/// <summary>
/// Constructor of a DCC Chat for a Incoming DCC Chat Request
/// </summary>
/// <param name="irc">IrcFeature Class</param>
/// <param name="externalIpAdress">Our externally reachable IP Adress</param>
/// <param name="e">The Ctcp Event which initiated this constructor</param>
internal DccChat(IrcFeatures irc, IPAddress externalIpAdress, CtcpEventArgs e)
{
Irc = irc;
ExternalIPAdress = externalIpAdress;
User = e.Data.Nick;
if (e.Data.MessageArray.Length > 4)
{
bool okIP = Int64.TryParse(e.Data.MessageArray[3], out long ip);
bool okPo = Int32.TryParse(FilterMarker(e.Data.MessageArray[4]), out int port); // port 0 = passive
if ((e.Data.MessageArray[2] == "chat") && okIP && okPo)
{
RemoteEndPoint = new IPEndPoint(IPAddress.Parse(DccIntToHost(ip)), port);
if (e.Data.MessageArray.Length > 5 && e.Data.MessageArray[5] != "T")
{
AcceptRequest(); // Since we initated the Request, we accept DCC
return; // No OnDccChatRequestEvent Event! (we know that we want a connection)
}
DccChatRequestEvent(new DccEventArgs(this));
return;
}
else
{
irc.SendMessage(SendType.CtcpReply, e.Data.Nick, "ERRMSG DCC Chat Parameter Error");
}
}
else
{
irc.SendMessage(SendType.CtcpReply, e.Data.Nick, "ERRMSG DCC Chat not enough parameters");
}
isValid = false;
}
internal DccSend(IrcFeatures irc, IPAddress externalIpAdress, CtcpEventArgs e)
{
/* Remote Request */
Irc = irc;
_DirectionUp = false;
User = e.Data.Nick;
if (e.Data.MessageArray.Length > 4)
{
long filesize = 0;
if (e.Data.MessageArray.Length > 5)
{
bool okFs = Int64.TryParse(FilterMarker(e.Data.MessageArray[5]), out filesize);
_Filesize = filesize;
_Filename = e.Data.MessageArray[2].Trim('"');
}
if (Int64.TryParse(e.Data.MessageArray[3], out long ip) && Int32.TryParse(e.Data.MessageArray[4], out int port)) // port 0 = passive
{
RemoteEndPoint = new IPEndPoint(IPAddress.Parse(DccIntToHost(ip)), port);
DccSendRequestEvent(new DccSendRequestEventArgs(this, e.Data.MessageArray[2], filesize));
return;
}
irc.SendMessage(SendType.CtcpReply, e.Data.Nick, "ERRMSG DCC Send Parameter Error");
}
else
{
irc.SendMessage(SendType.CtcpReply, e.Data.Nick, "ERRMSG DCC Send not enough parameters");
}
}
/// <summary>
/// Constructor of DCC CHat for local DCC Chat Request to a certain user.
/// </summary>
/// <param name="irc">IrcFeature Class</param>
/// <param name="user">Chat Destination (channels are no valid targets)</param>
/// <param name="externalIpAdress">Our externally reachable IP Adress (can be anything if passive)</param>
/// <param name="passive">if you have no reachable ports!</param>
/// <param name="priority">Non DCC Message Priority</param>
internal DccChat(IrcFeatures irc, string user, IPAddress externalIpAdress, bool passive, Priority priority)
{
Irc = irc;
ExternalIPAdress = externalIpAdress;
User = user;
if (passive)
{
irc.SendMessage(SendType.CtcpRequest, user, "DCC CHAT chat " + HostToDccInt(externalIpAdress).ToString() + " 0 " + SessionId, priority);
Disconnect();
}
else
{
DccServer = new TcpListener(new IPEndPoint(IPAddress.Any, 0));
DccServer.Start();
LocalEndPoint = (IPEndPoint)DccServer.LocalEndpoint;
irc.SendMessage(SendType.CtcpRequest, user, "DCC CHAT chat " + HostToDccInt(externalIpAdress).ToString() + " " + LocalEndPoint.Port, priority);
}
}
internal DccSend(IrcFeatures irc, string user, IPAddress externalIpAdress, Stream file, string filename, long filesize, DccSpeed speed, bool passive, Priority priority)
{
Irc = irc;
_DirectionUp = true;
_File = file;
_Filesize = filesize;
_Filename = filename;
_Speed = speed;
User = user;
if (passive)
{
irc.SendMessage(SendType.CtcpRequest, user, "DCC SEND \"" + filename + "\" " + HostToDccInt(externalIpAdress).ToString() + " 0 " + filesize + " " + SessionId, priority);
}
else
{
DccServer = new TcpListener(new IPEndPoint(IPAddress.Any, 0));
DccServer.Start();
LocalEndPoint = (IPEndPoint)DccServer.LocalEndpoint;
irc.SendMessage(SendType.CtcpRequest, user, "DCC SEND \"" + filename + "\" " + HostToDccInt(externalIpAdress).ToString() + " " + LocalEndPoint.Port + " " + filesize, priority);
}
}