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| /*jslint adsafe: false, bitwise: true, browser: true, cap: false, css: false, | ||
| debug: false, devel: true, eqeqeq: true, es5: false, evil: false, | ||
| forin: false, fragment: false, immed: true, laxbreak: false, newcap: true, | ||
| nomen: false, on: false, onevar: true, passfail: false, plusplus: true, | ||
| regexp: false, rhino: true, safe: false, strict: false, sub: false, | ||
| undef: true, white: false, widget: false, windows: false */ | ||
| /*global jQuery: false, window: false */ | ||
| //"use strict"; | ||
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| /* | ||
| * Original code (c) 2010 Nick Galbreath | ||
| * http://code.google.com/p/stringencoders/source/browse/#svn/trunk/javascript | ||
| * | ||
| * jQuery port (c) 2010 Carlo Zottmann | ||
| * http://github.com/carlo/jquery-base64 | ||
| * | ||
| * Permission is hereby granted, free of charge, to any person | ||
| * obtaining a copy of this software and associated documentation | ||
| * files (the "Software"), to deal in the Software without | ||
| * restriction, including without limitation the rights to use, | ||
| * copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| * copies of the Software, and to permit persons to whom the | ||
| * Software is furnished to do so, subject to the following | ||
| * conditions: | ||
| * | ||
| * The above copyright notice and this permission notice shall be | ||
| * included in all copies or substantial portions of the Software. | ||
| * | ||
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | ||
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES | ||
| * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | ||
| * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT | ||
| * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, | ||
| * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | ||
| * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | ||
| * OTHER DEALINGS IN THE SOFTWARE. | ||
| */ | ||
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| /* base64 encode/decode compatible with window.btoa/atob | ||
| * | ||
| * window.atob/btoa is a Firefox extension to convert binary data (the "b") | ||
| * to base64 (ascii, the "a"). | ||
| * | ||
| * It is also found in Safari and Chrome. It is not available in IE. | ||
| * | ||
| * if (!window.btoa) window.btoa = $.base64.encode | ||
| * if (!window.atob) window.atob = $.base64.decode | ||
| * | ||
| * The original spec's for atob/btoa are a bit lacking | ||
| * https://developer.mozilla.org/en/DOM/window.atob | ||
| * https://developer.mozilla.org/en/DOM/window.btoa | ||
| * | ||
| * window.btoa and $.base64.encode takes a string where charCodeAt is [0,255] | ||
| * If any character is not [0,255], then an exception is thrown. | ||
| * | ||
| * window.atob and $.base64.decode take a base64-encoded string | ||
| * If the input length is not a multiple of 4, or contains invalid characters | ||
| * then an exception is thrown. | ||
| */ | ||
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| jQuery.base64 = ( function( $ ) { | ||
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| var _PADCHAR = "=", | ||
| _ALPHA = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/", | ||
| _VERSION = "1.0"; | ||
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| function _getbyte64( s, i ) { | ||
| // This is oddly fast, except on Chrome/V8. | ||
| // Minimal or no improvement in performance by using a | ||
| // object with properties mapping chars to value (eg. 'A': 0) | ||
|
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| var idx = _ALPHA.indexOf( s.charAt( i ) ); | ||
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| if ( idx === -1 ) { | ||
| throw "Cannot decode base64"; | ||
| } | ||
|
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| return idx; | ||
| } | ||
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| function _decode( s ) { | ||
| var pads = 0, | ||
| i, | ||
| b10, | ||
| imax = s.length, | ||
| x = []; | ||
|
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| s = String( s ); | ||
|
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| if ( imax === 0 ) { | ||
| return s; | ||
| } | ||
|
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| if ( imax % 4 !== 0 ) { | ||
| throw "Cannot decode base64"; | ||
| } | ||
|
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| if ( s.charAt( imax - 1 ) === _PADCHAR ) { | ||
| pads = 1; | ||
|
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| if ( s.charAt( imax - 2 ) === _PADCHAR ) { | ||
| pads = 2; | ||
| } | ||
|
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| // either way, we want to ignore this last block | ||
| imax -= 4; | ||
| } | ||
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| for ( i = 0; i < imax; i += 4 ) { | ||
| b10 = ( _getbyte64( s, i ) << 18 ) | ( _getbyte64( s, i + 1 ) << 12 ) | ( _getbyte64( s, i + 2 ) << 6 ) | _getbyte64( s, i + 3 ); | ||
| x.push( String.fromCharCode( b10 >> 16, ( b10 >> 8 ) & 0xff, b10 & 0xff ) ); | ||
| } | ||
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| switch ( pads ) { | ||
| case 1: | ||
| b10 = ( _getbyte64( s, i ) << 18 ) | ( _getbyte64( s, i + 1 ) << 12 ) | ( _getbyte64( s, i + 2 ) << 6 ); | ||
| x.push( String.fromCharCode( b10 >> 16, ( b10 >> 8 ) & 0xff ) ); | ||
| break; | ||
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| case 2: | ||
| b10 = ( _getbyte64( s, i ) << 18) | ( _getbyte64( s, i + 1 ) << 12 ); | ||
| x.push( String.fromCharCode( b10 >> 16 ) ); | ||
| break; | ||
| } | ||
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| return x.join( "" ); | ||
| } | ||
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| function _getbyte( s, i ) { | ||
| var x = s.charCodeAt( i ); | ||
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| if ( x > 255 ) { | ||
| throw "INVALID_CHARACTER_ERR: DOM Exception 5"; | ||
| } | ||
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| return x; | ||
| } | ||
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| function _encode( s ) { | ||
| if ( arguments.length !== 1 ) { | ||
| throw "SyntaxError: exactly one argument required"; | ||
| } | ||
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| s = String( s ); | ||
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| var i, | ||
| b10, | ||
| x = [], | ||
| imax = s.length - s.length % 3; | ||
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| if ( s.length === 0 ) { | ||
| return s; | ||
| } | ||
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| for ( i = 0; i < imax; i += 3 ) { | ||
| b10 = ( _getbyte( s, i ) << 16 ) | ( _getbyte( s, i + 1 ) << 8 ) | _getbyte( s, i + 2 ); | ||
| x.push( _ALPHA.charAt( b10 >> 18 ) ); | ||
| x.push( _ALPHA.charAt( ( b10 >> 12 ) & 0x3F ) ); | ||
| x.push( _ALPHA.charAt( ( b10 >> 6 ) & 0x3f ) ); | ||
| x.push( _ALPHA.charAt( b10 & 0x3f ) ); | ||
| } | ||
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| switch ( s.length - imax ) { | ||
| case 1: | ||
| b10 = _getbyte( s, i ) << 16; | ||
| x.push( _ALPHA.charAt( b10 >> 18 ) + _ALPHA.charAt( ( b10 >> 12 ) & 0x3F ) + _PADCHAR + _PADCHAR ); | ||
| break; | ||
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| case 2: | ||
| b10 = ( _getbyte( s, i ) << 16 ) | ( _getbyte( s, i + 1 ) << 8 ); | ||
| x.push( _ALPHA.charAt( b10 >> 18 ) + _ALPHA.charAt( ( b10 >> 12 ) & 0x3F ) + _ALPHA.charAt( ( b10 >> 6 ) & 0x3f ) + _PADCHAR ); | ||
| break; | ||
| } | ||
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| return x.join( "" ); | ||
| } | ||
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| return { | ||
| decode: _decode, | ||
| encode: _encode, | ||
| VERSION: _VERSION | ||
| }; | ||
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| }( jQuery ) ); | ||
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| jQuery.base64 = (function($) { | ||
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| // private property | ||
| var keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="; | ||
|
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| // private method for UTF-8 encoding | ||
| function utf8Encode(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; | ||
| } | ||
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| function encode(input) { | ||
| var output = ""; | ||
| var chr1, chr2, chr3, enc1, enc2, enc3, enc4; | ||
| var i = 0; | ||
| input = utf8Encode(input); | ||
| while (i < input.length) { | ||
| chr1 = input.charCodeAt(i++); | ||
| chr2 = input.charCodeAt(i++); | ||
| chr3 = input.charCodeAt(i++); | ||
| enc1 = chr1 >> 2; | ||
| enc2 = ((chr1 & 3) << 4) | (chr2 >> 4); | ||
| enc3 = ((chr2 & 15) << 2) | (chr3 >> 6); | ||
| enc4 = chr3 & 63; | ||
| if (isNaN(chr2)) { | ||
| enc3 = enc4 = 64; | ||
| } else if (isNaN(chr3)) { | ||
| enc4 = 64; | ||
| } | ||
| output = output + | ||
| keyStr.charAt(enc1) + keyStr.charAt(enc2) + | ||
| keyStr.charAt(enc3) + keyStr.charAt(enc4); | ||
| } | ||
| return output; | ||
| } | ||
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| return { | ||
| encode: function (str) { | ||
| return encode(str); | ||
| } | ||
| }; | ||
|
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| }(jQuery)); |