-/* +------------------------------------+
- * | 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 "bancache.h"
+#include "iohook.h"
-/* add a client connection to the sockets list */
-void UserManager::AddUser(InspIRCd* Instance, int socket, int port, bool iscached, int socketfamily, sockaddr* ip, const std::string &targetip)
+namespace
{
- /* NOTE: Calling this one parameter constructor for User automatically
- * allocates a new UUID and places it in the hash_map.
- */
- User* New = NULL;
- try
+ class WriteCommonQuit : public User::ForEachNeighborHandler
{
- New = new User(Instance);
- }
- catch (...)
- {
- Instance->Logs->Log("USERS", DEFAULT,"*** WTF *** Duplicated UUID! -- Crack smoking monkies have been unleashed.");
- Instance->SNO->WriteToSnoMask('A', "WARNING *** Duplicate UUID allocated!");
- return;
- }
-
- char ipaddr[MAXBUF];
-#ifdef IPV6
- if (socketfamily == AF_INET6)
- inet_ntop(AF_INET6, &((const sockaddr_in6*)ip)->sin6_addr, ipaddr, sizeof(ipaddr));
- else
-#endif
- inet_ntop(AF_INET, &((const sockaddr_in*)ip)->sin_addr, ipaddr, sizeof(ipaddr));
+ ClientProtocol::Messages::Quit quitmsg;
+ ClientProtocol::Event quitevent;
+ ClientProtocol::Messages::Quit operquitmsg;
+ ClientProtocol::Event operquitevent;
- New->SetFd(socket);
- New->SetSockAddr(socketfamily, ipaddr, port);
+ void Execute(LocalUser* user) CXX11_OVERRIDE
+ {
+ user->Send(user->IsOper() ? operquitevent : quitevent);
+ }
- /* Give each of the modules an attempt to hook the user for I/O */
- FOREACH_MOD_I(Instance, I_OnHookUserIO, OnHookUserIO(New, targetip));
+ public:
+ WriteCommonQuit(User* user, const std::string& msg, const std::string& opermsg)
+ : quitmsg(user, msg)
+ , quitevent(ServerInstance->GetRFCEvents().quit, quitmsg)
+ , operquitmsg(user, opermsg)
+ , operquitevent(ServerInstance->GetRFCEvents().quit, operquitmsg)
+ {
+ user->ForEachNeighbor(*this, false);
+ }
+ };
- if (New->io)
+ void CheckPingTimeout(LocalUser* user)
{
- try
+ // Check if it is time to ping the user yet.
+ if (ServerInstance->Time() < user->nextping)
+ return;
+
+ // This user didn't answer the last ping, remove them.
+ if (!user->lastping)
{
- New->io->OnRawSocketAccept(socket, ipaddr, port);
+ time_t secs = ServerInstance->Time() - (user->nextping - user->MyClass->GetPingTime());
+ const std::string message = "Ping timeout: " + ConvToStr(secs) + (secs != 1 ? " seconds" : " second");
+ ServerInstance->Users.QuitUser(user, message);
+ return;
}
- catch (CoreException& modexcept)
+
+ // Send a ping to the client.
+ ClientProtocol::Messages::Ping ping;
+ user->Send(ServerInstance->GetRFCEvents().ping, ping);
+ user->lastping = 0;
+ user->nextping = ServerInstance->Time() + user->MyClass->GetPingTime();
+ }
+
+ void CheckRegistrationTimeout(LocalUser* user)
+ {
+ if (user->GetClass() && (ServerInstance->Time() > (user->signon + user->GetClass()->GetRegTimeout())))
{
- ServerInstance->Logs->Log("SOCKET", DEBUG,"%s threw an exception: %s", modexcept.GetSource(), modexcept.GetReason());
+ // Either the user did not send NICK/USER or a module blocked registration in
+ // OnCheckReady until the client timed out.
+ ServerInstance->Users.QuitUser(user, "Registration timeout");
}
}
- Instance->Logs->Log("USERS", DEBUG,"New user fd: %d", socket);
-
- this->unregistered_count++;
-
- (*(this->clientlist))[New->uuid] = New;
+ void CheckModulesReady(LocalUser* user)
+ {
+ ModResult res;
+ FIRST_MOD_RESULT(OnCheckReady, res, (user));
+ if (res == MOD_RES_PASSTHRU)
+ {
+ // User has sent NICK/USER and modules are ready.
+ user->FullConnect();
+ return;
+ }
- /* The users default nick is their UUID */
- New->nick.assign(New->uuid, 0, NICKMAX - 1);
+ // If the user has been quit in OnCheckReady then we shouldn't quit
+ // them again for having a registration timeout.
+ if (!user->quitting)
+ CheckRegistrationTimeout(user);
+ }
+}
- New->server = Instance->FindServerNamePtr(Instance->Config->ServerName);
- New->ident.assign("unknown");
+UserManager::UserManager()
+ : already_sent_id(0)
+ , unregistered_count(0)
+{
+}
- New->registered = REG_NONE;
- New->signon = Instance->Time() + Instance->Config->dns_timeout;
- New->lastping = 1;
+UserManager::~UserManager()
+{
+ for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); ++i)
+ {
+ delete i->second;
+ }
+}
- /* Smarter than your average bear^H^H^H^Hset of strlcpys. */
- New->dhost.assign(New->host.assign(New->GetIPString(), 64));
+void UserManager::AddUser(int socket, ListenSocket* via, irc::sockets::sockaddrs* client, irc::sockets::sockaddrs* server)
+{
+ // User constructor allocates a new UUID for the user and inserts it into the uuidlist
+ LocalUser* const New = new LocalUser(socket, client, server);
+ UserIOHandler* eh = &New->eh;
- Instance->Users->AddLocalClone(New);
- Instance->Users->AddGlobalClone(New);
+ ServerInstance->Logs->Log("USERS", LOG_DEBUG, "New user fd: %d", socket);
- /*
- * 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
- */
- ConnectClass* i = New->SetClass();
+ this->unregistered_count++;
+ this->clientlist[New->nick] = New;
+ this->AddClone(New);
+ this->local_users.push_front(New);
+ FOREACH_MOD(OnUserInit, (New));
- if (!i)
+ if (!SocketEngine::AddFd(eh, FD_WANT_FAST_READ | FD_WANT_EDGE_WRITE))
{
- this->QuitUser(New, "Access denied by configuration");
+ ServerInstance->Logs->Log("USERS", LOG_DEBUG, "Internal error on new connection");
+ this->QuitUser(New, "Internal error handling connection");
return;
}
- /*
- * Check connect class settings and initialise settings into User.
- * This will be done again after DNS resolution. -- w00t
- */
- New->CheckClass();
+ // If this listener has an IO hook provider set then tell it about the connection
+ for (ListenSocket::IOHookProvList::iterator i = via->iohookprovs.begin(); i != via->iohookprovs.end(); ++i)
+ {
+ ListenSocket::IOHookProvRef& iohookprovref = *i;
+ if (!iohookprovref)
+ continue;
- this->local_users.push_back(New);
+ iohookprovref->OnAccept(eh, client, server);
+ // 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
+ if (!eh->getError().empty())
+ {
+ QuitUser(New, eh->getError());
+ return;
+ }
+ }
- if ((this->local_users.size() > Instance->Config->SoftLimit) || (this->local_users.size() >= (unsigned int)Instance->SE->GetMaxFds()))
+ if (this->local_users.size() > ServerInstance->Config->SoftLimit)
{
- Instance->SNO->WriteToSnoMask('A', "Warning: softlimit value has been reached: %d clients", Instance->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;
}
- /*
- * XXX -
- * this is done as a safety check to keep the file descriptors within range of fd_ref_table.
- * its a pretty big but for the moment valid assumption:
- * file descriptors are handed out starting at 0, and are recycled as theyre freed.
- * therefore if there is ever an fd over 65535, 65536 clients must be connected to the
- * irc server at once (or the irc server otherwise initiating this many connections, files etc)
- * which for the time being is a physical impossibility (even the largest networks dont have more
- * than about 10,000 users on ONE server!)
- */
- if (socket >= Instance->SE->GetMaxFds())
- {
- this->QuitUser(New, "Server is full");
+ // First class check. We do this again in LocalUser::FullConnect() after DNS is done, and NICK/USER is received.
+ New->SetClass();
+ // If the user doesn't have an acceptable connect class CheckClass() quits them
+ 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 = (Instance->XLines->MatchesLine("E",New) != NULL);
+ New->exempt = (ServerInstance->XLines->MatchesLine("E",New) != NULL);
- if (BanCacheHit *b = Instance->BanCache->GetHit(New->GetIPString()))
+ BanCacheHit* const b = ServerInstance->BanCache.GetHit(New->GetIPString());
+ if (b)
{
if (!b->Type.empty() && !New->exempt)
{
/* user banned */
- Instance->Logs->Log("BANCACHE", DEBUG, std::string("BanCache: Positive hit for ") + New->GetIPString());
- if (*Instance->Config->MoronBanner)
- New->WriteServ("NOTICE %s :*** %s", New->nick.c_str(), Instance->Config->MoronBanner);
- this->QuitUser(New, b->Reason);
+ ServerInstance->Logs->Log("BANCACHE", LOG_DEBUG, "BanCache: Positive hit for " + New->GetIPString());
+ if (!ServerInstance->Config->XLineMessage.empty())
+ New->WriteNumeric(ERR_YOUREBANNEDCREEP, ServerInstance->Config->XLineMessage);
+
+ if (ServerInstance->Config->HideBans)
+ this->QuitUser(New, b->Type + "-lined", &b->Reason);
+ else
+ this->QuitUser(New, b->Reason);
return;
}
else
{
- Instance->Logs->Log("BANCACHE", DEBUG, std::string("BanCache: Negative hit for ") + New->GetIPString());
+ ServerInstance->Logs->Log("BANCACHE", LOG_DEBUG, "BanCache: Negative hit for " + New->GetIPString());
}
}
else
{
if (!New->exempt)
{
- XLine* r = Instance->XLines->MatchesLine("Z",New);
+ XLine* r = ServerInstance->XLines->MatchesLine("Z",New);
if (r)
{
}
}
- if (!Instance->SE->AddFd(New))
+ 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;
+}
+
+void UserManager::QuitUser(User* user, const std::string& quitreason, const std::string* operreason)
+{
+ if (user->quitting)
{
- Instance->Logs->Log("USERS", DEBUG,"Internal error on new connection");
- this->QuitUser(New, "Internal error handling connection");
+ ServerInstance->Logs->Log("USERS", LOG_DEFAULT, "ERROR: Tried to quit quitting user: " + user->nick);
+ return;
}
- /* NOTE: even if dns lookups are *off*, we still need to display this.
- * BOPM and other stuff requires it.
- */
- New->WriteServ("NOTICE Auth :*** Looking up your hostname...");
-
- if (Instance->Config->NoUserDns)
+ if (IS_SERVER(user))
{
- New->WriteServ("NOTICE %s :*** Skipping host resolution (disabled by server administrator)", New->nick.c_str());
- New->dns_done = true;
+ ServerInstance->Logs->Log("USERS", LOG_DEFAULT, "ERROR: Tried to quit server user: " + user->nick);
+ return;
}
- else
+
+ user->quitting = true;
+
+ ServerInstance->Logs->Log("USERS", LOG_DEBUG, "QuitUser: %s=%s '%s'", user->uuid.c_str(), user->nick.c_str(), quitreason.c_str());
+ LocalUser* const localuser = IS_LOCAL(user);
+ if (localuser)
{
- New->StartDNSLookup();
+ ClientProtocol::Messages::Error errormsg(InspIRCd::Format("Closing link: (%s@%s) [%s]", user->ident.c_str(), user->GetRealHost().c_str(), operreason ? operreason->c_str() : quitreason.c_str()));
+ localuser->Send(ServerInstance->GetRFCEvents().error, errormsg);
}
-}
-void UserManager::QuitUser(User *user, const std::string &quitreason, const char* operreason)
-{
- ServerInstance->Logs->Log("USERS", DEBUG,"QuitUser: %s '%s'", 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 : quitreason.c_str());
- user->quietquit = false;
- user->quitmsg = quitreason;
+ std::string reason;
+ reason.assign(quitreason, 0, ServerInstance->Config->Limits.MaxQuit);
+ if (!operreason)
+ operreason = &reason;
- if (!*operreason)
- user->operquitmsg = quitreason;
+ ServerInstance->GlobalCulls.AddItem(user);
+
+ if (user->registered == REG_ALL)
+ {
+ FOREACH_MOD(OnUserQuit, (user, reason, *operreason));
+ WriteCommonQuit(user, reason, *operreason);
+ }
else
- user->operquitmsg = operreason;
+ unregistered_count--;
- ServerInstance->GlobalCulls.AddItem(user);
-}
+ 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);
+ }
-void UserManager::AddLocalClone(User *user)
-{
- clonemap::iterator x = local_clones.find(user->GetIPString());
- if (x != local_clones.end())
- x->second++;
- else
- local_clones[user->GetIPString()] = 1;
+ 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();
+ user->UnOper();
}
-void UserManager::AddGlobalClone(User *user)
+void UserManager::AddClone(User* user)
{
- clonemap::iterator y = global_clones.find(user->GetIPString());
- if (y != global_clones.end())
- y->second++;
- else
- global_clones[user->GetIPString()] = 1;
+ CloneCounts& counts = clonemap[user->GetCIDRMask()];
+ counts.global++;
+ if (IS_LOCAL(user))
+ counts.local++;
}
void UserManager::RemoveCloneCounts(User *user)
{
- clonemap::iterator x = local_clones.find(user->GetIPString());
- if (x != local_clones.end())
- {
- x->second--;
- if (!x->second)
- {
- local_clones.erase(x);
- }
- }
-
- clonemap::iterator y = global_clones.find(user->GetIPString());
- if (y != global_clones.end())
+ CloneMap::iterator it = clonemap.find(user->GetCIDRMask());
+ if (it != clonemap.end())
{
- y->second--;
- if (!y->second)
+ CloneCounts& counts = it->second;
+ counts.global--;
+ if (counts.global == 0)
{
- global_clones.erase(y);
+ // No more users from this IP, remove entry from the map
+ clonemap.erase(it);
+ return;
}
- }
-}
-
-unsigned long UserManager::GlobalCloneCount(User *user)
-{
- clonemap::iterator x = global_clones.find(user->GetIPString());
- if (x != global_clones.end())
- return x->second;
- else
- return 0;
-}
-
-unsigned long UserManager::LocalCloneCount(User *user)
-{
- clonemap::iterator x = local_clones.find(user->GetIPString());
- if (x != local_clones.end())
- return x->second;
- else
- return 0;
-}
-/* this function counts all users connected, wether they are registered or NOT. */
-unsigned int UserManager::UserCount()
-{
- /*
- * XXX: Todo:
- * As part of this restructuring, move clientlist/etc fields into usermanager.
- * -- w00t
- */
- return this->clientlist->size();
-}
-
-/* this counts only registered users, so that the percentages in /MAP don't mess up */
-unsigned int UserManager::RegisteredUserCount()
-{
- return this->clientlist->size() - this->UnregisteredUserCount();
+ if (IS_LOCAL(user))
+ counts.local--;
+ }
}
-/* return how many users are opered */
-unsigned int UserManager::OperCount()
+void UserManager::RehashCloneCounts()
{
- return this->all_opers.size();
-}
+ clonemap.clear();
-/* return how many users are unregistered */
-unsigned int UserManager::UnregisteredUserCount()
-{
- return this->unregistered_count;
+ 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);
+ }
}
-/* return how many local registered users there are */
-unsigned int UserManager::LocalUserCount()
+const UserManager::CloneCounts& UserManager::GetCloneCounts(User* user) const
{
- /* Doesnt count unregistered clients */
- return (this->local_users.size() - this->UnregisteredUserCount());
+ CloneMap::const_iterator it = clonemap.find(user->GetCIDRMask());
+ if (it != clonemap.end())
+ return it->second;
+ else
+ return zeroclonecounts;
}
void UserManager::ServerNoticeAll(const char* text, ...)
{
- if (!text)
- return;
-
- char textbuffer[MAXBUF];
- char formatbuffer[MAXBUF];
- va_list argsPtr;
- va_start (argsPtr, text);
- vsnprintf(textbuffer, MAXBUF, text, argsPtr);
- va_end(argsPtr);
+ std::string message;
+ VAFORMAT(message, text, text);
+ ClientProtocol::Messages::Privmsg msg(ClientProtocol::Messages::Privmsg::nocopy, ServerInstance->FakeClient, ServerInstance->Config->ServerName, message, MSG_NOTICE);
+ ClientProtocol::Event msgevent(ServerInstance->GetRFCEvents().privmsg, msg);
- snprintf(formatbuffer,MAXBUF,"NOTICE $%s :%s", ServerInstance->Config->ServerName, textbuffer);
-
- for (std::vector<User*>::const_iterator i = local_users.begin(); i != local_users.end(); i++)
+ for (LocalList::const_iterator i = local_users.begin(); i != local_users.end(); ++i)
{
- User* t = *i;
- t->WriteServ(std::string(formatbuffer));
+ LocalUser* user = *i;
+ user->Send(msgevent);
}
}
-void UserManager::ServerPrivmsgAll(const char* text, ...)
-{
- if (!text)
- return;
-
- char textbuffer[MAXBUF];
- char formatbuffer[MAXBUF];
- va_list argsPtr;
- va_start (argsPtr, text);
- vsnprintf(textbuffer, MAXBUF, text, argsPtr);
- va_end(argsPtr);
-
- snprintf(formatbuffer,MAXBUF,"PRIVMSG $%s :%s", ServerInstance->Config->ServerName, textbuffer);
-
- for (std::vector<User*>::const_iterator i = local_users.begin(); i != local_users.end(); i++)
- {
- User* t = *i;
- t->WriteServ(std::string(formatbuffer));
- }
-}
-
-void UserManager::WriteMode(const char* modes, int flags, const char* text, ...)
+/**
+ * This function is called once a second from the mainloop.
+ * It is intended to do background checking on all the users, e.g. do
+ * ping checks, registration timeouts, etc.
+ */
+void UserManager::DoBackgroundUserStuff()
{
- char textbuffer[MAXBUF];
- int modelen;
- va_list argsPtr;
-
- if (!text || !modes || !flags)
+ for (LocalList::iterator i = local_users.begin(); i != local_users.end(); )
{
- ServerInstance->Logs->Log("USERS", DEFAULT,"*** BUG *** WriteMode was given an invalid parameter");
- return;
- }
+ // 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;
- va_start(argsPtr, text);
- vsnprintf(textbuffer, MAXBUF, text, argsPtr);
- va_end(argsPtr);
- modelen = strlen(modes);
-
- if (flags == WM_AND)
- {
- for (std::vector<User*>::const_iterator i = local_users.begin(); i != local_users.end(); i++)
+ if (curr->CommandFloodPenalty || curr->eh.getSendQSize())
{
- User* t = *i;
- bool send_to_user = true;
-
- for (int n = 0; n < modelen; n++)
- {
- if (!t->IsModeSet(modes[n]))
- {
- send_to_user = false;
- break;
- }
- }
- if (send_to_user)
- {
- t->WriteServ("NOTICE %s :%s", t->nick.c_str(), textbuffer);
- }
+ unsigned int rate = curr->MyClass->GetCommandRate();
+ if (curr->CommandFloodPenalty > rate)
+ curr->CommandFloodPenalty -= rate;
+ else
+ curr->CommandFloodPenalty = 0;
+ curr->eh.OnDataReady();
}
- }
- else if (flags == WM_OR)
- {
- for (std::vector<User*>::const_iterator i = local_users.begin(); i != local_users.end(); i++)
+
+ switch (curr->registered)
{
- User* t = *i;
- bool send_to_user = false;
+ case REG_ALL:
+ CheckPingTimeout(curr);
+ break;
- for (int n = 0; n < modelen; n++)
- {
- if (t->IsModeSet(modes[n]))
- {
- send_to_user = true;
- break;
- }
- }
+ case REG_NICKUSER:
+ CheckModulesReady(curr);
+ break;
- if (send_to_user)
- {
- t->WriteServ("NOTICE %s :%s", t->nick.c_str(), textbuffer);
- }
+ default:
+ CheckRegistrationTimeout(curr);
+ break;
}
}
}
-/* return how many users have a given mode e.g. 'a' */
-int UserManager::ModeCount(const char mode)
+already_sent_t UserManager::NextAlreadySentId()
{
- ModeHandler* mh = this->ServerInstance->Modes->FindMode(mode, MODETYPE_USER);
-
- if (mh)
- return mh->GetCount();
- else
- return 0;
+ if (++already_sent_id == 0)
+ {
+ // Wrapped around, reset the already_sent ids of all users
+ already_sent_id = 1;
+ for (LocalList::iterator i = local_users.begin(); i != local_users.end(); ++i)
+ {
+ LocalUser* user = *i;
+ user->already_sent = 0;
+ }
+ }
+ return already_sent_id;
}
-
-
-