1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd: (C) 2002-2010 InspIRCd Development Team
6 * See: http://wiki.inspircd.org/Credits
8 * This program is free but copyrighted software; see
9 * the file COPYING for details.
11 * ---------------------------------------------------
16 #include "socketengine.h"
19 #include "commands/cmd_whowas.h"
21 already_sent_t LocalUser::already_sent_id = 0;
23 std::string User::ProcessNoticeMasks(const char *sm)
25 bool adding = true, oldadding = false;
40 for (unsigned char d = 'a'; d <= 'z'; d++)
42 if (!ServerInstance->SNO->masks[d - 'a'].Description.empty())
44 if ((!IsNoticeMaskSet(d) && adding) || (IsNoticeMaskSet(d) && !adding))
46 if ((oldadding != adding) || (!output.length()))
47 output += (adding ? '+' : '-');
49 this->SetNoticeMask(d, adding);
55 if ((!IsNoticeMaskSet(u) && adding) || (IsNoticeMaskSet(u) && !adding))
57 if ((oldadding != adding) || (!output.length()))
58 output += (adding ? '+' : '-');
60 this->SetNoticeMask(u, adding);
71 if ((!IsNoticeMaskSet(*c) && adding) || (IsNoticeMaskSet(*c) && !adding))
73 if ((oldadding != adding) || (!output.length()))
74 output += (adding ? '+' : '-');
76 this->SetNoticeMask(*c, adding);
82 this->WriteNumeric(ERR_UNKNOWNSNOMASK, "%s %c :is unknown snomask char to me", this->nick.c_str(), *c);
91 std::string s = this->FormatNoticeMasks();
94 this->modes[UM_SNOMASK] = false;
100 void LocalUser::StartDNSLookup()
105 const char* sip = this->GetIPString();
106 UserResolver *res_reverse;
108 QueryType resolvtype = this->client_sa.sa.sa_family == AF_INET6 ? DNS_QUERY_PTR6 : DNS_QUERY_PTR4;
109 res_reverse = new UserResolver(this, sip, resolvtype, cached);
111 ServerInstance->AddResolver(res_reverse, cached);
113 catch (CoreException& e)
115 ServerInstance->Logs->Log("USERS", DEBUG,"Error in resolver: %s",e.GetReason());
119 bool User::IsNoticeMaskSet(unsigned char sm)
123 return (snomasks[sm-65]);
126 void User::SetNoticeMask(unsigned char sm, bool value)
130 snomasks[sm-65] = value;
133 const char* User::FormatNoticeMasks()
135 static char data[MAXBUF];
138 for (int n = 0; n < 64; n++)
141 data[offset++] = n+65;
148 bool User::IsModeSet(unsigned char m)
152 return (modes[m-65]);
155 void User::SetMode(unsigned char m, bool value)
162 const char* User::FormatModes(bool showparameters)
164 static char data[MAXBUF];
168 for (unsigned char n = 0; n < 64; n++)
172 data[offset++] = n + 65;
173 ModeHandler* mh = ServerInstance->Modes->FindMode(n + 65, MODETYPE_USER);
174 if (showparameters && mh && mh->GetNumParams(true))
176 std::string p = mh->GetUserParameter(this);
178 params.append(" ").append(p);
183 strlcat(data, params.c_str(), MAXBUF);
187 User::User(const std::string &uid, const std::string& sid, int type)
188 : uuid(uid), server(sid), usertype(type)
190 age = ServerInstance->Time();
191 signon = idle_lastmsg = 0;
193 quietquit = quitting = exempt = dns_done = false;
194 client_sa.sa.sa_family = AF_UNSPEC;
196 ServerInstance->Logs->Log("USERS", DEBUG, "New UUID for user: %s", uuid.c_str());
198 user_hash::iterator finduuid = ServerInstance->Users->uuidlist->find(uuid);
199 if (finduuid == ServerInstance->Users->uuidlist->end())
200 (*ServerInstance->Users->uuidlist)[uuid] = this;
202 throw CoreException("Duplicate UUID "+std::string(uuid)+" in User constructor");
205 LocalUser::LocalUser(int myfd, irc::sockets::sockaddrs* client, irc::sockets::sockaddrs* servaddr)
206 : User(ServerInstance->GetUID(), ServerInstance->Config->ServerName, USERTYPE_LOCAL), eh(this),
207 bytes_in(0), bytes_out(0), cmds_in(0), cmds_out(0), nping(0), CommandFloodPenalty(0),
212 memcpy(&client_sa, client, sizeof(irc::sockets::sockaddrs));
213 memcpy(&server_sa, servaddr, sizeof(irc::sockets::sockaddrs));
218 if (ServerInstance->Users->uuidlist->find(uuid) != ServerInstance->Users->uuidlist->end())
219 ServerInstance->Logs->Log("USERS", DEFAULT, "User destructor for %s called without cull", uuid.c_str());
222 const std::string& User::MakeHost()
224 if (!this->cached_makehost.empty())
225 return this->cached_makehost;
228 /* This is much faster than snprintf */
230 for(const char* n = ident.c_str(); *n; n++)
233 for(const char* n = host.c_str(); *n; n++)
237 this->cached_makehost.assign(nhost);
239 return this->cached_makehost;
242 const std::string& User::MakeHostIP()
244 if (!this->cached_hostip.empty())
245 return this->cached_hostip;
248 /* This is much faster than snprintf */
250 for(const char* n = ident.c_str(); *n; n++)
253 for(const char* n = this->GetIPString(); *n; n++)
257 this->cached_hostip = ihost;
259 return this->cached_hostip;
262 const std::string& User::GetFullHost()
264 if (!this->cached_fullhost.empty())
265 return this->cached_fullhost;
269 for(const char* n = nick.c_str(); *n; n++)
272 for(const char* n = ident.c_str(); *n; n++)
275 for(const char* n = dhost.c_str(); *n; n++)
279 this->cached_fullhost = result;
281 return this->cached_fullhost;
284 char* User::MakeWildHost()
286 static char nresult[MAXBUF];
288 *t++ = '*'; *t++ = '!';
289 *t++ = '*'; *t++ = '@';
290 for(const char* n = dhost.c_str(); *n; n++)
296 const std::string& User::GetFullRealHost()
298 if (!this->cached_fullrealhost.empty())
299 return this->cached_fullrealhost;
301 char fresult[MAXBUF];
303 for(const char* n = nick.c_str(); *n; n++)
306 for(const char* n = ident.c_str(); *n; n++)
309 for(const char* n = host.c_str(); *n; n++)
313 this->cached_fullrealhost = fresult;
315 return this->cached_fullrealhost;
318 bool LocalUser::IsInvited(const irc::string &channel)
320 time_t now = ServerInstance->Time();
321 InvitedList::iterator safei;
322 for (InvitedList::iterator i = invites.begin(); i != invites.end(); ++i)
324 if (channel == i->first)
326 if (i->second != 0 && now > i->second)
328 /* Expired invite, remove it. */
331 invites.erase(safei);
340 InvitedList* LocalUser::GetInviteList()
342 time_t now = ServerInstance->Time();
343 /* Weed out expired invites here. */
344 InvitedList::iterator safei;
345 for (InvitedList::iterator i = invites.begin(); i != invites.end(); ++i)
347 if (i->second != 0 && now > i->second)
349 /* Expired invite, remove it. */
352 invites.erase(safei);
358 void LocalUser::InviteTo(const irc::string &channel, time_t invtimeout)
360 time_t now = ServerInstance->Time();
361 if (invtimeout != 0 && now > invtimeout) return; /* Don't add invites that are expired from the get-go. */
362 for (InvitedList::iterator i = invites.begin(); i != invites.end(); ++i)
364 if (channel == i->first)
366 if (i->second != 0 && invtimeout > i->second)
368 i->second = invtimeout;
374 invites.push_back(std::make_pair(channel, invtimeout));
377 void LocalUser::RemoveInvite(const irc::string &channel)
379 for (InvitedList::iterator i = invites.begin(); i != invites.end(); i++)
381 if (channel == i->first)
389 bool User::HasModePermission(unsigned char, ModeType)
394 bool LocalUser::HasModePermission(unsigned char mode, ModeType type)
399 if (mode < 'A' || mode > ('A' + 64)) return false;
401 return ((type == MODETYPE_USER ? oper->AllowedUserModes : oper->AllowedChanModes))[(mode - 'A')];
405 * users on remote servers can completely bypass all permissions based checks.
406 * This prevents desyncs when one server has different type/class tags to another.
407 * That having been said, this does open things up to the possibility of source changes
408 * allowing remote kills, etc - but if they have access to the src, they most likely have
409 * access to the conf - so it's an end to a means either way.
411 bool User::HasPermission(const std::string&)
416 bool LocalUser::HasPermission(const std::string &command)
418 // are they even an oper at all?
424 if (oper->AllowedOperCommands.find(command) != oper->AllowedOperCommands.end())
426 else if (oper->AllowedOperCommands.find("*") != oper->AllowedOperCommands.end())
432 bool User::HasPrivPermission(const std::string &privstr, bool noisy)
437 bool LocalUser::HasPrivPermission(const std::string &privstr, bool noisy)
442 this->WriteServ("NOTICE %s :You are not an oper", this->nick.c_str());
446 if (oper->AllowedPrivs.find(privstr) != oper->AllowedPrivs.end())
450 else if (oper->AllowedPrivs.find("*") != oper->AllowedPrivs.end())
456 this->WriteServ("NOTICE %s :Oper type %s does not have access to priv %s", this->nick.c_str(), oper->NameStr(), privstr.c_str());
460 void UserIOHandler::OnDataReady()
465 if (recvq.length() > user->MyClass->GetRecvqMax() && !user->HasPrivPermission("users/flood/increased-buffers"))
467 ServerInstance->Users->QuitUser(user, "RecvQ exceeded");
468 ServerInstance->SNO->WriteToSnoMask('a', "User %s RecvQ of %lu exceeds connect class maximum of %lu",
469 user->nick.c_str(), (unsigned long)recvq.length(), user->MyClass->GetRecvqMax());
471 unsigned long sendqmax = ULONG_MAX;
472 if (!user->HasPrivPermission("users/flood/increased-buffers"))
473 sendqmax = user->MyClass->GetSendqSoftMax();
474 unsigned long penaltymax = ULONG_MAX;
475 if (!user->HasPrivPermission("users/flood/no-fakelag"))
476 penaltymax = user->MyClass->GetPenaltyThreshold() * 1000;
478 while (user->CommandFloodPenalty < penaltymax && getSendQSize() < sendqmax)
481 line.reserve(MAXBUF);
482 std::string::size_type qpos = 0;
483 while (qpos < recvq.length())
485 char c = recvq[qpos++];
496 if (line.length() < MAXBUF - 2)
499 // if we got here, the recvq ran out before we found a newline
502 // just found a newline. Terminate the string, and pull it out of recvq
503 recvq = recvq.substr(qpos);
505 // TODO should this be moved to when it was inserted in recvq?
506 ServerInstance->stats->statsRecv += qpos;
507 user->bytes_in += qpos;
510 ServerInstance->Parser->ProcessBuffer(line, user);
514 // Add pseudo-penalty so that we continue processing after sendq recedes
515 if (user->CommandFloodPenalty == 0 && getSendQSize() >= sendqmax)
516 user->CommandFloodPenalty++;
517 if (user->CommandFloodPenalty >= penaltymax && !user->MyClass->fakelag)
518 ServerInstance->Users->QuitUser(user, "Excess Flood");
521 void UserIOHandler::AddWriteBuf(const std::string &data)
523 if (!user->quitting && getSendQSize() + data.length() > user->MyClass->GetSendqHardMax() &&
524 !user->HasPrivPermission("users/flood/increased-buffers"))
527 * Quit the user FIRST, because otherwise we could recurse
528 * here and hit the same limit.
530 ServerInstance->Users->QuitUser(user, "SendQ exceeded");
531 ServerInstance->SNO->WriteToSnoMask('a', "User %s SendQ exceeds connect class maximum of %lu",
532 user->nick.c_str(), user->MyClass->GetSendqHardMax());
536 // We still want to append data to the sendq of a quitting user,
537 // e.g. their ERROR message that says 'closing link'
542 void UserIOHandler::OnError(BufferedSocketError)
544 ServerInstance->Users->QuitUser(user, getError());
547 CullResult User::cull()
550 ServerInstance->Users->QuitUser(this, "Culled without QuitUser");
551 PurgeEmptyChannels();
553 this->InvalidateCache();
555 if (client_sa.sa.sa_family != AF_UNSPEC)
556 ServerInstance->Users->RemoveCloneCounts(this);
558 return Extensible::cull();
561 CullResult LocalUser::cull()
563 std::vector<LocalUser*>::iterator x = find(ServerInstance->Users->local_users.begin(),ServerInstance->Users->local_users.end(),this);
564 if (x != ServerInstance->Users->local_users.end())
565 ServerInstance->Users->local_users.erase(x);
567 ServerInstance->Logs->Log("USERS", DEBUG, "Failed to remove user from vector");
573 CullResult FakeUser::cull()
575 // Fake users don't quit, they just get culled.
577 ServerInstance->Users->clientlist->erase(nick);
578 ServerInstance->Users->uuidlist->erase(uuid);
582 void User::Oper(OperInfo* info)
584 if (this->IsModeSet('o'))
587 this->modes[UM_OPERATOR] = 1;
589 this->WriteServ("MODE %s :+o", this->nick.c_str());
590 FOREACH_MOD(I_OnOper, OnOper(this, info->name));
592 std::string opername;
593 if (info->oper_block)
594 opername = info->oper_block->getString("name");
598 LocalUser* l = IS_LOCAL(this);
599 std::string vhost = oper->getConfig("vhost");
601 l->ChangeDisplayedHost(vhost.c_str());
602 std::string opClass = oper->getConfig("class");
603 if (!opClass.empty())
604 l->SetClass(opClass);
607 ServerInstance->SNO->WriteToSnoMask('o',"%s (%s@%s) is now an IRC operator of type %s (using oper '%s')",
608 nick.c_str(), ident.c_str(), host.c_str(), oper->NameStr(), opername.c_str());
609 this->WriteNumeric(381, "%s :You are now %s %s", nick.c_str(), strchr("aeiouAEIOU", oper->name[0]) ? "an" : "a", oper->NameStr());
611 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());
612 ServerInstance->Users->all_opers.push_back(this);
614 // Expand permissions from config for faster lookup
618 FOREACH_MOD(I_OnPostOper,OnPostOper(this, oper->name, opername));
621 void OperInfo::init()
623 AllowedOperCommands.clear();
624 AllowedPrivs.clear();
625 AllowedUserModes.reset();
626 AllowedChanModes.reset();
627 AllowedUserModes['o' - 'A'] = true; // Call me paranoid if you want.
629 for(std::vector<reference<ConfigTag> >::iterator iter = class_blocks.begin(); iter != class_blocks.end(); ++iter)
631 ConfigTag* tag = *iter;
632 std::string mycmd, mypriv;
633 /* Process commands */
634 irc::spacesepstream CommandList(tag->getString("commands"));
635 while (CommandList.GetToken(mycmd))
637 AllowedOperCommands.insert(mycmd);
640 irc::spacesepstream PrivList(tag->getString("privs"));
641 while (PrivList.GetToken(mypriv))
643 AllowedPrivs.insert(mypriv);
646 for (unsigned char* c = (unsigned char*)tag->getString("usermodes").c_str(); *c; ++c)
650 this->AllowedUserModes.set();
654 this->AllowedUserModes[*c - 'A'] = true;
658 for (unsigned char* c = (unsigned char*)tag->getString("chanmodes").c_str(); *c; ++c)
662 this->AllowedChanModes.set();
666 this->AllowedChanModes[*c - 'A'] = true;
678 * unset their oper type (what IS_OPER checks).
679 * note, order is important - this must come before modes as -o attempts
680 * to call UnOper. -- w00t
685 /* Remove all oper only modes from the user when the deoper - Bug #466*/
686 std::string moderemove("-");
688 for (unsigned char letter = 'A'; letter <= 'z'; letter++)
690 ModeHandler* mh = ServerInstance->Modes->FindMode(letter, MODETYPE_USER);
691 if (mh && mh->NeedsOper())
692 moderemove += letter;
696 std::vector<std::string> parameters;
697 parameters.push_back(this->nick);
698 parameters.push_back(moderemove);
700 ServerInstance->Parser->CallHandler("MODE", parameters, this);
702 /* remove the user from the oper list. Will remove multiple entries as a safeguard against bug #404 */
703 ServerInstance->Users->all_opers.remove(this);
705 this->modes[UM_OPERATOR] = 0;
708 /* adds or updates an entry in the whowas list */
709 void User::AddToWhoWas()
711 Module* whowas = ServerInstance->Modules->Find("cmd_whowas.so");
714 WhowasRequest req(NULL, whowas, WhowasRequest::WHOWAS_ADD);
721 * Check class restrictions
723 void LocalUser::CheckClass()
725 ConnectClass* a = this->MyClass;
729 ServerInstance->Users->QuitUser(this, "Access denied by configuration");
731 else if (a->type == CC_DENY)
733 ServerInstance->Users->QuitUser(this, a->config->getString("reason", "Unauthorised connection"));
736 else if ((a->GetMaxLocal()) && (ServerInstance->Users->LocalCloneCount(this) > a->GetMaxLocal()))
738 ServerInstance->Users->QuitUser(this, "No more connections allowed from your host via this connect class (local)");
739 ServerInstance->SNO->WriteToSnoMask('a', "WARNING: maximum LOCAL connections (%ld) exceeded for IP %s", a->GetMaxLocal(), this->GetIPString());
742 else if ((a->GetMaxGlobal()) && (ServerInstance->Users->GlobalCloneCount(this) > a->GetMaxGlobal()))
744 ServerInstance->Users->QuitUser(this, "No more connections allowed from your host via this connect class (global)");
745 ServerInstance->SNO->WriteToSnoMask('a', "WARNING: maximum GLOBAL connections (%ld) exceeded for IP %s", a->GetMaxGlobal(), this->GetIPString());
749 this->nping = ServerInstance->Time() + a->GetPingTime() + ServerInstance->Config->dns_timeout;
752 bool User::CheckLines(bool doZline)
754 const char* check[] = { "G" , "K", (doZline) ? "Z" : NULL, NULL };
758 for (int n = 0; check[n]; ++n)
760 XLine *r = ServerInstance->XLines->MatchesLine(check[n], this);
773 void LocalUser::FullConnect()
775 ServerInstance->stats->statsConnects++;
776 this->idle_lastmsg = ServerInstance->Time();
779 * You may be thinking "wtf, we checked this in User::AddClient!" - and yes, we did, BUT.
780 * At the time AddClient is called, we don't have a resolved host, by here we probably do - which
781 * may put the user into a totally seperate class with different restrictions! so we *must* check again.
782 * Don't remove this! -- w00t
791 this->WriteServ("NOTICE Auth :Welcome to \002%s\002!",ServerInstance->Config->Network.c_str());
792 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());
793 this->WriteNumeric(RPL_YOURHOSTIS, "%s :Your host is %s, running version InspIRCd-2.0",this->nick.c_str(),ServerInstance->Config->ServerName.c_str());
794 this->WriteNumeric(RPL_SERVERCREATED, "%s :This server was created %s %s", this->nick.c_str(), __TIME__, __DATE__);
795 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());
797 ServerInstance->Config->Send005(this);
798 this->WriteNumeric(RPL_YOURUUID, "%s %s :your unique ID", this->nick.c_str(), this->uuid.c_str());
801 if (ServerInstance->Users->unregistered_count)
802 ServerInstance->Users->unregistered_count--;
804 /* Trigger MOTD and LUSERS output, give modules a chance too */
805 ModResult MOD_RESULT;
806 std::string command("MOTD");
807 std::vector<std::string> parameters;
808 FIRST_MOD_RESULT(OnPreCommand, MOD_RESULT, (command, parameters, this, true, command));
810 ServerInstance->CallCommandHandler(command, parameters, this);
812 MOD_RESULT = MOD_RES_PASSTHRU;
814 FIRST_MOD_RESULT(OnPreCommand, MOD_RESULT, (command, parameters, this, true, command));
816 ServerInstance->CallCommandHandler(command, parameters, this);
819 * We don't set REG_ALL until triggering OnUserConnect, so some module events don't spew out stuff
820 * for a user that doesn't exist yet.
822 FOREACH_MOD(I_OnUserConnect,OnUserConnect(this));
824 this->registered = REG_ALL;
826 FOREACH_MOD(I_OnPostConnect,OnPostConnect(this));
828 ServerInstance->SNO->WriteToSnoMask('c',"Client connecting on port %d: %s!%s@%s [%s] [%s]",
829 this->GetServerPort(), this->nick.c_str(), this->ident.c_str(), this->host.c_str(), this->GetIPString(), this->fullname.c_str());
830 ServerInstance->Logs->Log("BANCACHE", DEBUG, "BanCache: Adding NEGATIVE hit for %s", this->GetIPString());
831 ServerInstance->BanCache->AddHit(this->GetIPString(), "", "");
834 void User::InvalidateCache()
836 /* Invalidate cache */
837 cached_fullhost.clear();
838 cached_hostip.clear();
839 cached_makehost.clear();
840 cached_fullrealhost.clear();
843 bool User::ChangeNick(const std::string& newnick, bool force)
845 ModResult MOD_RESULT;
848 ServerInstance->NICKForced.set(this, 1);
849 FIRST_MOD_RESULT(OnUserPreNick, MOD_RESULT, (this, newnick));
850 ServerInstance->NICKForced.set(this, 0);
852 if (MOD_RESULT == MOD_RES_DENY)
854 ServerInstance->stats->statsCollisions++;
858 if (assign(newnick) == assign(nick))
860 // case change, don't need to check Q:lines and such
861 // and, if it's identical including case, we can leave right now
868 * Don't check Q:Lines if it's a server-enforced change, just on the off-chance some fucking *moron*
869 * tries to Q:Line SIDs, also, this means we just get our way period, as it really should be.
870 * Thanks Kein for finding this. -- w00t
872 * Also don't check Q:Lines for remote nickchanges, they should have our Q:Lines anyway to enforce themselves.
875 if (IS_LOCAL(this) && !force)
877 XLine* mq = ServerInstance->XLines->MatchesLine("Q",newnick);
880 if (this->registered == REG_ALL)
882 ServerInstance->SNO->WriteGlobalSno('a', "Q-Lined nickname %s from %s!%s@%s: %s",
883 newnick.c_str(), this->nick.c_str(), this->ident.c_str(), this->host.c_str(), mq->reason.c_str());
885 this->WriteNumeric(432, "%s %s :Invalid nickname: %s",this->nick.c_str(), newnick.c_str(), mq->reason.c_str());
889 if (ServerInstance->Config->RestrictBannedUsers)
891 for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
894 if (chan->GetPrefixValue(this) < VOICE_VALUE && chan->IsBanned(this))
896 this->WriteNumeric(404, "%s %s :Cannot send to channel (you're banned)", this->nick.c_str(), chan->name.c_str());
904 * Uh oh.. if the nickname is in use, and it's not in use by the person using it (doh) --
905 * then we have a potential collide. Check whether someone else is camping on the nick
906 * (i.e. connect -> send NICK, don't send USER.) If they are camping, force-change the
907 * camper to their UID, and allow the incoming nick change.
909 * If the guy using the nick is already using it, tell the incoming nick change to gtfo,
910 * because the nick is already (rightfully) in use. -- w00t
912 User* InUse = ServerInstance->FindNickOnly(newnick);
913 if (InUse && (InUse != this))
915 if (InUse->registered != REG_ALL)
917 /* force the camper to their UUID, and ask them to re-send a NICK. */
918 InUse->WriteTo(InUse, "NICK %s", InUse->uuid.c_str());
919 InUse->WriteNumeric(433, "%s %s :Nickname overruled.", InUse->nick.c_str(), InUse->nick.c_str());
921 ServerInstance->Users->clientlist->erase(InUse->nick);
922 (*(ServerInstance->Users->clientlist))[InUse->uuid] = InUse;
924 InUse->nick = InUse->uuid;
925 InUse->InvalidateCache();
926 InUse->registered &= ~REG_NICK;
930 /* No camping, tell the incoming user to stop trying to change nick ;p */
931 this->WriteNumeric(433, "%s %s :Nickname is already in use.", this->registered >= REG_NICK ? this->nick.c_str() : "*", newnick.c_str());
937 if (this->registered == REG_ALL)
938 this->WriteCommon("NICK %s",newnick.c_str());
939 std::string oldnick = nick;
943 ServerInstance->Users->clientlist->erase(oldnick);
944 (*(ServerInstance->Users->clientlist))[newnick] = this;
946 if (registered == REG_ALL)
947 FOREACH_MOD(I_OnUserPostNick,OnUserPostNick(this,oldnick));
952 int LocalUser::GetServerPort()
954 switch (this->server_sa.sa.sa_family)
957 return htons(this->server_sa.in6.sin6_port);
959 return htons(this->server_sa.in4.sin_port);
964 const char* User::GetIPString()
967 if (cachedip.empty())
969 irc::sockets::satoap(client_sa, cachedip, port);
970 /* IP addresses starting with a : on irc are a Bad Thing (tm) */
971 if (cachedip.c_str()[0] == ':')
972 cachedip.insert(0,1,'0');
975 return cachedip.c_str();
978 irc::sockets::cidr_mask User::GetCIDRMask()
981 switch (client_sa.sa.sa_family)
984 range = ServerInstance->Config->c_ipv6_range;
987 range = ServerInstance->Config->c_ipv4_range;
990 return irc::sockets::cidr_mask(client_sa, range);
993 bool User::SetClientIP(const char* sip)
996 return irc::sockets::aptosa(sip, 0, client_sa);
999 static std::string wide_newline("\r\n");
1001 void User::Write(const std::string& text)
1005 void User::Write(const char *text, ...)
1009 void LocalUser::Write(const std::string& text)
1011 if (!ServerInstance->SE->BoundsCheckFd(&eh))
1014 if (text.length() > MAXBUF - 2)
1016 // this should happen rarely or never. Crop the string at 512 and try again.
1017 std::string try_again = text.substr(0, MAXBUF - 2);
1022 ServerInstance->Logs->Log("USEROUTPUT", DEBUG,"C[%s] O %s", uuid.c_str(), text.c_str());
1024 eh.AddWriteBuf(text);
1025 eh.AddWriteBuf(wide_newline);
1027 ServerInstance->stats->statsSent += text.length() + 2;
1028 this->bytes_out += text.length() + 2;
1034 void LocalUser::Write(const char *text, ...)
1037 char textbuffer[MAXBUF];
1039 va_start(argsPtr, text);
1040 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1043 this->Write(std::string(textbuffer));
1046 void User::WriteServ(const std::string& text)
1048 this->Write(":%s %s",ServerInstance->Config->ServerName.c_str(),text.c_str());
1052 * Same as Write(), except `text' is prefixed with `:server.name '.
1054 void User::WriteServ(const char* text, ...)
1057 char textbuffer[MAXBUF];
1059 va_start(argsPtr, text);
1060 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1063 this->WriteServ(std::string(textbuffer));
1067 void User::WriteNumeric(unsigned int numeric, const char* text, ...)
1070 char textbuffer[MAXBUF];
1072 va_start(argsPtr, text);
1073 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1076 this->WriteNumeric(numeric, std::string(textbuffer));
1079 void User::WriteNumeric(unsigned int numeric, const std::string &text)
1081 char textbuffer[MAXBUF];
1082 ModResult MOD_RESULT;
1084 FIRST_MOD_RESULT(OnNumeric, MOD_RESULT, (this, numeric, text));
1086 if (MOD_RESULT == MOD_RES_DENY)
1089 snprintf(textbuffer,MAXBUF,":%s %03u %s",ServerInstance->Config->ServerName.c_str(), numeric, text.c_str());
1090 this->Write(std::string(textbuffer));
1093 void User::WriteFrom(User *user, const std::string &text)
1097 snprintf(tb,MAXBUF,":%s %s",user->GetFullHost().c_str(),text.c_str());
1099 this->Write(std::string(tb));
1103 /* write text from an originating user to originating user */
1105 void User::WriteFrom(User *user, const char* text, ...)
1108 char textbuffer[MAXBUF];
1110 va_start(argsPtr, text);
1111 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1114 this->WriteFrom(user, std::string(textbuffer));
1118 /* write text to an destination user from a source user (e.g. user privmsg) */
1120 void User::WriteTo(User *dest, const char *data, ...)
1122 char textbuffer[MAXBUF];
1125 va_start(argsPtr, data);
1126 vsnprintf(textbuffer, MAXBUF, data, argsPtr);
1129 this->WriteTo(dest, std::string(textbuffer));
1132 void User::WriteTo(User *dest, const std::string &data)
1134 dest->WriteFrom(this, data);
1137 void User::WriteCommon(const char* text, ...)
1139 char textbuffer[MAXBUF];
1142 if (this->registered != REG_ALL || quitting)
1145 int len = snprintf(textbuffer,MAXBUF,":%s ",this->GetFullHost().c_str());
1147 va_start(argsPtr, text);
1148 vsnprintf(textbuffer + len, MAXBUF - len, text, argsPtr);
1151 this->WriteCommonRaw(std::string(textbuffer), true);
1154 void User::WriteCommonExcept(const char* text, ...)
1156 char textbuffer[MAXBUF];
1159 if (this->registered != REG_ALL || quitting)
1162 int len = snprintf(textbuffer,MAXBUF,":%s ",this->GetFullHost().c_str());
1164 va_start(argsPtr, text);
1165 vsnprintf(textbuffer + len, MAXBUF - len, text, argsPtr);
1168 this->WriteCommonRaw(std::string(textbuffer), false);
1171 void User::WriteCommonRaw(const std::string &line, bool include_self)
1173 if (this->registered != REG_ALL || quitting)
1176 LocalUser::already_sent_id++;
1178 UserChanList include_c(chans);
1179 std::map<User*,bool> exceptions;
1181 exceptions[this] = include_self;
1183 FOREACH_MOD(I_OnBuildNeighborList,OnBuildNeighborList(this, include_c, exceptions));
1185 for (std::map<User*,bool>::iterator i = exceptions.begin(); i != exceptions.end(); ++i)
1187 LocalUser* u = IS_LOCAL(i->first);
1188 if (u && !u->quitting)
1190 u->already_sent = LocalUser::already_sent_id;
1195 for (UCListIter v = include_c.begin(); v != include_c.end(); ++v)
1198 const UserMembList* ulist = c->GetUsers();
1199 for (UserMembList::const_iterator i = ulist->begin(); i != ulist->end(); i++)
1201 LocalUser* u = IS_LOCAL(i->first);
1202 if (u && !u->quitting && u->already_sent != LocalUser::already_sent_id)
1204 u->already_sent = LocalUser::already_sent_id;
1211 void User::WriteCommonQuit(const std::string &normal_text, const std::string &oper_text)
1216 if (this->registered != REG_ALL)
1219 already_sent_t uniq_id = ++LocalUser::already_sent_id;
1221 snprintf(tb1,MAXBUF,":%s QUIT :%s",this->GetFullHost().c_str(),normal_text.c_str());
1222 snprintf(tb2,MAXBUF,":%s QUIT :%s",this->GetFullHost().c_str(),oper_text.c_str());
1223 std::string out1 = tb1;
1224 std::string out2 = tb2;
1226 UserChanList include_c(chans);
1227 std::map<User*,bool> exceptions;
1229 FOREACH_MOD(I_OnBuildNeighborList,OnBuildNeighborList(this, include_c, exceptions));
1231 for (std::map<User*,bool>::iterator i = exceptions.begin(); i != exceptions.end(); ++i)
1233 LocalUser* u = IS_LOCAL(i->first);
1234 if (u && !u->quitting)
1236 u->already_sent = uniq_id;
1238 u->Write(IS_OPER(u) ? out2 : out1);
1241 for (UCListIter v = include_c.begin(); v != include_c.end(); ++v)
1243 const UserMembList* ulist = (*v)->GetUsers();
1244 for (UserMembList::const_iterator i = ulist->begin(); i != ulist->end(); i++)
1246 LocalUser* u = IS_LOCAL(i->first);
1247 if (u && !u->quitting && (u->already_sent != uniq_id))
1249 u->already_sent = uniq_id;
1250 u->Write(IS_OPER(u) ? out2 : out1);
1256 void LocalUser::SendText(const std::string& line)
1261 void RemoteUser::SendText(const std::string& line)
1263 ServerInstance->PI->PushToClient(this, line);
1266 void FakeUser::SendText(const std::string& line)
1270 void User::SendText(const char *text, ...)
1275 va_start(argsPtr, text);
1276 vsnprintf(line, MAXBUF, text, argsPtr);
1279 SendText(std::string(line));
1282 void User::SendText(const std::string &LinePrefix, std::stringstream &TextStream)
1285 int start_pos = LinePrefix.length();
1286 int pos = start_pos;
1287 memcpy(line, LinePrefix.data(), pos);
1289 while (TextStream >> Word)
1291 int len = Word.length();
1292 if (pos + len + 12 > MAXBUF)
1295 SendText(std::string(line));
1299 memcpy(line + pos + 1, Word.data(), len);
1303 SendText(std::string(line));
1306 /* return 0 or 1 depending if users u and u2 share one or more common channels
1307 * (used by QUIT, NICK etc which arent channel specific notices)
1309 * The old algorithm in 1.0 for this was relatively inefficient, iterating over
1310 * the first users channels then the second users channels within the outer loop,
1311 * therefore it was a maximum of x*y iterations (upon returning 0 and checking
1312 * all possible iterations). However this new function instead checks against the
1313 * channel's userlist in the inner loop which is a std::map<User*,User*>
1314 * and saves us time as we already know what pointer value we are after.
1315 * Don't quote me on the maths as i am not a mathematician or computer scientist,
1316 * but i believe this algorithm is now x+(log y) maximum iterations instead.
1318 bool User::SharesChannelWith(User *other)
1320 if ((!other) || (this->registered != REG_ALL) || (other->registered != REG_ALL))
1324 for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
1326 /* Eliminate the inner loop (which used to be ~equal in size to the outer loop)
1327 * by replacing it with a map::find which *should* be more efficient
1329 if ((*i)->HasUser(other))
1335 bool User::ChangeName(const char* gecos)
1337 if (!this->fullname.compare(gecos))
1342 ModResult MOD_RESULT;
1343 FIRST_MOD_RESULT(OnChangeLocalUserGECOS, MOD_RESULT, (IS_LOCAL(this),gecos));
1344 if (MOD_RESULT == MOD_RES_DENY)
1346 FOREACH_MOD(I_OnChangeName,OnChangeName(this,gecos));
1348 this->fullname.assign(gecos, 0, ServerInstance->Config->Limits.MaxGecos);
1353 void User::DoHostCycle(const std::string &quitline)
1355 char buffer[MAXBUF];
1357 if (!ServerInstance->Config->CycleHosts)
1360 already_sent_t silent_id = ++LocalUser::already_sent_id;
1361 already_sent_t seen_id = ++LocalUser::already_sent_id;
1363 UserChanList include_c(chans);
1364 std::map<User*,bool> exceptions;
1366 FOREACH_MOD(I_OnBuildNeighborList,OnBuildNeighborList(this, include_c, exceptions));
1368 for (std::map<User*,bool>::iterator i = exceptions.begin(); i != exceptions.end(); ++i)
1370 LocalUser* u = IS_LOCAL(i->first);
1371 if (u && !u->quitting)
1375 u->already_sent = seen_id;
1380 u->already_sent = silent_id;
1384 for (UCListIter v = include_c.begin(); v != include_c.end(); ++v)
1387 snprintf(buffer, MAXBUF, ":%s JOIN %s", GetFullHost().c_str(), c->name.c_str());
1388 std::string joinline(buffer);
1389 Membership* memb = c->GetUser(this);
1390 std::string modeline = memb->modes;
1391 if (modeline.length() > 0)
1393 for(unsigned int i=0; i < memb->modes.length(); i++)
1394 modeline.append(" ").append(nick);
1395 snprintf(buffer, MAXBUF, ":%s MODE %s +%s", GetFullHost().c_str(), c->name.c_str(), modeline.c_str());
1399 const UserMembList *ulist = c->GetUsers();
1400 for (UserMembList::const_iterator i = ulist->begin(); i != ulist->end(); i++)
1402 LocalUser* u = IS_LOCAL(i->first);
1403 if (u == NULL || u == this)
1405 if (u->already_sent == silent_id)
1408 if (u->already_sent != seen_id)
1411 u->already_sent = seen_id;
1414 if (modeline.length() > 0)
1420 bool User::ChangeDisplayedHost(const char* shost)
1427 ModResult MOD_RESULT;
1428 FIRST_MOD_RESULT(OnChangeLocalUserHost, MOD_RESULT, (IS_LOCAL(this),shost));
1429 if (MOD_RESULT == MOD_RES_DENY)
1433 FOREACH_MOD(I_OnChangeHost, OnChangeHost(this,shost));
1435 std::string quitstr = ":" + GetFullHost() + " QUIT :Changing host";
1437 /* Fix by Om: User::dhost is 65 long, this was truncating some long hosts */
1438 this->dhost.assign(shost, 0, 64);
1440 this->InvalidateCache();
1442 this->DoHostCycle(quitstr);
1445 this->WriteNumeric(RPL_YOURDISPLAYEDHOST, "%s %s :is now your displayed host",this->nick.c_str(),this->dhost.c_str());
1450 bool User::ChangeIdent(const char* newident)
1452 if (this->ident == newident)
1455 FOREACH_MOD(I_OnChangeIdent, OnChangeIdent(this,newident));
1457 std::string quitstr = ":" + GetFullHost() + " QUIT :Changing ident";
1459 this->ident.assign(newident, 0, ServerInstance->Config->Limits.IdentMax + 1);
1461 this->InvalidateCache();
1463 this->DoHostCycle(quitstr);
1468 void User::SendAll(const char* command, const char* text, ...)
1470 char textbuffer[MAXBUF];
1471 char formatbuffer[MAXBUF];
1474 va_start(argsPtr, text);
1475 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1478 snprintf(formatbuffer,MAXBUF,":%s %s $* :%s", this->GetFullHost().c_str(), command, textbuffer);
1479 std::string fmt = formatbuffer;
1481 for (std::vector<LocalUser*>::const_iterator i = ServerInstance->Users->local_users.begin(); i != ServerInstance->Users->local_users.end(); i++)
1488 std::string User::ChannelList(User* source, bool spy)
1492 for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
1495 /* If the target is the sender, neither +p nor +s is set, or
1496 * the channel contains the user, it is not a spy channel
1498 if (spy != (source == this || !(c->IsModeSet('p') || c->IsModeSet('s')) || c->HasUser(source)))
1499 list.append(c->GetPrefixChar(this)).append(c->name).append(" ");
1505 void User::SplitChanList(User* dest, const std::string &cl)
1508 std::ostringstream prefix;
1509 std::string::size_type start, pos, length;
1511 prefix << this->nick << " " << dest->nick << " :";
1512 line = prefix.str();
1513 int namelen = ServerInstance->Config->ServerName.length() + 6;
1515 for (start = 0; (pos = cl.find(' ', start)) != std::string::npos; start = pos+1)
1517 length = (pos == std::string::npos) ? cl.length() : pos;
1519 if (line.length() + namelen + length - start > 510)
1521 ServerInstance->SendWhoisLine(this, dest, 319, "%s", line.c_str());
1522 line = prefix.str();
1525 if(pos == std::string::npos)
1527 line.append(cl.substr(start, length - start));
1532 line.append(cl.substr(start, length - start + 1));
1538 ServerInstance->SendWhoisLine(this, dest, 319, "%s", line.c_str());
1543 * Sets a user's connection class.
1544 * If the class name is provided, it will be used. Otherwise, the class will be guessed using host/ip/ident/etc.
1545 * NOTE: If the <ALLOW> or <DENY> tag specifies an ip, and this user resolves,
1546 * then their ip will be taken as 'priority' anyway, so for example,
1547 * <connect allow="127.0.0.1"> will match joe!bloggs@localhost
1549 void LocalUser::SetClass(const std::string &explicit_name)
1551 ConnectClass *found = NULL;
1553 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Setting connect class for UID %s", this->uuid.c_str());
1555 if (!explicit_name.empty())
1557 for (ClassVector::iterator i = ServerInstance->Config->Classes.begin(); i != ServerInstance->Config->Classes.end(); i++)
1559 ConnectClass* c = *i;
1561 if (explicit_name == c->name)
1563 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Explicitly set to %s", explicit_name.c_str());
1570 for (ClassVector::iterator i = ServerInstance->Config->Classes.begin(); i != ServerInstance->Config->Classes.end(); i++)
1572 ConnectClass* c = *i;
1573 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Checking %s", c->GetName().c_str());
1575 ModResult MOD_RESULT;
1576 FIRST_MOD_RESULT(OnSetConnectClass, MOD_RESULT, (this,c));
1577 if (MOD_RESULT == MOD_RES_DENY)
1579 if (MOD_RESULT == MOD_RES_ALLOW)
1581 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Class forced by module to %s", c->GetName().c_str());
1586 if (c->type == CC_NAMED)
1589 bool regdone = (registered != REG_NONE);
1590 if (c->config->getBool("registered", regdone) != regdone)
1593 /* check if host matches.. */
1594 if (c->GetHost().length() && !InspIRCd::MatchCIDR(this->GetIPString(), c->GetHost(), NULL) &&
1595 !InspIRCd::MatchCIDR(this->host, c->GetHost(), NULL))
1597 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "No host match (for %s)", c->GetHost().c_str());
1602 * deny change if change will take class over the limit check it HERE, not after we found a matching class,
1603 * because we should attempt to find another class if this one doesn't match us. -- w00t
1605 if (c->limit && (c->GetReferenceCount() >= c->limit))
1607 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "OOPS: Connect class limit (%lu) hit, denying", c->limit);
1611 /* if it requires a port ... */
1612 int port = c->config->getInt("port");
1615 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Requires port (%d)", port);
1617 /* and our port doesn't match, fail. */
1618 if (this->GetServerPort() != port)
1622 if (!c->config->getString("pass").empty())
1624 if (ServerInstance->PassCompare(this, c->config->getString("pass"), password, c->config->getString("hash")))
1626 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Bad password, skipping");
1631 /* we stop at the first class that meets ALL critera. */
1638 * Okay, assuming we found a class that matches.. switch us into that class, keeping refcounts up to date.
1646 /* looks up a users password for their connection class (<ALLOW>/<DENY> tags)
1647 * NOTE: If the <ALLOW> or <DENY> tag specifies an ip, and this user resolves,
1648 * then their ip will be taken as 'priority' anyway, so for example,
1649 * <connect allow="127.0.0.1"> will match joe!bloggs@localhost
1651 ConnectClass* LocalUser::GetClass()
1656 ConnectClass* User::GetClass()
1661 void User::PurgeEmptyChannels()
1663 // firstly decrement the count on each channel
1664 for (UCListIter f = this->chans.begin(); f != this->chans.end(); f++)
1673 const std::string& FakeUser::GetFullHost()
1675 if (!ServerInstance->Config->HideWhoisServer.empty())
1676 return ServerInstance->Config->HideWhoisServer;
1680 const std::string& FakeUser::GetFullRealHost()
1682 if (!ServerInstance->Config->HideWhoisServer.empty())
1683 return ServerInstance->Config->HideWhoisServer;
1687 ConnectClass::ConnectClass(ConfigTag* tag, char t, const std::string& mask)
1688 : config(tag), type(t), fakelag(true), name("unnamed"), registration_timeout(0), host(mask),
1689 pingtime(0), softsendqmax(0), hardsendqmax(0), recvqmax(0),
1690 penaltythreshold(0), commandrate(0), maxlocal(0), maxglobal(0), maxchans(0), limit(0)
1694 ConnectClass::ConnectClass(ConfigTag* tag, char t, const std::string& mask, const ConnectClass& parent)
1695 : config(tag), type(t), fakelag(parent.fakelag), name("unnamed"),
1696 registration_timeout(parent.registration_timeout), host(mask), pingtime(parent.pingtime),
1697 softsendqmax(parent.softsendqmax), hardsendqmax(parent.hardsendqmax), recvqmax(parent.recvqmax),
1698 penaltythreshold(parent.penaltythreshold), commandrate(parent.commandrate),
1699 maxlocal(parent.maxlocal), maxglobal(parent.maxglobal), maxchans(parent.maxchans),
1704 void ConnectClass::Update(const ConnectClass* src)
1707 registration_timeout = src->registration_timeout;
1709 pingtime = src->pingtime;
1710 softsendqmax = src->softsendqmax;
1711 hardsendqmax = src->hardsendqmax;
1712 recvqmax = src->recvqmax;
1713 penaltythreshold = src->penaltythreshold;
1714 maxlocal = src->maxlocal;
1715 maxglobal = src->maxglobal;