syndicate-2017/js/src/randomid.js

27 lines
785 B
JavaScript

var randomId;
if ((typeof window !== 'undefined') &&
(typeof window.crypto !== 'undefined') &&
(typeof window.crypto.getRandomValues !== 'undefined')) {
randomId = function (byteCount) {
var buf = new Uint8Array(byteCount);
window.crypto.getRandomValues(buf);
return btoa(String.fromCharCode.apply(null, buf)).replace(/=/g,'');
};
} else {
var crypto;
try {
crypto = require('crypto');
} catch (e) {}
if ((typeof crypto !== 'undefined') &&
(typeof crypto.randomBytes !== 'undefined')) {
randomId = function (byteCount) {
return crypto.randomBytes(byteCount).base64Slice().replace(/=/g,'');
};
} else {
console.warn('No suitable implementation for RandomID.randomId available.');
}
}
module.exports.randomId = randomId;