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),
229 memcpy(&server_sa, servaddr, sizeof(irc::sockets::sockaddrs));
234 if (ServerInstance->Users->uuidlist->find(uuid) != ServerInstance->Users->uuidlist->end())
235 ServerInstance->Logs->Log("USERS", DEFAULT, "User destructor for %s called without cull", uuid.c_str());
238 const std::string& User::MakeHost()
240 if (!this->cached_makehost.empty())
241 return this->cached_makehost;
244 /* This is much faster than snprintf */
246 for(const char* n = ident.c_str(); *n; n++)
249 for(const char* n = host.c_str(); *n; n++)
253 this->cached_makehost.assign(nhost);
255 return this->cached_makehost;
258 const std::string& User::MakeHostIP()
260 if (!this->cached_hostip.empty())
261 return this->cached_hostip;
264 /* This is much faster than snprintf */
266 for(const char* n = ident.c_str(); *n; n++)
269 for(const char* n = this->GetIPString(); *n; n++)
273 this->cached_hostip = ihost;
275 return this->cached_hostip;
278 const std::string& User::GetFullHost()
280 if (!this->cached_fullhost.empty())
281 return this->cached_fullhost;
285 for(const char* n = nick.c_str(); *n; n++)
288 for(const char* n = ident.c_str(); *n; n++)
291 for(const char* n = dhost.c_str(); *n; n++)
295 this->cached_fullhost = result;
297 return this->cached_fullhost;
300 char* User::MakeWildHost()
302 static char nresult[MAXBUF];
304 *t++ = '*'; *t++ = '!';
305 *t++ = '*'; *t++ = '@';
306 for(const char* n = dhost.c_str(); *n; n++)
312 const std::string& User::GetFullRealHost()
314 if (!this->cached_fullrealhost.empty())
315 return this->cached_fullrealhost;
317 char fresult[MAXBUF];
319 for(const char* n = nick.c_str(); *n; n++)
322 for(const char* n = ident.c_str(); *n; n++)
325 for(const char* n = host.c_str(); *n; n++)
329 this->cached_fullrealhost = fresult;
331 return this->cached_fullrealhost;
334 bool LocalUser::IsInvited(const irc::string &channel)
336 time_t now = ServerInstance->Time();
337 InvitedList::iterator safei;
338 for (InvitedList::iterator i = invites.begin(); i != invites.end(); ++i)
340 if (channel == i->first)
342 if (i->second != 0 && now > i->second)
344 /* Expired invite, remove it. */
347 invites.erase(safei);
356 InvitedList* LocalUser::GetInviteList()
358 time_t now = ServerInstance->Time();
359 /* Weed out expired invites here. */
360 InvitedList::iterator safei;
361 for (InvitedList::iterator i = invites.begin(); i != invites.end(); ++i)
363 if (i->second != 0 && now > i->second)
365 /* Expired invite, remove it. */
368 invites.erase(safei);
374 void LocalUser::InviteTo(const irc::string &channel, time_t invtimeout)
376 time_t now = ServerInstance->Time();
377 if (invtimeout != 0 && now > invtimeout) return; /* Don't add invites that are expired from the get-go. */
378 for (InvitedList::iterator i = invites.begin(); i != invites.end(); ++i)
380 if (channel == i->first)
382 if (i->second != 0 && invtimeout > i->second)
384 i->second = invtimeout;
390 invites.push_back(std::make_pair(channel, invtimeout));
393 void LocalUser::RemoveInvite(const irc::string &channel)
395 for (InvitedList::iterator i = invites.begin(); i != invites.end(); i++)
397 if (channel == i->first)
405 bool User::HasModePermission(unsigned char, ModeType)
410 bool LocalUser::HasModePermission(unsigned char mode, ModeType type)
415 if (mode < 'A' || mode > ('A' + 64)) return false;
417 return ((type == MODETYPE_USER ? oper->AllowedUserModes : oper->AllowedChanModes))[(mode - 'A')];
421 * users on remote servers can completely bypass all permissions based checks.
422 * This prevents desyncs when one server has different type/class tags to another.
423 * That having been said, this does open things up to the possibility of source changes
424 * allowing remote kills, etc - but if they have access to the src, they most likely have
425 * access to the conf - so it's an end to a means either way.
427 bool User::HasPermission(const std::string&)
432 bool LocalUser::HasPermission(const std::string &command)
434 // are they even an oper at all?
440 if (oper->AllowedOperCommands.find(command) != oper->AllowedOperCommands.end())
442 else if (oper->AllowedOperCommands.find("*") != oper->AllowedOperCommands.end())
448 bool User::HasPrivPermission(const std::string &privstr, bool noisy)
453 bool LocalUser::HasPrivPermission(const std::string &privstr, bool noisy)
458 this->WriteServ("NOTICE %s :You are not an oper", this->nick.c_str());
462 if (oper->AllowedPrivs.find(privstr) != oper->AllowedPrivs.end())
466 else if (oper->AllowedPrivs.find("*") != oper->AllowedPrivs.end())
472 this->WriteServ("NOTICE %s :Oper type %s does not have access to priv %s", this->nick.c_str(), oper->NameStr(), privstr.c_str());
476 void UserIOHandler::OnDataReady()
481 if (recvq.length() > user->MyClass->GetRecvqMax() && !user->HasPrivPermission("users/flood/increased-buffers"))
483 ServerInstance->Users->QuitUser(user, "RecvQ exceeded");
484 ServerInstance->SNO->WriteToSnoMask('a', "User %s RecvQ of %lu exceeds connect class maximum of %lu",
485 user->nick.c_str(), (unsigned long)recvq.length(), user->MyClass->GetRecvqMax());
487 unsigned long sendqmax = ULONG_MAX;
488 if (!user->HasPrivPermission("users/flood/increased-buffers"))
489 sendqmax = user->MyClass->GetSendqSoftMax();
490 unsigned long penaltymax = ULONG_MAX;
491 if (!user->HasPrivPermission("users/flood/no-fakelag"))
492 penaltymax = user->MyClass->GetPenaltyThreshold() * 1000;
494 while (user->CommandFloodPenalty < penaltymax && getSendQSize() < sendqmax)
497 line.reserve(MAXBUF);
498 std::string::size_type qpos = 0;
499 while (qpos < recvq.length())
501 char c = recvq[qpos++];
512 if (line.length() < MAXBUF - 2)
515 // if we got here, the recvq ran out before we found a newline
518 // just found a newline. Terminate the string, and pull it out of recvq
519 recvq = recvq.substr(qpos);
521 // TODO should this be moved to when it was inserted in recvq?
522 ServerInstance->stats->statsRecv += qpos;
523 user->bytes_in += qpos;
526 ServerInstance->Parser->ProcessBuffer(line, user);
530 if (user->CommandFloodPenalty >= penaltymax && !user->MyClass->fakelag)
531 ServerInstance->Users->QuitUser(user, "Excess Flood");
534 void UserIOHandler::AddWriteBuf(const std::string &data)
536 if (user->quitting_sendq)
538 if (!user->quitting && getSendQSize() + data.length() > user->MyClass->GetSendqHardMax() &&
539 !user->HasPrivPermission("users/flood/increased-buffers"))
541 user->quitting_sendq = true;
542 ServerInstance->GlobalCulls.AddSQItem(user);
546 // We still want to append data to the sendq of a quitting user,
547 // e.g. their ERROR message that says 'closing link'
552 void UserIOHandler::OnError(BufferedSocketError)
554 ServerInstance->Users->QuitUser(user, getError());
557 CullResult User::cull()
560 ServerInstance->Users->QuitUser(this, "Culled without QuitUser");
561 PurgeEmptyChannels();
563 this->InvalidateCache();
565 if (client_sa.sa.sa_family != AF_UNSPEC)
566 ServerInstance->Users->RemoveCloneCounts(this);
568 return Extensible::cull();
571 CullResult LocalUser::cull()
573 std::vector<LocalUser*>::iterator x = find(ServerInstance->Users->local_users.begin(),ServerInstance->Users->local_users.end(),this);
574 if (x != ServerInstance->Users->local_users.end())
575 ServerInstance->Users->local_users.erase(x);
577 ServerInstance->Logs->Log("USERS", DEBUG, "Failed to remove user from vector");
583 CullResult FakeUser::cull()
585 // Fake users don't quit, they just get culled.
587 ServerInstance->Users->clientlist->erase(nick);
588 ServerInstance->Users->uuidlist->erase(uuid);
592 void User::Oper(OperInfo* info)
594 if (this->IsModeSet('o'))
597 this->modes[UM_OPERATOR] = 1;
599 this->WriteServ("MODE %s :+o", this->nick.c_str());
600 FOREACH_MOD(I_OnOper, OnOper(this, info->name));
602 std::string opername;
603 if (info->oper_block)
604 opername = info->oper_block->getString("name");
608 LocalUser* l = IS_LOCAL(this);
609 std::string vhost = oper->getConfig("vhost");
611 l->ChangeDisplayedHost(vhost.c_str());
612 std::string opClass = oper->getConfig("class");
613 if (!opClass.empty())
614 l->SetClass(opClass);
617 ServerInstance->SNO->WriteToSnoMask('o',"%s (%s@%s) is now an IRC operator of type %s (using oper '%s')",
618 nick.c_str(), ident.c_str(), host.c_str(), oper->NameStr(), opername.c_str());
619 this->WriteNumeric(381, "%s :You are now %s %s", nick.c_str(), strchr("aeiouAEIOU", oper->name[0]) ? "an" : "a", oper->NameStr());
621 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());
622 ServerInstance->Users->all_opers.push_back(this);
624 // Expand permissions from config for faster lookup
628 FOREACH_MOD(I_OnPostOper,OnPostOper(this, oper->name, opername));
631 void OperInfo::init()
633 AllowedOperCommands.clear();
634 AllowedPrivs.clear();
635 AllowedUserModes.reset();
636 AllowedChanModes.reset();
637 AllowedUserModes['o' - 'A'] = true; // Call me paranoid if you want.
639 for(std::vector<reference<ConfigTag> >::iterator iter = class_blocks.begin(); iter != class_blocks.end(); ++iter)
641 ConfigTag* tag = *iter;
642 std::string mycmd, mypriv;
643 /* Process commands */
644 irc::spacesepstream CommandList(tag->getString("commands"));
645 while (CommandList.GetToken(mycmd))
647 AllowedOperCommands.insert(mycmd);
650 irc::spacesepstream PrivList(tag->getString("privs"));
651 while (PrivList.GetToken(mypriv))
653 AllowedPrivs.insert(mypriv);
656 for (unsigned char* c = (unsigned char*)tag->getString("usermodes").c_str(); *c; ++c)
660 this->AllowedUserModes.set();
662 else if (*c >= 'A' && *c < 'z')
664 this->AllowedUserModes[*c - 'A'] = true;
668 for (unsigned char* c = (unsigned char*)tag->getString("chanmodes").c_str(); *c; ++c)
672 this->AllowedChanModes.set();
674 else if (*c >= 'A' && *c < 'z')
676 this->AllowedChanModes[*c - 'A'] = true;
688 * unset their oper type (what IS_OPER checks).
689 * note, order is important - this must come before modes as -o attempts
690 * to call UnOper. -- w00t
695 /* Remove all oper only modes from the user when the deoper - Bug #466*/
696 std::string moderemove("-");
698 for (unsigned char letter = 'A'; letter <= 'z'; letter++)
700 ModeHandler* mh = ServerInstance->Modes->FindMode(letter, MODETYPE_USER);
701 if (mh && mh->NeedsOper())
702 moderemove += letter;
706 std::vector<std::string> parameters;
707 parameters.push_back(this->nick);
708 parameters.push_back(moderemove);
710 ServerInstance->Parser->CallHandler("MODE", parameters, this);
712 /* remove the user from the oper list. Will remove multiple entries as a safeguard against bug #404 */
713 ServerInstance->Users->all_opers.remove(this);
715 this->modes[UM_OPERATOR] = 0;
718 /* adds or updates an entry in the whowas list */
719 void User::AddToWhoWas()
721 Module* whowas = ServerInstance->Modules->Find("cmd_whowas.so");
724 WhowasRequest req(NULL, whowas, WhowasRequest::WHOWAS_ADD);
731 * Check class restrictions
733 void LocalUser::CheckClass()
735 ConnectClass* a = this->MyClass;
739 ServerInstance->Users->QuitUser(this, "Access denied by configuration");
742 else if (a->type == CC_DENY)
744 ServerInstance->Users->QuitUser(this, a->config->getString("reason", "Unauthorised connection"));
747 else if ((a->GetMaxLocal()) && (ServerInstance->Users->LocalCloneCount(this) > a->GetMaxLocal()))
749 ServerInstance->Users->QuitUser(this, "No more connections allowed from your host via this connect class (local)");
751 ServerInstance->SNO->WriteToSnoMask('a', "WARNING: maximum LOCAL connections (%ld) exceeded for IP %s", a->GetMaxLocal(), this->GetIPString());
754 else if ((a->GetMaxGlobal()) && (ServerInstance->Users->GlobalCloneCount(this) > a->GetMaxGlobal()))
756 ServerInstance->Users->QuitUser(this, "No more connections allowed from your host via this connect class (global)");
758 ServerInstance->SNO->WriteToSnoMask('a', "WARNING: maximum GLOBAL connections (%ld) exceeded for IP %s", a->GetMaxGlobal(), this->GetIPString());
762 this->nping = ServerInstance->Time() + a->GetPingTime() + ServerInstance->Config->dns_timeout;
765 bool User::CheckLines(bool doZline)
767 const char* check[] = { "G" , "K", (doZline) ? "Z" : NULL, NULL };
771 for (int n = 0; check[n]; ++n)
773 XLine *r = ServerInstance->XLines->MatchesLine(check[n], this);
786 void LocalUser::FullConnect()
788 ServerInstance->stats->statsConnects++;
789 this->idle_lastmsg = ServerInstance->Time();
792 * You may be thinking "wtf, we checked this in User::AddClient!" - and yes, we did, BUT.
793 * At the time AddClient is called, we don't have a resolved host, by here we probably do - which
794 * may put the user into a totally seperate class with different restrictions! so we *must* check again.
795 * Don't remove this! -- w00t
805 this->WriteServ("NOTICE Auth :Welcome to \002%s\002!",ServerInstance->Config->Network.c_str());
806 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());
807 this->WriteNumeric(RPL_YOURHOSTIS, "%s :Your host is %s, running version InspIRCd-2.0",this->nick.c_str(),ServerInstance->Config->ServerName.c_str());
808 this->WriteNumeric(RPL_SERVERCREATED, "%s :This server was created %s %s", this->nick.c_str(), __TIME__, __DATE__);
809 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());
811 ServerInstance->Config->Send005(this);
812 this->WriteNumeric(RPL_YOURUUID, "%s %s :your unique ID", this->nick.c_str(), this->uuid.c_str());
815 if (ServerInstance->Users->unregistered_count)
816 ServerInstance->Users->unregistered_count--;
818 /* Trigger MOTD and LUSERS output, give modules a chance too */
819 ModResult MOD_RESULT;
820 std::string command("MOTD");
821 std::vector<std::string> parameters;
822 FIRST_MOD_RESULT(OnPreCommand, MOD_RESULT, (command, parameters, this, true, command));
824 ServerInstance->CallCommandHandler(command, parameters, this);
826 MOD_RESULT = MOD_RES_PASSTHRU;
828 FIRST_MOD_RESULT(OnPreCommand, MOD_RESULT, (command, parameters, this, true, command));
830 ServerInstance->CallCommandHandler(command, parameters, this);
832 if (ServerInstance->Config->RawLog)
833 WriteServ("PRIVMSG %s :*** Raw I/O logging is enabled on this server. All messages, passwords, and commands are being recorded.", nick.c_str());
836 * We don't set REG_ALL until triggering OnUserConnect, so some module events don't spew out stuff
837 * for a user that doesn't exist yet.
839 FOREACH_MOD(I_OnUserConnect,OnUserConnect(this));
841 this->registered = REG_ALL;
843 FOREACH_MOD(I_OnPostConnect,OnPostConnect(this));
845 ServerInstance->SNO->WriteToSnoMask('c',"Client connecting on port %d (class %s): %s!%s@%s [%s] [%s]",
846 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());
847 ServerInstance->Logs->Log("BANCACHE", DEBUG, "BanCache: Adding NEGATIVE hit for %s", this->GetIPString());
848 ServerInstance->BanCache->AddHit(this->GetIPString(), "", "");
849 // reset the flood penalty (which could have been raised due to things like auto +x)
850 CommandFloodPenalty = 0;
853 void User::InvalidateCache()
855 /* Invalidate cache */
856 cached_fullhost.clear();
857 cached_hostip.clear();
858 cached_makehost.clear();
859 cached_fullrealhost.clear();
862 bool User::ChangeNick(const std::string& newnick, bool force)
864 ModResult MOD_RESULT;
867 ServerInstance->NICKForced.set(this, 1);
868 FIRST_MOD_RESULT(OnUserPreNick, MOD_RESULT, (this, newnick));
869 ServerInstance->NICKForced.set(this, 0);
871 if (MOD_RESULT == MOD_RES_DENY)
873 ServerInstance->stats->statsCollisions++;
877 if (assign(newnick) == assign(nick))
879 // case change, don't need to check Q:lines and such
880 // and, if it's identical including case, we can leave right now
887 * Don't check Q:Lines if it's a server-enforced change, just on the off-chance some fucking *moron*
888 * tries to Q:Line SIDs, also, this means we just get our way period, as it really should be.
889 * Thanks Kein for finding this. -- w00t
891 * Also don't check Q:Lines for remote nickchanges, they should have our Q:Lines anyway to enforce themselves.
894 if (IS_LOCAL(this) && !force)
896 XLine* mq = ServerInstance->XLines->MatchesLine("Q",newnick);
899 if (this->registered == REG_ALL)
901 ServerInstance->SNO->WriteGlobalSno('a', "Q-Lined nickname %s from %s!%s@%s: %s",
902 newnick.c_str(), this->nick.c_str(), this->ident.c_str(), this->host.c_str(), mq->reason.c_str());
904 this->WriteNumeric(432, "%s %s :Invalid nickname: %s",this->nick.c_str(), newnick.c_str(), mq->reason.c_str());
908 if (ServerInstance->Config->RestrictBannedUsers)
910 for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
913 if (chan->GetPrefixValue(this) < VOICE_VALUE && chan->IsBanned(this))
915 this->WriteNumeric(404, "%s %s :Cannot send to channel (you're banned)", this->nick.c_str(), chan->name.c_str());
923 * Uh oh.. if the nickname is in use, and it's not in use by the person using it (doh) --
924 * then we have a potential collide. Check whether someone else is camping on the nick
925 * (i.e. connect -> send NICK, don't send USER.) If they are camping, force-change the
926 * camper to their UID, and allow the incoming nick change.
928 * If the guy using the nick is already using it, tell the incoming nick change to gtfo,
929 * because the nick is already (rightfully) in use. -- w00t
931 User* InUse = ServerInstance->FindNickOnly(newnick);
932 if (InUse && (InUse != this))
934 if (InUse->registered != REG_ALL)
936 /* force the camper to their UUID, and ask them to re-send a NICK. */
937 InUse->WriteTo(InUse, "NICK %s", InUse->uuid.c_str());
938 InUse->WriteNumeric(433, "%s %s :Nickname overruled.", InUse->nick.c_str(), InUse->nick.c_str());
940 ServerInstance->Users->clientlist->erase(InUse->nick);
941 (*(ServerInstance->Users->clientlist))[InUse->uuid] = InUse;
943 InUse->nick = InUse->uuid;
944 InUse->InvalidateCache();
945 InUse->registered &= ~REG_NICK;
949 /* No camping, tell the incoming user to stop trying to change nick ;p */
950 this->WriteNumeric(433, "%s %s :Nickname is already in use.", this->registered >= REG_NICK ? this->nick.c_str() : "*", newnick.c_str());
956 if (this->registered == REG_ALL)
957 this->WriteCommon("NICK %s",newnick.c_str());
958 std::string oldnick = nick;
962 ServerInstance->Users->clientlist->erase(oldnick);
963 (*(ServerInstance->Users->clientlist))[newnick] = this;
965 if (registered == REG_ALL)
966 FOREACH_MOD(I_OnUserPostNick,OnUserPostNick(this,oldnick));
971 int LocalUser::GetServerPort()
973 switch (this->server_sa.sa.sa_family)
976 return htons(this->server_sa.in6.sin6_port);
978 return htons(this->server_sa.in4.sin_port);
983 const char* User::GetIPString()
986 if (cachedip.empty())
988 irc::sockets::satoap(client_sa, cachedip, port);
989 /* IP addresses starting with a : on irc are a Bad Thing (tm) */
990 if (cachedip.c_str()[0] == ':')
991 cachedip.insert(0,1,'0');
994 return cachedip.c_str();
997 irc::sockets::cidr_mask User::GetCIDRMask()
1000 switch (client_sa.sa.sa_family)
1003 range = ServerInstance->Config->c_ipv6_range;
1006 range = ServerInstance->Config->c_ipv4_range;
1009 return irc::sockets::cidr_mask(client_sa, range);
1012 bool User::SetClientIP(irc::sockets::sockaddrs *sa)
1014 memcpy(&client_sa, sa, sizeof(irc::sockets::sockaddrs));
1019 bool User::SetClientIP(const char* sip)
1021 irc::sockets::sockaddrs sa;
1023 this->cachedip = "";
1024 if (!irc::sockets::aptosa(sip, 0, sa))
1027 return SetClientIP(&sa);
1030 static std::string wide_newline("\r\n");
1032 void User::Write(const std::string& text)
1036 void User::Write(const char *text, ...)
1040 void LocalUser::Write(const std::string& text)
1042 if (!ServerInstance->SE->BoundsCheckFd(&eh))
1045 if (text.length() > MAXBUF - 2)
1047 // this should happen rarely or never. Crop the string at 512 and try again.
1048 std::string try_again = text.substr(0, MAXBUF - 2);
1053 ServerInstance->Logs->Log("USEROUTPUT", RAWIO, "C[%s] O %s", uuid.c_str(), text.c_str());
1055 eh.AddWriteBuf(text);
1056 eh.AddWriteBuf(wide_newline);
1058 ServerInstance->stats->statsSent += text.length() + 2;
1059 this->bytes_out += text.length() + 2;
1065 void LocalUser::Write(const char *text, ...)
1068 char textbuffer[MAXBUF];
1070 va_start(argsPtr, text);
1071 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1074 this->Write(std::string(textbuffer));
1077 void User::WriteServ(const std::string& text)
1079 this->Write(":%s %s",ServerInstance->Config->ServerName.c_str(),text.c_str());
1083 * Same as Write(), except `text' is prefixed with `:server.name '.
1085 void User::WriteServ(const char* text, ...)
1088 char textbuffer[MAXBUF];
1090 va_start(argsPtr, text);
1091 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1094 this->WriteServ(std::string(textbuffer));
1098 void User::WriteNumeric(unsigned int numeric, const char* text, ...)
1101 char textbuffer[MAXBUF];
1103 va_start(argsPtr, text);
1104 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1107 this->WriteNumeric(numeric, std::string(textbuffer));
1110 void User::WriteNumeric(unsigned int numeric, const std::string &text)
1112 char textbuffer[MAXBUF];
1113 ModResult MOD_RESULT;
1115 FIRST_MOD_RESULT(OnNumeric, MOD_RESULT, (this, numeric, text));
1117 if (MOD_RESULT == MOD_RES_DENY)
1120 snprintf(textbuffer,MAXBUF,":%s %03u %s",ServerInstance->Config->ServerName.c_str(), numeric, text.c_str());
1121 this->Write(std::string(textbuffer));
1124 void User::WriteFrom(User *user, const std::string &text)
1128 snprintf(tb,MAXBUF,":%s %s",user->GetFullHost().c_str(),text.c_str());
1130 this->Write(std::string(tb));
1134 /* write text from an originating user to originating user */
1136 void User::WriteFrom(User *user, const char* text, ...)
1139 char textbuffer[MAXBUF];
1141 va_start(argsPtr, text);
1142 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1145 this->WriteFrom(user, std::string(textbuffer));
1149 /* write text to an destination user from a source user (e.g. user privmsg) */
1151 void User::WriteTo(User *dest, const char *data, ...)
1153 char textbuffer[MAXBUF];
1156 va_start(argsPtr, data);
1157 vsnprintf(textbuffer, MAXBUF, data, argsPtr);
1160 this->WriteTo(dest, std::string(textbuffer));
1163 void User::WriteTo(User *dest, const std::string &data)
1165 dest->WriteFrom(this, data);
1168 void User::WriteCommon(const char* text, ...)
1170 char textbuffer[MAXBUF];
1173 if (this->registered != REG_ALL || quitting)
1176 int len = snprintf(textbuffer,MAXBUF,":%s ",this->GetFullHost().c_str());
1178 va_start(argsPtr, text);
1179 vsnprintf(textbuffer + len, MAXBUF - len, text, argsPtr);
1182 this->WriteCommonRaw(std::string(textbuffer), true);
1185 void User::WriteCommonExcept(const char* text, ...)
1187 char textbuffer[MAXBUF];
1190 if (this->registered != REG_ALL || quitting)
1193 int len = snprintf(textbuffer,MAXBUF,":%s ",this->GetFullHost().c_str());
1195 va_start(argsPtr, text);
1196 vsnprintf(textbuffer + len, MAXBUF - len, text, argsPtr);
1199 this->WriteCommonRaw(std::string(textbuffer), false);
1202 void User::WriteCommonRaw(const std::string &line, bool include_self)
1204 if (this->registered != REG_ALL || quitting)
1207 LocalUser::already_sent_id++;
1209 UserChanList include_c(chans);
1210 std::map<User*,bool> exceptions;
1212 exceptions[this] = include_self;
1214 FOREACH_MOD(I_OnBuildNeighborList,OnBuildNeighborList(this, include_c, exceptions));
1216 for (std::map<User*,bool>::iterator i = exceptions.begin(); i != exceptions.end(); ++i)
1218 LocalUser* u = IS_LOCAL(i->first);
1219 if (u && !u->quitting)
1221 u->already_sent = LocalUser::already_sent_id;
1226 for (UCListIter v = include_c.begin(); v != include_c.end(); ++v)
1229 const UserMembList* ulist = c->GetUsers();
1230 for (UserMembList::const_iterator i = ulist->begin(); i != ulist->end(); i++)
1232 LocalUser* u = IS_LOCAL(i->first);
1233 if (u && !u->quitting && u->already_sent != LocalUser::already_sent_id)
1235 u->already_sent = LocalUser::already_sent_id;
1242 void User::WriteCommonQuit(const std::string &normal_text, const std::string &oper_text)
1247 if (this->registered != REG_ALL)
1250 already_sent_t uniq_id = ++LocalUser::already_sent_id;
1252 snprintf(tb1,MAXBUF,":%s QUIT :%s",this->GetFullHost().c_str(),normal_text.c_str());
1253 snprintf(tb2,MAXBUF,":%s QUIT :%s",this->GetFullHost().c_str(),oper_text.c_str());
1254 std::string out1 = tb1;
1255 std::string out2 = tb2;
1257 UserChanList include_c(chans);
1258 std::map<User*,bool> exceptions;
1260 FOREACH_MOD(I_OnBuildNeighborList,OnBuildNeighborList(this, include_c, exceptions));
1262 for (std::map<User*,bool>::iterator i = exceptions.begin(); i != exceptions.end(); ++i)
1264 LocalUser* u = IS_LOCAL(i->first);
1265 if (u && !u->quitting)
1267 u->already_sent = uniq_id;
1269 u->Write(IS_OPER(u) ? out2 : out1);
1272 for (UCListIter v = include_c.begin(); v != include_c.end(); ++v)
1274 const UserMembList* ulist = (*v)->GetUsers();
1275 for (UserMembList::const_iterator i = ulist->begin(); i != ulist->end(); i++)
1277 LocalUser* u = IS_LOCAL(i->first);
1278 if (u && !u->quitting && (u->already_sent != uniq_id))
1280 u->already_sent = uniq_id;
1281 u->Write(IS_OPER(u) ? out2 : out1);
1287 void LocalUser::SendText(const std::string& line)
1292 void RemoteUser::SendText(const std::string& line)
1294 ServerInstance->PI->PushToClient(this, line);
1297 void FakeUser::SendText(const std::string& line)
1301 void User::SendText(const char *text, ...)
1306 va_start(argsPtr, text);
1307 vsnprintf(line, MAXBUF, text, argsPtr);
1310 SendText(std::string(line));
1313 void User::SendText(const std::string &LinePrefix, std::stringstream &TextStream)
1316 int start_pos = LinePrefix.length();
1317 int pos = start_pos;
1318 memcpy(line, LinePrefix.data(), pos);
1320 while (TextStream >> Word)
1322 int len = Word.length();
1323 if (pos + len + 12 > MAXBUF)
1326 SendText(std::string(line));
1330 memcpy(line + pos + 1, Word.data(), len);
1334 SendText(std::string(line));
1337 /* return 0 or 1 depending if users u and u2 share one or more common channels
1338 * (used by QUIT, NICK etc which arent channel specific notices)
1340 * The old algorithm in 1.0 for this was relatively inefficient, iterating over
1341 * the first users channels then the second users channels within the outer loop,
1342 * therefore it was a maximum of x*y iterations (upon returning 0 and checking
1343 * all possible iterations). However this new function instead checks against the
1344 * channel's userlist in the inner loop which is a std::map<User*,User*>
1345 * and saves us time as we already know what pointer value we are after.
1346 * Don't quote me on the maths as i am not a mathematician or computer scientist,
1347 * but i believe this algorithm is now x+(log y) maximum iterations instead.
1349 bool User::SharesChannelWith(User *other)
1351 if ((!other) || (this->registered != REG_ALL) || (other->registered != REG_ALL))
1355 for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
1357 /* Eliminate the inner loop (which used to be ~equal in size to the outer loop)
1358 * by replacing it with a map::find which *should* be more efficient
1360 if ((*i)->HasUser(other))
1366 bool User::ChangeName(const char* gecos)
1368 if (!this->fullname.compare(gecos))
1373 ModResult MOD_RESULT;
1374 FIRST_MOD_RESULT(OnChangeLocalUserGECOS, MOD_RESULT, (IS_LOCAL(this),gecos));
1375 if (MOD_RESULT == MOD_RES_DENY)
1377 FOREACH_MOD(I_OnChangeName,OnChangeName(this,gecos));
1379 this->fullname.assign(gecos, 0, ServerInstance->Config->Limits.MaxGecos);
1384 void User::DoHostCycle(const std::string &quitline)
1386 char buffer[MAXBUF];
1388 if (!ServerInstance->Config->CycleHosts)
1391 already_sent_t silent_id = ++LocalUser::already_sent_id;
1392 already_sent_t seen_id = ++LocalUser::already_sent_id;
1394 UserChanList include_c(chans);
1395 std::map<User*,bool> exceptions;
1397 FOREACH_MOD(I_OnBuildNeighborList,OnBuildNeighborList(this, include_c, exceptions));
1399 for (std::map<User*,bool>::iterator i = exceptions.begin(); i != exceptions.end(); ++i)
1401 LocalUser* u = IS_LOCAL(i->first);
1402 if (u && !u->quitting)
1406 u->already_sent = seen_id;
1411 u->already_sent = silent_id;
1415 for (UCListIter v = include_c.begin(); v != include_c.end(); ++v)
1418 snprintf(buffer, MAXBUF, ":%s JOIN %s", GetFullHost().c_str(), c->name.c_str());
1419 std::string joinline(buffer);
1420 Membership* memb = c->GetUser(this);
1421 std::string modeline = memb->modes;
1422 if (modeline.length() > 0)
1424 for(unsigned int i=0; i < memb->modes.length(); i++)
1425 modeline.append(" ").append(nick);
1426 snprintf(buffer, MAXBUF, ":%s MODE %s +%s",
1427 ServerInstance->Config->CycleHostsFromUser ? GetFullHost().c_str() : ServerInstance->Config->ServerName.c_str(),
1428 c->name.c_str(), modeline.c_str());
1432 const UserMembList *ulist = c->GetUsers();
1433 for (UserMembList::const_iterator i = ulist->begin(); i != ulist->end(); i++)
1435 LocalUser* u = IS_LOCAL(i->first);
1436 if (u == NULL || u == this)
1438 if (u->already_sent == silent_id)
1441 if (u->already_sent != seen_id)
1444 u->already_sent = seen_id;
1447 if (modeline.length() > 0)
1453 bool User::ChangeDisplayedHost(const char* shost)
1460 ModResult MOD_RESULT;
1461 FIRST_MOD_RESULT(OnChangeLocalUserHost, MOD_RESULT, (IS_LOCAL(this),shost));
1462 if (MOD_RESULT == MOD_RES_DENY)
1466 FOREACH_MOD(I_OnChangeHost, OnChangeHost(this,shost));
1468 std::string quitstr = ":" + GetFullHost() + " QUIT :Changing host";
1470 /* Fix by Om: User::dhost is 65 long, this was truncating some long hosts */
1471 this->dhost.assign(shost, 0, 64);
1473 this->InvalidateCache();
1475 this->DoHostCycle(quitstr);
1478 this->WriteNumeric(RPL_YOURDISPLAYEDHOST, "%s %s :is now your displayed host",this->nick.c_str(),this->dhost.c_str());
1483 bool User::ChangeIdent(const char* newident)
1485 if (this->ident == newident)
1488 FOREACH_MOD(I_OnChangeIdent, OnChangeIdent(this,newident));
1490 std::string quitstr = ":" + GetFullHost() + " QUIT :Changing ident";
1492 this->ident.assign(newident, 0, ServerInstance->Config->Limits.IdentMax + 1);
1494 this->InvalidateCache();
1496 this->DoHostCycle(quitstr);
1501 void User::SendAll(const char* command, const char* text, ...)
1503 char textbuffer[MAXBUF];
1504 char formatbuffer[MAXBUF];
1507 va_start(argsPtr, text);
1508 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1511 snprintf(formatbuffer,MAXBUF,":%s %s $* :%s", this->GetFullHost().c_str(), command, textbuffer);
1512 std::string fmt = formatbuffer;
1514 for (std::vector<LocalUser*>::const_iterator i = ServerInstance->Users->local_users.begin(); i != ServerInstance->Users->local_users.end(); i++)
1521 std::string User::ChannelList(User* source, bool spy)
1525 for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
1528 /* If the target is the sender, neither +p nor +s is set, or
1529 * the channel contains the user, it is not a spy channel
1531 if (spy != (source == this || !(c->IsModeSet('p') || c->IsModeSet('s')) || c->HasUser(source)))
1532 list.append(c->GetPrefixChar(this)).append(c->name).append(" ");
1538 void User::SplitChanList(User* dest, const std::string &cl)
1541 std::ostringstream prefix;
1542 std::string::size_type start, pos, length;
1544 prefix << this->nick << " " << dest->nick << " :";
1545 line = prefix.str();
1546 int namelen = ServerInstance->Config->ServerName.length() + 6;
1548 for (start = 0; (pos = cl.find(' ', start)) != std::string::npos; start = pos+1)
1550 length = (pos == std::string::npos) ? cl.length() : pos;
1552 if (line.length() + namelen + length - start > 510)
1554 ServerInstance->SendWhoisLine(this, dest, 319, "%s", line.c_str());
1555 line = prefix.str();
1558 if(pos == std::string::npos)
1560 line.append(cl.substr(start, length - start));
1565 line.append(cl.substr(start, length - start + 1));
1569 if (line.length() != prefix.str().length())
1571 ServerInstance->SendWhoisLine(this, dest, 319, "%s", line.c_str());
1576 * Sets a user's connection class.
1577 * If the class name is provided, it will be used. Otherwise, the class will be guessed using host/ip/ident/etc.
1578 * NOTE: If the <ALLOW> or <DENY> tag specifies an ip, and this user resolves,
1579 * then their ip will be taken as 'priority' anyway, so for example,
1580 * <connect allow="127.0.0.1"> will match joe!bloggs@localhost
1582 void LocalUser::SetClass(const std::string &explicit_name)
1584 ConnectClass *found = NULL;
1586 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Setting connect class for UID %s", this->uuid.c_str());
1588 if (!explicit_name.empty())
1590 for (ClassVector::iterator i = ServerInstance->Config->Classes.begin(); i != ServerInstance->Config->Classes.end(); i++)
1592 ConnectClass* c = *i;
1594 if (explicit_name == c->name)
1596 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Explicitly set to %s", explicit_name.c_str());
1603 for (ClassVector::iterator i = ServerInstance->Config->Classes.begin(); i != ServerInstance->Config->Classes.end(); i++)
1605 ConnectClass* c = *i;
1606 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Checking %s", c->GetName().c_str());
1608 ModResult MOD_RESULT;
1609 FIRST_MOD_RESULT(OnSetConnectClass, MOD_RESULT, (this,c));
1610 if (MOD_RESULT == MOD_RES_DENY)
1612 if (MOD_RESULT == MOD_RES_ALLOW)
1614 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Class forced by module to %s", c->GetName().c_str());
1619 if (c->type == CC_NAMED)
1622 bool regdone = (registered != REG_NONE);
1623 if (c->config->getBool("registered", regdone) != regdone)
1626 /* check if host matches.. */
1627 if (!InspIRCd::MatchCIDR(this->GetIPString(), c->GetHost(), NULL) &&
1628 !InspIRCd::MatchCIDR(this->host, c->GetHost(), NULL))
1630 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "No host match (for %s)", c->GetHost().c_str());
1635 * deny change if change will take class over the limit check it HERE, not after we found a matching class,
1636 * because we should attempt to find another class if this one doesn't match us. -- w00t
1638 if (c->limit && (c->GetReferenceCount() >= c->limit))
1640 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "OOPS: Connect class limit (%lu) hit, denying", c->limit);
1644 /* if it requires a port ... */
1645 int port = c->config->getInt("port");
1648 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Requires port (%d)", port);
1650 /* and our port doesn't match, fail. */
1651 if (this->GetServerPort() != port)
1655 if (regdone && !c->config->getString("password").empty())
1657 if (ServerInstance->PassCompare(this, c->config->getString("password"), password, c->config->getString("hash")))
1659 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Bad password, skipping");
1664 /* we stop at the first class that meets ALL critera. */
1671 * Okay, assuming we found a class that matches.. switch us into that class, keeping refcounts up to date.
1679 /* looks up a users password for their connection class (<ALLOW>/<DENY> tags)
1680 * NOTE: If the <ALLOW> or <DENY> tag specifies an ip, and this user resolves,
1681 * then their ip will be taken as 'priority' anyway, so for example,
1682 * <connect allow="127.0.0.1"> will match joe!bloggs@localhost
1684 ConnectClass* LocalUser::GetClass()
1689 ConnectClass* User::GetClass()
1694 void User::PurgeEmptyChannels()
1696 // firstly decrement the count on each channel
1697 for (UCListIter f = this->chans.begin(); f != this->chans.end(); f++)
1706 const std::string& FakeUser::GetFullHost()
1708 if (!ServerInstance->Config->HideWhoisServer.empty())
1709 return ServerInstance->Config->HideWhoisServer;
1713 const std::string& FakeUser::GetFullRealHost()
1715 if (!ServerInstance->Config->HideWhoisServer.empty())
1716 return ServerInstance->Config->HideWhoisServer;
1720 ConnectClass::ConnectClass(ConfigTag* tag, char t, const std::string& mask)
1721 : config(tag), type(t), fakelag(true), name("unnamed"), registration_timeout(0), host(mask),
1722 pingtime(0), softsendqmax(0), hardsendqmax(0), recvqmax(0),
1723 penaltythreshold(0), commandrate(0), maxlocal(0), maxglobal(0), maxconnwarn(true), maxchans(0), limit(0)
1727 ConnectClass::ConnectClass(ConfigTag* tag, char t, const std::string& mask, const ConnectClass& parent)
1728 : config(tag), type(t), fakelag(parent.fakelag), name("unnamed"),
1729 registration_timeout(parent.registration_timeout), host(mask), pingtime(parent.pingtime),
1730 softsendqmax(parent.softsendqmax), hardsendqmax(parent.hardsendqmax), recvqmax(parent.recvqmax),
1731 penaltythreshold(parent.penaltythreshold), commandrate(parent.commandrate),
1732 maxlocal(parent.maxlocal), maxglobal(parent.maxglobal), maxconnwarn(parent.maxconnwarn), maxchans(parent.maxchans),
1737 void ConnectClass::Update(const ConnectClass* src)
1739 config = src->config;
1741 fakelag = src->fakelag;
1743 registration_timeout = src->registration_timeout;
1745 pingtime = src->pingtime;
1746 softsendqmax = src->softsendqmax;
1747 hardsendqmax = src->hardsendqmax;
1748 recvqmax = src->recvqmax;
1749 penaltythreshold = src->penaltythreshold;
1750 commandrate = src->commandrate;
1751 maxlocal = src->maxlocal;
1752 maxglobal = src->maxglobal;
1753 maxconnwarn = src->maxconnwarn;
1754 maxchans = src->maxchans;