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/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2013 Attila Molnar <attilamolnar@hush.com>
*
* This file is part of InspIRCd. InspIRCd is free software: you can
* redistribute it and/or modify it under the terms of the GNU General Public
* License as published by the Free Software Foundation, version 2.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
class StreamSocket;
class IOHookProvider : public ServiceProvider
{
public:
enum Type
{
IOH_UNKNOWN,
IOH_SSL
};
const Type type;
IOHookProvider(Module* mod, const std::string& Name, Type hooktype = IOH_UNKNOWN)
: ServiceProvider(mod, Name, SERVICE_IOHOOK), type(hooktype) { }
/** Called immediately after a connection is accepted. This is intended for raw socket
* processing (e.g. modules which wrap the tcp connection within another library) and provides
* no information relating to a user record as the connection has not been assigned yet.
* @param sock The socket in question
* @param client The client IP address and port
* @param server The server IP address and port
*/
virtual void OnAccept(StreamSocket* sock, irc::sockets::sockaddrs* client, irc::sockets::sockaddrs* server) = 0;
/** Called immediately upon connection of an outbound BufferedSocket which has been hooked
* by a module.
* @param sock The socket in question
*/
virtual void OnConnect(StreamSocket* sock) = 0;
};
class IOHook : public classbase
{
public:
/** The IOHookProvider for this hook, contains information about the hook,
* such as the module providing it and the hook type.
*/
IOHookProvider* const prov;
IOHook(IOHookProvider* provider)
: prov(provider) { }
/**
* Called when a hooked stream has data to write, or when the socket
* engine returns it as writable
* @param sock The socket in question
* @return 1 if the sendq has been completely emptied, 0 if there is
* still data to send, and -1 if there was an error
*/
virtual int OnStreamSocketWrite(StreamSocket* sock) = 0;
/** Called immediately before any socket is closed. When this event is called, shutdown()
* has not yet been called on the socket.
* @param sock The socket in question
*/
virtual void OnStreamSocketClose(StreamSocket* sock) = 0;
/**
* Called when the stream socket has data to read
* @param sock The socket that is ready
* @param recvq The receive queue that new data should be appended to
* @return 1 if new data has been read, 0 if no new data is ready (but the
* socket is still connected), -1 if there was an error or close
*/
virtual int OnStreamSocketRead(StreamSocket* sock, std::string& recvq) = 0;
};
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