@livekit/react-native-webrtc/lib/module/RTCDataPacketCryptor.js

WebRTC for React Native

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
import * as base64 from 'base64-js';
import { NativeModules } from 'react-native';
import Logger from './Logger';
const {
  WebRTCModule
} = NativeModules;
const log = new Logger('pc');
export default class RTCDataPacketCryptor {
  constructor(dataPacketCryptorId) {
    _defineProperty(this, "_id", void 0);
    this._id = dataPacketCryptorId;
  }
  async encrypt(participantId, keyIndex, data) {
    const params = {
      dataPacketCryptorId: this._id,
      participantId,
      keyIndex,
      data: base64.fromByteArray(data)
    };
    const result = await WebRTCModule.dataPacketCryptorEncrypt(params);
    if (!result) {
      log.info('encrypt: result null');
      return null;
    }
    if (result.payload === undefined) {
      log.info('encrypt: payload null');
      return null;
    }
    if (result.iv === undefined) {
      log.info('encrypt: iv null');
      return null;
    }
    if (result.keyIndex === undefined) {
      log.info('encrypt: keyIndex null');
      return null;
    }
    return {
      payload: base64.toByteArray(result.payload),
      iv: base64.toByteArray(result.iv),
      keyIndex: result.keyIndex
    };
  }
  async decrypt(participantId, packet) {
    const params = {
      dataPacketCryptorId: this._id,
      participantId,
      payload: base64.fromByteArray(packet.payload),
      iv: base64.fromByteArray(packet.iv),
      keyIndex: packet.keyIndex
    };
    const result = await WebRTCModule.dataPacketCryptorDecrypt(params);
    if (!result) {
      log.info('decrypt: result null');
      return null;
    }
    return base64.toByteArray(result.data);
  }
  async dispose() {
    const params = {
      dataPacketCryptorId: this._id
    };
    await WebRTCModule.dataPacketCryptorDispose(params);
  }
}
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