public void SendUserMsg(string username, string message)
{
string msg = ProcessCodes.Message.ToString() + " " + message;
Users user = userList.Find(i => i.Name == username);
Admins admin = adminList.Find(i => i.Name == username);
if (user != null)
{
Socket socket = user.clientSocket;
byte[] data = Encoding.ASCII.GetBytes(msg);
socket.BeginSend(data, 0, data.Length, SocketFlags.None, new AsyncCallback(SendCallback), socket);
}
else if (admin != null)
{
Socket socket = admin.clientSocket;
byte[] data = Encoding.ASCII.GetBytes(msg);
socket.BeginSend(data, 0, data.Length, SocketFlags.None, new AsyncCallback(SendCallback), socket);
}
}
private void ReceiveCallback(IAsyncResult ar)
{
//better to initailize these outside the try catch to make them accessable throughout method
Socket socket = (Socket)ar.AsyncState;
ProcessCodes code;
string[] msg;
int received;
string text;
byte[] dataBuff;
//Everythings done in a try catch in case the client unexpectedly disconnects so it doesnt crash the server
try
{
received = socket.EndReceive(ar);
Users user = userList.Find(i => i.IP == socket.RemoteEndPoint.ToString());
Admins admin = adminList.Find(i => i.IP == socket.RemoteEndPoint.ToString());
dataBuff = new byte[received];
Array.Copy(g_buffer, dataBuff, received);
text = Encoding.ASCII.GetString(dataBuff);
msg = text.Split(' ');
if ((user != null) && (user.Name != null && user.Name != ""))
{
Log.Success("Received msg from " + user.Name);
sendAdminsLog("GREEN " + "Received msg from " + user.Name);
}
else if ((admin != null) && (admin.Name != null && admin.Name != "") && (msg[1] == "KICK" || msg[1] == "BAN" || msg[1] == "SENDMSG"))
{
Log.AdminConnect(admin.Name + " Issued a " + msg[1]);
sendAdminsLog("GREEN " + "Received msg from " + admin.Name);
}
}
//Everytime a user disconnects this is called
catch (SocketException)
{
int msgtype = 0;
string rep = "";
//creates a user object for regular users
Users user = userList.Find(i => i.IP == socket.RemoteEndPoint.ToString());
//creates an admin object for admin user
Admins admin = adminList.Find(i => i.IP == socket.RemoteEndPoint.ToString());
if (user != null && user.Name != null && user.Name != "")
{
//set user to logged off
Log.Warning(user.Name + " Has Forcefully Disconnected!");
msgtype = 1;
Login_Helper.UpdateUser(user.Name);
}
else if (admin != null && admin.Name != null && admin.Name != "")
{
//sets admin to log off
Log.Warning("ADMIN: " + admin.Name + " Has Forcefully Disconnected!");
msgtype = 3;
Login_Helper.UpdateUser(admin.Name);
}
else
{
Log.Error("Random Client Has Forcefully Disconnected! " + socket.RemoteEndPoint.ToString());
rep = socket.RemoteEndPoint.ToString();
msgtype = 2;
}
var ItemToRemove = userList.SingleOrDefault(i => i.IP == socket.RemoteEndPoint.ToString());
var AdminToRemove = adminList.SingleOrDefault(i => i.IP == socket.RemoteEndPoint.ToString());
socket.Close();
//clientSockets.Remove(socket);
if (ItemToRemove != null)
{
userList.Remove(ItemToRemove);
}
if (AdminToRemove != null)
{
adminList.Remove(AdminToRemove);
}
if (msgtype == 2)
{
sendAdminsLog("RED " + "Random Client Has Forcefully Disconnected! " + rep);
}
else if (msgtype == 1)
{
sendAdminsLog("YELLOW " + user.Name + " Has Forcefully Disconnected!");
}
else if (msgtype == 3)
{
sendAdminsLog("YELLOW " + admin.Name + " Has Forcefully Disconnected!");
}
return;
}
//incase the code given is not an actual code so we dont run into formatting problems and the server crashes
try
{
code = (ProcessCodes)UInt16.Parse(msg[0]);
}
catch (System.FormatException e)
{
var ItemToRemove = userList.SingleOrDefault(i => i.IP == socket.RemoteEndPoint.ToString());
var AdminToRemove = adminList.SingleOrDefault(i => i.IP == socket.RemoteEndPoint.ToString());
//socket.Close();
//clientSockets.Remove(socket);
if (ItemToRemove != null)
{
userList.Remove(ItemToRemove);
}
if (AdminToRemove != null)
{
adminList.Remove(AdminToRemove);
}
Log.Error("Error connecting user, possibly malicaious " + socket.RemoteEndPoint);
sendAdminsLog("RED " + "Error connecting user, possibly malicaious " + socket.RemoteEndPoint);
return;
}
switch (code)//first item is always code
{
case ProcessCodes.Login:
{
ErrorCodes tempCode = Login_Helper.doLogin(msg[1], msg[2]);
byte[] data = Encoding.ASCII.GetBytes(Convert.ToString(tempCode));
if (tempCode == ErrorCodes.Login_Success)
{
Log.Success(msg[1] + " Has Logged In!");
sendAdminsLog("GREEN " + msg[1] + " Has Logged In!");
if (Login_Helper.checkAdmin(msg[1]))
{
adminList.Add(new Admins(userList.Find(i => i.IP == socket.RemoteEndPoint.ToString()).IP, userList.Find(i => i.IP == socket.RemoteEndPoint.ToString()).clientSocket));
adminList.Find(i => i.IP == socket.RemoteEndPoint.ToString()).Name = msg[1];
var toRemove = userList.Single(i => i.IP == socket.RemoteEndPoint.ToString());
userList.Remove(toRemove);
}
else
{
userList.Find(i => i.IP == socket.RemoteEndPoint.ToString()).Name = msg[1];
}
IPEndPoint ipAdd = socket.RemoteEndPoint as IPEndPoint;
Login_Helper.UpdateUser(ipAdd.ToString(), msg[1], 1);
}
socket.BeginSend(data, 0, data.Length, SocketFlags.None, new AsyncCallback(SendCallback), socket);
socket.BeginReceive(g_buffer, 0, g_buffer.Length, SocketFlags.None, new AsyncCallback(ReceiveCallback), socket);
}
break;
case ProcessCodes.Version:
{
if (clientVersion.Equals(msg[1]))
{
Log.Success("Client versions matched, cleared for login");
sendAdminsLog("GREEN " + "Client versions matched, cleared for login");
byte[] data = Encoding.ASCII.GetBytes(Convert.ToString(ErrorCodes.Version_Success.ToString()));
socket.BeginSend(data, 0, data.Length, SocketFlags.None, new AsyncCallback(SendCallback), socket);
socket.BeginReceive(g_buffer, 0, g_buffer.Length, SocketFlags.None, new AsyncCallback(ReceiveCallback), socket);
}
else
{
Log.Warning("Client versions do match closing client");
sendAdminsLog("YELLOW " + "Client versions do match closing client");
byte[] data = Encoding.ASCII.GetBytes(Convert.ToString(ErrorCodes.Error.ToString()) + " " + clientVersion);
socket.BeginSend(data, 0, data.Length, SocketFlags.None, new AsyncCallback(SendCallback), socket);
socket.BeginReceive(g_buffer, 0, g_buffer.Length, SocketFlags.None, new AsyncCallback(ReceiveCallback), socket);
}
}
break;
case ProcessCodes.Command:
{
string message = "";
for (int i = 3; i < msg.Length; i++)
{
message += msg[i] + " ";
}
if (msg[1] == "KICK")
{
KickUser(msg[2], message);
socket.BeginReceive(g_buffer, 0, g_buffer.Length, SocketFlags.None, new AsyncCallback(ReceiveCallback), socket);
}
else if (msg[1] == "BAN")
{
BanUser(msg[2], message);
socket.BeginReceive(g_buffer, 0, g_buffer.Length, SocketFlags.None, new AsyncCallback(ReceiveCallback), socket);
}
else if (msg[1] == "SENDMSG")
{
SendUserMsg(msg[2], message);
socket.BeginReceive(g_buffer, 0, g_buffer.Length, SocketFlags.None, new AsyncCallback(ReceiveCallback), socket);
}
else if (msg[1] == "SENDMSGALL")
{
SendUserMsgAll(message);
socket.BeginReceive(g_buffer, 0, g_buffer.Length, SocketFlags.None, new AsyncCallback(ReceiveCallback), socket);
}
else if (msg[1] == "UPDATEUSERS")
{
sendUpdatedUsers();
socket.BeginReceive(g_buffer, 0, g_buffer.Length, SocketFlags.None, new AsyncCallback(ReceiveCallback), socket);
}
}
break;
default: { ProcessError(ar); } break;
}
}