@mparticle/web-sdk
Version:
mParticle core SDK for web applications
253 lines (210 loc) • 6.94 kB
JavaScript
// Base64 encoder/decoder - http://www.webtoolkit.info/javascript_base64.html
var Base64 = {
_keyStr:
'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=',
// Input must be a string
encode: function encode(input) {
try {
if (window.btoa && window.atob) {
return window.btoa(unescape(encodeURIComponent(input)));
}
} catch (e) {
console.error('Error encoding cookie values into Base64:' + e);
}
return this._encode(input);
},
_encode: function _encode(input) {
var output = '';
var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
var i = 0;
input = UTF8.encode(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 +
Base64._keyStr.charAt(enc1) +
Base64._keyStr.charAt(enc2) +
Base64._keyStr.charAt(enc3) +
Base64._keyStr.charAt(enc4);
}
return output;
},
decode: function decode(input) {
try {
if (window.btoa && window.atob) {
return decodeURIComponent(escape(window.atob(input)));
}
} catch (e) {
//log(e);
}
return Base64._decode(input);
},
_decode: function _decode(input) {
var output = '';
var chr1, chr2, chr3;
var enc1, enc2, enc3, enc4;
var i = 0;
input = input.replace(/[^A-Za-z0-9\+\/\=]/g, '');
while (i < input.length) {
enc1 = Base64._keyStr.indexOf(input.charAt(i++));
enc2 = Base64._keyStr.indexOf(input.charAt(i++));
enc3 = Base64._keyStr.indexOf(input.charAt(i++));
enc4 = Base64._keyStr.indexOf(input.charAt(i++));
chr1 = (enc1 << 2) | (enc2 >> 4);
chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
chr3 = ((enc3 & 3) << 6) | enc4;
output = output + String.fromCharCode(chr1);
if (enc3 !== 64) {
output = output + String.fromCharCode(chr2);
}
if (enc4 !== 64) {
output = output + String.fromCharCode(chr3);
}
}
output = UTF8.decode(output);
return output;
},
};
var UTF8 = {
encode: function encode(s) {
var utftext = '';
for (var n = 0; n < s.length; n++) {
var c = s.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;
},
decode: function decode(utftext) {
var s = '';
var i = 0;
var c = 0,
c1 = 0,
c2 = 0;
while (i < utftext.length) {
c = utftext.charCodeAt(i);
if (c < 128) {
s += String.fromCharCode(c);
i++;
} else if (c > 191 && c < 224) {
c1 = utftext.charCodeAt(i + 1);
s += String.fromCharCode(((c & 31) << 6) | (c1 & 63));
i += 2;
} else {
c1 = utftext.charCodeAt(i + 1);
c2 = utftext.charCodeAt(i + 2);
s += String.fromCharCode(
((c & 15) << 12) | ((c1 & 63) << 6) | (c2 & 63)
);
i += 3;
}
}
return s;
},
};
export default {
// forEach polyfill
// Production steps of ECMA-262, Edition 5, 15.4.4.18
// Reference: http://es5.github.io/#x15.4.4.18
forEach: function(callback, thisArg) {
var T, k;
if (this == null) {
throw new TypeError(' this is null or not defined');
}
var O = Object(this);
var len = O.length >>> 0;
if (typeof callback !== 'function') {
throw new TypeError(callback + ' is not a function');
}
if (arguments.length > 1) {
T = thisArg;
}
k = 0;
while (k < len) {
var kValue;
if (k in O) {
kValue = O[k];
callback.call(T, kValue, k, O);
}
k++;
}
},
// map polyfill
// Production steps of ECMA-262, Edition 5, 15.4.4.19
// Reference: http://es5.github.io/#x15.4.4.19
map: function(callback, thisArg) {
var T, A, k;
if (this === null) {
throw new TypeError(' this is null or not defined');
}
var O = Object(this);
var len = O.length >>> 0;
if (typeof callback !== 'function') {
throw new TypeError(callback + ' is not a function');
}
if (arguments.length > 1) {
T = thisArg;
}
A = new Array(len);
k = 0;
while (k < len) {
var kValue, mappedValue;
if (k in O) {
kValue = O[k];
mappedValue = callback.call(T, kValue, k, O);
A[k] = mappedValue;
}
k++;
}
return A;
},
// filter polyfill
// Prodcution steps of ECMA-262, Edition 5
// Reference: http://es5.github.io/#x15.4.4.20
filter: function(fun /*, thisArg*/) {
'use strict';
if (this === void 0 || this === null) {
throw new TypeError();
}
var t = Object(this);
var len = t.length >>> 0;
if (typeof fun !== 'function') {
throw new TypeError();
}
var res = [];
var thisArg = arguments.length >= 2 ? arguments[1] : void 0;
for (var i = 0; i < len; i++) {
if (i in t) {
var val = t[i];
if (fun.call(thisArg, val, i, t)) {
res.push(val);
}
}
}
return res;
},
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/isArray
isArray: function(arg) {
return Object.prototype.toString.call(arg) === '[object Array]';
},
Base64: Base64,
};