/// <summary>
/// Пытается произвести рекурсивное подключение от компьютера к компьютеру, пока не установит цепочку связей до конечного компьютера
/// </summary>
/// <param name="con">Предыдущий компьютер в сети</param>
/// <param name="targetHost">Целевой компьютер</param>
/// <param name="mat">Ид раздачи</param>
/// <returns>Сокет, подключенный к следующему компьютеру в цепочке, либо null, если маршрут не удалось установить</returns>
Socket TryConnect(Connection con, out Client targetHost, int mat)
{
NetworkStream nStream = new NetworkStream(con.Socket);
byte[] buf = new byte[6];
nStream.Read(buf, 0, 6);
targetHost = new Client();
targetHost.Deserialize(buf);
foreach (Client c in targets)
{
if (c == targetHost)
{
nStream.WriteByte((byte)(IDT_Protocol.TerminateTransaction));
return(null);
}
}
Socket sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP);
try
{
sock.Connect(targetHost.ip, targetHost.port);
sock.Send(new byte[] { (byte)C_C_Protocol.Connect });
byte[] receive = new byte[2];
sock.Receive(receive, 0, 1, SocketFlags.None);
sock.Receive(receive, 1, 1, SocketFlags.None);
if ((C_C_Protocol)receive[0] != C_C_Protocol.Connected || receive[1] == 0)
{
sock.Close(); throw new SocketException();
}
sock.Send(new byte[] { (byte)C_C_Protocol.IsMaterial });
byte[] temp = bc.GetBytes(mat);
sock.Send(temp);
sock.Receive(temp, 1, SocketFlags.None);
if (temp[0] != (byte)C_C_Protocol.MaterialResponse)
{
sock.Close(); throw new SocketException();
}
return(sock);
}
catch (SocketException)
{
foreach (Material m in ProgramMaterials.MaterialsArray)
{
foreach (Connection c in m.Connections)
{
IPAddress ip = ((IPEndPoint)c.Socket.RemoteEndPoint).Address;
short port = (short)((IPEndPoint)c.Socket.RemoteEndPoint).Port;
try { sock.Connect(ip, port); }
catch (Exception) { continue; }
return(Connect(targetHost, mat));
}
}
return(null);
}
}
private void ReadClients(string filename)
{
FileStream fs = new FileStream(filename, FileMode.Open);
Read:
while (fs.Length > fs.Position)
{
byte[] temp = new byte[6];
fs.Read(temp, 0, 6);
Client t = new Client();
t.Deserialize(temp);
IPAddress IP_Client = t.ip;
short Port_Client = t.port;
IPEndPoint ip;
for (int i = 0; i < connections.Count; i++)
{
ip = (IPEndPoint)(connections[i].Socket.RemoteEndPoint);
if (ip.Address.ToString() == IP_Client.ToString())
{
goto Read;
}
}
Socket socket_download = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP);
try
{
Connection con = new Connection();
con.Thread = new Thread(Download);
con.Thread.IsBackground = true;
con.Socket = socket_download;
con.Thread.Start(con);
socket_download.Connect(new IPEndPoint(IP_Client, Port_Client));
}
catch (SocketException)
{
/*if (Config.IDT_Enaibled)
* {
* Client cl = new Client(IP_Client, Port_Client);
* System.Threading.Thread th = new Thread(IDT_client);
* th.Start(cl);
* }*/
}
}
fs.Close();
}
/// <summary>
/// Пытается произвести рекурсивное подключение от компьютера к компьютеру, пока не установит цепочку связей до конечного компьютера
/// </summary>
/// <param name="con">Предыдущий компьютер в сети</param>
/// <param name="targetHost">Целевой компьютер</param>
/// <param name="mat">Ид раздачи</param>
/// <returns>Сокет, подключенный к следующему компьютеру в цепочке, либо null, если маршрут не удалось установить</returns>
Socket TryConnect(Connection con, out Client targetHost, int mat)
{
NetworkStream nStream = new NetworkStream(con.Socket);
byte[] buf = new byte[6];
nStream.Read(buf, 0, 6);
targetHost = new Client();
targetHost.Deserialize(buf);
foreach (Client c in targets)
{
if (c == targetHost)
{
nStream.WriteByte((byte)(IDT_Protocol.TerminateTransaction));
return null;
}
}
Socket sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP);
try
{
sock.Connect(targetHost.ip, targetHost.port);
sock.Send(new byte[] { (byte)C_C_Protocol.Connect});
byte[] receive = new byte[2];
sock.Receive(receive, 0, 1, SocketFlags.None);
sock.Receive(receive, 1, 1, SocketFlags.None);
if((C_C_Protocol) receive[0] != C_C_Protocol.Connected || receive[1] ==0)
{ sock.Close(); throw new SocketException(); }
sock.Send(new byte[] {(byte)C_C_Protocol.IsMaterial});
byte[] temp = bc.GetBytes(mat);
sock.Send(temp);
sock.Receive(temp, 1, SocketFlags.None);
if (temp[0] != (byte)C_C_Protocol.MaterialResponse)
{ sock.Close(); throw new SocketException(); }
return sock;
}
catch (SocketException)
{
foreach (Material m in ProgramMaterials.MaterialsArray)
{
foreach (Connection c in m.Connections)
{
IPAddress ip = ((IPEndPoint)c.Socket.RemoteEndPoint).Address;
short port = (short)((IPEndPoint)c.Socket.RemoteEndPoint).Port;
try { sock.Connect(ip, port); }
catch (Exception) { continue; }
return Connect(targetHost, mat);
}
}
return null;
}
}
private void ReadClients(string filename)
{
FileStream fs = new FileStream(filename, FileMode.Open);
Read:
while (fs.Length > fs.Position)
{
byte[] temp = new byte[6];
fs.Read(temp, 0, 6);
Client t = new Client();
t.Deserialize(temp);
IPAddress IP_Client = t.ip;
short Port_Client = t.port;
IPEndPoint ip;
for (int i = 0; i < connections.Count; i++)
{
ip = (IPEndPoint)(connections[i].Socket.RemoteEndPoint);
if (ip.Address.ToString() == IP_Client.ToString())
goto Read;
}
Socket socket_download = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP);
try
{
Connection con = new Connection();
con.Thread = new Thread(Download);
con.Thread.IsBackground = true;
con.Socket = socket_download;
con.Thread.Start(con);
socket_download.Connect(new IPEndPoint(IP_Client, Port_Client));
}
catch (SocketException)
{
/*if (Config.IDT_Enaibled)
{
Client cl = new Client(IP_Client, Port_Client);
System.Threading.Thread th = new Thread(IDT_client);
th.Start(cl);
}*/
}
}
fs.Close();
}
