public static LinkClient Connect(SkynetAndroid.Base.SkynetAndroid mSkynet, string targetToxId, IPAddress ip, int port,
Action <byte[]> msgHandler,
Action closeHandler,
Action <Exception> errorHander = null)
{
LinkClient mLinkClient = new LinkClient(mSkynet, targetToxId, ip, port);
mLinkClient.msgHandler = msgHandler;
mLinkClient.closeHandler = closeHandler;
mLinkClient.errorHander = errorHander;
var res = mLinkClient.HandShake().GetAwaiter().GetResult();
if (!res)
{
// 链接tox失败
mLinkClient.Close();
return(null);
}
var connectRes = mLinkClient.Connect().GetAwaiter().GetResult();
if (!connectRes)
{
// 创建socket失败
mLinkClient.Close();
return(null);
}
return(mLinkClient);
}
public static LinkClient Connect(SkynetAndroid.Base.SkynetAndroid mSkynet, string targetToxId, string targetNodeID)
{
LinkClient mLinkClient = new LinkClient(mSkynet, targetToxId, null, 0);
mLinkClient.serverId = targetNodeID;
mLinkClient.serverToxId = new ToxId(targetToxId);
mLinkClient.mSkynet.addNewReqListener(mLinkClient.clientId, mLinkClient.newReqListener);
return(mLinkClient);
}
public void Connect(string[] args)
{
if (args.Length != 4 && args.Length != 0)
{
Console.WriteLine("usage: SharpLink [local_port] [target_tox_id] [target_ip] [target_port]");
return;
}
// 线程监控程序
Task.Run(() =>
{
while (runningFlag)
{
int workerThreads, completionPortThreads;
ThreadPool.GetAvailableThreads(out workerThreads, out completionPortThreads);
int workerThreadsMax, completionPortThreadsMax;
ThreadPool.GetMaxThreads(out workerThreadsMax, out completionPortThreadsMax);
int workerThreadsMin, completionPortThreadsMin;
ThreadPool.GetMinThreads(out workerThreadsMin, out completionPortThreadsMin);
ThreadPool.SetMinThreads(workerThreadsMax - workerThreads + 40, workerThreadsMax - workerThreads + 40);
Utils.Log("CurrentThreads: " + (workerThreadsMax - workerThreads), true);
Thread.Sleep(2000);
}
});
if (args.Length == 4)
{
if (localPort == Convert.ToInt32(args[0]) && targetToxId == args[1] && targetIP == args[2] && targetPort == Convert.ToInt32(args[3]))
{
// already started
return;
}
localPort = Convert.ToInt32(args[0]);
targetToxId = args[1];
targetIP = args[2];
targetPort = Convert.ToInt32(args[3]);
if (!ToxId.IsValid(targetToxId))
{
Console.WriteLine("not a valid id");
Console.WriteLine("usage: SharpLink [local_port] [target_tox_id] [target_ip] [target_port]");
return;
}
// start check connection task
Task.Run(() =>
{
while (runningFlag)
{
bool IsConnected = mSkynet.HandShake(new ToxId(targetToxId)).GetAwaiter().GetResult();
if (!IsConnected)
{
var toxid = new ToxId(targetToxId);
ToxKey toxkey = toxid.PublicKey;
int friendNum = mSkynet.tox.GetFriendByPublicKey(toxkey);
if (friendNum != -1)
{
mSkynet.tox.DeleteFriend(friendNum);
Utils.Log("Event: can not connect, resend friend request");
}
mSkynet.HandShake(new ToxId(targetToxId)).GetAwaiter().GetResult();
}
Thread.Sleep(60 * 1000);
}
});
// create local socket server
IPAddress ip = IPAddress.Parse("0.0.0.0");
var serverSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
serverSocket.Bind(new IPEndPoint(ip, localPort));
serverSocket.Listen(1000);
Task.Factory.StartNew(() =>
{
while (runningFlag)
{
Utils.Log("Event: Waiting socket");
List <byte> tempData = new List <byte>();
Socket clientSocket = serverSocket.Accept();
Task.Factory.StartNew(() =>
{
bool closeFlag = false;
LinkClient mlink = null;
string tempConnectId = Guid.NewGuid().ToString();
Task.Factory.StartNew(() =>
{
while (runningFlag)
{
byte[] buf = new byte[1024 * 512];
try
{
int size = 0;
if (clientSocket != null && clientSocket.Connected)
{
size = clientSocket.Receive(buf);
}
else
{
break;
}
if (mlink == null)
{
tempData.AddRange(buf.Take(size));
}
if (size == 0)
{
// socket closed
if (mlink != null)
{
mlink.CloseRemote();
mlink.Close();
}
if (!closeFlag && clientSocket.Connected)
{
closeFlag = true;
try
{
clientSocket.Shutdown(SocketShutdown.Both);
}
catch (SocketException ex)
{
Utils.Log("Event ERROR: " + ex.Message);
}
clientSocket.Close();
if (mlink != null)
{
Utils.Log("Event: Close Connection, ClientId: " + mlink.clientId + ", ConnectId: " + tempConnectId);
}
else
{
Utils.Log("Event: Close Connection, ClinetId: null" + ", ConnectId: " + tempConnectId);
}
}
break;
}
if (mlink != null)
{
var res = mlink.Send(buf, size);
if (!res && !closeFlag && clientSocket.Connected)
{
closeFlag = true;
try
{
clientSocket.Shutdown(SocketShutdown.Both);
}
catch (SocketException ex)
{
Utils.Log("Event ERROR: " + ex.Message);
}
clientSocket.Close();
mlink.CloseRemote();
mlink.Close();
Utils.Log("Event: Tox send message failed, ClientId: " + mlink.clientId + ", ConnectId: " + tempConnectId);
Utils.Log("Event: Close Connection, ClientId: " + mlink.clientId + ", ConnectId: " + tempConnectId);
break;
}
}
}
catch (Exception e)
{
Utils.Log("Event: ERROR " + e.Message);
Utils.Log(e.StackTrace);
if (mlink != null)
{
mlink.CloseRemote();
mlink.Close();
}
if (!closeFlag && clientSocket.Connected)
{
closeFlag = true;
try
{
clientSocket.Shutdown(SocketShutdown.Both);
}
catch (SocketException ex)
{
Utils.Log("Event ERROR: " + ex.Message);
}
clientSocket.Close();
if (mlink != null)
{
Utils.Log("Event: Close Connection, ClientId: " + mlink.clientId + ", ConnectId: " + tempConnectId);
}
else
{
Utils.Log("Event: Close Connection, ClinetId: null" + ", ConnectId: " + tempConnectId);
}
}
break;
}
}
}, TaskCreationOptions.LongRunning).ForgetOrThrow();
mlink = LinkClient.Connect(mSkynet, targetToxId, IPAddress.Parse(targetIP), targetPort,
// message handler
(msg) =>
{
try
{
if (clientSocket != null && clientSocket.Connected)
{
clientSocket.Send(msg, SocketFlags.None);
}
}
catch (Exception e)
{
Utils.Log("ERROR " + e.Message);
Utils.Log(e.StackTrace);
mlink.CloseRemote();
mlink.Close();
if (!closeFlag && clientSocket.Connected)
{
closeFlag = true;
try
{
clientSocket.Shutdown(SocketShutdown.Both);
}
catch (SocketException ex)
{
Utils.Log("Event ERROR: " + ex.Message);
}
clientSocket.Close();
Utils.Log("Event: Close Connection, ClientId: " + mlink.clientId + ", ConnectId: " + tempConnectId);
}
}
},
// close handler
() =>
{
if (!closeFlag && clientSocket.Connected)
{
closeFlag = true;
try
{
clientSocket.Shutdown(SocketShutdown.Both);
}
catch (SocketException ex)
{
Utils.Log("Event ERROR: " + ex.Message);
}
clientSocket.Close();
Utils.Log("Event: Close Connection, ClientId: " + mlink.clientId + ", ConnectId: " + tempConnectId);
}
}
);
if (mlink == null)
{
// connected failed
Utils.Log("Event: Connected failed, ClientId: null" + ", ConnectId: " + tempConnectId);
if (!closeFlag && clientSocket.Connected)
{
closeFlag = true;
try
{
clientSocket.Shutdown(SocketShutdown.Both);
}
catch (SocketException ex)
{
Utils.Log("Event ERROR: " + ex.Message);
}
clientSocket.Close();
Utils.Log("Event: Close Connection, ClientId: null" + ", ConnectId: " + tempConnectId);
}
return;
}
if (tempData.Count != 0)
{
mlink.Send(tempData.ToArray(), tempData.Count);
}
// check if socket has closed
if (closeFlag)
{
// socket has closed
Utils.Log("Event: Close Remote, ClientId: " + mlink.clientId + ", ConnectId: " + tempConnectId);
mlink.CloseRemote();
mlink.Close();
}
}, TaskCreationOptions.LongRunning).ForgetOrThrow();
}
}, TaskCreationOptions.LongRunning).ForgetOrThrow();
}
mSkynet.addNewReqListener("", (req) =>
{
// handle
if (req.toNodeId == "" && req.url == "/connect")
{
Utils.Log("Event: Task Connect to " + req.fromNodeId + ", MessageId: " + req.uuid);
Task.Factory.StartNew(() =>
{
// connect to server received, create sockets
Utils.Log("Event: Task Started Connect to " + req.fromNodeId);
try
{
string reqStr = Encoding.UTF8.GetString(req.content);
string ipstr = reqStr.Split('\n')[0];
string port = reqStr.Split('\n')[1];
Utils.Log("Event: Connect to " + ipstr + " " + port + " " + req.fromNodeId);
IPAddress targetIp = IPAddress.Parse(ipstr);
Socket mClientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
bool closeFlag = false;
mClientSocket.Connect(new IPEndPoint(targetIp, Convert.ToInt32(port)));
Utils.Log("Event: Connect to " + ipstr + " " + port + " Success " + req.fromNodeId);
var mlink = LinkClient.Connect(mSkynet, req.fromToxId, req.fromNodeId);
req.toNodeId = mlink.clientId;
Utils.Log("Event: Connect to " + ipstr + " " + port + " Success " + req.fromNodeId + " , mLinkID: " + mlink.clientId);
mlink.OnMessage((msg) =>
{
try
{
Utils.Log("Event: Start Write Message, mLinkID: " + mlink.clientId);
if (mClientSocket != null && mClientSocket.Connected)
{
mClientSocket.Send(msg, SocketFlags.None);
}
Utils.Log("Event: Write Message Success, mLinkID: " + mlink.clientId);
}
catch (Exception e)
{
Utils.Log("Event: ERROR " + e.Message);
Utils.Log(e.StackTrace);
mlink.CloseRemote();
mlink.Close();
if (!closeFlag && mClientSocket.Connected)
{
closeFlag = true;
try
{
mClientSocket.Shutdown(SocketShutdown.Both);
}
catch (SocketException ex)
{
Utils.Log("Event: " + ex.Message);
}
mClientSocket.Close();
Utils.Log("Event: Close Socket" + ipstr + " " + port + " mLinkID " + mlink.clientId);
}
}
});
mlink.OnClose(() =>
{
if (!closeFlag && mClientSocket.Connected)
{
closeFlag = true;
try
{
mClientSocket.Shutdown(SocketShutdown.Both);
}
catch (SocketException ex)
{
Utils.Log("Event: " + ex.Message);
}
mClientSocket.Close();
Utils.Log("Event: Close Socket" + ipstr + " " + port + " mLinkID " + mlink.clientId);
}
});
// send response after all handler has been set
mSkynet.sendResponse(req.createResponse(Encoding.UTF8.GetBytes("OK")), new ToxId(req.fromToxId));
Task.Factory.StartNew(() =>
{
while (runningFlag)
{
byte[] buf = new byte[1024 * 512];
try
{
Utils.Log("Event: Start Read Data, Clientid: " + mlink.clientId);
int size = 0;
if (mClientSocket != null && mClientSocket.Connected)
{
size = mClientSocket.Receive(buf);
}
else
{
Utils.Log("Event: Socket already closed" + ipstr + " " + port + " mLinkID " + mlink.clientId);
break;
}
if (size == 0)
{
if (!closeFlag && mClientSocket.Connected)
{
Utils.Log("Event: Close Connection, Clientid: " + mlink.clientId);
closeFlag = true;
try
{
mClientSocket.Shutdown(SocketShutdown.Both);
}
catch (SocketException ex)
{
Utils.Log("Event: " + ex.Message);
}
mClientSocket.Close();
}
mlink.CloseRemote();
mlink.Close();
break;
}
else
{
Utils.Log("Event: Read Data " + size + ", Clientid: " + mlink.clientId);
}
var res = mlink.Send(buf, size);
if (!res)
{
// send failed
if (!closeFlag && mClientSocket.Connected)
{
closeFlag = true;
try
{
mClientSocket.Shutdown(SocketShutdown.Both);
}
catch (SocketException ex)
{
Utils.Log("Event: " + ex.Message);
}
mClientSocket.Close();
mlink.Close();
Utils.Log("Event: Tox send message failed, Clientid: " + mlink.clientId);
break;
}
}
}
catch (Exception e)
{
/*if (e.ErrorCode != 10004) // this is not an error
* {
* Console.WriteLine("Time: " + Utils.UnixTimeNow() + " Event: ERROR " + e.Message);
* Console.WriteLine(e.StackTrace);
* }*/
Utils.Log("Event: ERROR " + e.Message);
Utils.Log(e.StackTrace);
mlink.CloseRemote();
mlink.Close();
if (!closeFlag && mClientSocket.Connected)
{
closeFlag = true;
try
{
mClientSocket.Shutdown(SocketShutdown.Both);
}
catch (SocketException ex)
{
Utils.Log("Event: " + ex.Message);
}
mClientSocket.Close();
Utils.Log("Event: Close Connection, ClientId: " + mlink.clientId);
}
break;
}
}
}, TaskCreationOptions.LongRunning).ForgetOrThrow();
Utils.Log("Event: Connect to " + ipstr + " " + port + " All Success " + req.fromNodeId + ", mLinkID: " + mlink.clientId);
}
catch (Exception e)
{
Utils.Log("Event: ERROR " + e.Message);
Utils.Log(e.StackTrace);
// connected failed
string reqStr = Encoding.UTF8.GetString(req.content);
string ipstr = reqStr.Split('\n')[0];
string port = reqStr.Split('\n')[1];
Utils.Log("Event: Connect to " + ipstr + " " + port + " failed");
var response = req.createResponse(Encoding.UTF8.GetBytes("failed"));
mSkynet.sendResponse(response, new ToxId(response.toToxId));
}
}, TaskCreationOptions.LongRunning).ForgetOrThrow();
}
else if (req.toNodeId == "" && req.url == "/handshake")
{
var response = req.createResponse(Encoding.UTF8.GetBytes("OK"));
Utils.Log("Event: HandShake from " + response.toToxId + ", MessageID: " + req.uuid, true);
Utils.Log("Event: Send HandShake response " + response.uuid + ", ToxId: " + response.toToxId, true);
Console.WriteLine("Event: HandShake from " + response.toToxId + ", MessageID: " + req.uuid);
mSkynet.sendResponse(response, new ToxId(response.toToxId));
}
});
while (runningFlag)
{
Thread.Sleep(10);
}
mSkynet.stop();
}