public override string HandleCommand(IRCCommandBase command, Session session)
{
if (command is NICKCommand)
{
NICKCommand nickCommand = (NICKCommand)command;
if (nickCommand.NickName == null)
{
return(Errors.GetErrorResponse(ErrorCode.ERR_NONICKNAMEGIVEN, null));
}
else
{
foreach (Session S in ServerBackend.Instance.ClientSessions)
{
if (S.User != null)
{
if (S.User.Nickname == nickCommand.NickName)
{
// if (S.Socket != session.Socket)
return(Errors.GetErrorResponse(ErrorCode.ERR_NICKNAMEINUSE, nickCommand.NickName));
}
}
}
}
foreach (User user in ServerBackend.Instance.Users)
{
if (user == session.User)
{
if (user.Realname != null)
{
user.Nickname = nickCommand.NickName;
session.User.Nickname = nickCommand.NickName;
session.ConnectionState = ConnectionState.Registered;
return("OK");
}
else
{
user.Nickname = nickCommand.NickName;
session.User.Nickname = nickCommand.NickName;
session.ConnectionState = ConnectionState.NotRegistered;
return("OK");
}
}
}
if (session.User == null)
{
session.User = new User();
session.User.Nickname = nickCommand.NickName;
ServerBackend.Instance.Users.Add(session.User);
}
return("OK");
}
else
{
throw new ArgumentException();
}
}
public override string HandleCommand(IRCCommandBase command, Session session)
{
if (command is PRIVMSGCommand)
{
if (session.ConnectionState == ConnectionState.NotRegistered)
{
return("Unregistered user");
}
PRIVMSGCommand privmsgCommand = (PRIVMSGCommand)command;
if (privmsgCommand.Targets.Count == 0)
{
return(Errors.GetErrorResponse(ErrorCode.ERR_NORECIPIENT, "privmsg"));
}
if (privmsgCommand.Message == null)
{
return(Errors.GetErrorResponse(ErrorCode.ERR_NOTEXTTOSEND, null));
}
bool found = false;
for (int i = 0; i < privmsgCommand.Targets.Count; i++)
{
foreach (Session s in ServerBackend.Instance.ClientSessions)
{
if (s.User.Nickname == privmsgCommand.Targets[i])
{
if (s.ConnectionState == ConnectionState.Registered)
{
found = true;
}
break;
}
}
if (!found)
{
return(Errors.GetErrorResponse(ErrorCode.ERR_NOSUCHNICK, privmsgCommand.Targets[i]));
}
found = false;
}
for (int i = 0; i < privmsgCommand.Targets.Count; i++)
{
foreach (Session s in ServerBackend.Instance.ClientSessions)
{
if (s.User.Nickname == privmsgCommand.Targets[i])
{
s.Socket.Send(Encoding.ASCII.GetBytes(":" + session.User.Nickname + " PRIVMSG :" + privmsgCommand.Message));
}
}
}
return("OK");
}
else
{
throw new ArgumentException();
}
}
public override string HandleCommand(IRCCommandBase command, Session session)
{
if (command is QUITCommand)
{
QUITCommand quitCommand = (QUITCommand)command;
ServerBackend.Instance.Users.Remove(session.User);
session.ConnectionState = ConnectionState.Destroyed;
ServerBackend.Instance.ClientSessions.Remove(session);
return("OK");
}
else
{
throw new ArgumentException();
}
}
public abstract string HandleCommand(IRCCommandBase command, Session session);
public override string HandleCommand(IRCCommandBase command, Session session)
{
if (command is USERCommand)
{
USERCommand userCommand = (USERCommand)command;
if (userCommand.UserName == null || userCommand.HostName == null || userCommand.ServerName == null || userCommand.RealName == null)
{
return(Errors.GetErrorResponse(ErrorCode.ERR_NEEDMOREPARAMS, "User"));
}
if (session.User != null)
{
if (session.User.Username != null)
{
return(Errors.GetErrorResponse(ErrorCode.ERR_ALREADYREGISTERED, null));
}
}
//foreach (User u in ServerBackend.Instance.Users)
//{
// if (u.Username == userCommand.UserName)
// {
// return Errors.GetErrorResponse(ErrorCode.ERR_ALREADYREGISTERED, null);
// }
//}
foreach (User user in ServerBackend.Instance.Users)
{
if (user == session.User)
{
if (user.Nickname != null)
{
session.User.Username = userCommand.UserName;
session.User.Hostname = userCommand.HostName;
session.User.Realname = userCommand.RealName;
session.ConnectionState = ConnectionState.Registered;
return("OK");
}
else
{
session.User.Username = userCommand.UserName;
session.User.Hostname = userCommand.HostName;
session.User.Realname = userCommand.RealName;
session.ConnectionState = ConnectionState.NotRegistered;
return("OK");
}
}
}
if (session.User == null)
{
session.User = new User();
session.User.Username = userCommand.UserName;
session.User.Hostname = userCommand.HostName;
session.User.Realname = userCommand.RealName;
session.ConnectionState = ConnectionState.NotRegistered;
ServerBackend.Instance.Users.Add(session.User);
}
return("OK");
}
else
{
throw new ArgumentException();
}
}
