react-native-firebase-for-netmera
Version:
49 lines (39 loc) • 1.31 kB
JavaScript
/* eslint-disable */
const CHARS = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
export default {
/**
* window.btoa
*/
btoa(input = '') {
let map;
let i = 0;
let block = 0;
let output = ''; // eslint-disable-next-line
for (block = 0, i = 0, map = CHARS; input.charAt(i | 0) || (map = '=', i % 1); output += map.charAt(63 & block >> 8 - i % 1 * 8)) {
const charCode = input.charCodeAt(i += 3 / 4);
if (charCode > 0xff) {
throw new Error("'RNFirebase.utils.btoa' failed: The string to be encoded contains characters outside of the Latin1 range.");
}
block = block << 8 | charCode;
}
return output;
},
/**
* window.atob
*/
atob(input = '') {
let i = 0;
let bc = 0;
let bs = 0;
let buffer;
let output = '';
const str = input.replace(/=+$/, '');
if (str.length % 4 === 1) {
throw new Error("'RNFirebase.utils.atob' failed: The string to be decoded is not correctly encoded.");
} // eslint-disable-next-line
for (bc = 0, bs = 0, i = 0; buffer = str.charAt(i++); ~buffer && (bs = bc % 4 ? bs * 64 + buffer : buffer, bc++ % 4) ? output += String.fromCharCode(255 & bs >> (-2 * bc & 6)) : 0) {
buffer = CHARS.indexOf(buffer);
}
return output;
}
};