147 lines
6.0 KiB
JavaScript
147 lines
6.0 KiB
JavaScript
//
|
|
// password_strength_plugin.js
|
|
// Copyright (c) 2009 myPocket technologies (www.mypocket-technologies.com)
|
|
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
|
|
// View the GNU General Public License <http://www.gnu.org/licenses/>.
|
|
|
|
// @author Darren Mason (djmason9@gmail.com)
|
|
// @date 1/23/2009
|
|
// @projectDescription Password Strength Meter is a jQuery plug-in provide you smart algorithm to detect a password strength. Based on Firas Kassem orginal plugin - http://phiras.wordpress.com/2007/04/08/password-strength-meter-a-jquery-plugin/
|
|
// @version 1.0.0
|
|
//
|
|
// @requires jquery.js (tested with 1.3.1)
|
|
// @param shortPass: "shortPass", //optional
|
|
// @param badPass: "badPass", //optional
|
|
// @param goodPass: "goodPass", //optional
|
|
// @param strongPass: "strongPass", //optional
|
|
// @param baseStyle: "testresult", //optional
|
|
// @param userid: "", //required override
|
|
// @param messageloc: 1 //before == 0 or after == 1
|
|
//
|
|
|
|
|
|
(function($) {
|
|
$.fn.shortPass = 'The password is too short';
|
|
$.fn.badPass = 'The password is weak';
|
|
$.fn.goodPass = 'Good password';
|
|
$.fn.strongPass = 'Strong password';
|
|
$.fn.samePassword = 'User name and Password are identical.';
|
|
$.fn.resultStyle = "";
|
|
|
|
$.fn.passStrength = function(options) {
|
|
|
|
var defaults = {
|
|
shortPass: 'shortPass', //optional
|
|
badPass: 'badPass', //optional
|
|
goodPass: 'goodPass', //optional
|
|
strongPass: 'strongPass', //optional
|
|
baseStyle: 'testresult', //optional
|
|
userid: '', //required override
|
|
messageloc: 1 //before == 0 or after == 1
|
|
};
|
|
var opts = $.extend(defaults, options);
|
|
|
|
return this.each(function() {
|
|
var obj = $(this);
|
|
|
|
$(obj).unbind().keyup(function() {
|
|
|
|
var results = $.fn.teststrength($(this).val(), opts.userid, opts);
|
|
|
|
if (opts.messageloc === 1) {
|
|
$(this).next("." + opts.baseStyle).remove();
|
|
$(this).after("<span class=\"" + opts.baseStyle + "\"><span></span></span>");
|
|
$(this).next("." + opts.baseStyle).addClass($(this).resultStyle).find("span").text(results);
|
|
}
|
|
else {
|
|
$(this).prev("." + opts.baseStyle).remove();
|
|
$(this).before("<span class=\"" + opts.baseStyle + "\"><span></span></span>");
|
|
$(this).prev("." + opts.baseStyle).addClass($(this).resultStyle).find("span").text(results);
|
|
}
|
|
});
|
|
|
|
//FUNCTIONS
|
|
$.fn.teststrength = function(password, username, option) {
|
|
var score = 0;
|
|
|
|
//password < 4
|
|
if (password.length < 4) { this.resultStyle = option.shortPass; return $(this).shortPass; }
|
|
|
|
//password == user name
|
|
if (password.toLowerCase() == username.toLowerCase()) { this.resultStyle = option.badPass; return $(this).samePassword; }
|
|
|
|
//password length
|
|
score += password.length // 4;
|
|
score += ($.fn.checkRepetition(1, password).length - password.length) // 1;
|
|
score += ($.fn.checkRepetition(2, password).length - password.length) // 1;
|
|
score += ($.fn.checkRepetition(3, password).length - password.length) // 1;
|
|
score += ($.fn.checkRepetition(4, password).length - password.length) // 1;
|
|
|
|
//password has 3 numbers
|
|
if (password.match(/(.*[0-9].*[0-9].*[0-9])/)) { score += 5; }
|
|
|
|
//password has 2 symbols
|
|
if (password.match(/(.*[!,@,#,$,%,^,&,*,?,_,~].*[!,@,#,$,%,^,&,*,?,_,~])/)) { score += 5; }
|
|
|
|
//password has Upper and Lower chars
|
|
if (password.match(/([a-z].*[A-Z])|([A-Z].*[a-z])/)) { score += 10; }
|
|
|
|
//password has number and chars
|
|
if (password.match(/([a-zA-Z])/) && password.match(/([0-9])/)) { score += 15; }
|
|
//
|
|
//password has number and symbol
|
|
if (password.match(/([!,@,#,$,%,^,&,*,?,_,~])/) && password.match(/([0-9])/)) { score += 15; }
|
|
|
|
//password has char and symbol
|
|
if (password.match(/([!,@,#,$,%,^,&,*,?,_,~])/) && password.match(/([a-zA-Z])/)) { score += 15; }
|
|
|
|
//password is just a numbers or chars
|
|
if (password.match(/^\w+$/) || password.match(/^\d+$/)) { score -= 10; }
|
|
|
|
//verifying 0 < score < 100
|
|
if (score < 0) { score = 0; }
|
|
if (score > 100) { score = 100; }
|
|
|
|
if (score < 34) { this.resultStyle = option.badPass; return $(this).badPass; }
|
|
if (score < 68) { this.resultStyle = option.goodPass; return $(this).goodPass; }
|
|
|
|
this.resultStyle = option.strongPass;
|
|
return $(this).strongPass;
|
|
|
|
};
|
|
|
|
});
|
|
};
|
|
})(jQuery);
|
|
|
|
|
|
$.fn.checkRepetition = function(pLen, str) {
|
|
var res = '';
|
|
for (var i = 0; i < str.length; i++) {
|
|
var repeated = true;
|
|
|
|
for (var 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;
|
|
};
|