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Add a password strength evaluation bar
Modify the register and change_password pages to show a bar evaluating the strength of the password. Bar displays in red for passwords < 6 chars or below a certain minimum complexity; green otherwise. Adds a dependency on Complexify, a password evaluator written by Dan Palmer.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,192 @@ | ||
| /* | ||
| http://github.com/danpalmer/jquery.complexify.js | ||
| This code is distributed under the WTFPL v2: | ||
| */ | ||
| (function ($) { | ||
|
|
||
| $.fn.extend({ | ||
| complexify: function(options, callback) { | ||
|
|
||
| var MIN_COMPLEXITY = 49; // 12 chars with Upper, Lower and Number | ||
| var MAX_COMPLEXITY = 120; // 25 chars, all charsets | ||
| var CHARSETS = [ | ||
| // Commonly Used | ||
| //////////////////// | ||
| [0x0020, 0x0020], // Space | ||
| [0x0030, 0x0039], // Numbers | ||
| [0x0041, 0x005A], // Uppercase | ||
| [0x0061, 0x007A], // Lowercase | ||
| [0x0021, 0x002F], // Punctuation | ||
| [0x003A, 0x0040], // Punctuation | ||
| [0x005B, 0x0060], // Punctuation | ||
| [0x007B, 0x007E], // Punctuation | ||
| // Everything Else | ||
| //////////////////// | ||
| [0x0080, 0x00FF], // Latin-1 Supplement | ||
| [0x0100, 0x017F], // Latin Extended-A | ||
| [0x0180, 0x024F], // Latin Extended-B | ||
| [0x0250, 0x02AF], // IPA Extensions | ||
| [0x02B0, 0x02FF], // Spacing Modifier Letters | ||
| [0x0300, 0x036F], // Combining Diacritical Marks | ||
| [0x0370, 0x03FF], // Greek | ||
| [0x0400, 0x04FF], // Cyrillic | ||
| [0x0530, 0x058F], // Armenian | ||
| [0x0590, 0x05FF], // Hebrew | ||
| [0x0600, 0x06FF], // Arabic | ||
| [0x0700, 0x074F], // Syriac | ||
| [0x0780, 0x07BF], // Thaana | ||
| [0x0900, 0x097F], // Devanagari | ||
| [0x0980, 0x09FF], // Bengali | ||
| [0x0A00, 0x0A7F], // Gurmukhi | ||
| [0x0A80, 0x0AFF], // Gujarati | ||
| [0x0B00, 0x0B7F], // Oriya | ||
| [0x0B80, 0x0BFF], // Tamil | ||
| [0x0C00, 0x0C7F], // Telugu | ||
| [0x0C80, 0x0CFF], // Kannada | ||
| [0x0D00, 0x0D7F], // Malayalam | ||
| [0x0D80, 0x0DFF], // Sinhala | ||
| [0x0E00, 0x0E7F], // Thai | ||
| [0x0E80, 0x0EFF], // Lao | ||
| [0x0F00, 0x0FFF], // Tibetan | ||
| [0x1000, 0x109F], // Myanmar | ||
| [0x10A0, 0x10FF], // Georgian | ||
| [0x1100, 0x11FF], // Hangul Jamo | ||
| [0x1200, 0x137F], // Ethiopic | ||
| [0x13A0, 0x13FF], // Cherokee | ||
| [0x1400, 0x167F], // Unified Canadian Aboriginal Syllabics | ||
| [0x1680, 0x169F], // Ogham | ||
| [0x16A0, 0x16FF], // Runic | ||
| [0x1780, 0x17FF], // Khmer | ||
| [0x1800, 0x18AF], // Mongolian | ||
| [0x1E00, 0x1EFF], // Latin Extended Additional | ||
| [0x1F00, 0x1FFF], // Greek Extended | ||
| [0x2000, 0x206F], // General Punctuation | ||
| [0x2070, 0x209F], // Superscripts and Subscripts | ||
| [0x20A0, 0x20CF], // Currency Symbols | ||
| [0x20D0, 0x20FF], // Combining Marks for Symbols | ||
| [0x2100, 0x214F], // Letterlike Symbols | ||
| [0x2150, 0x218F], // Number Forms | ||
| [0x2190, 0x21FF], // Arrows | ||
| [0x2200, 0x22FF], // Mathematical Operators | ||
| [0x2300, 0x23FF], // Miscellaneous Technical | ||
| [0x2400, 0x243F], // Control Pictures | ||
| [0x2440, 0x245F], // Optical Character Recognition | ||
| [0x2460, 0x24FF], // Enclosed Alphanumerics | ||
| [0x2500, 0x257F], // Box Drawing | ||
| [0x2580, 0x259F], // Block Elements | ||
| [0x25A0, 0x25FF], // Geometric Shapes | ||
| [0x2600, 0x26FF], // Miscellaneous Symbols | ||
| [0x2700, 0x27BF], // Dingbats | ||
| [0x2800, 0x28FF], // Braille Patterns | ||
| [0x2E80, 0x2EFF], // CJK Radicals Supplement | ||
| [0x2F00, 0x2FDF], // Kangxi Radicals | ||
| [0x2FF0, 0x2FFF], // Ideographic Description Characters | ||
| [0x3000, 0x303F], // CJK Symbols and Punctuation | ||
| [0x3040, 0x309F], // Hiragana | ||
| [0x30A0, 0x30FF], // Katakana | ||
| [0x3100, 0x312F], // Bopomofo | ||
| [0x3130, 0x318F], // Hangul Compatibility Jamo | ||
| [0x3190, 0x319F], // Kanbun | ||
| [0x31A0, 0x31BF], // Bopomofo Extended | ||
| [0x3200, 0x32FF], // Enclosed CJK Letters and Months | ||
| [0x3300, 0x33FF], // CJK Compatibility | ||
| [0x3400, 0x4DB5], // CJK Unified Ideographs Extension A | ||
| [0x4E00, 0x9FFF], // CJK Unified Ideographs | ||
| [0xA000, 0xA48F], // Yi Syllables | ||
| [0xA490, 0xA4CF], // Yi Radicals | ||
| [0xAC00, 0xD7A3], // Hangul Syllables | ||
| [0xD800, 0xDB7F], // High Surrogates | ||
| [0xDB80, 0xDBFF], // High Private Use Surrogates | ||
| [0xDC00, 0xDFFF], // Low Surrogates | ||
| [0xE000, 0xF8FF], // Private Use | ||
| [0xF900, 0xFAFF], // CJK Compatibility Ideographs | ||
| [0xFB00, 0xFB4F], // Alphabetic Presentation Forms | ||
| [0xFB50, 0xFDFF], // Arabic Presentation Forms-A | ||
| [0xFE20, 0xFE2F], // Combining Half Marks | ||
| [0xFE30, 0xFE4F], // CJK Compatibility Forms | ||
| [0xFE50, 0xFE6F], // Small Form Variants | ||
| [0xFE70, 0xFEFE], // Arabic Presentation Forms-B | ||
| [0xFEFF, 0xFEFF], // Specials | ||
| [0xFF00, 0xFFEF], // Halfwidth and Fullwidth Forms | ||
| [0xFFF0, 0xFFFD] // Specials | ||
| ]; | ||
|
|
||
| var defaults = { | ||
| minimumChars: 8, | ||
| strengthScaleFactor: 1, | ||
| bannedPasswords: window.COMPLEXIFY_BANLIST || [], | ||
| banMode: 'strict' // (strict|loose) | ||
| }; | ||
|
|
||
| if($.isFunction(options) && !callback) { | ||
| callback = options; | ||
| options = {}; | ||
| } | ||
|
|
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| options = $.extend(defaults, options); | ||
|
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| function additionalComplexityForCharset(str, charset) { | ||
| for (var i = str.length - 1; i >= 0; i--) { | ||
| if (charset[0] <= str.charCodeAt(i) && str.charCodeAt(i) <= charset[1]) { | ||
| return charset[1] - charset[0] + 1; | ||
| } | ||
| } | ||
| return 0; | ||
| } | ||
|
|
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| function inBanlist(str) { | ||
| if (options.banMode === 'strict') { | ||
| for (var i = 0; i < options.bannedPasswords.length; i++) { | ||
| if (str.toLowerCase().indexOf(options.bannedPasswords[i].toLowerCase()) !== -1) { | ||
| return true; | ||
| } | ||
| } | ||
| return false; | ||
| } else { | ||
| return $.inArray(str, options.bannedPasswords) > -1 ? true : false; | ||
| } | ||
| } | ||
|
|
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| function evaluateSecurity() { | ||
| var password = $(this).val(); | ||
| var complexity = 0, valid = false; | ||
|
|
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| // Reset complexity to 0 when banned password is found | ||
| if (!inBanlist(password)) { | ||
|
|
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| // Add character complexity | ||
| for (var i = CHARSETS.length - 1; i >= 0; i--) { | ||
| complexity += additionalComplexityForCharset(password, CHARSETS[i]); | ||
| } | ||
|
|
||
| } else { | ||
| complexity = 1; | ||
| } | ||
|
|
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| // Use natural log to produce linear scale | ||
| complexity = Math.log(Math.pow(complexity, password.length)) * (1/options.strengthScaleFactor); | ||
|
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| valid = (complexity > MIN_COMPLEXITY && password.length >= options.minimumChars); | ||
|
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| // Scale to percentage, so it can be used for a progress bar | ||
| complexity = (complexity / MAX_COMPLEXITY) * 100; | ||
| complexity = (complexity > 100) ? 100 : complexity; | ||
|
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| callback.call(this, valid, complexity); | ||
| } | ||
|
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| this.each(function () { | ||
| if($(this).val()) { | ||
| evaluateSecurity.apply(this); | ||
| } | ||
| }); | ||
|
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| return this.each(function () { | ||
| $(this).bind('keyup focus input propertychange mouseup', evaluateSecurity); | ||
| }); | ||
|
|
||
| } | ||
| }); | ||
|
|
||
| })(jQuery); |
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