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"
31 #include "commands/cmd_whowas.h"
33 already_sent_t LocalUser::already_sent_id = 0;
35 std::string User::ProcessNoticeMasks(const char *sm)
37 bool adding = true, oldadding = false;
52 for (unsigned char d = 'a'; d <= 'z'; d++)
54 if (!ServerInstance->SNO->masks[d - 'a'].Description.empty())
56 if ((!IsNoticeMaskSet(d) && adding) || (IsNoticeMaskSet(d) && !adding))
58 if ((oldadding != adding) || (!output.length()))
59 output += (adding ? '+' : '-');
61 this->SetNoticeMask(d, adding);
67 if ((!IsNoticeMaskSet(u) && adding) || (IsNoticeMaskSet(u) && !adding))
69 if ((oldadding != adding) || (!output.length()))
70 output += (adding ? '+' : '-');
72 this->SetNoticeMask(u, adding);
83 if ((!IsNoticeMaskSet(*c) && adding) || (IsNoticeMaskSet(*c) && !adding))
85 if ((oldadding != adding) || (!output.length()))
86 output += (adding ? '+' : '-');
88 this->SetNoticeMask(*c, adding);
95 this->WriteNumeric(ERR_UNKNOWNSNOMASK, "%s %c :is unknown snomask char to me", this->nick.c_str(), *c);
103 std::string s = this->FormatNoticeMasks();
106 this->modes[UM_SNOMASK] = false;
112 void LocalUser::StartDNSLookup()
117 const char* sip = this->GetIPString();
118 UserResolver *res_reverse;
120 QueryType resolvtype = this->client_sa.sa.sa_family == AF_INET6 ? DNS_QUERY_PTR6 : DNS_QUERY_PTR4;
121 res_reverse = new UserResolver(this, sip, resolvtype, cached);
123 ServerInstance->AddResolver(res_reverse, cached);
125 catch (CoreException& e)
127 ServerInstance->Logs->Log("USERS", DEBUG,"Error in resolver: %s",e.GetReason());
129 ServerInstance->stats->statsDnsBad++;
133 bool User::IsNoticeMaskSet(unsigned char sm)
137 return (snomasks[sm-65]);
140 void User::SetNoticeMask(unsigned char sm, bool value)
144 snomasks[sm-65] = value;
147 const char* User::FormatNoticeMasks()
149 static char data[MAXBUF];
152 for (int n = 0; n < 64; n++)
155 data[offset++] = n+65;
162 bool User::IsModeSet(unsigned char m)
166 return (modes[m-65]);
169 void User::SetMode(unsigned char m, bool value)
176 const char* User::FormatModes(bool showparameters)
178 static char data[MAXBUF];
182 for (unsigned char n = 0; n < 64; n++)
186 data[offset++] = n + 65;
187 ModeHandler* mh = ServerInstance->Modes->FindMode(n + 65, MODETYPE_USER);
188 if (showparameters && mh && mh->GetNumParams(true))
190 std::string p = mh->GetUserParameter(this);
192 params.append(" ").append(p);
197 strlcat(data, params.c_str(), MAXBUF);
201 User::User(const std::string &uid, const std::string& sid, int type)
202 : uuid(uid), server(sid), usertype(type)
204 age = ServerInstance->Time();
205 signon = idle_lastmsg = 0;
207 quietquit = quitting = exempt = dns_done = false;
208 quitting_sendq = false;
209 client_sa.sa.sa_family = AF_UNSPEC;
211 ServerInstance->Logs->Log("USERS", DEBUG, "New UUID for user: %s", uuid.c_str());
213 user_hash::iterator finduuid = ServerInstance->Users->uuidlist->find(uuid);
214 if (finduuid == ServerInstance->Users->uuidlist->end())
215 (*ServerInstance->Users->uuidlist)[uuid] = this;
217 throw CoreException("Duplicate UUID "+std::string(uuid)+" in User constructor");
220 LocalUser::LocalUser(int myfd, irc::sockets::sockaddrs* client, irc::sockets::sockaddrs* servaddr)
221 : User(ServerInstance->GetUID(), ServerInstance->Config->ServerName, USERTYPE_LOCAL), eh(this),
222 localuseriter(ServerInstance->Users->local_users.end()),
223 bytes_in(0), bytes_out(0), cmds_in(0), cmds_out(0), nping(0), CommandFloodPenalty(0),
229 memcpy(&client_sa, client, sizeof(irc::sockets::sockaddrs));
230 memcpy(&server_sa, servaddr, sizeof(irc::sockets::sockaddrs));
231 dhost = host = GetIPString();
236 if (ServerInstance->Users->uuidlist->find(uuid) != ServerInstance->Users->uuidlist->end())
237 ServerInstance->Logs->Log("USERS", DEFAULT, "User destructor for %s called without cull", uuid.c_str());
240 const std::string& User::MakeHost()
242 if (!this->cached_makehost.empty())
243 return this->cached_makehost;
246 /* This is much faster than snprintf */
248 for(const char* n = ident.c_str(); *n; n++)
251 for(const char* n = host.c_str(); *n; n++)
255 this->cached_makehost.assign(nhost);
257 return this->cached_makehost;
260 const std::string& User::MakeHostIP()
262 if (!this->cached_hostip.empty())
263 return this->cached_hostip;
266 /* This is much faster than snprintf */
268 for(const char* n = ident.c_str(); *n; n++)
271 for(const char* n = this->GetIPString(); *n; n++)
275 this->cached_hostip = ihost;
277 return this->cached_hostip;
280 const std::string& User::GetFullHost()
282 if (!this->cached_fullhost.empty())
283 return this->cached_fullhost;
287 for(const char* n = nick.c_str(); *n; n++)
290 for(const char* n = ident.c_str(); *n; n++)
293 for(const char* n = dhost.c_str(); *n; n++)
297 this->cached_fullhost = result;
299 return this->cached_fullhost;
302 char* User::MakeWildHost()
304 static char nresult[MAXBUF];
306 *t++ = '*'; *t++ = '!';
307 *t++ = '*'; *t++ = '@';
308 for(const char* n = dhost.c_str(); *n; n++)
314 const std::string& User::GetFullRealHost()
316 if (!this->cached_fullrealhost.empty())
317 return this->cached_fullrealhost;
319 char fresult[MAXBUF];
321 for(const char* n = nick.c_str(); *n; n++)
324 for(const char* n = ident.c_str(); *n; n++)
327 for(const char* n = host.c_str(); *n; n++)
331 this->cached_fullrealhost = fresult;
333 return this->cached_fullrealhost;
336 bool LocalUser::IsInvited(const irc::string &channel)
338 Channel* chan = ServerInstance->FindChan(channel.c_str());
342 return (Invitation::Find(chan, this) != NULL);
345 InviteList& LocalUser::GetInviteList()
347 RemoveExpiredInvites();
351 void LocalUser::InviteTo(const irc::string &channel, time_t invtimeout)
353 Channel* chan = ServerInstance->FindChan(channel.c_str());
355 Invitation::Create(chan, this, invtimeout);
358 void LocalUser::RemoveInvite(const irc::string &channel)
360 Channel* chan = ServerInstance->FindChan(channel.c_str());
363 Invitation* inv = Invitation::Find(chan, this);
372 void LocalUser::RemoveExpiredInvites()
374 Invitation::Find(NULL, this);
377 bool User::HasModePermission(unsigned char, ModeType)
382 bool LocalUser::HasModePermission(unsigned char mode, ModeType type)
387 if (mode < 'A' || mode > ('A' + 64)) return false;
389 return ((type == MODETYPE_USER ? oper->AllowedUserModes : oper->AllowedChanModes))[(mode - 'A')];
393 * users on remote servers can completely bypass all permissions based checks.
394 * This prevents desyncs when one server has different type/class tags to another.
395 * That having been said, this does open things up to the possibility of source changes
396 * allowing remote kills, etc - but if they have access to the src, they most likely have
397 * access to the conf - so it's an end to a means either way.
399 bool User::HasPermission(const std::string&)
404 bool LocalUser::HasPermission(const std::string &command)
406 // are they even an oper at all?
412 if (oper->AllowedOperCommands.find(command) != oper->AllowedOperCommands.end())
414 else if (oper->AllowedOperCommands.find("*") != oper->AllowedOperCommands.end())
420 bool User::HasPrivPermission(const std::string &privstr, bool noisy)
425 bool LocalUser::HasPrivPermission(const std::string &privstr, bool noisy)
430 this->WriteServ("NOTICE %s :You are not an oper", this->nick.c_str());
434 if (oper->AllowedPrivs.find(privstr) != oper->AllowedPrivs.end())
438 else if (oper->AllowedPrivs.find("*") != oper->AllowedPrivs.end())
444 this->WriteServ("NOTICE %s :Oper type %s does not have access to priv %s", this->nick.c_str(), oper->NameStr(), privstr.c_str());
448 void UserIOHandler::OnDataReady()
453 if (recvq.length() > user->MyClass->GetRecvqMax() && !user->HasPrivPermission("users/flood/increased-buffers"))
455 ServerInstance->Users->QuitUser(user, "RecvQ exceeded");
456 ServerInstance->SNO->WriteToSnoMask('a', "User %s RecvQ of %lu exceeds connect class maximum of %lu",
457 user->nick.c_str(), (unsigned long)recvq.length(), user->MyClass->GetRecvqMax());
460 unsigned long sendqmax = ULONG_MAX;
461 if (!user->HasPrivPermission("users/flood/increased-buffers"))
462 sendqmax = user->MyClass->GetSendqSoftMax();
463 unsigned long penaltymax = ULONG_MAX;
464 if (!user->HasPrivPermission("users/flood/no-fakelag"))
465 penaltymax = user->MyClass->GetPenaltyThreshold() * 1000;
467 while (user->CommandFloodPenalty < penaltymax && getSendQSize() < sendqmax)
470 line.reserve(MAXBUF);
471 std::string::size_type qpos = 0;
472 while (qpos < recvq.length())
474 char c = recvq[qpos++];
485 if (line.length() < MAXBUF - 2)
488 // if we got here, the recvq ran out before we found a newline
491 // just found a newline. Terminate the string, and pull it out of recvq
492 recvq = recvq.substr(qpos);
494 // TODO should this be moved to when it was inserted in recvq?
495 ServerInstance->stats->statsRecv += qpos;
496 user->bytes_in += qpos;
499 ServerInstance->Parser->ProcessBuffer(line, user);
503 if (user->CommandFloodPenalty >= penaltymax && !user->MyClass->fakelag)
504 ServerInstance->Users->QuitUser(user, "Excess Flood");
507 void UserIOHandler::AddWriteBuf(const std::string &data)
509 if (user->quitting_sendq)
511 if (!user->quitting && getSendQSize() + data.length() > user->MyClass->GetSendqHardMax() &&
512 !user->HasPrivPermission("users/flood/increased-buffers"))
514 user->quitting_sendq = true;
515 ServerInstance->GlobalCulls.AddSQItem(user);
519 // We still want to append data to the sendq of a quitting user,
520 // e.g. their ERROR message that says 'closing link'
525 void UserIOHandler::OnError(BufferedSocketError)
527 ServerInstance->Users->QuitUser(user, getError());
530 CullResult User::cull()
533 ServerInstance->Users->QuitUser(this, "Culled without QuitUser");
534 PurgeEmptyChannels();
536 if (client_sa.sa.sa_family != AF_UNSPEC)
537 ServerInstance->Users->RemoveCloneCounts(this);
539 return Extensible::cull();
542 CullResult LocalUser::cull()
544 // The iterator is initialized to local_users.end() in the constructor. It is
545 // overwritten in UserManager::AddUser() with the real iterator so this check
546 // is only a precaution currently.
547 if (localuseriter != ServerInstance->Users->local_users.end())
549 ServerInstance->Users->local_count--;
550 ServerInstance->Users->local_users.erase(localuseriter);
553 ServerInstance->Logs->Log("USERS", DEFAULT, "ERROR: LocalUserIter does not point to a valid entry for " + this->nick);
560 CullResult FakeUser::cull()
562 // Fake users don't quit, they just get culled.
564 ServerInstance->Users->clientlist->erase(nick);
565 ServerInstance->Users->uuidlist->erase(uuid);
569 void User::Oper(OperInfo* info)
571 if (this->IsModeSet('o'))
574 this->modes[UM_OPERATOR] = 1;
576 this->WriteServ("MODE %s :+o", this->nick.c_str());
577 FOREACH_MOD(I_OnOper, OnOper(this, info->name));
579 std::string opername;
580 if (info->oper_block)
581 opername = info->oper_block->getString("name");
585 LocalUser* l = IS_LOCAL(this);
586 std::string vhost = oper->getConfig("vhost");
588 l->ChangeDisplayedHost(vhost.c_str());
589 std::string opClass = oper->getConfig("class");
590 if (!opClass.empty())
591 l->SetClass(opClass);
594 ServerInstance->SNO->WriteToSnoMask('o',"%s (%s@%s) is now an IRC operator of type %s (using oper '%s')",
595 nick.c_str(), ident.c_str(), host.c_str(), oper->NameStr(), opername.c_str());
596 this->WriteNumeric(381, "%s :You are now %s %s", nick.c_str(), strchr("aeiouAEIOU", oper->name[0]) ? "an" : "a", oper->NameStr());
598 ServerInstance->Logs->Log("OPER", DEFAULT, "%s opered as type: %s", GetFullRealHost().c_str(), oper->NameStr());
599 ServerInstance->Users->all_opers.push_back(this);
601 // Expand permissions from config for faster lookup
605 FOREACH_MOD(I_OnPostOper,OnPostOper(this, oper->name, opername));
608 void OperInfo::init()
610 AllowedOperCommands.clear();
611 AllowedPrivs.clear();
612 AllowedUserModes.reset();
613 AllowedChanModes.reset();
614 AllowedUserModes['o' - 'A'] = true; // Call me paranoid if you want.
616 for(std::vector<reference<ConfigTag> >::iterator iter = class_blocks.begin(); iter != class_blocks.end(); ++iter)
618 ConfigTag* tag = *iter;
619 std::string mycmd, mypriv;
620 /* Process commands */
621 irc::spacesepstream CommandList(tag->getString("commands"));
622 while (CommandList.GetToken(mycmd))
624 AllowedOperCommands.insert(mycmd);
627 irc::spacesepstream PrivList(tag->getString("privs"));
628 while (PrivList.GetToken(mypriv))
630 AllowedPrivs.insert(mypriv);
633 std::string modes = tag->getString("usermodes");
634 for (std::string::const_iterator c = modes.begin(); c != modes.end(); ++c)
638 this->AllowedUserModes.set();
640 else if (*c >= 'A' && *c <= 'z')
642 this->AllowedUserModes[*c - 'A'] = true;
646 modes = tag->getString("chanmodes");
647 for (std::string::const_iterator c = modes.begin(); c != modes.end(); ++c)
651 this->AllowedChanModes.set();
653 else if (*c >= 'A' && *c <= 'z')
655 this->AllowedChanModes[*c - 'A'] = true;
667 * unset their oper type (what IS_OPER checks).
668 * note, order is important - this must come before modes as -o attempts
669 * to call UnOper. -- w00t
674 /* Remove all oper only modes from the user when the deoper - Bug #466*/
675 std::string moderemove("-");
677 for (unsigned char letter = 'A'; letter <= 'z'; letter++)
679 ModeHandler* mh = ServerInstance->Modes->FindMode(letter, MODETYPE_USER);
680 if (mh && mh->NeedsOper())
681 moderemove += letter;
685 std::vector<std::string> parameters;
686 parameters.push_back(this->nick);
687 parameters.push_back(moderemove);
689 ServerInstance->Parser->CallHandler("MODE", parameters, this);
691 /* remove the user from the oper list. Will remove multiple entries as a safeguard against bug #404 */
692 ServerInstance->Users->all_opers.remove(this);
694 this->modes[UM_OPERATOR] = 0;
697 /* adds or updates an entry in the whowas list */
698 void User::AddToWhoWas()
700 Module* whowas = ServerInstance->Modules->Find("cmd_whowas.so");
703 WhowasRequest req(NULL, whowas, WhowasRequest::WHOWAS_ADD);
710 * Check class restrictions
712 void LocalUser::CheckClass()
714 ConnectClass* a = this->MyClass;
718 ServerInstance->Users->QuitUser(this, "Access denied by configuration");
721 else if (a->type == CC_DENY)
723 ServerInstance->Users->QuitUser(this, a->config->getString("reason", "Unauthorised connection"));
726 else if ((a->GetMaxLocal()) && (ServerInstance->Users->LocalCloneCount(this) > a->GetMaxLocal()))
728 ServerInstance->Users->QuitUser(this, "No more connections allowed from your host via this connect class (local)");
730 ServerInstance->SNO->WriteToSnoMask('a', "WARNING: maximum LOCAL connections (%ld) exceeded for IP %s", a->GetMaxLocal(), this->GetIPString());
733 else if ((a->GetMaxGlobal()) && (ServerInstance->Users->GlobalCloneCount(this) > a->GetMaxGlobal()))
735 ServerInstance->Users->QuitUser(this, "No more connections allowed from your host via this connect class (global)");
737 ServerInstance->SNO->WriteToSnoMask('a', "WARNING: maximum GLOBAL connections (%ld) exceeded for IP %s", a->GetMaxGlobal(), this->GetIPString());
741 this->nping = ServerInstance->Time() + a->GetPingTime() + ServerInstance->Config->dns_timeout;
744 bool User::CheckLines(bool doZline)
746 const char* check[] = { "G" , "K", (doZline) ? "Z" : NULL, NULL };
750 for (int n = 0; check[n]; ++n)
752 XLine *r = ServerInstance->XLines->MatchesLine(check[n], this);
765 void LocalUser::FullConnect()
767 ServerInstance->stats->statsConnects++;
768 this->idle_lastmsg = ServerInstance->Time();
771 * You may be thinking "wtf, we checked this in User::AddClient!" - and yes, we did, BUT.
772 * At the time AddClient is called, we don't have a resolved host, by here we probably do - which
773 * may put the user into a totally seperate class with different restrictions! so we *must* check again.
774 * Don't remove this! -- w00t
784 if (ServerInstance->Config->WelcomeNotice)
785 this->WriteServ("NOTICE Auth :Welcome to \002%s\002!",ServerInstance->Config->Network.c_str());
786 this->WriteNumeric(RPL_WELCOME, "%s :Welcome to the %s IRC Network %s",this->nick.c_str(), ServerInstance->Config->Network.c_str(), GetFullRealHost().c_str());
787 this->WriteNumeric(RPL_YOURHOSTIS, "%s :Your host is %s, running version %s",this->nick.c_str(),ServerInstance->Config->ServerName.c_str(),BRANCH);
788 this->WriteNumeric(RPL_SERVERCREATED, "%s :This server was created %s %s", this->nick.c_str(), __TIME__, __DATE__);
790 std::string umlist = ServerInstance->Modes->UserModeList();
791 std::string cmlist = ServerInstance->Modes->ChannelModeList();
792 std::string pmlist = ServerInstance->Modes->ParaModeList();
793 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());
795 ServerInstance->Config->Send005(this);
796 this->WriteNumeric(RPL_YOURUUID, "%s %s :your unique ID", this->nick.c_str(), this->uuid.c_str());
799 if (ServerInstance->Users->unregistered_count)
800 ServerInstance->Users->unregistered_count--;
802 /* Trigger MOTD and LUSERS output, give modules a chance too */
803 ModResult MOD_RESULT;
804 std::string command("MOTD");
805 std::vector<std::string> parameters;
806 FIRST_MOD_RESULT(OnPreCommand, MOD_RESULT, (command, parameters, this, true, command));
808 ServerInstance->Parser->CallHandler(command, parameters, this);
810 MOD_RESULT = MOD_RES_PASSTHRU;
812 FIRST_MOD_RESULT(OnPreCommand, MOD_RESULT, (command, parameters, this, true, command));
814 ServerInstance->Parser->CallHandler(command, parameters, this);
816 if (ServerInstance->Config->RawLog)
817 WriteServ("PRIVMSG %s :*** Raw I/O logging is enabled on this server. All messages, passwords, and commands are being recorded.", nick.c_str());
820 * We don't set REG_ALL until triggering OnUserConnect, so some module events don't spew out stuff
821 * for a user that doesn't exist yet.
823 FOREACH_MOD(I_OnUserConnect,OnUserConnect(this));
825 this->registered = REG_ALL;
827 FOREACH_MOD(I_OnPostConnect,OnPostConnect(this));
829 ServerInstance->SNO->WriteToSnoMask('c',"Client connecting on port %d (class %s): %s (%s) [%s]",
830 this->GetServerPort(), this->MyClass->name.c_str(), GetFullRealHost().c_str(), this->GetIPString(), this->fullname.c_str());
831 ServerInstance->Logs->Log("BANCACHE", DEBUG, "BanCache: Adding NEGATIVE hit for %s", this->GetIPString());
832 ServerInstance->BanCache->AddHit(this->GetIPString(), "", "");
833 // reset the flood penalty (which could have been raised due to things like auto +x)
834 CommandFloodPenalty = 0;
837 void User::InvalidateCache()
839 /* Invalidate cache */
840 cached_fullhost.clear();
841 cached_hostip.clear();
842 cached_makehost.clear();
843 cached_fullrealhost.clear();
846 bool User::ChangeNick(const std::string& newnick, bool force)
850 ServerInstance->Logs->Log("USERS", DEFAULT, "ERROR: Attempted to change nick of a quitting user: " + this->nick);
854 ModResult MOD_RESULT;
857 ServerInstance->NICKForced.set(this, 1);
858 FIRST_MOD_RESULT(OnUserPreNick, MOD_RESULT, (this, newnick));
859 ServerInstance->NICKForced.set(this, 0);
861 if (MOD_RESULT == MOD_RES_DENY)
863 ServerInstance->stats->statsCollisions++;
867 if (assign(newnick) == assign(nick))
869 // case change, don't need to check Q:lines and such
870 // and, if it's identical including case, we can leave right now
877 * Don't check Q:Lines if it's a server-enforced change, just on the off-chance some fucking *moron*
878 * tries to Q:Line SIDs, also, this means we just get our way period, as it really should be.
879 * Thanks Kein for finding this. -- w00t
881 * Also don't check Q:Lines for remote nickchanges, they should have our Q:Lines anyway to enforce themselves.
884 if (IS_LOCAL(this) && !force)
886 XLine* mq = ServerInstance->XLines->MatchesLine("Q",newnick);
889 if (this->registered == REG_ALL)
891 ServerInstance->SNO->WriteGlobalSno('a', "Q-Lined nickname %s from %s: %s",
892 newnick.c_str(), GetFullRealHost().c_str(), mq->reason.c_str());
894 this->WriteNumeric(432, "%s %s :Invalid nickname: %s",this->nick.c_str(), newnick.c_str(), mq->reason.c_str());
898 if (ServerInstance->Config->RestrictBannedUsers)
900 for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
903 if (chan->GetPrefixValue(this) < VOICE_VALUE && chan->IsBanned(this))
905 this->WriteNumeric(404, "%s %s :Cannot send to channel (you're banned)", this->nick.c_str(), chan->name.c_str());
913 * Uh oh.. if the nickname is in use, and it's not in use by the person using it (doh) --
914 * then we have a potential collide. Check whether someone else is camping on the nick
915 * (i.e. connect -> send NICK, don't send USER.) If they are camping, force-change the
916 * camper to their UID, and allow the incoming nick change.
918 * If the guy using the nick is already using it, tell the incoming nick change to gtfo,
919 * because the nick is already (rightfully) in use. -- w00t
921 User* InUse = ServerInstance->FindNickOnly(newnick);
922 if (InUse && (InUse != this))
924 if (InUse->registered != REG_ALL)
926 /* force the camper to their UUID, and ask them to re-send a NICK. */
927 InUse->WriteTo(InUse, "NICK %s", InUse->uuid.c_str());
928 InUse->WriteNumeric(433, "%s %s :Nickname overruled.", InUse->nick.c_str(), InUse->nick.c_str());
930 ServerInstance->Users->clientlist->erase(InUse->nick);
931 (*(ServerInstance->Users->clientlist))[InUse->uuid] = InUse;
933 InUse->nick = InUse->uuid;
934 InUse->InvalidateCache();
935 InUse->registered &= ~REG_NICK;
939 /* No camping, tell the incoming user to stop trying to change nick ;p */
940 this->WriteNumeric(433, "%s %s :Nickname is already in use.", this->registered >= REG_NICK ? this->nick.c_str() : "*", newnick.c_str());
946 if (this->registered == REG_ALL)
947 this->WriteCommon("NICK %s",newnick.c_str());
948 std::string oldnick = nick;
952 ServerInstance->Users->clientlist->erase(oldnick);
953 (*(ServerInstance->Users->clientlist))[newnick] = this;
955 if (registered == REG_ALL)
956 FOREACH_MOD(I_OnUserPostNick,OnUserPostNick(this,oldnick));
961 int LocalUser::GetServerPort()
963 switch (this->server_sa.sa.sa_family)
966 return htons(this->server_sa.in6.sin6_port);
968 return htons(this->server_sa.in4.sin_port);
973 const char* User::GetIPString()
976 if (cachedip.empty())
978 irc::sockets::satoap(client_sa, cachedip, port);
979 /* IP addresses starting with a : on irc are a Bad Thing (tm) */
980 if (cachedip.c_str()[0] == ':')
981 cachedip.insert(cachedip.begin(),1,'0');
984 return cachedip.c_str();
987 irc::sockets::cidr_mask User::GetCIDRMask()
990 switch (client_sa.sa.sa_family)
993 range = ServerInstance->Config->c_ipv6_range;
996 range = ServerInstance->Config->c_ipv4_range;
999 return irc::sockets::cidr_mask(client_sa, range);
1002 bool User::SetClientIP(const char* sip, bool recheck_eline)
1005 cached_hostip.clear();
1006 return irc::sockets::aptosa(sip, 0, client_sa);
1009 void User::SetClientIP(const irc::sockets::sockaddrs& sa, bool recheck_eline)
1012 cached_hostip.clear();
1013 memcpy(&client_sa, &sa, sizeof(irc::sockets::sockaddrs));
1016 bool LocalUser::SetClientIP(const char* sip, bool recheck_eline)
1018 irc::sockets::sockaddrs sa;
1019 if (!irc::sockets::aptosa(sip, 0, sa))
1023 LocalUser::SetClientIP(sa, recheck_eline);
1027 void LocalUser::SetClientIP(const irc::sockets::sockaddrs& sa, bool recheck_eline)
1029 if (sa != client_sa)
1031 User::SetClientIP(sa);
1033 this->exempt = (ServerInstance->XLines->MatchesLine("E", this) != NULL);
1035 FOREACH_MOD(I_OnSetUserIP,OnSetUserIP(this));
1039 static std::string wide_newline("\r\n");
1041 void User::Write(const std::string& text)
1045 void User::Write(const char *text, ...)
1049 void LocalUser::Write(const std::string& text)
1051 if (!ServerInstance->SE->BoundsCheckFd(&eh))
1054 if (text.length() > MAXBUF - 2)
1056 // this should happen rarely or never. Crop the string at 512 and try again.
1057 std::string try_again = text.substr(0, MAXBUF - 2);
1062 ServerInstance->Logs->Log("USEROUTPUT", RAWIO, "C[%s] O %s", uuid.c_str(), text.c_str());
1064 eh.AddWriteBuf(text);
1065 eh.AddWriteBuf(wide_newline);
1067 ServerInstance->stats->statsSent += text.length() + 2;
1068 this->bytes_out += text.length() + 2;
1074 void LocalUser::Write(const char *text, ...)
1077 char textbuffer[MAXBUF];
1079 va_start(argsPtr, text);
1080 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1083 this->Write(std::string(textbuffer));
1086 void User::WriteServ(const std::string& text)
1088 this->Write(":%s %s",ServerInstance->Config->ServerName.c_str(),text.c_str());
1092 * Same as Write(), except `text' is prefixed with `:server.name '.
1094 void User::WriteServ(const char* text, ...)
1097 char textbuffer[MAXBUF];
1099 va_start(argsPtr, text);
1100 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1103 this->WriteServ(std::string(textbuffer));
1107 void User::WriteNumeric(unsigned int numeric, const char* text, ...)
1110 char textbuffer[MAXBUF];
1112 va_start(argsPtr, text);
1113 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1116 this->WriteNumeric(numeric, std::string(textbuffer));
1119 void User::WriteNumeric(unsigned int numeric, const std::string &text)
1121 char textbuffer[MAXBUF];
1122 ModResult MOD_RESULT;
1124 FIRST_MOD_RESULT(OnNumeric, MOD_RESULT, (this, numeric, text));
1126 if (MOD_RESULT == MOD_RES_DENY)
1129 snprintf(textbuffer,MAXBUF,":%s %03u %s",ServerInstance->Config->ServerName.c_str(), numeric, text.c_str());
1130 this->Write(std::string(textbuffer));
1133 void User::WriteFrom(User *user, const std::string &text)
1137 snprintf(tb,MAXBUF,":%s %s",user->GetFullHost().c_str(),text.c_str());
1139 this->Write(std::string(tb));
1143 /* write text from an originating user to originating user */
1145 void User::WriteFrom(User *user, const char* text, ...)
1148 char textbuffer[MAXBUF];
1150 va_start(argsPtr, text);
1151 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1154 this->WriteFrom(user, std::string(textbuffer));
1158 /* write text to an destination user from a source user (e.g. user privmsg) */
1160 void User::WriteTo(User *dest, const char *data, ...)
1162 char textbuffer[MAXBUF];
1165 va_start(argsPtr, data);
1166 vsnprintf(textbuffer, MAXBUF, data, argsPtr);
1169 this->WriteTo(dest, std::string(textbuffer));
1172 void User::WriteTo(User *dest, const std::string &data)
1174 dest->WriteFrom(this, data);
1177 void User::WriteCommon(const char* text, ...)
1179 char textbuffer[MAXBUF];
1182 if (this->registered != REG_ALL || quitting)
1185 int len = snprintf(textbuffer,MAXBUF,":%s ",this->GetFullHost().c_str());
1187 va_start(argsPtr, text);
1188 vsnprintf(textbuffer + len, MAXBUF - len, text, argsPtr);
1191 this->WriteCommonRaw(std::string(textbuffer), true);
1194 void User::WriteCommonExcept(const char* text, ...)
1196 char textbuffer[MAXBUF];
1199 if (this->registered != REG_ALL || quitting)
1202 int len = snprintf(textbuffer,MAXBUF,":%s ",this->GetFullHost().c_str());
1204 va_start(argsPtr, text);
1205 vsnprintf(textbuffer + len, MAXBUF - len, text, argsPtr);
1208 this->WriteCommonRaw(std::string(textbuffer), false);
1211 void User::WriteCommonRaw(const std::string &line, bool include_self)
1213 if (this->registered != REG_ALL || quitting)
1216 LocalUser::already_sent_id++;
1218 UserChanList include_c(chans);
1219 std::map<User*,bool> exceptions;
1221 exceptions[this] = include_self;
1223 FOREACH_MOD(I_OnBuildNeighborList,OnBuildNeighborList(this, include_c, exceptions));
1225 for (std::map<User*,bool>::iterator i = exceptions.begin(); i != exceptions.end(); ++i)
1227 LocalUser* u = IS_LOCAL(i->first);
1228 if (u && !u->quitting)
1230 u->already_sent = LocalUser::already_sent_id;
1235 for (UCListIter v = include_c.begin(); v != include_c.end(); ++v)
1238 const UserMembList* ulist = c->GetUsers();
1239 for (UserMembList::const_iterator i = ulist->begin(); i != ulist->end(); i++)
1241 LocalUser* u = IS_LOCAL(i->first);
1242 if (u && !u->quitting && u->already_sent != LocalUser::already_sent_id)
1244 u->already_sent = LocalUser::already_sent_id;
1251 void User::WriteCommonQuit(const std::string &normal_text, const std::string &oper_text)
1256 if (this->registered != REG_ALL)
1259 already_sent_t uniq_id = ++LocalUser::already_sent_id;
1261 snprintf(tb1,MAXBUF,":%s QUIT :%s",this->GetFullHost().c_str(),normal_text.c_str());
1262 snprintf(tb2,MAXBUF,":%s QUIT :%s",this->GetFullHost().c_str(),oper_text.c_str());
1263 std::string out1 = tb1;
1264 std::string out2 = tb2;
1266 UserChanList include_c(chans);
1267 std::map<User*,bool> exceptions;
1269 FOREACH_MOD(I_OnBuildNeighborList,OnBuildNeighborList(this, include_c, exceptions));
1271 for (std::map<User*,bool>::iterator i = exceptions.begin(); i != exceptions.end(); ++i)
1273 LocalUser* u = IS_LOCAL(i->first);
1274 if (u && !u->quitting)
1276 u->already_sent = uniq_id;
1278 u->Write(IS_OPER(u) ? out2 : out1);
1281 for (UCListIter v = include_c.begin(); v != include_c.end(); ++v)
1283 const UserMembList* ulist = (*v)->GetUsers();
1284 for (UserMembList::const_iterator i = ulist->begin(); i != ulist->end(); i++)
1286 LocalUser* u = IS_LOCAL(i->first);
1287 if (u && !u->quitting && (u->already_sent != uniq_id))
1289 u->already_sent = uniq_id;
1290 u->Write(IS_OPER(u) ? out2 : out1);
1296 void LocalUser::SendText(const std::string& line)
1301 void RemoteUser::SendText(const std::string& line)
1303 ServerInstance->PI->PushToClient(this, line);
1306 void FakeUser::SendText(const std::string& line)
1310 void User::SendText(const char *text, ...)
1315 va_start(argsPtr, text);
1316 vsnprintf(line, MAXBUF, text, argsPtr);
1319 SendText(std::string(line));
1322 void User::SendText(const std::string &LinePrefix, std::stringstream &TextStream)
1326 while (TextStream >> Word)
1328 size_t lineLength = LinePrefix.length() + line.length() + Word.length() + 13;
1329 if (lineLength > MAXBUF)
1331 SendText(LinePrefix + line);
1336 SendText(LinePrefix + line);
1339 /* return 0 or 1 depending if users u and u2 share one or more common channels
1340 * (used by QUIT, NICK etc which arent channel specific notices)
1342 * The old algorithm in 1.0 for this was relatively inefficient, iterating over
1343 * the first users channels then the second users channels within the outer loop,
1344 * therefore it was a maximum of x*y iterations (upon returning 0 and checking
1345 * all possible iterations). However this new function instead checks against the
1346 * channel's userlist in the inner loop which is a std::map<User*,User*>
1347 * and saves us time as we already know what pointer value we are after.
1348 * Don't quote me on the maths as i am not a mathematician or computer scientist,
1349 * but i believe this algorithm is now x+(log y) maximum iterations instead.
1351 bool User::SharesChannelWith(User *other)
1353 if ((!other) || (this->registered != REG_ALL) || (other->registered != REG_ALL))
1357 for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
1359 /* Eliminate the inner loop (which used to be ~equal in size to the outer loop)
1360 * by replacing it with a map::find which *should* be more efficient
1362 if ((*i)->HasUser(other))
1368 bool User::ChangeName(const char* gecos)
1370 if (!this->fullname.compare(gecos))
1375 ModResult MOD_RESULT;
1376 FIRST_MOD_RESULT(OnChangeLocalUserGECOS, MOD_RESULT, (IS_LOCAL(this),gecos));
1377 if (MOD_RESULT == MOD_RES_DENY)
1379 FOREACH_MOD(I_OnChangeName,OnChangeName(this,gecos));
1381 this->fullname.assign(gecos, 0, ServerInstance->Config->Limits.MaxGecos);
1386 void User::DoHostCycle(const std::string &quitline)
1388 char buffer[MAXBUF];
1390 if (!ServerInstance->Config->CycleHosts)
1393 already_sent_t silent_id = ++LocalUser::already_sent_id;
1394 already_sent_t seen_id = ++LocalUser::already_sent_id;
1396 UserChanList include_c(chans);
1397 std::map<User*,bool> exceptions;
1399 FOREACH_MOD(I_OnBuildNeighborList,OnBuildNeighborList(this, include_c, exceptions));
1401 for (std::map<User*,bool>::iterator i = exceptions.begin(); i != exceptions.end(); ++i)
1403 LocalUser* u = IS_LOCAL(i->first);
1404 if (u && !u->quitting)
1408 u->already_sent = seen_id;
1413 u->already_sent = silent_id;
1417 for (UCListIter v = include_c.begin(); v != include_c.end(); ++v)
1420 snprintf(buffer, MAXBUF, ":%s JOIN %s", GetFullHost().c_str(), c->name.c_str());
1421 std::string joinline(buffer);
1422 Membership* memb = c->GetUser(this);
1423 std::string modeline = memb->modes;
1424 if (modeline.length() > 0)
1426 for(unsigned int i=0; i < memb->modes.length(); i++)
1427 modeline.append(" ").append(nick);
1428 snprintf(buffer, MAXBUF, ":%s MODE %s +%s",
1429 ServerInstance->Config->CycleHostsFromUser ? GetFullHost().c_str() : ServerInstance->Config->ServerName.c_str(),
1430 c->name.c_str(), modeline.c_str());
1434 const UserMembList *ulist = c->GetUsers();
1435 for (UserMembList::const_iterator i = ulist->begin(); i != ulist->end(); i++)
1437 LocalUser* u = IS_LOCAL(i->first);
1438 if (u == NULL || u == this)
1440 if (u->already_sent == silent_id)
1443 if (u->already_sent != seen_id)
1446 u->already_sent = seen_id;
1449 if (modeline.length() > 0)
1455 bool User::ChangeDisplayedHost(const char* shost)
1462 ModResult MOD_RESULT;
1463 FIRST_MOD_RESULT(OnChangeLocalUserHost, MOD_RESULT, (IS_LOCAL(this),shost));
1464 if (MOD_RESULT == MOD_RES_DENY)
1468 FOREACH_MOD(I_OnChangeHost, OnChangeHost(this,shost));
1470 std::string quitstr = ":" + GetFullHost() + " QUIT :Changing host";
1472 /* Fix by Om: User::dhost is 65 long, this was truncating some long hosts */
1473 this->dhost.assign(shost, 0, 64);
1475 this->InvalidateCache();
1477 this->DoHostCycle(quitstr);
1480 this->WriteNumeric(RPL_YOURDISPLAYEDHOST, "%s %s :is now your displayed host",this->nick.c_str(),this->dhost.c_str());
1485 bool User::ChangeIdent(const char* newident)
1487 if (this->ident == newident)
1490 FOREACH_MOD(I_OnChangeIdent, OnChangeIdent(this,newident));
1492 std::string quitstr = ":" + GetFullHost() + " QUIT :Changing ident";
1494 this->ident.assign(newident, 0, ServerInstance->Config->Limits.IdentMax);
1496 this->InvalidateCache();
1498 this->DoHostCycle(quitstr);
1503 void User::SendAll(const char* command, const char* text, ...)
1505 char textbuffer[MAXBUF];
1506 char formatbuffer[MAXBUF];
1509 va_start(argsPtr, text);
1510 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1513 snprintf(formatbuffer,MAXBUF,":%s %s $* :%s", this->GetFullHost().c_str(), command, textbuffer);
1514 std::string fmt = formatbuffer;
1516 for (LocalUserList::const_iterator i = ServerInstance->Users->local_users.begin(); i != ServerInstance->Users->local_users.end(); i++)
1518 if ((*i)->registered == REG_ALL)
1524 std::string User::ChannelList(User* source, bool spy)
1528 for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
1531 /* If the target is the sender, neither +p nor +s is set, or
1532 * the channel contains the user, it is not a spy channel
1534 if (spy != (source == this || !(c->IsModeSet('p') || c->IsModeSet('s')) || c->HasUser(source)))
1535 list.append(c->GetPrefixChar(this)).append(c->name).append(" ");
1541 void User::SplitChanList(User* dest, const std::string &cl)
1544 std::ostringstream prefix;
1545 std::string::size_type start, pos;
1547 prefix << this->nick << " " << dest->nick << " :";
1548 line = prefix.str();
1549 int namelen = ServerInstance->Config->ServerName.length() + 6;
1551 for (start = 0; (pos = cl.find(' ', start)) != std::string::npos; start = pos+1)
1553 if (line.length() + namelen + pos - start > 510)
1555 ServerInstance->SendWhoisLine(this, dest, 319, "%s", line.c_str());
1556 line = prefix.str();
1559 line.append(cl.substr(start, pos - start + 1));
1562 if (line.length() != prefix.str().length())
1564 ServerInstance->SendWhoisLine(this, dest, 319, "%s", line.c_str());
1569 * Sets a user's connection class.
1570 * If the class name is provided, it will be used. Otherwise, the class will be guessed using host/ip/ident/etc.
1571 * NOTE: If the <ALLOW> or <DENY> tag specifies an ip, and this user resolves,
1572 * then their ip will be taken as 'priority' anyway, so for example,
1573 * <connect allow="127.0.0.1"> will match joe!bloggs@localhost
1575 void LocalUser::SetClass(const std::string &explicit_name)
1577 ConnectClass *found = NULL;
1579 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Setting connect class for UID %s", this->uuid.c_str());
1581 if (!explicit_name.empty())
1583 for (ClassVector::iterator i = ServerInstance->Config->Classes.begin(); i != ServerInstance->Config->Classes.end(); i++)
1585 ConnectClass* c = *i;
1587 if (explicit_name == c->name)
1589 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Explicitly set to %s", explicit_name.c_str());
1596 for (ClassVector::iterator i = ServerInstance->Config->Classes.begin(); i != ServerInstance->Config->Classes.end(); i++)
1598 ConnectClass* c = *i;
1599 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Checking %s", c->GetName().c_str());
1601 ModResult MOD_RESULT;
1602 FIRST_MOD_RESULT(OnSetConnectClass, MOD_RESULT, (this,c));
1603 if (MOD_RESULT == MOD_RES_DENY)
1605 if (MOD_RESULT == MOD_RES_ALLOW)
1607 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Class forced by module to %s", c->GetName().c_str());
1612 if (c->type == CC_NAMED)
1615 bool regdone = (registered != REG_NONE);
1616 if (c->config->getBool("registered", regdone) != regdone)
1619 /* check if host matches.. */
1620 if (!InspIRCd::MatchCIDR(this->GetIPString(), c->GetHost(), NULL) &&
1621 !InspIRCd::MatchCIDR(this->host, c->GetHost(), NULL))
1623 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "No host match (for %s)", c->GetHost().c_str());
1628 * deny change if change will take class over the limit check it HERE, not after we found a matching class,
1629 * because we should attempt to find another class if this one doesn't match us. -- w00t
1631 if (c->limit && (c->GetReferenceCount() >= c->limit))
1633 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "OOPS: Connect class limit (%lu) hit, denying", c->limit);
1637 /* if it requires a port ... */
1638 int port = c->config->getInt("port");
1641 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Requires port (%d)", port);
1643 /* and our port doesn't match, fail. */
1644 if (this->GetServerPort() != port)
1648 if (regdone && !c->config->getString("password").empty())
1650 if (ServerInstance->PassCompare(this, c->config->getString("password"), password, c->config->getString("hash")))
1652 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Bad password, skipping");
1657 /* we stop at the first class that meets ALL critera. */
1664 * Okay, assuming we found a class that matches.. switch us into that class, keeping refcounts up to date.
1672 /* looks up a users password for their connection class (<ALLOW>/<DENY> tags)
1673 * NOTE: If the <ALLOW> or <DENY> tag specifies an ip, and this user resolves,
1674 * then their ip will be taken as 'priority' anyway, so for example,
1675 * <connect allow="127.0.0.1"> will match joe!bloggs@localhost
1677 ConnectClass* LocalUser::GetClass()
1682 ConnectClass* User::GetClass()
1687 void User::PurgeEmptyChannels()
1689 // firstly decrement the count on each channel
1690 for (UCListIter f = this->chans.begin(); f != this->chans.end(); f++)
1699 const std::string& FakeUser::GetFullHost()
1701 if (!ServerInstance->Config->HideWhoisServer.empty())
1702 return ServerInstance->Config->HideWhoisServer;
1706 const std::string& FakeUser::GetFullRealHost()
1708 if (!ServerInstance->Config->HideWhoisServer.empty())
1709 return ServerInstance->Config->HideWhoisServer;
1713 ConnectClass::ConnectClass(ConfigTag* tag, char t, const std::string& mask)
1714 : config(tag), type(t), fakelag(true), name("unnamed"), registration_timeout(0), host(mask),
1715 pingtime(0), softsendqmax(0), hardsendqmax(0), recvqmax(0),
1716 penaltythreshold(0), commandrate(0), maxlocal(0), maxglobal(0), maxconnwarn(true), maxchans(0), limit(0)
1720 ConnectClass::ConnectClass(ConfigTag* tag, char t, const std::string& mask, const ConnectClass& parent)
1721 : config(tag), type(t), fakelag(parent.fakelag), name("unnamed"),
1722 registration_timeout(parent.registration_timeout), host(mask), pingtime(parent.pingtime),
1723 softsendqmax(parent.softsendqmax), hardsendqmax(parent.hardsendqmax), recvqmax(parent.recvqmax),
1724 penaltythreshold(parent.penaltythreshold), commandrate(parent.commandrate),
1725 maxlocal(parent.maxlocal), maxglobal(parent.maxglobal), maxconnwarn(parent.maxconnwarn), maxchans(parent.maxchans),
1730 void ConnectClass::Update(const ConnectClass* src)
1732 config = src->config;
1734 fakelag = src->fakelag;
1736 registration_timeout = src->registration_timeout;
1738 pingtime = src->pingtime;
1739 softsendqmax = src->softsendqmax;
1740 hardsendqmax = src->hardsendqmax;
1741 recvqmax = src->recvqmax;
1742 penaltythreshold = src->penaltythreshold;
1743 commandrate = src->commandrate;
1744 maxlocal = src->maxlocal;
1745 maxglobal = src->maxglobal;
1746 maxconnwarn = src->maxconnwarn;
1747 maxchans = src->maxchans;