/// <summary>
/// Send a Tcp connection request to a new peer.
/// </summary>
/// <param name="Message">The request message.</param>
/// <param name="PeerIP">The IP address of the new peer [IP:Port].</param>
public static void SendConnectionRequest(string Message, string PeerIP)
{
Thread t = new Thread(new ParameterizedThreadStart(
delegate
{
// converts UTF16 to Byte[]
byte[] MessageByte = ASCIIEncoding.Unicode.GetBytes(Message);
TcpClient client = new TcpClient();
NetworkStream stream = null;
try
{
string[] subPeerIP = PeerIP.Split(':');
string ip = subPeerIP[0];
int port = int.Parse(subPeerIP[1]);
// control the peer ip
ControlPeerIPAddress(ref ip, port);
// connect to peer
client = new TcpClient();
client.Connect(ip, port);
// get stream
stream = client.GetStream();
// send the request
stream.Write(MessageByte, 0, MessageByte.Length);
Global.CountUploadRate += MessageByte.Length;
// wait a reply
System.Timers.Timer timer = new System.Timers.Timer(15000);
timer.Elapsed += new ElapsedEventHandler(delegate { Thread.CurrentThread.Abort(); });
timer.Enabled = true;
byte[] reply_message_byte = new byte[3072];
byte[] bytes = new byte[3072];
stream.Read(reply_message_byte, 0, reply_message_byte.Length);
int i = 0;
int num_bytes_read = 0;
do
{
if (stream.DataAvailable)
{
stream.Read(bytes, 0, bytes.Length);
Array.Copy(bytes, 0, reply_message_byte, num_bytes_read, i);
num_bytes_read += i;
}
else
{
Thread.Sleep(10);
if (!stream.DataAvailable)
{
break;
}
i = 1;
}
} while (i != 0);
timer.Stop();
string reply = ASCIIEncoding.Unicode.GetString(reply_message_byte);
string[] sub_reply = reply.Split('\n');
// if the peer have accepted the connection request
if (sub_reply[0].Substring(0, 4) == "Nova" && sub_reply[1].Substring(0, 10) == "CONNECT_OK")
{
Utilities.Log.Write("Connection established with " + PeerIP, Utilities.Log.LogCategory.ConnectionRequests);
// create a new peer object
Objects.Peer peer = new Objects.Peer(PeerIP, client, stream);
peer.ID = "EMPTY";
// send a EI-message
string eiMessParam1;
string eiMessParam2;
if (Global.MessageEncryptionEnabled == true)
{
eiMessParam1 = "y";
eiMessParam2 = string.Format("{0},{1}",
Utilities.Converterer.ConvertByteToHex(peer.MyAsymmetricEncryptionKey.N),
Utilities.Converterer.ConvertByteToHex(peer.MyAsymmetricEncryptionKey.E));
}
else
{
eiMessParam1 = "n";
eiMessParam2 = string.Empty;
}
// create and send a EI-message
Messages.IMessage eiMess = Messages.MessagesFactory.Instance.CreateMessage(Messages.Commands.EI, false, eiMessParam1, eiMessParam2);
peer.Send(eiMess);
// add the peer in the list of the peers
Lists.PeersList.AddPeer(peer);
}
else
{
stream.Close();
client.Close();
}
timer.Close();
}
catch
{
if (client != null)
{
client.Close();
}
if (stream != null)
{
stream.Close();
}
Utilities.Log.Write("The connection request hasn't been sent, probably the peer (" + PeerIP + ") is offline or disconnected", Utilities.Log.LogCategory.Error);
}
}));
t.Name = "MessageSender_Connection_Request_Sending";
t.IsBackground = true;
t.Start();
}
/// <summary>
/// Send a Tcp connection request to a new peer.
/// </summary>
/// <param name="Message">The request message.</param>
/// <param name="PeerIP">The IP address of the new peer [IP:Port].</param>
public static void SendConnectionRequest(string Message, string PeerIP)
{
Thread t = new Thread(new ParameterizedThreadStart(
delegate
{
// converts UTF16 to Byte[]
byte[] MessageByte = ASCIIEncoding.Unicode.GetBytes(Message);
TcpClient client = new TcpClient();
NetworkStream stream = null;
try
{
string[] subPeerIP = PeerIP.Split(':');
string ip = subPeerIP[0];
int port = int.Parse(subPeerIP[1]);
// control the peer ip
ControlPeerIPAddress(ref ip, port);
// connect to peer
client = new TcpClient();
client.Connect(ip, port);
// get stream
stream = client.GetStream();
// send the request
stream.Write(MessageByte, 0, MessageByte.Length);
Global.CountUploadRate += MessageByte.Length;
// wait a reply
System.Timers.Timer timer = new System.Timers.Timer(15000);
timer.Elapsed += new ElapsedEventHandler(delegate { Thread.CurrentThread.Abort(); });
timer.Enabled = true;
byte[] reply_message_byte = new byte[3072];
byte[] bytes = new byte[3072];
stream.Read(reply_message_byte, 0, reply_message_byte.Length);
int i = 0;
int num_bytes_read = 0;
do
{
if (stream.DataAvailable)
{
stream.Read(bytes, 0, bytes.Length);
Array.Copy(bytes, 0, reply_message_byte, num_bytes_read, i);
num_bytes_read += i;
}
else
{
Thread.Sleep(10);
if (!stream.DataAvailable)
{
break;
}
i = 1;
}
} while (i != 0);
timer.Stop();
string reply = ASCIIEncoding.Unicode.GetString(reply_message_byte);
string[] sub_reply = reply.Split('\n');
// if the peer have accepted the connection request
if (sub_reply[0].Substring(0, 4) == "Nova" && sub_reply[1].Substring(0, 10) == "CONNECT_OK")
{
Utilities.Log.Write("Connection established with " + PeerIP, Utilities.Log.LogCategory.ConnectionRequests);
// create a new peer object
Objects.Peer peer = new Objects.Peer(PeerIP, client, stream);
peer.ID = "EMPTY";
// send a EI-message
string eiMessParam1;
string eiMessParam2;
if (Global.MessageEncryptionEnabled == true)
{
eiMessParam1 = "y";
eiMessParam2 = string.Format("{0},{1}",
Utilities.Converterer.ConvertByteToHex(peer.MyAsymmetricEncryptionKey.N),
Utilities.Converterer.ConvertByteToHex(peer.MyAsymmetricEncryptionKey.E));
}
else
{
eiMessParam1 = "n";
eiMessParam2 = string.Empty;
}
// create and send a EI-message
Messages.IMessage eiMess = Messages.MessagesFactory.Instance.CreateMessage(Messages.Commands.EI, false, eiMessParam1, eiMessParam2);
peer.Send(eiMess);
// add the peer in the list of the peers
Lists.PeersList.AddPeer(peer);
}
else
{
stream.Close();
client.Close();
}
timer.Close();
}
catch
{
if (client != null)
{
client.Close();
}
if (stream != null)
{
stream.Close();
}
Utilities.Log.Write("The connection request hasn't been sent, probably the peer (" + PeerIP + ") is offline or disconnected", Utilities.Log.LogCategory.Error);
}
}));
t.Name = "MessageSender_Connection_Request_Sending";
t.IsBackground = true;
t.Start();
}
