Adjust code to airbnb style guide, including eslint rules and prettier configuration for code base
This commit is contained in:
Victor Hagelbäck
parent
1b55cabf63
commit
281acd6ad8
23 changed files with 919 additions and 2225 deletions
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@ -1,717 +0,0 @@
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const dbus = require('dbus-next');
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const crypto = require('crypto');
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const xor = require('buffer-xor');
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const EventEmitter = require('events');
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const Logger = require('./Logger');
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const logger = Logger.getLogger("plejd-ble");
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// UUIDs
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const PLEJD_SERVICE = '31ba0001-6085-4726-be45-040c957391b5';
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const DATA_UUID = '31ba0004-6085-4726-be45-040c957391b5';
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const LAST_DATA_UUID = '31ba0005-6085-4726-be45-040c957391b5';
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const AUTH_UUID = '31ba0009-6085-4726-be45-040c957391b5';
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const PING_UUID = '31ba000a-6085-4726-be45-040c957391b5';
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const BLE_CMD_DIM_CHANGE = '00c8';
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const BLE_CMD_DIM2_CHANGE = '0098';
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const BLE_CMD_STATE_CHANGE = '0097';
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const BLE_CMD_SCENE_TRIG = '0021';
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const BLUEZ_SERVICE_NAME = 'org.bluez';
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const DBUS_OM_INTERFACE = 'org.freedesktop.DBus.ObjectManager';
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const DBUS_PROP_INTERFACE = 'org.freedesktop.DBus.Properties';
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const BLUEZ_ADAPTER_ID = 'org.bluez.Adapter1';
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const BLUEZ_DEVICE_ID = 'org.bluez.Device1';
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const GATT_SERVICE_ID = 'org.bluez.GattService1';
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const GATT_CHRC_ID = 'org.bluez.GattCharacteristic1';
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const MAX_TRANSITION_STEPS_PER_SECOND = 5; // Could be made a setting
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const MAX_RETRY_COUNT = 5; // Could be made a setting
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class PlejdService extends EventEmitter {
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constructor(cryptoKey, devices, sceneManager, connectionTimeout, writeQueueWaitTime, keepAlive = false) {
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super();
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logger.info('Starting Plejd BLE, resetting all device states.');
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this.cryptoKey = Buffer.from(cryptoKey.replace(/-/g, ''), 'hex');
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this.sceneManager = sceneManager;
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this.connectedDevice = null;
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this.plejdService = null;
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this.bleDevices = [];
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this.bleDeviceTransitionTimers = {};
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this.plejdDevices = {};
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this.devices = devices;
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this.connectEventHooked = false;
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this.connectionTimeout = connectionTimeout;
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this.writeQueueWaitTime = writeQueueWaitTime;
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this.writeQueue = [];
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this.writeQueueRef = null;
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this.initInProgress = null;
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// Holds a reference to all characteristics
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this.characteristics = {
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data: null,
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lastData: null,
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lastDataProperties: null,
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auth: null,
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ping: null
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};
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this.bus = dbus.systemBus();
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this.adapter = null;
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logger.debug('wiring events and waiting for BLE interface to power up.');
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this.wireEvents();
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}
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async init() {
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if (this.objectManager) {
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this.objectManager.removeAllListeners();
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}
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this.bleDevices = [];
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this.connectedDevice = null;
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this.characteristics = {
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data: null,
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lastData: null,
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lastDataProperties: null,
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auth: null,
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ping: null
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};
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clearInterval(this.pingRef);
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clearTimeout(this.writeQueueRef);
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logger.info('init()');
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const bluez = await this.bus.getProxyObject(BLUEZ_SERVICE_NAME, '/');
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this.objectManager = await bluez.getInterface(DBUS_OM_INTERFACE);
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// We need to find the ble interface which implements the Adapter1 interface
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const managedObjects = await this.objectManager.GetManagedObjects();
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let result = await this._getInterface(managedObjects, BLUEZ_ADAPTER_ID);
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if (result) {
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this.adapter = result[1];
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}
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if (!this.adapter) {
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logger.error('unable to find a bluetooth adapter that is compatible.');
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return;
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}
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for (let path of Object.keys(managedObjects)) {
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const interfaces = Object.keys(managedObjects[path]);
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if (interfaces.indexOf(BLUEZ_DEVICE_ID) > -1) {
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const proxyObject = await this.bus.getProxyObject(BLUEZ_SERVICE_NAME, path);
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const device = await proxyObject.getInterface(BLUEZ_DEVICE_ID);
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const connected = managedObjects[path][BLUEZ_DEVICE_ID].Connected.value;
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if (connected) {
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logger.info('disconnecting ' + path);
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await device.Disconnect();
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}
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await this.adapter.RemoveDevice(path);
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}
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}
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this.objectManager.on('InterfacesAdded', this.onInterfacesAdded.bind(this));
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this.adapter.SetDiscoveryFilter({
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'UUIDs': new dbus.Variant('as', [PLEJD_SERVICE]),
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'Transport': new dbus.Variant('s', 'le')
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});
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try {
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await this.adapter.StartDiscovery();
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} catch (err) {
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logger.error('failed to start discovery. Make sure no other add-on is currently scanning.');
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return;
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}
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return new Promise(resolve =>
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setTimeout(() => resolve(
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this._internalInit().catch((err) => { logger.error('InternalInit exception! Will rethrow.', err); throw err; })
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), this.connectionTimeout * 1000
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)
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);
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}
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async _internalInit() {
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logger.debug(`Got ${this.bleDevices.length} device(s).`);
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for (const plejd of this.bleDevices) {
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logger.debug(`Inspecting ${plejd['path']}`);
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try {
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const proxyObject = await this.bus.getProxyObject(BLUEZ_SERVICE_NAME, plejd['path']);
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const device = await proxyObject.getInterface(BLUEZ_DEVICE_ID);
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const properties = await proxyObject.getInterface(DBUS_PROP_INTERFACE);
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plejd['rssi'] = (await properties.Get(BLUEZ_DEVICE_ID, 'RSSI')).value;
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plejd['instance'] = device;
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const segments = plejd['path'].split('/');
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let fixedPlejdPath = segments[segments.length - 1].replace('dev_', '');
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fixedPlejdPath = fixedPlejdPath.replace(/_/g, '');
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plejd['device'] = this.devices.find(x => x.serialNumber === fixedPlejdPath);
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logger.debug(`Discovered ${plejd['path']} with rssi ${plejd['rssi']}`);
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} catch (err) {
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logger.error(`Failed inspecting ${plejd['path']}. `, err);
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}
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}
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const sortedDevices = this.bleDevices.sort((a, b) => b['rssi'] - a['rssi']);
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let connectedDevice = null;
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for (const plejd of sortedDevices) {
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try {
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if (plejd['instance']) {
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logger.info(`Connecting to ${plejd['path']}`);
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await plejd['instance'].Connect();
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connectedDevice = plejd;
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break
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}
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} catch (err) {
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logger.error('Warning: unable to connect, will retry. ', err);
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}
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}
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setTimeout(async () => {
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await this.onDeviceConnected(connectedDevice);
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await this.adapter.StopDiscovery();
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}, this.connectionTimeout * 1000);
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}
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async _getInterface(managedObjects, iface) {
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const managedPaths = Object.keys(managedObjects);
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for (let path of managedPaths) {
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const pathInterfaces = Object.keys(managedObjects[path]);
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if (pathInterfaces.indexOf(iface) > -1) {
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logger.debug(`Found BLE interface '${iface}' at ${path}`);
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try {
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const adapterObject = await this.bus.getProxyObject(BLUEZ_SERVICE_NAME, path);
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return [path, adapterObject.getInterface(iface), adapterObject];
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} catch (err) {
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logger.error(`Failed to get interface '${iface}'. `, err);
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}
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}
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}
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return null;
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}
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async onInterfacesAdded(path, interfaces) {
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// const [adapter, dev, service, characteristic] = path.split('/').slice(3);
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const interfaceKeys = Object.keys(interfaces);
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if (interfaceKeys.indexOf(BLUEZ_DEVICE_ID) > -1) {
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if (interfaces[BLUEZ_DEVICE_ID]['UUIDs'].value.indexOf(PLEJD_SERVICE) > -1) {
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logger.debug(`Found Plejd service on ${path}`);
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this.bleDevices.push({
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'path': path
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});
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} else {
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logger.error('Uh oh, no Plejd device!');
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}
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}
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}
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turnOn(deviceId, command) {
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const deviceName = this._getDeviceName(deviceId);
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logger.info(`Plejd got turn on command for ${deviceName} (${deviceId}), brightness ${command.brightness}${command.transition ? `, transition: ${command.transition}` : ''}`);
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this._transitionTo(deviceId, command.brightness, command.transition, deviceName);
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}
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turnOff(deviceId, command) {
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const deviceName = this._getDeviceName(deviceId);
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logger.info(`Plejd got turn off command for ${deviceName} (${deviceId}), brightness ${command.brightness}${command.transition ? `, transition: ${command.transition}` : ''}`);
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this._transitionTo(deviceId, 0, command.transition, deviceName);
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}
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_clearDeviceTransitionTimer(deviceId) {
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if (this.bleDeviceTransitionTimers[deviceId]) {
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clearInterval(this.bleDeviceTransitionTimers[deviceId]);
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}
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}
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_transitionTo(deviceId, targetBrightness, transition, deviceName) {
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const initialBrightness = this.plejdDevices[deviceId] ? this.plejdDevices[deviceId].state && this.plejdDevices[deviceId].dim : null;
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this._clearDeviceTransitionTimer(deviceId);
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const isDimmable = this.devices.find(d => d.id === deviceId).dimmable;
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if (transition > 1 && isDimmable && (initialBrightness || initialBrightness === 0) && (targetBrightness || targetBrightness === 0) && targetBrightness !== initialBrightness) {
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// Transition time set, known initial and target brightness
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// Calculate transition interval time based on delta brightness and max steps per second
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// During transition, measure actual transition interval time and adjust stepping continously
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// If transition <= 1 second, Plejd will do a better job than we can in transitioning so transitioning will be skipped
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const deltaBrightness = targetBrightness - initialBrightness;
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const transitionSteps = Math.min(Math.abs(deltaBrightness), MAX_TRANSITION_STEPS_PER_SECOND * transition);
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const transitionInterval = transition * 1000 / transitionSteps;
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logger.debug(`transitioning from ${initialBrightness} to ${targetBrightness} ${transition ? 'in ' + transition + ' seconds' : ''}.`);
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logger.verbose(`delta brightness ${deltaBrightness}, steps ${transitionSteps}, interval ${transitionInterval} ms`);
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const dtStart = new Date();
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let nSteps = 0;
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this.bleDeviceTransitionTimers[deviceId] = setInterval(() => {
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let tElapsedMs = new Date().getTime() - dtStart.getTime();
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let tElapsed = tElapsedMs / 1000;
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if (tElapsed > transition || tElapsed < 0) {
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tElapsed = transition;
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}
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let newBrightness = parseInt(initialBrightness + deltaBrightness * tElapsed / transition);
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if (tElapsed === transition) {
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nSteps++;
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this._clearDeviceTransitionTimer(deviceId);
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newBrightness = targetBrightness;
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logger.debug(`Queueing finalize ${deviceName} (${deviceId}) transition from ${initialBrightness} to ${targetBrightness} in ${tElapsedMs}ms. Done steps ${nSteps}. Average interval ${tElapsedMs / (nSteps || 1)} ms.`);
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this._setBrightness(deviceId, newBrightness, true, deviceName);
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} else {
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nSteps++;
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logger.verbose(`Queueing dim transition for ${deviceName} (${deviceId}) to ${newBrightness}. Total queue length ${this.writeQueue.length}`);
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this._setBrightness(deviceId, newBrightness, false, deviceName);
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}
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}, transitionInterval);
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}
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else {
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if (transition && isDimmable) {
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logger.debug(`Could not transition light change. Either initial value is unknown or change is too small. Requested from ${initialBrightness} to ${targetBrightness}`)
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}
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this._setBrightness(deviceId, targetBrightness, true, deviceName);
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}
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}
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_setBrightness(deviceId, brightness, shouldRetry, deviceName) {
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let payload = null;
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let log = '';
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if (!brightness && brightness !== 0) {
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logger.debug(`Queueing turn on ${deviceName} (${deviceId}). No brightness specified, setting DIM to previous.`);
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payload = Buffer.from((deviceId).toString(16).padStart(2, '0') + '0110009701', 'hex');
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log = 'ON';
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}
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else {
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if (brightness <= 0) {
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logger.debug(`Queueing turn off ${deviceId}`);
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payload = Buffer.from((deviceId).toString(16).padStart(2, '0') + '0110009700', 'hex');
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log = 'OFF';
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}
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else {
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if (brightness > 255) {
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brightness = 255;
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}
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logger.debug(`Queueing ${deviceId} set brightness to ${brightness}`);
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const brightnessVal = (brightness << 8) | brightness;
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payload = Buffer.from((deviceId).toString(16).padStart(2, '0') + '0110009801' + (brightnessVal).toString(16).padStart(4, '0'), 'hex');
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log = `DIM ${brightness}`;
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}
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}
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this.writeQueue.unshift({deviceId, log, shouldRetry, payload});
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}
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triggerScene(sceneIndex) {
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const sceneName = this._getDeviceName(sceneIndex);
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logger.info(`Triggering scene ${sceneName} (${sceneIndex}). Scene name might be misleading if there is a device with the same numeric id.`);
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this.sceneManager.executeScene(sceneIndex, this);
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}
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async authenticate() {
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logger.info('authenticate()');
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try {
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logger.debug('Sending challenge to device');
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await this.characteristics.auth.WriteValue([0], {});
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logger.debug('Reading response from device');
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const challenge = await this.characteristics.auth.ReadValue({});
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const response = this._createChallengeResponse(this.cryptoKey, Buffer.from(challenge));
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logger.debug('Responding to authenticate');
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await this.characteristics.auth.WriteValue([...response], {});
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} catch (err) {
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logger.error('Failed to authenticate: ', err);
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}
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// auth done, start ping
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this.startPing();
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this.startWriteQueue();
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// After we've authenticated, we need to hook up the event listener
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// for changes to lastData.
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this.characteristics.lastDataProperties.on('PropertiesChanged', this.onLastDataUpdated.bind(this));
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this.characteristics.lastData.StartNotify();
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}
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async throttledInit(delay) {
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if(this.initInProgress){
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logger.debug('ThrottledInit already in progress. Skipping this call and returning existing promise.')
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return this.initInProgress;
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}
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this.initInProgress = new Promise((resolve) => setTimeout(async () => {
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const result = await this.init().catch((err) => { logger.error('TrottledInit exception calling init(). Will re-throw.', err); throw err; });
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this.initInProgress = null;
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resolve(result)
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}, delay))
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return this.initInProgress;
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}
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async write(data) {
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if (!data || !this.plejdService || !this.characteristics.data) {
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logger.debug('data, plejdService or characteristics not available. Cannot write()');
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return;
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}
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try {
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logger.verbose(`Sending ${data.length} byte(s) of data to Plejd`, data);
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const encryptedData = this._encryptDecrypt(this.cryptoKey, this.plejdService.addr, data);
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await this.characteristics.data.WriteValue([...encryptedData], {});
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return true;
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} catch (err) {
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if (err.message === 'In Progress') {
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logger.debug('Write failed due to \'In progress\' ', err);
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} else {
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logger.debug('Write failed ', err);
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}
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await this.throttledInit(this.connectionTimeout * 1000);
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return false;
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}
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}
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startPing() {
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logger.info('startPing()');
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clearInterval(this.pingRef);
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this.pingRef = setInterval(async () => {
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logger.silly('ping');
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await this.ping();
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}, 3000);
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}
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onPingSuccess(nr) {
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logger.silly('pong: ' + nr);
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}
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async onPingFailed(error) {
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logger.debug('onPingFailed(' + error + ')');
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logger.info('ping failed, reconnecting.');
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clearInterval(this.pingRef);
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await this.init();
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}
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async ping() {
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logger.silly('ping()');
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var ping = crypto.randomBytes(1);
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let pong = null;
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try {
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await this.characteristics.ping.WriteValue([...ping], {});
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pong = await this.characteristics.ping.ReadValue({});
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} catch (err) {
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logger.error('Error writing to plejd: ', err);
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this.emit('pingFailed', 'write error');
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return;
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}
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if (((ping[0] + 1) & 0xff) !== pong[0]) {
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logger.error('Plejd ping failed');
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this.emit('pingFailed', 'plejd ping failed ' + ping[0] + ' - ' + pong[0]);
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return;
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}
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this.emit('pingSuccess', pong[0]);
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}
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startWriteQueue() {
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logger.info('startWriteQueue()');
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clearTimeout(this.writeQueueRef);
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this.writeQueueRef = setTimeout(() => this.runWriteQueue(), this.writeQueueWaitTime);
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}
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async runWriteQueue() {
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try {
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while (this.writeQueue.length > 0) {
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const queueItem = this.writeQueue.pop();
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const deviceName = this._getDeviceName(queueItem.deviceId);
|
||||
logger.debug(`Write queue: Processing ${deviceName} (${queueItem.deviceId}). Command ${queueItem.log}. Total queue length: ${this.writeQueue.length}`);
|
||||
|
||||
if (this.writeQueue.some((item) => item.deviceId === queueItem.deviceId)) {
|
||||
logger.verbose(`Skipping ${deviceName} (${queueItem.deviceId}) ${queueItem.log} due to more recent command in queue.`);
|
||||
continue; // Skip commands if new ones exist for the same deviceId, but still process all messages in order
|
||||
}
|
||||
|
||||
const success = await this.write(queueItem.payload);
|
||||
if (!success && queueItem.shouldRetry) {
|
||||
queueItem.retryCount = (queueItem.retryCount || 0) + 1;
|
||||
logger.debug(`Will retry command, count failed so far ${queueItem.retryCount}`);
|
||||
if (queueItem.retryCount <= MAX_RETRY_COUNT) {
|
||||
this.writeQueue.push(queueItem); // Add back to top of queue to be processed next;
|
||||
}
|
||||
else {
|
||||
logger.error(`Write queue: Exceeed max retry count (${MAX_RETRY_COUNT}) for ${deviceName} (${queueItem.deviceId}). Command ${queueItem.log} failed.`);
|
||||
break;
|
||||
}
|
||||
if (queueItem.retryCount > 1) {
|
||||
break; // First retry directly, consecutive after writeQueueWaitTime ms
|
||||
}
|
||||
}
|
||||
}
|
||||
} catch (e) {
|
||||
logger.error('Error in writeQueue loop, values probably not written to Plejd', e);
|
||||
}
|
||||
|
||||
this.writeQueueRef = setTimeout(() => this.runWriteQueue(), this.writeQueueWaitTime);
|
||||
}
|
||||
|
||||
async _processPlejdService(path, characteristics) {
|
||||
const proxyObject = await this.bus.getProxyObject(BLUEZ_SERVICE_NAME, path);
|
||||
const service = await proxyObject.getInterface(GATT_SERVICE_ID);
|
||||
const properties = await proxyObject.getInterface(DBUS_PROP_INTERFACE);
|
||||
|
||||
const uuid = (await properties.Get(GATT_SERVICE_ID, 'UUID')).value;
|
||||
if (uuid !== PLEJD_SERVICE) {
|
||||
logger.error('not a Plejd device.');
|
||||
return null;
|
||||
}
|
||||
|
||||
const dev = (await properties.Get(GATT_SERVICE_ID, 'Device')).value;
|
||||
const regex = /dev_([0-9A-F_]+)$/;
|
||||
const dirtyAddr = regex.exec(dev);
|
||||
const addr = this._reverseBuffer(
|
||||
Buffer.from(
|
||||
String(dirtyAddr[1])
|
||||
.replace(/\-/g, '')
|
||||
.replace(/\_/g, '')
|
||||
.replace(/\:/g, ''), 'hex'
|
||||
)
|
||||
);
|
||||
|
||||
for (const chPath of characteristics) {
|
||||
const chProxyObject = await this.bus.getProxyObject(BLUEZ_SERVICE_NAME, chPath);
|
||||
const ch = await chProxyObject.getInterface(GATT_CHRC_ID);
|
||||
const prop = await chProxyObject.getInterface(DBUS_PROP_INTERFACE);
|
||||
|
||||
const chUuid = (await prop.Get(GATT_CHRC_ID, 'UUID')).value;
|
||||
|
||||
if (chUuid === DATA_UUID) {
|
||||
logger.debug('found DATA characteristic.');
|
||||
this.characteristics.data = ch;
|
||||
} else if (chUuid === LAST_DATA_UUID) {
|
||||
logger.debug('found LAST_DATA characteristic.');
|
||||
this.characteristics.lastData = ch;
|
||||
this.characteristics.lastDataProperties = prop;
|
||||
} else if (chUuid === AUTH_UUID) {
|
||||
logger.debug('found AUTH characteristic.');
|
||||
this.characteristics.auth = ch;
|
||||
} else if (chUuid === PING_UUID) {
|
||||
logger.debug('found PING characteristic.');
|
||||
this.characteristics.ping = ch;
|
||||
}
|
||||
}
|
||||
|
||||
return {
|
||||
addr: addr
|
||||
};
|
||||
}
|
||||
|
||||
async onDeviceConnected(device) {
|
||||
logger.info('onDeviceConnected()');
|
||||
logger.debug(`Device: ${device}`);
|
||||
if (!device) {
|
||||
logger.error('Device is null. Should we break/return when this happens?');
|
||||
}
|
||||
|
||||
const objects = await this.objectManager.GetManagedObjects();
|
||||
const paths = Object.keys(objects);
|
||||
let characteristics = [];
|
||||
|
||||
for (const path of paths) {
|
||||
const interfaces = Object.keys(objects[path]);
|
||||
if (interfaces.indexOf(GATT_CHRC_ID) > -1) {
|
||||
characteristics.push(path);
|
||||
}
|
||||
}
|
||||
|
||||
for (const path of paths) {
|
||||
const interfaces = Object.keys(objects[path]);
|
||||
if (interfaces.indexOf(GATT_SERVICE_ID) > -1) {
|
||||
let chPaths = [];
|
||||
for (const c of characteristics) {
|
||||
if (c.startsWith(path + '/')) {
|
||||
chPaths.push(c);
|
||||
}
|
||||
}
|
||||
|
||||
logger.info('trying ' + chPaths.length + ' characteristics');
|
||||
|
||||
this.plejdService = await this._processPlejdService(path, chPaths);
|
||||
if (this.plejdService) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (!this.plejdService) {
|
||||
logger.info('warning: wasn\'t able to connect to Plejd, will retry.');
|
||||
this.emit('connectFailed');
|
||||
return;
|
||||
}
|
||||
|
||||
if (!this.characteristics.auth) {
|
||||
logger.error('unable to enumerate characteristics.');
|
||||
this.emit('connectFailed');
|
||||
return;
|
||||
}
|
||||
|
||||
this.connectedDevice = device['device'];
|
||||
await this.authenticate();
|
||||
}
|
||||
|
||||
async onLastDataUpdated(iface, properties, invalidated) {
|
||||
if (iface !== GATT_CHRC_ID) {
|
||||
return;
|
||||
}
|
||||
|
||||
const changedKeys = Object.keys(properties);
|
||||
if (changedKeys.length === 0) {
|
||||
return;
|
||||
}
|
||||
|
||||
const value = await properties['Value'];
|
||||
if (!value) {
|
||||
return;
|
||||
}
|
||||
|
||||
const data = value.value;
|
||||
const decoded = this._encryptDecrypt(this.cryptoKey, this.plejdService.addr, data);
|
||||
|
||||
const deviceId = parseInt(decoded[0], 10);
|
||||
// What is bytes 2-3?
|
||||
const cmd = decoded.toString('hex', 3, 5);
|
||||
const state = parseInt(decoded.toString('hex', 5, 6), 10); // Overflows for command 0x001b, scene command
|
||||
const data2 = parseInt(decoded.toString('hex', 6, 8), 16) >> 8;
|
||||
|
||||
if (decoded.length < 5) {
|
||||
logger.debug(`Too short raw event ignored: ${decoded.toString('hex')}`);
|
||||
// ignore the notification since too small
|
||||
return;
|
||||
}
|
||||
|
||||
const deviceName = this._getDeviceName(deviceId);
|
||||
logger.verbose(`Raw event received: ${decoded.toString('hex')}`);
|
||||
logger.verbose(`Device ${deviceId}, cmd ${cmd.toString('hex')}, state ${state}, dim/data2 ${data2}`);
|
||||
|
||||
if (cmd === BLE_CMD_DIM_CHANGE || cmd === BLE_CMD_DIM2_CHANGE) {
|
||||
const dim = data2;
|
||||
|
||||
logger.debug(`${deviceName} (${deviceId}) got state+dim update. S: ${state}, D: ${dim}`);
|
||||
|
||||
this.emit('stateChanged', deviceId, {
|
||||
state: state,
|
||||
brightness: dim
|
||||
});
|
||||
|
||||
this.plejdDevices[deviceId] = {
|
||||
state: state,
|
||||
dim: dim
|
||||
};
|
||||
logger.verbose(`All states: ${JSON.stringify(this.plejdDevices)}`);
|
||||
} else if (cmd === BLE_CMD_STATE_CHANGE) {
|
||||
logger.debug(`${deviceName} (${deviceId}) got state update. S: ${state}`);
|
||||
this.emit('stateChanged', deviceId, {
|
||||
state: state
|
||||
});
|
||||
this.plejdDevices[deviceId] = {
|
||||
state: state,
|
||||
dim: 0
|
||||
};
|
||||
logger.verbose(`All states: ${this.plejdDevices}`);
|
||||
} else if (cmd === BLE_CMD_SCENE_TRIG) {
|
||||
const sceneId = parseInt(decoded.toString('hex', 5, 6), 16);
|
||||
const sceneName = this._getDeviceName(sceneId);
|
||||
|
||||
logger.debug(`${sceneName} (${sceneId}) scene triggered (device id ${deviceId}). Name can be misleading if there is a device with the same numeric id.`);
|
||||
|
||||
this.emit('sceneTriggered', deviceId, sceneId);
|
||||
}
|
||||
else if (cmd === '001b') {
|
||||
logger.silly('Command 001b seems to be some kind of often repeating ping/mesh data');
|
||||
}
|
||||
else {
|
||||
logger.verbose(`Command ${cmd.toString('hex')} unknown. Device ${deviceName} (${deviceId})`);
|
||||
}
|
||||
}
|
||||
|
||||
wireEvents() {
|
||||
logger.info('wireEvents()');
|
||||
const self = this;
|
||||
|
||||
this.on('pingFailed', this.onPingFailed.bind(self));
|
||||
this.on('pingSuccess', this.onPingSuccess.bind(self));
|
||||
}
|
||||
|
||||
_createChallengeResponse(key, challenge) {
|
||||
const intermediate = crypto.createHash('sha256').update(xor(key, challenge)).digest();
|
||||
const part1 = intermediate.subarray(0, 16);
|
||||
const part2 = intermediate.subarray(16);
|
||||
|
||||
const resp = xor(part1, part2);
|
||||
|
||||
return resp;
|
||||
}
|
||||
|
||||
_encryptDecrypt(key, addr, data) {
|
||||
var buf = Buffer.concat([addr, addr, addr.subarray(0, 4)]);
|
||||
|
||||
var cipher = crypto.createCipheriv('aes-128-ecb', key, '');
|
||||
cipher.setAutoPadding(false);
|
||||
|
||||
var ct = cipher.update(buf).toString('hex');
|
||||
ct += cipher.final().toString('hex');
|
||||
ct = Buffer.from(ct, 'hex');
|
||||
|
||||
var output = '';
|
||||
for (var i = 0, length = data.length; i < length; i++) {
|
||||
output += String.fromCharCode(data[i] ^ ct[i % 16]);
|
||||
}
|
||||
|
||||
return Buffer.from(output, 'ascii');
|
||||
}
|
||||
|
||||
_getDeviceName(deviceId) {
|
||||
return (this.devices.find(d => d.id === deviceId) || {}).name;
|
||||
}
|
||||
|
||||
_reverseBuffer(src) {
|
||||
var buffer = Buffer.allocUnsafe(src.length)
|
||||
|
||||
for (var i = 0, j = src.length - 1; i <= j; ++i, --j) {
|
||||
buffer[i] = src[j]
|
||||
buffer[j] = src[i]
|
||||
}
|
||||
|
||||
return buffer
|
||||
}
|
||||
}
|
||||
|
||||
module.exports = PlejdService;
|
||||
Loading…
Add table
Add a link
Reference in a new issue