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Improved password strength meter from Otto42. fixes #7124

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git-svn-id: http://svn.automattic.com/wordpress/trunk@9276 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
ryan 2008-10-22 04:20:50 +00:00
parent d0fe49e03b
commit 3942c97d46
2 changed files with 14 additions and 70 deletions
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82
wp-admin/js/password-strength-meter.js
View File

@ -1,79 +1,23 @@
// Password strength meter
// This jQuery plugin is written by firas kassem [2007.04.05]
// Firas Kassem phiras.wordpress.com || phiras at gmail {dot} com
// for more information : http://phiras.wordpress.com/2007/04/08/password-strength-meter-a-jquery-plugin/
function passwordStrength(password,username) {
var shortPass = 1, badPass = 2, goodPass = 3, strongPass = 4, score = 0, d, s, u, l;
var shortPass = 1, badPass = 2, goodPass = 3, strongPass = 4;
//password < 4
//password < 4
if (password.length < 4 ) { return shortPass };
//password == username
if (password.toLowerCase()==username.toLowerCase()) return badPass;
//password length
score += password.length * 4;
score += ( checkRepetition(1,password).length - password.length ) * 1;
score += ( checkRepetition(2,password).length - password.length ) * 1;
score += ( checkRepetition(3,password).length - password.length ) * 1;
score += ( checkRepetition(4,password).length - password.length ) * 1;
d = password.match(/\d/g);
s = password.match(/[^\d\w]/g);
u = password.match(/[A-Z]/g);
l = password.match(/[a-z]/g);
//password has 3 numbers
if ( d && d.length > 2 ) score += 5;
//password has 2 sybols
if ( s && s.length > 1 ) score += 10;
//password has Upper and Lower chars
if ( u && l ) score += 10;
//password has number and chars
if ( u && l && d ) score += 15;
//
//password has number and symbol
if ( s && d ) score += 15;
//password has Upper char and symbol
if ( u && s ) score += 15;
//password is just a nubers or chars
if ( ! s ) score -= 10;
//verifing 0 < score < 100
if ( score < 0 ) score = 0;
if ( score > 100 ) score = 100;
if ( score < 34 ) return badPass;
if ( score < 68 || password.length < 7 ) return goodPass;
var symbolSize = 0;
if (password.match(/[0-9]/)) symbolSize +=10;
if (password.match(/[a-z]/)) symbolSize +=26;
if (password.match(/[A-Z]/)) symbolSize +=26;
if (password.match(/[^a-zA-Z0-9]/)) symbolSize +=31;
var natLog = Math.log( Math.pow(symbolSize,password.length) );
var score = natLog / Math.LN2;
if (score < 40 ) return badPass
if (score < 56 ) return goodPass
return strongPass;
}
// checkRepetition(1,'aaaaaaabcbc') = 'abcbc'
// checkRepetition(2,'aaaaaaabcbc') = 'aabc'
// checkRepetition(2,'aaaaaaabcdbcd') = 'aabcd'
function checkRepetition(pLen,str) {
res = ""
for ( i=0; i<str.length ; i++ ) {
repeated=true
for (j=0;j < pLen && (j+i+pLen) < str.length;j++)
repeated=repeated && (str.charAt(j+i)==str.charAt(j+i+pLen))
if (j<pLen) repeated=false
if (repeated) {
i+=pLen-1
repeated=false
}
else {
res+=str.charAt(i)
}
}
return res
}
}

2
wp-includes/script-loader.php
View File

@ -147,7 +147,7 @@ function wp_default_scripts( &$scripts ) {
$scripts->add( 'admin-categories', '/wp-admin/js/categories.js', array('wp-lists', 'columns', 'settings-box'), '20080925' );
$scripts->add( 'admin-tags', '/wp-admin/js/tags.js', array('wp-lists', 'columns', 'settings-box'), '20080925' );
$scripts->add( 'admin-custom-fields', '/wp-admin/js/custom-fields.js', array('wp-lists'), '20070823' );
$scripts->add( 'password-strength-meter', '/wp-admin/js/password-strength-meter.js', array('jquery'), '20080824' );
$scripts->add( 'password-strength-meter', '/wp-admin/js/password-strength-meter.js', array('jquery'), '20081021' );
$scripts->localize( 'password-strength-meter', 'pwsL10n', array(
'empty' => __('Strength indicator'),
'short' => __('Very weak'),