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);
94 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 bytes_in(0), bytes_out(0), cmds_in(0), cmds_out(0), nping(0), CommandFloodPenalty(0),
227 memcpy(&client_sa, client, sizeof(irc::sockets::sockaddrs));
228 memcpy(&server_sa, servaddr, sizeof(irc::sockets::sockaddrs));
233 if (ServerInstance->Users->uuidlist->find(uuid) != ServerInstance->Users->uuidlist->end())
234 ServerInstance->Logs->Log("USERS", DEFAULT, "User destructor for %s called without cull", uuid.c_str());
237 const std::string& User::MakeHost()
239 if (!this->cached_makehost.empty())
240 return this->cached_makehost;
243 /* This is much faster than snprintf */
245 for(const char* n = ident.c_str(); *n; n++)
248 for(const char* n = host.c_str(); *n; n++)
252 this->cached_makehost.assign(nhost);
254 return this->cached_makehost;
257 const std::string& User::MakeHostIP()
259 if (!this->cached_hostip.empty())
260 return this->cached_hostip;
263 /* This is much faster than snprintf */
265 for(const char* n = ident.c_str(); *n; n++)
268 for(const char* n = this->GetIPString(); *n; n++)
272 this->cached_hostip = ihost;
274 return this->cached_hostip;
277 const std::string& User::GetFullHost()
279 if (!this->cached_fullhost.empty())
280 return this->cached_fullhost;
284 for(const char* n = nick.c_str(); *n; n++)
287 for(const char* n = ident.c_str(); *n; n++)
290 for(const char* n = dhost.c_str(); *n; n++)
294 this->cached_fullhost = result;
296 return this->cached_fullhost;
299 char* User::MakeWildHost()
301 static char nresult[MAXBUF];
303 *t++ = '*'; *t++ = '!';
304 *t++ = '*'; *t++ = '@';
305 for(const char* n = dhost.c_str(); *n; n++)
311 const std::string& User::GetFullRealHost()
313 if (!this->cached_fullrealhost.empty())
314 return this->cached_fullrealhost;
316 char fresult[MAXBUF];
318 for(const char* n = nick.c_str(); *n; n++)
321 for(const char* n = ident.c_str(); *n; n++)
324 for(const char* n = host.c_str(); *n; n++)
328 this->cached_fullrealhost = fresult;
330 return this->cached_fullrealhost;
333 bool LocalUser::IsInvited(const irc::string &channel)
335 time_t now = ServerInstance->Time();
336 InvitedList::iterator safei;
337 for (InvitedList::iterator i = invites.begin(); i != invites.end(); ++i)
339 if (channel == i->first)
341 if (i->second != 0 && now > i->second)
343 /* Expired invite, remove it. */
346 invites.erase(safei);
355 InvitedList* LocalUser::GetInviteList()
357 time_t now = ServerInstance->Time();
358 /* Weed out expired invites here. */
359 InvitedList::iterator safei;
360 for (InvitedList::iterator i = invites.begin(); i != invites.end(); ++i)
362 if (i->second != 0 && now > i->second)
364 /* Expired invite, remove it. */
367 invites.erase(safei);
373 void LocalUser::InviteTo(const irc::string &channel, time_t invtimeout)
375 time_t now = ServerInstance->Time();
376 if (invtimeout != 0 && now > invtimeout) return; /* Don't add invites that are expired from the get-go. */
377 for (InvitedList::iterator i = invites.begin(); i != invites.end(); ++i)
379 if (channel == i->first)
381 if (i->second != 0 && invtimeout > i->second)
383 i->second = invtimeout;
389 invites.push_back(std::make_pair(channel, invtimeout));
392 void LocalUser::RemoveInvite(const irc::string &channel)
394 for (InvitedList::iterator i = invites.begin(); i != invites.end(); i++)
396 if (channel == i->first)
404 bool User::HasModePermission(unsigned char, ModeType)
409 bool LocalUser::HasModePermission(unsigned char mode, ModeType type)
414 if (mode < 'A' || mode > ('A' + 64)) return false;
416 return ((type == MODETYPE_USER ? oper->AllowedUserModes : oper->AllowedChanModes))[(mode - 'A')];
420 * users on remote servers can completely bypass all permissions based checks.
421 * This prevents desyncs when one server has different type/class tags to another.
422 * That having been said, this does open things up to the possibility of source changes
423 * allowing remote kills, etc - but if they have access to the src, they most likely have
424 * access to the conf - so it's an end to a means either way.
426 bool User::HasPermission(const std::string&)
431 bool LocalUser::HasPermission(const std::string &command)
433 // are they even an oper at all?
439 if (oper->AllowedOperCommands.find(command) != oper->AllowedOperCommands.end())
441 else if (oper->AllowedOperCommands.find("*") != oper->AllowedOperCommands.end())
447 bool User::HasPrivPermission(const std::string &privstr, bool noisy)
452 bool LocalUser::HasPrivPermission(const std::string &privstr, bool noisy)
457 this->WriteServ("NOTICE %s :You are not an oper", this->nick.c_str());
461 if (oper->AllowedPrivs.find(privstr) != oper->AllowedPrivs.end())
465 else if (oper->AllowedPrivs.find("*") != oper->AllowedPrivs.end())
471 this->WriteServ("NOTICE %s :Oper type %s does not have access to priv %s", this->nick.c_str(), oper->NameStr(), privstr.c_str());
475 void UserIOHandler::OnDataReady()
480 if (recvq.length() > user->MyClass->GetRecvqMax() && !user->HasPrivPermission("users/flood/increased-buffers"))
482 ServerInstance->Users->QuitUser(user, "RecvQ exceeded");
483 ServerInstance->SNO->WriteToSnoMask('a', "User %s RecvQ of %lu exceeds connect class maximum of %lu",
484 user->nick.c_str(), (unsigned long)recvq.length(), user->MyClass->GetRecvqMax());
486 unsigned long sendqmax = ULONG_MAX;
487 if (!user->HasPrivPermission("users/flood/increased-buffers"))
488 sendqmax = user->MyClass->GetSendqSoftMax();
489 unsigned long penaltymax = ULONG_MAX;
490 if (!user->HasPrivPermission("users/flood/no-fakelag"))
491 penaltymax = user->MyClass->GetPenaltyThreshold() * 1000;
493 while (user->CommandFloodPenalty < penaltymax && getSendQSize() < sendqmax)
496 line.reserve(MAXBUF);
497 std::string::size_type qpos = 0;
498 while (qpos < recvq.length())
500 char c = recvq[qpos++];
511 if (line.length() < MAXBUF - 2)
514 // if we got here, the recvq ran out before we found a newline
517 // just found a newline. Terminate the string, and pull it out of recvq
518 recvq = recvq.substr(qpos);
520 // TODO should this be moved to when it was inserted in recvq?
521 ServerInstance->stats->statsRecv += qpos;
522 user->bytes_in += qpos;
525 ServerInstance->Parser->ProcessBuffer(line, user);
529 if (user->CommandFloodPenalty >= penaltymax && !user->MyClass->fakelag)
530 ServerInstance->Users->QuitUser(user, "Excess Flood");
533 void UserIOHandler::AddWriteBuf(const std::string &data)
535 if (user->quitting_sendq)
537 if (!user->quitting && getSendQSize() + data.length() > user->MyClass->GetSendqHardMax() &&
538 !user->HasPrivPermission("users/flood/increased-buffers"))
540 user->quitting_sendq = true;
541 ServerInstance->GlobalCulls.AddSQItem(user);
545 // We still want to append data to the sendq of a quitting user,
546 // e.g. their ERROR message that says 'closing link'
551 void UserIOHandler::OnError(BufferedSocketError)
553 ServerInstance->Users->QuitUser(user, getError());
556 CullResult User::cull()
559 ServerInstance->Users->QuitUser(this, "Culled without QuitUser");
560 PurgeEmptyChannels();
562 this->InvalidateCache();
564 if (client_sa.sa.sa_family != AF_UNSPEC)
565 ServerInstance->Users->RemoveCloneCounts(this);
567 return Extensible::cull();
570 CullResult LocalUser::cull()
572 std::vector<LocalUser*>::iterator x = find(ServerInstance->Users->local_users.begin(),ServerInstance->Users->local_users.end(),this);
573 if (x != ServerInstance->Users->local_users.end())
574 ServerInstance->Users->local_users.erase(x);
576 ServerInstance->Logs->Log("USERS", DEBUG, "Failed to remove user from vector");
582 CullResult FakeUser::cull()
584 // Fake users don't quit, they just get culled.
586 ServerInstance->Users->clientlist->erase(nick);
587 ServerInstance->Users->uuidlist->erase(uuid);
591 void User::Oper(OperInfo* info)
593 if (this->IsModeSet('o'))
596 this->modes[UM_OPERATOR] = 1;
598 this->WriteServ("MODE %s :+o", this->nick.c_str());
599 FOREACH_MOD(I_OnOper, OnOper(this, info->name));
601 std::string opername;
602 if (info->oper_block)
603 opername = info->oper_block->getString("name");
607 LocalUser* l = IS_LOCAL(this);
608 std::string vhost = oper->getConfig("vhost");
610 l->ChangeDisplayedHost(vhost.c_str());
611 std::string opClass = oper->getConfig("class");
612 if (!opClass.empty())
613 l->SetClass(opClass);
616 ServerInstance->SNO->WriteToSnoMask('o',"%s (%s@%s) is now an IRC operator of type %s (using oper '%s')",
617 nick.c_str(), ident.c_str(), host.c_str(), oper->NameStr(), opername.c_str());
618 this->WriteNumeric(381, "%s :You are now %s %s", nick.c_str(), strchr("aeiouAEIOU", oper->name[0]) ? "an" : "a", oper->NameStr());
620 ServerInstance->Logs->Log("OPER", DEFAULT, "%s!%s@%s opered as type: %s", this->nick.c_str(), this->ident.c_str(), this->host.c_str(), oper->NameStr());
621 ServerInstance->Users->all_opers.push_back(this);
623 // Expand permissions from config for faster lookup
627 FOREACH_MOD(I_OnPostOper,OnPostOper(this, oper->name, opername));
630 void OperInfo::init()
632 AllowedOperCommands.clear();
633 AllowedPrivs.clear();
634 AllowedUserModes.reset();
635 AllowedChanModes.reset();
636 AllowedUserModes['o' - 'A'] = true; // Call me paranoid if you want.
638 for(std::vector<reference<ConfigTag> >::iterator iter = class_blocks.begin(); iter != class_blocks.end(); ++iter)
640 ConfigTag* tag = *iter;
641 std::string mycmd, mypriv;
642 /* Process commands */
643 irc::spacesepstream CommandList(tag->getString("commands"));
644 while (CommandList.GetToken(mycmd))
646 AllowedOperCommands.insert(mycmd);
649 irc::spacesepstream PrivList(tag->getString("privs"));
650 while (PrivList.GetToken(mypriv))
652 AllowedPrivs.insert(mypriv);
655 for (unsigned char* c = (unsigned char*)tag->getString("usermodes").c_str(); *c; ++c)
659 this->AllowedUserModes.set();
661 else if (*c >= 'A' && *c < 'z')
663 this->AllowedUserModes[*c - 'A'] = true;
667 for (unsigned char* c = (unsigned char*)tag->getString("chanmodes").c_str(); *c; ++c)
671 this->AllowedChanModes.set();
673 else if (*c >= 'A' && *c < 'z')
675 this->AllowedChanModes[*c - 'A'] = true;
687 * unset their oper type (what IS_OPER checks).
688 * note, order is important - this must come before modes as -o attempts
689 * to call UnOper. -- w00t
694 /* Remove all oper only modes from the user when the deoper - Bug #466*/
695 std::string moderemove("-");
697 for (unsigned char letter = 'A'; letter <= 'z'; letter++)
699 ModeHandler* mh = ServerInstance->Modes->FindMode(letter, MODETYPE_USER);
700 if (mh && mh->NeedsOper())
701 moderemove += letter;
705 std::vector<std::string> parameters;
706 parameters.push_back(this->nick);
707 parameters.push_back(moderemove);
709 ServerInstance->Parser->CallHandler("MODE", parameters, this);
711 /* remove the user from the oper list. Will remove multiple entries as a safeguard against bug #404 */
712 ServerInstance->Users->all_opers.remove(this);
714 this->modes[UM_OPERATOR] = 0;
717 /* adds or updates an entry in the whowas list */
718 void User::AddToWhoWas()
720 Module* whowas = ServerInstance->Modules->Find("cmd_whowas.so");
723 WhowasRequest req(NULL, whowas, WhowasRequest::WHOWAS_ADD);
730 * Check class restrictions
732 void LocalUser::CheckClass()
734 ConnectClass* a = this->MyClass;
738 ServerInstance->Users->QuitUser(this, "Access denied by configuration");
741 else if (a->type == CC_DENY)
743 ServerInstance->Users->QuitUser(this, a->config->getString("reason", "Unauthorised connection"));
746 else if ((a->GetMaxLocal()) && (ServerInstance->Users->LocalCloneCount(this) > a->GetMaxLocal()))
748 ServerInstance->Users->QuitUser(this, "No more connections allowed from your host via this connect class (local)");
750 ServerInstance->SNO->WriteToSnoMask('a', "WARNING: maximum LOCAL connections (%ld) exceeded for IP %s", a->GetMaxLocal(), this->GetIPString());
753 else if ((a->GetMaxGlobal()) && (ServerInstance->Users->GlobalCloneCount(this) > a->GetMaxGlobal()))
755 ServerInstance->Users->QuitUser(this, "No more connections allowed from your host via this connect class (global)");
757 ServerInstance->SNO->WriteToSnoMask('a', "WARNING: maximum GLOBAL connections (%ld) exceeded for IP %s", a->GetMaxGlobal(), this->GetIPString());
761 this->nping = ServerInstance->Time() + a->GetPingTime() + ServerInstance->Config->dns_timeout;
764 bool User::CheckLines(bool doZline)
766 const char* check[] = { "G" , "K", (doZline) ? "Z" : NULL, NULL };
770 for (int n = 0; check[n]; ++n)
772 XLine *r = ServerInstance->XLines->MatchesLine(check[n], this);
785 void LocalUser::FullConnect()
787 ServerInstance->stats->statsConnects++;
788 this->idle_lastmsg = ServerInstance->Time();
791 * You may be thinking "wtf, we checked this in User::AddClient!" - and yes, we did, BUT.
792 * At the time AddClient is called, we don't have a resolved host, by here we probably do - which
793 * may put the user into a totally seperate class with different restrictions! so we *must* check again.
794 * Don't remove this! -- w00t
804 this->WriteServ("NOTICE Auth :Welcome to \002%s\002!",ServerInstance->Config->Network.c_str());
805 this->WriteNumeric(RPL_WELCOME, "%s :Welcome to the %s IRC Network %s!%s@%s",this->nick.c_str(), ServerInstance->Config->Network.c_str(), this->nick.c_str(), this->ident.c_str(), this->host.c_str());
806 this->WriteNumeric(RPL_YOURHOSTIS, "%s :Your host is %s, running version InspIRCd-2.0",this->nick.c_str(),ServerInstance->Config->ServerName.c_str());
807 this->WriteNumeric(RPL_SERVERCREATED, "%s :This server was created %s %s", this->nick.c_str(), __TIME__, __DATE__);
808 this->WriteNumeric(RPL_SERVERVERSION, "%s %s InspIRCd-2.0 %s %s %s", this->nick.c_str(), ServerInstance->Config->ServerName.c_str(), ServerInstance->Modes->UserModeList().c_str(), ServerInstance->Modes->ChannelModeList().c_str(), ServerInstance->Modes->ParaModeList().c_str());
810 ServerInstance->Config->Send005(this);
811 this->WriteNumeric(RPL_YOURUUID, "%s %s :your unique ID", this->nick.c_str(), this->uuid.c_str());
814 if (ServerInstance->Users->unregistered_count)
815 ServerInstance->Users->unregistered_count--;
817 /* Trigger MOTD and LUSERS output, give modules a chance too */
818 ModResult MOD_RESULT;
819 std::string command("MOTD");
820 std::vector<std::string> parameters;
821 FIRST_MOD_RESULT(OnPreCommand, MOD_RESULT, (command, parameters, this, true, command));
823 ServerInstance->CallCommandHandler(command, parameters, this);
825 MOD_RESULT = MOD_RES_PASSTHRU;
827 FIRST_MOD_RESULT(OnPreCommand, MOD_RESULT, (command, parameters, this, true, command));
829 ServerInstance->CallCommandHandler(command, parameters, this);
831 if (ServerInstance->Config->RawLog)
832 WriteServ("PRIVMSG %s :*** Raw I/O logging is enabled on this server. All messages, passwords, and commands are being recorded.", nick.c_str());
835 * We don't set REG_ALL until triggering OnUserConnect, so some module events don't spew out stuff
836 * for a user that doesn't exist yet.
838 FOREACH_MOD(I_OnUserConnect,OnUserConnect(this));
840 this->registered = REG_ALL;
842 FOREACH_MOD(I_OnPostConnect,OnPostConnect(this));
844 ServerInstance->SNO->WriteToSnoMask('c',"Client connecting on port %d (class %s): %s!%s@%s [%s] [%s]",
845 this->GetServerPort(), this->MyClass->name.c_str(), this->nick.c_str(), this->ident.c_str(), this->host.c_str(), this->GetIPString(), this->fullname.c_str());
846 ServerInstance->Logs->Log("BANCACHE", DEBUG, "BanCache: Adding NEGATIVE hit for %s", this->GetIPString());
847 ServerInstance->BanCache->AddHit(this->GetIPString(), "", "");
848 // reset the flood penalty (which could have been raised due to things like auto +x)
849 CommandFloodPenalty = 0;
852 void User::InvalidateCache()
854 /* Invalidate cache */
855 cached_fullhost.clear();
856 cached_hostip.clear();
857 cached_makehost.clear();
858 cached_fullrealhost.clear();
861 bool User::ChangeNick(const std::string& newnick, bool force)
863 ModResult MOD_RESULT;
866 ServerInstance->NICKForced.set(this, 1);
867 FIRST_MOD_RESULT(OnUserPreNick, MOD_RESULT, (this, newnick));
868 ServerInstance->NICKForced.set(this, 0);
870 if (MOD_RESULT == MOD_RES_DENY)
872 ServerInstance->stats->statsCollisions++;
876 if (assign(newnick) == assign(nick))
878 // case change, don't need to check Q:lines and such
879 // and, if it's identical including case, we can leave right now
886 * Don't check Q:Lines if it's a server-enforced change, just on the off-chance some fucking *moron*
887 * tries to Q:Line SIDs, also, this means we just get our way period, as it really should be.
888 * Thanks Kein for finding this. -- w00t
890 * Also don't check Q:Lines for remote nickchanges, they should have our Q:Lines anyway to enforce themselves.
893 if (IS_LOCAL(this) && !force)
895 XLine* mq = ServerInstance->XLines->MatchesLine("Q",newnick);
898 if (this->registered == REG_ALL)
900 ServerInstance->SNO->WriteGlobalSno('a', "Q-Lined nickname %s from %s!%s@%s: %s",
901 newnick.c_str(), this->nick.c_str(), this->ident.c_str(), this->host.c_str(), mq->reason.c_str());
903 this->WriteNumeric(432, "%s %s :Invalid nickname: %s",this->nick.c_str(), newnick.c_str(), mq->reason.c_str());
907 if (ServerInstance->Config->RestrictBannedUsers)
909 for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
912 if (chan->GetPrefixValue(this) < VOICE_VALUE && chan->IsBanned(this))
914 this->WriteNumeric(404, "%s %s :Cannot send to channel (you're banned)", this->nick.c_str(), chan->name.c_str());
922 * Uh oh.. if the nickname is in use, and it's not in use by the person using it (doh) --
923 * then we have a potential collide. Check whether someone else is camping on the nick
924 * (i.e. connect -> send NICK, don't send USER.) If they are camping, force-change the
925 * camper to their UID, and allow the incoming nick change.
927 * If the guy using the nick is already using it, tell the incoming nick change to gtfo,
928 * because the nick is already (rightfully) in use. -- w00t
930 User* InUse = ServerInstance->FindNickOnly(newnick);
931 if (InUse && (InUse != this))
933 if (InUse->registered != REG_ALL)
935 /* force the camper to their UUID, and ask them to re-send a NICK. */
936 InUse->WriteTo(InUse, "NICK %s", InUse->uuid.c_str());
937 InUse->WriteNumeric(433, "%s %s :Nickname overruled.", InUse->nick.c_str(), InUse->nick.c_str());
939 ServerInstance->Users->clientlist->erase(InUse->nick);
940 (*(ServerInstance->Users->clientlist))[InUse->uuid] = InUse;
942 InUse->nick = InUse->uuid;
943 InUse->InvalidateCache();
944 InUse->registered &= ~REG_NICK;
948 /* No camping, tell the incoming user to stop trying to change nick ;p */
949 this->WriteNumeric(433, "%s %s :Nickname is already in use.", this->registered >= REG_NICK ? this->nick.c_str() : "*", newnick.c_str());
955 if (this->registered == REG_ALL)
956 this->WriteCommon("NICK %s",newnick.c_str());
957 std::string oldnick = nick;
961 ServerInstance->Users->clientlist->erase(oldnick);
962 (*(ServerInstance->Users->clientlist))[newnick] = this;
964 if (registered == REG_ALL)
965 FOREACH_MOD(I_OnUserPostNick,OnUserPostNick(this,oldnick));
970 int LocalUser::GetServerPort()
972 switch (this->server_sa.sa.sa_family)
975 return htons(this->server_sa.in6.sin6_port);
977 return htons(this->server_sa.in4.sin_port);
982 const char* User::GetIPString()
985 if (cachedip.empty())
987 irc::sockets::satoap(client_sa, cachedip, port);
988 /* IP addresses starting with a : on irc are a Bad Thing (tm) */
989 if (cachedip.c_str()[0] == ':')
990 cachedip.insert(0,1,'0');
993 return cachedip.c_str();
996 irc::sockets::cidr_mask User::GetCIDRMask()
999 switch (client_sa.sa.sa_family)
1002 range = ServerInstance->Config->c_ipv6_range;
1005 range = ServerInstance->Config->c_ipv4_range;
1008 return irc::sockets::cidr_mask(client_sa, range);
1011 bool User::SetClientIP(const char* sip)
1013 this->cachedip = "";
1014 return irc::sockets::aptosa(sip, 0, client_sa);
1017 static std::string wide_newline("\r\n");
1019 void User::Write(const std::string& text)
1023 void User::Write(const char *text, ...)
1027 void LocalUser::Write(const std::string& text)
1029 if (!ServerInstance->SE->BoundsCheckFd(&eh))
1032 if (text.length() > MAXBUF - 2)
1034 // this should happen rarely or never. Crop the string at 512 and try again.
1035 std::string try_again = text.substr(0, MAXBUF - 2);
1040 ServerInstance->Logs->Log("USEROUTPUT", RAWIO, "C[%s] O %s", uuid.c_str(), text.c_str());
1042 eh.AddWriteBuf(text);
1043 eh.AddWriteBuf(wide_newline);
1045 ServerInstance->stats->statsSent += text.length() + 2;
1046 this->bytes_out += text.length() + 2;
1052 void LocalUser::Write(const char *text, ...)
1055 char textbuffer[MAXBUF];
1057 va_start(argsPtr, text);
1058 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1061 this->Write(std::string(textbuffer));
1064 void User::WriteServ(const std::string& text)
1066 this->Write(":%s %s",ServerInstance->Config->ServerName.c_str(),text.c_str());
1070 * Same as Write(), except `text' is prefixed with `:server.name '.
1072 void User::WriteServ(const char* text, ...)
1075 char textbuffer[MAXBUF];
1077 va_start(argsPtr, text);
1078 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1081 this->WriteServ(std::string(textbuffer));
1085 void User::WriteNumeric(unsigned int numeric, const char* text, ...)
1088 char textbuffer[MAXBUF];
1090 va_start(argsPtr, text);
1091 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1094 this->WriteNumeric(numeric, std::string(textbuffer));
1097 void User::WriteNumeric(unsigned int numeric, const std::string &text)
1099 char textbuffer[MAXBUF];
1100 ModResult MOD_RESULT;
1102 FIRST_MOD_RESULT(OnNumeric, MOD_RESULT, (this, numeric, text));
1104 if (MOD_RESULT == MOD_RES_DENY)
1107 snprintf(textbuffer,MAXBUF,":%s %03u %s",ServerInstance->Config->ServerName.c_str(), numeric, text.c_str());
1108 this->Write(std::string(textbuffer));
1111 void User::WriteFrom(User *user, const std::string &text)
1115 snprintf(tb,MAXBUF,":%s %s",user->GetFullHost().c_str(),text.c_str());
1117 this->Write(std::string(tb));
1121 /* write text from an originating user to originating user */
1123 void User::WriteFrom(User *user, const char* text, ...)
1126 char textbuffer[MAXBUF];
1128 va_start(argsPtr, text);
1129 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1132 this->WriteFrom(user, std::string(textbuffer));
1136 /* write text to an destination user from a source user (e.g. user privmsg) */
1138 void User::WriteTo(User *dest, const char *data, ...)
1140 char textbuffer[MAXBUF];
1143 va_start(argsPtr, data);
1144 vsnprintf(textbuffer, MAXBUF, data, argsPtr);
1147 this->WriteTo(dest, std::string(textbuffer));
1150 void User::WriteTo(User *dest, const std::string &data)
1152 dest->WriteFrom(this, data);
1155 void User::WriteCommon(const char* text, ...)
1157 char textbuffer[MAXBUF];
1160 if (this->registered != REG_ALL || quitting)
1163 int len = snprintf(textbuffer,MAXBUF,":%s ",this->GetFullHost().c_str());
1165 va_start(argsPtr, text);
1166 vsnprintf(textbuffer + len, MAXBUF - len, text, argsPtr);
1169 this->WriteCommonRaw(std::string(textbuffer), true);
1172 void User::WriteCommonExcept(const char* text, ...)
1174 char textbuffer[MAXBUF];
1177 if (this->registered != REG_ALL || quitting)
1180 int len = snprintf(textbuffer,MAXBUF,":%s ",this->GetFullHost().c_str());
1182 va_start(argsPtr, text);
1183 vsnprintf(textbuffer + len, MAXBUF - len, text, argsPtr);
1186 this->WriteCommonRaw(std::string(textbuffer), false);
1189 void User::WriteCommonRaw(const std::string &line, bool include_self)
1191 if (this->registered != REG_ALL || quitting)
1194 LocalUser::already_sent_id++;
1196 UserChanList include_c(chans);
1197 std::map<User*,bool> exceptions;
1199 exceptions[this] = include_self;
1201 FOREACH_MOD(I_OnBuildNeighborList,OnBuildNeighborList(this, include_c, exceptions));
1203 for (std::map<User*,bool>::iterator i = exceptions.begin(); i != exceptions.end(); ++i)
1205 LocalUser* u = IS_LOCAL(i->first);
1206 if (u && !u->quitting)
1208 u->already_sent = LocalUser::already_sent_id;
1213 for (UCListIter v = include_c.begin(); v != include_c.end(); ++v)
1216 const UserMembList* ulist = c->GetUsers();
1217 for (UserMembList::const_iterator i = ulist->begin(); i != ulist->end(); i++)
1219 LocalUser* u = IS_LOCAL(i->first);
1220 if (u && !u->quitting && u->already_sent != LocalUser::already_sent_id)
1222 u->already_sent = LocalUser::already_sent_id;
1229 void User::WriteCommonQuit(const std::string &normal_text, const std::string &oper_text)
1234 if (this->registered != REG_ALL)
1237 already_sent_t uniq_id = ++LocalUser::already_sent_id;
1239 snprintf(tb1,MAXBUF,":%s QUIT :%s",this->GetFullHost().c_str(),normal_text.c_str());
1240 snprintf(tb2,MAXBUF,":%s QUIT :%s",this->GetFullHost().c_str(),oper_text.c_str());
1241 std::string out1 = tb1;
1242 std::string out2 = tb2;
1244 UserChanList include_c(chans);
1245 std::map<User*,bool> exceptions;
1247 FOREACH_MOD(I_OnBuildNeighborList,OnBuildNeighborList(this, include_c, exceptions));
1249 for (std::map<User*,bool>::iterator i = exceptions.begin(); i != exceptions.end(); ++i)
1251 LocalUser* u = IS_LOCAL(i->first);
1252 if (u && !u->quitting)
1254 u->already_sent = uniq_id;
1256 u->Write(IS_OPER(u) ? out2 : out1);
1259 for (UCListIter v = include_c.begin(); v != include_c.end(); ++v)
1261 const UserMembList* ulist = (*v)->GetUsers();
1262 for (UserMembList::const_iterator i = ulist->begin(); i != ulist->end(); i++)
1264 LocalUser* u = IS_LOCAL(i->first);
1265 if (u && !u->quitting && (u->already_sent != uniq_id))
1267 u->already_sent = uniq_id;
1268 u->Write(IS_OPER(u) ? out2 : out1);
1274 void LocalUser::SendText(const std::string& line)
1279 void RemoteUser::SendText(const std::string& line)
1281 ServerInstance->PI->PushToClient(this, line);
1284 void FakeUser::SendText(const std::string& line)
1288 void User::SendText(const char *text, ...)
1293 va_start(argsPtr, text);
1294 vsnprintf(line, MAXBUF, text, argsPtr);
1297 SendText(std::string(line));
1300 void User::SendText(const std::string &LinePrefix, std::stringstream &TextStream)
1303 int start_pos = LinePrefix.length();
1304 int pos = start_pos;
1305 memcpy(line, LinePrefix.data(), pos);
1307 while (TextStream >> Word)
1309 int len = Word.length();
1310 if (pos + len + 12 > MAXBUF)
1313 SendText(std::string(line));
1317 memcpy(line + pos + 1, Word.data(), len);
1321 SendText(std::string(line));
1324 /* return 0 or 1 depending if users u and u2 share one or more common channels
1325 * (used by QUIT, NICK etc which arent channel specific notices)
1327 * The old algorithm in 1.0 for this was relatively inefficient, iterating over
1328 * the first users channels then the second users channels within the outer loop,
1329 * therefore it was a maximum of x*y iterations (upon returning 0 and checking
1330 * all possible iterations). However this new function instead checks against the
1331 * channel's userlist in the inner loop which is a std::map<User*,User*>
1332 * and saves us time as we already know what pointer value we are after.
1333 * Don't quote me on the maths as i am not a mathematician or computer scientist,
1334 * but i believe this algorithm is now x+(log y) maximum iterations instead.
1336 bool User::SharesChannelWith(User *other)
1338 if ((!other) || (this->registered != REG_ALL) || (other->registered != REG_ALL))
1342 for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
1344 /* Eliminate the inner loop (which used to be ~equal in size to the outer loop)
1345 * by replacing it with a map::find which *should* be more efficient
1347 if ((*i)->HasUser(other))
1353 bool User::ChangeName(const char* gecos)
1355 if (!this->fullname.compare(gecos))
1360 ModResult MOD_RESULT;
1361 FIRST_MOD_RESULT(OnChangeLocalUserGECOS, MOD_RESULT, (IS_LOCAL(this),gecos));
1362 if (MOD_RESULT == MOD_RES_DENY)
1364 FOREACH_MOD(I_OnChangeName,OnChangeName(this,gecos));
1366 this->fullname.assign(gecos, 0, ServerInstance->Config->Limits.MaxGecos);
1371 void User::DoHostCycle(const std::string &quitline)
1373 char buffer[MAXBUF];
1375 if (!ServerInstance->Config->CycleHosts)
1378 already_sent_t silent_id = ++LocalUser::already_sent_id;
1379 already_sent_t seen_id = ++LocalUser::already_sent_id;
1381 UserChanList include_c(chans);
1382 std::map<User*,bool> exceptions;
1384 FOREACH_MOD(I_OnBuildNeighborList,OnBuildNeighborList(this, include_c, exceptions));
1386 for (std::map<User*,bool>::iterator i = exceptions.begin(); i != exceptions.end(); ++i)
1388 LocalUser* u = IS_LOCAL(i->first);
1389 if (u && !u->quitting)
1393 u->already_sent = seen_id;
1398 u->already_sent = silent_id;
1402 for (UCListIter v = include_c.begin(); v != include_c.end(); ++v)
1405 snprintf(buffer, MAXBUF, ":%s JOIN %s", GetFullHost().c_str(), c->name.c_str());
1406 std::string joinline(buffer);
1407 Membership* memb = c->GetUser(this);
1408 std::string modeline = memb->modes;
1409 if (modeline.length() > 0)
1411 for(unsigned int i=0; i < memb->modes.length(); i++)
1412 modeline.append(" ").append(nick);
1413 snprintf(buffer, MAXBUF, ":%s MODE %s +%s",
1414 ServerInstance->Config->CycleHostsFromUser ? GetFullHost().c_str() : ServerInstance->Config->ServerName.c_str(),
1415 c->name.c_str(), modeline.c_str());
1419 const UserMembList *ulist = c->GetUsers();
1420 for (UserMembList::const_iterator i = ulist->begin(); i != ulist->end(); i++)
1422 LocalUser* u = IS_LOCAL(i->first);
1423 if (u == NULL || u == this)
1425 if (u->already_sent == silent_id)
1428 if (u->already_sent != seen_id)
1431 u->already_sent = seen_id;
1434 if (modeline.length() > 0)
1440 bool User::ChangeDisplayedHost(const char* shost)
1447 ModResult MOD_RESULT;
1448 FIRST_MOD_RESULT(OnChangeLocalUserHost, MOD_RESULT, (IS_LOCAL(this),shost));
1449 if (MOD_RESULT == MOD_RES_DENY)
1453 FOREACH_MOD(I_OnChangeHost, OnChangeHost(this,shost));
1455 std::string quitstr = ":" + GetFullHost() + " QUIT :Changing host";
1457 /* Fix by Om: User::dhost is 65 long, this was truncating some long hosts */
1458 this->dhost.assign(shost, 0, 64);
1460 this->InvalidateCache();
1462 this->DoHostCycle(quitstr);
1465 this->WriteNumeric(RPL_YOURDISPLAYEDHOST, "%s %s :is now your displayed host",this->nick.c_str(),this->dhost.c_str());
1470 bool User::ChangeIdent(const char* newident)
1472 if (this->ident == newident)
1475 FOREACH_MOD(I_OnChangeIdent, OnChangeIdent(this,newident));
1477 std::string quitstr = ":" + GetFullHost() + " QUIT :Changing ident";
1479 this->ident.assign(newident, 0, ServerInstance->Config->Limits.IdentMax + 1);
1481 this->InvalidateCache();
1483 this->DoHostCycle(quitstr);
1488 void User::SendAll(const char* command, const char* text, ...)
1490 char textbuffer[MAXBUF];
1491 char formatbuffer[MAXBUF];
1494 va_start(argsPtr, text);
1495 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1498 snprintf(formatbuffer,MAXBUF,":%s %s $* :%s", this->GetFullHost().c_str(), command, textbuffer);
1499 std::string fmt = formatbuffer;
1501 for (std::vector<LocalUser*>::const_iterator i = ServerInstance->Users->local_users.begin(); i != ServerInstance->Users->local_users.end(); i++)
1508 std::string User::ChannelList(User* source, bool spy)
1512 for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
1515 /* If the target is the sender, neither +p nor +s is set, or
1516 * the channel contains the user, it is not a spy channel
1518 if (spy != (source == this || !(c->IsModeSet('p') || c->IsModeSet('s')) || c->HasUser(source)))
1519 list.append(c->GetPrefixChar(this)).append(c->name).append(" ");
1525 void User::SplitChanList(User* dest, const std::string &cl)
1528 std::ostringstream prefix;
1529 std::string::size_type start, pos, length;
1531 prefix << this->nick << " " << dest->nick << " :";
1532 line = prefix.str();
1533 int namelen = ServerInstance->Config->ServerName.length() + 6;
1535 for (start = 0; (pos = cl.find(' ', start)) != std::string::npos; start = pos+1)
1537 length = (pos == std::string::npos) ? cl.length() : pos;
1539 if (line.length() + namelen + length - start > 510)
1541 ServerInstance->SendWhoisLine(this, dest, 319, "%s", line.c_str());
1542 line = prefix.str();
1545 if(pos == std::string::npos)
1547 line.append(cl.substr(start, length - start));
1552 line.append(cl.substr(start, length - start + 1));
1556 if (line.length() != prefix.str().length())
1558 ServerInstance->SendWhoisLine(this, dest, 319, "%s", line.c_str());
1563 * Sets a user's connection class.
1564 * If the class name is provided, it will be used. Otherwise, the class will be guessed using host/ip/ident/etc.
1565 * NOTE: If the <ALLOW> or <DENY> tag specifies an ip, and this user resolves,
1566 * then their ip will be taken as 'priority' anyway, so for example,
1567 * <connect allow="127.0.0.1"> will match joe!bloggs@localhost
1569 void LocalUser::SetClass(const std::string &explicit_name)
1571 ConnectClass *found = NULL;
1573 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Setting connect class for UID %s", this->uuid.c_str());
1575 if (!explicit_name.empty())
1577 for (ClassVector::iterator i = ServerInstance->Config->Classes.begin(); i != ServerInstance->Config->Classes.end(); i++)
1579 ConnectClass* c = *i;
1581 if (explicit_name == c->name)
1583 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Explicitly set to %s", explicit_name.c_str());
1590 for (ClassVector::iterator i = ServerInstance->Config->Classes.begin(); i != ServerInstance->Config->Classes.end(); i++)
1592 ConnectClass* c = *i;
1593 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Checking %s", c->GetName().c_str());
1595 ModResult MOD_RESULT;
1596 FIRST_MOD_RESULT(OnSetConnectClass, MOD_RESULT, (this,c));
1597 if (MOD_RESULT == MOD_RES_DENY)
1599 if (MOD_RESULT == MOD_RES_ALLOW)
1601 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Class forced by module to %s", c->GetName().c_str());
1606 if (c->type == CC_NAMED)
1609 bool regdone = (registered != REG_NONE);
1610 if (c->config->getBool("registered", regdone) != regdone)
1613 /* check if host matches.. */
1614 if (!InspIRCd::MatchCIDR(this->GetIPString(), c->GetHost(), NULL) &&
1615 !InspIRCd::MatchCIDR(this->host, c->GetHost(), NULL))
1617 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "No host match (for %s)", c->GetHost().c_str());
1622 * deny change if change will take class over the limit check it HERE, not after we found a matching class,
1623 * because we should attempt to find another class if this one doesn't match us. -- w00t
1625 if (c->limit && (c->GetReferenceCount() >= c->limit))
1627 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "OOPS: Connect class limit (%lu) hit, denying", c->limit);
1631 /* if it requires a port ... */
1632 int port = c->config->getInt("port");
1635 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Requires port (%d)", port);
1637 /* and our port doesn't match, fail. */
1638 if (this->GetServerPort() != port)
1642 if (regdone && !c->config->getString("password").empty())
1644 if (ServerInstance->PassCompare(this, c->config->getString("password"), password, c->config->getString("hash")))
1646 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Bad password, skipping");
1651 /* we stop at the first class that meets ALL critera. */
1658 * Okay, assuming we found a class that matches.. switch us into that class, keeping refcounts up to date.
1666 /* looks up a users password for their connection class (<ALLOW>/<DENY> tags)
1667 * NOTE: If the <ALLOW> or <DENY> tag specifies an ip, and this user resolves,
1668 * then their ip will be taken as 'priority' anyway, so for example,
1669 * <connect allow="127.0.0.1"> will match joe!bloggs@localhost
1671 ConnectClass* LocalUser::GetClass()
1676 ConnectClass* User::GetClass()
1681 void User::PurgeEmptyChannels()
1683 // firstly decrement the count on each channel
1684 for (UCListIter f = this->chans.begin(); f != this->chans.end(); f++)
1693 const std::string& FakeUser::GetFullHost()
1695 if (!ServerInstance->Config->HideWhoisServer.empty())
1696 return ServerInstance->Config->HideWhoisServer;
1700 const std::string& FakeUser::GetFullRealHost()
1702 if (!ServerInstance->Config->HideWhoisServer.empty())
1703 return ServerInstance->Config->HideWhoisServer;
1707 ConnectClass::ConnectClass(ConfigTag* tag, char t, const std::string& mask)
1708 : config(tag), type(t), fakelag(true), name("unnamed"), registration_timeout(0), host(mask),
1709 pingtime(0), softsendqmax(0), hardsendqmax(0), recvqmax(0),
1710 penaltythreshold(0), commandrate(0), maxlocal(0), maxglobal(0), maxconnwarn(true), maxchans(0), limit(0)
1714 ConnectClass::ConnectClass(ConfigTag* tag, char t, const std::string& mask, const ConnectClass& parent)
1715 : config(tag), type(t), fakelag(parent.fakelag), name("unnamed"),
1716 registration_timeout(parent.registration_timeout), host(mask), pingtime(parent.pingtime),
1717 softsendqmax(parent.softsendqmax), hardsendqmax(parent.hardsendqmax), recvqmax(parent.recvqmax),
1718 penaltythreshold(parent.penaltythreshold), commandrate(parent.commandrate),
1719 maxlocal(parent.maxlocal), maxglobal(parent.maxglobal), maxconnwarn(parent.maxconnwarn), maxchans(parent.maxchans),
1724 void ConnectClass::Update(const ConnectClass* src)
1726 config = src->config;
1728 fakelag = src->fakelag;
1730 registration_timeout = src->registration_timeout;
1732 pingtime = src->pingtime;
1733 softsendqmax = src->softsendqmax;
1734 hardsendqmax = src->hardsendqmax;
1735 recvqmax = src->recvqmax;
1736 penaltythreshold = src->penaltythreshold;
1737 commandrate = src->commandrate;
1738 maxlocal = src->maxlocal;
1739 maxglobal = src->maxglobal;
1740 maxconnwarn = src->maxconnwarn;
1741 maxchans = src->maxchans;