ecomp-sdk-app/src/main/webapp/app/policyApp/libs/jspdf/libs/base64.js

   1
   2 /**
   3 *
   4 *  Base64 encode / decode
   5 *  http://www.webtoolkit.info/
   6 *
   7 **/
   8
   9 var Base64 = {
  10
  11         // private property
  12         _keyStr : "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",
  13
  14         // public method for encoding
  15         encode : function (input) {
  16                 var output = "";
  17                 var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
  18                 var i = 0;
  19
  20                 input = Base64._utf8_encode(input);
  21
  22                 while (i < input.length) {
  23
  24                         chr1 = input.charCodeAt(i++);
  25                         chr2 = input.charCodeAt(i++);
  26                         chr3 = input.charCodeAt(i++);
  27
  28                         enc1 = chr1 >> 2;
  29                         enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
  30                         enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
  31                         enc4 = chr3 & 63;
  32
  33                         if (isNaN(chr2)) {
  34                                 enc3 = enc4 = 64;
  35                         } else if (isNaN(chr3)) {
  36                                 enc4 = 64;
  37                         }
  38
  39                         output = output +
  40                         this._keyStr.charAt(enc1) + this._keyStr.charAt(enc2) +
  41                         this._keyStr.charAt(enc3) + this._keyStr.charAt(enc4);
  42
  43                 }
  44
  45                 return output;
  46         },
  47
  48         // public method for decoding
  49         decode : function (input) {
  50                 var output = "";
  51                 var chr1, chr2, chr3;
  52                 var enc1, enc2, enc3, enc4;
  53                 var i = 0;
  54
  55                 input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
  56
  57                 while (i < input.length) {
  58
  59                         enc1 = this._keyStr.indexOf(input.charAt(i++));
  60                         enc2 = this._keyStr.indexOf(input.charAt(i++));
  61                         enc3 = this._keyStr.indexOf(input.charAt(i++));
  62                         enc4 = this._keyStr.indexOf(input.charAt(i++));
  63
  64                         chr1 = (enc1 << 2) | (enc2 >> 4);
  65                         chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
  66                         chr3 = ((enc3 & 3) << 6) | enc4;
  67
  68                         output = output + String.fromCharCode(chr1);
  69
  70                         if (enc3 != 64) {
  71                                 output = output + String.fromCharCode(chr2);
  72                         }
  73                         if (enc4 != 64) {
  74                                 output = output + String.fromCharCode(chr3);
  75                         }
  76
  77                 }
  78
  79                 output = Base64._utf8_decode(output);
  80
  81                 return output;
  82
  83         },
  84
  85         // private method for UTF-8 encoding
  86         _utf8_encode : function (string) {
  87                 string = string.replace(/\r\n/g,"\n");
  88                 var utftext = "";
  89
  90                 for (var n = 0; n < string.length; n++) {
  91
  92                         var c = string.charCodeAt(n);
  93
  94                         if (c < 128) {
  95                                 utftext += String.fromCharCode(c);
  96                         }
  97                         else if((c > 127) && (c < 2048)) {
  98                                 utftext += String.fromCharCode((c >> 6) | 192);
  99                                 utftext += String.fromCharCode((c & 63) | 128);
 100                         }
 101                         else {
 102                                 utftext += String.fromCharCode((c >> 12) | 224);
 103                                 utftext += String.fromCharCode(((c >> 6) & 63) | 128);
 104                                 utftext += String.fromCharCode((c & 63) | 128);
 105                         }
 106
 107                 }
 108
 109                 return utftext;
 110         },
 111
 112         // private method for UTF-8 decoding
 113         _utf8_decode : function (utftext) {
 114                 var string = "";
 115                 var i = 0;
 116                 var c = c1 = c2 = 0;
 117
 118                 while ( i < utftext.length ) {
 119
 120                         c = utftext.charCodeAt(i);
 121
 122                         if (c < 128) {
 123                                 string += String.fromCharCode(c);
 124                                 i++;
 125                         }
 126                         else if((c > 191) && (c < 224)) {
 127                                 c2 = utftext.charCodeAt(i+1);
 128                                 string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
 129                                 i += 2;
 130                         }
 131                         else {
 132                                 c2 = utftext.charCodeAt(i+1);
 133                                 c3 = utftext.charCodeAt(i+2);
 134                                 string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
 135                                 i += 3;
 136                         }
 137
 138                 }
 139
 140                 return string;
 141         }
 142
 143 }