private void PingServer(ServerPinger pinger)
{
string error = "";
ServerPingData ping = pinger.PingServer(Data.IP, Data.Port, out error);
Ping = ping;
//If no error
if (error == string.Empty)
{
//Set the controls with the recieved data
Stats.Text = ping.Online + "/" + ping.MaxOnline;
Motd.Text = ping.Description;
Stats.TextColor = onlineColor;
}
else
{
//Error text
Stats.Text = "X";
Stats.TextColor = offlineColor;
Motd.Text = error;
}
Stats.Left = (ClientWidth - (int)Manager.Skin.Fonts["Default14"].Resource.MeasureString(Stats.Text).X) - 4 - 32;
}
private void PingServer(ServerPinger pinger)
{
string error = "";
ServerPingData ping = pinger.PingServer(Data.IP, Data.Port, out error);
Ping = ping;
//If no error
if (error == string.Empty)
{
//Set the controls with the recieved data
Stats.Text = ping.Online + "/" + ping.MaxOnline;
Motd.Text = ping.Description;
Stats.TextColor = onlineColor;
}
else
{
//Error text
Stats.Text = "X";
Stats.TextColor = offlineColor;
Motd.Text = error;
}
Stats.Left = (ClientWidth - (int)Manager.Skin.Fonts["Default14"].Resource.MeasureString(Stats.Text).X) - 4 - 32;
}
public ServerPingData PingServer(string host, int port, out string error)
{
ServerPingData pingData = new ServerPingData();
error = string.Empty;
//Attempt to contact the server
try
{
using (TcpClient client = new TcpClient())
{
IAsyncResult ar = client.BeginConnect(host, port, null, null);
System.Threading.WaitHandle wh = ar.AsyncWaitHandle;
try
{
if (!ar.AsyncWaitHandle.WaitOne(TimeSpan.FromSeconds(Common.GlobalSettings.ConnectTimeout), false))
{
client.Close();
error = "Offline (Connection Timeout)";
pingData.Error = true;
return pingData;
}
client.EndConnect(ar);
}
finally
{
wh.Close();
}
//Send a single message notifying the server we would like it's stats (0 is the ping request ID)
data = new byte[1] { 0x00 };
//Get a client stream for reading and writing
stream = client.GetStream();
//Send the message to the connected TcpServer.
stream.Write(data, 0, data.Length);
int size = (stream.ReadByte() << 8) + stream.ReadByte();
Debug.WriteLine("ServerPinger Sent: " + data.ToString());
//Buffer to store the response bytes.
data = new byte[size];
//Read the first batch of the TcpServer response bytes
int bytes = stream.Read(data, 0, data.Length);
using (MemoryStream ms = new MemoryStream(data))
{
using (StreamReader reader = new StreamReader(ms))
{
pingData.Online = (int)byte.Parse(reader.ReadLine());
pingData.MaxOnline = (int)byte.Parse(reader.ReadLine());
pingData.Description = reader.ReadLine();
}
}
client.Close();
}
}
catch (Exception e)
{
error = e.Message;
pingData.Error = true;
Debug.WriteLine(e.ToString());
if (e is SocketException)
{
//Provide some better error messages
int id = (e as SocketException).ErrorCode;
if (id == 10061) //No connection could be made because the target machine actively refused it
error = "Offline (Target Online, Server Not Accessible)";
else if (id == 10060) //A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond
error = "Offline (Connection Timeout)";
}
}
finally
{
if (client != null)
client.Close();
}
return pingData;
}
/// <summary>
/// Listens for ping requests, and sends back statistics
/// </summary>
private void Listen()
{
try
{
server = new TcpListener(IPAddress.Any, port); //Create a TcpListener to listen for requests
server.Start(); //Start listening for client requests.
byte[] bytes = new byte[1]; //Single byte buffer for reading data (should not exceed 1 byte)
//Enter the listening loop.
while (true)
{
client = server.AcceptTcpClient(); //Wait and accept requests
stream = client.GetStream(); //Get a stream object for reading and writing
int i;
//Loop to receive all the data sent by the client
while ((i = stream.Read(bytes, 0, bytes.Length)) != 0)
{
Debug.WriteLine(String.Format("PingListener: Data Received: {0}", bytes.ToString()));
//If ping request recieved, send back the data (0 is the ping packet id)
if ((byte)bytes[0] == 0x00)
{
Debug.WriteLine("PingListener: Data validated, query request recieved.");
//Get server stats to send back
ServerPingData pingData = Server.NetManager.GetQuery();
//Write the data to a steam and send
using (MemoryStream ms = new MemoryStream())
{
using (StreamWriter writer = new StreamWriter(ms))
{
writer.WriteLine((byte)pingData.Online);
writer.WriteLine((byte)pingData.MaxOnline);
writer.WriteLine(pingData.Description);
}
byte[] msg = ms.ToArray();
//(stream.ReadByte() << 8) + stream.ReadByte();
if (msg.Length > 65535)
{
throw new OverflowException("Please make your description smaller");
}
// Writes the size of the message, up to 65535
stream.WriteByte((byte)(msg.Length >> 8));
stream.WriteByte((byte)(msg.Length % 255));
stream.Write(msg, 0, msg.Length);
}
}
}
// Shutdown and end connection
client.Close();
}
}
catch (Exception e)
{
Log.WriteLine(LogType.Error, "PingListener Error: \"{0}\"", e.Message);
}
finally
{
server.Stop();
this.Start();
}
}
public ServerPingData PingServer(string host, int port, out string error)
{
ServerPingData pingData = new ServerPingData();
error = string.Empty;
//Attempt to contact the server
try
{
using (TcpClient client = new TcpClient())
{
IAsyncResult ar = client.BeginConnect(host, port, null, null);
System.Threading.WaitHandle wh = ar.AsyncWaitHandle;
try
{
if (!ar.AsyncWaitHandle.WaitOne(TimeSpan.FromSeconds(Common.GlobalSettings.ConnectTimeout), false))
{
client.Close();
error = "Offline (Connection Timeout)";
pingData.Error = true;
return(pingData);
}
client.EndConnect(ar);
}
finally
{
wh.Close();
}
//Send a single message notifying the server we would like it's stats (0 is the ping request ID)
data = new byte[1] {
0x00
};
//Get a client stream for reading and writing
stream = client.GetStream();
//Send the message to the connected TcpServer.
stream.Write(data, 0, data.Length);
int size = (stream.ReadByte() << 8) + stream.ReadByte();
Debug.WriteLine("ServerPinger Sent: " + data.ToString());
//Buffer to store the response bytes.
data = new byte[size];
//Read the first batch of the TcpServer response bytes
int bytes = stream.Read(data, 0, data.Length);
using (MemoryStream ms = new MemoryStream(data))
{
using (StreamReader reader = new StreamReader(ms))
{
pingData.Online = (int)byte.Parse(reader.ReadLine());
pingData.MaxOnline = (int)byte.Parse(reader.ReadLine());
pingData.Description = reader.ReadLine();
}
}
client.Close();
}
}
catch (Exception e)
{
error = e.Message;
pingData.Error = true;
Debug.WriteLine(e.ToString());
if (e is SocketException)
{
//Provide some better error messages
int id = (e as SocketException).ErrorCode;
if (id == 10061) //No connection could be made because the target machine actively refused it
{
error = "Offline (Target Online, Server Not Accessible)";
}
else if (id == 10060) //A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond
{
error = "Offline (Connection Timeout)";
}
}
}
finally
{
if (client != null)
{
client.Close();
}
}
return(pingData);
}
