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->IsEnabled(d))
44 if ((!IsNoticeMaskSet(d) && adding) || (IsNoticeMaskSet(d) && !adding))
46 if ((oldadding != adding) || (!output.length()))
47 output += (adding ? '+' : '-');
49 this->SetNoticeMask(d, adding);
58 if ((*c >= 'A') && (*c <= 'z') && (ServerInstance->SNO->IsEnabled(*c)))
60 if ((!IsNoticeMaskSet(*c) && adding) || (IsNoticeMaskSet(*c) && !adding))
62 if ((oldadding != adding) || (!output.length()))
63 output += (adding ? '+' : '-');
65 this->SetNoticeMask(*c, adding);
71 this->WriteNumeric(ERR_UNKNOWNSNOMASK, "%s %c :is unknown snomask char to me", this->nick.c_str(), *c);
80 std::string s = this->FormatNoticeMasks();
83 this->modes[UM_SNOMASK] = false;
89 void LocalUser::StartDNSLookup()
94 const char* sip = this->GetIPString();
95 UserResolver *res_reverse;
97 QueryType resolvtype = this->client_sa.sa.sa_family == AF_INET6 ? DNS_QUERY_PTR6 : DNS_QUERY_PTR4;
98 res_reverse = new UserResolver(this, sip, resolvtype, cached);
100 ServerInstance->AddResolver(res_reverse, cached);
102 catch (CoreException& e)
104 ServerInstance->Logs->Log("USERS", DEBUG,"Error in resolver: %s",e.GetReason());
108 bool User::IsNoticeMaskSet(unsigned char sm)
112 return (snomasks[sm-65]);
115 void User::SetNoticeMask(unsigned char sm, bool value)
119 snomasks[sm-65] = value;
122 const char* User::FormatNoticeMasks()
124 static char data[MAXBUF];
127 for (int n = 0; n < 64; n++)
130 data[offset++] = n+65;
137 bool User::IsModeSet(unsigned char m)
141 return (modes[m-65]);
144 void User::SetMode(unsigned char m, bool value)
151 const char* User::FormatModes(bool showparameters)
153 static char data[MAXBUF];
157 for (unsigned char n = 0; n < 64; n++)
161 data[offset++] = n + 65;
162 ModeHandler* mh = ServerInstance->Modes->FindMode(n + 65, MODETYPE_USER);
163 if (showparameters && mh && mh->GetNumParams(true))
165 std::string p = mh->GetUserParameter(this);
167 params.append(" ").append(p);
172 strlcat(data, params.c_str(), MAXBUF);
176 User::User(const std::string &uid, const std::string& sid, int type)
177 : uuid(uid), server(sid), usertype(type)
179 age = ServerInstance->Time();
180 signon = idle_lastmsg = 0;
182 quietquit = quitting = exempt = dns_done = false;
183 client_sa.sa.sa_family = AF_UNSPEC;
185 ServerInstance->Logs->Log("USERS", DEBUG, "New UUID for user: %s", uuid.c_str());
187 user_hash::iterator finduuid = ServerInstance->Users->uuidlist->find(uuid);
188 if (finduuid == ServerInstance->Users->uuidlist->end())
189 (*ServerInstance->Users->uuidlist)[uuid] = this;
191 throw CoreException("Duplicate UUID "+std::string(uuid)+" in User constructor");
194 LocalUser::LocalUser(int myfd, irc::sockets::sockaddrs* client, irc::sockets::sockaddrs* servaddr)
195 : User(ServerInstance->GetUID(), ServerInstance->Config->ServerName, USERTYPE_LOCAL), eh(this),
196 bytes_in(0), bytes_out(0), cmds_in(0), cmds_out(0), nping(0), CommandFloodPenalty(0),
201 memcpy(&client_sa, client, sizeof(irc::sockets::sockaddrs));
202 memcpy(&server_sa, servaddr, sizeof(irc::sockets::sockaddrs));
207 if (ServerInstance->Users->uuidlist->find(uuid) != ServerInstance->Users->uuidlist->end())
208 ServerInstance->Logs->Log("USERS", DEFAULT, "User destructor for %s called without cull", uuid.c_str());
211 const std::string& User::MakeHost()
213 if (!this->cached_makehost.empty())
214 return this->cached_makehost;
217 /* This is much faster than snprintf */
219 for(const char* n = ident.c_str(); *n; n++)
222 for(const char* n = host.c_str(); *n; n++)
226 this->cached_makehost.assign(nhost);
228 return this->cached_makehost;
231 const std::string& User::MakeHostIP()
233 if (!this->cached_hostip.empty())
234 return this->cached_hostip;
237 /* This is much faster than snprintf */
239 for(const char* n = ident.c_str(); *n; n++)
242 for(const char* n = this->GetIPString(); *n; n++)
246 this->cached_hostip = ihost;
248 return this->cached_hostip;
251 const std::string& User::GetFullHost()
253 if (!this->cached_fullhost.empty())
254 return this->cached_fullhost;
258 for(const char* n = nick.c_str(); *n; n++)
261 for(const char* n = ident.c_str(); *n; n++)
264 for(const char* n = dhost.c_str(); *n; n++)
268 this->cached_fullhost = result;
270 return this->cached_fullhost;
273 char* User::MakeWildHost()
275 static char nresult[MAXBUF];
277 *t++ = '*'; *t++ = '!';
278 *t++ = '*'; *t++ = '@';
279 for(const char* n = dhost.c_str(); *n; n++)
285 const std::string& User::GetFullRealHost()
287 if (!this->cached_fullrealhost.empty())
288 return this->cached_fullrealhost;
290 char fresult[MAXBUF];
292 for(const char* n = nick.c_str(); *n; n++)
295 for(const char* n = ident.c_str(); *n; n++)
298 for(const char* n = host.c_str(); *n; n++)
302 this->cached_fullrealhost = fresult;
304 return this->cached_fullrealhost;
307 bool LocalUser::IsInvited(const irc::string &channel)
309 time_t now = ServerInstance->Time();
310 InvitedList::iterator safei;
311 for (InvitedList::iterator i = invites.begin(); i != invites.end(); ++i)
313 if (channel == i->first)
315 if (i->second != 0 && now > i->second)
317 /* Expired invite, remove it. */
320 invites.erase(safei);
329 InvitedList* LocalUser::GetInviteList()
331 time_t now = ServerInstance->Time();
332 /* Weed out expired invites here. */
333 InvitedList::iterator safei;
334 for (InvitedList::iterator i = invites.begin(); i != invites.end(); ++i)
336 if (i->second != 0 && now > i->second)
338 /* Expired invite, remove it. */
341 invites.erase(safei);
347 void LocalUser::InviteTo(const irc::string &channel, time_t invtimeout)
349 time_t now = ServerInstance->Time();
350 if (invtimeout != 0 && now > invtimeout) return; /* Don't add invites that are expired from the get-go. */
351 for (InvitedList::iterator i = invites.begin(); i != invites.end(); ++i)
353 if (channel == i->first)
355 if (i->second != 0 && invtimeout > i->second)
357 i->second = invtimeout;
363 invites.push_back(std::make_pair(channel, invtimeout));
366 void LocalUser::RemoveInvite(const irc::string &channel)
368 for (InvitedList::iterator i = invites.begin(); i != invites.end(); i++)
370 if (channel == i->first)
378 bool User::HasModePermission(unsigned char, ModeType)
383 bool LocalUser::HasModePermission(unsigned char mode, ModeType type)
388 if (mode < 'A' || mode > ('A' + 64)) return false;
390 return ((type == MODETYPE_USER ? oper->AllowedUserModes : oper->AllowedChanModes))[(mode - 'A')];
394 * users on remote servers can completely bypass all permissions based checks.
395 * This prevents desyncs when one server has different type/class tags to another.
396 * That having been said, this does open things up to the possibility of source changes
397 * allowing remote kills, etc - but if they have access to the src, they most likely have
398 * access to the conf - so it's an end to a means either way.
400 bool User::HasPermission(const std::string&)
405 bool LocalUser::HasPermission(const std::string &command)
407 // are they even an oper at all?
413 if (oper->AllowedOperCommands.find(command) != oper->AllowedOperCommands.end())
415 else if (oper->AllowedOperCommands.find("*") != oper->AllowedOperCommands.end())
421 bool User::HasPrivPermission(const std::string &privstr, bool noisy)
426 bool LocalUser::HasPrivPermission(const std::string &privstr, bool noisy)
431 this->WriteServ("NOTICE %s :You are not an oper", this->nick.c_str());
435 if (oper->AllowedPrivs.find(privstr) != oper->AllowedPrivs.end())
439 else if (oper->AllowedPrivs.find("*") != oper->AllowedPrivs.end())
445 this->WriteServ("NOTICE %s :Oper type %s does not have access to priv %s", this->nick.c_str(), oper->NameStr(), privstr.c_str());
449 void UserIOHandler::OnDataReady()
454 if (recvq.length() > user->MyClass->GetRecvqMax() && !user->HasPrivPermission("users/flood/increased-buffers"))
456 ServerInstance->Users->QuitUser(user, "RecvQ exceeded");
457 ServerInstance->SNO->WriteToSnoMask('a', "User %s RecvQ of %lu exceeds connect class maximum of %lu",
458 user->nick.c_str(), (unsigned long)recvq.length(), user->MyClass->GetRecvqMax());
460 unsigned long sendqmax = ULONG_MAX;
461 if (!user->HasPrivPermission("users/flood/increased-buffers"))
462 sendqmax = user->MyClass->GetSendqSoftMax();
463 unsigned long penaltymax = ULONG_MAX;
464 if (!user->HasPrivPermission("users/flood/no-fakelag"))
465 penaltymax = user->MyClass->GetPenaltyThreshold() * 1000;
467 while (user->CommandFloodPenalty < penaltymax && getSendQSize() < sendqmax)
470 line.reserve(MAXBUF);
471 std::string::size_type qpos = 0;
472 while (qpos < recvq.length())
474 char c = recvq[qpos++];
485 if (line.length() < MAXBUF - 2)
488 // if we got here, the recvq ran out before we found a newline
491 // just found a newline. Terminate the string, and pull it out of recvq
492 recvq = recvq.substr(qpos);
494 // TODO should this be moved to when it was inserted in recvq?
495 ServerInstance->stats->statsRecv += qpos;
496 user->bytes_in += qpos;
499 ServerInstance->Parser->ProcessBuffer(line, user);
503 // Add pseudo-penalty so that we continue processing after sendq recedes
504 if (user->CommandFloodPenalty == 0 && getSendQSize() >= sendqmax)
505 user->CommandFloodPenalty++;
506 if (user->CommandFloodPenalty >= penaltymax && !user->MyClass->fakelag)
507 ServerInstance->Users->QuitUser(user, "Excess Flood");
510 void UserIOHandler::AddWriteBuf(const std::string &data)
512 if (!user->quitting && getSendQSize() + data.length() > user->MyClass->GetSendqHardMax() &&
513 !user->HasPrivPermission("users/flood/increased-buffers"))
516 * Quit the user FIRST, because otherwise we could recurse
517 * here and hit the same limit.
519 ServerInstance->Users->QuitUser(user, "SendQ exceeded");
520 ServerInstance->SNO->WriteToSnoMask('a', "User %s SendQ exceeds connect class maximum of %lu",
521 user->nick.c_str(), user->MyClass->GetSendqHardMax());
525 // We still want to append data to the sendq of a quitting user,
526 // e.g. their ERROR message that says 'closing link'
531 void UserIOHandler::OnError(BufferedSocketError)
533 ServerInstance->Users->QuitUser(user, getError());
536 CullResult User::cull()
539 ServerInstance->Users->QuitUser(this, "Culled without QuitUser");
540 PurgeEmptyChannels();
542 this->InvalidateCache();
544 if (client_sa.sa.sa_family != AF_UNSPEC)
545 ServerInstance->Users->RemoveCloneCounts(this);
547 return Extensible::cull();
550 CullResult LocalUser::cull()
552 std::vector<LocalUser*>::iterator x = find(ServerInstance->Users->local_users.begin(),ServerInstance->Users->local_users.end(),this);
553 if (x != ServerInstance->Users->local_users.end())
554 ServerInstance->Users->local_users.erase(x);
556 ServerInstance->Logs->Log("USERS", DEBUG, "Failed to remove user from vector");
562 CullResult FakeUser::cull()
564 // Fake users don't quit, they just get culled.
566 ServerInstance->Users->clientlist->erase(nick);
567 ServerInstance->Users->uuidlist->erase(uuid);
571 void User::Oper(OperInfo* info)
573 if (this->IsModeSet('o'))
576 this->modes[UM_OPERATOR] = 1;
578 this->WriteServ("MODE %s :+o", this->nick.c_str());
579 FOREACH_MOD(I_OnOper, OnOper(this, info->name));
581 std::string opername;
582 if (info->oper_block)
583 opername = info->oper_block->getString("name");
587 LocalUser* l = IS_LOCAL(this);
588 std::string vhost = oper->getConfig("vhost");
590 l->ChangeDisplayedHost(vhost.c_str());
591 std::string opClass = oper->getConfig("class");
592 if (!opClass.empty())
593 l->SetClass(opClass);
596 ServerInstance->SNO->WriteToSnoMask('o',"%s (%s@%s) is now an IRC operator of type %s (using oper '%s')",
597 nick.c_str(), ident.c_str(), host.c_str(), oper->NameStr(), opername.c_str());
598 this->WriteNumeric(381, "%s :You are now %s %s", nick.c_str(), strchr("aeiouAEIOU", oper->name[0]) ? "an" : "a", oper->NameStr());
600 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());
601 ServerInstance->Users->all_opers.push_back(this);
603 // Expand permissions from config for faster lookup
607 FOREACH_MOD(I_OnPostOper,OnPostOper(this, oper->name, opername));
610 void OperInfo::init()
612 AllowedOperCommands.clear();
613 AllowedPrivs.clear();
614 AllowedUserModes.reset();
615 AllowedChanModes.reset();
616 AllowedUserModes['o' - 'A'] = true; // Call me paranoid if you want.
618 for(std::vector<reference<ConfigTag> >::iterator iter = class_blocks.begin(); iter != class_blocks.end(); ++iter)
620 ConfigTag* tag = *iter;
621 std::string mycmd, mypriv;
622 /* Process commands */
623 irc::spacesepstream CommandList(tag->getString("commands"));
624 while (CommandList.GetToken(mycmd))
626 AllowedOperCommands.insert(mycmd);
629 irc::spacesepstream PrivList(tag->getString("privs"));
630 while (PrivList.GetToken(mypriv))
632 AllowedPrivs.insert(mypriv);
635 for (unsigned char* c = (unsigned char*)tag->getString("usermodes").c_str(); *c; ++c)
639 this->AllowedUserModes.set();
643 this->AllowedUserModes[*c - 'A'] = true;
647 for (unsigned char* c = (unsigned char*)tag->getString("chanmodes").c_str(); *c; ++c)
651 this->AllowedChanModes.set();
655 this->AllowedChanModes[*c - 'A'] = true;
667 * unset their oper type (what IS_OPER checks).
668 * note, order is important - this must come before modes as -o attempts
669 * to call UnOper. -- w00t
674 /* Remove all oper only modes from the user when the deoper - Bug #466*/
675 std::string moderemove("-");
677 for (unsigned char letter = 'A'; letter <= 'z'; letter++)
679 ModeHandler* mh = ServerInstance->Modes->FindMode(letter, MODETYPE_USER);
680 if (mh && mh->NeedsOper())
681 moderemove += letter;
685 std::vector<std::string> parameters;
686 parameters.push_back(this->nick);
687 parameters.push_back(moderemove);
689 ServerInstance->Parser->CallHandler("MODE", parameters, this);
691 /* remove the user from the oper list. Will remove multiple entries as a safeguard against bug #404 */
692 ServerInstance->Users->all_opers.remove(this);
694 this->modes[UM_OPERATOR] = 0;
697 /* adds or updates an entry in the whowas list */
698 void User::AddToWhoWas()
700 Module* whowas = ServerInstance->Modules->Find("cmd_whowas.so");
703 WhowasRequest req(NULL, whowas, WhowasRequest::WHOWAS_ADD);
710 * Check class restrictions
712 void LocalUser::CheckClass()
714 ConnectClass* a = this->MyClass;
718 ServerInstance->Users->QuitUser(this, "Access denied by configuration");
720 else if (a->type == CC_DENY)
722 ServerInstance->Users->QuitUser(this, "Unauthorised connection");
725 else if ((a->GetMaxLocal()) && (ServerInstance->Users->LocalCloneCount(this) > a->GetMaxLocal()))
727 ServerInstance->Users->QuitUser(this, "No more connections allowed from your host via this connect class (local)");
728 ServerInstance->SNO->WriteToSnoMask('a', "WARNING: maximum LOCAL connections (%ld) exceeded for IP %s", a->GetMaxLocal(), this->GetIPString());
731 else if ((a->GetMaxGlobal()) && (ServerInstance->Users->GlobalCloneCount(this) > a->GetMaxGlobal()))
733 ServerInstance->Users->QuitUser(this, "No more connections allowed from your host via this connect class (global)");
734 ServerInstance->SNO->WriteToSnoMask('a', "WARNING: maximum GLOBAL connections (%ld) exceeded for IP %s", a->GetMaxGlobal(), this->GetIPString());
738 this->nping = ServerInstance->Time() + a->GetPingTime() + ServerInstance->Config->dns_timeout;
741 bool User::CheckLines(bool doZline)
743 const char* check[] = { "G" , "K", (doZline) ? "Z" : NULL, NULL };
747 for (int n = 0; check[n]; ++n)
749 XLine *r = ServerInstance->XLines->MatchesLine(check[n], this);
762 void LocalUser::FullConnect()
764 ServerInstance->stats->statsConnects++;
765 this->idle_lastmsg = ServerInstance->Time();
768 * You may be thinking "wtf, we checked this in User::AddClient!" - and yes, we did, BUT.
769 * At the time AddClient is called, we don't have a resolved host, by here we probably do - which
770 * may put the user into a totally seperate class with different restrictions! so we *must* check again.
771 * Don't remove this! -- w00t
780 this->WriteServ("NOTICE Auth :Welcome to \002%s\002!",ServerInstance->Config->Network.c_str());
781 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());
782 this->WriteNumeric(RPL_YOURHOSTIS, "%s :Your host is %s, running version InspIRCd-2.0",this->nick.c_str(),ServerInstance->Config->ServerName.c_str());
783 this->WriteNumeric(RPL_SERVERCREATED, "%s :This server was created %s %s", this->nick.c_str(), __TIME__, __DATE__);
784 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());
786 ServerInstance->Config->Send005(this);
787 this->WriteNumeric(RPL_YOURUUID, "%s %s :your unique ID", this->nick.c_str(), this->uuid.c_str());
790 if (ServerInstance->Users->unregistered_count)
791 ServerInstance->Users->unregistered_count--;
793 /* Trigger MOTD and LUSERS output, give modules a chance too */
794 ModResult MOD_RESULT;
795 std::string command("MOTD");
796 std::vector<std::string> parameters;
797 FIRST_MOD_RESULT(OnPreCommand, MOD_RESULT, (command, parameters, this, true, command));
799 ServerInstance->CallCommandHandler(command, parameters, this);
801 MOD_RESULT = MOD_RES_PASSTHRU;
803 FIRST_MOD_RESULT(OnPreCommand, MOD_RESULT, (command, parameters, this, true, command));
805 ServerInstance->CallCommandHandler(command, parameters, this);
808 * We don't set REG_ALL until triggering OnUserConnect, so some module events don't spew out stuff
809 * for a user that doesn't exist yet.
811 FOREACH_MOD(I_OnUserConnect,OnUserConnect(this));
813 this->registered = REG_ALL;
815 FOREACH_MOD(I_OnPostConnect,OnPostConnect(this));
817 ServerInstance->SNO->WriteToSnoMask('c',"Client connecting on port %d: %s!%s@%s [%s] [%s]",
818 this->GetServerPort(), this->nick.c_str(), this->ident.c_str(), this->host.c_str(), this->GetIPString(), this->fullname.c_str());
819 ServerInstance->Logs->Log("BANCACHE", DEBUG, "BanCache: Adding NEGATIVE hit for %s", this->GetIPString());
820 ServerInstance->BanCache->AddHit(this->GetIPString(), "", "");
823 void User::InvalidateCache()
825 /* Invalidate cache */
826 cached_fullhost.clear();
827 cached_hostip.clear();
828 cached_makehost.clear();
829 cached_fullrealhost.clear();
832 bool User::ChangeNick(const std::string& newnick, bool force)
834 ModResult MOD_RESULT;
837 ServerInstance->NICKForced.set(this, 1);
838 FIRST_MOD_RESULT(OnUserPreNick, MOD_RESULT, (this, newnick));
839 ServerInstance->NICKForced.set(this, 0);
841 if (MOD_RESULT == MOD_RES_DENY)
843 ServerInstance->stats->statsCollisions++;
847 if (assign(newnick) == assign(nick))
849 // case change, don't need to check Q:lines and such
850 // and, if it's identical including case, we can leave right now
857 * Don't check Q:Lines if it's a server-enforced change, just on the off-chance some fucking *moron*
858 * tries to Q:Line SIDs, also, this means we just get our way period, as it really should be.
859 * Thanks Kein for finding this. -- w00t
861 * Also don't check Q:Lines for remote nickchanges, they should have our Q:Lines anyway to enforce themselves.
864 if (IS_LOCAL(this) && !force)
866 XLine* mq = ServerInstance->XLines->MatchesLine("Q",newnick);
869 if (this->registered == REG_ALL)
871 ServerInstance->SNO->WriteGlobalSno('a', "Q-Lined nickname %s from %s!%s@%s: %s",
872 newnick.c_str(), this->nick.c_str(), this->ident.c_str(), this->host.c_str(), mq->reason.c_str());
874 this->WriteNumeric(432, "%s %s :Invalid nickname: %s",this->nick.c_str(), newnick.c_str(), mq->reason.c_str());
878 if (ServerInstance->Config->RestrictBannedUsers)
880 for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
883 if (chan->GetPrefixValue(this) < VOICE_VALUE && chan->IsBanned(this))
885 this->WriteNumeric(404, "%s %s :Cannot send to channel (you're banned)", this->nick.c_str(), chan->name.c_str());
893 * Uh oh.. if the nickname is in use, and it's not in use by the person using it (doh) --
894 * then we have a potential collide. Check whether someone else is camping on the nick
895 * (i.e. connect -> send NICK, don't send USER.) If they are camping, force-change the
896 * camper to their UID, and allow the incoming nick change.
898 * If the guy using the nick is already using it, tell the incoming nick change to gtfo,
899 * because the nick is already (rightfully) in use. -- w00t
901 User* InUse = ServerInstance->FindNickOnly(newnick);
902 if (InUse && (InUse != this))
904 if (InUse->registered != REG_ALL)
906 /* force the camper to their UUID, and ask them to re-send a NICK. */
907 InUse->WriteTo(InUse, "NICK %s", InUse->uuid.c_str());
908 InUse->WriteNumeric(433, "%s %s :Nickname overruled.", InUse->nick.c_str(), InUse->nick.c_str());
910 ServerInstance->Users->clientlist->erase(InUse->nick);
911 (*(ServerInstance->Users->clientlist))[InUse->uuid] = InUse;
913 InUse->nick = InUse->uuid;
914 InUse->InvalidateCache();
915 InUse->registered &= ~REG_NICK;
919 /* No camping, tell the incoming user to stop trying to change nick ;p */
920 this->WriteNumeric(433, "%s %s :Nickname is already in use.", this->registered >= REG_NICK ? this->nick.c_str() : "*", newnick.c_str());
926 if (this->registered == REG_ALL)
927 this->WriteCommon("NICK %s",newnick.c_str());
928 std::string oldnick = nick;
932 ServerInstance->Users->clientlist->erase(oldnick);
933 (*(ServerInstance->Users->clientlist))[newnick] = this;
935 if (registered == REG_ALL)
936 FOREACH_MOD(I_OnUserPostNick,OnUserPostNick(this,oldnick));
941 int LocalUser::GetServerPort()
943 switch (this->server_sa.sa.sa_family)
946 return htons(this->server_sa.in6.sin6_port);
948 return htons(this->server_sa.in4.sin_port);
953 const char* User::GetIPString()
956 if (cachedip.empty())
958 irc::sockets::satoap(client_sa, cachedip, port);
959 /* IP addresses starting with a : on irc are a Bad Thing (tm) */
960 if (cachedip.c_str()[0] == ':')
961 cachedip.insert(0,1,'0');
964 return cachedip.c_str();
967 irc::sockets::cidr_mask User::GetCIDRMask()
970 switch (client_sa.sa.sa_family)
973 range = ServerInstance->Config->c_ipv6_range;
976 range = ServerInstance->Config->c_ipv4_range;
979 return irc::sockets::cidr_mask(client_sa, range);
982 bool User::SetClientIP(const char* sip)
985 return irc::sockets::aptosa(sip, 0, client_sa);
988 static std::string wide_newline("\r\n");
990 void User::Write(const std::string& text)
994 void User::Write(const char *text, ...)
998 void LocalUser::Write(const std::string& text)
1000 if (!ServerInstance->SE->BoundsCheckFd(&eh))
1003 if (text.length() > MAXBUF - 2)
1005 // this should happen rarely or never. Crop the string at 512 and try again.
1006 std::string try_again = text.substr(0, MAXBUF - 2);
1011 ServerInstance->Logs->Log("USEROUTPUT", DEBUG,"C[%s] O %s", uuid.c_str(), text.c_str());
1013 eh.AddWriteBuf(text);
1014 eh.AddWriteBuf(wide_newline);
1016 ServerInstance->stats->statsSent += text.length() + 2;
1017 this->bytes_out += text.length() + 2;
1023 void LocalUser::Write(const char *text, ...)
1026 char textbuffer[MAXBUF];
1028 va_start(argsPtr, text);
1029 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1032 this->Write(std::string(textbuffer));
1035 void User::WriteServ(const std::string& text)
1037 this->Write(":%s %s",ServerInstance->Config->ServerName.c_str(),text.c_str());
1041 * Same as Write(), except `text' is prefixed with `:server.name '.
1043 void User::WriteServ(const char* text, ...)
1046 char textbuffer[MAXBUF];
1048 va_start(argsPtr, text);
1049 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1052 this->WriteServ(std::string(textbuffer));
1056 void User::WriteNumeric(unsigned int numeric, const char* text, ...)
1059 char textbuffer[MAXBUF];
1061 va_start(argsPtr, text);
1062 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1065 this->WriteNumeric(numeric, std::string(textbuffer));
1068 void User::WriteNumeric(unsigned int numeric, const std::string &text)
1070 char textbuffer[MAXBUF];
1071 ModResult MOD_RESULT;
1073 FIRST_MOD_RESULT(OnNumeric, MOD_RESULT, (this, numeric, text));
1075 if (MOD_RESULT == MOD_RES_DENY)
1078 snprintf(textbuffer,MAXBUF,":%s %03u %s",ServerInstance->Config->ServerName.c_str(), numeric, text.c_str());
1079 this->Write(std::string(textbuffer));
1082 void User::WriteFrom(User *user, const std::string &text)
1086 snprintf(tb,MAXBUF,":%s %s",user->GetFullHost().c_str(),text.c_str());
1088 this->Write(std::string(tb));
1092 /* write text from an originating user to originating user */
1094 void User::WriteFrom(User *user, const char* text, ...)
1097 char textbuffer[MAXBUF];
1099 va_start(argsPtr, text);
1100 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1103 this->WriteFrom(user, std::string(textbuffer));
1107 /* write text to an destination user from a source user (e.g. user privmsg) */
1109 void User::WriteTo(User *dest, const char *data, ...)
1111 char textbuffer[MAXBUF];
1114 va_start(argsPtr, data);
1115 vsnprintf(textbuffer, MAXBUF, data, argsPtr);
1118 this->WriteTo(dest, std::string(textbuffer));
1121 void User::WriteTo(User *dest, const std::string &data)
1123 dest->WriteFrom(this, data);
1126 void User::WriteCommon(const char* text, ...)
1128 char textbuffer[MAXBUF];
1131 if (this->registered != REG_ALL || quitting)
1134 int len = snprintf(textbuffer,MAXBUF,":%s ",this->GetFullHost().c_str());
1136 va_start(argsPtr, text);
1137 vsnprintf(textbuffer + len, MAXBUF - len, text, argsPtr);
1140 this->WriteCommonRaw(std::string(textbuffer), true);
1143 void User::WriteCommonExcept(const char* text, ...)
1145 char textbuffer[MAXBUF];
1148 if (this->registered != REG_ALL || quitting)
1151 int len = snprintf(textbuffer,MAXBUF,":%s ",this->GetFullHost().c_str());
1153 va_start(argsPtr, text);
1154 vsnprintf(textbuffer + len, MAXBUF - len, text, argsPtr);
1157 this->WriteCommonRaw(std::string(textbuffer), false);
1160 void User::WriteCommonRaw(const std::string &line, bool include_self)
1162 if (this->registered != REG_ALL || quitting)
1165 LocalUser::already_sent_id++;
1167 UserChanList include_c(chans);
1168 std::map<User*,bool> exceptions;
1170 exceptions[this] = include_self;
1172 FOREACH_MOD(I_OnBuildNeighborList,OnBuildNeighborList(this, include_c, exceptions));
1174 for (std::map<User*,bool>::iterator i = exceptions.begin(); i != exceptions.end(); ++i)
1176 LocalUser* u = IS_LOCAL(i->first);
1177 if (u && !u->quitting)
1179 u->already_sent = LocalUser::already_sent_id;
1184 for (UCListIter v = include_c.begin(); v != include_c.end(); ++v)
1187 const UserMembList* ulist = c->GetUsers();
1188 for (UserMembList::const_iterator i = ulist->begin(); i != ulist->end(); i++)
1190 LocalUser* u = IS_LOCAL(i->first);
1191 if (u && !u->quitting && u->already_sent != LocalUser::already_sent_id)
1193 u->already_sent = LocalUser::already_sent_id;
1200 void User::WriteCommonQuit(const std::string &normal_text, const std::string &oper_text)
1205 if (this->registered != REG_ALL)
1208 already_sent_t uniq_id = ++LocalUser::already_sent_id;
1210 snprintf(tb1,MAXBUF,":%s QUIT :%s",this->GetFullHost().c_str(),normal_text.c_str());
1211 snprintf(tb2,MAXBUF,":%s QUIT :%s",this->GetFullHost().c_str(),oper_text.c_str());
1212 std::string out1 = tb1;
1213 std::string out2 = tb2;
1215 UserChanList include_c(chans);
1216 std::map<User*,bool> exceptions;
1218 FOREACH_MOD(I_OnBuildNeighborList,OnBuildNeighborList(this, include_c, exceptions));
1220 for (std::map<User*,bool>::iterator i = exceptions.begin(); i != exceptions.end(); ++i)
1222 LocalUser* u = IS_LOCAL(i->first);
1223 if (u && !u->quitting)
1225 u->already_sent = uniq_id;
1227 u->Write(IS_OPER(u) ? out2 : out1);
1230 for (UCListIter v = include_c.begin(); v != include_c.end(); ++v)
1232 const UserMembList* ulist = (*v)->GetUsers();
1233 for (UserMembList::const_iterator i = ulist->begin(); i != ulist->end(); i++)
1235 LocalUser* u = IS_LOCAL(i->first);
1236 if (u && !u->quitting && (u->already_sent != uniq_id))
1238 u->already_sent = uniq_id;
1239 u->Write(IS_OPER(u) ? out2 : out1);
1245 void LocalUser::SendText(const std::string& line)
1250 void RemoteUser::SendText(const std::string& line)
1252 ServerInstance->PI->PushToClient(this, line);
1255 void FakeUser::SendText(const std::string& line)
1259 void User::SendText(const char *text, ...)
1264 va_start(argsPtr, text);
1265 vsnprintf(line, MAXBUF, text, argsPtr);
1268 SendText(std::string(line));
1271 void User::SendText(const std::string &LinePrefix, std::stringstream &TextStream)
1274 int start_pos = LinePrefix.length();
1275 int pos = start_pos;
1276 memcpy(line, LinePrefix.data(), pos);
1278 while (TextStream >> Word)
1280 int len = Word.length();
1281 if (pos + len + 12 > MAXBUF)
1284 SendText(std::string(line));
1288 memcpy(line + pos + 1, Word.data(), len);
1292 SendText(std::string(line));
1295 /* return 0 or 1 depending if users u and u2 share one or more common channels
1296 * (used by QUIT, NICK etc which arent channel specific notices)
1298 * The old algorithm in 1.0 for this was relatively inefficient, iterating over
1299 * the first users channels then the second users channels within the outer loop,
1300 * therefore it was a maximum of x*y iterations (upon returning 0 and checking
1301 * all possible iterations). However this new function instead checks against the
1302 * channel's userlist in the inner loop which is a std::map<User*,User*>
1303 * and saves us time as we already know what pointer value we are after.
1304 * Don't quote me on the maths as i am not a mathematician or computer scientist,
1305 * but i believe this algorithm is now x+(log y) maximum iterations instead.
1307 bool User::SharesChannelWith(User *other)
1309 if ((!other) || (this->registered != REG_ALL) || (other->registered != REG_ALL))
1313 for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
1315 /* Eliminate the inner loop (which used to be ~equal in size to the outer loop)
1316 * by replacing it with a map::find which *should* be more efficient
1318 if ((*i)->HasUser(other))
1324 bool User::ChangeName(const char* gecos)
1326 if (!this->fullname.compare(gecos))
1331 ModResult MOD_RESULT;
1332 FIRST_MOD_RESULT(OnChangeLocalUserGECOS, MOD_RESULT, (IS_LOCAL(this),gecos));
1333 if (MOD_RESULT == MOD_RES_DENY)
1335 FOREACH_MOD(I_OnChangeName,OnChangeName(this,gecos));
1337 this->fullname.assign(gecos, 0, ServerInstance->Config->Limits.MaxGecos);
1342 void User::DoHostCycle(const std::string &quitline)
1344 char buffer[MAXBUF];
1346 if (!ServerInstance->Config->CycleHosts)
1349 already_sent_t silent_id = ++LocalUser::already_sent_id;
1350 already_sent_t seen_id = ++LocalUser::already_sent_id;
1352 UserChanList include_c(chans);
1353 std::map<User*,bool> exceptions;
1355 FOREACH_MOD(I_OnBuildNeighborList,OnBuildNeighborList(this, include_c, exceptions));
1357 for (std::map<User*,bool>::iterator i = exceptions.begin(); i != exceptions.end(); ++i)
1359 LocalUser* u = IS_LOCAL(i->first);
1360 if (u && !u->quitting)
1364 u->already_sent = seen_id;
1369 u->already_sent = silent_id;
1373 for (UCListIter v = include_c.begin(); v != include_c.end(); ++v)
1376 snprintf(buffer, MAXBUF, ":%s JOIN %s", GetFullHost().c_str(), c->name.c_str());
1377 std::string joinline(buffer);
1378 Membership* memb = c->GetUser(this);
1379 std::string modeline = memb->modes;
1380 if (modeline.length() > 0)
1382 for(unsigned int i=0; i < memb->modes.length(); i++)
1383 modeline.append(" ").append(nick);
1384 snprintf(buffer, MAXBUF, ":%s MODE %s +%s", GetFullHost().c_str(), c->name.c_str(), modeline.c_str());
1388 const UserMembList *ulist = c->GetUsers();
1389 for (UserMembList::const_iterator i = ulist->begin(); i != ulist->end(); i++)
1391 LocalUser* u = IS_LOCAL(i->first);
1392 if (u == NULL || u == this)
1394 if (u->already_sent == silent_id)
1397 if (u->already_sent != seen_id)
1400 u->already_sent = seen_id;
1403 if (modeline.length() > 0)
1409 bool User::ChangeDisplayedHost(const char* shost)
1416 ModResult MOD_RESULT;
1417 FIRST_MOD_RESULT(OnChangeLocalUserHost, MOD_RESULT, (IS_LOCAL(this),shost));
1418 if (MOD_RESULT == MOD_RES_DENY)
1422 FOREACH_MOD(I_OnChangeHost, OnChangeHost(this,shost));
1424 std::string quitstr = ":" + GetFullHost() + " QUIT :Changing host";
1426 /* Fix by Om: User::dhost is 65 long, this was truncating some long hosts */
1427 this->dhost.assign(shost, 0, 64);
1429 this->InvalidateCache();
1431 this->DoHostCycle(quitstr);
1434 this->WriteNumeric(RPL_YOURDISPLAYEDHOST, "%s %s :is now your displayed host",this->nick.c_str(),this->dhost.c_str());
1439 bool User::ChangeIdent(const char* newident)
1441 if (this->ident == newident)
1444 FOREACH_MOD(I_OnChangeIdent, OnChangeIdent(this,newident));
1446 std::string quitstr = ":" + GetFullHost() + " QUIT :Changing ident";
1448 this->ident.assign(newident, 0, ServerInstance->Config->Limits.IdentMax + 1);
1450 this->InvalidateCache();
1452 this->DoHostCycle(quitstr);
1457 void User::SendAll(const char* command, const char* text, ...)
1459 char textbuffer[MAXBUF];
1460 char formatbuffer[MAXBUF];
1463 va_start(argsPtr, text);
1464 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1467 snprintf(formatbuffer,MAXBUF,":%s %s $* :%s", this->GetFullHost().c_str(), command, textbuffer);
1468 std::string fmt = formatbuffer;
1470 for (std::vector<LocalUser*>::const_iterator i = ServerInstance->Users->local_users.begin(); i != ServerInstance->Users->local_users.end(); i++)
1477 std::string User::ChannelList(User* source, bool spy)
1481 for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
1484 /* If the target is the sender, neither +p nor +s is set, or
1485 * the channel contains the user, it is not a spy channel
1487 if (spy != (source == this || !(c->IsModeSet('p') || c->IsModeSet('s')) || c->HasUser(source)))
1488 list.append(c->GetPrefixChar(this)).append(c->name).append(" ");
1494 void User::SplitChanList(User* dest, const std::string &cl)
1497 std::ostringstream prefix;
1498 std::string::size_type start, pos, length;
1500 prefix << this->nick << " " << dest->nick << " :";
1501 line = prefix.str();
1502 int namelen = ServerInstance->Config->ServerName.length() + 6;
1504 for (start = 0; (pos = cl.find(' ', start)) != std::string::npos; start = pos+1)
1506 length = (pos == std::string::npos) ? cl.length() : pos;
1508 if (line.length() + namelen + length - start > 510)
1510 ServerInstance->SendWhoisLine(this, dest, 319, "%s", line.c_str());
1511 line = prefix.str();
1514 if(pos == std::string::npos)
1516 line.append(cl.substr(start, length - start));
1521 line.append(cl.substr(start, length - start + 1));
1527 ServerInstance->SendWhoisLine(this, dest, 319, "%s", line.c_str());
1532 * Sets a user's connection class.
1533 * If the class name is provided, it will be used. Otherwise, the class will be guessed using host/ip/ident/etc.
1534 * NOTE: If the <ALLOW> or <DENY> tag specifies an ip, and this user resolves,
1535 * then their ip will be taken as 'priority' anyway, so for example,
1536 * <connect allow="127.0.0.1"> will match joe!bloggs@localhost
1538 void LocalUser::SetClass(const std::string &explicit_name)
1540 ConnectClass *found = NULL;
1542 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Setting connect class for UID %s", this->uuid.c_str());
1544 if (!explicit_name.empty())
1546 for (ClassVector::iterator i = ServerInstance->Config->Classes.begin(); i != ServerInstance->Config->Classes.end(); i++)
1548 ConnectClass* c = *i;
1550 if (explicit_name == c->name)
1552 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Explicitly set to %s", explicit_name.c_str());
1559 for (ClassVector::iterator i = ServerInstance->Config->Classes.begin(); i != ServerInstance->Config->Classes.end(); i++)
1561 ConnectClass* c = *i;
1562 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Checking %s", c->GetName().c_str());
1564 ModResult MOD_RESULT;
1565 FIRST_MOD_RESULT(OnSetConnectClass, MOD_RESULT, (this,c));
1566 if (MOD_RESULT == MOD_RES_DENY)
1568 if (MOD_RESULT == MOD_RES_ALLOW)
1570 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Class forced by module to %s", c->GetName().c_str());
1575 if (c->type == CC_NAMED)
1578 bool regdone = (registered != REG_NONE);
1579 if (c->config->getBool("registered", regdone) != regdone)
1582 /* check if host matches.. */
1583 if (c->GetHost().length() && !InspIRCd::MatchCIDR(this->GetIPString(), c->GetHost(), NULL) &&
1584 !InspIRCd::MatchCIDR(this->host, c->GetHost(), NULL))
1586 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "No host match (for %s)", c->GetHost().c_str());
1591 * deny change if change will take class over the limit check it HERE, not after we found a matching class,
1592 * because we should attempt to find another class if this one doesn't match us. -- w00t
1594 if (c->limit && (c->GetReferenceCount() >= c->limit))
1596 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "OOPS: Connect class limit (%lu) hit, denying", c->limit);
1600 /* if it requires a port ... */
1601 int port = c->config->getInt("port");
1604 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Requires port (%d)", port);
1606 /* and our port doesn't match, fail. */
1607 if (this->GetServerPort() != port)
1611 if (!c->config->getString("pass").empty())
1613 if (ServerInstance->PassCompare(this, c->config->getString("pass"), password, c->config->getString("hash")))
1615 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Bad password, skipping");
1620 /* we stop at the first class that meets ALL critera. */
1627 * Okay, assuming we found a class that matches.. switch us into that class, keeping refcounts up to date.
1635 /* looks up a users password for their connection class (<ALLOW>/<DENY> tags)
1636 * NOTE: If the <ALLOW> or <DENY> tag specifies an ip, and this user resolves,
1637 * then their ip will be taken as 'priority' anyway, so for example,
1638 * <connect allow="127.0.0.1"> will match joe!bloggs@localhost
1640 ConnectClass* LocalUser::GetClass()
1645 ConnectClass* User::GetClass()
1650 void User::PurgeEmptyChannels()
1652 // firstly decrement the count on each channel
1653 for (UCListIter f = this->chans.begin(); f != this->chans.end(); f++)
1662 const std::string& FakeUser::GetFullHost()
1664 if (!ServerInstance->Config->HideWhoisServer.empty())
1665 return ServerInstance->Config->HideWhoisServer;
1669 const std::string& FakeUser::GetFullRealHost()
1671 if (!ServerInstance->Config->HideWhoisServer.empty())
1672 return ServerInstance->Config->HideWhoisServer;
1676 ConnectClass::ConnectClass(ConfigTag* tag, char t, const std::string& mask)
1677 : config(tag), type(t), fakelag(true), name("unnamed"), registration_timeout(0), host(mask),
1678 pingtime(0), softsendqmax(0), hardsendqmax(0), recvqmax(0),
1679 penaltythreshold(0), commandrate(0), maxlocal(0), maxglobal(0), maxchans(0), limit(0)
1683 ConnectClass::ConnectClass(ConfigTag* tag, char t, const std::string& mask, const ConnectClass& parent)
1684 : config(tag), type(t), fakelag(parent.fakelag), name("unnamed"),
1685 registration_timeout(parent.registration_timeout), host(mask), pingtime(parent.pingtime),
1686 softsendqmax(parent.softsendqmax), hardsendqmax(parent.hardsendqmax), recvqmax(parent.recvqmax),
1687 penaltythreshold(parent.penaltythreshold), commandrate(parent.commandrate),
1688 maxlocal(parent.maxlocal), maxglobal(parent.maxglobal), maxchans(parent.maxchans),
1693 void ConnectClass::Update(const ConnectClass* src)
1696 registration_timeout = src->registration_timeout;
1698 pingtime = src->pingtime;
1699 softsendqmax = src->softsendqmax;
1700 hardsendqmax = src->hardsendqmax;
1701 recvqmax = src->recvqmax;
1702 penaltythreshold = src->penaltythreshold;
1703 maxlocal = src->maxlocal;
1704 maxglobal = src->maxglobal;