1/**
  2 * @output wp-admin/js/password-strength-meter.js
  3 */
  4
  5/* global zxcvbn */
  6window.wp = window.wp || {};
  7
  8(function($){
  9	var __ = wp.i18n.__,
 10		sprintf = wp.i18n.sprintf;
 11
 12	/**
 13	 * Contains functions to determine the password strength.
 14	 *
 15	 * @since 3.7.0
 16	 *
 17	 * @namespace
 18	 */
 19	wp.passwordStrength = {
 20		/**
 21		 * Determines the strength of a given password.
 22		 *
 23		 * Compares first password to the password confirmation.
 24		 *
 25		 * @since 3.7.0
 26		 *
 27		 * @param {string} password1       The subject password.
 28		 * @param {Array}  disallowedList An array of words that will lower the entropy of
 29		 *                                 the password.
 30		 * @param {string} password2       The password confirmation.
 31		 *
 32		 * @return {number} The password strength score.
 33		 */
 34		meter : function( password1, disallowedList, password2 ) {
 35			if ( ! Array.isArray( disallowedList ) )
 36				disallowedList = [ disallowedList.toString() ];
 37
 38			if (password1 != password2 && password2 && password2.length > 0)
 39				return 5;
 40
 41			if ( 'undefined' === typeof window.zxcvbn ) {
 42				// Password strength unknown.
 43				return -1;
 44			}
 45
 46			var result = zxcvbn( password1, disallowedList );
 47			return result.score;
 48		},
 49
 50		/**
 51		 * Builds an array of words that should be penalized.
 52		 *
 53		 * Certain words need to be penalized because it would lower the entropy of a
 54		 * password if they were used. The disallowedList is based on user input fields such
 55		 * as username, first name, email etc.
 56		 *
 57		 * @since 3.7.0
 58		 * @deprecated 5.5.0 Use {@see 'userInputDisallowedList()'} instead.
 59		 *
 60		 * @return {string[]} The array of words to be disallowed.
 61		 */
 62		userInputBlacklist : function() {
 63			window.console.log(
 64				sprintf(
 65					/* translators: 1: Deprecated function name, 2: Version number, 3: Alternative function name. */
 66					__( '%1$s is deprecated since version %2$s! Use %3$s instead. Please consider writing more inclusive code.' ),
 67					'wp.passwordStrength.userInputBlacklist()',
 68					'5.5.0',
 69					'wp.passwordStrength.userInputDisallowedList()'
 70				)
 71			);
 72
 73			return wp.passwordStrength.userInputDisallowedList();
 74		},
 75
 76		/**
 77		 * Builds an array of words that should be penalized.
 78		 *
 79		 * Certain words need to be penalized because it would lower the entropy of a
 80		 * password if they were used. The disallowed list is based on user input fields such
 81		 * as username, first name, email etc.
 82		 *
 83		 * @since 5.5.0
 84		 *
 85		 * @return {string[]} The array of words to be disallowed.
 86		 */
 87		userInputDisallowedList : function() {
 88			var i, userInputFieldsLength, rawValuesLength, currentField,
 89				rawValues       = [],
 90				disallowedList  = [],
 91				userInputFields = [ 'user_login', 'first_name', 'last_name', 'nickname', 'display_name', 'email', 'url', 'description', 'weblog_title', 'admin_email' ];
 92
 93			// Collect all the strings we want to disallow.
 94			rawValues.push( document.title );
 95			rawValues.push( document.URL );
 96
 97			userInputFieldsLength = userInputFields.length;
 98			for ( i = 0; i < userInputFieldsLength; i++ ) {
 99				currentField = $( '#' + userInputFields[ i ] );
100
101				if ( 0 === currentField.length ) {
102					continue;
103				}
104
105				rawValues.push( currentField[0].defaultValue );
106				rawValues.push( currentField.val() );
107			}
108
109			/*
110			 * Strip out non-alphanumeric characters and convert each word to an
111			 * individual entry.
112			 */
113			rawValuesLength = rawValues.length;
114			for ( i = 0; i < rawValuesLength; i++ ) {
115				if ( rawValues[ i ] ) {
116					disallowedList = disallowedList.concat( rawValues[ i ].replace( /\W/g, ' ' ).split( ' ' ) );
117				}
118			}
119
120			/*
121			 * Remove empty values, short words and duplicates. Short words are likely to
122			 * cause many false positives.
123			 */
124			disallowedList = $.grep( disallowedList, function( value, key ) {
125				if ( '' === value || 4 > value.length ) {
126					return false;
127				}
128
129				return $.inArray( value, disallowedList ) === key;
130			});
131
132			return disallowedList;
133		}
134	};
135
136	// Backward compatibility.
137
138	/**
139	 * Password strength meter function.
140	 *
141	 * @since 2.5.0
142	 * @deprecated 3.7.0 Use wp.passwordStrength.meter instead.
143	 *
144	 * @global
145	 *
146	 * @type {wp.passwordStrength.meter}
147	 */
148	window.passwordStrength = wp.passwordStrength.meter;
149})(jQuery);
150