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5; 6/** 7 * For jQuery versions less than 3.4.0, this replaces the jQuery.extend 8 * function with the one from jQuery 3.4.0, slightly modified (documented 9 * below) to be compatible with older jQuery versions and browsers. 10 * 11 * This provides the Object.prototype pollution vulnerability fix to Drupal 12 * installations running older jQuery versions, including the versions shipped 13 * with Drupal core and https://www.drupal.org/project/jquery_update. 14 * 15 * @see https://github.com/jquery/jquery/pull/4333 16 */ 17 18(function (jQuery) { 19 20// Do not override jQuery.extend() if the jQuery version is already >=3.4.0. 21var versionParts = jQuery.fn.jquery.split('.'); 22var majorVersion = parseInt(versionParts[0]); 23var minorVersion = parseInt(versionParts[1]); 24var patchVersion = parseInt(versionParts[2]); 25var isPreReleaseVersion = (patchVersion.toString() !== versionParts[2]); 26if ( 27 (majorVersion > 3) || 28 (majorVersion === 3 && minorVersion > 4) || 29 (majorVersion === 3 && minorVersion === 4 && patchVersion > 0) || 30 (majorVersion === 3 && minorVersion === 4 && patchVersion === 0 && !isPreReleaseVersion) 31) { 32 return; 33} 34 35/** 36 * This is almost verbatim copied from jQuery 3.4.0. 37 * 38 * Only two minor changes have been made: 39 * - The call to isFunction() is changed to jQuery.isFunction(). 40 * - The two calls to Array.isArray() is changed to jQuery.isArray(). 41 * 42 * The above two changes ensure compatibility with all older jQuery versions 43 * (1.4.4 - 3.3.1) and older browser versions (e.g., IE8). 44 */ 45jQuery.extend = jQuery.fn.extend = function() { 46 var options, name, src, copy, copyIsArray, clone, 47 target = arguments[ 0 ] || {}, 48 i = 1, 49 length = arguments.length, 50 deep = false; 51 52 // Handle a deep copy situation 53 if ( typeof target === "boolean" ) { 54 deep = target; 55 56 // Skip the boolean and the target 57 target = arguments[ i ] || {}; 58 i++; 59 } 60 61 // Handle case when target is a string or something (possible in deep copy) 62 if ( typeof target !== "object" && !jQuery.isFunction( target ) ) { 63 target = {}; 64 } 65 66 // Extend jQuery itself if only one argument is passed 67 if ( i === length ) { 68 target = this; 69 i--; 70 } 71 72 for ( ; i < length; i++ ) { 73 74 // Only deal with non-null/undefined values 75 if ( ( options = arguments[ i ] ) != null ) { 76 77 // Extend the base object 78 for ( name in options ) { 79 copy = options[ name ]; 80 81 // Prevent Object.prototype pollution 82 // Prevent never-ending loop 83 if ( name === "__proto__" || target === copy ) { 84 continue; 85 } 86 87 // Recurse if we're merging plain objects or arrays 88 if ( deep && copy && ( jQuery.isPlainObject( copy ) || 89 ( copyIsArray = jQuery.isArray( copy ) ) ) ) { 90 src = target[ name ]; 91 92 // Ensure proper type for the source value 93 if ( copyIsArray && !jQuery.isArray( src ) ) { 94 clone = []; 95 } else if ( !copyIsArray && !jQuery.isPlainObject( src ) ) { 96 clone = {}; 97 } else { 98 clone = src; 99 } 100 copyIsArray = false; 101 102 // Never move original objects, clone them 103 target[ name ] = jQuery.extend( deep, clone, copy ); 104 105 // Don't bring in undefined values 106 } else if ( copy !== undefined ) { 107 target[ name ] = copy; 108 } 109 } 110 } 111 } 112 113 // Return the modified object 114 return target; 115}; 116 117})(jQuery); 118; 119/** 120 * For jQuery versions less than 3.5.0, this replaces the jQuery.htmlPrefilter() 121 * function with one that fixes these security vulnerabilities while also 122 * retaining the pre-3.5.0 behavior where it's safe to do so. 123 * - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11022 124 * - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11023 125 * 126 * Additionally, for jQuery versions that do not have a jQuery.htmlPrefilter() 127 * function (1.x prior to 1.12 and 2.x prior to 2.2), this adds it, and 128 * extends the functions that need to call it to do so. 129 * 130 * Drupal core's jQuery version is 1.4.4, but jQuery Update can provide a 131 * different version, so this covers all versions between 1.4.4 and 3.4.1. 132 * The GitHub links in the code comments below link to jQuery 1.5 code, be
132cause 133 * 1.4.4 isn't on GitHub, but the referenced code didn't change from 1.4.4 to 134 * 1.5. 135 */ 136 137(function (jQuery) { 138 139 // Parts of this backport differ by jQuery version. 140 var versionParts = jQuery.fn.jquery.split('.'); 141 var majorVersion = parseInt(versionParts[0]); 142 var minorVersion = parseInt(versionParts[1]); 143 144 // No backport is needed if we're already on jQuery 3.5 or higher. 145 if ( (majorVersion > 3) || (majorVersion === 3 && minorVersion >= 5) ) { 146 return; 147 } 148 149 // Prior to jQuery 3.5, jQuery converted XHTML-style self-closing tags to 150 // their XML equivalent: e.g., "<div />" to "<div></div>". This is 151 // problematic for several reasons, including that it's vulnerable to XSS 152 // attacks. However, since this was jQuery's behavior for many years, many 153 // Drupal modules and jQuery plugins may be relying on it. Therefore, we 154 // preserve that behavior, but for a limited set of tags only, that we believe 155 // to not be vulnerable. This is the set of HTML tags that satisfy all of the 156 // following conditions: 157 // - In DOMPurify's list of HTML tags. If an HTML tag isn't safe enough to 158 // appear in that list, then we don't want to mess with it here either. 159 // @see https://github.com/cure53/DOMPurify/blob/2.0.11/dist/purify.js#L128 160 // - A normal element (not a void, template, text, or foreign element). 161 // @see https://html.spec.whatwg.org/multipage/syntax.html#elements-2 162 // - An element that is still defined by the current HTML specification 163 // (not a deprecated element), because we do not want to rely on how 164 // browsers parse deprecated elements. 165 // @see https://developer.mozilla.org/en-US/docs/Web/HTML/Element 166 // - Not 'html', 'head', or 'body', because this pseudo-XHTML expansion is 167 // designed for fragments, not entire documents. 168 // - Not 'colgroup', because due to an idiosyncrasy of jQuery's original 169 // regular expression, it didn't match on colgroup, and we don't want to 170 // introduce a behavior change for that. 171 var selfClosingTagsToReplace = [ 172 'a', 'abbr', 'address', 'article', 'aside', 'audio', 'b', 'bdi', 'bdo', 173 'blockquote', 'button', 'canvas', 'caption', 'cite', 'code', 'data', 174 'datalist', 'dd', 'del', 'details', 'dfn', 'div', 'dl', 'dt', 'em', 175 'fieldset', 'figcaption', 'figure', 'footer', 'form', 'h1', 'h2', 'h3', 176 'h4', 'h5', 'h6', 'header', 'hgroup', 'i', 'ins', 'kbd', 'label', 'legend', 177 'li', 'main', 'map', 'mark', 'menu', 'meter', 'nav', 'ol', 'optgroup', 178 'option', 'output', 'p', 'picture', 'pre', 'progress', 'q', 'rp', 'rt', 179 'ruby', 's', 'samp', 'section', 'select', 'small', 'source', 'span', 180 'strong', 'sub', 'summary', 'sup', 'table', 'tbody', 'td', 'tfoot', 'th', 181 'thead', 'time', 'tr', 'u', 'ul', 'var', 'video' 182 ]; 183 184 // Define regular expressions for <TAG/> and <TAG ATTRIBUTES/>. Doing this as 185 // two expressions makes it easier to target <a/> without also targeting 186 // every tag that starts with "a". 187 var xhtmlRegExpGroup = '(' + selfClosingTagsToReplace.join('|') + ')'; 188 var whitespace = '[\\x20\\t\\r\\n\\f]'; 189 var rxhtmlTagWithoutSpaceOrAttributes = new RegExp('<' + xhtmlRegExpGroup + '\\/>', 'gi'); 190 var rxhtmlTagWithSpaceAndMaybeAttributes = new RegExp('<' + xhtmlRegExpGroup + '(' + whitespace + '[^>]*)\\/>', 'gi'); 191 192 // jQuery 3.5 also fixed a vulnerability for when </select> appears within 193 // an <option> or <optgroup>, but it did that in local code that we can't 194 // backport directly. Instead, we filter such cases out. To do so, we need to 195 // determine when jQuery would otherwise invoke the vulnerable code, which it 196 // uses this regular expression to determine. The regular expression changed 197 // for version 3.0.0 and changed again for 3.4.0. 198 // @see https://github.com/jquery/jquery/blob/1.5/jquery.js#L4958 199 // @see https://github.com/jquery/jquery/blob/3.0.0/dist/jquery.js#L4584 200 // @see https://github.com/jquery/jquery/blob/3.4.0/dist/jquery.js#L4712 201 var rtagName; 202 if (majorVersion < 3) { 203 rtagName = /<([\w:]+)/; 204 } 205 else if (minorVersion < 4) { 206 rtagName = /<([a-z][^\/\0>\x20\t\r\n\f]+)/i; 207 } 208 else { 209 rtagName = /<([a-z][^\/\0>\x20\t\r\n\f]*)/i; 210 } 211 212 // The regular expression that jQuery uses to determine which self-closing 213 // tags to expand to open and close tags. This is vulnerable, because it 214 // matches all tag names except the few excluded ones. We only use this 215 // expression for determining vulnerability. The expression changed for 216 // version 3, but we only need to check for vulnerability in versions 1 and 2, 217 // so we use the expression from those versions. 218 // @see https://github.com/jquery/jquery/blob/1.5/jquery.js#L4957 219 var rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([\w:]+)[^>]*)\/>/gi; 220 221 jQuery.extend({ 222 htmlPrefilter: function (html) { 223 // This is how jQuery determines the first tag in the HTML. 224 // @see https://github.com/jquery/jquery/blob/1.5/jquery.js#L5521 225 var tag = ( rtagName.exec( html ) || [ "", "" ] )[ 1 ].toLowerCase(); 226
227 // It is not valid HTML for <option> or <optgroup> to have <select> as 228 // either a descendant or sibling, and attempts to inject one can cause 229 // XSS on jQuery versions before 3.5. Since this is invalid HTML and a 230 // possible XSS attack, reject the entire string. 231 // @see https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11023 232 if ((tag === 'option' || tag === 'optgroup') && html.match(/<\/?select/i)) { 233 html = ''; 234 } 235 236 // Retain jQuery's prior to 3.5 conversion of pseudo-XHTML, but for only 237 // the tags in the `selfClosingTagsToReplace` list defined above. 238 // @see https://github.com/jquery/jquery/blob/1.5/jquery.js#L5518 239 // @see https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11022 240 html = html.replace(rxhtmlTagWithoutSpaceOrAttributes, "<$1></$1>"); 241 html = html.replace(rxhtmlTagWithSpaceAndMaybeAttributes, "<$1$2></$1>"); 242 243 // Prior to jQuery 1.12 and 2.2, this function gets called (via code later 244 // in this file) in addition to, rather than instead of, the unsafe 245 // expansion of self-closing tags (including ones not in the list above). 246 // We can't prevent that unsafe expansion from running, so instead we 247 // check to make sure that it doesn't affect the DOM returned by the 248 // browser's parsing logic. If it does affect it, then it's vulnerable to 249 // XSS, so we reject the entire string. 250 if ( (majorVersion === 1 && minorVersion < 12) || (majorVersion === 2 && minorVersion < 2) ) { 251 var htmlRisky = html.replace(rxhtmlTag, "<$1></$2>"); 252 if (htmlRisky !== html) { 253 // Even though htmlRisky and html are different strings, they might 254 // represent the same HTML structure once parsed, in which case, 255 // htmlRisky is actually safe. We can ask the browser to parse both 256 // to find out, but the browser can't parse table fragments (e.g., a 257 // root-level "<td>"), so we need to wrap them. We just need this 258 // technique to work on all supported browsers; we don't need to 259 // copy from the specific jQuery version we're using. 260 // @see https://github.com/jquery/jquery/blob/3.5.1/dist/jquery.js#L4939 261 var wrapMap = { 262 thead: [ 1, "<table>", "</table>" ], 263 col: [ 2, "<table><colgroup>", "</colgroup></table>" ], 264 tr: [ 2, "<table><tbody>", "</tbody></table>" ], 265 td: [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ], 266 }; 267 wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead; 268 wrapMap.th = wrapMap.td; 269 270 // Function to wrap HTML into something that a browser can parse. 271 // @see https://github.com/jquery/jquery/blob/3.5.1/dist/jquery.js#L5032 272 var getWrappedHtml = function (html) { 273 var wrap = wrapMap[tag]; 274 if (wrap) { 275 html = wrap[1] + html + wrap[2]; 276 } 277 return html; 278 }; 279 280 // Function to return canonical HTML after parsing it. This parses 281 // only; it doesn't execute scripts. 282 // @see https://github.com/jquery/jquery-migrate/blob/3.3.0/src/jquery/manipulation.js#L5 283 var getParsedHtml = function (html) { 284 var doc = window.document.implementation.createHTMLDocument( "" ); 285 doc.body.innerHTML = html; 286 return doc.body ? doc.body.innerHTML : ''; 287 }; 288 289 // If the browser couldn't parse either one successfully, or if 290 // htmlRisky parses differently than html, then html is vulnerable, 291 // so reject it. 292 var htmlParsed = getParsedHtml(getWrappedHtml(html)); 293 var htmlRiskyParsed = getParsedHtml(getWrappedHtml(htmlRisky)); 294 if (htmlRiskyParsed === '' || htmlParsed === '' || (htmlRiskyParsed !== htmlParsed)) { 295 html = ''; 296 } 297 } 298 } 299 300 return html; 301 } 302 }); 303 304 // Prior to jQuery 1.12 and 2.2, jQuery.clean(), jQuery.buildFragment(), and 305 // jQuery.fn.html() did not call jQuery.htmlPrefilter(), so we add that. 306 if ( (majorVersion === 1 && minorVersion < 12) || (majorVersion === 2 && minorVersion < 2) ) { 307 // Filter the HTML coming into jQuery.fn.html(). 308 var fnOriginalHtml = jQuery.fn.html; 309 jQuery.fn.extend({ 310 // @see https://github.com/jquery/jquery/blob/1.5/jquery.js#L5147 311 html: function (value) { 312 if (typeof value === "string") { 313 value = jQuery.htmlPrefilter(value); 314 } 315 // .html() can be called as a setter (with an argument) or as a getter 316 // (without an argument), so invoke fnOriginalHtml() the same way that 317 // we were invoked. 318 return fnOriginalHtml.apply(this, arguments.length ? [value] : []); 319 } 320 }); 321 322 // The regular expression that jQuery uses to determine if a string is HTML. 323 // Used by both clean() and buildFragment(). 324 // @see https://github.com/jquery/jquery/blob/1.5/jquery.js#L4960
325 var rhtml = /<|&#?\w+;/; 326 327 // Filter HTML coming into: 328 // - jQuery.clean() for versions prior to 1.9. 329 // - jQuery.buildFragment() for 1.9 and above. 330 // 331 // The looping constructs in the two functions might be essentially 332 // identical, but they're each expressed here in the way that most closely 333 // matches their original expression in jQuery, so that we filter all of 334 // the items and only the items that jQuery will treat as HTML strings. 335 if (majorVersion === 1 && minorVersion < 9) { 336 var originalClean = jQuery.clean; 337 jQuery.extend({ 338 // @see https://github.com/jquery/jquery/blob/1.5/jquery.js#L5493 339 'clean': function (elems, context, fragment, scripts) { 340 for ( var i = 0, elem; (elem = elems[i]) != null; i++ ) { 341 if ( typeof elem === "string" && rhtml.test( elem ) ) { 342 elems[i] = elem = jQuery.htmlPrefilter(elem); 343 } 344 } 345 return originalClean.call(this, elems, context, fragment, scripts); 346 } 347 }); 348 } 349 else { 350 var originalBuildFragment = jQuery.buildFragment; 351 jQuery.extend({ 352 // @see https://github.com/jquery/jquery/blob/1.9.0/jquery.js#L6419 353 'buildFragment': function (elems, context, scripts, selection) { 354 var l = elems.length; 355 for ( var i = 0; i < l; i++ ) { 356 var elem = elems[i]; 357 if (elem || elem === 0) { 358 if ( jQuery.type( elem ) !== "object" && rhtml.test( elem ) ) { 359 elems[i] = elem = jQuery.htmlPrefilter(elem); 360 } 361 } 362 } 363 return originalBuildFragment.call(this, elems, context, scripts, selection); 364 } 365 }); 366 } 367 } 368 369})(jQuery); 370; 371 372/** 373 * jQuery Once Plugin v1.2 374 * http://plugins.jquery.com/project/once 375 * 376 * Dual licensed under the MIT and GPL licenses: 377 * http://www.opensource.org/licenses/mit-license.php 378 * http://www.gnu.org/licenses/gpl.html 379 */ 380 381(function ($) { 382 var cache = {}, uuid = 0; 383 384 /** 385 * Filters elements by whether they have not yet been processed. 386 * 387 * @param id 388 * (Optional) If this is a string, then it will be used as the CSS class 389 * name that is applied to the elements for determining whether it has 390 * already been processed. The elements will get a class in the form of 391 * "id-processed". 392 * 393 * If the id parameter is a function, it will be passed off to the fn 394 * parameter and the id will become a unique identifier, represented as a 395 * number. 396 * 397 * When the id is neither a string or a function, it becomes a unique 398 * identifier, depicted as a number. The element's class will then be 399 * represented in the form of "jquery-once-#-processed". 400 * 401 * Take note that the id must be valid for usage as an element's class name. 402 * @param fn 403 * (Optional) If given, this function will be called for each element that 404 * has not yet been processed. The function's return value follows the same 405 * logic as $.each(). Returning true will continue to the next matched 406 * element in the set, while returning false will entirely break the 407 * iteration. 408 */ 409 $.fn.once = function (id, fn) { 410 if (typeof id != 'string') { 411 // Generate a numeric ID if the id passed can't be used as a CSS class. 412 if (!(id in cache)) { 413 cache[id] = ++uuid; 414 } 415 // When the fn parameter is not passed, we interpret it from the id. 416 if (!fn) { 417 fn = id; 418 } 419 id = 'jquery-once-' + cache[id]; 420 } 421 // Remove elements from the set that have already been processed. 422 var name = id + '-processed'; 423 var elements = this.not('.' + name).addClass(name); 424 425 return $.isFunction(fn) ? elements.each(fn) : elements; 426 }; 427 428 /** 429 * Filters elements that have been processed once already. 430 * 431 * @param id 432 * A required string representing the name of the class which should be used 433 * when filtering the elements. This only filters elements that have already 434 * been processed by the once function. The id should be the same id that 435 * was originally passed to the once() function. 436 * @param fn 437 * (Optional) If given, this function will be called for each element that 438 * has not yet been processed. The function's return value follows the same 439 * logic as $.each(). Returning true will continue to the next matched 440 * element in the set, while returning false will entirely break the 441 * iteration. 442 */ 443 $.fn.removeOnce = function (id, fn) { 444 var name = id + '-processed'; 445 var elements = this.filter('.' + name).removeClass(name); 446 447 return $.isFunction(fn) ? elements.each(fn) : elements; 448 }; 449})(jQuery); 450; 451 452var Drupal = Drupal || { 'settings': {}, 'behaviors': {}, 'locale': {} }; 453 454// Allow other JavaScript libraries to use $. 455jQuery.noConflict(); 456 457(function ($) { 458 459/** 460 * Override jQuery.fn.init to guard against XSS attacks. 461 * 462 * See http://bugs.jquery.com/ticket/9521 463 */ 464var jquery_init = $.fn.init; 465$.fn.init = function (selector, context, rootjQuery) { 466 // If the string contains a "#" before a "<", treat it as invali
466d HTML. 467 if (selector && typeof selector === 'string') { 468 var hash_position = selector.indexOf('#'); 469 if (hash_position >= 0) { 470 var bracket_position = selector.indexOf('<'); 471 if (bracket_position > hash_position) { 472 throw 'Syntax error, unrecognized expression: ' + selector; 473 } 474 } 475 } 476 return jquery_init.call(this, selector, context, rootjQuery); 477}; 478$.fn.init.prototype = jquery_init.prototype; 479 480/** 481 * Pre-filter Ajax requests to guard against XSS attacks. 482 * 483 * See https://github.com/jquery/jquery/issues/2432 484 */ 485if ($.ajaxPrefilter) { 486 // For newer versions of jQuery, use an Ajax prefilter to prevent 487 // auto-executing script tags from untrusted domains. This is similar to the 488 // fix that is built in to jQuery 3.0 and higher. 489 $.ajaxPrefilter(function (s) { 490 if (s.crossDomain) { 491 s.contents.script = false; 492 } 493 }); 494} 495else if ($.httpData) { 496 // For the version of jQuery that ships with Drupal core, override 497 // jQuery.httpData to prevent auto-detecting "script" data types from 498 // untrusted domains. 499 var jquery_httpData = $.httpData; 500 $.httpData = function (xhr, type, s) { 501 // @todo Consider backporting code from newer jQuery versions to check for 502 // a cross-domain request here, rather than using Drupal.urlIsLocal() to 503 // block scripts from all URLs that are not on the same site. 504 if (!type && !Drupal.urlIsLocal(s.url)) { 505 var content_type = xhr.getResponseHeader('content-type') || ''; 506 if (content_type.indexOf('javascript') >= 0) { 507 // Default to a safe data type. 508 type = 'text'; 509 } 510 } 511 return jquery_httpData.call(this, xhr, type, s); 512 }; 513 $.httpData.prototype = jquery_httpData.prototype; 514} 515 516/** 517 * Attach all registered behaviors to a page element. 518 * 519 * Behaviors are event-triggered actions that attach to page elements, enhancing 520 * default non-JavaScript UIs. Behaviors are registered in the Drupal.behaviors 521 * object using the method 'attach' and optionally also 'detach' as follows: 522 * @code 523 * Drupal.behaviors.behaviorName = { 524 * attach: function (context, settings) { 525 * ... 526 * }, 527 * detach: function (context, settings, trigger) { 528 * ... 529 * } 530 * }; 531 * @endcode 532 * 533 * Drupal.attachBehaviors is added below to the jQuery ready event and so 534 * runs on initial page load. Developers implementing AHAH/Ajax in their 535 * solutions should also call this function after new page content has been 536 * loaded, feeding in an element to be processed, in order to attach all 537 * behaviors to the new content. 538 * 539 * Behaviors should use 540 * @code 541 * $(selector).once('behavior-name', function () { 542 * ... 543 * }); 544 * @endcode 545 * to ensure the behavior is attached only once to a given element. (Doing so 546 * enables the reprocessing of given elements, which may be needed on occasion 547 * despite the ability to limit behavior attachment to a particular element.) 548 * 549 * @param context 550 * An element to attach behaviors to. If none is given, the document element 551 * is used. 552 * @param settings 553 * An object containing settings for the current context. If none given, the 554 * global Drupal.settings object is used. 555 */ 556Drupal.attachBehaviors = function (context, settings) { 557 context = context || document; 558 settings = settings || Drupal.settings; 559 // Execute all of them. 560 $.each(Drupal.behaviors, function () { 561 if ($.isFunction(this.attach)) { 562 this.attach(context, settings); 563 } 564 }); 565}; 566 567/** 568 * Detach registered behaviors from a page element. 569 * 570 * Developers implementing AHAH/Ajax in their solutions should call this 571 * function before page content is about to be removed, feeding in an element 572 * to be processed, in order to allow special behaviors to detach from the 573 * content. 574 * 575 * Such implementations should look for the class name that was added in their 576 * corresponding Drupal.behaviors.behaviorName.attach implementation, i.e. 577 * behaviorName-processed, to ensure the behavior is detached only from 578 * previously processed elements. 579 * 580 * @param context 581 * An element to detach behaviors from. If none is given, the document element 582 * is used. 583 * @param settings
584 * An object containing settings for the current context. If none given, the 585 * global Drupal.settings object is used. 586 * @param trigger 587 * A string containing what's causing the behaviors to be detached. The 588 * possible triggers are: 589 * - unload: (default) The context element is being removed from the DOM. 590 * - move: The element is about to be moved within the DOM (for example, 591 * during a tabledrag row swap). After the move is completed, 592 * Drupal.attachBehaviors() is called, so that the behavior can undo 593 * whatever it did in response to the move. Many behaviors won't need to 594 * do anything simply in response to the element being moved, but because 595 * IFRAME elements reload their "src" when being moved within the DOM, 596 * behaviors bound to IFRAME elements (like WYSIWYG editors) may need to 597 * take some action. 598 * - serialize: When an Ajax form is submitted, this is called with the 599 * form as the context. This provides every behavior within the form an 600 * opportunity to ensure that the field elements have correct content 601 * in them before the form is serialized. The canonical use-case is so 602 * that WYSIWYG editors can update the hidden textarea to which they are 603 * bound. 604 * 605 * @see Drupal.attachBehaviors 606 */ 607Drupal.detachBehaviors = function (context, settings, trigger) { 608 context = context || document; 609 settings = settings || Drupal.settings; 610 trigger = trigger || 'unload'; 611 // Execute all of them. 612 $.each(Drupal.behaviors, function () { 613 if ($.isFunction(this.detach)) { 614 this.detach(context, settings, trigger); 615 } 616 }); 617}; 618 619/** 620 * Encode special characters in a plain-text string for display as HTML. 621 * 622 * @ingroup sanitization 623 */ 624Drupal.checkPlain = function (str) { 625 var character, regex, 626 replace = { '&': '&', "'": ''', '"': '"', '<': '<', '>': '>' }; 627 str = String(str); 628 for (character in replace) { 629 if (replace.hasOwnProperty(character)) { 630 regex = new RegExp(character, 'g'); 631 str = str.replace(regex, replace[character]); 632 } 633 } 634 return str; 635}; 636 637/** 638 * Replace placeholders with sanitized values in a string. 639 * 640 * @param str 641 * A string with placeholders. 642 * @param args 643 * An object of replacements pairs to make. Incidences of any key in this 644 * array are replaced with the corresponding value. Based on the first 645 * character of the key, the value is escaped and/or themed: 646 * - !variable: inserted as is 647 * - @variable: escape plain text to HTML (Drupal.checkPlain) 648 * - %variable: escape text and theme as a placeholder for user-submitted 649 * content (checkPlain + Drupal.theme('placeholder')) 650 * 651 * @see Drupal.t() 652 * @ingroup sanitization 653 */ 654Drupal.formatString = function(str, args) { 655 // Transform arguments before inserting them. 656 for (var key in args) { 657 if (args.hasOwnProperty(key)) { 658 switch (key.charAt(0)) { 659 // Escaped only. 660 case '@': 661 args[key] = Drupal.checkPlain(args[key]); 662 break; 663 // Pass-through. 664 case '!': 665 break; 666 // Escaped and placeholder. 667 default: 668 args[key] = Drupal.theme('placeholder', args[key]); 669 break; 670 } 671 } 672 } 673 674 return Drupal.stringReplace(str, args, null); 675}; 676 677/** 678 * Replace substring. 679 * 680 * The longest keys will be tried first. Once a substring has been replaced, 681 * its new value will not be searched again. 682 * 683 * @param {String} str 684 * A string with placeholders. 685 * @param {Object} args 686 * Key-value pairs. 687 * @param {Array|null} keys 688 * Array of keys from the "args". Internal use only. 689 * 690 * @return {String} 691 * Returns the replaced string. 692 */ 693Drupal.stringReplace = function (str, args, keys) { 694 if (str.length === 0) { 695 return str; 696 } 697 698 // If the array of keys is not passed then collect the keys from the args. 699 if (!$.isArray(keys)) { 700 keys = []; 701 for (var k in args) { 702 if (args.hasOwnProperty(k)) { 703 keys.push(k); 704 } 705 } 706 707 // Order the keys by the character length. The shortest one is the first. 708 keys.sort(function (a, b) { return a.length - b.length; }); 709 } 710 711 if (keys.length === 0) { 712 return str; 713 } 714 715 // Take next longest one from the end. 716 var key = keys.pop(); 717 var fragments = str.split(key); 718 719 if (keys.length) { 720 for (var i = 0; i < fragments.length; i++) { 721 // Process each fragment with a copy of remaining keys. 722 fragments[i] = Drupal.stringReplace(fragments[i], args, keys.slice(0)); 723 } 724 } 725 726 return fragments.join(args[key]); 727}; 728 729/** 730 * Translate strings to the page language or a given language. 731 * 732 * See the documentation of the server-side t() function for further details. 733 * 734 * @param str 735 * A string containing the English string to translate. 736 * @param args 737 * An object of replacements pairs to make after translation. Incidences 738 * of any key in this array are replaced with the corresponding value. 739 * See Drupal.formatString(). 740 * 741 * @param options 742 * - 'context' (defaults to the empty context): The context the source string 743 * belongs to. 744 * 745 * @return 746 * The translated string. 747 */ 748Drupal.t = function (str, args, options) { 749 options = options || {}; 750 options.context = options.context || ''; 751 752 // Fetch the localized version of the string. 753 if (Drupal.locale.strings && Drupal.locale.strings[options.context] && Drupal.locale.strings[options.context][str]) { 754 str = Drupal.locale.strings[options.context][str]; 755 } 756 757 if (args) { 758 str = Drupal.formatString(str, args); 759 } 760 return str; 761}; 762 763/** 764 * Format a string containing a count of items. 765 * 766 * This function ensures that the string is pluralized correctly. Since Drupal.t() is 767 * called by this function, make sure not to pass already-localized strings to it. 768 * 769 * See the documentation of the server-side format_plural() function for further details. 770 * 771 * @param count 772 * The item count to display. 773 * @param singular 774 * The string for the singular case. Please make sure it is clear this is 775 * singular, to ease translation (e.g. use "1 new comment" instead of "1 new"). 776 * Do not use @count in the singular string. 777 * @param plural 778 * The string for the plural case. Please make sure it is clear this is plural, 779 * to ease translation. Use @count in place of the item count, as in "@count 780 * new comments". 781 * @param args 782 * An object of replacements pairs to make after translation. Incidences 783 * of any key in this array are replaced with the corresponding value. 784 * See Drupal.formatString(). 785 * Note that you do not need to include @count in this array.
786 * This replacement is done automatically for the plural case. 787 * @param options 788 * The options to pass to the Drupal.t() function. 789 * @return 790 * A translated string. 791 */ 792Drupal.formatPlural = function (count, singular, plural, args, options) { 793 args = args || {}; 794 args['@count'] = count; 795 // Determine the index of the plural form. 796 var index = Drupal.locale.pluralFormula ? Drupal.locale.pluralFormula(args['@count']) : ((args['@count'] == 1) ? 0 : 1); 797 798 if (index == 0) { 799 return Drupal.t(singular, args, options); 800 } 801 else if (index == 1) { 802 return Drupal.t(plural, args, options); 803 } 804 else { 805 args['@count[' + index + ']'] = args['@count']; 806 delete args['@count']; 807 return Drupal.t(plural.replace('@count', '@count[' + index + ']'), args, options); 808 } 809}; 810 811/** 812 * Returns the passed in URL as an absolute URL. 813 * 814 * @param url 815 * The URL string to be normalized to an absolute URL. 816 * 817 * @return 818 * The normalized, absolute URL. 819 * 820 * @see https://github.com/angular/angular.js/blob/v1.4.4/src/ng/urlUtils.js 821 * @see https://grack.com/blog/2009/11/17/absolutizing-url-in-javascript 822 * @see https://github.com/jquery/jquery-ui/blob/1.11.4/ui/tabs.js#L53 823 */ 824Drupal.absoluteUrl = function (url) { 825 var urlParsingNode = document.createElement('a'); 826 827 // Decode the URL first; this is required by IE <= 6. Decoding non-UTF-8 828 // strings may throw an exception. 829 try { 830 url = decodeURIComponent(url); 831 } catch (e) {} 832 833 urlParsingNode.setAttribute('href', url); 834 835 // IE <= 7 normalizes the URL when assigned to the anchor node similar to 836 // the other browsers. 837 return urlParsingNode.cloneNode(false).href; 838}; 839 840/** 841 * Returns true if the URL is within Drupal's base path. 842 * 843 * @param url 844 * The URL string to be tested. 845 * 846 * @return 847 * Boolean true if local. 848 * 849 * @see https://github.com/jquery/jquery-ui/blob/1.11.4/ui/tabs.js#L58 850 */ 851Drupal.urlIsLocal = function (url) { 852 // Always use browser-derived absolute URLs in the comparison, to avoid 853 // attempts to break out of the base path using directory traversal. 854 var absoluteUrl = Drupal.absoluteUrl(url); 855 var protocol = location.protocol; 856 857 // Consider URLs that match this site's base URL but use HTTPS instead of HTTP 858 // as local as well. 859 if (protocol === 'http:' && absoluteUrl.indexOf('https:') === 0) { 860 protocol = 'https:'; 861 } 862 var baseUrl = protocol + '//' + location.host + Drupal.settings.basePath.slice(0, -1); 863 864 // Decoding non-UTF-8 strings may throw an exception. 865 try { 866 absoluteUrl = decodeURIComponent(absoluteUrl); 867 } catch (e) {} 868 try { 869 baseUrl = decodeURIComponent(baseUrl); 870 } catch (e) {} 871 872 // The given URL matches the site's base URL, or has a path under the site's 873 // base URL. 874 return absoluteUrl === baseUrl || absoluteUrl.indexOf(baseUrl + '/') === 0; 875}; 876 877/** 878 * Sanitizes a URL for use with jQuery.ajax(). 879 * 880 * @param url 881 * The URL string to be sanitized. 882 * 883 * @return 884 * The sanitized URL. 885 */ 886Drupal.sanitizeAjaxUrl = function (url) { 887 var regex = /\=\?(&|$)/; 888 while (url.match(regex)) { 889 url = url.replace(regex, ''); 890 } 891 return url; 892} 893 894/** 895 * Generate the themed representation of a Drupal object. 896 * 897 * All requests for themed output must go through this function. It examines 898 * the request and routes it to the appropriate theme function. If the current 899 * theme does not provide an override function, the generic theme function is 900 * called. 901 * 902 * For example, to retrieve the HTML for text that should be emphasized and 903 * displayed as a placeholder inside a sentence, call 904 * Drupal.theme('placeholder', text). 905 * 906 * @param func 907 * The name of the theme function to call. 908 * @param ... 909 * Additional arguments to pass along to the theme function. 910 * @return 911 * Any data the theme function returns. This could be a plain HTML string, 912 * but also a complex object. 913 */ 914Drupal.theme = function (func) { 915 var args = Array.prototype.slice.apply(arguments, [1]); 916 917 return (Drupal.theme[func] || Drupal.theme.prototype[func]).apply(this, args); 918}; 919 920/** 921 * Freeze the current body height (as minimum height). Used to prevent 922 * unnecessary upwards scrolling when doing DOM manipulations. 923 */ 924Drupal.freezeHeight = function () { 925 Drupal.unfreezeHeight(); 926 $('<div id="freeze-height"></div>').css({ 927 position: 'absolute', 928 top: '0px', 929 left: '0px', 930 width: '1px', 931 height: $('body').css('height') 932 }).appendTo('body'); 933}; 934 935/** 936 * Unfreeze the body height. 937 */ 938Drupal.unfreezeHeight = function () { 939 $('#freeze-height').remove(); 940}; 941 942/** 943 * Encodes a Drupal path for use in a URL. 944 * 945 * For aesthetic reasons slashes are not escaped. 946 */ 947Drupal.encodePath = function (item, uri) { 948 uri = uri || location.href; 949 return encodeURIComponent(item).replace(/%2F/g, '/'); 950}; 951 952/** 953 * Get the text selection in a textarea. 954 */ 955Drupal.getSelection = function (element) { 956 if (typeof element.selectionStart != 'number' && document.selection) { 957 // The current selection. 958 var range1 = document.selection.createRange(); 959 var range2 = range1.duplicate(); 960 // Select all text. 961 range2.moveToElementText(element); 962 // Now move 'dummy' end point to end point of original range.
963 range2.setEndPoint('EndToEnd', range1); 964 // Now we can calculate start and end points. 965 var start = range2.text.length - range1.text.length; 966 var end = start + range1.text.length; 967 return { 'start': start, 'end': end }; 968 } 969 return { 'start': element.selectionStart, 'end': element.selectionEnd }; 970}; 971 972/** 973 * Add a global variable which determines if the window is being unloaded. 974 * 975 * This is primarily used by Drupal.displayAjaxError(). 976 */ 977Drupal.beforeUnloadCalled = false; 978$(window).bind('beforeunload pagehide', function () { 979 Drupal.beforeUnloadCalled = true; 980}); 981 982/** 983 * Displays a JavaScript error from an Ajax response when appropriate to do so. 984 */ 985Drupal.displayAjaxError = function (message) { 986 // Skip displaying the message if the user deliberately aborted (for example, 987 // by reloading the page or navigating to a different page) while the Ajax 988 // request was still ongoing. See, for example, the discussion at 989 // http://stackoverflow.com/questions/699941/handle-ajax-error-when-a-user-clicks-refresh. 990 if (!Drupal.beforeUnloadCalled) { 991 alert(message); 992 } 993}; 994 995/** 996 * Build an error message from an Ajax response. 997 */ 998Drupal.ajaxError = function (xmlhttp, uri, customMessage) { 999 var statusCode, statusText, pathText, responseText, readyStateText, message; 1000 if (xmlhttp.status) { 1001 statusCode = "\n" + Drupal.t("An AJAX HTTP error occurred.") + "\n" + Drupal.t("HTTP Result Code: !status", {'!status': xmlhttp.status}); 1002 } 1003 else { 1004 statusCode = "\n" + Drupal.t("An AJAX HTTP request terminated abnormally."); 1005 } 1006 statusCode += "\n" + Drupal.t("Debugging information follows."); 1007 pathText = "\n" + Drupal.t("Path: !uri", {'!uri': uri} ); 1008 statusText = ''; 1009 // In some cases, when statusCode == 0, xmlhttp.statusText may not be defined. 1010 // Unfortunately, testing for it with typeof, etc, doesn't seem to catch that 1011 // and the test causes an exception. So we need to catch the exception here. 1012 try { 1013 statusText = "\n" + Drupal.t("StatusText: !statusText", {'!statusText': $.trim(xmlhttp.statusText)}); 1014 } 1015 catch (e) {} 1016 1017 responseText = ''; 1018 // Again, we don't have a way to know for sure whether accessing 1019 // xmlhttp.responseText is going to throw an exception. So we'll catch it. 1020 try { 1021 responseText = "\n" + Drupal.t("ResponseText: !responseText", {'!responseText': $.trim(xmlhttp.responseText) } ); 1022 } catch (e) {} 1023 1024 // Make the responseText more readable by stripping HTML tags and newlines. 1025 responseText = responseText.replace(/<("[^"]*"|'[^']*'|[^'">])*>/gi,""); 1026 responseText = responseText.replace(/[\n]+\s+/g,"\n"); 1027 1028 // We don't need readyState except for status == 0. 1029 readyStateText = xmlhttp.status == 0 ? ("\n" + Drupal.t("ReadyState: !readyState", {'!readyState': xmlhttp.readyState})) : ""; 1030 1031 // Additional message beyond what the xmlhttp object provides. 1032 customMessage = customMessage ? ("\n" + Drupal.t("CustomMessage: !customMessage", {'!customMessage': customMessage})) : ""; 1033 1034 message = statusCode + pathText + statusText + customMessage + responseText + readyStateText; 1035 return message; 1036}; 1037 1038// Class indicating that JS is enabled; used for styling purpose. 1039$('html').addClass('js'); 1040 1041// 'js enabled' cookie. 1042document.cookie = 'has_js=1; path=/'; 1043 1044/** 1045 * Additions to jQuery.support. 1046 */ 1047$(function () { 1048 /** 1049 * Boolean indicating whether or not position:fixed is supported. 1050 */ 1051 if (jQuery.support.positionFixed === undefined) { 1052 var el = $('<div style="position:fixed; top:10px" />').appendTo(document.body); 1053 jQuery.support.positionFixed = el[0].offsetTop === 10; 1054 el.remove(); 1055 } 1056}); 1057 1058//Attach all behaviors. 1059$(function () { 1060 Drupal.attachBehaviors(document, Drupal.settings); 1061}); 1062 1063/** 1064 * The default themes. 1065 */ 1066Drupal.theme.prototype = { 1067 1068 /** 1069 * Formats text for emphasized display in a placeholder inside a sentence. 1070 * 1071 * @param str 1072 * The text to format (plain-text). 1073 * @return 1074 * The formatted text (html). 1075 */ 1076 placeholder: function (str) { 1077 return '<em class="placeholder">' + Drupal.checkPlain(str) + '</em>'; 1078 } 1079}; 1080 1081})(jQuery); 1082;
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