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 void LocalUser::StartDNSLookup()
116 UserResolver *res_reverse;
118 QueryType resolvtype = this->client_sa.sa.sa_family == AF_INET6 ? DNS_QUERY_PTR6 : DNS_QUERY_PTR4;
119 res_reverse = new UserResolver(this, this->GetIPString(), resolvtype, cached);
121 ServerInstance->AddResolver(res_reverse, cached);
123 catch (CoreException& e)
125 ServerInstance->Logs->Log("USERS", DEBUG,"Error in resolver: %s",e.GetReason());
127 ServerInstance->stats->statsDnsBad++;
131 bool User::IsNoticeMaskSet(unsigned char sm)
135 return (snomasks[sm-65]);
138 void User::SetNoticeMask(unsigned char sm, bool value)
142 snomasks[sm-65] = value;
145 const char* User::FormatNoticeMasks()
147 static char data[MAXBUF];
150 for (int n = 0; n < 64; n++)
153 data[offset++] = n+65;
160 bool User::IsModeSet(unsigned char m)
164 return (modes[m-65]);
167 void User::SetMode(unsigned char m, bool value)
174 const char* User::FormatModes(bool showparameters)
176 static char data[MAXBUF];
180 for (unsigned char n = 0; n < 64; n++)
184 data[offset++] = n + 65;
185 ModeHandler* mh = ServerInstance->Modes->FindMode(n + 65, MODETYPE_USER);
186 if (showparameters && mh && mh->GetNumParams(true))
188 std::string p = mh->GetUserParameter(this);
190 params.append(" ").append(p);
195 strlcat(data, params.c_str(), MAXBUF);
199 User::User(const std::string &uid, const std::string& sid, int type)
200 : uuid(uid), server(sid), usertype(type)
202 age = ServerInstance->Time();
205 quietquit = quitting = false;
206 client_sa.sa.sa_family = AF_UNSPEC;
208 ServerInstance->Logs->Log("USERS", DEBUG, "New UUID for user: %s", uuid.c_str());
210 user_hash::iterator finduuid = ServerInstance->Users->uuidlist->find(uuid);
211 if (finduuid == ServerInstance->Users->uuidlist->end())
212 (*ServerInstance->Users->uuidlist)[uuid] = this;
214 throw CoreException("Duplicate UUID "+std::string(uuid)+" in User constructor");
217 LocalUser::LocalUser(int myfd, irc::sockets::sockaddrs* client, irc::sockets::sockaddrs* servaddr)
218 : User(ServerInstance->GetUID(), ServerInstance->Config->ServerName, USERTYPE_LOCAL), eh(this),
219 localuseriter(ServerInstance->Users->local_users.end()),
220 bytes_in(0), bytes_out(0), cmds_in(0), cmds_out(0), nping(0), CommandFloodPenalty(0),
223 exempt = quitting_sendq = dns_done = false;
228 memcpy(&client_sa, client, sizeof(irc::sockets::sockaddrs));
229 memcpy(&server_sa, servaddr, sizeof(irc::sockets::sockaddrs));
230 dhost = host = GetIPString();
235 if (ServerInstance->Users->uuidlist->find(uuid) != ServerInstance->Users->uuidlist->end())
236 ServerInstance->Logs->Log("USERS", DEFAULT, "User destructor for %s called without cull", uuid.c_str());
239 const std::string& User::MakeHost()
241 if (!this->cached_makehost.empty())
242 return this->cached_makehost;
245 /* This is much faster than snprintf */
247 for(const char* n = ident.c_str(); *n; n++)
250 for(const char* n = host.c_str(); *n; n++)
254 this->cached_makehost.assign(nhost);
256 return this->cached_makehost;
259 const std::string& User::MakeHostIP()
261 if (!this->cached_hostip.empty())
262 return this->cached_hostip;
265 /* This is much faster than snprintf */
267 for(const char* n = ident.c_str(); *n; n++)
270 for(const char* n = this->GetIPString().c_str(); *n; n++)
274 this->cached_hostip = ihost;
276 return this->cached_hostip;
279 const std::string& User::GetFullHost()
281 if (!this->cached_fullhost.empty())
282 return this->cached_fullhost;
286 for(const char* n = nick.c_str(); *n; n++)
289 for(const char* n = ident.c_str(); *n; n++)
292 for(const char* n = dhost.c_str(); *n; n++)
296 this->cached_fullhost = result;
298 return this->cached_fullhost;
301 char* User::MakeWildHost()
303 static char nresult[MAXBUF];
305 *t++ = '*'; *t++ = '!';
306 *t++ = '*'; *t++ = '@';
307 for(const char* n = dhost.c_str(); *n; n++)
313 const std::string& User::GetFullRealHost()
315 if (!this->cached_fullrealhost.empty())
316 return this->cached_fullrealhost;
318 char fresult[MAXBUF];
320 for(const char* n = nick.c_str(); *n; n++)
323 for(const char* n = ident.c_str(); *n; n++)
326 for(const char* n = host.c_str(); *n; n++)
330 this->cached_fullrealhost = fresult;
332 return this->cached_fullrealhost;
335 bool LocalUser::IsInvited(const irc::string &channel)
337 Channel* chan = ServerInstance->FindChan(channel.c_str());
341 return (Invitation::Find(chan, this) != NULL);
344 InviteList& LocalUser::GetInviteList()
346 RemoveExpiredInvites();
350 void LocalUser::InviteTo(const irc::string &channel, time_t invtimeout)
352 Channel* chan = ServerInstance->FindChan(channel.c_str());
354 Invitation::Create(chan, this, invtimeout);
357 void LocalUser::RemoveInvite(const irc::string &channel)
359 Channel* chan = ServerInstance->FindChan(channel.c_str());
362 Invitation* inv = Invitation::Find(chan, this);
371 void LocalUser::RemoveExpiredInvites()
373 Invitation::Find(NULL, this);
376 bool User::HasModePermission(unsigned char, ModeType)
381 bool LocalUser::HasModePermission(unsigned char mode, ModeType type)
386 if (mode < 'A' || mode > ('A' + 64)) return false;
388 return ((type == MODETYPE_USER ? oper->AllowedUserModes : oper->AllowedChanModes))[(mode - 'A')];
392 * users on remote servers can completely bypass all permissions based checks.
393 * This prevents desyncs when one server has different type/class tags to another.
394 * That having been said, this does open things up to the possibility of source changes
395 * allowing remote kills, etc - but if they have access to the src, they most likely have
396 * access to the conf - so it's an end to a means either way.
398 bool User::HasPermission(const std::string&)
403 bool LocalUser::HasPermission(const std::string &command)
405 // are they even an oper at all?
411 if (oper->AllowedOperCommands.find(command) != oper->AllowedOperCommands.end())
413 else if (oper->AllowedOperCommands.find("*") != oper->AllowedOperCommands.end())
419 bool User::HasPrivPermission(const std::string &privstr, bool noisy)
424 bool LocalUser::HasPrivPermission(const std::string &privstr, bool noisy)
429 this->WriteServ("NOTICE %s :You are not an oper", this->nick.c_str());
433 if (oper->AllowedPrivs.find(privstr) != oper->AllowedPrivs.end())
437 else if (oper->AllowedPrivs.find("*") != oper->AllowedPrivs.end())
443 this->WriteServ("NOTICE %s :Oper type %s does not have access to priv %s", this->nick.c_str(), oper->NameStr(), privstr.c_str());
447 void UserIOHandler::OnDataReady()
452 if (recvq.length() > user->MyClass->GetRecvqMax() && !user->HasPrivPermission("users/flood/increased-buffers"))
454 ServerInstance->Users->QuitUser(user, "RecvQ exceeded");
455 ServerInstance->SNO->WriteToSnoMask('a', "User %s RecvQ of %lu exceeds connect class maximum of %lu",
456 user->nick.c_str(), (unsigned long)recvq.length(), user->MyClass->GetRecvqMax());
458 unsigned long sendqmax = ULONG_MAX;
459 if (!user->HasPrivPermission("users/flood/increased-buffers"))
460 sendqmax = user->MyClass->GetSendqSoftMax();
461 unsigned long penaltymax = ULONG_MAX;
462 if (!user->HasPrivPermission("users/flood/no-fakelag"))
463 penaltymax = user->MyClass->GetPenaltyThreshold() * 1000;
465 while (user->CommandFloodPenalty < penaltymax && getSendQSize() < sendqmax)
468 line.reserve(MAXBUF);
469 std::string::size_type qpos = 0;
470 while (qpos < recvq.length())
472 char c = recvq[qpos++];
483 if (line.length() < MAXBUF - 2)
486 // if we got here, the recvq ran out before we found a newline
489 // just found a newline. Terminate the string, and pull it out of recvq
490 recvq = recvq.substr(qpos);
492 // TODO should this be moved to when it was inserted in recvq?
493 ServerInstance->stats->statsRecv += qpos;
494 user->bytes_in += qpos;
497 ServerInstance->Parser->ProcessBuffer(line, user);
501 if (user->CommandFloodPenalty >= penaltymax && !user->MyClass->fakelag)
502 ServerInstance->Users->QuitUser(user, "Excess Flood");
505 void UserIOHandler::AddWriteBuf(const std::string &data)
507 if (user->quitting_sendq)
509 if (!user->quitting && getSendQSize() + data.length() > user->MyClass->GetSendqHardMax() &&
510 !user->HasPrivPermission("users/flood/increased-buffers"))
512 user->quitting_sendq = true;
513 ServerInstance->GlobalCulls.AddSQItem(user);
517 // We still want to append data to the sendq of a quitting user,
518 // e.g. their ERROR message that says 'closing link'
523 void UserIOHandler::OnError(BufferedSocketError)
525 ServerInstance->Users->QuitUser(user, getError());
528 CullResult User::cull()
531 ServerInstance->Users->QuitUser(this, "Culled without QuitUser");
532 PurgeEmptyChannels();
534 if (client_sa.sa.sa_family != AF_UNSPEC)
535 ServerInstance->Users->RemoveCloneCounts(this);
537 return Extensible::cull();
540 CullResult LocalUser::cull()
542 // The iterator is initialized to local_users.end() in the constructor. It is
543 // overwritten in UserManager::AddUser() with the real iterator so this check
544 // is only a precaution currently.
545 if (localuseriter != ServerInstance->Users->local_users.end())
546 ServerInstance->Users->local_users.erase(localuseriter);
553 CullResult FakeUser::cull()
555 // Fake users don't quit, they just get culled.
557 ServerInstance->Users->clientlist->erase(nick);
558 ServerInstance->Users->uuidlist->erase(uuid);
562 void User::Oper(OperInfo* info)
564 if (this->IsModeSet('o'))
567 this->modes[UM_OPERATOR] = 1;
569 this->WriteServ("MODE %s :+o", this->nick.c_str());
570 FOREACH_MOD(I_OnOper, OnOper(this, info->name));
572 std::string opername;
573 if (info->oper_block)
574 opername = info->oper_block->getString("name");
578 LocalUser* l = IS_LOCAL(this);
579 std::string vhost = oper->getConfig("vhost");
581 l->ChangeDisplayedHost(vhost.c_str());
582 std::string opClass = oper->getConfig("class");
583 if (!opClass.empty())
584 l->SetClass(opClass);
587 ServerInstance->SNO->WriteToSnoMask('o',"%s (%s@%s) is now an IRC operator of type %s (using oper '%s')",
588 nick.c_str(), ident.c_str(), host.c_str(), oper->NameStr(), opername.c_str());
589 this->WriteNumeric(381, "%s :You are now %s %s", nick.c_str(), strchr("aeiouAEIOU", oper->name[0]) ? "an" : "a", oper->NameStr());
591 ServerInstance->Logs->Log("OPER", DEFAULT, "%s opered as type: %s", GetFullRealHost().c_str(), oper->NameStr());
592 ServerInstance->Users->all_opers.push_back(this);
594 // Expand permissions from config for faster lookup
598 FOREACH_MOD(I_OnPostOper,OnPostOper(this, oper->name, opername));
601 void OperInfo::init()
603 AllowedOperCommands.clear();
604 AllowedPrivs.clear();
605 AllowedUserModes.reset();
606 AllowedChanModes.reset();
607 AllowedUserModes['o' - 'A'] = true; // Call me paranoid if you want.
609 for(std::vector<reference<ConfigTag> >::iterator iter = class_blocks.begin(); iter != class_blocks.end(); ++iter)
611 ConfigTag* tag = *iter;
612 std::string mycmd, mypriv;
613 /* Process commands */
614 irc::spacesepstream CommandList(tag->getString("commands"));
615 while (CommandList.GetToken(mycmd))
617 AllowedOperCommands.insert(mycmd);
620 irc::spacesepstream PrivList(tag->getString("privs"));
621 while (PrivList.GetToken(mypriv))
623 AllowedPrivs.insert(mypriv);
626 std::string modes = tag->getString("usermodes");
627 for (std::string::const_iterator c = modes.begin(); c != modes.end(); ++c)
631 this->AllowedUserModes.set();
633 else if (*c >= 'A' && *c < 'z')
635 this->AllowedUserModes[*c - 'A'] = true;
639 modes = tag->getString("chanmodes");
640 for (std::string::const_iterator c = modes.begin(); c != modes.end(); ++c)
644 this->AllowedChanModes.set();
646 else if (*c >= 'A' && *c < 'z')
648 this->AllowedChanModes[*c - 'A'] = true;
660 * unset their oper type (what IS_OPER checks).
661 * note, order is important - this must come before modes as -o attempts
662 * to call UnOper. -- w00t
667 /* Remove all oper only modes from the user when the deoper - Bug #466*/
668 std::string moderemove("-");
670 for (unsigned char letter = 'A'; letter <= 'z'; letter++)
672 ModeHandler* mh = ServerInstance->Modes->FindMode(letter, MODETYPE_USER);
673 if (mh && mh->NeedsOper())
674 moderemove += letter;
678 std::vector<std::string> parameters;
679 parameters.push_back(this->nick);
680 parameters.push_back(moderemove);
682 ServerInstance->Parser->CallHandler("MODE", parameters, this);
684 /* remove the user from the oper list. Will remove multiple entries as a safeguard against bug #404 */
685 ServerInstance->Users->all_opers.remove(this);
687 this->modes[UM_OPERATOR] = 0;
691 * Check class restrictions
693 void LocalUser::CheckClass()
695 ConnectClass* a = this->MyClass;
699 ServerInstance->Users->QuitUser(this, "Access denied by configuration");
702 else if (a->type == CC_DENY)
704 ServerInstance->Users->QuitUser(this, a->config->getString("reason", "Unauthorised connection"));
707 else if ((a->GetMaxLocal()) && (ServerInstance->Users->LocalCloneCount(this) > a->GetMaxLocal()))
709 ServerInstance->Users->QuitUser(this, "No more connections allowed from your host via this connect class (local)");
711 ServerInstance->SNO->WriteToSnoMask('a', "WARNING: maximum LOCAL connections (%ld) exceeded for IP %s", a->GetMaxLocal(), this->GetIPString().c_str());
714 else if ((a->GetMaxGlobal()) && (ServerInstance->Users->GlobalCloneCount(this) > a->GetMaxGlobal()))
716 ServerInstance->Users->QuitUser(this, "No more connections allowed from your host via this connect class (global)");
718 ServerInstance->SNO->WriteToSnoMask('a', "WARNING: maximum GLOBAL connections (%ld) exceeded for IP %s", a->GetMaxGlobal(), this->GetIPString().c_str());
722 this->nping = ServerInstance->Time() + a->GetPingTime() + ServerInstance->Config->dns_timeout;
725 bool LocalUser::CheckLines(bool doZline)
727 const char* check[] = { "G" , "K", (doZline) ? "Z" : NULL, NULL };
731 for (int n = 0; check[n]; ++n)
733 XLine *r = ServerInstance->XLines->MatchesLine(check[n], this);
746 void LocalUser::FullConnect()
748 ServerInstance->stats->statsConnects++;
749 this->idle_lastmsg = ServerInstance->Time();
752 * You may be thinking "wtf, we checked this in User::AddClient!" - and yes, we did, BUT.
753 * At the time AddClient is called, we don't have a resolved host, by here we probably do - which
754 * may put the user into a totally seperate class with different restrictions! so we *must* check again.
755 * Don't remove this! -- w00t
765 this->WriteNumeric(RPL_WELCOME, "%s :Welcome to the %s IRC Network %s",this->nick.c_str(), ServerInstance->Config->Network.c_str(), GetFullRealHost().c_str());
766 this->WriteNumeric(RPL_YOURHOSTIS, "%s :Your host is %s, running version %s",this->nick.c_str(),ServerInstance->Config->ServerName.c_str(),BRANCH);
767 this->WriteNumeric(RPL_SERVERCREATED, "%s :This server was created %s %s", this->nick.c_str(), __TIME__, __DATE__);
769 std::string umlist = ServerInstance->Modes->UserModeList();
770 std::string cmlist = ServerInstance->Modes->ChannelModeList();
771 std::string pmlist = ServerInstance->Modes->ParaModeList();
772 this->WriteNumeric(RPL_SERVERVERSION, "%s %s %s %s %s %s", this->nick.c_str(), ServerInstance->Config->ServerName.c_str(), BRANCH, umlist.c_str(), cmlist.c_str(), pmlist.c_str());
774 ServerInstance->Config->Send005(this);
775 this->WriteNumeric(RPL_YOURUUID, "%s %s :your unique ID", this->nick.c_str(), this->uuid.c_str());
778 if (ServerInstance->Users->unregistered_count)
779 ServerInstance->Users->unregistered_count--;
781 /* Trigger MOTD and LUSERS output, give modules a chance too */
782 ModResult MOD_RESULT;
783 std::string command("LUSERS");
784 std::vector<std::string> parameters;
785 FIRST_MOD_RESULT(OnPreCommand, MOD_RESULT, (command, parameters, this, true, command));
787 ServerInstance->Parser->CallHandler(command, parameters, this);
789 MOD_RESULT = MOD_RES_PASSTHRU;
791 FIRST_MOD_RESULT(OnPreCommand, MOD_RESULT, (command, parameters, this, true, command));
793 ServerInstance->Parser->CallHandler(command, parameters, this);
795 if (ServerInstance->Config->RawLog)
796 WriteServ("PRIVMSG %s :*** Raw I/O logging is enabled on this server. All messages, passwords, and commands are being recorded.", nick.c_str());
799 * We don't set REG_ALL until triggering OnUserConnect, so some module events don't spew out stuff
800 * for a user that doesn't exist yet.
802 FOREACH_MOD(I_OnUserConnect,OnUserConnect(this));
804 this->registered = REG_ALL;
806 FOREACH_MOD(I_OnPostConnect,OnPostConnect(this));
808 ServerInstance->SNO->WriteToSnoMask('c',"Client connecting on port %d (class %s): %s (%s) [%s]",
809 this->GetServerPort(), this->MyClass->name.c_str(), GetFullRealHost().c_str(), this->GetIPString().c_str(), this->fullname.c_str());
810 ServerInstance->Logs->Log("BANCACHE", DEBUG, "BanCache: Adding NEGATIVE hit for " + this->GetIPString());
811 ServerInstance->BanCache->AddHit(this->GetIPString(), "", "");
812 // reset the flood penalty (which could have been raised due to things like auto +x)
813 CommandFloodPenalty = 0;
816 void User::InvalidateCache()
818 /* Invalidate cache */
819 cached_fullhost.clear();
820 cached_hostip.clear();
821 cached_makehost.clear();
822 cached_fullrealhost.clear();
825 bool User::ChangeNick(const std::string& newnick, bool force)
827 ModResult MOD_RESULT;
830 ServerInstance->NICKForced.set(this, 1);
831 FIRST_MOD_RESULT(OnUserPreNick, MOD_RESULT, (this, newnick));
832 ServerInstance->NICKForced.set(this, 0);
834 if (MOD_RESULT == MOD_RES_DENY)
836 ServerInstance->stats->statsCollisions++;
840 if (assign(newnick) == assign(nick))
842 // case change, don't need to check Q:lines and such
843 // and, if it's identical including case, we can leave right now
850 * Don't check Q:Lines if it's a server-enforced change, just on the off-chance some fucking *moron*
851 * tries to Q:Line SIDs, also, this means we just get our way period, as it really should be.
852 * Thanks Kein for finding this. -- w00t
854 * Also don't check Q:Lines for remote nickchanges, they should have our Q:Lines anyway to enforce themselves.
857 if (IS_LOCAL(this) && !force)
859 XLine* mq = ServerInstance->XLines->MatchesLine("Q",newnick);
862 if (this->registered == REG_ALL)
864 ServerInstance->SNO->WriteGlobalSno('a', "Q-Lined nickname %s from %s: %s",
865 newnick.c_str(), GetFullRealHost().c_str(), mq->reason.c_str());
867 this->WriteNumeric(432, "%s %s :Invalid nickname: %s",this->nick.c_str(), newnick.c_str(), mq->reason.c_str());
871 if (ServerInstance->Config->RestrictBannedUsers)
873 for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
876 if (chan->GetPrefixValue(this) < VOICE_VALUE && chan->IsBanned(this))
878 this->WriteNumeric(404, "%s %s :Cannot send to channel (you're banned)", this->nick.c_str(), chan->name.c_str());
886 * Uh oh.. if the nickname is in use, and it's not in use by the person using it (doh) --
887 * then we have a potential collide. Check whether someone else is camping on the nick
888 * (i.e. connect -> send NICK, don't send USER.) If they are camping, force-change the
889 * camper to their UID, and allow the incoming nick change.
891 * If the guy using the nick is already using it, tell the incoming nick change to gtfo,
892 * because the nick is already (rightfully) in use. -- w00t
894 User* InUse = ServerInstance->FindNickOnly(newnick);
895 if (InUse && (InUse != this))
897 if (InUse->registered != REG_ALL)
899 /* force the camper to their UUID, and ask them to re-send a NICK. */
900 InUse->WriteTo(InUse, "NICK %s", InUse->uuid.c_str());
901 InUse->WriteNumeric(433, "%s %s :Nickname overruled.", InUse->nick.c_str(), InUse->nick.c_str());
903 ServerInstance->Users->clientlist->erase(InUse->nick);
904 (*(ServerInstance->Users->clientlist))[InUse->uuid] = InUse;
906 InUse->nick = InUse->uuid;
907 InUse->InvalidateCache();
908 InUse->registered &= ~REG_NICK;
912 /* No camping, tell the incoming user to stop trying to change nick ;p */
913 this->WriteNumeric(433, "%s %s :Nickname is already in use.", this->registered >= REG_NICK ? this->nick.c_str() : "*", newnick.c_str());
919 if (this->registered == REG_ALL)
920 this->WriteCommon("NICK %s",newnick.c_str());
921 std::string oldnick = nick;
925 ServerInstance->Users->clientlist->erase(oldnick);
926 (*(ServerInstance->Users->clientlist))[newnick] = this;
928 if (registered == REG_ALL)
929 FOREACH_MOD(I_OnUserPostNick,OnUserPostNick(this,oldnick));
934 int LocalUser::GetServerPort()
936 switch (this->server_sa.sa.sa_family)
939 return htons(this->server_sa.in6.sin6_port);
941 return htons(this->server_sa.in4.sin_port);
946 const std::string& User::GetIPString()
949 if (cachedip.empty())
951 irc::sockets::satoap(client_sa, cachedip, port);
952 /* IP addresses starting with a : on irc are a Bad Thing (tm) */
953 if (cachedip[0] == ':')
954 cachedip.insert(0,1,'0');
960 irc::sockets::cidr_mask User::GetCIDRMask()
963 switch (client_sa.sa.sa_family)
966 range = ServerInstance->Config->c_ipv6_range;
969 range = ServerInstance->Config->c_ipv4_range;
972 return irc::sockets::cidr_mask(client_sa, range);
975 bool User::SetClientIP(const char* sip, bool recheck_eline)
978 cached_hostip.clear();
979 return irc::sockets::aptosa(sip, 0, client_sa);
982 void User::SetClientIP(const irc::sockets::sockaddrs& sa, bool recheck_eline)
985 cached_hostip.clear();
986 memcpy(&client_sa, &sa, sizeof(irc::sockets::sockaddrs));
989 bool LocalUser::SetClientIP(const char* sip, bool recheck_eline)
991 irc::sockets::sockaddrs sa;
992 if (!irc::sockets::aptosa(sip, 0, sa))
996 LocalUser::SetClientIP(sa, recheck_eline);
1000 void LocalUser::SetClientIP(const irc::sockets::sockaddrs& sa, bool recheck_eline)
1002 if (sa != client_sa)
1004 User::SetClientIP(sa);
1006 this->exempt = (ServerInstance->XLines->MatchesLine("E", this) != NULL);
1008 FOREACH_MOD(I_OnSetUserIP,OnSetUserIP(this));
1012 static std::string wide_newline("\r\n");
1014 void User::Write(const std::string& text)
1018 void User::Write(const char *text, ...)
1022 void LocalUser::Write(const std::string& text)
1024 if (!ServerInstance->SE->BoundsCheckFd(&eh))
1027 if (text.length() > MAXBUF - 2)
1029 // this should happen rarely or never. Crop the string at 512 and try again.
1030 std::string try_again = text.substr(0, MAXBUF - 2);
1035 ServerInstance->Logs->Log("USEROUTPUT", RAWIO, "C[%s] O %s", uuid.c_str(), text.c_str());
1037 eh.AddWriteBuf(text);
1038 eh.AddWriteBuf(wide_newline);
1040 ServerInstance->stats->statsSent += text.length() + 2;
1041 this->bytes_out += text.length() + 2;
1047 void LocalUser::Write(const char *text, ...)
1050 char textbuffer[MAXBUF];
1052 va_start(argsPtr, text);
1053 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1056 this->Write(std::string(textbuffer));
1059 void User::WriteServ(const std::string& text)
1061 this->Write(":%s %s",ServerInstance->Config->ServerName.c_str(),text.c_str());
1065 * Same as Write(), except `text' is prefixed with `:server.name '.
1067 void User::WriteServ(const char* text, ...)
1070 char textbuffer[MAXBUF];
1072 va_start(argsPtr, text);
1073 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1076 this->WriteServ(std::string(textbuffer));
1080 void User::WriteNumeric(unsigned int numeric, const char* text, ...)
1083 char textbuffer[MAXBUF];
1085 va_start(argsPtr, text);
1086 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1089 this->WriteNumeric(numeric, std::string(textbuffer));
1092 void User::WriteNumeric(unsigned int numeric, const std::string &text)
1094 char textbuffer[MAXBUF];
1095 ModResult MOD_RESULT;
1097 FIRST_MOD_RESULT(OnNumeric, MOD_RESULT, (this, numeric, text));
1099 if (MOD_RESULT == MOD_RES_DENY)
1102 snprintf(textbuffer,MAXBUF,":%s %03u %s",ServerInstance->Config->ServerName.c_str(), numeric, text.c_str());
1103 this->Write(std::string(textbuffer));
1106 void User::WriteFrom(User *user, const std::string &text)
1110 snprintf(tb,MAXBUF,":%s %s",user->GetFullHost().c_str(),text.c_str());
1112 this->Write(std::string(tb));
1116 /* write text from an originating user to originating user */
1118 void User::WriteFrom(User *user, const char* text, ...)
1121 char textbuffer[MAXBUF];
1123 va_start(argsPtr, text);
1124 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1127 this->WriteFrom(user, std::string(textbuffer));
1131 /* write text to an destination user from a source user (e.g. user privmsg) */
1133 void User::WriteTo(User *dest, const char *data, ...)
1135 char textbuffer[MAXBUF];
1138 va_start(argsPtr, data);
1139 vsnprintf(textbuffer, MAXBUF, data, argsPtr);
1142 this->WriteTo(dest, std::string(textbuffer));
1145 void User::WriteTo(User *dest, const std::string &data)
1147 dest->WriteFrom(this, data);
1150 void User::WriteCommon(const char* text, ...)
1152 char textbuffer[MAXBUF];
1155 if (this->registered != REG_ALL || quitting)
1158 int len = snprintf(textbuffer,MAXBUF,":%s ",this->GetFullHost().c_str());
1160 va_start(argsPtr, text);
1161 vsnprintf(textbuffer + len, MAXBUF - len, text, argsPtr);
1164 this->WriteCommonRaw(std::string(textbuffer), true);
1167 void User::WriteCommonExcept(const char* text, ...)
1169 char textbuffer[MAXBUF];
1172 if (this->registered != REG_ALL || quitting)
1175 int len = snprintf(textbuffer,MAXBUF,":%s ",this->GetFullHost().c_str());
1177 va_start(argsPtr, text);
1178 vsnprintf(textbuffer + len, MAXBUF - len, text, argsPtr);
1181 this->WriteCommonRaw(std::string(textbuffer), false);
1184 void User::WriteCommonRaw(const std::string &line, bool include_self)
1186 if (this->registered != REG_ALL || quitting)
1189 LocalUser::already_sent_id++;
1191 UserChanList include_c(chans);
1192 std::map<User*,bool> exceptions;
1194 exceptions[this] = include_self;
1196 FOREACH_MOD(I_OnBuildNeighborList,OnBuildNeighborList(this, include_c, exceptions));
1198 for (std::map<User*,bool>::iterator i = exceptions.begin(); i != exceptions.end(); ++i)
1200 LocalUser* u = IS_LOCAL(i->first);
1201 if (u && !u->quitting)
1203 u->already_sent = LocalUser::already_sent_id;
1208 for (UCListIter v = include_c.begin(); v != include_c.end(); ++v)
1211 const UserMembList* ulist = c->GetUsers();
1212 for (UserMembList::const_iterator i = ulist->begin(); i != ulist->end(); i++)
1214 LocalUser* u = IS_LOCAL(i->first);
1215 if (u && !u->quitting && u->already_sent != LocalUser::already_sent_id)
1217 u->already_sent = LocalUser::already_sent_id;
1224 void User::WriteCommonQuit(const std::string &normal_text, const std::string &oper_text)
1229 if (this->registered != REG_ALL)
1232 already_sent_t uniq_id = ++LocalUser::already_sent_id;
1234 snprintf(tb1,MAXBUF,":%s QUIT :%s",this->GetFullHost().c_str(),normal_text.c_str());
1235 snprintf(tb2,MAXBUF,":%s QUIT :%s",this->GetFullHost().c_str(),oper_text.c_str());
1236 std::string out1 = tb1;
1237 std::string out2 = tb2;
1239 UserChanList include_c(chans);
1240 std::map<User*,bool> exceptions;
1242 FOREACH_MOD(I_OnBuildNeighborList,OnBuildNeighborList(this, include_c, exceptions));
1244 for (std::map<User*,bool>::iterator i = exceptions.begin(); i != exceptions.end(); ++i)
1246 LocalUser* u = IS_LOCAL(i->first);
1247 if (u && !u->quitting)
1249 u->already_sent = uniq_id;
1251 u->Write(IS_OPER(u) ? out2 : out1);
1254 for (UCListIter v = include_c.begin(); v != include_c.end(); ++v)
1256 const UserMembList* ulist = (*v)->GetUsers();
1257 for (UserMembList::const_iterator i = ulist->begin(); i != ulist->end(); i++)
1259 LocalUser* u = IS_LOCAL(i->first);
1260 if (u && !u->quitting && (u->already_sent != uniq_id))
1262 u->already_sent = uniq_id;
1263 u->Write(IS_OPER(u) ? out2 : out1);
1269 void LocalUser::SendText(const std::string& line)
1274 void RemoteUser::SendText(const std::string& line)
1276 ServerInstance->PI->PushToClient(this, line);
1279 void FakeUser::SendText(const std::string& line)
1283 void User::SendText(const char *text, ...)
1288 va_start(argsPtr, text);
1289 vsnprintf(line, MAXBUF, text, argsPtr);
1292 SendText(std::string(line));
1295 void User::SendText(const std::string &LinePrefix, std::stringstream &TextStream)
1298 int start_pos = LinePrefix.length();
1299 int pos = start_pos;
1300 memcpy(line, LinePrefix.data(), pos);
1302 while (TextStream >> Word)
1304 int len = Word.length();
1305 if (pos + len + 12 > MAXBUF)
1308 SendText(std::string(line));
1312 memcpy(line + pos + 1, Word.data(), len);
1316 SendText(std::string(line));
1319 /* return 0 or 1 depending if users u and u2 share one or more common channels
1320 * (used by QUIT, NICK etc which arent channel specific notices)
1322 * The old algorithm in 1.0 for this was relatively inefficient, iterating over
1323 * the first users channels then the second users channels within the outer loop,
1324 * therefore it was a maximum of x*y iterations (upon returning 0 and checking
1325 * all possible iterations). However this new function instead checks against the
1326 * channel's userlist in the inner loop which is a std::map<User*,User*>
1327 * and saves us time as we already know what pointer value we are after.
1328 * Don't quote me on the maths as i am not a mathematician or computer scientist,
1329 * but i believe this algorithm is now x+(log y) maximum iterations instead.
1331 bool User::SharesChannelWith(User *other)
1333 if ((!other) || (this->registered != REG_ALL) || (other->registered != REG_ALL))
1337 for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
1339 /* Eliminate the inner loop (which used to be ~equal in size to the outer loop)
1340 * by replacing it with a map::find which *should* be more efficient
1342 if ((*i)->HasUser(other))
1348 bool User::ChangeName(const char* gecos)
1350 if (!this->fullname.compare(gecos))
1355 ModResult MOD_RESULT;
1356 FIRST_MOD_RESULT(OnChangeLocalUserGECOS, MOD_RESULT, (IS_LOCAL(this),gecos));
1357 if (MOD_RESULT == MOD_RES_DENY)
1359 FOREACH_MOD(I_OnChangeName,OnChangeName(this,gecos));
1361 this->fullname.assign(gecos, 0, ServerInstance->Config->Limits.MaxGecos);
1366 void User::DoHostCycle(const std::string &quitline)
1368 char buffer[MAXBUF];
1370 if (!ServerInstance->Config->CycleHosts)
1373 already_sent_t silent_id = ++LocalUser::already_sent_id;
1374 already_sent_t seen_id = ++LocalUser::already_sent_id;
1376 UserChanList include_c(chans);
1377 std::map<User*,bool> exceptions;
1379 FOREACH_MOD(I_OnBuildNeighborList,OnBuildNeighborList(this, include_c, exceptions));
1381 for (std::map<User*,bool>::iterator i = exceptions.begin(); i != exceptions.end(); ++i)
1383 LocalUser* u = IS_LOCAL(i->first);
1384 if (u && !u->quitting)
1388 u->already_sent = seen_id;
1393 u->already_sent = silent_id;
1397 for (UCListIter v = include_c.begin(); v != include_c.end(); ++v)
1400 snprintf(buffer, MAXBUF, ":%s JOIN %s", GetFullHost().c_str(), c->name.c_str());
1401 std::string joinline(buffer);
1402 Membership* memb = c->GetUser(this);
1403 std::string modeline = memb->modes;
1404 if (modeline.length() > 0)
1406 for(unsigned int i=0; i < memb->modes.length(); i++)
1407 modeline.append(" ").append(nick);
1408 snprintf(buffer, MAXBUF, ":%s MODE %s +%s",
1409 ServerInstance->Config->CycleHostsFromUser ? GetFullHost().c_str() : ServerInstance->Config->ServerName.c_str(),
1410 c->name.c_str(), modeline.c_str());
1414 const UserMembList *ulist = c->GetUsers();
1415 for (UserMembList::const_iterator i = ulist->begin(); i != ulist->end(); i++)
1417 LocalUser* u = IS_LOCAL(i->first);
1418 if (u == NULL || u == this)
1420 if (u->already_sent == silent_id)
1423 if (u->already_sent != seen_id)
1426 u->already_sent = seen_id;
1429 if (modeline.length() > 0)
1435 bool User::ChangeDisplayedHost(const char* shost)
1442 ModResult MOD_RESULT;
1443 FIRST_MOD_RESULT(OnChangeLocalUserHost, MOD_RESULT, (IS_LOCAL(this),shost));
1444 if (MOD_RESULT == MOD_RES_DENY)
1448 FOREACH_MOD(I_OnChangeHost, OnChangeHost(this,shost));
1450 std::string quitstr = ":" + GetFullHost() + " QUIT :Changing host";
1452 /* Fix by Om: User::dhost is 65 long, this was truncating some long hosts */
1453 this->dhost.assign(shost, 0, 64);
1455 this->InvalidateCache();
1457 this->DoHostCycle(quitstr);
1460 this->WriteNumeric(RPL_YOURDISPLAYEDHOST, "%s %s :is now your displayed host",this->nick.c_str(),this->dhost.c_str());
1465 bool User::ChangeIdent(const char* newident)
1467 if (this->ident == newident)
1470 FOREACH_MOD(I_OnChangeIdent, OnChangeIdent(this,newident));
1472 std::string quitstr = ":" + GetFullHost() + " QUIT :Changing ident";
1474 this->ident.assign(newident, 0, ServerInstance->Config->Limits.IdentMax);
1476 this->InvalidateCache();
1478 this->DoHostCycle(quitstr);
1483 void User::SendAll(const char* command, const char* text, ...)
1485 char textbuffer[MAXBUF];
1486 char formatbuffer[MAXBUF];
1489 va_start(argsPtr, text);
1490 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1493 snprintf(formatbuffer,MAXBUF,":%s %s $* :%s", this->GetFullHost().c_str(), command, textbuffer);
1494 std::string fmt = formatbuffer;
1496 for (LocalUserList::const_iterator i = ServerInstance->Users->local_users.begin(); i != ServerInstance->Users->local_users.end(); i++)
1498 if ((*i)->registered == REG_ALL)
1504 std::string User::ChannelList(User* source, bool spy)
1508 for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
1511 /* If the target is the sender, neither +p nor +s is set, or
1512 * the channel contains the user, it is not a spy channel
1514 if (spy != (source == this || !(c->IsModeSet('p') || c->IsModeSet('s')) || c->HasUser(source)))
1515 list.append(c->GetPrefixChar(this)).append(c->name).append(" ");
1521 void User::SplitChanList(User* dest, const std::string &cl)
1524 std::ostringstream prefix;
1525 std::string::size_type start, pos, length;
1527 prefix << this->nick << " " << dest->nick << " :";
1528 line = prefix.str();
1529 int namelen = ServerInstance->Config->ServerName.length() + 6;
1531 for (start = 0; (pos = cl.find(' ', start)) != std::string::npos; start = pos+1)
1533 length = (pos == std::string::npos) ? cl.length() : pos;
1535 if (line.length() + namelen + length - start > 510)
1537 ServerInstance->SendWhoisLine(this, dest, 319, "%s", line.c_str());
1538 line = prefix.str();
1541 if(pos == std::string::npos)
1543 line.append(cl.substr(start, length - start));
1548 line.append(cl.substr(start, length - start + 1));
1552 if (line.length() != prefix.str().length())
1554 ServerInstance->SendWhoisLine(this, dest, 319, "%s", line.c_str());
1559 * Sets a user's connection class.
1560 * If the class name is provided, it will be used. Otherwise, the class will be guessed using host/ip/ident/etc.
1561 * NOTE: If the <ALLOW> or <DENY> tag specifies an ip, and this user resolves,
1562 * then their ip will be taken as 'priority' anyway, so for example,
1563 * <connect allow="127.0.0.1"> will match joe!bloggs@localhost
1565 void LocalUser::SetClass(const std::string &explicit_name)
1567 ConnectClass *found = NULL;
1569 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Setting connect class for UID %s", this->uuid.c_str());
1571 if (!explicit_name.empty())
1573 for (ClassVector::iterator i = ServerInstance->Config->Classes.begin(); i != ServerInstance->Config->Classes.end(); i++)
1575 ConnectClass* c = *i;
1577 if (explicit_name == c->name)
1579 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Explicitly set to %s", explicit_name.c_str());
1586 for (ClassVector::iterator i = ServerInstance->Config->Classes.begin(); i != ServerInstance->Config->Classes.end(); i++)
1588 ConnectClass* c = *i;
1589 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Checking %s", c->GetName().c_str());
1591 ModResult MOD_RESULT;
1592 FIRST_MOD_RESULT(OnSetConnectClass, MOD_RESULT, (this,c));
1593 if (MOD_RESULT == MOD_RES_DENY)
1595 if (MOD_RESULT == MOD_RES_ALLOW)
1597 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Class forced by module to %s", c->GetName().c_str());
1602 if (c->type == CC_NAMED)
1605 bool regdone = (registered != REG_NONE);
1606 if (c->config->getBool("registered", regdone) != regdone)
1609 /* check if host matches.. */
1610 if (!InspIRCd::MatchCIDR(this->GetIPString(), c->GetHost(), NULL) &&
1611 !InspIRCd::MatchCIDR(this->host, c->GetHost(), NULL))
1613 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "No host match (for %s)", c->GetHost().c_str());
1618 * deny change if change will take class over the limit check it HERE, not after we found a matching class,
1619 * because we should attempt to find another class if this one doesn't match us. -- w00t
1621 if (c->limit && (c->GetReferenceCount() >= c->limit))
1623 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "OOPS: Connect class limit (%lu) hit, denying", c->limit);
1627 /* if it requires a port ... */
1628 int port = c->config->getInt("port");
1631 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Requires port (%d)", port);
1633 /* and our port doesn't match, fail. */
1634 if (this->GetServerPort() != port)
1638 if (regdone && !c->config->getString("password").empty())
1640 if (ServerInstance->PassCompare(this, c->config->getString("password"), password, c->config->getString("hash")))
1642 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Bad password, skipping");
1647 /* we stop at the first class that meets ALL critera. */
1654 * Okay, assuming we found a class that matches.. switch us into that class, keeping refcounts up to date.
1662 /* looks up a users password for their connection class (<ALLOW>/<DENY> tags)
1663 * NOTE: If the <ALLOW> or <DENY> tag specifies an ip, and this user resolves,
1664 * then their ip will be taken as 'priority' anyway, so for example,
1665 * <connect allow="127.0.0.1"> will match joe!bloggs@localhost
1667 ConnectClass* LocalUser::GetClass()
1672 ConnectClass* User::GetClass()
1677 void User::PurgeEmptyChannels()
1679 // firstly decrement the count on each channel
1680 for (UCListIter f = this->chans.begin(); f != this->chans.end(); f++)
1689 const std::string& FakeUser::GetFullHost()
1691 if (!ServerInstance->Config->HideWhoisServer.empty())
1692 return ServerInstance->Config->HideWhoisServer;
1696 const std::string& FakeUser::GetFullRealHost()
1698 if (!ServerInstance->Config->HideWhoisServer.empty())
1699 return ServerInstance->Config->HideWhoisServer;
1703 ConnectClass::ConnectClass(ConfigTag* tag, char t, const std::string& mask)
1704 : config(tag), type(t), fakelag(true), name("unnamed"), registration_timeout(0), host(mask),
1705 pingtime(0), softsendqmax(0), hardsendqmax(0), recvqmax(0),
1706 penaltythreshold(0), commandrate(0), maxlocal(0), maxglobal(0), maxconnwarn(true), maxchans(0), limit(0)
1710 ConnectClass::ConnectClass(ConfigTag* tag, char t, const std::string& mask, const ConnectClass& parent)
1711 : config(tag), type(t), fakelag(parent.fakelag), name("unnamed"),
1712 registration_timeout(parent.registration_timeout), host(mask), pingtime(parent.pingtime),
1713 softsendqmax(parent.softsendqmax), hardsendqmax(parent.hardsendqmax), recvqmax(parent.recvqmax),
1714 penaltythreshold(parent.penaltythreshold), commandrate(parent.commandrate),
1715 maxlocal(parent.maxlocal), maxglobal(parent.maxglobal), maxconnwarn(parent.maxconnwarn), maxchans(parent.maxchans),
1720 void ConnectClass::Update(const ConnectClass* src)
1722 config = src->config;
1724 fakelag = src->fakelag;
1726 registration_timeout = src->registration_timeout;
1728 pingtime = src->pingtime;
1729 softsendqmax = src->softsendqmax;
1730 hardsendqmax = src->hardsendqmax;
1731 recvqmax = src->recvqmax;
1732 penaltythreshold = src->penaltythreshold;
1733 commandrate = src->commandrate;
1734 maxlocal = src->maxlocal;
1735 maxglobal = src->maxglobal;
1736 maxconnwarn = src->maxconnwarn;
1737 maxchans = src->maxchans;