wp-admin/js/password-strength-meter.js

   1 window.wp = window.wp || {};
   2
   3 var passwordStrength;
   4 (function($){
   5         wp.passwordStrength = {
   6                 /**
   7                  * Determine the strength of a given password
   8                  *
   9                  * @param string password1 The password
  10                  * @param array blacklist An array of words that will lower the entropy of the password
  11                  * @param string password2 The confirmed password
  12                  */
  13                 meter : function( password1, blacklist, password2 ) {
  14                         if ( ! $.isArray( blacklist ) )
  15                                 blacklist = [ blacklist.toString() ];
  16
  17                         if (password1 != password2 && password2 && password2.length > 0)
  18                                 return 5;
  19
  20                         var result = zxcvbn( password1, blacklist );
  21                         return result.score;
  22                 },
  23
  24                 /**
  25                  * Builds an array of data that should be penalized, because it would lower the entropy of a password if it were used
  26                  *
  27                  * @return array The array of data to be blacklisted
  28                  */
  29                 userInputBlacklist : function() {
  30                         var i, userInputFieldsLength, rawValuesLength, currentField,
  31                                 rawValues       = [],
  32                                 blacklist       = [],
  33                                 userInputFields = [ 'user_login', 'first_name', 'last_name', 'nickname', 'display_name', 'email', 'url', 'description', 'weblog_title', 'admin_email' ];
  34
  35                         // Collect all the strings we want to blacklist
  36                         rawValues.push( document.title );
  37                         rawValues.push( document.URL );
  38
  39                         userInputFieldsLength = userInputFields.length;
  40                         for ( i = 0; i < userInputFieldsLength; i++ ) {
  41                                 currentField = $( '#' + userInputFields[ i ] );
  42
  43                                 if ( 0 == currentField.length ) {
  44                                         continue;
  45                                 }
  46
  47                                 rawValues.push( currentField[0].defaultValue );
  48                                 rawValues.push( currentField.val() );
  49                         }
  50
  51                         // Strip out non-alphanumeric characters and convert each word to an individual entry
  52                         rawValuesLength = rawValues.length;
  53                         for ( i = 0; i < rawValuesLength; i++ ) {
  54                                 if ( rawValues[ i ] ) {
  55                                         blacklist = blacklist.concat( rawValues[ i ].replace( /\W/g, ' ' ).split( ' ' ) );
  56                                 }
  57                         }
  58
  59                         // Remove empty values, short words, and duplicates. Short words are likely to cause many false positives.
  60                         blacklist = $.grep( blacklist, function( value, key ) {
  61                                 if ( '' == value || 4 > value.length ) {
  62                                         return false;
  63                                 }
  64
  65                                 return $.inArray( value, blacklist ) === key;
  66                         });
  67
  68                         return blacklist;
  69                 }
  70         }
  71
  72         // Backwards compatibility.
  73         passwordStrength = wp.passwordStrength.meter;
  74 })(jQuery);