import window from 'global/window';
import {Decrypter} from 'aes-decrypter';
/**
* Our web wroker interface so that things can talk to mux.js
* that will be running in a web worker. the scope is passed to this by
* webworkify.
*
* @param {Object} self the scope for the web worker
*/
const Worker = function(self) {
self.onmessage = function(event) {
let data = event.data;
if (data.action === 'decrypt') {
let encrypted = new Uint8Array(data.encrypted.bytes,
data.encrypted.byteOffset,
data.encrypted.byteLength);
let key = new Uint32Array(data.key.bytes,
data.key.byteOffset,
data.key.byteLength / 4);
let iv = new Uint32Array(data.iv.bytes,
data.iv.byteOffset,
data.iv.byteLength / 4);
new Decrypter(encrypted,
key,
iv,
function(err, bytes) {
window.postMessage({
action: 'done',
bytes: bytes.buffer,
byteOffset: bytes.byteOffset,
byteLength: bytes.byteLength
}, [bytes.buffer]);
});
}
};
};
export default (self) => {
return new Worker(self);
};