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nukible.js
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var noble = require('@abandonware/noble');
var _ = require('underscore');
var crc = require('crc');
var sodium = require('sodium');
var HSalsa20 = require('./hsalsa20');
var crypto = require('crypto');
var moment = require('moment');
var nukible = module.exports = function (options) {
this.options = {};
if (options) {
this.options.nukiLocks = options.nukiLocks || {};
this.options.name = options.name; // name of nuki client
this.options.appId = options.appId; // id of this nuki client
this.options.appType = options.appType; // type of this nuki client
}
this.state = nukible.prototype.STATE_PAIRING_IDLE;
this.initialize.apply(this, arguments);
};
// Attach all inheritable methods to the nukible prototype.
_.extend(nukible.prototype, {
initialize: function () {
var self = this;
noble.on('stateChange', function (bleState) {
self._onStateChanged.call(self, bleState);
});
},
stop: function () {
noble.stopScanning();
noble.removeAllListeners('stateChange');
},
_waitForBluetoothPoweredOn: function (maxWaitTimeSeconds, callback) {
if (noble.state === 'poweredOn') {
console.log("Bluetooth already powered on");
callback(null);
} else {
var retryWaitInSeconds = 10;
var maxWaitTimeout;
console.log("Bluetooth not powered on. Retry in " + retryWaitInSeconds + " seconds.");
var intervalTimer = setInterval(function () {
if (noble.state === 'poweredOn') {
if (maxWaitTimeout) {
clearTimeout(maxWaitTimeout);
}
clearInterval(intervalTimer);
intervalTimer = undefined;
console.log("Bluetooth is now powered on");
callback(null);
} else {
console.log("Bluetooth still not powered on. Retry in " + retryWaitInSeconds + " seconds.");
}
}, retryWaitInSeconds * 1000);
if (maxWaitTimeSeconds && maxWaitTimeSeconds > 0) {
console.log("Bluetooth not powered on. Retrying for max. " + maxWaitTimeSeconds + " seconds.");
maxWaitTimeout = setTimeout(function () {
if (intervalTimer) {
clearInterval(intervalTimer);
intervalTimer = undefined;
}
// check last time for powered on
if (noble.state === 'poweredOn') {
console.log("Bluetooth is now powered on");
callback(null);
} else {
callback("Bluetooth not powered on after max. wait time of " + maxWaitTimeSeconds + " seconds");
}
}, maxWaitTimeSeconds * 1000);
}
}
},
_startBleScan: function () {
noble.stopScanning();
var bleState = noble.state;
if (bleState === 'poweredOn') {
console.log('Scanning for nuki.io Bluetooth LE services...');
// only scan for devices advertising these service UUID's (default or empty array => any peripherals
var serviceUuids = [/*nukible.prototype.nukiServiceUuid*/];
// allow duplicate peripheral to be returned (default false) on discovery event
var allowDuplicates = true;
noble.startScanning(serviceUuids, allowDuplicates, function (err) {
if (err) {
console.log("startScanning error: " + err);
}
});
noble.on('scanStop', function () {
setTimeout(function () {
noble.startScanning(serviceUuids, allowDuplicates, function (err) {
if (err) {
console.log("startScanning error: " + err);
}
});
}, 2500);
});
} else {
console.log("Can't start scan, because bluetooth device is not powered on");
}
},
_onStateChanged: function (bleState) {
if (bleState === 'poweredOn') {
this._startBleScan();
} else {
noble.stopScanning();
}
},
_prepareEncryptedDataToSend: function (cmd, authorizationId, sharedSecret, payload) {
var nonce = Buffer.alloc(24);
sodium.api.randombytes_buf(nonce);
var authIdBuffer = Buffer.alloc(4);
authIdBuffer.writeUInt32LE(authorizationId);
var cmdBuffer = Buffer.alloc(2);
cmdBuffer.writeUInt16LE(cmd);
var pDataWithoutCrc = Buffer.concat([authIdBuffer, cmdBuffer, payload]);
var checksum = crc.crc16ccitt(pDataWithoutCrc);
var checksumBuffer = Buffer.alloc(2);
checksumBuffer.writeUInt16LE(checksum);
var pData = Buffer.concat([pDataWithoutCrc, checksumBuffer]);
var pDataEncrypted = sodium.api.crypto_secretbox(pData, nonce, sharedSecret).slice(16); // skip first 16 bytes
// console.log("encrypted message: ", pDataEncrypted);
var lenBuffer = Buffer.alloc(2);
lenBuffer.writeUInt16LE(pDataEncrypted.length);
var aData = Buffer.concat([nonce, authIdBuffer, lenBuffer]);
// console.log("aData: ", aData);
// console.log("pData: ", pData);
return Buffer.concat([aData, pDataEncrypted]);
},
_onPeripheralDiscovered: function (command, peripheral, callback) {
var self = this;
var peripheralName = peripheral.advertisement.localName;
var completed = false;
var retryCount = 0;
var mxRetries = 5;
if (peripheral.connectable) {
peripheral.on('disconnect', function () {
peripheral.disconnect(); // workaround for possible noble bug
if (!completed) {
// peripheral.removeAllListeners('disconnect');
// callback("Peripheral disconnected during command execution.");
console.log("Peripheral disconnected during command execution.");
if (retryCount < mxRetries) {
retryCount = retryCount + 1;
console.log("retrying connect to peripheral again");
self._connectToPeripheral(command, peripheral, callback); // try again
} else {
console.log("Max retry count reached. Don't try to connect again");
peripheral.removeAllListeners('disconnect');
}
} else {
console.log("Peripheral disconnected");
peripheral.removeAllListeners('disconnect');
}
});
this._connectToPeripheral(command, peripheral, callback);
} else {
callback(peripheralName + " is not connectable");
}
},
_connectToPeripheral: function (command, peripheral, callback) {
var self = this;
peripheral.connect(function (err) {
if (err) {
completed = true;
peripheral.removeAllListeners('disconnect');
callback(err);
} else {
console.log("Connected to peripheral " + peripheral.advertisement.localName);
peripheral.discoverServices([nukible.prototype.nukiServiceUuid], function (err, services) {
if (err) {
completed = true;
peripheral.removeAllListeners('disconnect');
peripheral.disconnect();
callback(err);
} else {
self._onNukiServiceDiscovered.call(self, command, peripheral, services[0], function (err, result) {
completed = true;
peripheral.removeAllListeners('disconnect');
peripheral.disconnect();
callback(err, result);
})
}
});
}
});
},
_onNukiServiceDiscovered: function (command, peripheral, nukiService, callback) {
var self = this;
this._currentCommand = command;
this.nukiUSDIOCharacteristic = null;
// discover its characteristics.
nukiService.discoverCharacteristics([], function (err, characteristics) {
characteristics.forEach(function (characteristic) {
//
// Loop through each characteristic and match them to the
// UUIDs that we know about.
//
// console.log('found characteristic:', characteristic.uuid);
if (nukible.prototype.nukiServiceGeneralDataIOCharacteristicUuid === characteristic.uuid) {
self.nukiServiceGeneralDataIOCharacteristic = characteristic;
} else if (nukible.prototype.nukiUserSpecificDataInputOutputCharacteristicUuid === characteristic.uuid) {
self.nukiUSDIOCharacteristic = characteristic;
}
});
//
// Check to see if we found all of our characteristics.
//
if (self.nukiServiceGeneralDataIOCharacteristic &&
self.nukiUSDIOCharacteristic) {
console.log("All nuki.io characteristics that are needed were found.");
self.receivedData = Buffer.alloc(0);
// install a timeout function to finish the command with an error if no data was received from the nuki
// keyturner to complete the command
var dataReceiveTimeout = setTimeout(function () {
callback("Timeout while waiting for completing the command " + command);
}, 10000);
self.nukiUSDIOCharacteristic.subscribe(function () {
self.nukiUSDIOCharacteristic.on('read', function (data, isNotification) {
self._dataReceived.call(self, peripheral, data, isNotification, function (err, status) {
clearTimeout(dataReceiveTimeout);
if (err && _.isString(err)) {
err += " State: " + self.state;
}
// status is set when overall action is finished
// if !err && !status then further data is expected to be received
if (err || status) {
self.nukiUSDIOCharacteristic.removeListener.call(self, 'read', self._dataReceived);
self.nukiUSDIOCharacteristic.unsubscribe();
callback(err, status);
}
});
});
var peripheralId = peripheral.uuid;
var lock = self.options.nukiLock;
if (lock) {
switch (self._currentCommand) {
case 'lock':
case 'unlock':
case 'unlatch':
case 'lock_n_go':
case 'lock_n_go_with_unlatch':
self._initiateCmdLock.call(self, lock, self._currentCommand, callback);
break;
case 'getNukiStates':
self._initiateCmdGetLockState.call(self, lock, callback);
break;
default:
callback("Command (" + self._currentCommand + ") not implemented");
self._currentCommand = undefined;
}
} else {
callback("Not paired with this lock. Peripheral UUID is " + peripheralId);
}
});
}
});
},
_initiateCmdLock: function (lockConfig, action, callback) {
var self = this;
var sharedSecret = Buffer.from(lockConfig.sharedSecret, 'hex');
this._requestNonceFromSL(lockConfig.nukiAuthorizationId, sharedSecret, function (err, nonceK) {
if (err) {
callback(err);
} else {
var data1 = Buffer.alloc(6);
switch (action) {
case 'lock':
data1.writeUInt8(2, 0); // 0x02 is lock
break;
case 'unlock':
data1.writeUInt8(1, 0); // 0x01 is unlock
break;
case 'unlatch':
data1.writeUInt8(3, 0); // 0x03 is unlatch
break;
case 'lock_n_go':
data1.writeUInt8(4, 0); // 0x04 is Lock'n' Go
break;
case 'lock_n_go_with_unlatch':
data1.writeUInt8(5, 0); // 0x05 is Lock'n' with unlatch
break;
default:
console.log("Command " + action + " doesn't exist'");
break;
}
data1.writeUInt32LE(self.options.appId, 1);
data1.writeUInt8(0, 5); // no flags set
var wData = Buffer.concat([data1, nonceK]);
var wDataEncrypted = self._prepareEncryptedDataToSend(
nukible.prototype.CMD_LOCK_ACTION,
lockConfig.nukiAuthorizationId,
sharedSecret,
wData);
self.nukiUSDIOCharacteristic.write(wDataEncrypted, false, function (err) {
if (err) {
console.log("ERROR: failed to send encrypted message for CMD_LOCK_ACTION");
callback(err);
}
});
}
});
},
_initiateCmdGetLockState: function (lockConfig, callback) {
var self = this;
var sharedSecret = Buffer.from(lockConfig.sharedSecret, 'hex');
var data1 = Buffer.alloc(2);
data1.writeUInt16LE(nukible.prototype.CMD_NUKI_STATES);
var wDataEncrypted = self._prepareEncryptedDataToSend(
nukible.prototype.CMD_REQUEST_DATA,
lockConfig.nukiAuthorizationId,
sharedSecret,
data1);
self.nukiUSDIOCharacteristic.write(wDataEncrypted, false, function (err) {
if (err) {
console.log("ERROR: failed to send encrypted message for CMD_NUKI_STATES");
callback(err);
}
});
},
_requestNonceFromSL: function (authorizationId, sharedSecret, callback) {
this.receivedData = Buffer.alloc(0);
var wData = Buffer.alloc(2);
wData.writeUInt16LE(nukible.prototype.CMD_CHALLENGE, 0); // request a challenge
var wDataEncrypted = this._prepareEncryptedDataToSend(
nukible.prototype.CMD_REQUEST_DATA,
authorizationId,
sharedSecret,
wData);
this.callbackForChallenge = callback;
var self = this;
// console.log("_requestNonceFromSL: encrypted data", wDataEncrypted);
this.nukiUSDIOCharacteristic.write(wDataEncrypted, false, function (err) {
if (err) {
console.log("ERROR: failed to send encrypted message when requesting new challenge from SL");
self.callbackForChallenge = undefined;
callback(err);
}
});
},
_getTriggerStr: function (trigger) {
var triggerStr = "unknown";
switch (trigger) {
case 0:
triggerStr = "bluetooth";
break;
case 1:
triggerStr = "manual";
break;
case 2:
triggerStr = "button";
break;
}
return triggerStr;
},
_makeKeyBuffer: function (inKey) {
var keyAsBuffer = Buffer.alloc(0);
if (_.isString(inKey)) {
keyAsBuffer = Buffer.from(inKey, 'hex');
} else {
if (_.isArray(inKey)) {
keyAsBuffer = Buffer.from(inKey);
}
}
return keyAsBuffer;
},
_prepareDataToSend: function (cmd, data) {
var cmdBuffer = Buffer.alloc(2);
cmdBuffer.writeUInt16LE(cmd);
var responseData = Buffer.concat([cmdBuffer, data]);
var checksum = crc.crc16ccitt(responseData);
var checksumBuffer = Buffer.alloc(2);
checksumBuffer.writeUInt16LE(checksum);
var dataToSend = Buffer.concat([responseData, checksumBuffer]);
return dataToSend;
},
_crcOk: function (dataTocheck) {
if (dataTocheck) {
var dataForCrc = dataTocheck.slice(0, dataTocheck.length - 2);
var crcSumCalc = crc.crc16ccitt(dataForCrc);
var crcSumRetrieved = dataTocheck.readUInt16LE(dataTocheck.length - 2);
return crcSumCalc === crcSumRetrieved;
} else {
console.log("CRC check failed. DataToCheck is null");
return false;
}
},
_parseNukiStates: function (payload) {
var nukiStates = {};
// console.log("NUKI STATES", payload, payload.length);
nukiStates.nukiState = payload.readUInt8(0);
nukiStates.nukiStateStr = "unknown";
switch (nukiStates.nukiState) {
case 0:
nukiStates.nukiStateStr = "uninitialized";
break;
case 1:
nukiStates.nukiStateStr = "pairing mode";
break;
case 2:
nukiStates.nukiStateStr = "door mode";
break;
}
nukiStates.lockState = payload.readUInt8(1);
nukiStates.lockStateStr = "unknown";
switch (nukiStates.lockState) {
case 0: // uncalibrated
nukiStates.lockStateStr = "uncalibrated";
break;
case 1: // locked
nukiStates.lockStateStr = "locked";
break;
case 2: // unlocking
nukiStates.lockStateStr = "unlocking";
break;
case 3: // unlocked
nukiStates.lockStateStr = "unlocked";
break;
case 4: // locking
nukiStates.lockStateStr = "locking";
break;
case 5: //unlatched
nukiStates.lockStateStr = "unlatched";
break;
case 6: // unlocked (lock'n'go)
nukiStates.lockStateStr = "unlocked - lock'n'go";
break;
case 7: // unlatching
nukiStates.lockStateStr = "unlatching";
break;
case 0xFE: // motor blocked
nukiStates.lockStateStr = "motor blocked";
break;
case 0xFF: // undefined
nukiStates.lockStateStr = "undefined";
break;
}
nukiStates.trigger = payload.readUInt8(2);
nukiStates.triggerStr = this._getTriggerStr(nukiStates.trigger);
var year = payload.readUInt16LE(3);
var month = payload.readUInt8(5);
var day = payload.readUInt8(6);
var hour = payload.readUInt8(7);
var minute = payload.readUInt8(8);
var second = payload.readUInt8(9);
var timeOffset = payload.readInt16LE(10);
var nukiTime = moment(
{year: year, month: month - 1, day: day, hour: hour, minute: minute, second: second});
nukiTime.utcOffset(timeOffset);
nukiStates.time = nukiTime;
nukiStates.timeOffset = timeOffset;
nukiStates.batteryCritical = payload.readUInt8(12) !== 0;
nukiStates.batteryCriticalStr = "ok";
if (nukiStates.batteryCritical) {
nukiStates.batteryCriticalStr = "critical";
}
nukiStates.configUpdateCount = payload.readUInt8(13);
nukiStates.lockNGoTimer = payload.readUInt8(14);
nukiStates.lastLockAction = payload.readUInt8(15);
nukiStates.lastLockActionStr = "unknown";
switch (nukiStates.lastLockAction) {
case 1:
nukiStates.lastLockActionStr = "unlock";
break;
case 2:
nukiStates.lastLockActionStr = "lock";
break;
case 3:
nukiStates.lastLockActionStr = "unlatch";
break;
case 4:
nukiStates.lastLockActionStr = "lock ‘n’ go";
break;
case 5:
nukiStates.lastLockActionStr = "lock ‘n’ go with unlatch";
break;
}
nukiStates.lastLockActionTrigger = payload.readUInt8(16);
nukiStates.lastLockActionTriggerStr = this._getTriggerStr(nukiStates.lastLockActionTrigger);
nukiStates.lastLockActionTriggerCompletionStatus = payload.readUInt8(17);
return nukiStates;
},
_getNukiStates: function (options, peripheral, callback) {
// console.log("_getNukiStates called");
if (this._commandInProgress) {
callback("Other command still in progress");
} else {
this._commandInProgress = true;
var self = this;
var hadTimeout = false;
var commandTimeout = setTimeout(function () {
hadTimeout = true;
self._commandInProgress = false;
callback("Timeout in getNukiStates command");
}, 40000);
this._onPeripheralDiscovered("getNukiStates", peripheral, function (err, result) {
self._commandInProgress = false;
if (hadTimeout) {
return; // ignore result, because timeout was already signalled
}
clearTimeout(commandTimeout);
if (err) {
if (_.isFunction(callback)) {
callback(err);
}
} else {
if (result) {
if (_.isFunction(callback)) {
callback(null, result);
}
} else {
if (_.isFunction(callback)) {
callback("ERROR: unknown");
}
}
}
});
}
},
_dataReceived: function (peripheral, data, isNotification, callback) {
// console.log("DATA received", data);
var errorCode;
this.receivedData = Buffer.concat([this.receivedData, data]);
if (data.length < 20) { // hack
var status;
if (this._currentCommand !== 'getNukiStates') {
var tmpCmdId = this.receivedData.readUInt16LE();
switch (tmpCmdId) {
case nukible.prototype.CMD_ERROR:
errorCode = this.receivedData.readUInt8(2);
var errorCodeStr = errorCode.toString();
switch (errorCode) {
case nukible.prototype.K_ERROR_BAD_PIN:
errorCodeStr = "K_ERROR_BAD_PIN";
break;
case nukible.prototype.K_ERROR_BAD_NONCE:
errorCodeStr = "K_ERROR_BAD_NONCE";
break;
case nukible.prototype.K_ERROR_BAD_PARAMETER:
errorCodeStr = "K_ERROR_BAD_PARAMETER";
break;
}
this.receivedData = Buffer.alloc(0);
callback("ERROR reported from SL: " + errorCodeStr);
return;
case nukible.prototype.CMD_STATUS:
status = this.receivedData.readUInt8(2);
switch (status) {
case nukible.prototype.STATUS_ACCEPTED:
console.log("SL sent STATUS_ACCEPTED");
break;
case nukible.prototype.STATUS_COMPLETE:
console.log("SL sent STATUS_COMPLETE");
callback(null, {status: 'complete'});
}
this.receivedData = Buffer.alloc(0);
return;
}
}
var nonceK = this.receivedData.slice(0, 24);
// var authorizationId = this.receivedData.readUInt32LE(24);
// var messageLen = this.receivedData.readUInt16LE(28);
var encryptedMessage = this.receivedData.slice(30);
var peripheralId = peripheral.uuid;
var lock = this.options.nukiLock;
if (lock) {
if (lock.sharedSecret) {
var sharedSecret = Buffer.from(lock.sharedSecret, 'hex');
var prefixBuff = Buffer.alloc(16);
prefixBuff.fill(0);
var decryptedMessge = sodium.api.crypto_secretbox_open(Buffer.concat([prefixBuff, encryptedMessage]),
nonceK,
sharedSecret);
if (this._crcOk(decryptedMessge)) {
// console.log("CRC ok. Decrypted Message:", decryptedMessge);
var authorizationId = decryptedMessge.readUInt32LE(0);
if (_.isString(lock.nukiAuthorizationId)) {
lock.nukiAuthorizationId = parseInt(lock.nukiAuthorizationId);
}
if (authorizationId === lock.nukiAuthorizationId) {
var cmdId = decryptedMessge.readUInt16LE(4);
var payload = decryptedMessge.slice(6, decryptedMessge.length - 2);
switch (cmdId) {
case nukible.prototype.CMD_CHALLENGE:
// console.log("CHALLENGE received:", payload, payload.length);
if (this.callbackForChallenge) {
this.callbackForChallenge(null, payload);
}
break;
case nukible.prototype.CMD_NUKI_STATES:
var nukiStates = this._parseNukiStates(payload);
callback(null, {status: 'complete', states: nukiStates});
break;
case nukible.prototype.CMD_STATUS:
status = payload.readUInt8(0);
console.log("SL sent status " + status.toString(16));
if (status === nukible.prototype.STATUS_COMPLETE) {
console.log("calling callback with status complete");
callback(null, {status: 'complete'});
} else {
if (status === nukible.prototype.STATUS_ACCEPTED) {
console.log("SL sent status accepted");
} else {
callback("ERROR: SL sent STATUS not complete");
}
}
break;
case nukible.prototype.CMD_ERROR:
errorCode = payload.readUInt8(0);
var errorCommandId = payload.readUInt16LE(1);
switch (errorCode) {
case nukible.prototype.P_ERROR_NOT_PAIRING:
//callback("ERROR: public key is being requested via request data command, but keyturner is not in pairing mode");
callback(null, {status: 'notInPairingMode'});
break;
default:
callback("ERROR from SL: " + errorCode.toString(16) + " for command " + errorCommandId.toString(16));
}
break;
default:
console.log("UNKNOWN message:", decryptedMessge);
callback("ERROR: message received but not expected");
}
} else {
console.log("ignoring data for other authorization-id (" + authorizationId + ")");
}
} else {
callback("Wrong CRC.");
}
} else {
callback("ERROR: don't have sharedSecret for lock with uuid " + lock.nukiUuid);
}
} else {
callback("Not paired with this lock. Peripheral UUID is " + peripheralId);
}
this.receivedData = Buffer.alloc(0);
}
},
getNukiStates: function (options, callback) {
if (options) {
_.defaults(this.options, options);
}
var self = this;
noble.on('discover', function (peripheral) {
var peripheralId = peripheral.uuid;
var lockPeripheralId = self.options.peripheralId;
if (lockPeripheralId === peripheralId) {
self._getNukiStates.call(self, options, peripheral, callback);
}
noble.removeAllListeners('discover');
});
},
scanForLockStateChanges: function (options, callback) {
var self = this;
if (options) {
_.defaults(this.options, options);
}
this._waitForBluetoothPoweredOn(200, function (err) {
if (err) {
callback(err);
} else {
var newStateAvail = false;
var waitForBridgeReadTimeout;
var currentlyReadingLockState = false;
var previousStateBuffer = Buffer.alloc(0);
noble.on('discover', function (peripheral) {
var peripheralId = peripheral.uuid;
var lockPeripheralId = self.options.peripheralId;
if (lockPeripheralId === peripheralId) {
if (peripheral.advertisement.manufacturerData.length >= 24) {
var serviceUUidStr = peripheral.advertisement.manufacturerData.slice(4, 4 + 16).toString('hex');
if (serviceUUidStr === nukible.prototype.nukiServiceUuid) {
var stateBuffer = peripheral.advertisement.manufacturerData.slice(4 + 16);
if (!previousStateBuffer.equals(stateBuffer)) {
console.log("Peripheral: " + peripheral.id + " with rssi " + peripheral.rssi + " has state: " +
stateBuffer.toString('hex'));
previousStateBuffer = stateBuffer;
var byte5 = stateBuffer.readUInt8(4);
// console.log("byte4: " + byte5.toString(16));
var hasStateChange = (byte5 & 0x1) !== 0;
console.log("newStateAvail: " + newStateAvail + ", hasStateChange: " + hasStateChange +
", currentlyReadingLockState: " + currentlyReadingLockState);
if (!newStateAvail && hasStateChange) {
// lock has signalled new state available
console.log("nuki lock has signalled new state is available");
// if a Nuki bridge is installed and paired with the Nuki keyturner, the bridge will detect the
// state change too and will read the state change. Give it a chance to read the states before
// this program does it too
if (options.bridgeReadsFirst) {
var timeoutInSeconds = 65;
waitForBridgeReadTimeout = setTimeout(function () {
if (!currentlyReadingLockState) {
console.log("WARNING: reading lock state after bridge did not read it for " +
timeoutInSeconds +
" seconds");
currentlyReadingLockState = true;
self._getNukiStates.call(self, options, peripheral, function (err, result) {
currentlyReadingLockState = false;
callback(err, result);
});
}
}, timeoutInSeconds * 1000);
} else {
if (!currentlyReadingLockState) {
currentlyReadingLockState = true;
setTimeout(function () {
self._getNukiStates.call(self, options, peripheral, function (err, result) {
currentlyReadingLockState = false;
callback(err, result);
});
}, 5000);
}
}
}
if (!currentlyReadingLockState &&
(options.bridgeReadsFirst && newStateAvail && !hasStateChange)) {
// lock no more signals new state avail
console.log("nuki lock has signalled new state is no more available");
clearTimeout(waitForBridgeReadTimeout);
console.log("Reading lock state after bridge read it");
currentlyReadingLockState = true;
setTimeout(function () { // use a little delay before reading the nuki states
self._getNukiStates.call(self, options, peripheral, function (err, result) {
currentlyReadingLockState = false;
callback(err, result);
});
}, 5000);
}
newStateAvail = hasStateChange;
}
}
}
}
});
}
});
},
stopScanForLockStateChanges: function () {
noble.removeAllListeners('discover');
},
_lockAction: function (command, options, callback) {
if (this._commandInProgress) {
callback("Other command still in progress");
} else {
this._commandInProgress = true;
var self = this;
if (options) {
_.defaults(this.options, options);
}
this._waitForBluetoothPoweredOn(200, function (err) {
if (err) {
callback(err);
} else {
var t = setTimeout(function () {
console.log("Timeout. Aborting " + command);
noble.removeAllListeners('discover');
self._commandInProgress = false;
if (_.isFunction(callback)) {
callback(command + " timeout");
}
}, 30000);
noble.on('discover',
function (peripheral) {
var peripheralId = peripheral.uuid;
var lockPeripheralId = self.options.peripheralId;
if (lockPeripheralId === peripheralId) {
noble.removeAllListeners('discover');
console.log("Running command " + command);
self._onPeripheralDiscovered.call(self, command, peripheral, function (err, result) {
self._commandInProgress = false;
clearTimeout(t);
if (err) {
if (_.isFunction(callback)) {
callback(err);
}
} else {
if (result && result.status === 'complete') {
if (_.isFunction(callback)) {
callback(null);
}
} else {
if (_.isFunction(callback)) {
callback("ERROR: unknown");
}
}
}
});
} else {
// console.log("ignoring peripheral with id " + peripheralId);
}
});
}
});
}
},
lock: function (options, callback) {
var self = this;
self._lockAction('lock', options, callback);
},
unlock: function (options, callback) {
var self = this;
self._lockAction('unlock', options, callback);
},
unlatch: function (options, callback) {
var self = this;
self._lockAction('unlatch', options, callback);
},
lock_n_go: function (options, callback) {
var self = this;
self._lockAction('lock_n_go', options, callback);
},
lock_n_go_with_unlatch: function (options, callback) {
var self = this;
self._lockAction('lock_n_go_with_unlatch', options, callback);
},
pair: function (options, callback) {
if (options) {
_.defaults(this.options, options);
}
this.isPaired = false;
this.isInPairing = true;
this.peripheralQueue = [];
this.knownPeripherals = [];
this.pairedPeripheralsId = Object.keys(options.nukiLocks);
var self = this;
function discontinue(err, results) {
clearInterval(i);
clearTimeout(t);
noble.removeAllListeners('discover');
noble.removeAllListeners('stateChange');
self.isInPairing = false;
delete self.peripheralInProgress;
if (_.isFunction(callback)) {
callback(err, results);
}
}
var i = setInterval(function () {
if (!self.peripheralInProgress && self.peripheralQueue.length > 0) {
self.peripheralInProgress = self.peripheralQueue.shift();
self.knownPeripherals.push(self.peripheralInProgress.id);
self._pairingOnPeripheralDiscovered.call(self, self.peripheralInProgress, function (err, result) {
if (err) {
self.isPaired = false;
discontinue(err);
} else {
if (result && result.status) {
switch (result.status) {
case 'notInPairingMode':
console.log(self.peripheralInProgress.advertisement.localName +
" is not in pairing mode. Ignoring it.");
delete self.peripheralInProgress;
break;
case 'paired':
self.isPaired = true;
discontinue(null, result.results);
break;
case 'disconnected':
if (self.isPaired || !self.isInPairing) {
console.log("Peripheral disconnected.");
} else {
console.log("ERROR: peripheral disconnected during pairing.");
}
delete self.peripheralInProgress;
break;
default:
discontinue("ERROR: pairing failed for unknown reason");
}
}
}
});
}
}, 1000);
var t = setTimeout(function () {
clearInterval(i);
console.log("Timeout. Aborting pairing.");
noble.removeAllListeners('discover');
noble.removeAllListeners('stateChange');
if (_.isFunction(callback)) {
self.isInPairing = false;
callback("pairing timeout");
}
}, 60000);
if (noble.state == 'poweredOn') {
noble.startScanning();
}
noble.on('discover', function (peripheral) {
if (_.contains(self.pairedPeripheralsId, peripheral.id)) {
console.log("Ignoring already paired peripheral " + peripheral.id);
return;
}
if (!peripheral.connectable) {
//console.log("Ignoring not connectable peripheral " + peripheral.id);
return;
}
if (peripheral.advertisement.localName && peripheral.advertisement.localName.startsWith('Nuki')) { // Nuki locks have a name
if (!_.contains(self.knownPeripherals, peripheral.id)) {
console.log("Adding peripheral " + peripheral.advertisement.localName + " to try-to-pair queue");
self.peripheralQueue.push(peripheral);
}
}
});
},
_pairingOnPeripheralDiscovered: function (peripheral, callback) {
var self = this;