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