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()
52 : unregistered_count(0)
56 UserManager::~UserManager()
58 for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); ++i)
64 /* add a client connection to the sockets list */
65 void UserManager::AddUser(int socket, ListenSocket* via, irc::sockets::sockaddrs* client, irc::sockets::sockaddrs* server)
67 /* NOTE: Calling this one parameter constructor for User automatically
68 * allocates a new UUID and places it in the hash_map.
70 LocalUser* New = NULL;
73 New = new LocalUser(socket, client, server);
77 ServerInstance->Logs->Log("USERS", LOG_DEFAULT, "*** WTF *** Duplicated UUID! -- Crack smoking monkeys have been unleashed.");
78 ServerInstance->SNO->WriteToSnoMask('a', "WARNING *** Duplicate UUID allocated!");
81 UserIOHandler* eh = &New->eh;
83 // If this listener has an IO hook provider set then tell it about the connection
85 via->iohookprov->OnAccept(eh, client, server);
87 ServerInstance->Logs->Log("USERS", LOG_DEBUG, "New user fd: %d", socket);
89 this->unregistered_count++;
91 /* The users default nick is their UUID */
92 New->nick = New->uuid;
93 this->clientlist[New->nick] = New;
95 New->registered = REG_NONE;
96 New->signon = ServerInstance->Time();
101 this->local_users.push_front(New);
103 if (this->local_users.size() > ServerInstance->Config->SoftLimit)
105 ServerInstance->SNO->WriteToSnoMask('a', "Warning: softlimit value has been reached: %d clients", ServerInstance->Config->SoftLimit);
106 this->QuitUser(New,"No more connections allowed");
111 * First class check. We do this again in FullConnect after DNS is done, and NICK/USER is recieved.
112 * See my note down there for why this is required. DO NOT REMOVE. :) -- w00t
117 * Check connect class settings and initialise settings into User.
118 * This will be done again after DNS resolution. -- w00t
120 New->CheckClass(ServerInstance->Config->CCOnConnect);
125 * even with bancache, we still have to keep User::exempt current.
126 * besides that, if we get a positive bancache hit, we still won't fuck
127 * them over if they are exempt. -- w00t
129 New->exempt = (ServerInstance->XLines->MatchesLine("E",New) != NULL);
131 BanCacheHit* const b = ServerInstance->BanCache.GetHit(New->GetIPString());
134 if (!b->Type.empty() && !New->exempt)
137 ServerInstance->Logs->Log("BANCACHE", LOG_DEBUG, "BanCache: Positive hit for " + New->GetIPString());
138 if (!ServerInstance->Config->XLineMessage.empty())
139 New->WriteNumeric(ERR_YOUREBANNEDCREEP, ":" + ServerInstance->Config->XLineMessage);
140 this->QuitUser(New, b->Reason);
145 ServerInstance->Logs->Log("BANCACHE", LOG_DEBUG, "BanCache: Negative hit for " + New->GetIPString());
152 XLine* r = ServerInstance->XLines->MatchesLine("Z",New);
162 if (!SocketEngine::AddFd(eh, FD_WANT_FAST_READ | FD_WANT_EDGE_WRITE))
164 ServerInstance->Logs->Log("USERS", LOG_DEBUG, "Internal error on new connection");
165 this->QuitUser(New, "Internal error handling connection");
168 if (ServerInstance->Config->RawLog)
169 New->WriteNotice("*** Raw I/O logging is enabled on this server. All messages, passwords, and commands are being recorded.");
171 FOREACH_MOD(OnSetUserIP, (New));
175 FOREACH_MOD(OnUserInit, (New));
178 void UserManager::QuitUser(User* user, const std::string& quitreason, const std::string* operreason)
182 ServerInstance->Logs->Log("USERS", LOG_DEFAULT, "ERROR: Tried to quit quitting user: " + user->nick);
188 ServerInstance->Logs->Log("USERS", LOG_DEFAULT, "ERROR: Tried to quit server user: " + user->nick);
192 user->quitting = true;
194 ServerInstance->Logs->Log("USERS", LOG_DEBUG, "QuitUser: %s=%s '%s'", user->uuid.c_str(), user->nick.c_str(), quitreason.c_str());
195 user->Write("ERROR :Closing link: (%s@%s) [%s]", user->ident.c_str(), user->host.c_str(), operreason ? operreason->c_str() : quitreason.c_str());
198 reason.assign(quitreason, 0, ServerInstance->Config->Limits.MaxQuit);
200 operreason = &reason;
202 ServerInstance->GlobalCulls.AddItem(user);
204 if (user->registered == REG_ALL)
206 FOREACH_MOD(OnUserQuit, (user, reason, *operreason));
207 WriteCommonQuit(user, reason, *operreason);
210 unregistered_count--;
214 LocalUser* lu = IS_LOCAL(user);
215 FOREACH_MOD(OnUserDisconnect, (lu));
218 if (lu->registered == REG_ALL)
219 ServerInstance->SNO->WriteToSnoMask('q',"Client exiting: %s (%s) [%s]", user->GetFullRealHost().c_str(), user->GetIPString().c_str(), operreason->c_str());
220 local_users.erase(lu);
223 if (!clientlist.erase(user->nick))
224 ServerInstance->Logs->Log("USERS", LOG_DEFAULT, "ERROR: Nick not found in clientlist, cannot remove: " + user->nick);
226 uuidlist.erase(user->uuid);
227 user->PurgeEmptyChannels();
230 void UserManager::AddClone(User* user)
232 CloneCounts& counts = clonemap[user->GetCIDRMask()];
238 void UserManager::RemoveCloneCounts(User *user)
240 CloneMap::iterator it = clonemap.find(user->GetCIDRMask());
241 if (it != clonemap.end())
243 CloneCounts& counts = it->second;
245 if (counts.global == 0)
247 // No more users from this IP, remove entry from the map
257 void UserManager::RehashCloneCounts()
261 const user_hash& hash = ServerInstance->Users.GetUsers();
262 for (user_hash::const_iterator i = hash.begin(); i != hash.end(); ++i)
269 const UserManager::CloneCounts& UserManager::GetCloneCounts(User* user) const
271 CloneMap::const_iterator it = clonemap.find(user->GetCIDRMask());
272 if (it != clonemap.end())
275 return zeroclonecounts;
278 void UserManager::ServerNoticeAll(const char* text, ...)
281 VAFORMAT(message, text, text);
282 message = "NOTICE $" + ServerInstance->Config->ServerName + " :" + message;
284 for (LocalList::const_iterator i = local_users.begin(); i != local_users.end(); ++i)
287 t->WriteServ(message);
291 void UserManager::GarbageCollect()
293 // Reset the already_sent IDs so we don't wrap it around and drop a message
294 LocalUser::already_sent_id = 0;
295 for (LocalList::const_iterator i = local_users.begin(); i != local_users.end(); ++i)
297 (**i).already_sent = 0;
298 (**i).RemoveExpiredInvites();
302 /* this returns true when all modules are satisfied that the user should be allowed onto the irc server
303 * (until this returns true, a user will block in the waiting state, waiting to connect up to the
304 * registration timeout maximum seconds)
306 bool UserManager::AllModulesReportReady(LocalUser* user)
309 FIRST_MOD_RESULT(OnCheckReady, res, (user));
310 return (res == MOD_RES_PASSTHRU);
314 * This function is called once a second from the mainloop.
315 * It is intended to do background checking on all the user structs, e.g.
316 * stuff like ping checks, registration timeouts, etc.
318 void UserManager::DoBackgroundUserStuff()
321 * loop over all local users..
323 for (LocalList::iterator i = local_users.begin(); i != local_users.end(); ++i)
325 LocalUser* curr = *i;
327 if (curr->CommandFloodPenalty || curr->eh.getSendQSize())
329 unsigned int rate = curr->MyClass->GetCommandRate();
330 if (curr->CommandFloodPenalty > rate)
331 curr->CommandFloodPenalty -= rate;
333 curr->CommandFloodPenalty = 0;
334 curr->eh.OnDataReady();
337 switch (curr->registered)
340 if (ServerInstance->Time() >= curr->nping)
342 // This user didn't answer the last ping, remove them
345 time_t time = ServerInstance->Time() - (curr->nping - curr->MyClass->GetPingTime());
346 const std::string message = "Ping timeout: " + ConvToStr(time) + (time != 1 ? " seconds" : " second");
347 this->QuitUser(curr, message);
351 curr->Write("PING :" + ServerInstance->Config->ServerName);
353 curr->nping = ServerInstance->Time() + curr->MyClass->GetPingTime();
357 if (AllModulesReportReady(curr))
359 /* User has sent NICK/USER, modules are okay, DNS finished. */
364 // If the user has been quit in OnCheckReady then we shouldn't
365 // quit them again for having a registration timeout.
371 if (curr->registered != REG_ALL && curr->MyClass && (ServerInstance->Time() > (curr->signon + curr->MyClass->GetRegTimeout())))
374 * registration timeout -- didnt send USER/NICK/HOST
375 * in the time specified in their connection class.
377 this->QuitUser(curr, "Registration timeout");