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);