/** * DZ Email Decryptormatic * @version 1.00 * @author Ryan Sexton * * @note Remove this entire comment block before posting it live * * Decrypt encrypted emails * * How to use: * Will can all A tags * $('a').DZEmailDecryptomatic(); * * Will scan all A tags with the class name (this can be whatever you want) * $('a.dzemails').DZEmailDecryptomatic(); * * How it works: * Looks for an href attribute, if it has one it then * checks to see if there's a mailto: text in that href tag * If the information after the mailto: tab is NOT an email address * then it processes it. * * Example that does not get decrypted * test@test.com * * Example that does get decrypted * asdlfjaasdfljasdf * * Another words, it tries to find encrypted mailtos and decrypt them * * @downside this degrades poorly, if someone doesn't have javascript * * Real world example * * dGVzdEB0ZXN0LmNvbQ==

The above should say test@test.com

*/ (function($) { $.fn.DZEmailDecryptomatic = function(a) { return this.each(function() { if ($(this).attr('href') != undefined) { if ($(this).attr('href').substr(0, 7) == 'mailto:') { if ($.__isEmail($(this).attr('href').substr(7)) == false) { $(this).attr('href', 'mailto:'+$.__b64decode($(this).attr('href').substr(6))); $(this).text($.__b64decode($(this).text())); } } } }); } $.__isEmail = function(str) { var regex = /^[a-zA-Z0-9._-]+@([a-zA-Z0-9.-]+\.)+[a-zA-Z0-9.-]{2,4}$/; return regex.test(str); } $.__b64decode = function(input) { var output = ""; var chr1, chr2, chr3; var enc1, enc2, enc3, enc4; var i = 0; input = input.replace(/[^A-Za-z0-9\+\/\=]/g, ""); _keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="; while (i < input.length) { enc1 = _keyStr.indexOf(input.charAt(i++)); enc2 = _keyStr.indexOf(input.charAt(i++)); enc3 = _keyStr.indexOf(input.charAt(i++)); enc4 = _keyStr.indexOf(input.charAt(i++)); chr1 = (enc1 << 2) | (enc2 >> 4); chr2 = ((enc2 & 15) << 4) | (enc3 >> 2); chr3 = ((enc3 & 3) << 6) | enc4; output = output + String.fromCharCode(chr1); if (enc3 != 64) { output = output + String.fromCharCode(chr2); } if (enc4 != 64) { output = output + String.fromCharCode(chr3); } } output = $.__utf8_decode(output); return output; } $.__utf8_decode = function(utftext) { var string = ""; var i = 0; var c = c1 = c2 = 0; while ( i < utftext.length ) { c = utftext.charCodeAt(i); if (c < 128) { string += String.fromCharCode(c); i++; } else if((c > 191) && (c < 224)) { c2 = utftext.charCodeAt(i+1); string += String.fromCharCode(((c & 31) << 6) | (c2 & 63)); i += 2; } else { c2 = utftext.charCodeAt(i+1); c3 = utftext.charCodeAt(i+2); string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63)); i += 3; } } return string; } })(jQuery);