| let server = net.createServer(function (connection) { |
| console.log('Client connected'); |
| connection.on('data', function (data) { |
| cdata = data.toString(); |
| parts = cdata.split(";"); |
| imei_number = parts[1]; |
| dbConnecct(); |
| if (!empty(imei_number)) { |
| if (checkDeviceRegistered(imei_number)) { // Checking the device already registered in DB |
| // True |
| //Do something if device already registered |
| logDeviceConnection(imei_number); // Save the request in the file |
| } else { |
| // False |
| //If device is not registerd this code will execite |
| registerDevice(imei_number); // Registering/storing device information in System/DB |
| logNewDevice(imei_number); // Save the new device connection is file |
| notifySystemAdmin(imei_number); // Notifying sytem admin about device connection |
| } |
| connection.write("Device connection establised"); |
| } else { |
| connection.write("Device did not recognised"); |
| } |
| }); |
| connection.on('end', function () { |
| console.log('Client disconnected'); |
| }); |
| }); |
| server.timeout =0; |
| server.listen(port, function () { |
| console.log('Server is now listening on ' + port); |
| }); |
| server.on('error', function (err) { console.log(err); |
| }); |
| function dbConnecct() { |
| con.connect(function (err) { |
| if (err) throw err; |
| }); |
| } |
| function checkDeviceRegistered(imei_number) { |
| con.query("SELECTFROM devices WHERE imei=" + imei_number, function (err, result, fields) { |
| if (err) throw err; |
| if (result) { |
| return true; |
| } else |
| return false; |
| }); |
| } |
| function logDeviceConnection() { |
| } |
| function registerDevice() { // Registering/storing device information in System/DB |
| } |
| function logNewDevice() { // Save the new device connection is file |
| } |
