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 ('progress' in opt && 'upload' in opt.xhr)
 382                                         opt.xhr.upload.addEventListener('progress', opt.progress);
 383
 384                                 if (contenttype != null)
 385                                         opt.xhr.setRequestHeader('Content-Type', contenttype);
 386
 387                                 try {
 388                                         opt.xhr.send(content);
 389                                 }
 390                                 catch (e) {
 391                                         rejectFn.call(opt, e);
 392                                 }
 393                         });
 394                 },
 395
 396                 handleReadyStateChange: function(resolveFn, rejectFn, ev) {
 397                         var xhr = this.xhr;
 398
 399                         if (xhr.readyState !== 4)
 400                                 return;
 401
 402                         if (xhr.status === 0 && xhr.statusText === '') {
 403                                 rejectFn.call(this, new Error('XHR request aborted by browser'));
 404                         }
 405                         else {
 406                                 var response = new Response(
 407                                         xhr, xhr.responseURL || this.url, Date.now() - this.start);
 408
 409                                 Promise.all(Request.interceptors.map(function(fn) { return fn(response) }))
 410                                         .then(resolveFn.bind(this, response))
 411                                         .catch(rejectFn.bind(this));
 412                         }
 413                 },
 414
 415                 get: function(url, options) {
 416                         return this.request(url, Object.assign({ method: 'GET' }, options));
 417                 },
 418
 419                 post: function(url, data, options) {
 420                         return this.request(url, Object.assign({ method: 'POST', content: data }, options));
 421                 },
 422
 423                 addInterceptor: function(interceptorFn) {
 424                         if (typeof(interceptorFn) == 'function')
 425                                 this.interceptors.push(interceptorFn);
 426                         return interceptorFn;
 427                 },
 428
 429                 removeInterceptor: function(interceptorFn) {
 430                         var oldlen = this.interceptors.length, i = oldlen;
 431                         while (i--)
 432                                 if (this.interceptors[i] === interceptorFn)
 433                                         this.interceptors.splice(i, 1);
 434                         return (this.interceptors.length < oldlen);
 435                 },
 436
 437                 poll: {
 438                         add: function(interval, url, options, callback) {
 439                                 if (isNaN(interval) || interval <= 0)
 440                                         throw new TypeError('Invalid poll interval');
 441
 442                                 var ival = interval >>> 0,
 443                                     opts = Object.assign({}, options, { timeout: ival * 1000 - 5 });
 444
 445                                 return Poll.add(function() {
 446                                         return Request.request(url, options).then(function(res) {
 447                                                 if (!Poll.active())
 448                                                         return;
 449
 450                                                 try {
 451                                                         callback(res, res.json(), res.duration);
 452                                                 }
 453                                                 catch (err) {
 454                                                         callback(res, null, res.duration);
 455                                                 }
 456                                         });
 457                                 }, ival);
 458                         },
 459
 460                         remove: function(entry) { return Poll.remove(entry) },
 461                         start: function() { return Poll.start() },
 462                         stop: function() { return Poll.stop() },
 463                         active: function() { return Poll.active() }
 464                 }
 465         });
 466
 467         var Poll = Class.singleton({
 468                 __name__: 'LuCI.Poll',
 469
 470                 queue: [],
 471
 472                 add: function(fn, interval) {
 473                         if (interval == null || interval <= 0)
 474                                 interval = window.L ? window.L.env.pollinterval : null;
 475
 476                         if (isNaN(interval) || typeof(fn) != 'function')
 477                                 throw new TypeError('Invalid argument to LuCI.Poll.add()');
 478
 479                         for (var i = 0; i < this.queue.length; i++)
 480                                 if (this.queue[i].fn === fn)
 481                                         return false;
 482
 483                         var e = {
 484                                 r: true,
 485                                 i: interval >>> 0,
 486                                 fn: fn
 487                         };
 488
 489                         this.queue.push(e);
 490
 491                         if (this.tick != null && !this.active())
 492                                 this.start();
 493
 494                         return true;
 495                 },
 496
 497                 remove: function(fn) {
 498                         if (typeof(fn) != 'function')
 499                                 throw new TypeError('Invalid argument to LuCI.Poll.remove()');
 500
 501                         var len = this.queue.length;
 502
 503                         for (var i = len; i > 0; i--)
 504                                 if (this.queue[i-1].fn === fn)
 505                                         this.queue.splice(i-1, 1);
 506
 507                         if (!this.queue.length && this.stop())
 508                                 this.tick = 0;
 509
 510                         return (this.queue.length != len);
 511                 },
 512
 513                 start: function() {
 514                         if (this.active())
 515                                 return false;
 516
 517                         this.tick = 0;
 518
 519                         if (this.queue.length) {
 520                                 this.timer = window.setInterval(this.step, 1000);
 521                                 this.step();
 522                                 document.dispatchEvent(new CustomEvent('poll-start'));
 523                         }
 524
 525                         return true;
 526                 },
 527
 528                 stop: function() {
 529                         if (!this.active())
 530                                 return false;
 531
 532                         document.dispatchEvent(new CustomEvent('poll-stop'));
 533                         window.clearInterval(this.timer);
 534                         delete this.timer;
 535                         delete this.tick;
 536                         return true;
 537                 },
 538
 539                 step: function() {
 540                         for (var i = 0, e = null; (e = Poll.queue[i]) != null; i++) {
 541                                 if ((Poll.tick % e.i) != 0)
 542                                         continue;
 543
 544                                 if (!e.r)
 545                                         continue;
 546
 547                                 e.r = false;
 548
 549                                 Promise.resolve(e.fn()).finally((function() { this.r = true }).bind(e));
 550                         }
 551
 552                         Poll.tick = (Poll.tick + 1) % Math.pow(2, 32);
 553                 },
 554
 555                 active: function() {
 556                         return (this.timer != null);
 557                 }
 558         });
 559
 560
 561         var dummyElem = null,
 562             domParser = null,
 563             originalCBIInit = null,
 564             rpcBaseURL = null,
 565             sysFeatures = null,
 566             classes = {};
 567
 568         var LuCI = Class.extend({
 569                 __name__: 'LuCI',
 570                 __init__: function(env) {
 571
 572                         document.querySelectorAll('script[src*="/luci.js"]').forEach(function(s) {
 573                                 if (env.base_url == null || env.base_url == '')
 574                                         env.base_url = s.getAttribute('src').replace(/\/luci\.js(?:\?v=[^?]+)?$/, '');
 575                         });
 576
 577                         if (env.base_url == null)
 578                                 this.error('InternalError', 'Cannot find url of luci.js');
 579
 580                         Object.assign(this.env, env);
 581
 582                         document.addEventListener('poll-start', function(ev) {
 583                                 document.querySelectorAll('[id^="xhr_poll_status"]').forEach(function(e) {
 584                                         e.style.display = (e.id == 'xhr_poll_status_off') ? 'none' : '';
 585                                 });
 586                         });
 587
 588                         document.addEventListener('poll-stop', function(ev) {
 589                                 document.querySelectorAll('[id^="xhr_poll_status"]').forEach(function(e) {
 590                                         e.style.display = (e.id == 'xhr_poll_status_on') ? 'none' : '';
 591                                 });
 592                         });
 593
 594                         var domReady = new Promise(function(resolveFn, rejectFn) {
 595                                 document.addEventListener('DOMContentLoaded', resolveFn);
 596                         });
 597
 598                         Promise.all([
 599                                 domReady,
 600                                 this.require('ui'),
 601                                 this.require('rpc'),
 602                                 this.require('form'),
 603                                 this.probeRPCBaseURL()
 604                         ]).then(this.setupDOM.bind(this)).catch(this.error);
 605
 606                         originalCBIInit = window.cbi_init;
 607                         window.cbi_init = function() {};
 608                 },
 609
 610                 raise: function(type, fmt /*, ...*/) {
 611                         var e = null,
 612                             msg = fmt ? String.prototype.format.apply(fmt, this.varargs(arguments, 2)) : null,
 613                             stack = null;
 614
 615                         if (type instanceof Error) {
 616                                 e = type;
 617                                 stack = (e.stack || '').split(/\n/);
 618
 619                                 if (msg)
 620                                         e.message = msg + ': ' + e.message;
 621                         }
 622                         else {
 623                                 e = new (window[type || 'Error'] || Error)(msg || 'Unspecified error');
 624                                 e.name = type || 'Error';
 625                         }
 626
 627                         if (window.console && console.debug)
 628                                 console.debug(e);
 629
 630                         throw e;
 631                 },
 632
 633                 error: function(type, fmt /*, ...*/) {
 634                         try {
 635                                 L.raise.apply(L, Array.prototype.slice.call(arguments));
 636                         }
 637                         catch (e) {
 638                                 var stack = (e.stack || '').split(/\n/).map(function(frame) {
 639                                         frame = frame.replace(/(.*?)@(.+):(\d+):(\d+)/g, 'at $1 ($2:$3:$4)').trim();
 640                                         return frame ? '  ' + frame : '';
 641                                 });
 642
 643                                 if (!/^  at /.test(stack[0]))
 644                                         stack.shift();
 645
 646                                 if (/\braise /.test(stack[0]))
 647                                         stack.shift();
 648
 649                                 if (/\berror /.test(stack[0]))
 650                                         stack.shift();
 651
 652                                 stack = stack.length ? '\n' + stack.join('\n') : '';
 653
 654                                 if (L.ui)
 655                                         L.ui.showModal(e.name || _('Runtime error'),
 656                                                 E('pre', { 'class': 'alert-message error' }, e.message + stack));
 657                                 else
 658                                         L.dom.content(document.querySelector('#maincontent'),
 659                                                 E('pre', { 'class': 'alert-message error' }, e + stack));
 660
 661                                 throw e;
 662                         }
 663                 },
 664
 665                 bind: function(fn, self /*, ... */) {
 666                         return Function.prototype.bind.apply(fn, this.varargs(arguments, 2, self));
 667                 },
 668
 669                 /* Class require */
 670                 require: function(name, from) {
 671                         var L = this, url = null, from = from || [];
 672
 673                         /* Class already loaded */
 674                         if (classes[name] != null) {
 675                                 /* Circular dependency */
 676                                 if (from.indexOf(name) != -1)
 677                                         L.raise('DependencyError',
 678                                                 'Circular dependency: class "%s" depends on "%s"',
 679                                                 name, from.join('" which depends on "'));
 680
 681                                 return classes[name];
 682                         }
 683
 684                         url = '%s/%s.js'.format(L.env.base_url, name.replace(/\./g, '/'));
 685                         from = [ name ].concat(from);
 686
 687                         var compileClass = function(res) {
 688                                 if (!res.ok)
 689                                         L.raise('NetworkError',
 690                                                 'HTTP error %d while loading class file "%s"', res.status, url);
 691
 692                                 var source = res.text(),
 693                                     requirematch = /^require[ \t]+(\S+)(?:[ \t]+as[ \t]+([a-zA-Z_]\S*))?$/,
 694                                     strictmatch = /^use[ \t]+strict$/,
 695                                     depends = [],
 696                                     args = '';
 697
 698                                 /* find require statements in source */
 699                                 for (var i = 0, off = -1, quote = -1, esc = false; i < source.length; i++) {
 700                                         var chr = source.charCodeAt(i);
 701
 702                                         if (esc) {
 703                                                 esc = false;
 704                                         }
 705                                         else if (chr == 92) {
 706                                                 esc = true;
 707                                         }
 708                                         else if (chr == quote) {
 709                                                 var s = source.substring(off, i),
 710                                                     m = requirematch.exec(s);
 711
 712                                                 if (m) {
 713                                                         var dep = m[1], as = m[2] || dep.replace(/[^a-zA-Z0-9_]/g, '_');
 714                                                         depends.push(L.require(dep, from));
 715                                                         args += ', ' + as;
 716                                                 }
 717                                                 else if (!strictmatch.exec(s)) {
 718                                                         break;
 719                                                 }
 720
 721                                                 off = -1;
 722                                                 quote = -1;
 723                                         }
 724                                         else if (quote == -1 && (chr == 34 || chr == 39)) {
 725                                                 off = i + 1;
 726                                                 quote = chr;
 727                                         }
 728                                 }
 729
 730                                 /* load dependencies and instantiate class */
 731                                 return Promise.all(depends).then(function(instances) {
 732                                         var _factory, _class;
 733
 734                                         try {
 735                                                 _factory = eval(
 736                                                         '(function(window, document, L%s) { %s })\n\n//# sourceURL=%s\n'
 737                                                                 .format(args, source, res.url));
 738                                         }
 739                                         catch (error) {
 740                                                 L.raise('SyntaxError', '%s\n  in %s:%s',
 741                                                         error.message, res.url, error.lineNumber || '?');
 742                                         }
 743
 744                                         _factory.displayName = toCamelCase(name + 'ClassFactory');
 745                                         _class = _factory.apply(_factory, [window, document, L].concat(instances));
 746
 747                                         if (!Class.isSubclass(_class))
 748                                             L.error('TypeError', '"%s" factory yields invalid constructor', name);
 749
 750                                         if (_class.displayName == 'AnonymousClass')
 751                                                 _class.displayName = toCamelCase(name + 'Class');
 752
 753                                         var ptr = Object.getPrototypeOf(L),
 754                                             parts = name.split(/\./),
 755                                             instance = new _class();
 756
 757                                         for (var i = 0; ptr && i < parts.length - 1; i++)
 758                                                 ptr = ptr[parts[i]];
 759
 760                                         if (ptr)
 761                                                 ptr[parts[i]] = instance;
 762
 763                                         classes[name] = instance;
 764
 765                                         return instance;
 766                                 });
 767                         };
 768
 769                         /* Request class file */
 770                         classes[name] = Request.get(url, { cache: true }).then(compileClass);
 771
 772                         return classes[name];
 773                 },
 774
 775                 /* DOM setup */
 776                 probeRPCBaseURL: function() {
 777                         if (rpcBaseURL == null) {
 778                                 try {
 779                                         rpcBaseURL = window.sessionStorage.getItem('rpcBaseURL');
 780                                 }
 781                                 catch (e) { }
 782                         }
 783
 784                         if (rpcBaseURL == null) {
 785                                 var rpcFallbackURL = this.url('admin/ubus');
 786
 787                                 rpcBaseURL = Request.get('/ubus/').then(function(res) {
 788                                         return (rpcBaseURL = (res.status == 400) ? '/ubus/' : rpcFallbackURL);
 789                                 }, function() {
 790                                         return (rpcBaseURL = rpcFallbackURL);
 791                                 }).then(function(url) {
 792                                         try {
 793                                                 window.sessionStorage.setItem('rpcBaseURL', url);
 794                                         }
 795                                         catch (e) { }
 796
 797                                         return url;
 798                                 });
 799                         }
 800
 801                         return Promise.resolve(rpcBaseURL);
 802                 },
 803
 804                 probeSystemFeatures: function() {
 805                         if (sysFeatures == null) {
 806                                 try {
 807                                         sysFeatures = JSON.parse(window.sessionStorage.getItem('sysFeatures'));
 808                                 }
 809                                 catch (e) {}
 810                         }
 811
 812                         if (!this.isObject(sysFeatures)) {
 813                                 sysFeatures = classes.rpc.declare({
 814                                         object: 'luci',
 815                                         method: 'getFeatures',
 816                                         expect: { '': {} }
 817                                 })().then(function(features) {
 818                                         try {
 819                                                 window.sessionStorage.setItem('sysFeatures', JSON.stringify(features));
 820                                         }
 821                                         catch (e) {}
 822
 823                                         sysFeatures = features;
 824
 825                                         return features;
 826                                 });
 827                         }
 828
 829                         return Promise.resolve(sysFeatures);
 830                 },
 831
 832                 hasSystemFeature: function() {
 833                         var ft = sysFeatures[arguments[0]];
 834
 835                         if (arguments.length == 2)
 836                                 return this.isObject(ft) ? ft[arguments[1]] : null;
 837
 838                         return (ft != null && ft != false);
 839                 },
 840
 841                 setupDOM: function(res) {
 842                         var domEv = res[0],
 843                             uiClass = res[1],
 844                             rpcClass = res[2],
 845                             formClass = res[3],
 846                             rpcBaseURL = res[4];
 847
 848                         rpcClass.setBaseURL(rpcBaseURL);
 849
 850                         Request.addInterceptor(function(res) {
 851                                 if (res.status != 403 || res.headers.get('X-LuCI-Login-Required') != 'yes')
 852                                         return;
 853
 854                                 Poll.stop();
 855
 856                                 L.ui.showModal(_('Session expired'), [
 857                                         E('div', { class: 'alert-message warning' },
 858                                                 _('A new login is required since the authentication session expired.')),
 859                                         E('div', { class: 'right' },
 860                                                 E('div', {
 861                                                         class: 'btn primary',
 862                                                         click: function() {
 863                                                                 var loc = window.location;
 864                                                                 window.location = loc.protocol + '//' + loc.host + loc.pathname + loc.search;
 865                                                         }
 866                                                 }, _('To login…')))
 867                                 ]);
 868
 869                                 throw 'Session expired';
 870                         });
 871
 872                         return this.probeSystemFeatures().finally(this.initDOM);
 873                 },
 874
 875                 initDOM: function() {
 876                         originalCBIInit();
 877                         Poll.start();
 878                         document.dispatchEvent(new CustomEvent('luci-loaded'));
 879                 },
 880
 881                 env: {},
 882
 883                 /* URL construction helpers */
 884                 path: function(prefix, parts) {
 885                         var url = [ prefix || '' ];
 886
 887                         for (var i = 0; i < parts.length; i++)
 888                                 if (/^(?:[a-zA-Z0-9_.%,;-]+\/)*[a-zA-Z0-9_.%,;-]+$/.test(parts[i]))
 889                                         url.push('/', parts[i]);
 890
 891                         if (url.length === 1)
 892                                 url.push('/');
 893
 894                         return url.join('');
 895                 },
 896
 897                 url: function() {
 898                         return this.path(this.env.scriptname, arguments);
 899                 },
 900
 901                 resource: function() {
 902                         return this.path(this.env.resource, arguments);
 903                 },
 904
 905                 location: function() {
 906                         return this.path(this.env.scriptname, this.env.requestpath);
 907                 },
 908
 909
 910                 /* Data helpers */
 911                 isObject: function(val) {
 912                         return (val != null && typeof(val) == 'object');
 913                 },
 914
 915                 sortedKeys: function(obj, key, sortmode) {
 916                         if (obj == null || typeof(obj) != 'object')
 917                                 return [];
 918
 919                         return Object.keys(obj).map(function(e) {
 920                                 var v = (key != null) ? obj[e][key] : e;
 921
 922                                 switch (sortmode) {
 923                                 case 'addr':
 924                                         v = (v != null) ? v.replace(/(?:^|[.:])([0-9a-fA-F]{1,4})/g,
 925                                                 function(m0, m1) { return ('000' + m1.toLowerCase()).substr(-4) }) : null;
 926                                         break;
 927
 928                                 case 'num':
 929                                         v = (v != null) ? +v : null;
 930                                         break;
 931                                 }
 932
 933                                 return [ e, v ];
 934                         }).filter(function(e) {
 935                                 return (e[1] != null);
 936                         }).sort(function(a, b) {
 937                                 return (a[1] > b[1]);
 938                         }).map(function(e) {
 939                                 return e[0];
 940                         });
 941                 },
 942
 943                 toArray: function(val) {
 944                         if (val == null)
 945                                 return [];
 946                         else if (Array.isArray(val))
 947                                 return val;
 948                         else if (typeof(val) == 'object')
 949                                 return [ val ];
 950
 951                         var s = String(val).trim();
 952
 953                         if (s == '')
 954                                 return [];
 955
 956                         return s.split(/\s+/);
 957                 },
 958
 959
 960                 /* HTTP resource fetching */
 961                 get: function(url, args, cb) {
 962                         return this.poll(null, url, args, cb, false);
 963                 },
 964
 965                 post: function(url, args, cb) {
 966                         return this.poll(null, url, args, cb, true);
 967                 },
 968
 969                 poll: function(interval, url, args, cb, post) {
 970                         if (interval !== null && interval <= 0)
 971                                 interval = this.env.pollinterval;
 972
 973                         var data = post ? { token: this.env.token } : null,
 974                             method = post ? 'POST' : 'GET';
 975
 976                         if (!/^(?:\/|\S+:\/\/)/.test(url))
 977                                 url = this.url(url);
 978
 979                         if (args != null)
 980                                 data = Object.assign(data || {}, args);
 981
 982                         if (interval !== null)
 983                                 return Request.poll.add(interval, url, { method: method, query: data }, cb);
 984                         else
 985                                 return Request.request(url, { method: method, query: data })
 986                                         .then(function(res) {
 987                                                 var json = null;
 988                                                 if (/^application\/json\b/.test(res.headers.get('Content-Type')))
 989                                                         try { json = res.json() } catch(e) {}
 990                                                 cb(res.xhr, json, res.duration);
 991                                         });
 992                 },
 993
 994                 stop: function(entry) { return Poll.remove(entry) },
 995                 halt: function() { return Poll.stop() },
 996                 run: function() { return Poll.start() },
 997
 998                 /* DOM manipulation */
 999                 dom: Class.singleton({
1000                         __name__: 'LuCI.DOM',
1001
1002                         elem: function(e) {
1003                                 return (e != null && typeof(e) == 'object' && 'nodeType' in e);
1004                         },
1005
1006                         parse: function(s) {
1007                                 var elem;
1008
1009                                 try {
1010                                         domParser = domParser || new DOMParser();
1011                                         elem = domParser.parseFromString(s, 'text/html').body.firstChild;
1012                                 }
1013                                 catch(e) {}
1014
1015                                 if (!elem) {
1016                                         try {
1017                                                 dummyElem = dummyElem || document.createElement('div');
1018                                                 dummyElem.innerHTML = s;
1019                                                 elem = dummyElem.firstChild;
1020                                         }
1021                                         catch (e) {}
1022                                 }
1023
1024                                 return elem || null;
1025                         },
1026
1027                         matches: function(node, selector) {
1028                                 var m = this.elem(node) ? node.matches || node.msMatchesSelector : null;
1029                                 return m ? m.call(node, selector) : false;
1030                         },
1031
1032                         parent: function(node, selector) {
1033                                 if (this.elem(node) && node.closest)
1034                                         return node.closest(selector);
1035
1036                                 while (this.elem(node))
1037                                         if (this.matches(node, selector))
1038                                                 return node;
1039                                         else
1040                                                 node = node.parentNode;
1041
1042                                 return null;
1043                         },
1044
1045                         append: function(node, children) {
1046                                 if (!this.elem(node))
1047                                         return null;
1048
1049                                 if (Array.isArray(children)) {
1050                                         for (var i = 0; i < children.length; i++)
1051                                                 if (this.elem(children[i]))
1052                                                         node.appendChild(children[i]);
1053                                                 else if (children !== null && children !== undefined)
1054                                                         node.appendChild(document.createTextNode('' + children[i]));
1055
1056                                         return node.lastChild;
1057                                 }
1058                                 else if (typeof(children) === 'function') {
1059                                         return this.append(node, children(node));
1060                                 }
1061                                 else if (this.elem(children)) {
1062                                         return node.appendChild(children);
1063                                 }
1064                                 else if (children !== null && children !== undefined) {
1065                                         node.innerHTML = '' + children;
1066                                         return node.lastChild;
1067                                 }
1068
1069                                 return null;
1070                         },
1071
1072                         content: function(node, children) {
1073                                 if (!this.elem(node))
1074                                         return null;
1075
1076                                 var dataNodes = node.querySelectorAll('[data-idref]');
1077
1078                                 for (var i = 0; i < dataNodes.length; i++)
1079                                         delete this.registry[dataNodes[i].getAttribute('data-idref')];
1080
1081                                 while (node.firstChild)
1082                                         node.removeChild(node.firstChild);
1083
1084                                 return this.append(node, children);
1085                         },
1086
1087                         attr: function(node, key, val) {
1088                                 if (!this.elem(node))
1089                                         return null;
1090
1091                                 var attr = null;
1092
1093                                 if (typeof(key) === 'object' && key !== null)
1094                                         attr = key;
1095                                 else if (typeof(key) === 'string')
1096                                         attr = {}, attr[key] = val;
1097
1098                                 for (key in attr) {
1099                                         if (!attr.hasOwnProperty(key) || attr[key] == null)
1100                                                 continue;
1101
1102                                         switch (typeof(attr[key])) {
1103                                         case 'function':
1104                                                 node.addEventListener(key, attr[key]);
1105                                                 break;
1106
1107                                         case 'object':
1108                                                 node.setAttribute(key, JSON.stringify(attr[key]));
1109                                                 break;
1110
1111                                         default:
1112                                                 node.setAttribute(key, attr[key]);
1113                                         }
1114                                 }
1115                         },
1116
1117                         create: function() {
1118                                 var html = arguments[0],
1119                                     attr = arguments[1],
1120                                     data = arguments[2],
1121                                     elem;
1122
1123                                 if (!(attr instanceof Object) || Array.isArray(attr))
1124                                         data = attr, attr = null;
1125
1126                                 if (Array.isArray(html)) {
1127                                         elem = document.createDocumentFragment();
1128                                         for (var i = 0; i < html.length; i++)
1129                                                 elem.appendChild(this.create(html[i]));
1130                                 }
1131                                 else if (this.elem(html)) {
1132                                         elem = html;
1133                                 }
1134                                 else if (html.charCodeAt(0) === 60) {
1135                                         elem = this.parse(html);
1136                                 }
1137                                 else {
1138                                         elem = document.createElement(html);
1139                                 }
1140
1141                                 if (!elem)
1142                                         return null;
1143
1144                                 this.attr(elem, attr);
1145                                 this.append(elem, data);
1146
1147                                 return elem;
1148                         },
1149
1150                         registry: {},
1151
1152                         data: function(node, key, val) {
1153                                 var id = node.getAttribute('data-idref');
1154
1155                                 /* clear all data */
1156                                 if (arguments.length > 1 && key == null) {
1157                                         if (id != null) {
1158                                                 node.removeAttribute('data-idref');
1159                                                 val = this.registry[id]
1160                                                 delete this.registry[id];
1161                                                 return val;
1162                                         }
1163
1164                                         return null;
1165                                 }
1166
1167                                 /* clear a key */
1168                                 else if (arguments.length > 2 && key != null && val == null) {
1169                                         if (id != null) {
1170                                                 val = this.registry[id][key];
1171                                                 delete this.registry[id][key];
1172                                                 return val;
1173                                         }
1174
1175                                         return null;
1176                                 }
1177
1178                                 /* set a key */
1179                                 else if (arguments.length > 2 && key != null && val != null) {
1180                                         if (id == null) {
1181                                                 do { id = Math.floor(Math.random() * 0xffffffff).toString(16) }
1182                                                 while (this.registry.hasOwnProperty(id));
1183
1184                                                 node.setAttribute('data-idref', id);
1185                                                 this.registry[id] = {};
1186                                         }
1187
1188                                         return (this.registry[id][key] = val);
1189                                 }
1190
1191                                 /* get all data */
1192                                 else if (arguments.length == 1) {
1193                                         if (id != null)
1194                                                 return this.registry[id];
1195
1196                                         return null;
1197                                 }
1198
1199                                 /* get a key */
1200                                 else if (arguments.length == 2) {
1201                                         if (id != null)
1202                                                 return this.registry[id][key];
1203                                 }
1204
1205                                 return null;
1206                         },
1207
1208                         bindClassInstance: function(node, inst) {
1209                                 if (!(inst instanceof Class))
1210                                         L.error('TypeError', 'Argument must be a class instance');
1211
1212                                 return this.data(node, '_class', inst);
1213                         },
1214
1215                         findClassInstance: function(node) {
1216                                 var inst = null;
1217
1218                                 do {
1219                                         inst = this.data(node, '_class');
1220                                         node = node.parentNode;
1221                                 }
1222                                 while (!(inst instanceof Class) && node != null);
1223
1224                                 return inst;
1225                         },
1226
1227                         callClassMethod: function(node, method /*, ... */) {
1228                                 var inst = this.findClassInstance(node);
1229
1230                                 if (inst == null || typeof(inst[method]) != 'function')
1231                                         return null;
1232
1233                                 return inst[method].apply(inst, inst.varargs(arguments, 2));
1234                         },
1235
1236                         isEmpty: function(node, ignoreFn) {
1237                                 for (var child = node.firstElementChild; child != null; child = child.nextElementSibling)
1238                                         if (!child.classList.contains('hidden') && (!ignoreFn || !ignoreFn(child)))
1239                                                 return false;
1240
1241                                 return true;
1242                         }
1243                 }),
1244
1245                 Poll: Poll,
1246                 Class: Class,
1247                 Request: Request,
1248
1249                 view: Class.extend({
1250                         __name__: 'LuCI.View',
1251
1252                         __init__: function() {
1253                                 var vp = document.getElementById('view');
1254
1255                                 L.dom.content(vp, E('div', { 'class': 'spinning' }, _('Loading view…')));
1256
1257                                 return Promise.resolve(this.load())
1258                                         .then(L.bind(this.render, this))
1259                                         .then(L.bind(function(nodes) {
1260                                                 var vp = document.getElementById('view');
1261
1262                                                 L.dom.content(vp, nodes);
1263                                                 L.dom.append(vp, this.addFooter());
1264                                         }, this)).catch(L.error);
1265                         },
1266
1267                         load: function() {},
1268                         render: function() {},
1269
1270                         handleSave: function(ev) {
1271                                 var tasks = [];
1272
1273                                 document.getElementById('maincontent')
1274                                         .querySelectorAll('.cbi-map').forEach(function(map) {
1275                                                 tasks.push(L.dom.callClassMethod(map, 'save'));
1276                                         });
1277
1278                                 return Promise.all(tasks);
1279                         },
1280
1281                         handleSaveApply: function(ev) {
1282                                 return this.handleSave(ev).then(function() {
1283                                         L.ui.changes.apply(true);
1284                                 });
1285                         },
1286
1287                         handleReset: function(ev) {
1288                                 var tasks = [];
1289
1290                                 document.getElementById('maincontent')
1291                                         .querySelectorAll('.cbi-map').forEach(function(map) {
1292                                                 tasks.push(L.dom.callClassMethod(map, 'reset'));
1293                                         });
1294
1295                                 return Promise.all(tasks);
1296                         },
1297
1298                         addFooter: function() {
1299                                 var footer = E([]),
1300                                     mc = document.getElementById('maincontent');
1301
1302                                 if (mc.querySelector('.cbi-map')) {
1303                                         footer.appendChild(E('div', { 'class': 'cbi-page-actions' }, [
1304                                                 E('input', {
1305                                                         'class': 'cbi-button cbi-button-apply',
1306                                                         'type': 'button',
1307                                                         'value': _('Save & Apply'),
1308                                                         'click': L.bind(this.handleSaveApply, this)
1309                                                 }), ' ',
1310                                                 E('input', {
1311                                                         'class': 'cbi-button cbi-button-save',
1312                                                         'type': 'submit',
1313                                                         'value': _('Save'),
1314                                                         'click': L.bind(this.handleSave, this)
1315                                                 }), ' ',
1316                                                 E('input', {
1317                                                         'class': 'cbi-button cbi-button-reset',
1318                                                         'type': 'button',
1319                                                         'value': _('Reset'),
1320                                                         'click': L.bind(this.handleReset, this)
1321                                                 })
1322                                         ]));
1323                                 }
1324
1325                                 return footer;
1326                         }
1327                 })
1328         });
1329
1330         var XHR = Class.extend({
1331                 __name__: 'LuCI.XHR',
1332                 __init__: function() {
1333                         if (window.console && console.debug)
1334                                 console.debug('Direct use XHR() is deprecated, please use L.Request instead');
1335                 },
1336
1337                 _response: function(cb, res, json, duration) {
1338                         if (this.active)
1339                                 cb(res, json, duration);
1340                         delete this.active;
1341                 },
1342
1343                 get: function(url, data, callback, timeout) {
1344                         this.active = true;
1345                         L.get(url, data, this._response.bind(this, callback), timeout);
1346                 },
1347
1348                 post: function(url, data, callback, timeout) {
1349                         this.active = true;
1350                         L.post(url, data, this._response.bind(this, callback), timeout);
1351                 },
1352
1353                 cancel: function() { delete this.active },
1354                 busy: function() { return (this.active === true) },
1355                 abort: function() {},
1356                 send_form: function() { L.error('InternalError', 'Not implemented') },
1357         });
1358
1359         XHR.get = function() { return window.L.get.apply(window.L, arguments) };
1360         XHR.post = function() { return window.L.post.apply(window.L, arguments) };
1361         XHR.poll = function() { return window.L.poll.apply(window.L, arguments) };
1362         XHR.stop = Request.poll.remove.bind(Request.poll);
1363         XHR.halt = Request.poll.stop.bind(Request.poll);
1364         XHR.run = Request.poll.start.bind(Request.poll);
1365         XHR.running = Request.poll.active.bind(Request.poll);
1366
1367         window.XHR = XHR;
1368         window.LuCI = LuCI;
1369 })(window, document);