2 * InspIRCd -- Internet Relay Chat Daemon
4 * Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
5 * Copyright (C) 2007-2008 Robin Burchell <robin+git@viroteck.net>
6 * Copyright (C) 2007 Craig Edwards <craigedwards@brainbox.cc>
7 * Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
9 * This file is part of InspIRCd. InspIRCd is free software: you can
10 * redistribute it and/or modify it under the terms of the GNU General Public
11 * License as published by the Free Software Foundation, version 2.
13 * This program is distributed in the hope that it will be useful, but WITHOUT
14 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
15 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
18 * You should have received a copy of the GNU General Public License
19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
27 #include "modules/spanningtree.h"
29 #include "treeserver.h"
31 #include "treesocket.h"
34 /** Because most of the I/O gubbins are encapsulated within
35 * BufferedSocket, we just call the superclass constructor for
36 * most of the action, and append a few of our own values
39 TreeSocket::TreeSocket(Link* link, Autoconnect* myac, const std::string& ipaddr)
40 : linkID(assign(link->Name)), LinkState(CONNECTING), MyRoot(NULL), proto_version(0)
41 , burstsent(false), age(ServerInstance->Time())
43 capab = new CapabData;
46 capab->capab_phase = 0;
48 DoConnect(ipaddr, link->Port, link->Timeout, link->Bind);
49 Utils->timeoutlist[this] = std::pair<std::string, int>(linkID, link->Timeout);
53 /** When a listening socket gives us a new file descriptor,
54 * we must associate it with a socket without creating a new
55 * connection. This constructor is used for this purpose.
57 TreeSocket::TreeSocket(int newfd, ListenSocket* via, irc::sockets::sockaddrs* client, irc::sockets::sockaddrs* server)
58 : BufferedSocket(newfd)
59 , linkID("inbound from " + client->addr()), LinkState(WAIT_AUTH_1), MyRoot(NULL), proto_version(0)
60 , burstsent(false), age(ServerInstance->Time())
62 capab = new CapabData;
63 capab->capab_phase = 0;
66 via->iohookprov->OnAccept(this, client, server);
69 Utils->timeoutlist[this] = std::pair<std::string, int>(linkID, 30);
72 ServerState TreeSocket::GetLinkState()
74 return this->LinkState;
77 void TreeSocket::CleanNegotiationInfo()
79 // connect is good, reset the autoconnect block (if used)
81 capab->ac->position = -1;
86 CullResult TreeSocket::cull()
88 Utils->timeoutlist.erase(this);
89 if (capab && capab->ac)
90 Utils->Creator->ConnectServer(capab->ac, false);
91 return this->BufferedSocket::cull();
94 TreeSocket::~TreeSocket()
99 /** When an outbound connection finishes connecting, we receive
100 * this event, and must send our SERVER string to the other
101 * side. If the other side is happy, as outlined in the server
102 * to server docs on the inspircd.org site, the other side
103 * will then send back its own server string.
105 void TreeSocket::OnConnected()
107 if (this->LinkState == CONNECTING)
109 if (!capab->link->Hook.empty())
111 ServiceProvider* prov = ServerInstance->Modules->FindService(SERVICE_IOHOOK, capab->link->Hook);
114 SetError("Could not find hook '" + capab->link->Hook + "' for connection to " + linkID);
117 static_cast<IOHookProvider*>(prov)->OnConnect(this);
120 ServerInstance->SNO->WriteGlobalSno('l', "Connection to \2%s\2[%s] started.", linkID.c_str(),
121 (capab->link->HiddenFromStats ? "<hidden>" : capab->link->IPAddr.c_str()));
122 this->SendCapabilities(1);
126 void TreeSocket::OnError(BufferedSocketError e)
128 ServerInstance->SNO->WriteGlobalSno('l', "Connection to '\002%s\002' failed with error: %s",
129 linkID.c_str(), getError().c_str());
134 void TreeSocket::SendError(const std::string &errormessage)
136 WriteLine("ERROR :"+errormessage);
139 SetError(errormessage);
142 CmdResult CommandSQuit::HandleServer(TreeServer* server, std::vector<std::string>& params)
144 TreeServer* quitting = Utils->FindServer(params[0]);
147 ServerInstance->Logs->Log(MODNAME, LOG_DEFAULT, "Squit from unknown server");
151 CmdResult ret = CMD_SUCCESS;
152 if (quitting == server)
155 server = server->GetParent();
157 else if (quitting->GetParent() != server)
158 throw ProtocolException("Attempted to SQUIT a non-directly connected server or the parent");
160 server->SQuitChild(quitting, params[1]);
162 // XXX: Return CMD_FAILURE when servers SQUIT themselves (i.e. :00S SQUIT 00S :Shutting down)
163 // to stop this message from being forwarded.
164 // The squit logic generates a SQUIT message with our sid as the source and sends it to the
165 // remaining servers.
169 /** This function is called when we receive data from a remote
172 void TreeSocket::OnDataReady()
174 Utils->Creator->loopCall = true;
176 while (GetNextLine(line))
178 std::string::size_type rline = line.find('\r');
179 if (rline != std::string::npos)
180 line = line.substr(0,rline);
181 if (line.find('\0') != std::string::npos)
183 SendError("Read null character from socket");
191 catch (CoreException& ex)
193 ServerInstance->Logs->Log(MODNAME, LOG_DEFAULT, "Error while processing: " + line);
194 ServerInstance->Logs->Log(MODNAME, LOG_DEFAULT, ex.GetReason());
195 SendError(ex.GetReason() + " - check the log file for details");
198 if (!getError().empty())
201 if (LinkState != CONNECTED && recvq.length() > 4096)
202 SendError("RecvQ overrun (line too long)");
203 Utils->Creator->loopCall = false;