2 * InspIRCd -- Internet Relay Chat Daemon
4 * Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
5 * Copyright (C) 2008 Dennis Friis <peavey@inspircd.org>
6 * Copyright (C) 2008 Robin Burchell <robin+git@viroteck.net>
7 * Copyright (C) 2008 Craig Edwards <craigedwards@brainbox.cc>
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/>.
29 class WriteCommonQuit : public User::ForEachNeighborHandler
34 void Execute(LocalUser* user) CXX11_OVERRIDE
36 user->Write(user->IsOper() ? operline : line);
40 WriteCommonQuit(User* user, const std::string& msg, const std::string& opermsg)
41 : line(":" + user->GetFullHost() + " QUIT :")
46 user->ForEachNeighbor(*this, false);
51 UserManager::UserManager()
53 , unregistered_count(0)
57 UserManager::~UserManager()
59 for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); ++i)
65 void UserManager::AddUser(int socket, ListenSocket* via, irc::sockets::sockaddrs* client, irc::sockets::sockaddrs* server)
67 // User constructor allocates a new UUID for the user and inserts it into the uuidlist
68 LocalUser* const New = new LocalUser(socket, client, server);
69 UserIOHandler* eh = &New->eh;
71 ServerInstance->Logs->Log("USERS", LOG_DEBUG, "New user fd: %d", socket);
73 this->unregistered_count++;
74 this->clientlist[New->nick] = New;
76 this->local_users.push_front(New);
78 if (!SocketEngine::AddFd(eh, FD_WANT_FAST_READ | FD_WANT_EDGE_WRITE))
80 ServerInstance->Logs->Log("USERS", LOG_DEBUG, "Internal error on new connection");
81 this->QuitUser(New, "Internal error handling connection");
85 // If this listener has an IO hook provider set then tell it about the connection
86 for (ListenSocket::IOHookProvList::iterator i = via->iohookprovs.begin(); i != via->iohookprovs.end(); ++i)
88 ListenSocket::IOHookProvRef& iohookprovref = *i;
92 iohookprovref->OnAccept(eh, client, server);
93 // IOHook could have encountered a fatal error, e.g. if the TLS ClientHello was already in the queue and there was no common TLS version
94 if (!eh->getError().empty())
96 QuitUser(New, eh->getError());
101 if (this->local_users.size() > ServerInstance->Config->SoftLimit)
103 ServerInstance->SNO->WriteToSnoMask('a', "Warning: softlimit value has been reached: %d clients", ServerInstance->Config->SoftLimit);
104 this->QuitUser(New,"No more connections allowed");
108 // First class check. We do this again in LocalUser::FullConnect() after DNS is done, and NICK/USER is received.
110 // If the user doesn't have an acceptable connect class CheckClass() quits them
111 New->CheckClass(ServerInstance->Config->CCOnConnect);
116 * even with bancache, we still have to keep User::exempt current.
117 * besides that, if we get a positive bancache hit, we still won't fuck
118 * them over if they are exempt. -- w00t
120 New->exempt = (ServerInstance->XLines->MatchesLine("E",New) != NULL);
122 BanCacheHit* const b = ServerInstance->BanCache.GetHit(New->GetIPString());
125 if (!b->Type.empty() && !New->exempt)
128 ServerInstance->Logs->Log("BANCACHE", LOG_DEBUG, "BanCache: Positive hit for " + New->GetIPString());
129 if (!ServerInstance->Config->XLineMessage.empty())
130 New->WriteNumeric(ERR_YOUREBANNEDCREEP, ServerInstance->Config->XLineMessage);
131 this->QuitUser(New, b->Reason);
136 ServerInstance->Logs->Log("BANCACHE", LOG_DEBUG, "BanCache: Negative hit for " + New->GetIPString());
143 XLine* r = ServerInstance->XLines->MatchesLine("Z",New);
153 if (ServerInstance->Config->RawLog)
154 New->WriteNotice("*** Raw I/O logging is enabled on this server. All messages, passwords, and commands are being recorded.");
156 FOREACH_MOD(OnSetUserIP, (New));
160 FOREACH_MOD(OnUserInit, (New));
163 void UserManager::QuitUser(User* user, const std::string& quitreason, const std::string* operreason)
167 ServerInstance->Logs->Log("USERS", LOG_DEFAULT, "ERROR: Tried to quit quitting user: " + user->nick);
173 ServerInstance->Logs->Log("USERS", LOG_DEFAULT, "ERROR: Tried to quit server user: " + user->nick);
177 user->quitting = true;
179 ServerInstance->Logs->Log("USERS", LOG_DEBUG, "QuitUser: %s=%s '%s'", user->uuid.c_str(), user->nick.c_str(), quitreason.c_str());
180 user->Write("ERROR :Closing link: (%s@%s) [%s]", user->ident.c_str(), user->host.c_str(), operreason ? operreason->c_str() : quitreason.c_str());
183 reason.assign(quitreason, 0, ServerInstance->Config->Limits.MaxQuit);
185 operreason = &reason;
187 ServerInstance->GlobalCulls.AddItem(user);
189 if (user->registered == REG_ALL)
191 FOREACH_MOD(OnUserQuit, (user, reason, *operreason));
192 WriteCommonQuit(user, reason, *operreason);
195 unregistered_count--;
199 LocalUser* lu = IS_LOCAL(user);
200 FOREACH_MOD(OnUserDisconnect, (lu));
203 if (lu->registered == REG_ALL)
204 ServerInstance->SNO->WriteToSnoMask('q',"Client exiting: %s (%s) [%s]", user->GetFullRealHost().c_str(), user->GetIPString().c_str(), operreason->c_str());
205 local_users.erase(lu);
208 if (!clientlist.erase(user->nick))
209 ServerInstance->Logs->Log("USERS", LOG_DEFAULT, "ERROR: Nick not found in clientlist, cannot remove: " + user->nick);
211 uuidlist.erase(user->uuid);
212 user->PurgeEmptyChannels();
215 void UserManager::AddClone(User* user)
217 CloneCounts& counts = clonemap[user->GetCIDRMask()];
223 void UserManager::RemoveCloneCounts(User *user)
225 CloneMap::iterator it = clonemap.find(user->GetCIDRMask());
226 if (it != clonemap.end())
228 CloneCounts& counts = it->second;
230 if (counts.global == 0)
232 // No more users from this IP, remove entry from the map
242 void UserManager::RehashCloneCounts()
246 const user_hash& hash = ServerInstance->Users.GetUsers();
247 for (user_hash::const_iterator i = hash.begin(); i != hash.end(); ++i)
254 const UserManager::CloneCounts& UserManager::GetCloneCounts(User* user) const
256 CloneMap::const_iterator it = clonemap.find(user->GetCIDRMask());
257 if (it != clonemap.end())
260 return zeroclonecounts;
263 void UserManager::ServerNoticeAll(const char* text, ...)
266 VAFORMAT(message, text, text);
267 message = "NOTICE $" + ServerInstance->Config->ServerName + " :" + message;
269 for (LocalList::const_iterator i = local_users.begin(); i != local_users.end(); ++i)
272 t->WriteServ(message);
276 /* this returns true when all modules are satisfied that the user should be allowed onto the irc server
277 * (until this returns true, a user will block in the waiting state, waiting to connect up to the
278 * registration timeout maximum seconds)
280 bool UserManager::AllModulesReportReady(LocalUser* user)
283 FIRST_MOD_RESULT(OnCheckReady, res, (user));
284 return (res == MOD_RES_PASSTHRU);
288 * This function is called once a second from the mainloop.
289 * It is intended to do background checking on all the users, e.g. do
290 * ping checks, registration timeouts, etc.
292 void UserManager::DoBackgroundUserStuff()
294 for (LocalList::iterator i = local_users.begin(); i != local_users.end(); )
296 // It's possible that we quit the user below due to ping timeout etc. and QuitUser() removes it from the list
297 LocalUser* curr = *i;
300 if (curr->CommandFloodPenalty || curr->eh.getSendQSize())
302 unsigned int rate = curr->MyClass->GetCommandRate();
303 if (curr->CommandFloodPenalty > rate)
304 curr->CommandFloodPenalty -= rate;
306 curr->CommandFloodPenalty = 0;
307 curr->eh.OnDataReady();
310 switch (curr->registered)
313 if (ServerInstance->Time() >= curr->nping)
315 // This user didn't answer the last ping, remove them
318 time_t time = ServerInstance->Time() - (curr->nping - curr->MyClass->GetPingTime());
319 const std::string message = "Ping timeout: " + ConvToStr(time) + (time != 1 ? " seconds" : " second");
320 this->QuitUser(curr, message);
324 curr->Write("PING :" + ServerInstance->Config->ServerName);
326 curr->nping = ServerInstance->Time() + curr->MyClass->GetPingTime();
330 if (AllModulesReportReady(curr))
332 /* User has sent NICK/USER, modules are okay, DNS finished. */
337 // If the user has been quit in OnCheckReady then we shouldn't
338 // quit them again for having a registration timeout.
344 if (curr->registered != REG_ALL && curr->MyClass && (ServerInstance->Time() > (curr->signon + curr->MyClass->GetRegTimeout())))
347 * registration timeout -- didnt send USER/NICK/HOST
348 * in the time specified in their connection class.
350 this->QuitUser(curr, "Registration timeout");
356 already_sent_t UserManager::NextAlreadySentId()
358 if (++already_sent_id == 0)
360 // Wrapped around, reset the already_sent ids of all users
362 for (LocalList::iterator i = local_users.begin(); i != local_users.end(); ++i)
364 LocalUser* user = *i;
365 user->already_sent = 0;
368 return already_sent_id;