js-uploader
Version:
A JavaScript library for file upload
170 lines • 6.45 kB
JavaScript
;
/* eslint-disable */
Object.defineProperty(exports, "__esModule", { value: true });
exports.urlSafeBase64Decode = exports.urlSafeBase64Encode = exports.base64Decode = exports.base64Encode = exports.utf8Encode = void 0;
function utf8Encode(argString) {
// http://kevin.vanzonneveld.net
// + original by: Webtoolkit.info (http://www.webtoolkit.info/)
// + improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
// + improved by: sowberry
// + tweaked by: Jack
// + bugfixed by: Onno Marsman
// + improved by: Yves Sucaet
// + bugfixed by: Onno Marsman
// + bugfixed by: Ulrich
// + bugfixed by: Rafal Kukawski
// + improved by: kirilloid
// + bugfixed by: kirilloid
// * example 1: this.utf8Encode('Kevin van Zonneveld')
// * returns 1: 'Kevin van Zonneveld'
if (argString === null || typeof argString === 'undefined') {
return '';
}
var string = argString + ''; // .replace(/\r\n/g, '\n').replace(/\r/g, '\n')
var utftext = '', start, end, stringl = 0;
start = end = 0;
stringl = string.length;
for (var n = 0; n < stringl; n++) {
var c1 = string.charCodeAt(n);
var enc = null;
if (c1 < 128) {
end++;
}
else if (c1 > 127 && c1 < 2048) {
enc = String.fromCharCode((c1 >> 6) | 192, (c1 & 63) | 128);
}
else if (((c1 & 0xf800) ^ 0xd800) > 0) {
enc = String.fromCharCode((c1 >> 12) | 224, ((c1 >> 6) & 63) | 128, (c1 & 63) | 128);
}
else {
// surrogate pairs
if (((c1 & 0xfc00) ^ 0xd800) > 0) {
throw new RangeError('Unmatched trail surrogate at ' + n);
}
var c2 = string.charCodeAt(++n);
if (((c2 & 0xfc00) ^ 0xdc00) > 0) {
throw new RangeError('Unmatched lead surrogate at ' + (n - 1));
}
c1 = ((c1 & 0x3ff) << 10) + (c2 & 0x3ff) + 0x10000;
enc = String.fromCharCode((c1 >> 18) | 240, ((c1 >> 12) & 63) | 128, ((c1 >> 6) & 63) | 128, (c1 & 63) | 128);
}
if (enc !== null) {
if (end > start) {
utftext += string.slice(start, end);
}
utftext += enc;
start = end = n + 1;
}
}
if (end > start) {
utftext += string.slice(start, stringl);
}
return utftext;
}
exports.utf8Encode = utf8Encode;
function base64Encode(data) {
// http://kevin.vanzonneveld.net
// + original by: Tyler Akins (http://rumkin.com)
// + improved by: Bayron Guevara
// + improved by: Thunder.m
// + improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
// + bugfixed by: Pellentesque Malesuada
// + improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
// - depends on: this.utf8Encode
// * example 1: this.base64Encode('Kevin van Zonneveld')
// * returns 1: 'S2V2aW4gdmFuIFpvbm5ldmVsZA=='
// mozilla has this native
// - but breaks in 2.0.0.12!
// if (typeof this.window['atob'] == 'function') {
// return atob(data)
// }
var b64 = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
var o1, o2, o3, h1, h2, h3, h4, bits, i = 0, ac = 0, enc = '', tmp_arr = [];
if (!data) {
return data;
}
data = utf8Encode(data + '');
do {
// pack three octets into four hexets
o1 = data.charCodeAt(i++);
o2 = data.charCodeAt(i++);
o3 = data.charCodeAt(i++);
bits = (o1 << 16) | (o2 << 8) | o3;
h1 = (bits >> 18) & 0x3f;
h2 = (bits >> 12) & 0x3f;
h3 = (bits >> 6) & 0x3f;
h4 = bits & 0x3f;
// use hexets to index into b64, and append result to encoded string
tmp_arr[ac++] = b64.charAt(h1) + b64.charAt(h2) + b64.charAt(h3) + b64.charAt(h4);
} while (i < data.length);
enc = tmp_arr.join('');
switch (data.length % 3) {
case 1:
enc = enc.slice(0, -2) + '==';
break;
case 2:
enc = enc.slice(0, -1) + '=';
break;
}
return enc;
}
exports.base64Encode = base64Encode;
function base64Decode(data) {
// http://kevin.vanzonneveld.net
// + original by: Tyler Akins (http://rumkin.com)
// + improved by: Thunder.m
// + input by: Aman Gupta
// + improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
// + bugfixed by: Onno Marsman
// + bugfixed by: Pellentesque Malesuada
// + improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
// + input by: Brett Zamir (http://brett-zamir.me)
// + bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
// * example 1: base64_decode('S2V2aW4gdmFuIFpvbm5ldmVsZA==')
// * returns 1: 'Kevin van Zonneveld'
// mozilla has this native
// - but breaks in 2.0.0.12!
// if (typeof this.window['atob'] == 'function') {
// return atob(data)
// }
var b64 = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
var o1, o2, o3, h1, h2, h3, h4, bits, i = 0, ac = 0, dec = '', tmp_arr = [];
if (!data) {
return data;
}
data += '';
do {
// unpack four hexets into three octets using index points in b64
h1 = b64.indexOf(data.charAt(i++));
h2 = b64.indexOf(data.charAt(i++));
h3 = b64.indexOf(data.charAt(i++));
h4 = b64.indexOf(data.charAt(i++));
bits = (h1 << 18) | (h2 << 12) | (h3 << 6) | h4;
o1 = (bits >> 16) & 0xff;
o2 = (bits >> 8) & 0xff;
o3 = bits & 0xff;
if (h3 === 64) {
tmp_arr[ac++] = String.fromCharCode(o1);
}
else if (h4 === 64) {
tmp_arr[ac++] = String.fromCharCode(o1, o2);
}
else {
tmp_arr[ac++] = String.fromCharCode(o1, o2, o3);
}
} while (i < data.length);
dec = tmp_arr.join('');
return dec;
}
exports.base64Decode = base64Decode;
function urlSafeBase64Encode(v) {
v = base64Encode(v);
return v.replace(/\//g, '_').replace(/\+/g, '-');
}
exports.urlSafeBase64Encode = urlSafeBase64Encode;
function urlSafeBase64Decode(v) {
v = v.replace(/_/g, '/').replace(/-/g, '+');
return base64Decode(v);
}
exports.urlSafeBase64Decode = urlSafeBase64Decode;
//# sourceMappingURL=base64.js.map