-/* +------------------------------------+
- * | Inspire Internet Relay Chat Daemon |
- * +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
*
- * InspIRCd: (C) 2002-2008 InspIRCd Development Team
- * See: http://www.inspircd.org/wiki/index.php/Credits
+ * Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
+ * Copyright (C) 2008 Dennis Friis <peavey@inspircd.org>
+ * Copyright (C) 2008 Robin Burchell <robin+git@viroteck.net>
+ * Copyright (C) 2008 Craig Edwards <craigedwards@brainbox.cc>
*
- * This program is free but copyrighted software; see
- * the file COPYING for details.
+ * 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/>.
*/
-/* $Core: libIRCDusermanager */
#include "inspircd.h"
+#include "xline.h"
+#include "iohook.h"
-void UserManager::AddLocalClone(User *user)
+namespace
{
- clonemap::iterator x = local_clones.find(user->GetIPString());
- if (x != local_clones.end())
- x->second++;
- else
- local_clones[user->GetIPString()] = 1;
+ class WriteCommonQuit : public User::ForEachNeighborHandler
+ {
+ std::string line;
+ std::string operline;
+
+ void Execute(LocalUser* user) CXX11_OVERRIDE
+ {
+ user->Write(user->IsOper() ? operline : line);
+ }
+
+ public:
+ WriteCommonQuit(User* user, const std::string& msg, const std::string& opermsg)
+ : line(":" + user->GetFullHost() + " QUIT :")
+ , operline(line)
+ {
+ line += msg;
+ operline += opermsg;
+ user->ForEachNeighbor(*this, false);
+ }
+ };
}
-void UserManager::AddGlobalClone(User *user)
+UserManager::UserManager()
+ : unregistered_count(0)
{
- clonemap::iterator y = global_clones.find(user->GetIPString());
- if (y != global_clones.end())
- y->second++;
- else
- global_clones[user->GetIPString()] = 1;
}
-void UserManager::RemoveCloneCounts(User *user)
+UserManager::~UserManager()
{
- clonemap::iterator x = local_clones.find(user->GetIPString());
- if (x != local_clones.end())
+ for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); ++i)
+ {
+ delete i->second;
+ }
+}
+
+/* add a client connection to the sockets list */
+void UserManager::AddUser(int socket, ListenSocket* via, irc::sockets::sockaddrs* client, irc::sockets::sockaddrs* server)
+{
+ /* NOTE: Calling this one parameter constructor for User automatically
+ * allocates a new UUID and places it in the hash_map.
+ */
+ LocalUser* const New = new LocalUser(socket, client, server);
+ UserIOHandler* eh = &New->eh;
+
+ // If this listener has an IO hook provider set then tell it about the connection
+ if (via->iohookprov)
+ via->iohookprov->OnAccept(eh, client, server);
+
+ ServerInstance->Logs->Log("USERS", LOG_DEBUG, "New user fd: %d", socket);
+
+ this->unregistered_count++;
+
+ /* The users default nick is their UUID */
+ New->nick = New->uuid;
+ this->clientlist[New->nick] = New;
+
+ New->registered = REG_NONE;
+ New->signon = ServerInstance->Time();
+ New->lastping = 1;
+
+ this->AddClone(New);
+
+ this->local_users.push_front(New);
+
+ if (this->local_users.size() > ServerInstance->Config->SoftLimit)
+ {
+ ServerInstance->SNO->WriteToSnoMask('a', "Warning: softlimit value has been reached: %d clients", ServerInstance->Config->SoftLimit);
+ this->QuitUser(New,"No more connections allowed");
+ return;
+ }
+
+ /*
+ * First class check. We do this again in FullConnect after DNS is done, and NICK/USER is recieved.
+ * See my note down there for why this is required. DO NOT REMOVE. :) -- w00t
+ */
+ New->SetClass();
+
+ /*
+ * Check connect class settings and initialise settings into User.
+ * This will be done again after DNS resolution. -- w00t
+ */
+ New->CheckClass(ServerInstance->Config->CCOnConnect);
+ if (New->quitting)
+ return;
+
+ /*
+ * even with bancache, we still have to keep User::exempt current.
+ * besides that, if we get a positive bancache hit, we still won't fuck
+ * them over if they are exempt. -- w00t
+ */
+ New->exempt = (ServerInstance->XLines->MatchesLine("E",New) != NULL);
+
+ BanCacheHit* const b = ServerInstance->BanCache.GetHit(New->GetIPString());
+ if (b)
{
- x->second--;
- if (!x->second)
+ if (!b->Type.empty() && !New->exempt)
{
- local_clones.erase(x);
+ /* user banned */
+ ServerInstance->Logs->Log("BANCACHE", LOG_DEBUG, "BanCache: Positive hit for " + New->GetIPString());
+ if (!ServerInstance->Config->XLineMessage.empty())
+ New->WriteNumeric(ERR_YOUREBANNEDCREEP, ":" + ServerInstance->Config->XLineMessage);
+ this->QuitUser(New, b->Reason);
+ return;
+ }
+ else
+ {
+ ServerInstance->Logs->Log("BANCACHE", LOG_DEBUG, "BanCache: Negative hit for " + New->GetIPString());
}
}
-
- clonemap::iterator y = global_clones.find(user->GetIPString());
- if (y != global_clones.end())
+ else
{
- y->second--;
- if (!y->second)
+ if (!New->exempt)
{
- global_clones.erase(y);
+ XLine* r = ServerInstance->XLines->MatchesLine("Z",New);
+
+ if (r)
+ {
+ r->Apply(New);
+ return;
+ }
}
}
+
+ if (!SocketEngine::AddFd(eh, FD_WANT_FAST_READ | FD_WANT_EDGE_WRITE))
+ {
+ ServerInstance->Logs->Log("USERS", LOG_DEBUG, "Internal error on new connection");
+ this->QuitUser(New, "Internal error handling connection");
+ }
+
+ if (ServerInstance->Config->RawLog)
+ New->WriteNotice("*** Raw I/O logging is enabled on this server. All messages, passwords, and commands are being recorded.");
+
+ FOREACH_MOD(OnSetUserIP, (New));
+ if (New->quitting)
+ return;
+
+ FOREACH_MOD(OnUserInit, (New));
}
-unsigned long UserManager::GlobalCloneCount(User *user)
+void UserManager::QuitUser(User* user, const std::string& quitreason, const std::string* operreason)
{
- clonemap::iterator x = global_clones.find(user->GetIPString());
- if (x != global_clones.end())
- return x->second;
+ if (user->quitting)
+ {
+ ServerInstance->Logs->Log("USERS", LOG_DEFAULT, "ERROR: Tried to quit quitting user: " + user->nick);
+ return;
+ }
+
+ if (IS_SERVER(user))
+ {
+ ServerInstance->Logs->Log("USERS", LOG_DEFAULT, "ERROR: Tried to quit server user: " + user->nick);
+ return;
+ }
+
+ user->quitting = true;
+
+ ServerInstance->Logs->Log("USERS", LOG_DEBUG, "QuitUser: %s=%s '%s'", user->uuid.c_str(), user->nick.c_str(), quitreason.c_str());
+ user->Write("ERROR :Closing link: (%s@%s) [%s]", user->ident.c_str(), user->host.c_str(), operreason ? operreason->c_str() : quitreason.c_str());
+
+ std::string reason;
+ reason.assign(quitreason, 0, ServerInstance->Config->Limits.MaxQuit);
+ if (!operreason)
+ operreason = &reason;
+
+ ServerInstance->GlobalCulls.AddItem(user);
+
+ if (user->registered == REG_ALL)
+ {
+ FOREACH_MOD(OnUserQuit, (user, reason, *operreason));
+ WriteCommonQuit(user, reason, *operreason);
+ }
else
- return 0;
+ unregistered_count--;
+
+ if (IS_LOCAL(user))
+ {
+ LocalUser* lu = IS_LOCAL(user);
+ FOREACH_MOD(OnUserDisconnect, (lu));
+ lu->eh.Close();
+
+ if (lu->registered == REG_ALL)
+ ServerInstance->SNO->WriteToSnoMask('q',"Client exiting: %s (%s) [%s]", user->GetFullRealHost().c_str(), user->GetIPString().c_str(), operreason->c_str());
+ local_users.erase(lu);
+ }
+
+ if (!clientlist.erase(user->nick))
+ ServerInstance->Logs->Log("USERS", LOG_DEFAULT, "ERROR: Nick not found in clientlist, cannot remove: " + user->nick);
+
+ uuidlist.erase(user->uuid);
+ user->PurgeEmptyChannels();
+}
+
+void UserManager::AddClone(User* user)
+{
+ CloneCounts& counts = clonemap[user->GetCIDRMask()];
+ counts.global++;
+ if (IS_LOCAL(user))
+ counts.local++;
}
-unsigned long UserManager::LocalCloneCount(User *user)
+void UserManager::RemoveCloneCounts(User *user)
{
- clonemap::iterator x = local_clones.find(user->GetIPString());
- if (x != local_clones.end())
- return x->second;
+ CloneMap::iterator it = clonemap.find(user->GetCIDRMask());
+ if (it != clonemap.end())
+ {
+ CloneCounts& counts = it->second;
+ counts.global--;
+ if (counts.global == 0)
+ {
+ // No more users from this IP, remove entry from the map
+ clonemap.erase(it);
+ return;
+ }
+
+ if (IS_LOCAL(user))
+ counts.local--;
+ }
+}
+
+void UserManager::RehashCloneCounts()
+{
+ clonemap.clear();
+
+ const user_hash& hash = ServerInstance->Users.GetUsers();
+ for (user_hash::const_iterator i = hash.begin(); i != hash.end(); ++i)
+ {
+ User* u = i->second;
+ AddClone(u);
+ }
+}
+
+const UserManager::CloneCounts& UserManager::GetCloneCounts(User* user) const
+{
+ CloneMap::const_iterator it = clonemap.find(user->GetCIDRMask());
+ if (it != clonemap.end())
+ return it->second;
else
- return 0;
+ return zeroclonecounts;
+}
+
+void UserManager::ServerNoticeAll(const char* text, ...)
+{
+ std::string message;
+ VAFORMAT(message, text, text);
+ message = "NOTICE $" + ServerInstance->Config->ServerName + " :" + message;
+
+ for (LocalList::const_iterator i = local_users.begin(); i != local_users.end(); ++i)
+ {
+ User* t = *i;
+ t->WriteServ(message);
+ }
+}
+
+void UserManager::GarbageCollect()
+{
+ // Reset the already_sent IDs so we don't wrap it around and drop a message
+ LocalUser::already_sent_id = 0;
+ for (LocalList::const_iterator i = local_users.begin(); i != local_users.end(); ++i)
+ {
+ (**i).already_sent = 0;
+ (**i).RemoveExpiredInvites();
+ }
+}
+
+/* this returns true when all modules are satisfied that the user should be allowed onto the irc server
+ * (until this returns true, a user will block in the waiting state, waiting to connect up to the
+ * registration timeout maximum seconds)
+ */
+bool UserManager::AllModulesReportReady(LocalUser* user)
+{
+ ModResult res;
+ FIRST_MOD_RESULT(OnCheckReady, res, (user));
+ return (res == MOD_RES_PASSTHRU);
+}
+
+/**
+ * This function is called once a second from the mainloop.
+ * It is intended to do background checking on all the user structs, e.g.
+ * stuff like ping checks, registration timeouts, etc.
+ */
+void UserManager::DoBackgroundUserStuff()
+{
+ /*
+ * loop over all local users..
+ */
+ for (LocalList::iterator i = local_users.begin(); i != local_users.end(); )
+ {
+ // It's possible that we quit the user below due to ping timeout etc. and QuitUser() removes it from the list
+ LocalUser* curr = *i;
+ ++i;
+
+ if (curr->CommandFloodPenalty || curr->eh.getSendQSize())
+ {
+ unsigned int rate = curr->MyClass->GetCommandRate();
+ if (curr->CommandFloodPenalty > rate)
+ curr->CommandFloodPenalty -= rate;
+ else
+ curr->CommandFloodPenalty = 0;
+ curr->eh.OnDataReady();
+ }
+
+ switch (curr->registered)
+ {
+ case REG_ALL:
+ if (ServerInstance->Time() >= curr->nping)
+ {
+ // This user didn't answer the last ping, remove them
+ if (!curr->lastping)
+ {
+ time_t time = ServerInstance->Time() - (curr->nping - curr->MyClass->GetPingTime());
+ const std::string message = "Ping timeout: " + ConvToStr(time) + (time != 1 ? " seconds" : " second");
+ this->QuitUser(curr, message);
+ continue;
+ }
+
+ curr->Write("PING :" + ServerInstance->Config->ServerName);
+ curr->lastping = 0;
+ curr->nping = ServerInstance->Time() + curr->MyClass->GetPingTime();
+ }
+ break;
+ case REG_NICKUSER:
+ if (AllModulesReportReady(curr))
+ {
+ /* User has sent NICK/USER, modules are okay, DNS finished. */
+ curr->FullConnect();
+ continue;
+ }
+
+ // If the user has been quit in OnCheckReady then we shouldn't
+ // quit them again for having a registration timeout.
+ if (curr->quitting)
+ continue;
+ break;
+ }
+
+ if (curr->registered != REG_ALL && curr->MyClass && (ServerInstance->Time() > (curr->signon + curr->MyClass->GetRegTimeout())))
+ {
+ /*
+ * registration timeout -- didnt send USER/NICK/HOST
+ * in the time specified in their connection class.
+ */
+ this->QuitUser(curr, "Registration timeout");
+ continue;
+ }
+ }
}
projects / user / henk / code / inspircd.git / blobdiff