/// <summary>
/// Execute a command and wait for a response, blocking main calling thread. Once response given return.
/// </summary>
/// <param name="Cmd">Command to be sent to the rcon server for the minecraft server to execute.</param>
/// <returns>If command is sent and a response given, the repsonse is removed from the response que an returned.</returns>
public async Task <string> ExecuteCmd(string Cmd)
{
var sw = new System.Diagnostics.Stopwatch();
var ts = TimeSpan.FromSeconds(5);
sw.Restart();
if (AbortTCP == true)
{
return("RCON_ABORTED");
}
RconPacket p;
StringBuilder sb = new StringBuilder();
TimeCheck tc = new TimeCheck();
QueCommand(Cmd);
while (Count == 0)
{
await Task.Delay(100);
if (AbortTCP == true)
{
break;
}
if (sw.Elapsed > ts)
{
break;
}
}
while (Count > 0)
{
p = Dequeue();
sb.Append(p.Response);
if (AbortTCP == true)
{
break;
}
}
return(sb.ToString());
}
/// <summary>
/// Start the asynchronous communication process.
/// </summary>
/// <returns>True of successfully started, otherwise false.</returns>
public bool StartComms()
{
if (bgCommThread != null)
{
if (bgCommThread.IsAlive)
{
StopComms();
}
}
bgCommThread = null;
TimeCheck tc;
tc = new TimeCheck(10000);
bgCommThread = new Thread(ConnectAndProcess)
{
IsBackground = true
};
StateTCP = TCPState.IDLE;
StateRCon = RConState.IDLE;
bgCommThread.Start();
while (tc.Expired == false)
{
if (StateTCP == TCPState.CONNECTED)
{
if (StateRCon == RConState.READY)
{
return(true);
}
}
if (StateTCP == TCPState.ABORTED)
{
break;
}
}
return(false);
}
public async Task <string> ExecuteCmdAsync(string cmd)
{
if (AbortTCP == true)
{
return("RCON_ABORTED");
}
RconPacket p;
StringBuilder sb = new StringBuilder();
TimeCheck tc = new TimeCheck();
QueCommand(cmd);
while (Count == 0)
{
await Task.Delay(100);
if (AbortTCP == true)
{
break;
}
if (tc.Expired == true)
{
break;
}
}
while (Count > 0)
{
p = Dequeue();
sb.Append(p.Response);
if (AbortTCP == true)
{
break;
}
}
return(sb.ToString());
}
/// <summary>
/// Execute a command and wait for a response, blocking main calling thread. Once response given return.
/// </summary>
/// <param name="Cmd">Command to be sent to the rcon server for the minecraft server to execute.</param>
/// <returns>If command is sent and a response given, the repsonse is removed from the response que an returned.</returns>
public string ExecuteCmd(string Cmd)
{
if (AbortTCP == true)
{
return("RCON_ABORTED");
}
RconPacket p;
StringBuilder sb = new StringBuilder();
TimeCheck tc = new TimeCheck();
QueCommand(Cmd);
while (Count == 0)
{
Thread.Sleep(100);
if (AbortTCP == true)
{
break;
}
if (tc.Expired == true)
{
break;
}
}
while (Count > 0)
{
p = Dequeue();
sb.Append(p.Response);
if (AbortTCP == true)
{
break;
}
}
return(sb.ToString());
}
/// <summary>
/// Without knowing the safe heighth to be teleported to, a search is done.
/// Several command exchanges will occur with the server as fast as they can
/// which may require throttle controlls. If a safe space cannot be found, the player
/// is returned from the location found prior to the transfer. Any operators on the server will
/// receive RCON spam.
/// </summary>
/// <param name="r">The active RCon connection.</param>
/// <param name="sb">Output cache from RCon interaction, html encoded.</param>
/// <param name="player">Player name on the server, must be logged in.</param>
/// <param name="x">X axis</param>
/// <param name="y">Y axis</param>
/// <param name="z">Z axis</param>
public void TeleportSafeSearch(TCPRcon r, StringBuilder sb, String player, Int32 x, Int32 y, Int32 z)
{
if (isbusy == true)
{
sb.AppendFormat(@"<br/>{0} Teleporter busy, try again in a bit...", DateTime.Now);
return;
}
else
{
isbusy = true;
}
if (r.IsReadyForCommands)
{
try
{
string resp = "";
bool safeTp = false;
r.ExecuteCmd("tell {0} To lands unknown you go!!!", player);
r.ExecuteCmd("gamemode sp {0}", player);
r.ExecuteCmd("tp {3} {0} {1} {2}", x, y, z, player);
sb.AppendFormat(@"<br/>{0} Initiated TP sequence for {1}. Waiting for chunk loads", DateTime.Now, player);
TimeCheck tchk = new TimeCheck(8000);
while (tchk.Expired == false)
{
resp = r.ExecuteCmd(@"testforblock {0} {1} {2} minecraft:air", x, y, z);
if (!resp.Contains("Cannot test"))
{
break;
}
Thread.Sleep(1000);
}
if (!resp.Contains("Successfully") &&
r.ExecuteCmd("testforblock {0} {1} {2} minecraft:air", x, y + 1, z).Contains("Successfully") &&
!r.ExecuteCmd("testforblock {0} {1} {2} minecraft:air", x, y - 1, z).Contains("Successfully") &&
!r.ExecuteCmd("testforblock {0} {1} {2} minecraft:lava", x, y - 1, z).Contains("Successfully"))
{
sb.AppendFormat(@"<br/>{0} Found safe landing at {1} {3} {2}", DateTime.Now, x, z, y);
safeTp = true;
}
else
{
sb.AppendFormat(@"<br/>{0} Scanning for safe landing", DateTime.Now);
r.ExecuteCmd("tell {0} Looking for safe tp landing site...", player);
for (Int32 yy = 255; yy > 1; yy = yy - 15)
{
if (!r.ExecuteCmd("testforblock {0} {1} {2} minecraft:air", x, yy, z).Contains("Successfully") || yy < 30)
{
for (Int32 ys = yy + 15; ys > 1; ys--)
{
if (!r.ExecuteCmd("testforblock {0} {1} {2} minecraft:air", x, ys, z).Contains("Successfully") &&
!r.ExecuteCmd("testforblock {0} {1} {2} minecraft:lava", x, ys, z).Contains("Successfully"))
{
if (r.ExecuteCmd("testforblock {0} {1} {2} minecraft:air", x, ys + 1, z).Contains("Successfully") &&
r.ExecuteCmd("testforblock {0} {1} {2} minecraft:air", x, ys + 2, z).Contains("Successfully"))
{
r.ExecuteCmd("tp {3} {0} {1} {2}", x, ys + 1, z, player);
sb.AppendFormat(@"<br/>{0} Found safe landing at {1} {3} {2}", DateTime.Now, x, z, ys + 1);
safeTp = true;
break;
}
}
}
}
if (safeTp)
{
break;
}
}
}
if (safeTp == false)
{
sb.AppendFormat(@"<br/>{0} No safe landing found, return to nexus", DateTime.Now);
r.ExecuteCmd("tell {0} No safe tp found, returned to nexus", player);
r.ExecuteCmd("tp {0} 0 65 0", player);
r.ExecuteCmd("gamemode s {0}", player);
}
else
{
r.ExecuteCmd("tell {0} Welcome to your new adventure...", player);
r.ExecuteCmd("gamemode s {0}", player);
}
}
catch (Exception)
{
sb.AppendFormat(@"<br/>{0} Unexpected error occured in processing safe teleport", DateTime.Now);
}
}
isbusy = false;
}
private void Comms(TcpClient cli)
{
TimeCheck tc = new TimeCheck();
Int32 dT = 200;
cli.SendTimeout = 5000;
cli.ReceiveTimeout = 20000;
try
{
if (cli.Connected == false) //Not connected, shut it down...
{
StateRCon = RConState.NETWORK_FAIL;
StateTCP = TCPState.ABORTED;
AbortTCP = true;
}
tc.Reset(dT);
while (AbortTCP == false)
{
do
{
if (cli.Client.Poll(0, SelectMode.SelectRead))
{
byte[] buff = new byte[1];
if (cli.Client.Receive(buff, SocketFlags.Peek) == 0)
{
//client seems to be closed - lets close it
StateTCP = TCPState.CLOSED;
StateRCon = RConState.NETWORK_FAIL;
AbortTCP = true;
break;
}
}
if (cli.Available > 0)
{
RconPacket resp = new RconPacket();
resp.ReadFromNetworkSteam(cli.GetStream());
if (resp.IsBadPacket == true)
{
StateTCP = TCPState.ABORTED;
StateRCon = RConState.NETWORK_FAIL;
AbortTCP = true;
break;
}
if (Count > 1500)
{
StateRCon = RConState.IDLE;
StateTCP = TCPState.ABORTED;
AbortTCP = true;
break;
}
else
{
Enqueue(resp);
StateRCon = RConState.READY;
}
if (tc.Expired == false)
{
tc.Reset(dT);
}
}
Thread.Sleep(1);
} while (tc.Expired == false || cli.Available > 0);
if (AbortTCP == true)
{
break;
}
if (cmdQue.Count > 0)
{
RconPacket Cmd = cmdQue.Dequeue();
Cmd.SendToNetworkStream(cli.GetStream());
tc.Reset(dT);
}
Thread.Sleep(1);
}
}
catch (Exception ee)
{
AbortTCP = true;
var sb = new StringBuilder();
var ex = ee;
do
{
sb.AppendLine(ex.Message);
ex = ee.InnerException;
} while (ex != null);
LastTCPError = sb.ToString();
StateTCP = TCPState.ABORTED;
StateRCon = RConState.NETWORK_FAIL;
}
if (cli.Connected)
{
cli.Close();
}
}
