2 * InspIRCd -- Internet Relay Chat Daemon
4 * Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
5 * Copyright (C) 2006-2009 Robin Burchell <robin+git@viroteck.net>
6 * Copyright (C) 2006-2007, 2009 Dennis Friis <peavey@inspircd.org>
7 * Copyright (C) 2008 John Brooks <john.brooks@dereferenced.net>
8 * Copyright (C) 2008 Thomas Stagner <aquanight@inspircd.org>
9 * Copyright (C) 2008 Oliver Lupton <oliverlupton@gmail.com>
10 * Copyright (C) 2003-2008 Craig Edwards <craigedwards@brainbox.cc>
12 * This file is part of InspIRCd. InspIRCd is free software: you can
13 * redistribute it and/or modify it under the terms of the GNU General Public
14 * License as published by the Free Software Foundation, version 2.
16 * This program is distributed in the hope that it will be useful, but WITHOUT
17 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
18 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
21 * You should have received a copy of the GNU General Public License
22 * along with this program. If not, see <http://www.gnu.org/licenses/>.
28 #include "socketengine.h"
32 already_sent_t LocalUser::already_sent_id = 0;
34 std::string User::ProcessNoticeMasks(const char *sm)
36 bool adding = true, oldadding = false;
51 for (unsigned char d = 'a'; d <= 'z'; d++)
53 if (!ServerInstance->SNO->masks[d - 'a'].Description.empty())
55 if ((!IsNoticeMaskSet(d) && adding) || (IsNoticeMaskSet(d) && !adding))
57 if ((oldadding != adding) || (!output.length()))
58 output += (adding ? '+' : '-');
60 this->SetNoticeMask(d, adding);
66 if ((!IsNoticeMaskSet(u) && adding) || (IsNoticeMaskSet(u) && !adding))
68 if ((oldadding != adding) || (!output.length()))
69 output += (adding ? '+' : '-');
71 this->SetNoticeMask(u, adding);
82 if ((!IsNoticeMaskSet(*c) && adding) || (IsNoticeMaskSet(*c) && !adding))
84 if ((oldadding != adding) || (!output.length()))
85 output += (adding ? '+' : '-');
87 this->SetNoticeMask(*c, adding);
93 this->WriteNumeric(ERR_UNKNOWNSNOMASK, "%s %c :is unknown snomask char to me", this->nick.c_str(), *c);
102 std::string s = this->FormatNoticeMasks();
105 this->modes[UM_SNOMASK] = false;
111 bool User::IsNoticeMaskSet(unsigned char sm)
115 return (snomasks[sm-65]);
118 void User::SetNoticeMask(unsigned char sm, bool value)
122 snomasks[sm-65] = value;
125 const char* User::FormatNoticeMasks()
127 static char data[MAXBUF];
130 for (int n = 0; n < 64; n++)
133 data[offset++] = n+65;
140 bool User::IsModeSet(unsigned char m)
144 return (modes[m-65]);
147 void User::SetMode(unsigned char m, bool value)
154 const char* User::FormatModes(bool showparameters)
156 static std::string data;
160 for (unsigned char n = 0; n < 64; n++)
164 data.push_back(n + 65);
165 ModeHandler* mh = ServerInstance->Modes->FindMode(n + 65, MODETYPE_USER);
166 if (showparameters && mh && mh->GetNumParams(true))
168 std::string p = mh->GetUserParameter(this);
170 params.append(" ").append(p);
178 User::User(const std::string &uid, const std::string& sid, int type)
179 : uuid(uid), server(sid), usertype(type)
181 age = ServerInstance->Time();
184 quietquit = quitting = false;
185 client_sa.sa.sa_family = AF_UNSPEC;
187 ServerInstance->Logs->Log("USERS", LOG_DEBUG, "New UUID for user: %s", uuid.c_str());
189 user_hash::iterator finduuid = ServerInstance->Users->uuidlist->find(uuid);
190 if (finduuid == ServerInstance->Users->uuidlist->end())
191 (*ServerInstance->Users->uuidlist)[uuid] = this;
193 throw CoreException("Duplicate UUID "+std::string(uuid)+" in User constructor");
196 LocalUser::LocalUser(int myfd, irc::sockets::sockaddrs* client, irc::sockets::sockaddrs* servaddr)
197 : User(ServerInstance->UIDGen.GetUID(), ServerInstance->Config->ServerName, USERTYPE_LOCAL), eh(this),
198 localuseriter(ServerInstance->Users->local_users.end()),
199 bytes_in(0), bytes_out(0), cmds_in(0), cmds_out(0), nping(0), CommandFloodPenalty(0),
202 exempt = quitting_sendq = false;
207 memcpy(&client_sa, client, sizeof(irc::sockets::sockaddrs));
208 memcpy(&server_sa, servaddr, sizeof(irc::sockets::sockaddrs));
209 dhost = host = GetIPString();
214 if (ServerInstance->Users->uuidlist->find(uuid) != ServerInstance->Users->uuidlist->end())
215 ServerInstance->Logs->Log("USERS", LOG_DEFAULT, "User destructor for %s called without cull", uuid.c_str());
218 const std::string& User::MakeHost()
220 if (!this->cached_makehost.empty())
221 return this->cached_makehost;
224 /* This is much faster than snprintf */
226 for(const char* n = ident.c_str(); *n; n++)
229 for(const char* n = host.c_str(); *n; n++)
233 this->cached_makehost.assign(nhost);
235 return this->cached_makehost;
238 const std::string& User::MakeHostIP()
240 if (!this->cached_hostip.empty())
241 return this->cached_hostip;
244 /* This is much faster than snprintf */
246 for(const char* n = ident.c_str(); *n; n++)
249 for(const char* n = this->GetIPString().c_str(); *n; n++)
253 this->cached_hostip = ihost;
255 return this->cached_hostip;
258 const std::string& User::GetFullHost()
260 if (!this->cached_fullhost.empty())
261 return this->cached_fullhost;
265 for(const char* n = nick.c_str(); *n; n++)
268 for(const char* n = ident.c_str(); *n; n++)
271 for(const char* n = dhost.c_str(); *n; n++)
275 this->cached_fullhost = result;
277 return this->cached_fullhost;
280 char* User::MakeWildHost()
282 static char nresult[MAXBUF];
284 *t++ = '*'; *t++ = '!';
285 *t++ = '*'; *t++ = '@';
286 for(const char* n = dhost.c_str(); *n; n++)
292 const std::string& User::GetFullRealHost()
294 if (!this->cached_fullrealhost.empty())
295 return this->cached_fullrealhost;
297 char fresult[MAXBUF];
299 for(const char* n = nick.c_str(); *n; n++)
302 for(const char* n = ident.c_str(); *n; n++)
305 for(const char* n = host.c_str(); *n; n++)
309 this->cached_fullrealhost = fresult;
311 return this->cached_fullrealhost;
314 InviteList& LocalUser::GetInviteList()
316 RemoveExpiredInvites();
320 bool LocalUser::RemoveInvite(Channel* chan)
322 Invitation* inv = Invitation::Find(chan, this);
332 void LocalUser::RemoveExpiredInvites()
334 Invitation::Find(NULL, this);
337 bool User::HasModePermission(unsigned char, ModeType)
342 bool LocalUser::HasModePermission(unsigned char mode, ModeType type)
347 if (mode < 'A' || mode > ('A' + 64)) return false;
349 return ((type == MODETYPE_USER ? oper->AllowedUserModes : oper->AllowedChanModes))[(mode - 'A')];
353 * users on remote servers can completely bypass all permissions based checks.
354 * This prevents desyncs when one server has different type/class tags to another.
355 * That having been said, this does open things up to the possibility of source changes
356 * allowing remote kills, etc - but if they have access to the src, they most likely have
357 * access to the conf - so it's an end to a means either way.
359 bool User::HasPermission(const std::string&)
364 bool LocalUser::HasPermission(const std::string &command)
366 // are they even an oper at all?
372 if (oper->AllowedOperCommands.find(command) != oper->AllowedOperCommands.end())
374 else if (oper->AllowedOperCommands.find("*") != oper->AllowedOperCommands.end())
380 bool User::HasPrivPermission(const std::string &privstr, bool noisy)
385 bool LocalUser::HasPrivPermission(const std::string &privstr, bool noisy)
390 this->WriteNotice("You are not an oper");
394 if (oper->AllowedPrivs.find(privstr) != oper->AllowedPrivs.end())
398 else if (oper->AllowedPrivs.find("*") != oper->AllowedPrivs.end())
404 this->WriteNotice("Oper type " + oper->name + " does not have access to priv " + privstr);
409 void UserIOHandler::OnDataReady()
414 if (recvq.length() > user->MyClass->GetRecvqMax() && !user->HasPrivPermission("users/flood/increased-buffers"))
416 ServerInstance->Users->QuitUser(user, "RecvQ exceeded");
417 ServerInstance->SNO->WriteToSnoMask('a', "User %s RecvQ of %lu exceeds connect class maximum of %lu",
418 user->nick.c_str(), (unsigned long)recvq.length(), user->MyClass->GetRecvqMax());
421 unsigned long sendqmax = ULONG_MAX;
422 if (!user->HasPrivPermission("users/flood/increased-buffers"))
423 sendqmax = user->MyClass->GetSendqSoftMax();
424 unsigned long penaltymax = ULONG_MAX;
425 if (!user->HasPrivPermission("users/flood/no-fakelag"))
426 penaltymax = user->MyClass->GetPenaltyThreshold() * 1000;
428 while (user->CommandFloodPenalty < penaltymax && getSendQSize() < sendqmax)
431 line.reserve(ServerInstance->Config->Limits.MaxLine);
432 std::string::size_type qpos = 0;
433 while (qpos < recvq.length())
435 char c = recvq[qpos++];
446 if (line.length() < MAXBUF - 2)
449 // if we got here, the recvq ran out before we found a newline
452 // just found a newline. Terminate the string, and pull it out of recvq
453 recvq = recvq.substr(qpos);
455 // TODO should this be moved to when it was inserted in recvq?
456 ServerInstance->stats->statsRecv += qpos;
457 user->bytes_in += qpos;
460 ServerInstance->Parser->ProcessBuffer(line, user);
464 if (user->CommandFloodPenalty >= penaltymax && !user->MyClass->fakelag)
465 ServerInstance->Users->QuitUser(user, "Excess Flood");
468 void UserIOHandler::AddWriteBuf(const std::string &data)
470 if (user->quitting_sendq)
472 if (!user->quitting && getSendQSize() + data.length() > user->MyClass->GetSendqHardMax() &&
473 !user->HasPrivPermission("users/flood/increased-buffers"))
475 user->quitting_sendq = true;
476 ServerInstance->GlobalCulls.AddSQItem(user);
480 // We still want to append data to the sendq of a quitting user,
481 // e.g. their ERROR message that says 'closing link'
486 void UserIOHandler::OnError(BufferedSocketError)
488 ServerInstance->Users->QuitUser(user, getError());
491 CullResult User::cull()
494 ServerInstance->Users->QuitUser(this, "Culled without QuitUser");
495 PurgeEmptyChannels();
497 if (client_sa.sa.sa_family != AF_UNSPEC)
498 ServerInstance->Users->RemoveCloneCounts(this);
500 return Extensible::cull();
503 CullResult LocalUser::cull()
505 // The iterator is initialized to local_users.end() in the constructor. It is
506 // overwritten in UserManager::AddUser() with the real iterator so this check
507 // is only a precaution currently.
508 if (localuseriter != ServerInstance->Users->local_users.end())
510 ServerInstance->Users->local_count--;
511 ServerInstance->Users->local_users.erase(localuseriter);
514 ServerInstance->Logs->Log("USERS", LOG_DEFAULT, "ERROR: LocalUserIter does not point to a valid entry for " + this->nick);
521 CullResult FakeUser::cull()
523 // Fake users don't quit, they just get culled.
525 ServerInstance->Users->clientlist->erase(nick);
526 ServerInstance->Users->uuidlist->erase(uuid);
530 void User::Oper(OperInfo* info)
532 if (this->IsModeSet('o'))
535 this->modes[UM_OPERATOR] = 1;
537 this->WriteServ("MODE %s :+o", this->nick.c_str());
538 FOREACH_MOD(I_OnOper, OnOper(this, info->name));
540 std::string opername;
541 if (info->oper_block)
542 opername = info->oper_block->getString("name");
546 LocalUser* l = IS_LOCAL(this);
547 std::string vhost = oper->getConfig("vhost");
549 l->ChangeDisplayedHost(vhost.c_str());
550 std::string opClass = oper->getConfig("class");
551 if (!opClass.empty())
552 l->SetClass(opClass);
555 ServerInstance->SNO->WriteToSnoMask('o',"%s (%s@%s) is now an IRC operator of type %s (using oper '%s')",
556 nick.c_str(), ident.c_str(), host.c_str(), oper->name.c_str(), opername.c_str());
557 this->WriteNumeric(381, "%s :You are now %s %s", nick.c_str(), strchr("aeiouAEIOU", oper->name[0]) ? "an" : "a", oper->name.c_str());
559 ServerInstance->Logs->Log("OPER", LOG_DEFAULT, "%s opered as type: %s", GetFullRealHost().c_str(), oper->name.c_str());
560 ServerInstance->Users->all_opers.push_back(this);
562 // Expand permissions from config for faster lookup
566 FOREACH_MOD(I_OnPostOper,OnPostOper(this, oper->name, opername));
569 void OperInfo::init()
571 AllowedOperCommands.clear();
572 AllowedPrivs.clear();
573 AllowedUserModes.reset();
574 AllowedChanModes.reset();
575 AllowedUserModes['o' - 'A'] = true; // Call me paranoid if you want.
577 for(std::vector<reference<ConfigTag> >::iterator iter = class_blocks.begin(); iter != class_blocks.end(); ++iter)
579 ConfigTag* tag = *iter;
580 std::string mycmd, mypriv;
581 /* Process commands */
582 irc::spacesepstream CommandList(tag->getString("commands"));
583 while (CommandList.GetToken(mycmd))
585 AllowedOperCommands.insert(mycmd);
588 irc::spacesepstream PrivList(tag->getString("privs"));
589 while (PrivList.GetToken(mypriv))
591 AllowedPrivs.insert(mypriv);
594 std::string modes = tag->getString("usermodes");
595 for (std::string::const_iterator c = modes.begin(); c != modes.end(); ++c)
599 this->AllowedUserModes.set();
601 else if (*c >= 'A' && *c < 'z')
603 this->AllowedUserModes[*c - 'A'] = true;
607 modes = tag->getString("chanmodes");
608 for (std::string::const_iterator c = modes.begin(); c != modes.end(); ++c)
612 this->AllowedChanModes.set();
614 else if (*c >= 'A' && *c < 'z')
616 this->AllowedChanModes[*c - 'A'] = true;
628 * unset their oper type (what IS_OPER checks).
629 * note, order is important - this must come before modes as -o attempts
630 * to call UnOper. -- w00t
635 /* Remove all oper only modes from the user when the deoper - Bug #466*/
636 std::string moderemove("-");
638 for (unsigned char letter = 'A'; letter <= 'z'; letter++)
640 ModeHandler* mh = ServerInstance->Modes->FindMode(letter, MODETYPE_USER);
641 if (mh && mh->NeedsOper())
642 moderemove += letter;
646 std::vector<std::string> parameters;
647 parameters.push_back(this->nick);
648 parameters.push_back(moderemove);
650 ServerInstance->Parser->CallHandler("MODE", parameters, this);
652 /* remove the user from the oper list. Will remove multiple entries as a safeguard against bug #404 */
653 ServerInstance->Users->all_opers.remove(this);
655 this->modes[UM_OPERATOR] = 0;
659 * Check class restrictions
661 void LocalUser::CheckClass()
663 ConnectClass* a = this->MyClass;
667 ServerInstance->Users->QuitUser(this, "Access denied by configuration");
670 else if (a->type == CC_DENY)
672 ServerInstance->Users->QuitUser(this, a->config->getString("reason", "Unauthorised connection"));
675 else if ((a->GetMaxLocal()) && (ServerInstance->Users->LocalCloneCount(this) > a->GetMaxLocal()))
677 ServerInstance->Users->QuitUser(this, "No more connections allowed from your host via this connect class (local)");
679 ServerInstance->SNO->WriteToSnoMask('a', "WARNING: maximum LOCAL connections (%ld) exceeded for IP %s", a->GetMaxLocal(), this->GetIPString().c_str());
682 else if ((a->GetMaxGlobal()) && (ServerInstance->Users->GlobalCloneCount(this) > a->GetMaxGlobal()))
684 ServerInstance->Users->QuitUser(this, "No more connections allowed from your host via this connect class (global)");
686 ServerInstance->SNO->WriteToSnoMask('a', "WARNING: maximum GLOBAL connections (%ld) exceeded for IP %s", a->GetMaxGlobal(), this->GetIPString().c_str());
690 this->nping = ServerInstance->Time() + a->GetPingTime() + ServerInstance->Config->dns_timeout;
693 bool LocalUser::CheckLines(bool doZline)
695 const char* check[] = { "G" , "K", (doZline) ? "Z" : NULL, NULL };
699 for (int n = 0; check[n]; ++n)
701 XLine *r = ServerInstance->XLines->MatchesLine(check[n], this);
714 void LocalUser::FullConnect()
716 ServerInstance->stats->statsConnects++;
717 this->idle_lastmsg = ServerInstance->Time();
720 * You may be thinking "wtf, we checked this in User::AddClient!" - and yes, we did, BUT.
721 * At the time AddClient is called, we don't have a resolved host, by here we probably do - which
722 * may put the user into a totally seperate class with different restrictions! so we *must* check again.
723 * Don't remove this! -- w00t
733 this->WriteNumeric(RPL_WELCOME, "%s :Welcome to the %s IRC Network %s",this->nick.c_str(), ServerInstance->Config->Network.c_str(), GetFullRealHost().c_str());
734 this->WriteNumeric(RPL_YOURHOSTIS, "%s :Your host is %s, running version %s",this->nick.c_str(),ServerInstance->Config->ServerName.c_str(),BRANCH);
735 this->WriteNumeric(RPL_SERVERCREATED, "%s :This server was created %s %s", this->nick.c_str(), __TIME__, __DATE__);
737 const std::string& modelist = ServerInstance->Modes->GetModeListFor004Numeric();
738 this->WriteNumeric(RPL_SERVERVERSION, "%s %s %s %s", this->nick.c_str(), ServerInstance->Config->ServerName.c_str(), BRANCH, modelist.c_str());
740 ServerInstance->ISupport.SendTo(this);
741 this->WriteNumeric(RPL_YOURUUID, "%s %s :your unique ID", this->nick.c_str(), this->uuid.c_str());
744 if (ServerInstance->Users->unregistered_count)
745 ServerInstance->Users->unregistered_count--;
747 /* Trigger MOTD and LUSERS output, give modules a chance too */
748 ModResult MOD_RESULT;
749 std::string command("LUSERS");
750 std::vector<std::string> parameters;
751 FIRST_MOD_RESULT(OnPreCommand, MOD_RESULT, (command, parameters, this, true, command));
753 ServerInstance->Parser->CallHandler(command, parameters, this);
755 MOD_RESULT = MOD_RES_PASSTHRU;
757 FIRST_MOD_RESULT(OnPreCommand, MOD_RESULT, (command, parameters, this, true, command));
759 ServerInstance->Parser->CallHandler(command, parameters, this);
761 if (ServerInstance->Config->RawLog)
762 WriteServ("PRIVMSG %s :*** Raw I/O logging is enabled on this server. All messages, passwords, and commands are being recorded.", nick.c_str());
765 * We don't set REG_ALL until triggering OnUserConnect, so some module events don't spew out stuff
766 * for a user that doesn't exist yet.
768 FOREACH_MOD(I_OnUserConnect,OnUserConnect(this));
770 this->registered = REG_ALL;
772 FOREACH_MOD(I_OnPostConnect,OnPostConnect(this));
774 ServerInstance->SNO->WriteToSnoMask('c',"Client connecting on port %d (class %s): %s (%s) [%s]",
775 this->GetServerPort(), this->MyClass->name.c_str(), GetFullRealHost().c_str(), this->GetIPString().c_str(), this->fullname.c_str());
776 ServerInstance->Logs->Log("BANCACHE", LOG_DEBUG, "BanCache: Adding NEGATIVE hit for " + this->GetIPString());
777 ServerInstance->BanCache->AddHit(this->GetIPString(), "", "");
778 // reset the flood penalty (which could have been raised due to things like auto +x)
779 CommandFloodPenalty = 0;
782 void User::InvalidateCache()
784 /* Invalidate cache */
785 cached_fullhost.clear();
786 cached_hostip.clear();
787 cached_makehost.clear();
788 cached_fullrealhost.clear();
791 bool User::ChangeNick(const std::string& newnick, bool force)
795 ServerInstance->Logs->Log("USERS", LOG_DEFAULT, "ERROR: Attempted to change nick of a quitting user: " + this->nick);
801 ModResult MOD_RESULT;
802 FIRST_MOD_RESULT(OnUserPreNick, MOD_RESULT, (this, newnick));
804 if (MOD_RESULT == MOD_RES_DENY)
806 ServerInstance->stats->statsCollisions++;
811 if (assign(newnick) == assign(nick))
813 // case change, don't need to check Q:lines and such
814 // and, if it's identical including case, we can leave right now
821 * Don't check Q:Lines if it's a server-enforced change, just on the off-chance some fucking *moron*
822 * tries to Q:Line SIDs, also, this means we just get our way period, as it really should be.
823 * Thanks Kein for finding this. -- w00t
825 * Also don't check Q:Lines for remote nickchanges, they should have our Q:Lines anyway to enforce themselves.
828 if (IS_LOCAL(this) && !force)
830 XLine* mq = ServerInstance->XLines->MatchesLine("Q",newnick);
833 if (this->registered == REG_ALL)
835 ServerInstance->SNO->WriteGlobalSno('a', "Q-Lined nickname %s from %s: %s",
836 newnick.c_str(), GetFullRealHost().c_str(), mq->reason.c_str());
838 this->WriteNumeric(432, "%s %s :Invalid nickname: %s",this->nick.c_str(), newnick.c_str(), mq->reason.c_str());
842 if (ServerInstance->Config->RestrictBannedUsers)
844 for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
847 if (chan->GetPrefixValue(this) < VOICE_VALUE && chan->IsBanned(this))
849 this->WriteNumeric(404, "%s %s :Cannot send to channel (you're banned)", this->nick.c_str(), chan->name.c_str());
857 * Uh oh.. if the nickname is in use, and it's not in use by the person using it (doh) --
858 * then we have a potential collide. Check whether someone else is camping on the nick
859 * (i.e. connect -> send NICK, don't send USER.) If they are camping, force-change the
860 * camper to their UID, and allow the incoming nick change.
862 * If the guy using the nick is already using it, tell the incoming nick change to gtfo,
863 * because the nick is already (rightfully) in use. -- w00t
865 User* InUse = ServerInstance->FindNickOnly(newnick);
866 if (InUse && (InUse != this))
868 if (InUse->registered != REG_ALL)
870 /* force the camper to their UUID, and ask them to re-send a NICK. */
871 InUse->WriteTo(InUse, "NICK %s", InUse->uuid.c_str());
872 InUse->WriteNumeric(433, "%s %s :Nickname overruled.", InUse->nick.c_str(), InUse->nick.c_str());
874 ServerInstance->Users->clientlist->erase(InUse->nick);
875 (*(ServerInstance->Users->clientlist))[InUse->uuid] = InUse;
877 InUse->nick = InUse->uuid;
878 InUse->InvalidateCache();
879 InUse->registered &= ~REG_NICK;
883 /* No camping, tell the incoming user to stop trying to change nick ;p */
884 this->WriteNumeric(433, "%s %s :Nickname is already in use.", this->registered >= REG_NICK ? this->nick.c_str() : "*", newnick.c_str());
890 if (this->registered == REG_ALL)
891 this->WriteCommon("NICK %s",newnick.c_str());
892 std::string oldnick = nick;
896 ServerInstance->Users->clientlist->erase(oldnick);
897 (*(ServerInstance->Users->clientlist))[newnick] = this;
899 if (registered == REG_ALL)
900 FOREACH_MOD(I_OnUserPostNick,OnUserPostNick(this,oldnick));
905 int LocalUser::GetServerPort()
907 switch (this->server_sa.sa.sa_family)
910 return htons(this->server_sa.in6.sin6_port);
912 return htons(this->server_sa.in4.sin_port);
917 const std::string& User::GetIPString()
920 if (cachedip.empty())
922 irc::sockets::satoap(client_sa, cachedip, port);
923 /* IP addresses starting with a : on irc are a Bad Thing (tm) */
924 if (cachedip[0] == ':')
925 cachedip.insert(0,1,'0');
931 irc::sockets::cidr_mask User::GetCIDRMask()
934 switch (client_sa.sa.sa_family)
937 range = ServerInstance->Config->c_ipv6_range;
940 range = ServerInstance->Config->c_ipv4_range;
943 return irc::sockets::cidr_mask(client_sa, range);
946 bool User::SetClientIP(const char* sip, bool recheck_eline)
949 cached_hostip.clear();
950 return irc::sockets::aptosa(sip, 0, client_sa);
953 void User::SetClientIP(const irc::sockets::sockaddrs& sa, bool recheck_eline)
956 cached_hostip.clear();
957 memcpy(&client_sa, &sa, sizeof(irc::sockets::sockaddrs));
960 bool LocalUser::SetClientIP(const char* sip, bool recheck_eline)
962 irc::sockets::sockaddrs sa;
963 if (!irc::sockets::aptosa(sip, 0, sa))
967 LocalUser::SetClientIP(sa, recheck_eline);
971 void LocalUser::SetClientIP(const irc::sockets::sockaddrs& sa, bool recheck_eline)
975 User::SetClientIP(sa);
977 this->exempt = (ServerInstance->XLines->MatchesLine("E", this) != NULL);
979 FOREACH_MOD(I_OnSetUserIP,OnSetUserIP(this));
983 static std::string wide_newline("\r\n");
985 void User::Write(const std::string& text)
989 void User::Write(const char *text, ...)
993 void LocalUser::Write(const std::string& text)
995 if (!ServerInstance->SE->BoundsCheckFd(&eh))
998 if (text.length() > MAXBUF - 2)
1000 // this should happen rarely or never. Crop the string at 512 and try again.
1001 std::string try_again = text.substr(0, MAXBUF - 2);
1006 ServerInstance->Logs->Log("USEROUTPUT", LOG_RAWIO, "C[%s] O %s", uuid.c_str(), text.c_str());
1008 eh.AddWriteBuf(text);
1009 eh.AddWriteBuf(wide_newline);
1011 ServerInstance->stats->statsSent += text.length() + 2;
1012 this->bytes_out += text.length() + 2;
1018 void LocalUser::Write(const char *text, ...)
1020 std::string textbuffer;
1021 VAFORMAT(textbuffer, text, text);
1022 this->Write(textbuffer);
1025 void User::WriteServ(const std::string& text)
1027 this->Write(":%s %s",ServerInstance->Config->ServerName.c_str(),text.c_str());
1031 * Same as Write(), except `text' is prefixed with `:server.name '.
1033 void User::WriteServ(const char* text, ...)
1035 std::string textbuffer;
1036 VAFORMAT(textbuffer, text, text);
1037 this->WriteServ(textbuffer);
1040 void User::WriteNotice(const std::string& text)
1042 this->WriteServ("NOTICE " + (this->registered == REG_ALL ? this->nick : "*") + " :" + text);
1045 void User::WriteNumeric(unsigned int numeric, const char* text, ...)
1047 std::string textbuffer;
1048 VAFORMAT(textbuffer, text, text);
1049 this->WriteNumeric(numeric, textbuffer);
1052 void User::WriteNumeric(unsigned int numeric, const std::string &text)
1054 char textbuffer[MAXBUF];
1055 ModResult MOD_RESULT;
1057 FIRST_MOD_RESULT(OnNumeric, MOD_RESULT, (this, numeric, text));
1059 if (MOD_RESULT == MOD_RES_DENY)
1062 snprintf(textbuffer,MAXBUF,":%s %03u %s",ServerInstance->Config->ServerName.c_str(), numeric, text.c_str());
1063 this->Write(std::string(textbuffer));
1066 void User::WriteFrom(User *user, const std::string &text)
1068 const std::string message = ":" + user->GetFullHost() + " " + text;
1069 this->Write(message);
1073 /* write text from an originating user to originating user */
1075 void User::WriteFrom(User *user, const char* text, ...)
1077 std::string textbuffer;
1078 VAFORMAT(textbuffer, text, text);
1079 this->WriteFrom(user, textbuffer);
1083 /* write text to an destination user from a source user (e.g. user privmsg) */
1085 void User::WriteTo(User *dest, const char *data, ...)
1087 std::string textbuffer;
1088 VAFORMAT(textbuffer, data, data);
1089 this->WriteTo(dest, textbuffer);
1092 void User::WriteTo(User *dest, const std::string &data)
1094 dest->WriteFrom(this, data);
1097 void User::WriteCommon(const char* text, ...)
1099 if (this->registered != REG_ALL || quitting)
1102 std::string textbuffer;
1103 VAFORMAT(textbuffer, text, text);
1104 textbuffer = ":" + this->GetFullHost() + " " + textbuffer;
1105 this->WriteCommonRaw(textbuffer, true);
1108 void User::WriteCommonExcept(const char* text, ...)
1110 if (this->registered != REG_ALL || quitting)
1113 std::string textbuffer;
1114 VAFORMAT(textbuffer, text, text);
1115 textbuffer = ":" + this->GetFullHost() + " " + textbuffer;
1116 this->WriteCommonRaw(textbuffer, false);
1119 void User::WriteCommonRaw(const std::string &line, bool include_self)
1121 if (this->registered != REG_ALL || quitting)
1124 LocalUser::already_sent_id++;
1126 UserChanList include_c(chans);
1127 std::map<User*,bool> exceptions;
1129 exceptions[this] = include_self;
1131 FOREACH_MOD(I_OnBuildNeighborList,OnBuildNeighborList(this, include_c, exceptions));
1133 for (std::map<User*,bool>::iterator i = exceptions.begin(); i != exceptions.end(); ++i)
1135 LocalUser* u = IS_LOCAL(i->first);
1136 if (u && !u->quitting)
1138 u->already_sent = LocalUser::already_sent_id;
1143 for (UCListIter v = include_c.begin(); v != include_c.end(); ++v)
1146 const UserMembList* ulist = c->GetUsers();
1147 for (UserMembList::const_iterator i = ulist->begin(); i != ulist->end(); i++)
1149 LocalUser* u = IS_LOCAL(i->first);
1150 if (u && !u->quitting && u->already_sent != LocalUser::already_sent_id)
1152 u->already_sent = LocalUser::already_sent_id;
1159 void User::WriteCommonQuit(const std::string &normal_text, const std::string &oper_text)
1161 if (this->registered != REG_ALL)
1164 already_sent_t uniq_id = ++LocalUser::already_sent_id;
1166 const std::string normalMessage = ":" + this->GetFullHost() + " QUIT :" + normal_text;
1167 const std::string operMessage = ":" + this->GetFullHost() + " QUIT :" + oper_text;
1169 UserChanList include_c(chans);
1170 std::map<User*,bool> exceptions;
1172 FOREACH_MOD(I_OnBuildNeighborList,OnBuildNeighborList(this, include_c, exceptions));
1174 for (std::map<User*,bool>::iterator i = exceptions.begin(); i != exceptions.end(); ++i)
1176 LocalUser* u = IS_LOCAL(i->first);
1177 if (u && !u->quitting)
1179 u->already_sent = uniq_id;
1181 u->Write(u->IsOper() ? operMessage : normalMessage);
1184 for (UCListIter v = include_c.begin(); v != include_c.end(); ++v)
1186 const UserMembList* ulist = (*v)->GetUsers();
1187 for (UserMembList::const_iterator i = ulist->begin(); i != ulist->end(); i++)
1189 LocalUser* u = IS_LOCAL(i->first);
1190 if (u && !u->quitting && (u->already_sent != uniq_id))
1192 u->already_sent = uniq_id;
1193 u->Write(u->IsOper() ? operMessage : normalMessage);
1199 void LocalUser::SendText(const std::string& line)
1204 void RemoteUser::SendText(const std::string& line)
1206 ServerInstance->PI->PushToClient(this, line);
1209 void FakeUser::SendText(const std::string& line)
1213 void User::SendText(const char *text, ...)
1216 VAFORMAT(line, text, text);
1220 void User::SendText(const std::string &LinePrefix, std::stringstream &TextStream)
1223 int start_pos = LinePrefix.length();
1224 int pos = start_pos;
1225 memcpy(line, LinePrefix.data(), pos);
1227 while (TextStream >> Word)
1229 int len = Word.length();
1230 if (pos + len + 12 > MAXBUF)
1233 SendText(std::string(line));
1237 memcpy(line + pos + 1, Word.data(), len);
1241 SendText(std::string(line));
1244 /* return 0 or 1 depending if users u and u2 share one or more common channels
1245 * (used by QUIT, NICK etc which arent channel specific notices)
1247 * The old algorithm in 1.0 for this was relatively inefficient, iterating over
1248 * the first users channels then the second users channels within the outer loop,
1249 * therefore it was a maximum of x*y iterations (upon returning 0 and checking
1250 * all possible iterations). However this new function instead checks against the
1251 * channel's userlist in the inner loop which is a std::map<User*,User*>
1252 * and saves us time as we already know what pointer value we are after.
1253 * Don't quote me on the maths as i am not a mathematician or computer scientist,
1254 * but i believe this algorithm is now x+(log y) maximum iterations instead.
1256 bool User::SharesChannelWith(User *other)
1258 if ((!other) || (this->registered != REG_ALL) || (other->registered != REG_ALL))
1262 for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
1264 /* Eliminate the inner loop (which used to be ~equal in size to the outer loop)
1265 * by replacing it with a map::find which *should* be more efficient
1267 if ((*i)->HasUser(other))
1273 bool User::ChangeName(const char* gecos)
1275 if (!this->fullname.compare(gecos))
1280 ModResult MOD_RESULT;
1281 FIRST_MOD_RESULT(OnChangeLocalUserGECOS, MOD_RESULT, (IS_LOCAL(this),gecos));
1282 if (MOD_RESULT == MOD_RES_DENY)
1284 FOREACH_MOD(I_OnChangeName,OnChangeName(this,gecos));
1286 this->fullname.assign(gecos, 0, ServerInstance->Config->Limits.MaxGecos);
1291 void User::DoHostCycle(const std::string &quitline)
1293 if (!ServerInstance->Config->CycleHosts)
1296 already_sent_t silent_id = ++LocalUser::already_sent_id;
1297 already_sent_t seen_id = ++LocalUser::already_sent_id;
1299 UserChanList include_c(chans);
1300 std::map<User*,bool> exceptions;
1302 FOREACH_MOD(I_OnBuildNeighborList,OnBuildNeighborList(this, include_c, exceptions));
1304 for (std::map<User*,bool>::iterator i = exceptions.begin(); i != exceptions.end(); ++i)
1306 LocalUser* u = IS_LOCAL(i->first);
1307 if (u && !u->quitting)
1311 u->already_sent = seen_id;
1316 u->already_sent = silent_id;
1320 for (UCListIter v = include_c.begin(); v != include_c.end(); ++v)
1323 Membership* memb = c->GetUser(this);
1324 const std::string joinline = ":" + GetFullHost() + " JOIN " + c->name;
1325 std::string modeline;
1327 if (!memb->modes.empty())
1329 modeline = ":" + (ServerInstance->Config->CycleHostsFromUser ? GetFullHost() : ServerInstance->Config->ServerName)
1330 + " MODE " + c->name + " +" + memb->modes;
1332 for (size_t i = 0; i < memb->modes.length(); i++)
1333 modeline.append(" ").append(nick);
1336 const UserMembList *ulist = c->GetUsers();
1337 for (UserMembList::const_iterator i = ulist->begin(); i != ulist->end(); i++)
1339 LocalUser* u = IS_LOCAL(i->first);
1340 if (u == NULL || u == this)
1342 if (u->already_sent == silent_id)
1345 if (u->already_sent != seen_id)
1348 u->already_sent = seen_id;
1351 if (!memb->modes.empty())
1357 bool User::ChangeDisplayedHost(const char* shost)
1364 ModResult MOD_RESULT;
1365 FIRST_MOD_RESULT(OnChangeLocalUserHost, MOD_RESULT, (IS_LOCAL(this),shost));
1366 if (MOD_RESULT == MOD_RES_DENY)
1370 FOREACH_MOD(I_OnChangeHost, OnChangeHost(this,shost));
1372 std::string quitstr = ":" + GetFullHost() + " QUIT :Changing host";
1374 /* Fix by Om: User::dhost is 65 long, this was truncating some long hosts */
1375 this->dhost.assign(shost, 0, 64);
1377 this->InvalidateCache();
1379 this->DoHostCycle(quitstr);
1382 this->WriteNumeric(RPL_YOURDISPLAYEDHOST, "%s %s :is now your displayed host",this->nick.c_str(),this->dhost.c_str());
1387 bool User::ChangeIdent(const char* newident)
1389 if (this->ident == newident)
1392 FOREACH_MOD(I_OnChangeIdent, OnChangeIdent(this,newident));
1394 std::string quitstr = ":" + GetFullHost() + " QUIT :Changing ident";
1396 this->ident.assign(newident, 0, ServerInstance->Config->Limits.IdentMax);
1398 this->InvalidateCache();
1400 this->DoHostCycle(quitstr);
1405 void User::SendAll(const char* command, const char* text, ...)
1407 std::string textbuffer;
1408 VAFORMAT(textbuffer, text, text);
1409 const std::string message = ":" + this->GetFullHost() + " " + command + " $* :" + textbuffer;
1411 for (LocalUserList::const_iterator i = ServerInstance->Users->local_users.begin(); i != ServerInstance->Users->local_users.end(); i++)
1413 if ((*i)->registered == REG_ALL)
1414 (*i)->Write(message);
1419 * Sets a user's connection class.
1420 * If the class name is provided, it will be used. Otherwise, the class will be guessed using host/ip/ident/etc.
1421 * NOTE: If the <ALLOW> or <DENY> tag specifies an ip, and this user resolves,
1422 * then their ip will be taken as 'priority' anyway, so for example,
1423 * <connect allow="127.0.0.1"> will match joe!bloggs@localhost
1425 void LocalUser::SetClass(const std::string &explicit_name)
1427 ConnectClass *found = NULL;
1429 ServerInstance->Logs->Log("CONNECTCLASS", LOG_DEBUG, "Setting connect class for UID %s", this->uuid.c_str());
1431 if (!explicit_name.empty())
1433 for (ClassVector::iterator i = ServerInstance->Config->Classes.begin(); i != ServerInstance->Config->Classes.end(); i++)
1435 ConnectClass* c = *i;
1437 if (explicit_name == c->name)
1439 ServerInstance->Logs->Log("CONNECTCLASS", LOG_DEBUG, "Explicitly set to %s", explicit_name.c_str());
1446 for (ClassVector::iterator i = ServerInstance->Config->Classes.begin(); i != ServerInstance->Config->Classes.end(); i++)
1448 ConnectClass* c = *i;
1449 ServerInstance->Logs->Log("CONNECTCLASS", LOG_DEBUG, "Checking %s", c->GetName().c_str());
1451 ModResult MOD_RESULT;
1452 FIRST_MOD_RESULT(OnSetConnectClass, MOD_RESULT, (this,c));
1453 if (MOD_RESULT == MOD_RES_DENY)
1455 if (MOD_RESULT == MOD_RES_ALLOW)
1457 ServerInstance->Logs->Log("CONNECTCLASS", LOG_DEBUG, "Class forced by module to %s", c->GetName().c_str());
1462 if (c->type == CC_NAMED)
1465 bool regdone = (registered != REG_NONE);
1466 if (c->config->getBool("registered", regdone) != regdone)
1469 /* check if host matches.. */
1470 if (!InspIRCd::MatchCIDR(this->GetIPString(), c->GetHost(), NULL) &&
1471 !InspIRCd::MatchCIDR(this->host, c->GetHost(), NULL))
1473 ServerInstance->Logs->Log("CONNECTCLASS", LOG_DEBUG, "No host match (for %s)", c->GetHost().c_str());
1478 * deny change if change will take class over the limit check it HERE, not after we found a matching class,
1479 * because we should attempt to find another class if this one doesn't match us. -- w00t
1481 if (c->limit && (c->GetReferenceCount() >= c->limit))
1483 ServerInstance->Logs->Log("CONNECTCLASS", LOG_DEBUG, "OOPS: Connect class limit (%lu) hit, denying", c->limit);
1487 /* if it requires a port ... */
1488 int port = c->config->getInt("port");
1491 ServerInstance->Logs->Log("CONNECTCLASS", LOG_DEBUG, "Requires port (%d)", port);
1493 /* and our port doesn't match, fail. */
1494 if (this->GetServerPort() != port)
1498 if (regdone && !c->config->getString("password").empty())
1500 if (ServerInstance->PassCompare(this, c->config->getString("password"), password, c->config->getString("hash")))
1502 ServerInstance->Logs->Log("CONNECTCLASS", LOG_DEBUG, "Bad password, skipping");
1507 /* we stop at the first class that meets ALL critera. */
1514 * Okay, assuming we found a class that matches.. switch us into that class, keeping refcounts up to date.
1522 /* looks up a users password for their connection class (<ALLOW>/<DENY> tags)
1523 * NOTE: If the <ALLOW> or <DENY> tag specifies an ip, and this user resolves,
1524 * then their ip will be taken as 'priority' anyway, so for example,
1525 * <connect allow="127.0.0.1"> will match joe!bloggs@localhost
1527 ConnectClass* LocalUser::GetClass()
1532 ConnectClass* User::GetClass()
1537 void User::PurgeEmptyChannels()
1539 // firstly decrement the count on each channel
1540 for (UCListIter f = this->chans.begin(); f != this->chans.end(); f++)
1549 const std::string& FakeUser::GetFullHost()
1551 if (!ServerInstance->Config->HideWhoisServer.empty())
1552 return ServerInstance->Config->HideWhoisServer;
1556 const std::string& FakeUser::GetFullRealHost()
1558 if (!ServerInstance->Config->HideWhoisServer.empty())
1559 return ServerInstance->Config->HideWhoisServer;
1563 ConnectClass::ConnectClass(ConfigTag* tag, char t, const std::string& mask)
1564 : config(tag), type(t), fakelag(true), name("unnamed"), registration_timeout(0), host(mask),
1565 pingtime(0), softsendqmax(0), hardsendqmax(0), recvqmax(0),
1566 penaltythreshold(0), commandrate(0), maxlocal(0), maxglobal(0), maxconnwarn(true), maxchans(0),
1567 limit(0), nouserdns(false)
1571 ConnectClass::ConnectClass(ConfigTag* tag, char t, const std::string& mask, const ConnectClass& parent)
1572 : config(tag), type(t), fakelag(parent.fakelag), name("unnamed"),
1573 registration_timeout(parent.registration_timeout), host(mask), pingtime(parent.pingtime),
1574 softsendqmax(parent.softsendqmax), hardsendqmax(parent.hardsendqmax), recvqmax(parent.recvqmax),
1575 penaltythreshold(parent.penaltythreshold), commandrate(parent.commandrate),
1576 maxlocal(parent.maxlocal), maxglobal(parent.maxglobal), maxconnwarn(parent.maxconnwarn), maxchans(parent.maxchans),
1577 limit(parent.limit), nouserdns(parent.nouserdns)
1581 void ConnectClass::Update(const ConnectClass* src)
1583 config = src->config;
1585 fakelag = src->fakelag;
1587 registration_timeout = src->registration_timeout;
1589 pingtime = src->pingtime;
1590 softsendqmax = src->softsendqmax;
1591 hardsendqmax = src->hardsendqmax;
1592 recvqmax = src->recvqmax;
1593 penaltythreshold = src->penaltythreshold;
1594 commandrate = src->commandrate;
1595 maxlocal = src->maxlocal;
1596 maxglobal = src->maxglobal;
1597 maxconnwarn = src->maxconnwarn;
1598 maxchans = src->maxchans;
1600 nouserdns = src->nouserdns;