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());
117 ServerInstance->stats->statsDnsBad++;
121 bool User::IsNoticeMaskSet(unsigned char sm)
125 return (snomasks[sm-65]);
128 void User::SetNoticeMask(unsigned char sm, bool value)
132 snomasks[sm-65] = value;
135 const char* User::FormatNoticeMasks()
137 static char data[MAXBUF];
140 for (int n = 0; n < 64; n++)
143 data[offset++] = n+65;
150 bool User::IsModeSet(unsigned char m)
154 return (modes[m-65]);
157 void User::SetMode(unsigned char m, bool value)
164 const char* User::FormatModes(bool showparameters)
166 static char data[MAXBUF];
170 for (unsigned char n = 0; n < 64; n++)
174 data[offset++] = n + 65;
175 ModeHandler* mh = ServerInstance->Modes->FindMode(n + 65, MODETYPE_USER);
176 if (showparameters && mh && mh->GetNumParams(true))
178 std::string p = mh->GetUserParameter(this);
180 params.append(" ").append(p);
185 strlcat(data, params.c_str(), MAXBUF);
189 User::User(const std::string &uid, const std::string& sid, int type)
190 : uuid(uid), server(sid), usertype(type)
192 age = ServerInstance->Time();
193 signon = idle_lastmsg = 0;
195 quietquit = quitting = exempt = dns_done = false;
196 client_sa.sa.sa_family = AF_UNSPEC;
198 ServerInstance->Logs->Log("USERS", DEBUG, "New UUID for user: %s", uuid.c_str());
200 user_hash::iterator finduuid = ServerInstance->Users->uuidlist->find(uuid);
201 if (finduuid == ServerInstance->Users->uuidlist->end())
202 (*ServerInstance->Users->uuidlist)[uuid] = this;
204 throw CoreException("Duplicate UUID "+std::string(uuid)+" in User constructor");
207 LocalUser::LocalUser(int myfd, irc::sockets::sockaddrs* client, irc::sockets::sockaddrs* servaddr)
208 : User(ServerInstance->GetUID(), ServerInstance->Config->ServerName, USERTYPE_LOCAL), eh(this),
209 bytes_in(0), bytes_out(0), cmds_in(0), cmds_out(0), nping(0), CommandFloodPenalty(0),
214 memcpy(&client_sa, client, sizeof(irc::sockets::sockaddrs));
215 memcpy(&server_sa, servaddr, sizeof(irc::sockets::sockaddrs));
220 if (ServerInstance->Users->uuidlist->find(uuid) != ServerInstance->Users->uuidlist->end())
221 ServerInstance->Logs->Log("USERS", DEFAULT, "User destructor for %s called without cull", uuid.c_str());
224 const std::string& User::MakeHost()
226 if (!this->cached_makehost.empty())
227 return this->cached_makehost;
230 /* This is much faster than snprintf */
232 for(const char* n = ident.c_str(); *n; n++)
235 for(const char* n = host.c_str(); *n; n++)
239 this->cached_makehost.assign(nhost);
241 return this->cached_makehost;
244 const std::string& User::MakeHostIP()
246 if (!this->cached_hostip.empty())
247 return this->cached_hostip;
250 /* This is much faster than snprintf */
252 for(const char* n = ident.c_str(); *n; n++)
255 for(const char* n = this->GetIPString(); *n; n++)
259 this->cached_hostip = ihost;
261 return this->cached_hostip;
264 const std::string& User::GetFullHost()
266 if (!this->cached_fullhost.empty())
267 return this->cached_fullhost;
271 for(const char* n = nick.c_str(); *n; n++)
274 for(const char* n = ident.c_str(); *n; n++)
277 for(const char* n = dhost.c_str(); *n; n++)
281 this->cached_fullhost = result;
283 return this->cached_fullhost;
286 char* User::MakeWildHost()
288 static char nresult[MAXBUF];
290 *t++ = '*'; *t++ = '!';
291 *t++ = '*'; *t++ = '@';
292 for(const char* n = dhost.c_str(); *n; n++)
298 const std::string& User::GetFullRealHost()
300 if (!this->cached_fullrealhost.empty())
301 return this->cached_fullrealhost;
303 char fresult[MAXBUF];
305 for(const char* n = nick.c_str(); *n; n++)
308 for(const char* n = ident.c_str(); *n; n++)
311 for(const char* n = host.c_str(); *n; n++)
315 this->cached_fullrealhost = fresult;
317 return this->cached_fullrealhost;
320 bool LocalUser::IsInvited(const irc::string &channel)
322 time_t now = ServerInstance->Time();
323 InvitedList::iterator safei;
324 for (InvitedList::iterator i = invites.begin(); i != invites.end(); ++i)
326 if (channel == i->first)
328 if (i->second != 0 && now > i->second)
330 /* Expired invite, remove it. */
333 invites.erase(safei);
342 InvitedList* LocalUser::GetInviteList()
344 time_t now = ServerInstance->Time();
345 /* Weed out expired invites here. */
346 InvitedList::iterator safei;
347 for (InvitedList::iterator i = invites.begin(); i != invites.end(); ++i)
349 if (i->second != 0 && now > i->second)
351 /* Expired invite, remove it. */
354 invites.erase(safei);
360 void LocalUser::InviteTo(const irc::string &channel, time_t invtimeout)
362 time_t now = ServerInstance->Time();
363 if (invtimeout != 0 && now > invtimeout) return; /* Don't add invites that are expired from the get-go. */
364 for (InvitedList::iterator i = invites.begin(); i != invites.end(); ++i)
366 if (channel == i->first)
368 if (i->second != 0 && invtimeout > i->second)
370 i->second = invtimeout;
376 invites.push_back(std::make_pair(channel, invtimeout));
379 void LocalUser::RemoveInvite(const irc::string &channel)
381 for (InvitedList::iterator i = invites.begin(); i != invites.end(); i++)
383 if (channel == i->first)
391 bool User::HasModePermission(unsigned char, ModeType)
396 bool LocalUser::HasModePermission(unsigned char mode, ModeType type)
401 if (mode < 'A' || mode > ('A' + 64)) return false;
403 return ((type == MODETYPE_USER ? oper->AllowedUserModes : oper->AllowedChanModes))[(mode - 'A')];
407 * users on remote servers can completely bypass all permissions based checks.
408 * This prevents desyncs when one server has different type/class tags to another.
409 * That having been said, this does open things up to the possibility of source changes
410 * allowing remote kills, etc - but if they have access to the src, they most likely have
411 * access to the conf - so it's an end to a means either way.
413 bool User::HasPermission(const std::string&)
418 bool LocalUser::HasPermission(const std::string &command)
420 // are they even an oper at all?
426 if (oper->AllowedOperCommands.find(command) != oper->AllowedOperCommands.end())
428 else if (oper->AllowedOperCommands.find("*") != oper->AllowedOperCommands.end())
434 bool User::HasPrivPermission(const std::string &privstr, bool noisy)
439 bool LocalUser::HasPrivPermission(const std::string &privstr, bool noisy)
444 this->WriteServ("NOTICE %s :You are not an oper", this->nick.c_str());
448 if (oper->AllowedPrivs.find(privstr) != oper->AllowedPrivs.end())
452 else if (oper->AllowedPrivs.find("*") != oper->AllowedPrivs.end())
458 this->WriteServ("NOTICE %s :Oper type %s does not have access to priv %s", this->nick.c_str(), oper->NameStr(), privstr.c_str());
462 void UserIOHandler::OnDataReady()
467 if (recvq.length() > user->MyClass->GetRecvqMax() && !user->HasPrivPermission("users/flood/increased-buffers"))
469 ServerInstance->Users->QuitUser(user, "RecvQ exceeded");
470 ServerInstance->SNO->WriteToSnoMask('a', "User %s RecvQ of %lu exceeds connect class maximum of %lu",
471 user->nick.c_str(), (unsigned long)recvq.length(), user->MyClass->GetRecvqMax());
473 unsigned long sendqmax = ULONG_MAX;
474 if (!user->HasPrivPermission("users/flood/increased-buffers"))
475 sendqmax = user->MyClass->GetSendqSoftMax();
476 unsigned long penaltymax = ULONG_MAX;
477 if (!user->HasPrivPermission("users/flood/no-fakelag"))
478 penaltymax = user->MyClass->GetPenaltyThreshold() * 1000;
480 while (user->CommandFloodPenalty < penaltymax && getSendQSize() < sendqmax)
483 line.reserve(MAXBUF);
484 std::string::size_type qpos = 0;
485 while (qpos < recvq.length())
487 char c = recvq[qpos++];
498 if (line.length() < MAXBUF - 2)
501 // if we got here, the recvq ran out before we found a newline
504 // just found a newline. Terminate the string, and pull it out of recvq
505 recvq = recvq.substr(qpos);
507 // TODO should this be moved to when it was inserted in recvq?
508 ServerInstance->stats->statsRecv += qpos;
509 user->bytes_in += qpos;
512 ServerInstance->Parser->ProcessBuffer(line, user);
516 // Add pseudo-penalty so that we continue processing after sendq recedes
517 if (user->CommandFloodPenalty == 0 && getSendQSize() >= sendqmax)
518 user->CommandFloodPenalty++;
519 if (user->CommandFloodPenalty >= penaltymax && !user->MyClass->fakelag)
520 ServerInstance->Users->QuitUser(user, "Excess Flood");
523 void UserIOHandler::AddWriteBuf(const std::string &data)
525 if (!user->quitting && getSendQSize() + data.length() > user->MyClass->GetSendqHardMax() &&
526 !user->HasPrivPermission("users/flood/increased-buffers"))
529 * Quit the user FIRST, because otherwise we could recurse
530 * here and hit the same limit.
532 ServerInstance->Users->QuitUser(user, "SendQ exceeded");
533 ServerInstance->SNO->WriteToSnoMask('a', "User %s SendQ exceeds connect class maximum of %lu",
534 user->nick.c_str(), user->MyClass->GetSendqHardMax());
538 // We still want to append data to the sendq of a quitting user,
539 // e.g. their ERROR message that says 'closing link'
544 void UserIOHandler::OnError(BufferedSocketError)
546 ServerInstance->Users->QuitUser(user, getError());
549 CullResult User::cull()
552 ServerInstance->Users->QuitUser(this, "Culled without QuitUser");
553 PurgeEmptyChannels();
555 this->InvalidateCache();
557 if (client_sa.sa.sa_family != AF_UNSPEC)
558 ServerInstance->Users->RemoveCloneCounts(this);
560 return Extensible::cull();
563 CullResult LocalUser::cull()
565 std::vector<LocalUser*>::iterator x = find(ServerInstance->Users->local_users.begin(),ServerInstance->Users->local_users.end(),this);
566 if (x != ServerInstance->Users->local_users.end())
567 ServerInstance->Users->local_users.erase(x);
569 ServerInstance->Logs->Log("USERS", DEBUG, "Failed to remove user from vector");
575 CullResult FakeUser::cull()
577 // Fake users don't quit, they just get culled.
579 ServerInstance->Users->clientlist->erase(nick);
580 ServerInstance->Users->uuidlist->erase(uuid);
584 void User::Oper(OperInfo* info)
586 if (this->IsModeSet('o'))
589 this->modes[UM_OPERATOR] = 1;
591 this->WriteServ("MODE %s :+o", this->nick.c_str());
592 FOREACH_MOD(I_OnOper, OnOper(this, info->name));
594 std::string opername;
595 if (info->oper_block)
596 opername = info->oper_block->getString("name");
600 LocalUser* l = IS_LOCAL(this);
601 std::string vhost = oper->getConfig("vhost");
603 l->ChangeDisplayedHost(vhost.c_str());
604 std::string opClass = oper->getConfig("class");
605 if (!opClass.empty())
606 l->SetClass(opClass);
609 ServerInstance->SNO->WriteToSnoMask('o',"%s (%s@%s) is now an IRC operator of type %s (using oper '%s')",
610 nick.c_str(), ident.c_str(), host.c_str(), oper->NameStr(), opername.c_str());
611 this->WriteNumeric(381, "%s :You are now %s %s", nick.c_str(), strchr("aeiouAEIOU", oper->name[0]) ? "an" : "a", oper->NameStr());
613 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());
614 ServerInstance->Users->all_opers.push_back(this);
616 // Expand permissions from config for faster lookup
620 FOREACH_MOD(I_OnPostOper,OnPostOper(this, oper->name, opername));
623 void OperInfo::init()
625 AllowedOperCommands.clear();
626 AllowedPrivs.clear();
627 AllowedUserModes.reset();
628 AllowedChanModes.reset();
629 AllowedUserModes['o' - 'A'] = true; // Call me paranoid if you want.
631 for(std::vector<reference<ConfigTag> >::iterator iter = class_blocks.begin(); iter != class_blocks.end(); ++iter)
633 ConfigTag* tag = *iter;
634 std::string mycmd, mypriv;
635 /* Process commands */
636 irc::spacesepstream CommandList(tag->getString("commands"));
637 while (CommandList.GetToken(mycmd))
639 AllowedOperCommands.insert(mycmd);
642 irc::spacesepstream PrivList(tag->getString("privs"));
643 while (PrivList.GetToken(mypriv))
645 AllowedPrivs.insert(mypriv);
648 for (unsigned char* c = (unsigned char*)tag->getString("usermodes").c_str(); *c; ++c)
652 this->AllowedUserModes.set();
654 else if (*c >= 'A' && *c < 'z')
656 this->AllowedUserModes[*c - 'A'] = true;
660 for (unsigned char* c = (unsigned char*)tag->getString("chanmodes").c_str(); *c; ++c)
664 this->AllowedChanModes.set();
666 else if (*c >= 'A' && *c < 'z')
668 this->AllowedChanModes[*c - 'A'] = true;
680 * unset their oper type (what IS_OPER checks).
681 * note, order is important - this must come before modes as -o attempts
682 * to call UnOper. -- w00t
687 /* Remove all oper only modes from the user when the deoper - Bug #466*/
688 std::string moderemove("-");
690 for (unsigned char letter = 'A'; letter <= 'z'; letter++)
692 ModeHandler* mh = ServerInstance->Modes->FindMode(letter, MODETYPE_USER);
693 if (mh && mh->NeedsOper())
694 moderemove += letter;
698 std::vector<std::string> parameters;
699 parameters.push_back(this->nick);
700 parameters.push_back(moderemove);
702 ServerInstance->Parser->CallHandler("MODE", parameters, this);
704 /* remove the user from the oper list. Will remove multiple entries as a safeguard against bug #404 */
705 ServerInstance->Users->all_opers.remove(this);
707 this->modes[UM_OPERATOR] = 0;
710 /* adds or updates an entry in the whowas list */
711 void User::AddToWhoWas()
713 Module* whowas = ServerInstance->Modules->Find("cmd_whowas.so");
716 WhowasRequest req(NULL, whowas, WhowasRequest::WHOWAS_ADD);
723 * Check class restrictions
725 void LocalUser::CheckClass()
727 ConnectClass* a = this->MyClass;
731 ServerInstance->Users->QuitUser(this, "Access denied by configuration");
734 else if (a->type == CC_DENY)
736 ServerInstance->Users->QuitUser(this, a->config->getString("reason", "Unauthorised connection"));
739 else if ((a->GetMaxLocal()) && (ServerInstance->Users->LocalCloneCount(this) > a->GetMaxLocal()))
741 ServerInstance->Users->QuitUser(this, "No more connections allowed from your host via this connect class (local)");
742 ServerInstance->SNO->WriteToSnoMask('a', "WARNING: maximum LOCAL connections (%ld) exceeded for IP %s", a->GetMaxLocal(), this->GetIPString());
745 else if ((a->GetMaxGlobal()) && (ServerInstance->Users->GlobalCloneCount(this) > a->GetMaxGlobal()))
747 ServerInstance->Users->QuitUser(this, "No more connections allowed from your host via this connect class (global)");
748 ServerInstance->SNO->WriteToSnoMask('a', "WARNING: maximum GLOBAL connections (%ld) exceeded for IP %s", a->GetMaxGlobal(), this->GetIPString());
752 this->nping = ServerInstance->Time() + a->GetPingTime() + ServerInstance->Config->dns_timeout;
755 bool User::CheckLines(bool doZline)
757 const char* check[] = { "G" , "K", (doZline) ? "Z" : NULL, NULL };
761 for (int n = 0; check[n]; ++n)
763 XLine *r = ServerInstance->XLines->MatchesLine(check[n], this);
776 void LocalUser::FullConnect()
778 ServerInstance->stats->statsConnects++;
779 this->idle_lastmsg = ServerInstance->Time();
782 * You may be thinking "wtf, we checked this in User::AddClient!" - and yes, we did, BUT.
783 * At the time AddClient is called, we don't have a resolved host, by here we probably do - which
784 * may put the user into a totally seperate class with different restrictions! so we *must* check again.
785 * Don't remove this! -- w00t
795 this->WriteServ("NOTICE Auth :Welcome to \002%s\002!",ServerInstance->Config->Network.c_str());
796 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());
797 this->WriteNumeric(RPL_YOURHOSTIS, "%s :Your host is %s, running version InspIRCd-2.0",this->nick.c_str(),ServerInstance->Config->ServerName.c_str());
798 this->WriteNumeric(RPL_SERVERCREATED, "%s :This server was created %s %s", this->nick.c_str(), __TIME__, __DATE__);
799 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());
801 ServerInstance->Config->Send005(this);
802 this->WriteNumeric(RPL_YOURUUID, "%s %s :your unique ID", this->nick.c_str(), this->uuid.c_str());
805 if (ServerInstance->Users->unregistered_count)
806 ServerInstance->Users->unregistered_count--;
808 /* Trigger MOTD and LUSERS output, give modules a chance too */
809 ModResult MOD_RESULT;
810 std::string command("MOTD");
811 std::vector<std::string> parameters;
812 FIRST_MOD_RESULT(OnPreCommand, MOD_RESULT, (command, parameters, this, true, command));
814 ServerInstance->CallCommandHandler(command, parameters, this);
816 MOD_RESULT = MOD_RES_PASSTHRU;
818 FIRST_MOD_RESULT(OnPreCommand, MOD_RESULT, (command, parameters, this, true, command));
820 ServerInstance->CallCommandHandler(command, parameters, this);
822 if (ServerInstance->Config->RawLog)
823 WriteServ("PRIVMSG %s :*** Raw I/O logging is enabled on this server. All messages, passwords, and commands are being recorded.", nick.c_str());
826 * We don't set REG_ALL until triggering OnUserConnect, so some module events don't spew out stuff
827 * for a user that doesn't exist yet.
829 FOREACH_MOD(I_OnUserConnect,OnUserConnect(this));
831 this->registered = REG_ALL;
833 FOREACH_MOD(I_OnPostConnect,OnPostConnect(this));
835 ServerInstance->SNO->WriteToSnoMask('c',"Client connecting on port %d: %s!%s@%s [%s] [%s]",
836 this->GetServerPort(), this->nick.c_str(), this->ident.c_str(), this->host.c_str(), this->GetIPString(), this->fullname.c_str());
837 ServerInstance->Logs->Log("BANCACHE", DEBUG, "BanCache: Adding NEGATIVE hit for %s", this->GetIPString());
838 ServerInstance->BanCache->AddHit(this->GetIPString(), "", "");
839 // reset the flood penalty (which could have been raised due to things like auto +x)
840 CommandFloodPenalty = 0;
843 void User::InvalidateCache()
845 /* Invalidate cache */
846 cached_fullhost.clear();
847 cached_hostip.clear();
848 cached_makehost.clear();
849 cached_fullrealhost.clear();
852 bool User::ChangeNick(const std::string& newnick, bool force)
854 ModResult MOD_RESULT;
857 ServerInstance->NICKForced.set(this, 1);
858 FIRST_MOD_RESULT(OnUserPreNick, MOD_RESULT, (this, newnick));
859 ServerInstance->NICKForced.set(this, 0);
861 if (MOD_RESULT == MOD_RES_DENY)
863 ServerInstance->stats->statsCollisions++;
867 if (assign(newnick) == assign(nick))
869 // case change, don't need to check Q:lines and such
870 // and, if it's identical including case, we can leave right now
877 * Don't check Q:Lines if it's a server-enforced change, just on the off-chance some fucking *moron*
878 * tries to Q:Line SIDs, also, this means we just get our way period, as it really should be.
879 * Thanks Kein for finding this. -- w00t
881 * Also don't check Q:Lines for remote nickchanges, they should have our Q:Lines anyway to enforce themselves.
884 if (IS_LOCAL(this) && !force)
886 XLine* mq = ServerInstance->XLines->MatchesLine("Q",newnick);
889 if (this->registered == REG_ALL)
891 ServerInstance->SNO->WriteGlobalSno('a', "Q-Lined nickname %s from %s!%s@%s: %s",
892 newnick.c_str(), this->nick.c_str(), this->ident.c_str(), this->host.c_str(), mq->reason.c_str());
894 this->WriteNumeric(432, "%s %s :Invalid nickname: %s",this->nick.c_str(), newnick.c_str(), mq->reason.c_str());
898 if (ServerInstance->Config->RestrictBannedUsers)
900 for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
903 if (chan->GetPrefixValue(this) < VOICE_VALUE && chan->IsBanned(this))
905 this->WriteNumeric(404, "%s %s :Cannot send to channel (you're banned)", this->nick.c_str(), chan->name.c_str());
913 * Uh oh.. if the nickname is in use, and it's not in use by the person using it (doh) --
914 * then we have a potential collide. Check whether someone else is camping on the nick
915 * (i.e. connect -> send NICK, don't send USER.) If they are camping, force-change the
916 * camper to their UID, and allow the incoming nick change.
918 * If the guy using the nick is already using it, tell the incoming nick change to gtfo,
919 * because the nick is already (rightfully) in use. -- w00t
921 User* InUse = ServerInstance->FindNickOnly(newnick);
922 if (InUse && (InUse != this))
924 if (InUse->registered != REG_ALL)
926 /* force the camper to their UUID, and ask them to re-send a NICK. */
927 InUse->WriteTo(InUse, "NICK %s", InUse->uuid.c_str());
928 InUse->WriteNumeric(433, "%s %s :Nickname overruled.", InUse->nick.c_str(), InUse->nick.c_str());
930 ServerInstance->Users->clientlist->erase(InUse->nick);
931 (*(ServerInstance->Users->clientlist))[InUse->uuid] = InUse;
933 InUse->nick = InUse->uuid;
934 InUse->InvalidateCache();
935 InUse->registered &= ~REG_NICK;
939 /* No camping, tell the incoming user to stop trying to change nick ;p */
940 this->WriteNumeric(433, "%s %s :Nickname is already in use.", this->registered >= REG_NICK ? this->nick.c_str() : "*", newnick.c_str());
946 if (this->registered == REG_ALL)
947 this->WriteCommon("NICK %s",newnick.c_str());
948 std::string oldnick = nick;
952 ServerInstance->Users->clientlist->erase(oldnick);
953 (*(ServerInstance->Users->clientlist))[newnick] = this;
955 if (registered == REG_ALL)
956 FOREACH_MOD(I_OnUserPostNick,OnUserPostNick(this,oldnick));
961 int LocalUser::GetServerPort()
963 switch (this->server_sa.sa.sa_family)
966 return htons(this->server_sa.in6.sin6_port);
968 return htons(this->server_sa.in4.sin_port);
973 const char* User::GetIPString()
976 if (cachedip.empty())
978 irc::sockets::satoap(client_sa, cachedip, port);
979 /* IP addresses starting with a : on irc are a Bad Thing (tm) */
980 if (cachedip.c_str()[0] == ':')
981 cachedip.insert(0,1,'0');
984 return cachedip.c_str();
987 irc::sockets::cidr_mask User::GetCIDRMask()
990 switch (client_sa.sa.sa_family)
993 range = ServerInstance->Config->c_ipv6_range;
996 range = ServerInstance->Config->c_ipv4_range;
999 return irc::sockets::cidr_mask(client_sa, range);
1002 bool User::SetClientIP(const char* sip)
1004 this->cachedip = "";
1005 return irc::sockets::aptosa(sip, 0, client_sa);
1008 static std::string wide_newline("\r\n");
1010 void User::Write(const std::string& text)
1014 void User::Write(const char *text, ...)
1018 void LocalUser::Write(const std::string& text)
1020 if (!ServerInstance->SE->BoundsCheckFd(&eh))
1023 if (text.length() > MAXBUF - 2)
1025 // this should happen rarely or never. Crop the string at 512 and try again.
1026 std::string try_again = text.substr(0, MAXBUF - 2);
1031 ServerInstance->Logs->Log("USEROUTPUT", RAWIO, "C[%s] O %s", uuid.c_str(), text.c_str());
1033 eh.AddWriteBuf(text);
1034 eh.AddWriteBuf(wide_newline);
1036 ServerInstance->stats->statsSent += text.length() + 2;
1037 this->bytes_out += text.length() + 2;
1043 void LocalUser::Write(const char *text, ...)
1046 char textbuffer[MAXBUF];
1048 va_start(argsPtr, text);
1049 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1052 this->Write(std::string(textbuffer));
1055 void User::WriteServ(const std::string& text)
1057 this->Write(":%s %s",ServerInstance->Config->ServerName.c_str(),text.c_str());
1061 * Same as Write(), except `text' is prefixed with `:server.name '.
1063 void User::WriteServ(const char* text, ...)
1066 char textbuffer[MAXBUF];
1068 va_start(argsPtr, text);
1069 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1072 this->WriteServ(std::string(textbuffer));
1076 void User::WriteNumeric(unsigned int numeric, const char* text, ...)
1079 char textbuffer[MAXBUF];
1081 va_start(argsPtr, text);
1082 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1085 this->WriteNumeric(numeric, std::string(textbuffer));
1088 void User::WriteNumeric(unsigned int numeric, const std::string &text)
1090 char textbuffer[MAXBUF];
1091 ModResult MOD_RESULT;
1093 FIRST_MOD_RESULT(OnNumeric, MOD_RESULT, (this, numeric, text));
1095 if (MOD_RESULT == MOD_RES_DENY)
1098 snprintf(textbuffer,MAXBUF,":%s %03u %s",ServerInstance->Config->ServerName.c_str(), numeric, text.c_str());
1099 this->Write(std::string(textbuffer));
1102 void User::WriteFrom(User *user, const std::string &text)
1106 snprintf(tb,MAXBUF,":%s %s",user->GetFullHost().c_str(),text.c_str());
1108 this->Write(std::string(tb));
1112 /* write text from an originating user to originating user */
1114 void User::WriteFrom(User *user, const char* text, ...)
1117 char textbuffer[MAXBUF];
1119 va_start(argsPtr, text);
1120 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1123 this->WriteFrom(user, std::string(textbuffer));
1127 /* write text to an destination user from a source user (e.g. user privmsg) */
1129 void User::WriteTo(User *dest, const char *data, ...)
1131 char textbuffer[MAXBUF];
1134 va_start(argsPtr, data);
1135 vsnprintf(textbuffer, MAXBUF, data, argsPtr);
1138 this->WriteTo(dest, std::string(textbuffer));
1141 void User::WriteTo(User *dest, const std::string &data)
1143 dest->WriteFrom(this, data);
1146 void User::WriteCommon(const char* text, ...)
1148 char textbuffer[MAXBUF];
1151 if (this->registered != REG_ALL || quitting)
1154 int len = snprintf(textbuffer,MAXBUF,":%s ",this->GetFullHost().c_str());
1156 va_start(argsPtr, text);
1157 vsnprintf(textbuffer + len, MAXBUF - len, text, argsPtr);
1160 this->WriteCommonRaw(std::string(textbuffer), true);
1163 void User::WriteCommonExcept(const char* text, ...)
1165 char textbuffer[MAXBUF];
1168 if (this->registered != REG_ALL || quitting)
1171 int len = snprintf(textbuffer,MAXBUF,":%s ",this->GetFullHost().c_str());
1173 va_start(argsPtr, text);
1174 vsnprintf(textbuffer + len, MAXBUF - len, text, argsPtr);
1177 this->WriteCommonRaw(std::string(textbuffer), false);
1180 void User::WriteCommonRaw(const std::string &line, bool include_self)
1182 if (this->registered != REG_ALL || quitting)
1185 LocalUser::already_sent_id++;
1187 UserChanList include_c(chans);
1188 std::map<User*,bool> exceptions;
1190 exceptions[this] = include_self;
1192 FOREACH_MOD(I_OnBuildNeighborList,OnBuildNeighborList(this, include_c, exceptions));
1194 for (std::map<User*,bool>::iterator i = exceptions.begin(); i != exceptions.end(); ++i)
1196 LocalUser* u = IS_LOCAL(i->first);
1197 if (u && !u->quitting)
1199 u->already_sent = LocalUser::already_sent_id;
1204 for (UCListIter v = include_c.begin(); v != include_c.end(); ++v)
1207 const UserMembList* ulist = c->GetUsers();
1208 for (UserMembList::const_iterator i = ulist->begin(); i != ulist->end(); i++)
1210 LocalUser* u = IS_LOCAL(i->first);
1211 if (u && !u->quitting && u->already_sent != LocalUser::already_sent_id)
1213 u->already_sent = LocalUser::already_sent_id;
1220 void User::WriteCommonQuit(const std::string &normal_text, const std::string &oper_text)
1225 if (this->registered != REG_ALL)
1228 already_sent_t uniq_id = ++LocalUser::already_sent_id;
1230 snprintf(tb1,MAXBUF,":%s QUIT :%s",this->GetFullHost().c_str(),normal_text.c_str());
1231 snprintf(tb2,MAXBUF,":%s QUIT :%s",this->GetFullHost().c_str(),oper_text.c_str());
1232 std::string out1 = tb1;
1233 std::string out2 = tb2;
1235 UserChanList include_c(chans);
1236 std::map<User*,bool> exceptions;
1238 FOREACH_MOD(I_OnBuildNeighborList,OnBuildNeighborList(this, include_c, exceptions));
1240 for (std::map<User*,bool>::iterator i = exceptions.begin(); i != exceptions.end(); ++i)
1242 LocalUser* u = IS_LOCAL(i->first);
1243 if (u && !u->quitting)
1245 u->already_sent = uniq_id;
1247 u->Write(IS_OPER(u) ? out2 : out1);
1250 for (UCListIter v = include_c.begin(); v != include_c.end(); ++v)
1252 const UserMembList* ulist = (*v)->GetUsers();
1253 for (UserMembList::const_iterator i = ulist->begin(); i != ulist->end(); i++)
1255 LocalUser* u = IS_LOCAL(i->first);
1256 if (u && !u->quitting && (u->already_sent != uniq_id))
1258 u->already_sent = uniq_id;
1259 u->Write(IS_OPER(u) ? out2 : out1);
1265 void LocalUser::SendText(const std::string& line)
1270 void RemoteUser::SendText(const std::string& line)
1272 ServerInstance->PI->PushToClient(this, line);
1275 void FakeUser::SendText(const std::string& line)
1279 void User::SendText(const char *text, ...)
1284 va_start(argsPtr, text);
1285 vsnprintf(line, MAXBUF, text, argsPtr);
1288 SendText(std::string(line));
1291 void User::SendText(const std::string &LinePrefix, std::stringstream &TextStream)
1294 int start_pos = LinePrefix.length();
1295 int pos = start_pos;
1296 memcpy(line, LinePrefix.data(), pos);
1298 while (TextStream >> Word)
1300 int len = Word.length();
1301 if (pos + len + 12 > MAXBUF)
1304 SendText(std::string(line));
1308 memcpy(line + pos + 1, Word.data(), len);
1312 SendText(std::string(line));
1315 /* return 0 or 1 depending if users u and u2 share one or more common channels
1316 * (used by QUIT, NICK etc which arent channel specific notices)
1318 * The old algorithm in 1.0 for this was relatively inefficient, iterating over
1319 * the first users channels then the second users channels within the outer loop,
1320 * therefore it was a maximum of x*y iterations (upon returning 0 and checking
1321 * all possible iterations). However this new function instead checks against the
1322 * channel's userlist in the inner loop which is a std::map<User*,User*>
1323 * and saves us time as we already know what pointer value we are after.
1324 * Don't quote me on the maths as i am not a mathematician or computer scientist,
1325 * but i believe this algorithm is now x+(log y) maximum iterations instead.
1327 bool User::SharesChannelWith(User *other)
1329 if ((!other) || (this->registered != REG_ALL) || (other->registered != REG_ALL))
1333 for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
1335 /* Eliminate the inner loop (which used to be ~equal in size to the outer loop)
1336 * by replacing it with a map::find which *should* be more efficient
1338 if ((*i)->HasUser(other))
1344 bool User::ChangeName(const char* gecos)
1346 if (!this->fullname.compare(gecos))
1351 ModResult MOD_RESULT;
1352 FIRST_MOD_RESULT(OnChangeLocalUserGECOS, MOD_RESULT, (IS_LOCAL(this),gecos));
1353 if (MOD_RESULT == MOD_RES_DENY)
1355 FOREACH_MOD(I_OnChangeName,OnChangeName(this,gecos));
1357 this->fullname.assign(gecos, 0, ServerInstance->Config->Limits.MaxGecos);
1362 void User::DoHostCycle(const std::string &quitline)
1364 char buffer[MAXBUF];
1366 if (!ServerInstance->Config->CycleHosts)
1369 already_sent_t silent_id = ++LocalUser::already_sent_id;
1370 already_sent_t seen_id = ++LocalUser::already_sent_id;
1372 UserChanList include_c(chans);
1373 std::map<User*,bool> exceptions;
1375 FOREACH_MOD(I_OnBuildNeighborList,OnBuildNeighborList(this, include_c, exceptions));
1377 for (std::map<User*,bool>::iterator i = exceptions.begin(); i != exceptions.end(); ++i)
1379 LocalUser* u = IS_LOCAL(i->first);
1380 if (u && !u->quitting)
1384 u->already_sent = seen_id;
1389 u->already_sent = silent_id;
1393 for (UCListIter v = include_c.begin(); v != include_c.end(); ++v)
1396 snprintf(buffer, MAXBUF, ":%s JOIN %s", GetFullHost().c_str(), c->name.c_str());
1397 std::string joinline(buffer);
1398 Membership* memb = c->GetUser(this);
1399 std::string modeline = memb->modes;
1400 if (modeline.length() > 0)
1402 for(unsigned int i=0; i < memb->modes.length(); i++)
1403 modeline.append(" ").append(nick);
1404 snprintf(buffer, MAXBUF, ":%s MODE %s +%s",
1405 ServerInstance->Config->CycleHostsFromUser ? GetFullHost().c_str() : ServerInstance->Config->ServerName.c_str(),
1406 c->name.c_str(), modeline.c_str());
1410 const UserMembList *ulist = c->GetUsers();
1411 for (UserMembList::const_iterator i = ulist->begin(); i != ulist->end(); i++)
1413 LocalUser* u = IS_LOCAL(i->first);
1414 if (u == NULL || u == this)
1416 if (u->already_sent == silent_id)
1419 if (u->already_sent != seen_id)
1422 u->already_sent = seen_id;
1425 if (modeline.length() > 0)
1431 bool User::ChangeDisplayedHost(const char* shost)
1438 ModResult MOD_RESULT;
1439 FIRST_MOD_RESULT(OnChangeLocalUserHost, MOD_RESULT, (IS_LOCAL(this),shost));
1440 if (MOD_RESULT == MOD_RES_DENY)
1444 FOREACH_MOD(I_OnChangeHost, OnChangeHost(this,shost));
1446 std::string quitstr = ":" + GetFullHost() + " QUIT :Changing host";
1448 /* Fix by Om: User::dhost is 65 long, this was truncating some long hosts */
1449 this->dhost.assign(shost, 0, 64);
1451 this->InvalidateCache();
1453 this->DoHostCycle(quitstr);
1456 this->WriteNumeric(RPL_YOURDISPLAYEDHOST, "%s %s :is now your displayed host",this->nick.c_str(),this->dhost.c_str());
1461 bool User::ChangeIdent(const char* newident)
1463 if (this->ident == newident)
1466 FOREACH_MOD(I_OnChangeIdent, OnChangeIdent(this,newident));
1468 std::string quitstr = ":" + GetFullHost() + " QUIT :Changing ident";
1470 this->ident.assign(newident, 0, ServerInstance->Config->Limits.IdentMax + 1);
1472 this->InvalidateCache();
1474 this->DoHostCycle(quitstr);
1479 void User::SendAll(const char* command, const char* text, ...)
1481 char textbuffer[MAXBUF];
1482 char formatbuffer[MAXBUF];
1485 va_start(argsPtr, text);
1486 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1489 snprintf(formatbuffer,MAXBUF,":%s %s $* :%s", this->GetFullHost().c_str(), command, textbuffer);
1490 std::string fmt = formatbuffer;
1492 for (std::vector<LocalUser*>::const_iterator i = ServerInstance->Users->local_users.begin(); i != ServerInstance->Users->local_users.end(); i++)
1499 std::string User::ChannelList(User* source, bool spy)
1503 for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
1506 /* If the target is the sender, neither +p nor +s is set, or
1507 * the channel contains the user, it is not a spy channel
1509 if (spy != (source == this || !(c->IsModeSet('p') || c->IsModeSet('s')) || c->HasUser(source)))
1510 list.append(c->GetPrefixChar(this)).append(c->name).append(" ");
1516 void User::SplitChanList(User* dest, const std::string &cl)
1519 std::ostringstream prefix;
1520 std::string::size_type start, pos, length;
1522 prefix << this->nick << " " << dest->nick << " :";
1523 line = prefix.str();
1524 int namelen = ServerInstance->Config->ServerName.length() + 6;
1526 for (start = 0; (pos = cl.find(' ', start)) != std::string::npos; start = pos+1)
1528 length = (pos == std::string::npos) ? cl.length() : pos;
1530 if (line.length() + namelen + length - start > 510)
1532 ServerInstance->SendWhoisLine(this, dest, 319, "%s", line.c_str());
1533 line = prefix.str();
1536 if(pos == std::string::npos)
1538 line.append(cl.substr(start, length - start));
1543 line.append(cl.substr(start, length - start + 1));
1549 ServerInstance->SendWhoisLine(this, dest, 319, "%s", line.c_str());
1554 * Sets a user's connection class.
1555 * If the class name is provided, it will be used. Otherwise, the class will be guessed using host/ip/ident/etc.
1556 * NOTE: If the <ALLOW> or <DENY> tag specifies an ip, and this user resolves,
1557 * then their ip will be taken as 'priority' anyway, so for example,
1558 * <connect allow="127.0.0.1"> will match joe!bloggs@localhost
1560 void LocalUser::SetClass(const std::string &explicit_name)
1562 ConnectClass *found = NULL;
1564 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Setting connect class for UID %s", this->uuid.c_str());
1566 if (!explicit_name.empty())
1568 for (ClassVector::iterator i = ServerInstance->Config->Classes.begin(); i != ServerInstance->Config->Classes.end(); i++)
1570 ConnectClass* c = *i;
1572 if (explicit_name == c->name)
1574 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Explicitly set to %s", explicit_name.c_str());
1581 for (ClassVector::iterator i = ServerInstance->Config->Classes.begin(); i != ServerInstance->Config->Classes.end(); i++)
1583 ConnectClass* c = *i;
1584 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Checking %s", c->GetName().c_str());
1586 ModResult MOD_RESULT;
1587 FIRST_MOD_RESULT(OnSetConnectClass, MOD_RESULT, (this,c));
1588 if (MOD_RESULT == MOD_RES_DENY)
1590 if (MOD_RESULT == MOD_RES_ALLOW)
1592 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Class forced by module to %s", c->GetName().c_str());
1597 if (c->type == CC_NAMED)
1600 bool regdone = (registered != REG_NONE);
1601 if (c->config->getBool("registered", regdone) != regdone)
1604 /* check if host matches.. */
1605 if (c->GetHost().length() && !InspIRCd::MatchCIDR(this->GetIPString(), c->GetHost(), NULL) &&
1606 !InspIRCd::MatchCIDR(this->host, c->GetHost(), NULL))
1608 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "No host match (for %s)", c->GetHost().c_str());
1613 * deny change if change will take class over the limit check it HERE, not after we found a matching class,
1614 * because we should attempt to find another class if this one doesn't match us. -- w00t
1616 if (c->limit && (c->GetReferenceCount() >= c->limit))
1618 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "OOPS: Connect class limit (%lu) hit, denying", c->limit);
1622 /* if it requires a port ... */
1623 int port = c->config->getInt("port");
1626 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Requires port (%d)", port);
1628 /* and our port doesn't match, fail. */
1629 if (this->GetServerPort() != port)
1633 if (regdone && !c->config->getString("password").empty())
1635 if (ServerInstance->PassCompare(this, c->config->getString("password"), password, c->config->getString("hash")))
1637 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Bad password, skipping");
1642 /* we stop at the first class that meets ALL critera. */
1649 * Okay, assuming we found a class that matches.. switch us into that class, keeping refcounts up to date.
1657 /* looks up a users password for their connection class (<ALLOW>/<DENY> tags)
1658 * NOTE: If the <ALLOW> or <DENY> tag specifies an ip, and this user resolves,
1659 * then their ip will be taken as 'priority' anyway, so for example,
1660 * <connect allow="127.0.0.1"> will match joe!bloggs@localhost
1662 ConnectClass* LocalUser::GetClass()
1667 ConnectClass* User::GetClass()
1672 void User::PurgeEmptyChannels()
1674 // firstly decrement the count on each channel
1675 for (UCListIter f = this->chans.begin(); f != this->chans.end(); f++)
1684 const std::string& FakeUser::GetFullHost()
1686 if (!ServerInstance->Config->HideWhoisServer.empty())
1687 return ServerInstance->Config->HideWhoisServer;
1691 const std::string& FakeUser::GetFullRealHost()
1693 if (!ServerInstance->Config->HideWhoisServer.empty())
1694 return ServerInstance->Config->HideWhoisServer;
1698 ConnectClass::ConnectClass(ConfigTag* tag, char t, const std::string& mask)
1699 : config(tag), type(t), fakelag(true), name("unnamed"), registration_timeout(0), host(mask),
1700 pingtime(0), softsendqmax(0), hardsendqmax(0), recvqmax(0),
1701 penaltythreshold(0), commandrate(0), maxlocal(0), maxglobal(0), maxchans(0), limit(0)
1705 ConnectClass::ConnectClass(ConfigTag* tag, char t, const std::string& mask, const ConnectClass& parent)
1706 : config(tag), type(t), fakelag(parent.fakelag), name("unnamed"),
1707 registration_timeout(parent.registration_timeout), host(mask), pingtime(parent.pingtime),
1708 softsendqmax(parent.softsendqmax), hardsendqmax(parent.hardsendqmax), recvqmax(parent.recvqmax),
1709 penaltythreshold(parent.penaltythreshold), commandrate(parent.commandrate),
1710 maxlocal(parent.maxlocal), maxglobal(parent.maxglobal), maxchans(parent.maxchans),
1715 void ConnectClass::Update(const ConnectClass* src)
1717 config = src->config;
1719 fakelag = src->fakelag;
1721 registration_timeout = src->registration_timeout;
1723 pingtime = src->pingtime;
1724 softsendqmax = src->softsendqmax;
1725 hardsendqmax = src->hardsendqmax;
1726 recvqmax = src->recvqmax;
1727 penaltythreshold = src->penaltythreshold;
1728 commandrate = src->commandrate;
1729 maxlocal = src->maxlocal;
1730 maxglobal = src->maxglobal;
1731 maxchans = src->maxchans;