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Implement voice encryption support

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This commit is contained in:
qeled
2016-03-18 06:32:35 +03:00
parent 27a0361afc
commit 4d6cca72f4
5 changed files with 97 additions and 23 deletions
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23
src/Voice/VoicePacket.js
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@@ -1,10 +1,17 @@
"use strict";
export default class VoicePacket {
constructor(data, sequence, time, ssrc){
import nacl from "tweetnacl";
var audioBuffer = data,
returnBuffer = new Buffer(audioBuffer.length + 12);
const nonce = new Buffer(24);
nonce.fill(0);
export default class VoicePacket {
constructor(data, sequence, time, ssrc, secret){
var mac = secret ? 16 : 0;
var packetLength = data.length + 12 + mac;
var audioBuffer = data;
var returnBuffer = new Buffer(packetLength);
returnBuffer.fill(0);
returnBuffer[0] = 0x80;
@@ -14,7 +21,13 @@ export default class VoicePacket {
returnBuffer.writeUIntBE(time, 4, 4);
returnBuffer.writeUIntBE(ssrc, 8, 4);
for (var i=0; i<audioBuffer.length; i++) {
if (secret) {
// copy first 12 bytes
returnBuffer.copy(nonce, 0, 0, 12);
audioBuffer = nacl.secretbox(data, nonce, secret);
}
for (var i = 0; i < audioBuffer.length; i++) {
returnBuffer[i + 12] = audioBuffer[i];
}