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// Downloaded from: https://github.com/dankogai/js-base64/
// License: https://github.com/dankogai/js-base64/blob/main/LICENSE.md
//
// THIS FILE IS AUTOMATICALLY GENERATED! DO NOT EDIT BY HAND!
//
;
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined'
? module.exports = factory()
: typeof define === 'function' && define.amd
? define(factory) :
// cf. https://github.com/dankogai/js-base64/issues/119
(function () {
// existing version for noConflict()
var _Base64 = global.Base64;
var gBase64 = factory();
gBase64.noConflict = function () {
global.Base64 = _Base64;
return gBase64;
};
if (global.Meteor) { // Meteor.js
Base64 = gBase64;
}
global.Base64 = gBase64;
})();
}((typeof self !== 'undefined' ? self
: typeof window !== 'undefined' ? window
: typeof global !== 'undefined' ? global
: this), function () {
'use strict';
/**
* base64.ts
*
* Licensed under the BSD 3-Clause License.
* http://opensource.org/licenses/BSD-3-Clause
*
* References:
* http://en.wikipedia.org/wiki/Base64
*
* @author Dan Kogai (https://github.com/dankogai)
*/
var version = '3.7.2';
/**
* @deprecated use lowercase `version`.
*/
var VERSION = version;
var _hasatob = typeof atob === 'function';
var _hasbtoa = typeof btoa === 'function';
var _hasBuffer = typeof Buffer === 'function';
var _TD = typeof TextDecoder === 'function' ? new TextDecoder() : undefined;
var _TE = typeof TextEncoder === 'function' ? new TextEncoder() : undefined;
var b64ch = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
var b64chs = Array.prototype.slice.call(b64ch);
var b64tab = (function (a) {
var tab = {};
a.forEach(function (c, i) { return tab[c] = i; });
return tab;
})(b64chs);
var b64re = /^(?:[A-Za-z\d+\/]{4})*?(?:[A-Za-z\d+\/]{2}(?:==)?|[A-Za-z\d+\/]{3}=?)?$/;
var _fromCC = String.fromCharCode.bind(String);
var _U8Afrom = typeof Uint8Array.from === 'function'
? Uint8Array.from.bind(Uint8Array)
: function (it, fn) {
if (fn === void 0) { fn = function (x) { return x; }; }
return new Uint8Array(Array.prototype.slice.call(it, 0).map(fn));
};
var _mkUriSafe = function (src) { return src
.replace(/=/g, '').replace(/[+\/]/g, function (m0) { return m0 == '+' ? '-' : '_'; }); };
var _tidyB64 = function (s) { return s.replace(/[^A-Za-z0-9\+\/]/g, ''); };
/**
* polyfill version of `btoa`
*/
var btoaPolyfill = function (bin) {
// console.log('polyfilled');
var u32, c0, c1, c2, asc = '';
var pad = bin.length % 3;
for (var i = 0; i < bin.length;) {
if ((c0 = bin.charCodeAt(i++)) > 255 ||
(c1 = bin.charCodeAt(i++)) > 255 ||
(c2 = bin.charCodeAt(i++)) > 255)
throw new TypeError('invalid character found');
u32 = (c0 << 16) | (c1 << 8) | c2;
asc += b64chs[u32 >> 18 & 63]
+ b64chs[u32 >> 12 & 63]
+ b64chs[u32 >> 6 & 63]
+ b64chs[u32 & 63];
}
return pad ? asc.slice(0, pad - 3) + "===".substring(pad) : asc;
};
/**
* does what `window.btoa` of web browsers do.
* @param {String} bin binary string
* @returns {string} Base64-encoded string
*/
var _btoa = _hasbtoa ? function (bin) { return btoa(bin); }
: _hasBuffer ? function (bin) { return Buffer.from(bin, 'binary').toString('base64'); }
: btoaPolyfill;
var _fromUint8Array = _hasBuffer
? function (u8a) { return Buffer.from(u8a).toString('base64'); }
: function (u8a) {
// cf. https://stackoverflow.com/questions/12710001/how-to-convert-uint8-array-to-base64-encoded-string/12713326#12713326
var maxargs = 0x1000;
var strs = [];
for (var i = 0, l = u8a.length; i < l; i += maxargs) {
strs.push(_fromCC.apply(null, u8a.subarray(i, i + maxargs)));
}
return _btoa(strs.join(''));
};
/**
* converts a Uint8Array to a Base64 string.
* @param {boolean} [urlsafe] URL-and-filename-safe a la RFC4648 §5
* @returns {string} Base64 string
*/
var fromUint8Array = function (u8a, urlsafe) {
if (urlsafe === void 0) { urlsafe = false; }
return urlsafe ? _mkUriSafe(_fromUint8Array(u8a)) : _fromUint8Array(u8a);
};
// This trick is found broken https://github.com/dankogai/js-base64/issues/130
// const utob = (src: string) => unescape(encodeURIComponent(src));
// reverting good old fationed regexp
var cb_utob = function (c) {
if (c.length < 2) {
var cc = c.charCodeAt(0);
return cc < 0x80 ? c
: cc < 0x800 ? (_fromCC(0xc0 | (cc >>> 6))
+ _fromCC(0x80 | (cc & 0x3f)))
: (_fromCC(0xe0 | ((cc >>> 12) & 0x0f))
+ _fromCC(0x80 | ((cc >>> 6) & 0x3f))
+ _fromCC(0x80 | (cc & 0x3f)));
}
else {
var cc = 0x10000
+ (c.charCodeAt(0) - 0xD800) * 0x400
+ (c.charCodeAt(1) - 0xDC00);
return (_fromCC(0xf0 | ((cc >>> 18) & 0x07))
+ _fromCC(0x80 | ((cc >>> 12) & 0x3f))
+ _fromCC(0x80 | ((cc >>> 6) & 0x3f))
+ _fromCC(0x80 | (cc & 0x3f)));
}
};
var re_utob = /[\uD800-\uDBFF][\uDC00-\uDFFFF]|[^\x00-\x7F]/g;
/**
* @deprecated should have been internal use only.
* @param {string} src UTF-8 string
* @returns {string} UTF-16 string
*/
var utob = function (u) { return u.replace(re_utob, cb_utob); };
//
var _encode = _hasBuffer
? function (s) { return Buffer.from(s, 'utf8').toString('base64'); }
: _TE
? function (s) { return _fromUint8Array(_TE.encode(s)); }
: function (s) { return _btoa(utob(s)); };
/**
* converts a UTF-8-encoded string to a Base64 string.
* @param {boolean} [urlsafe] if `true` make the result URL-safe
* @returns {string} Base64 string
*/
var encode = function (src, urlsafe) {
if (urlsafe === void 0) { urlsafe = false; }
return urlsafe
? _mkUriSafe(_encode(src))
: _encode(src);
};
/**
* converts a UTF-8-encoded string to URL-safe Base64 RFC4648 §5.
* @returns {string} Base64 string
*/
var encodeURI = function (src) { return encode(src, true); };
// This trick is found broken https://github.com/dankogai/js-base64/issues/130
// const btou = (src: string) => decodeURIComponent(escape(src));
// reverting good old fationed regexp
var re_btou = /[\xC0-\xDF][\x80-\xBF]|[\xE0-\xEF][\x80-\xBF]{2}|[\xF0-\xF7][\x80-\xBF]{3}/g;
var cb_btou = function (cccc) {
switch (cccc.length) {
case 4:
var cp = ((0x07 & cccc.charCodeAt(0)) << 18)
| ((0x3f & cccc.charCodeAt(1)) << 12)
| ((0x3f & cccc.charCodeAt(2)) << 6)
| (0x3f & cccc.charCodeAt(3)), offset = cp - 0x10000;
return (_fromCC((offset >>> 10) + 0xD800)
+ _fromCC((offset & 0x3FF) + 0xDC00));
case 3:
return _fromCC(((0x0f & cccc.charCodeAt(0)) << 12)
| ((0x3f & cccc.charCodeAt(1)) << 6)
| (0x3f & cccc.charCodeAt(2)));
default:
return _fromCC(((0x1f & cccc.charCodeAt(0)) << 6)
| (0x3f & cccc.charCodeAt(1)));
}
};
/**
* @deprecated should have been internal use only.
* @param {string} src UTF-16 string
* @returns {string} UTF-8 string
*/
var btou = function (b) { return b.replace(re_btou, cb_btou); };
/**
* polyfill version of `atob`
*/
var atobPolyfill = function (asc) {
// console.log('polyfilled');
asc = asc.replace(/\s+/g, '');
if (!b64re.test(asc))
throw new TypeError('malformed base64.');
asc += '=='.slice(2 - (asc.length & 3));
var u24, bin = '', r1, r2;
for (var i = 0; i < asc.length;) {
u24 = b64tab[asc.charAt(i++)] << 18
| b64tab[asc.charAt(i++)] << 12
| (r1 = b64tab[asc.charAt(i++)]) << 6
| (r2 = b64tab[asc.charAt(i++)]);
bin += r1 === 64 ? _fromCC(u24 >> 16 & 255)
: r2 === 64 ? _fromCC(u24 >> 16 & 255, u24 >> 8 & 255)
: _fromCC(u24 >> 16 & 255, u24 >> 8 & 255, u24 & 255);
}
return bin;
};
/**
* does what `window.atob` of web browsers do.
* @param {String} asc Base64-encoded string
* @returns {string} binary string
*/
var _atob = _hasatob ? function (asc) { return atob(_tidyB64(asc)); }
: _hasBuffer ? function (asc) { return Buffer.from(asc, 'base64').toString('binary'); }
: atobPolyfill;
//
var _toUint8Array = _hasBuffer
? function (a) { return _U8Afrom(Buffer.from(a, 'base64')); }
: function (a) { return _U8Afrom(_atob(a), function (c) { return c.charCodeAt(0); }); };
/**
* converts a Base64 string to a Uint8Array.
*/
var toUint8Array = function (a) { return _toUint8Array(_unURI(a)); };
//
var _decode = _hasBuffer
? function (a) { return Buffer.from(a, 'base64').toString('utf8'); }
: _TD
? function (a) { return _TD.decode(_toUint8Array(a)); }
: function (a) { return btou(_atob(a)); };
var _unURI = function (a) { return _tidyB64(a.replace(/[-_]/g, function (m0) { return m0 == '-' ? '+' : '/'; })); };
/**
* converts a Base64 string to a UTF-8 string.
* @param {String} src Base64 string. Both normal and URL-safe are supported
* @returns {string} UTF-8 string
*/
var decode = function (src) { return _decode(_unURI(src)); };
/**
* check if a value is a valid Base64 string
* @param {String} src a value to check
*/
var isValid = function (src) {
if (typeof src !== 'string')
return false;
var s = src.replace(/\s+/g, '').replace(/={0,2}$/, '');
return !/[^\s0-9a-zA-Z\+/]/.test(s) || !/[^\s0-9a-zA-Z\-_]/.test(s);
};
//
var _noEnum = function (v) {
return {
value: v, enumerable: false, writable: true, configurable: true
};
};
/**
* extend String.prototype with relevant methods
*/
var extendString = function () {
var _add = function (name, body) { return Object.defineProperty(String.prototype, name, _noEnum(body)); };
_add('fromBase64', function () { return decode(this); });
_add('toBase64', function (urlsafe) { return encode(this, urlsafe); });
_add('toBase64URI', function () { return encode(this, true); });
_add('toBase64URL', function () { return encode(this, true); });
_add('toUint8Array', function () { return toUint8Array(this); });
};
/**
* extend Uint8Array.prototype with relevant methods
*/
var extendUint8Array = function () {
var _add = function (name, body) { return Object.defineProperty(Uint8Array.prototype, name, _noEnum(body)); };
_add('toBase64', function (urlsafe) { return fromUint8Array(this, urlsafe); });
_add('toBase64URI', function () { return fromUint8Array(this, true); });
_add('toBase64URL', function () { return fromUint8Array(this, true); });
};
/**
* extend Builtin prototypes with relevant methods
*/
var extendBuiltins = function () {
extendString();
extendUint8Array();
};
var gBase64 = {
version: version,
VERSION: VERSION,
atob: _atob,
atobPolyfill: atobPolyfill,
btoa: _btoa,
btoaPolyfill: btoaPolyfill,
fromBase64: decode,
toBase64: encode,
encode: encode,
encodeURI: encodeURI,
encodeURL: encodeURI,
utob: utob,
btou: btou,
decode: decode,
isValid: isValid,
fromUint8Array: fromUint8Array,
toUint8Array: toUint8Array,
extendString: extendString,
extendUint8Array: extendUint8Array,
extendBuiltins: extendBuiltins
};
//
// export Base64 to the namespace
//
// ES5 is yet to have Object.assign() that may make transpilers unhappy.
// gBase64.Base64 = Object.assign({}, gBase64);
gBase64.Base64 = {};
Object.keys(gBase64).forEach(function (k) { return gBase64.Base64[k] = gBase64[k]; });
return gBase64;
}));