https://semanadecinedelugo.com/modules/extlink/extlink.js?v=8.7.6

1/**
2 * @file
3 */
4
5(function ($, Drupal, drupalSettings) {
6
7  'use strict';
8
9  Drupal.extlink = Drupal.extlink || {};
10
11  Drupal.extlink.attach = function (context, drupalSettings) {
12    if (!drupalSettings.data.hasOwnProperty('extlink')) {
13      return;
14    }
15
16    // Strip the host name down, removing ports, subdomains, or www.
17    var pattern = /^(([^\/:]+?\.)*)([^\.:]{1,})((\.[a-z0-9]{1,253})*)(:[0-9]{1,5})?$/;
18    var host = window.location.host.replace(pattern, '$2$3');
19    var subdomain = window.location.host.replace(host, '');
20
21    // Determine what subdomains are considered internal.
22    var subdomains;
23    if (drupalSettings.data.extlink.extSubdomains) {
24      subdomains = '([^/]*\\.)?';
25    }
26    else if (subdomain === 'www.' || subdomain === '') {
27      subdomains = '(www\\.)?';
28    }
29    else {
30      subdomains = subdomain.replace('.', '\\.');
31    }
32
33    // Build regular expressions that define an internal link.
34    var internal_link = new RegExp('^https?://' + subdomains + host, 'i');
35
36    // Extra internal link matching.
37    var extInclude = false;
38    if (drupalSettings.data.extlink.extInclude) {
39      extInclude = new RegExp(drupalSettings.data.extlink.extInclude.replace(/\\/, '\\'), 'i');
40    }
41
42    // Extra external link matching.
43    var extExclude = false;
44    if (drupalSettings.data.extlink.extExclude) {
45      extExclude = new RegExp(drupalSettings.data.extlink.extExclude.replace(/\\/, '\\'), 'i');
46    }
47
48    // Extra external link CSS selector exclusion.
49    var extCssExclude = false;
50    if (drupalSettings.data.extlink.extCssExclude) {
51      extCssExclude = drupalSettings.data.extlink.extCssExclude;
52    }
53
54    // Extra external link CSS selector explicit.
55    var extCssExplicit = false;
56    if (drupalSettings.data.extlink.extCssExplicit) {
57      extCssExplicit = drupalSettings.data.extlink.extCssExplicit;
58    }
59
60    // Find all links which are NOT internal and begin with http as opposed
61    // to ftp://, javascript:, etc. other kinds of links.
62    // When operating on the 'this' variable, the host has been appended to
63    // all links by the browser, even local ones.
64    // In jQuery 1.1 and higher, we'd use a filter method here, but it is not
65    // available in jQuery 1.0 (Drupal 5 default).
66    var external_links = [];
67    var mailto_links = [];
68    $('a:not(.' + drupalSettings.data.extlink.extClass + ', .' + drupalSettings.data.extlink.mailtoClass + '), area:not(.' + drupalSettings.data.extlink.extClass + ', .' + drupalSettings.data.extlink.mailtoClass + ')', context).each(function (el) {
69      try {
70        var url = '';
71        if (typeof this.href == 'string') {
72          url = this.href.toLowerCase();
73        }
74        // Handle SVG links (xlink:href).
75        else if (typeof this.href == 'object') {
76          url = this.href.baseVal;
77        }
78        if (url.indexOf('http') === 0
79          && ((!internal_link.test(url) && !(extExclude && extExclude.test(url))) || (extInclude && extInclude.test(url)))
80          && !(extCssExclude && $(this).is(extCssExclude))
81          && !(extCssExclude && $(this).parents(extCssExclude).length > 0)
82          && !(extCssExplicit && $(this).parents(extCssExplicit).length < 1)) {
83          external_links.push(this);
84        }
85        // Do not include area tags with begin with mailto: (this prohibits
86        // icons from being added to image-maps).
87        else if (this.tagName !== 'AREA'
88          && url.indexOf('mailto:') === 0
89          && !(extCssExclude && $(this).parents(extCssExclude).length > 0)
90          && !(extCssExplicit && $(this).parents(extCssExplicit).length < 1)) {
91          mailto_links.push(this);
92        }
93      }
94      // IE7 throws errors often when dealing with irregular links, such as:
95      // <a href="node/10"></a> Empty tags.
96      // <a href="http://user:[email protected]">example</a> User:pass syntax.
97      catch (error) {
98        return false;
99      }
100    });
101
102    if (drupalSettings.data.extlink.extClass !== '0' && drupalSettings.data.extlink.extClass !== '') {
103      Drupal.extlink.applyClassAndSpan(external_links, drupalSettings.data.extlink.extClass);
104    }
105
106    if (drupalSettings.data.extlink.mailtoClass !== '0' && drupalSettings.data.extlink.mailtoClass !== '') {
107      Drupal.extlink.applyClassAndSpan(mailto_links, drupalSettings.data.extlink.mailtoClass);
108    }
109
110    if (drupalSettings.data.extlink.extTarget) {
111      // Apply the target attribute to all links.
112      $(external_links).filter(function () {
113        // Filter out links with target set if option specified.
114        return !(drupalSettings.data.extlink.extTargetNoOverride && $(this).is('a[target]'));
115      }).attr({ target: '_blank' });
116

117      // Add noopener and noreferrer rel attributes to combat phishing.
118      $(external_links).attr('rel', function (i, val) {
119        // If no rel attribute is present, create one with the values noopener and noreferrer.
120        if (val === null || typeof val === 'undefined') {
121          return 'noopener noreferrer';
122        }
123        // Check to see if rel contains noopener or noreferrer. Add what doesn't exist.
124        if (val.indexOf('noopener') > -1 || val.indexOf('noreferrer') > -1) {
125          if (val.indexOf('noopener') === -1) {
126            return val + ' noopener';
127          }
128          if (val.indexOf('noreferrer') === -1) {
129            return val + ' noreferrer';
130          }
131          // Both noopener and noreferrer exist. Nothing needs to be added.
132          else {
133            return val;
134          }
135        }
136        // Else, append noopener and noreferrer to val.
137        else {
138          return val + ' noopener noreferrer';
139        }
140      });
141    }
142
143    if (drupalSettings.data.extlink.extNofollow) {
144      $(external_links).attr('rel', function (i, val) {
145        // when the link does not have a rel attribute set it to 'nofollow'.
146        if (val === null || typeof val === 'undefined') {
147          return 'nofollow';
148        }
149        var target = 'nofollow';
150        // Change the target, if not overriding follow.
151        if (drupalSettings.data.extlink.extFollowNoOverride) {
152          target = 'follow';
153        }
154        if (val.indexOf(target) === -1) {
155          return val + ' nofollow';
156        }
157        return val;
158      });
159    }
160
161    Drupal.extlink = Drupal.extlink || {};
162
163    // Set up default click function for the external links popup. This should be
164    // overridden by modules wanting to alter the popup.
165    Drupal.extlink.popupClickHandler = Drupal.extlink.popupClickHandler || function () {
166      if (drupalSettings.data.extlink.extAlert) {
167        return confirm(drupalSettings.data.extlink.extAlertText);
168      }
169    };
170
171    $(external_links).click(function (e) {
172      return Drupal.extlink.popupClickHandler(e, this);
173    });
174  };
175
176  /**
177   * Apply a class and a trailing <span> to all links not containing images.
178   *
179   * @param {object[]} links
180   *   An array of DOM elements representing the links.
181   * @param {string} class_name
182   *   The class to apply to the links.
183   */
184  Drupal.extlink.applyClassAndSpan = function (links, class_name) {
185    var $links_to_process;
186    if (drupalSettings.data.extlink.extImgClass) {
187      $links_to_process = $(links);
188    }
189    else {
190      var links_with_images = $(links).find('img').parents('a');
191      $links_to_process = $(links).not(links_with_images);
192    }
193    if (class_name !== '0') {
194      $links_to_process.addClass(class_name);
195    }
196    var i;
197    var length = $links_to_process.length;
198    for (i = 0; i < length; i++) {
199      var $link = $($links_to_process[i]);
200      if (class_name === drupalSettings.data.extlink.mailtoClass) {
201        $link.append('<span class="' + class_name + '" aria-label="' + drupalSettings.data.extlink.mailtoLabel + '"></span>');
202      }
203      else {
204        $link.append('<span class="' + class_name + '" aria-label="' + drupalSettings.data.extlink.extLabel + '"></span>');
205      }
206    }
207  };
208
209  Drupal.behaviors.extlink = Drupal.behaviors.extlink || {};
210  Drupal.behaviors.extlink.attach = function (context, drupalSettings) {
211    // Backwards compatibility, for the benefit of modules overriding extlink
212    // functionality by defining an "extlinkAttach" global function.
213    if (typeof extlinkAttach === 'function') {
214      extlinkAttach(context);
215    }
216    else {
217      Drupal.extlink.attach(context, drupalSettings);
218    }
219  };
220
221})(jQuery, Drupal, drupalSettings);