| | |
| | | }; |
| | | |
| | | |
| | | // This code was written by Tyler Akins and has been placed in the |
| | | // public domain. It would be nice if you left this header intact. |
| | | // Base64 code from Tyler Akins -- http://rumkin.com |
| | | var Base64 = (function () { |
| | | var keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="; |
| | | |
| | | // private method for UTF-8 encoding |
| | | var utf8_encode = function(string) { |
| | | string = string.replace(/\r\n/g, "\n"); |
| | | var utftext = ''; |
| | | |
| | | for (var n = 0; n < string.length; n++) { |
| | | var c = string.charCodeAt(n); |
| | | |
| | | if (c < 128) { |
| | | utftext += String.fromCharCode(c); |
| | | } |
| | | else if(c > 127 && c < 2048) { |
| | | utftext += String.fromCharCode((c >> 6) | 192); |
| | | utftext += String.fromCharCode((c & 63) | 128); |
| | | } |
| | | else { |
| | | utftext += String.fromCharCode((c >> 12) | 224); |
| | | utftext += String.fromCharCode(((c >> 6) & 63) | 128); |
| | | utftext += String.fromCharCode((c & 63) | 128); |
| | | } |
| | | } |
| | | |
| | | return utftext; |
| | | }; |
| | | |
| | | // private method for UTF-8 decoding |
| | | var utf8_decode = function (utftext) { |
| | | var i = 0, string = '', c = c2 = c3 = 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; |
| | | }; |
| | | |
| | | var obj = { |
| | | /** |
| | |
| | | catch (e) {}; |
| | | } |
| | | |
| | | input = utf8_encode(input); |
| | | |
| | | var chr1, chr2, chr3, enc1, enc2, enc3, enc4, i = 0, output = '', len = input.length; |
| | | |
| | | do { |
| | | while (i < len) { |
| | | chr1 = input.charCodeAt(i++); |
| | | chr2 = input.charCodeAt(i++); |
| | | chr3 = input.charCodeAt(i++); |
| | |
| | | output = output |
| | | + keyStr.charAt(enc1) + keyStr.charAt(enc2) |
| | | + keyStr.charAt(enc3) + keyStr.charAt(enc4); |
| | | } while (i < len); |
| | | } |
| | | |
| | | return output; |
| | | }, |
| | |
| | | if (typeof(window.atob) === 'function') { |
| | | // it may fail on unicode characters, the fallback can handle them |
| | | try { |
| | | return atob(input); |
| | | return utf8_decode(atob(input)); |
| | | } |
| | | catch (e) {}; |
| | | } |
| | |
| | | input = input.replace(/[^A-Za-z0-9\+\/\=]/g, ""); |
| | | len = input.length; |
| | | |
| | | do { |
| | | while (i < len) { |
| | | enc1 = keyStr.indexOf(input.charAt(i++)); |
| | | enc2 = keyStr.indexOf(input.charAt(i++)); |
| | | enc3 = keyStr.indexOf(input.charAt(i++)); |
| | |
| | | output = output + String.fromCharCode(chr2); |
| | | if (enc4 != 64) |
| | | output = output + String.fromCharCode(chr3); |
| | | } while (i < len); |
| | | } |
| | | |
| | | return output; |
| | | return utf8_decode(output); |
| | | } |
| | | }; |
| | | |