt).then(function(reply) {
 259                         var json = null, req = null;
 260
 261                         try { json = reply.json() }
 262                         catch(e) { }
 263
 264                         while ((req = batch.shift()) != null)
 265                                 if (Array.isArray(json) && json.length)
 266                                         req[2].call(reqopt, reply.clone(json.shift()));
 267                                 else
 268                                         req[1].call(reqopt, new Error('No related RPC reply'));
 269                 }).catch(function(error) {
 270                         var req = null;
 271
 272                         while ((req = batch.shift()) != null)
 273                                 req[1].call(reqopt, error);
 274                 });
 275         }
 276
 277         var Request = Class.singleton({
 278                 __name__: 'LuCI.Request',
 279
 280                 interceptors: [],
 281
 282                 expandURL: function(url) {
 283                         if (!/^(?:[^/]+:)?\/\//.test(url))
 284                                 url = location.protocol + '//' + location.host + url;
 285
 286                         return url;
 287                 },
 288
 289                 request: function(target, options) {
 290                         var state = { xhr: new XMLHttpRequest(), url: this.expandURL(target), start: Date.now() },
 291                             opt = Object.assign({}, options, state),
 292                             content = null,
 293                             contenttype = null,
 294                             callback = this.handleReadyStateChange;
 295
 296                         return new Promise(function(resolveFn, rejectFn) {
 297                                 opt.xhr.onreadystatechange = callback.bind(opt, resolveFn, rejectFn);
 298                                 opt.method = String(opt.method || 'GET').toUpperCase();
 299
 300                                 if ('query' in opt) {
 301                                         var q = (opt.query != null) ? Object.keys(opt.query).map(function(k) {
 302                                                 if (opt.query[k] != null) {
 303                                                         var v = (typeof(opt.query[k]) == 'object')
 304                                                                 ? JSON.stringify(opt.query[k])
 305                                                                 : String(opt.query[k]);
 306
 307                                                         return '%s=%s'.format(encodeURIComponent(k), encodeURIComponent(v));
 308                                                 }
 309                                                 else {
 310                                                         return encodeURIComponent(k);
 311                                                 }
 312                                         }).join('&') : '';
 313
 314                                         if (q !== '') {
 315                                                 switch (opt.method) {
 316                                                 case 'GET':
 317                                                 case 'HEAD':
 318                                                 case 'OPTIONS':
 319                                                         opt.url += ((/\?/).test(opt.url) ? '&' : '?') + q;
 320                                                         break;
 321
 322                                                 default:
 323                                                         if (content == null) {
 324                                                                 content = q;
 325                                                                 contenttype = 'application/x-www-form-urlencoded';
 326                                                         }
 327                                                 }
 328                                         }
 329                                 }
 330
 331                                 if (!opt.cache)
 332                                         opt.url += ((/\?/).test(opt.url) ? '&' : '?') + (new Date()).getTime();
 333
 334                                 if (isQueueableRequest(opt)) {
 335                                         requestQueue.push([opt, rejectFn, resolveFn]);
 336                                         requestAnimationFrame(flushRequestQueue);
 337                                         return;
 338                                 }
 339
 340                                 if ('username' in opt && 'password' in opt)
 341                                         opt.xhr.open(opt.method, opt.url, true, opt.username, opt.password);
 342                                 else
 343                                         opt.xhr.open(opt.method, opt.url, true);
 344
 345                                 opt.xhr.responseType = 'text';
 346
 347                                 if ('overrideMimeType' in opt.xhr)
 348                                         opt.xhr.overrideMimeType('application/octet-stream');
 349
 350                                 if ('timeout' in opt)
 351                                         opt.xhr.timeout = +opt.timeout;
 352
 353                                 if ('credentials' in opt)
 354                                         opt.xhr.withCredentials = !!opt.credentials;
 355
 356                                 if (opt.content != null) {
 357                                         switch (typeof(opt.content)) {
 358                                         case 'function':
 359                                                 content = opt.content(xhr);
 360                                                 break;
 361
 362                                         case 'object':
 363                                                 content = JSON.stringify(opt.content);
 364                                                 contenttype = 'application/json';
 365                                                 break;
 366
 367                                         default:
 368                                                 content = String(opt.content);
 369                                         }
 370                                 }
 371
 372                                 if ('headers' in opt)
 373                                         for (var header in opt.headers)
 374                                                 if (opt.headers.hasOwnProperty(header)) {
 375                                                         if (header.toLowerCase() != 'content-type')
 376                                                                 opt.xhr.setRequestHeader(header, opt.headers[header]);
 377                                                         else
 378                                                                 contenttype = opt.headers[header];
 379                                                 }
 380
 381                                 if (contenttype != null)
 382                                         opt.xhr.setRequestHeader('Content-Type', contenttype);
 383
 384                                 try {
 385                                         opt.xhr.send(content);
 386                                 }
 387                                 catch (e) {
 388                                         rejectFn.call(opt, e);
 389                                 }
 390                         });
 391                 },
 392
 393                 handleReadyStateChange: function(resolveFn, rejectFn, ev) {
 394                         var xhr = this.xhr;
 395
 396                         if (xhr.readyState !== 4)
 397                                 return;
 398
 399                         if (xhr.status === 0 && xhr.statusText === '') {
 400                                 rejectFn.call(this, new Error('XHR request aborted by browser'));
 401                         }
 402                         else {
 403                                 var response = new Response(
 404                                         xhr, xhr.responseURL || this.url, Date.now() - this.start);
 405
 406                                 Promise.all(Request.interceptors.map(function(fn) { return fn(response) }))
 407                                         .then(resolveFn.bind(this, response))
 408                                         .catch(rejectFn.bind(this));
 409                         }
 410                 },
 411
 412                 get: function(url, options) {
 413                         return this.request(url, Object.assign({ method: 'GET' }, options));
 414                 },
 415
 416                 post: function(url, data, options) {
 417                         return this.request(url, Object.assign({ method: 'POST', content: data }, options));
 418                 },
 419
 420                 addInterceptor: function(interceptorFn) {
 421                         if (typeof(interceptorFn) == 'function')
 422                                 this.interceptors.push(interceptorFn);
 423                         return interceptorFn;
 424                 },
 425
 426                 removeInterceptor: function(interceptorFn) {
 427                         var oldlen = this.interceptors.length, i = oldlen;
 428                         while (i--)
 429                                 if (this.interceptors[i] === interceptorFn)
 430                                         this.interceptors.splice(i, 1);
 431                         return (this.interceptors.length < oldlen);
 432                 },
 433
 434                 poll: {
 435                         add: function(interval, url, options, callback) {
 436                                 if (isNaN(interval) || interval <= 0)
 437                                         throw new TypeError('Invalid poll interval');
 438
 439                                 var ival = interval >>> 0,
 440                                     opts = Object.assign({}, options, { timeout: ival * 1000 - 5 });
 441
 442                                 return Poll.add(function() {
 443                                         return Request.request(url, options).then(function(res) {
 444                                                 if (!Poll.active())
 445                                                         return;
 446
 447                                                 try {
 448                                                         callback(res, res.json(), res.duration);
 449                                                 }
 450                                                 catch (err) {
 451                                                         callback(res, null, res.duration);
 452                                                 }
 453                                         });
 454                                 }, ival);
 455                         },
 456
 457                         remove: function(entry) { return Poll.remove(entry) },
 458                         start: function() { return Poll.start() },
 459                         stop: function() { return Poll.stop() },
 460                         active: function() { return Poll.active() }
 461                 }
 462         });
 463
 464         var Poll = Class.singleton({
 465                 __name__: 'LuCI.Poll',
 466
 467                 queue: [],
 468
 469                 add: function(fn, interval) {
 470                         if (interval == null || interval <= 0)
 471                                 interval = window.L ? window.L.env.pollinterval : null;
 472
 473                         if (isNaN(interval) || typeof(fn) != 'function')
 474                                 throw new TypeError('Invalid argument to LuCI.Poll.add()');
 475
 476                         for (var i = 0; i < this.queue.length; i++)
 477                                 if (this.queue[i].fn === fn)
 478                                         return false;
 479
 480                         var e = {
 481                                 r: true,
 482                                 i: interval >>> 0,
 483                                 fn: fn
 484                         };
 485
 486                         this.queue.push(e);
 487
 488                         if (this.tick != null && !this.active())
 489                                 this.start();
 490
 491                         return true;
 492                 },
 493
 494                 remove: function(fn) {
 495                         if (typeof(fn) != 'function')
 496                                 throw new TypeError('Invalid argument to LuCI.Poll.remove()');
 497
 498                         var len = this.queue.length;
 499
 500                         for (var i = len; i > 0; i--)
 501                                 if (this.queue[i-1].fn === fn)
 502                                         this.queue.splice(i-1, 1);
 503
 504                         if (!this.queue.length && this.stop())
 505                                 this.tick = 0;
 506
 507                         return (this.queue.length != len);
 508                 },
 509
 510                 start: function() {
 511                         if (this.active())
 512                                 return false;
 513
 514                         this.tick = 0;
 515
 516                         if (this.queue.length) {
 517                                 this.timer = window.setInterval(this.step, 1000);
 518                                 this.step();
 519                                 document.dispatchEvent(new CustomEvent('poll-start'));
 520                         }
 521
 522                         return true;
 523                 },
 524
 525                 stop: function() {
 526                         if (!this.active())
 527                                 return false;
 528
 529                         document.dispatchEvent(new CustomEvent('poll-stop'));
 530                         window.clearInterval(this.timer);
 531                         delete this.timer;
 532                         delete this.tick;
 533                         return true;
 534                 },
 535
 536                 step: function() {
 537                         for (var i = 0, e = null; (e = Poll.queue[i]) != null; i++) {
 538                                 if ((Poll.tick % e.i) != 0)
 539                                         continue;
 540
 541                                 if (!e.r)
 542                                         continue;
 543
 544                                 e.r = false;
 545
 546                                 Promise.resolve(e.fn()).finally((function() { this.r = true }).bind(e));
 547                         }
 548
 549                         Poll.tick = (Poll.tick + 1) % Math.pow(2, 32);
 550                 },
 551
 552                 active: function() {
 553                         return (this.timer != null);
 554                 }
 555         });
 556
 557
 558         var dummyElem = null,
 559             domParser = null,
 560             originalCBIInit = null,
 561             rpcBaseURL = null,
 562             sysFeatures = null,
 563             classes = {};
 564
 565         var LuCI = Class.extend({
 566                 __name__: 'LuCI',
 567                 __init__: function(env) {
 568
 569                         document.querySelectorAll('script[src*="/luci.js"]').forEach(function(s) {
 570                                 if (env.base_url == null || env.base_url == '')
 571                                         env.base_url = s.getAttribute('src').replace(/\/luci\.js(?:\?v=[^?]+)?$/, '');
 572                         });
 573
 574                         if (env.base_url == null)
 575                                 this.error('InternalError', 'Cannot find url of luci.js');
 576
 577                         Object.assign(this.env, env);
 578
 579                         document.addEventListener('poll-start', function(ev) {
 580                                 document.querySelectorAll('[id^="xhr_poll_status"]').forEach(function(e) {
 581                                         e.style.display = (e.id == 'xhr_poll_status_off') ? 'none' : '';
 582                                 });
 583                         });
 584
 585                         document.addEventListener('poll-stop', function(ev) {
 586                                 document.querySelectorAll('[id^="xhr_poll_status"]').forEach(function(e) {
 587                                         e.style.display = (e.id == 'xhr_poll_status_on') ? 'none' : '';
 588                                 });
 589                         });
 590
 591                         var domReady = new Promise(function(resolveFn, rejectFn) {
 592                                 document.addEventListener('DOMContentLoaded', resolveFn);
 593                         });
 594
 595                         Promise.all([
 596                                 domReady,
 597                                 this.require('ui'),
 598                                 this.require('rpc'),
 599                                 this.require('form'),
 600                                 this.probeRPCBaseURL()
 601                         ]).then(this.setupDOM.bind(this)).catch(this.error);
 602
 603                         originalCBIInit = window.cbi_init;
 604                         window.cbi_init = function() {};
 605                 },
 606
 607                 raise: function(type, fmt /*, ...*/) {
 608                         var e = null,
 609                             msg = fmt ? String.prototype.format.apply(fmt, this.varargs(arguments, 2)) : null,
 610                             stack = null;
 611
 612                         if (type instanceof Error) {
 613                                 e = type;
 614                                 stack = (e.stack || '').split(/\n/);
 615
 616                                 if (msg)
 617                                         e.message = msg + ': ' + e.message;
 618                         }
 619                         else {
 620                                 e = new (window[type || 'Error'] || Error)(msg || 'Unspecified error');
 621                                 e.name = type || 'Error';
 622                         }
 623
 624                         if (window.console && console.debug)
 625                                 console.debug(e);
 626
 627                         throw e;
 628                 },
 629
 630                 error: function(type, fmt /*, ...*/) {
 631                         try {
 632                                 L.raise.apply(L, Array.prototype.slice.call(arguments));
 633                         }
 634                         catch (e) {
 635                                 var stack = (e.stack || '').split(/\n/).map(function(frame) {
 636                                         frame = frame.replace(/(.*?)@(.+):(\d+):(\d+)/g, 'at $1 ($2:$3:$4)').trim();
 637                                         return frame ? '  ' + frame : '';
 638                                 });
 639
 640                                 if (!/^  at /.test(stack[0]))
 641                                         stack.shift();
 642
 643                                 if (/\braise /.test(stack[0]))
 644                                         stack.shift();
 645
 646                                 if (/\berror /.test(stack[0]))
 647                                         stack.shift();
 648
 649                                 stack = stack.length ? '\n' + stack.join('\n') : '';
 650
 651                                 if (L.ui)
 652                                         L.ui.showModal(e.name || _('Runtime error'),
 653                                                 E('pre', { 'class': 'alert-message error' }, e.message + stack));
 654                                 else
 655                                         L.dom.content(document.querySelector('#maincontent'),
 656                                                 E('pre', { 'class': 'alert-message error' }, e + stack));
 657
 658                                 throw e;
 659                         }
 660                 },
 661
 662                 bind: function(fn, self /*, ... */) {
 663                         return Function.prototype.bind.apply(fn, this.varargs(arguments, 2, self));
 664                 },
 665
 666                 /* Class require */
 667                 require: function(name, from) {
 668                         var L = this, url = null, from = from || [];
 669
 670                         /* Class already loaded */
 671                         if (classes[name] != null) {
 672                                 /* Circular dependency */
 673                                 if (from.indexOf(name) != -1)
 674                                         L.raise('DependencyError',
 675                                                 'Circular dependency: class "%s" depends on "%s"',
 676                                                 name, from.join('" which depends on "'));
 677
 678                                 return classes[name];
 679                         }
 680
 681                         url = '%s/%s.js'.format(L.env.base_url, name.replace(/\./g, '/'));
 682                         from = [ name ].concat(from);
 683
 684                         var compileClass = function(res) {
 685                                 if (!res.ok)
 686                                         L.raise('NetworkError',
 687                                                 'HTTP error %d while loading class file "%s"', res.status, url);
 688
 689                                 var source = res.text(),
 690                                     requirematch = /^require[ \t]+(\S+)(?:[ \t]+as[ \t]+([a-zA-Z_]\S*))?$/,
 691                                     strictmatch = /^use[ \t]+strict$/,
 692                                     depends = [],
 693                                     args = '';
 694
 695                                 /* find require statements in source */
 696                                 for (var i = 0, off = -1, quote = -1, esc = false; i < source.length; i++) {
 697                                         var chr = source.charCodeAt(i);
 698
 699                                         if (esc) {
 700                                                 esc = false;
 701                                         }
 702                                         else if (chr == 92) {
 703                                                 esc = true;
 704                                         }
 705                                         else if (chr == quote) {
 706                                                 var s = source.substring(off, i),
 707                                                     m = requirematch.exec(s);
 708
 709                                                 if (m) {
 710                                                         var dep = m[1], as = m[2] || dep.replace(/[^a-zA-Z0-9_]/g, '_');
 711                                                         depends.push(L.require(dep, from));
 712                                                         args += ', ' + as;
 713                                                 }
 714                                                 else if (!strictmatch.exec(s)) {
 715                                                         break;
 716                                                 }
 717
 718                                                 off = -1;
 719                                                 quote = -1;
 720                                         }
 721                                         else if (quote == -1 && (chr == 34 || chr == 39)) {
 722                                                 off = i + 1;
 723                                                 quote = chr;
 724                                         }
 725                                 }
 726
 727                                 /* load dependencies and instantiate class */
 728                                 return Promise.all(depends).then(function(instances) {
 729                                         var _factory, _class;
 730
 731                                         try {
 732                                                 _factory = eval(
 733                                                         '(function(window, document, L%s) { %s })\n\n//# sourceURL=%s\n'
 734                                                                 .format(args, source, res.url));
 735                                         }
 736                                         catch (error) {
 737                                                 L.raise('SyntaxError', '%s\n  in %s:%s',
 738                                                         error.message, res.url, error.lineNumber || '?');
 739                                         }
 740
 741                                         _factory.displayName = toCamelCase(name + 'ClassFactory');
 742                                         _class = _factory.apply(_factory, [window, document, L].concat(instances));
 743
 744                                         if (!Class.isSubclass(_class))
 745                                             L.error('TypeError', '"%s" factory yields invalid constructor', name);
 746
 747                                         if (_class.displayName == 'AnonymousClass')
 748                                                 _class.displayName = toCamelCase(name + 'Class');
 749
 750                                         var ptr = Object.getPrototypeOf(L),
 751                                             parts = name.split(/\./),
 752                                             instance = new _class();
 753
 754                                         for (var i = 0; ptr && i < parts.length - 1; i++)
 755                                                 ptr = ptr[parts[i]];
 756
 757                                         if (ptr)
 758                                                 ptr[parts[i]] = instance;
 759
 760                                         classes[name] = instance;
 761
 762                                         return instance;
 763                                 });
 764                         };
 765
 766                         /* Request class file */
 767                         classes[name] = Request.get(url, { cache: true }).then(compileClass);
 768
 769                         return classes[name];
 770                 },
 771
 772                 /* DOM setup */
 773                 probeRPCBaseURL: function() {
 774                         if (rpcBaseURL == null) {
 775                                 try {
 776                                         rpcBaseURL = window.sessionStorage.getItem('rpcBaseURL');
 777                                 }
 778                                 catch (e) { }
 779                         }
 780
 781                         if (rpcBaseURL == null) {
 782                                 var rpcFallbackURL = this.url('admin/ubus');
 783
 784                                 rpcBaseURL = Request.get('/ubus/').then(function(res) {
 785                                         return (rpcBaseURL = (res.status == 400) ? '/ubus/' : rpcFallbackURL);
 786                                 }, function() {
 787                                         return (rpcBaseURL = rpcFallbackURL);
 788                                 }).then(function(url) {
 789                                         try {
 790                                                 window.sessionStorage.setItem('rpcBaseURL', url);
 791                                         }
 792                                         catch (e) { }
 793
 794                                         return url;
 795                                 });
 796                         }
 797
 798                         return Promise.resolve(rpcBaseURL);
 799                 },
 800
 801                 probeSystemFeatures: function() {
 802                         if (sysFeatures == null) {
 803                                 try {
 804                                         sysFeatures = JSON.parse(window.sessionStorage.getItem('sysFeatures'));
 805                                 }
 806                                 catch (e) {}
 807                         }
 808
 809                         if (!this.isObject(sysFeatures)) {
 810                                 sysFeatures = classes.rpc.declare({
 811                                         object: 'luci',
 812                                         method: 'getFeatures',
 813                                         expect: { '': {} }
 814                                 })().then(function(features) {
 815                                         try {
 816                                                 window.sessionStorage.setItem('sysFeatures', JSON.stringify(features));
 817                                         }
 818                                         catch (e) {}
 819
 820                                         sysFeatures = features;
 821
 822                                         return features;
 823                                 });
 824                         }
 825
 826                         return Promise.resolve(sysFeatures);
 827                 },
 828
 829                 hasSystemFeature: function() {
 830                         var ft = sysFeatures[arguments[0]];
 831
 832                         if (arguments.length == 2)
 833                                 return this.isObject(ft) ? ft[arguments[1]] : null;
 834
 835                         return (ft != null && ft != false);
 836                 },
 837
 838                 setupDOM: function(res) {
 839                         var domEv = res[0],
 840                             uiClass = res[1],
 841                             rpcClass = res[2],
 842                             formClass = res[3],
 843                             rpcBaseURL = res[4];
 844
 845                         rpcClass.setBaseURL(rpcBaseURL);
 846
 847                         Request.addInterceptor(function(res) {
 848                                 if (res.status != 403 || res.headers.get('X-LuCI-Login-Required') != 'yes')
 849                                         return;
 850
 851                                 Poll.stop();
 852
 853                                 L.ui.showModal(_('Session expired'), [
 854                                         E('div', { class: 'alert-message warning' },
 855                                                 _('A new login is required since the authentication session expired.')),
 856                                         E('div', { class: 'right' },
 857                                                 E('div', {
 858                                                         class: 'btn primary',
 859                                                         click: function() {
 860                                                                 var loc = window.location;
 861                                                                 window.location = loc.protocol + '//' + loc.host + loc.pathname + loc.search;
 862                                                         }
 863                                                 }, _('To login…')))
 864                                 ]);
 865
 866                                 throw 'Session expired';
 867                         });
 868
 869                         return this.probeSystemFeatures().finally(this.initDOM);
 870                 },
 871
 872                 initDOM: function() {
 873                         originalCBIInit();
 874                         Poll.start();
 875                         document.dispatchEvent(new CustomEvent('luci-loaded'));
 876                 },
 877
 878                 env: {},
 879
 880                 /* URL construction helpers */
 881                 path: function(prefix, parts) {
 882                         var url = [ prefix || '' ];
 883
 884                         for (var i = 0; i < parts.length; i++)
 885                                 if (/^(?:[a-zA-Z0-9_.%,;-]+\/)*[a-zA-Z0-9_.%,;-]+$/.test(parts[i]))
 886                                         url.push('/', parts[i]);
 887
 888                         if (url.length === 1)
 889                                 url.push('/');
 890
 891                         return url.join('');
 892                 },
 893
 894                 url: function() {
 895                         return this.path(this.env.scriptname, arguments);
 896                 },
 897
 898                 resource: function() {
 899                         return this.path(this.env.resource, arguments);
 900                 },
 901
 902                 location: function() {
 903                         return this.path(this.env.scriptname, this.env.requestpath);
 904                 },
 905
 906
 907                 /* Data helpers */
 908                 isObject: function(val) {
 909                         return (val != null && typeof(val) == 'object');
 910                 },
 911
 912                 sortedKeys: function(obj, key, sortmode) {
 913                         if (obj == null || typeof(obj) != 'object')
 914                                 return [];
 915
 916                         return Object.keys(obj).map(function(e) {
 917                                 var v = (key != null) ? obj[e][key] : e;
 918
 919                                 switch (sortmode) {
 920                                 case 'addr':
 921                                         v = (v != null) ? v.replace(/(?:^|[.:])([0-9a-fA-F]{1,4})/g,
 922                                                 function(m0, m1) { return ('000' + m1.toLowerCase()).substr(-4) }) : null;
 923                                         break;
 924
 925                                 case 'num':
 926                                         v = (v != null) ? +v : null;
 927                                         break;
 928                                 }
 929
 930                                 return [ e, v ];
 931                         }).filter(function(e) {
 932                                 return (e[1] != null);
 933                         }).sort(function(a, b) {
 934                                 return (a[1] > b[1]);
 935                         }).map(function(e) {
 936                                 return e[0];
 937                         });
 938                 },
 939
 940                 toArray: function(val) {
 941                         if (val == null)
 942                                 return [];
 943                         else if (Array.isArray(val))
 944                                 return val;
 945                         else if (typeof(val) == 'object')
 946                                 return [ val ];
 947
 948                         var s = String(val).trim();
 949
 950                         if (s == '')
 951                                 return [];
 952
 953                         return s.split(/\s+/);
 954                 },
 955
 956
 957                 /* HTTP resource fetching */
 958                 get: function(url, args, cb) {
 959                         return this.poll(null, url, args, cb, false);
 960                 },
 961
 962                 post: function(url, args, cb) {
 963                         return this.poll(null, url, args, cb, true);
 964                 },
 965
 966                 poll: function(interval, url, args, cb, post) {
 967                         if (interval !== null && interval <= 0)
 968                                 interval = this.env.pollinterval;
 969
 970                         var data = post ? { token: this.env.token } : null,
 971                             method = post ? 'POST' : 'GET';
 972
 973                         if (!/^(?:\/|\S+:\/\/)/.test(url))
 974                                 url = this.url(url);
 975
 976                         if (args != null)
 977                                 data = Object.assign(data || {}, args);
 978
 979                         if (interval !== null)
 980                                 return Request.poll.add(interval, url, { method: method, query: data }, cb);
 981                         else
 982                                 return Request.request(url, { method: method, query: data })
 983                                         .then(function(res) {
 984                                                 var json = null;
 985                                                 if (/^application\/json\b/.test(res.headers.get('Content-Type')))
 986                                                         try { json = res.json() } catch(e) {}
 987                                                 cb(res.xhr, json, res.duration);
 988                                         });
 989                 },
 990
 991                 stop: function(entry) { return Poll.remove(entry) },
 992                 halt: function() { return Poll.stop() },
 993                 run: function() { return Poll.start() },
 994
 995                 /* DOM manipulation */
 996                 dom: Class.singleton({
 997                         __name__: 'LuCI.DOM',
 998
 999                         elem: function(e) {
1000                                 return (e != null && typeof(e) == 'object' && 'nodeType' in e);
1001                         },
1002
1003                         parse: function(s) {
1004                                 var elem;
1005
1006                                 try {
1007                                         domParser = domParser || new DOMParser();
1008                                         elem = domParser.parseFromString(s, 'text/html').body.firstChild;
1009                                 }
1010                                 catch(e) {}
1011
1012                                 if (!elem) {
1013                                         try {
1014                                                 dummyElem = dummyElem || document.createElement('div');
1015                                                 dummyElem.innerHTML = s;
1016                                                 elem = dummyElem.firstChild;
1017                                         }
1018                                         catch (e) {}
1019                                 }
1020
1021                                 return elem || null;
1022                         },
1023
1024                         matches: function(node, selector) {
1025                                 var m = this.elem(node) ? node.matches || node.msMatchesSelector : null;
1026                                 return m ? m.call(node, selector) : false;
1027                         },
1028
1029                         parent: function(node, selector) {
1030                                 if (this.elem(node) && node.closest)
1031                                         return node.closest(selector);
1032
1033                                 while (this.elem(node))
1034                                         if (this.matches(node, selector))
1035                                                 return node;
1036                                         else
1037                                                 node = node.parentNode;
1038
1039                                 return null;
1040                         },
1041
1042                         append: function(node, children) {
1043                                 if (!this.elem(node))
1044                                         return null;
1045
1046                                 if (Array.isArray(children)) {
1047                                         for (var i = 0; i < children.length; i++)
1048                                                 if (this.elem(children[i]))
1049                                                         node.appendChild(children[i]);
1050                                                 else if (children !== null && children !== undefined)
1051                                                         node.appendChild(document.createTextNode('' + children[i]));
1052
1053                                         return node.lastChild;
1054                                 }
1055                                 else if (typeof(children) === 'function') {
1056                                         return this.append(node, children(node));
1057                                 }
1058                                 else if (this.elem(children)) {
1059                                         return node.appendChild(children);
1060                                 }
1061                                 else if (children !== null && children !== undefined) {
1062                                         node.innerHTML = '' + children;
1063                                         return node.lastChild;
1064                                 }
1065
1066                                 return null;
1067                         },
1068
1069                         content: function(node, children) {
1070                                 if (!this.elem(node))
1071                                         return null;
1072
1073                                 var dataNodes = node.querySelectorAll('[data-idref]');
1074
1075                                 for (var i = 0; i < dataNodes.length; i++)
1076                                         delete this.registry[dataNodes[i].getAttribute('data-idref')];
1077
1078                                 while (node.firstChild)
1079                                         node.removeChild(node.firstChild);
1080
1081                                 return this.append(node, children);
1082                         },
1083
1084                         attr: function(node, key, val) {
1085                                 if (!this.elem(node))
1086                                         return null;
1087
1088                                 var attr = null;
1089
1090                                 if (typeof(key) === 'object' && key !== null)
1091                                         attr = key;
1092                                 else if (typeof(key) === 'string')
1093                                         attr = {}, attr[key] = val;
1094
1095                                 for (key in attr) {
1096                                         if (!attr.hasOwnProperty(key) || attr[key] == null)
1097                                                 continue;
1098
1099                                         switch (typeof(attr[key])) {
1100                                         case 'function':
1101                                                 node.addEventListener(key, attr[key]);
1102                                                 break;
1103
1104                                         case 'object':
1105                                                 node.setAttribute(key, JSON.stringify(attr[key]));
1106                                                 break;
1107
1108                                         default:
1109                                                 node.setAttribute(key, attr[key]);
1110                                         }
1111                                 }
1112                         },
1113
1114                         create: function() {
1115                                 var html = arguments[0],
1116                                     attr = arguments[1],
1117                                     data = arguments[2],
1118                                     elem;
1119
1120                                 if (!(attr instanceof Object) || Array.isArray(attr))
1121                                         data = attr, attr = null;
1122
1123                                 if (Array.isArray(html)) {
1124                                         elem = document.createDocumentFragment();
1125                                         for (var i = 0; i < html.length; i++)
1126                                                 elem.appendChild(this.create(html[i]));
1127                                 }
1128                                 else if (this.elem(html)) {
1129                                         elem = html;
1130                                 }
1131                                 else if (html.charCodeAt(0) === 60) {
1132                                         elem = this.parse(html);
1133                                 }
1134                                 else {
1135                                         elem = document.createElement(html);
1136                                 }
1137
1138                                 if (!elem)
1139                                         return null;
1140
1141                                 this.attr(elem, attr);
1142                                 this.append(elem, data);
1143
1144                                 return elem;
1145                         },
1146
1147                         registry: {},
1148
1149                         data: function(node, key, val) {
1150                                 var id = node.getAttribute('data-idref');
1151
1152                                 /* clear all data */
1153                                 if (arguments.length > 1 && key == null) {
1154                                         if (id != null) {
1155                                                 node.removeAttribute('data-idref');
1156                                                 val = this.registry[id]
1157                                                 delete this.registry[id];
1158                                                 return val;
1159                                         }
1160
1161                                         return null;
1162                                 }
1163
1164                                 /* clear a key */
1165                                 else if (arguments.length > 2 && key != null && val == null) {
1166                                         if (id != null) {
1167                                                 val = this.registry[id][key];
1168                                                 delete this.registry[id][key];
1169                                                 return val;
1170                                         }
1171
1172                                         return null;
1173                                 }
1174
1175                                 /* set a key */
1176                                 else if (arguments.length > 2 && key != null && val != null) {
1177                                         if (id == null) {
1178                                                 do { id = Math.floor(Math.random() * 0xffffffff).toString(16) }
1179                                                 while (this.registry.hasOwnProperty(id));
1180
1181                                                 node.setAttribute('data-idref', id);
1182                                                 this.registry[id] = {};
1183                                         }
1184
1185                                         return (this.registry[id][key] = val);
1186                                 }
1187
1188                                 /* get all data */
1189                                 else if (arguments.length == 1) {
1190                                         if (id != null)
1191                                                 return this.registry[id];
1192
1193                                         return null;
1194                                 }
1195
1196                                 /* get a key */
1197                                 else if (arguments.length == 2) {
1198                                         if (id != null)
1199                                                 return this.registry[id][key];
1200                                 }
1201
1202                                 return null;
1203                         },
1204
1205                         bindClassInstance: function(node, inst) {
1206                                 if (!(inst instanceof Class))
1207                                         L.error('TypeError', 'Argument must be a class instance');
1208
1209                                 return this.data(node, '_class', inst);
1210                         },
1211
1212                         findClassInstance: function(node) {
1213                                 var inst = null;
1214
1215                                 do {
1216                                         inst = this.data(node, '_class');
1217                                         node = node.parentNode;
1218                                 }
1219                                 while (!(inst instanceof Class) && node != null);
1220
1221                                 return inst;
1222                         },
1223
1224                         callClassMethod: function(node, method /*, ... */) {
1225                                 var inst = this.findClassInstance(node);
1226
1227                                 if (inst == null || typeof(inst[method]) != 'function')
1228                                         return null;
1229
1230                                 return inst[method].apply(inst, inst.varargs(arguments, 2));
1231                         },
1232
1233                         isEmpty: function(node, ignoreFn) {
1234                                 for (var child = node.firstElementChild; child != null; child = child.nextElementSibling)
1235                                         if (!child.classList.contains('hidden') && (!ignoreFn || !ignoreFn(child)))
1236                                                 return false;
1237
1238                                 return true;
1239                         }
1240                 }),
1241
1242                 Poll: Poll,
1243                 Class: Class,
1244                 Request: Request,
1245
1246                 view: Class.extend({
1247                         __name__: 'LuCI.View',
1248
1249                         __init__: function() {
1250                                 var vp = document.getElementById('view');
1251
1252                                 L.dom.content(vp, E('div', { 'class': 'spinning' }, _('Loading view…')));
1253
1254                                 return Promise.resolve(this.load())
1255                                         .then(L.bind(this.render, this))
1256                                         .then(L.bind(function(nodes) {
1257                                                 var vp = document.getElementById('view');
1258
1259                                                 L.dom.content(vp, nodes);
1260                                                 L.dom.append(vp, this.addFooter());
1261                                         }, this)).catch(L.error);
1262                         },
1263
1264                         load: function() {},
1265                         render: function() {},
1266
1267                         handleSave: function(ev) {
1268                                 var tasks = [];
1269
1270                                 document.getElementById('maincontent')
1271                                         .querySelectorAll('.cbi-map').forEach(function(map) {
1272                                                 tasks.push(L.dom.callClassMethod(map, 'save'));
1273                                         });
1274
1275                                 return Promise.all(tasks);
1276                         },
1277
1278                         handleSaveApply: function(ev) {
1279                                 return this.handleSave(ev).then(function() {
1280                                         L.ui.changes.apply(true);
1281                                 });
1282                         },
1283
1284                         handleReset: function(ev) {
1285                                 var tasks = [];
1286
1287                                 document.getElementById('maincontent')
1288                                         .querySelectorAll('.cbi-map').forEach(function(map) {
1289                                                 tasks.push(L.dom.callClassMethod(map, 'reset'));
1290                                         });
1291
1292                                 return Promise.all(tasks);
1293                         },
1294
1295                         addFooter: function() {
1296                                 var footer = E([]),
1297                                     mc = document.getElementById('maincontent');
1298
1299                                 if (mc.querySelector('.cbi-map')) {
1300                                         footer.appendChild(E('div', { 'class': 'cbi-page-actions' }, [
1301                                                 E('input', {
1302                                                         'class': 'cbi-button cbi-button-apply',
1303                                                         'type': 'button',
1304                                                         'value': _('Save & Apply'),
1305                                                         'click': L.bind(this.handleSaveApply, this)
1306                                                 }), ' ',
1307                                                 E('input', {
1308                                                         'class': 'cbi-button cbi-button-save',
1309                                                         'type': 'submit',
1310                                                         'value': _('Save'),
1311                                                         'click': L.bind(this.handleSave, this)
1312                                                 }), ' ',
1313                                                 E('input', {
1314                                                         'class': 'cbi-button cbi-button-reset',
1315                                                         'type': 'button',
1316                                                         'value': _('Reset'),
1317                                                         'click': L.bind(this.handleReset, this)
1318                                                 })
1319                                         ]));
1320                                 }
1321
1322                                 return footer;
1323                         }
1324                 })
1325         });
1326
1327         var XHR = Class.extend({
1328                 __name__: 'LuCI.XHR',
1329                 __init__: function() {
1330                         if (window.console && console.debug)
1331                                 console.debug('Direct use XHR() is deprecated, please use L.Request instead');
1332                 },
1333
1334                 _response: function(cb, res, json, duration) {
1335                         if (this.active)
1336                                 cb(res, json, duration);
1337                         delete this.active;
1338                 },
1339
1340                 get: function(url, data, callback, timeout) {
1341                         this.active = true;
1342                         L.get(url, data, this._response.bind(this, callback), timeout);
1343                 },
1344
1345                 post: function(url, data, callback, timeout) {
1346                         this.active = true;
1347                         L.post(url, data, this._response.bind(this, callback), timeout);
1348                 },
1349
1350                 cancel: function() { delete this.active },
1351                 busy: function() { return (this.active === true) },
1352                 abort: function() {},
1353                 send_form: function() { L.error('InternalError', 'Not implemented') },
1354         });
1355
1356         XHR.get = function() { return window.L.get.apply(window.L, arguments) };
1357         XHR.post = function() { return window.L.post.apply(window.L, arguments) };
1358         XHR.poll = function() { return window.L.poll.apply(window.L, arguments) };
1359         XHR.stop = Request.poll.remove.bind(Request.poll);
1360         XHR.halt = Request.poll.stop.bind(Request.poll);
1361         XHR.run = Request.poll.start.bind(Request.poll);
1362         XHR.running = Request.poll.active.bind(Request.poll);
1363
1364         window.XHR = XHR;
1365         window.LuCI = LuCI;
1366 })(window, document);