138 lines
3.7 KiB
JavaScript
138 lines
3.7 KiB
JavaScript
/**
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* Strengthify - show the weakness of a password (uses zxcvbn for this)
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* https://github.com/MorrisJobke/strengthify
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*
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* Version: 0.4.2
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* Author: Morris Jobke (github.com/MorrisJobke)
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*
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* License:
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2013-2015 Morris Jobke <morris.jobke@gmail.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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/* global jQuery */
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(function ($) {
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$.fn.strengthify = function(paramOptions) {
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var me = this,
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defaults = {
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zxcvbn: 'zxcvbn/zxcvbn.js',
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titles: [
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'Weakest',
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'Weak',
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'So-so',
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'Good',
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'Perfect'
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]
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},
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options = $.extend(defaults, paramOptions),
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drawStrengthify = function() {
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var password = $(me).val(),
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// hide strengthigy if no input is provided
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opacity = (password === '') ? 0 : 1,
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// calculate result
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result = zxcvbn(password),
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css = '',
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// cache jQuery selections
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$container = $('.strengthify-container'),
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$wrapper = $('.strengthify-wrapper');
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$wrapper.children().css(
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'opacity',
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opacity
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).css(
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'-ms-filter',
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'"progid:DXImageTransform.Microsoft.Alpha(Opacity=' + opacity * 100 + ')"'
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);
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// style strengthify bar
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// possible scores: 0-4
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switch(result.score) {
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case 0:
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case 1:
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css = 'password-bad';
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break;
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case 2:
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css = 'password-medium';
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break;
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case 3:
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case 4:
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css = 'password-good';
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break;
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}
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$container
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.attr('class', css + ' strengthify-container')
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// possible scores: 0-4
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.css(
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'width',
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// if score is '0' it will be changed to '1' to
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// not hide strengthify if the password is extremely weak
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((result.score === 0 ? 1 : result.score) * 25) + '%'
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);
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// set a title for the wrapper
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$wrapper.attr(
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'title',
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options.titles[result.score]
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).tooltip({
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placement: 'bottom',
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trigger: 'manual',
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}).tooltip(
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'show'
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);
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if(opacity === 0) {
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$wrapper.tooltip(
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'hide'
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);
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}
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// reset state for empty string password
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if(password === '') {
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$container.css('width', 0);
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}
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};
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// add elements
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$('.strengthify-wrapper')
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.append('<div class="strengthify-bg" />')
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.append('<div class="strengthify-container" />')
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.append('<div class="strengthify-separator" style="left: 25%" />')
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.append('<div class="strengthify-separator" style="left: 50%" />')
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.append('<div class="strengthify-separator" style="left: 75%" />');
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me.parents().on('scroll', drawStrengthify);
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$.ajax({
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cache: true,
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dataType: 'script',
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url: options.zxcvbn
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}).done(function() {
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me.bind('keyup input change', drawStrengthify);
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});
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return me;
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};
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}(jQuery));
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