54 lines
2.0 KiB
C#
54 lines
2.0 KiB
C#
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using SafeMobileLib.Registration;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Net;
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using System.Net.Sockets;
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using System.Text;
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using System.Threading.Tasks;
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namespace SafeMobileLib.Helpers
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{
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public class RegistrationHelper
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{
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public static Int16 TimeoutSeconds = 7;
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public static String GatewayIP = "127.0.0.1";
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public static async Task<RegistrationResponse> RegisterGateway(String appServerIP, Int16 registrationPort)
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{
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return await (Task.Factory.StartNew(() =>
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{
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try
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{
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TcpClient client = new TcpClient();
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IPEndPoint serverEndPoint = new IPEndPoint(IPAddress.Parse(appServerIP), registrationPort);
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client.Connect(serverEndPoint);
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NetworkStream clientStream = client.GetStream();
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GatewayIP = (client.Client.LocalEndPoint.ToString().Split(':'))[0];
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UTF8Encoding encoding = new UTF8Encoding();
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byte[] buffer = encoding.GetBytes("200");
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clientStream.Write(buffer, 0, buffer.Length);
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Utils.WriteLine($"Sent registration request to server {appServerIP}:{registrationPort}, waiting...");
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byte[] message = new byte[1024];
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//set read timeout to 10s
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clientStream.ReadTimeout = TimeoutSeconds * 1000;
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int result = clientStream.Read(message, 0, message.Length);
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if (result < 1)
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return new RegistrationResponse("");
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String decodedString = encoding.GetString(message).Trim('\0');
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return new RegistrationResponse(decodedString);
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}
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catch(Exception ex)
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{
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Utils.WriteLine("Registration exception: " + ex.ToString(), ConsoleColor.Red);
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return new RegistrationResponse("");
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}
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}));
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}
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}
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}
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