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 typedef unsigned int uniq_id_t;
29 array = new uniq_id_t[ServerInstance->SE->GetMaxFds()];
30 memset(array, 0, ServerInstance->SE->GetMaxFds() * sizeof(uniq_id_t));
34 sent() : uniq_id(static_cast<uniq_id_t>(-1)), array(NULL) {}
35 inline uniq_id_t operator++()
41 inline uniq_id_t& operator[](int i)
51 static sent already_sent;
53 std::string User::ProcessNoticeMasks(const char *sm)
55 bool adding = true, oldadding = false;
70 for (unsigned char d = 'A'; d <= 'z'; d++)
72 if (ServerInstance->SNO->IsEnabled(d))
74 if ((!IsNoticeMaskSet(d) && adding) || (IsNoticeMaskSet(d) && !adding))
76 if ((oldadding != adding) || (!output.length()))
77 output += (adding ? '+' : '-');
79 this->SetNoticeMask(d, adding);
88 if ((*c >= 'A') && (*c <= 'z') && (ServerInstance->SNO->IsEnabled(*c)))
90 if ((!IsNoticeMaskSet(*c) && adding) || (IsNoticeMaskSet(*c) && !adding))
92 if ((oldadding != adding) || (!output.length()))
93 output += (adding ? '+' : '-');
95 this->SetNoticeMask(*c, adding);
101 this->WriteNumeric(ERR_UNKNOWNSNOMASK, "%s %c :is unknown snomask char to me", this->nick.c_str(), *c);
110 std::string s = this->FormatNoticeMasks();
113 this->modes[UM_SNOMASK] = false;
119 void LocalUser::StartDNSLookup()
124 const char* sip = this->GetIPString();
125 UserResolver *res_reverse;
127 QueryType resolvtype = this->client_sa.sa.sa_family == AF_INET6 ? DNS_QUERY_PTR6 : DNS_QUERY_PTR4;
128 res_reverse = new UserResolver(this, sip, resolvtype, cached);
130 ServerInstance->AddResolver(res_reverse, cached);
132 catch (CoreException& e)
134 ServerInstance->Logs->Log("USERS", DEBUG,"Error in resolver: %s",e.GetReason());
138 bool User::IsNoticeMaskSet(unsigned char sm)
142 return (snomasks[sm-65]);
145 void User::SetNoticeMask(unsigned char sm, bool value)
149 snomasks[sm-65] = value;
152 const char* User::FormatNoticeMasks()
154 static char data[MAXBUF];
157 for (int n = 0; n < 64; n++)
160 data[offset++] = n+65;
167 bool User::IsModeSet(unsigned char m)
171 return (modes[m-65]);
174 void User::SetMode(unsigned char m, bool value)
181 const char* User::FormatModes(bool showparameters)
183 static char data[MAXBUF];
187 for (unsigned char n = 0; n < 64; n++)
191 data[offset++] = n + 65;
192 ModeHandler* mh = ServerInstance->Modes->FindMode(n + 65, MODETYPE_USER);
193 if (showparameters && mh && mh->GetNumParams(true))
195 std::string p = mh->GetUserParameter(this);
197 params.append(" ").append(p);
202 strlcat(data, params.c_str(), MAXBUF);
206 User::User(const std::string &uid, const std::string& sid, int type)
207 : uuid(uid), server(sid), usertype(type)
209 age = ServerInstance->Time();
210 signon = idle_lastmsg = 0;
212 quietquit = quitting = exempt = dns_done = false;
213 client_sa.sa.sa_family = AF_UNSPEC;
215 ServerInstance->Logs->Log("USERS", DEBUG, "New UUID for user: %s", uuid.c_str());
217 user_hash::iterator finduuid = ServerInstance->Users->uuidlist->find(uuid);
218 if (finduuid == ServerInstance->Users->uuidlist->end())
219 (*ServerInstance->Users->uuidlist)[uuid] = this;
221 throw CoreException("Duplicate UUID "+std::string(uuid)+" in User constructor");
224 LocalUser::LocalUser(int myfd, irc::sockets::sockaddrs* client, irc::sockets::sockaddrs* servaddr)
225 : User(ServerInstance->GetUID(), ServerInstance->Config->ServerName, USERTYPE_LOCAL), eh(this)
227 bytes_in = bytes_out = cmds_in = cmds_out = 0;
228 server_sa.sa.sa_family = AF_UNSPEC;
229 CommandFloodPenalty = 0;
230 lastping = nping = 0;
232 memcpy(&client_sa, client, sizeof(irc::sockets::sockaddrs));
233 memcpy(&server_sa, servaddr, sizeof(irc::sockets::sockaddrs));
238 if (ServerInstance->Users->uuidlist->find(uuid) != ServerInstance->Users->uuidlist->end())
239 ServerInstance->Logs->Log("USERS", DEFAULT, "User destructor for %s called without cull", uuid.c_str());
242 const std::string& User::MakeHost()
244 if (!this->cached_makehost.empty())
245 return this->cached_makehost;
248 /* This is much faster than snprintf */
250 for(const char* n = ident.c_str(); *n; n++)
253 for(const char* n = host.c_str(); *n; n++)
257 this->cached_makehost.assign(nhost);
259 return this->cached_makehost;
262 const std::string& User::MakeHostIP()
264 if (!this->cached_hostip.empty())
265 return this->cached_hostip;
268 /* This is much faster than snprintf */
270 for(const char* n = ident.c_str(); *n; n++)
273 for(const char* n = this->GetIPString(); *n; n++)
277 this->cached_hostip = ihost;
279 return this->cached_hostip;
282 const std::string& User::GetFullHost()
284 if (!this->cached_fullhost.empty())
285 return this->cached_fullhost;
289 for(const char* n = nick.c_str(); *n; n++)
292 for(const char* n = ident.c_str(); *n; n++)
295 for(const char* n = dhost.c_str(); *n; n++)
299 this->cached_fullhost = result;
301 return this->cached_fullhost;
304 char* User::MakeWildHost()
306 static char nresult[MAXBUF];
308 *t++ = '*'; *t++ = '!';
309 *t++ = '*'; *t++ = '@';
310 for(const char* n = dhost.c_str(); *n; n++)
316 const std::string& User::GetFullRealHost()
318 if (!this->cached_fullrealhost.empty())
319 return this->cached_fullrealhost;
321 char fresult[MAXBUF];
323 for(const char* n = nick.c_str(); *n; n++)
326 for(const char* n = ident.c_str(); *n; n++)
329 for(const char* n = host.c_str(); *n; n++)
333 this->cached_fullrealhost = fresult;
335 return this->cached_fullrealhost;
338 bool LocalUser::IsInvited(const irc::string &channel)
340 time_t now = ServerInstance->Time();
341 InvitedList::iterator safei;
342 for (InvitedList::iterator i = invites.begin(); i != invites.end(); ++i)
344 if (channel == i->first)
346 if (i->second != 0 && now > i->second)
348 /* Expired invite, remove it. */
351 invites.erase(safei);
360 InvitedList* LocalUser::GetInviteList()
362 time_t now = ServerInstance->Time();
363 /* Weed out expired invites here. */
364 InvitedList::iterator safei;
365 for (InvitedList::iterator i = invites.begin(); i != invites.end(); ++i)
367 if (i->second != 0 && now > i->second)
369 /* Expired invite, remove it. */
372 invites.erase(safei);
378 void LocalUser::InviteTo(const irc::string &channel, time_t invtimeout)
380 time_t now = ServerInstance->Time();
381 if (invtimeout != 0 && now > invtimeout) return; /* Don't add invites that are expired from the get-go. */
382 for (InvitedList::iterator i = invites.begin(); i != invites.end(); ++i)
384 if (channel == i->first)
386 if (i->second != 0 && invtimeout > i->second)
388 i->second = invtimeout;
394 invites.push_back(std::make_pair(channel, invtimeout));
397 void LocalUser::RemoveInvite(const irc::string &channel)
399 for (InvitedList::iterator i = invites.begin(); i != invites.end(); i++)
401 if (channel == i->first)
409 bool User::HasModePermission(unsigned char, ModeType)
414 bool LocalUser::HasModePermission(unsigned char mode, ModeType type)
419 if (mode < 'A' || mode > ('A' + 64)) return false;
421 return ((type == MODETYPE_USER ? oper->AllowedUserModes : oper->AllowedChanModes))[(mode - 'A')];
425 * users on remote servers can completely bypass all permissions based checks.
426 * This prevents desyncs when one server has different type/class tags to another.
427 * That having been said, this does open things up to the possibility of source changes
428 * allowing remote kills, etc - but if they have access to the src, they most likely have
429 * access to the conf - so it's an end to a means either way.
431 bool User::HasPermission(const std::string&)
436 bool LocalUser::HasPermission(const std::string &command)
438 // are they even an oper at all?
444 if (oper->AllowedOperCommands.find(command) != oper->AllowedOperCommands.end())
446 else if (oper->AllowedOperCommands.find("*") != oper->AllowedOperCommands.end())
452 bool User::HasPrivPermission(const std::string &privstr, bool noisy)
457 bool LocalUser::HasPrivPermission(const std::string &privstr, bool noisy)
462 this->WriteServ("NOTICE %s :You are not an oper", this->nick.c_str());
466 if (oper->AllowedPrivs.find(privstr) != oper->AllowedPrivs.end())
470 else if (oper->AllowedPrivs.find("*") != oper->AllowedPrivs.end())
476 this->WriteServ("NOTICE %s :Oper type %s does not have access to priv %s", this->nick.c_str(), oper->NameStr(), privstr.c_str());
480 void UserIOHandler::OnDataReady()
485 if (recvq.length() > user->MyClass->GetRecvqMax() && !user->HasPrivPermission("users/flood/increased-buffers"))
487 ServerInstance->Users->QuitUser(user, "RecvQ exceeded");
488 ServerInstance->SNO->WriteToSnoMask('a', "User %s RecvQ of %lu exceeds connect class maximum of %lu",
489 user->nick.c_str(), (unsigned long)recvq.length(), user->MyClass->GetRecvqMax());
491 unsigned long sendqmax = ULONG_MAX;
492 if (!user->HasPrivPermission("users/flood/increased-buffers"))
493 sendqmax = user->MyClass->GetSendqSoftMax();
494 unsigned long penaltymax = ULONG_MAX;
495 if (!user->HasPrivPermission("users/flood/no-fakelag"))
496 penaltymax = user->MyClass->GetPenaltyThreshold() * 1000;
498 while (user->CommandFloodPenalty < penaltymax && getSendQSize() < sendqmax)
501 line.reserve(MAXBUF);
502 std::string::size_type qpos = 0;
503 while (qpos < recvq.length())
505 char c = recvq[qpos++];
516 if (line.length() < MAXBUF - 2)
519 // if we got here, the recvq ran out before we found a newline
522 // just found a newline. Terminate the string, and pull it out of recvq
523 recvq = recvq.substr(qpos);
525 // TODO should this be moved to when it was inserted in recvq?
526 ServerInstance->stats->statsRecv += qpos;
527 user->bytes_in += qpos;
530 ServerInstance->Parser->ProcessBuffer(line, user);
534 // Add pseudo-penalty so that we continue processing after sendq recedes
535 if (user->CommandFloodPenalty == 0 && getSendQSize() >= sendqmax)
536 user->CommandFloodPenalty++;
537 if (user->CommandFloodPenalty >= penaltymax && !user->MyClass->fakelag)
538 ServerInstance->Users->QuitUser(user, "Excess Flood");
541 void UserIOHandler::AddWriteBuf(const std::string &data)
543 if (!user->quitting && getSendQSize() + data.length() > user->MyClass->GetSendqHardMax() &&
544 !user->HasPrivPermission("users/flood/increased-buffers"))
547 * Quit the user FIRST, because otherwise we could recurse
548 * here and hit the same limit.
550 ServerInstance->Users->QuitUser(user, "SendQ exceeded");
551 ServerInstance->SNO->WriteToSnoMask('a', "User %s SendQ exceeds connect class maximum of %lu",
552 user->nick.c_str(), user->MyClass->GetSendqHardMax());
556 // We still want to append data to the sendq of a quitting user,
557 // e.g. their ERROR message that says 'closing link'
562 void UserIOHandler::OnError(BufferedSocketError)
564 ServerInstance->Users->QuitUser(user, getError());
567 CullResult User::cull()
570 ServerInstance->Users->QuitUser(this, "Culled without QuitUser");
571 PurgeEmptyChannels();
573 this->InvalidateCache();
575 if (client_sa.sa.sa_family != AF_UNSPEC)
576 ServerInstance->Users->RemoveCloneCounts(this);
578 return Extensible::cull();
581 CullResult LocalUser::cull()
583 std::vector<LocalUser*>::iterator x = find(ServerInstance->Users->local_users.begin(),ServerInstance->Users->local_users.end(),this);
584 if (x != ServerInstance->Users->local_users.end())
585 ServerInstance->Users->local_users.erase(x);
587 ServerInstance->Logs->Log("USERS", DEBUG, "Failed to remove user from vector");
593 CullResult FakeUser::cull()
595 // Fake users don't quit, they just get culled.
597 ServerInstance->Users->clientlist->erase(nick);
598 ServerInstance->Users->uuidlist->erase(uuid);
602 void User::Oper(OperInfo* info)
604 if (this->IsModeSet('o'))
607 this->modes[UM_OPERATOR] = 1;
609 this->WriteServ("MODE %s :+o", this->nick.c_str());
610 FOREACH_MOD(I_OnOper, OnOper(this, info->name));
612 std::string opername;
613 if (info->oper_block)
614 opername = info->oper_block->getString("name");
618 LocalUser* l = IS_LOCAL(this);
619 std::string vhost = oper->getConfig("vhost");
621 l->ChangeDisplayedHost(vhost.c_str());
622 std::string opClass = oper->getConfig("class");
623 if (!opClass.empty())
624 l->SetClass(opClass);
627 ServerInstance->SNO->WriteToSnoMask('o',"%s (%s@%s) is now an IRC operator of type %s (using oper '%s')",
628 nick.c_str(), ident.c_str(), host.c_str(), oper->NameStr(), opername.c_str());
629 this->WriteNumeric(381, "%s :You are now %s %s", nick.c_str(), strchr("aeiouAEIOU", oper->name[0]) ? "an" : "a", oper->NameStr());
631 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());
632 ServerInstance->Users->all_opers.push_back(this);
634 // Expand permissions from config for faster lookup
638 FOREACH_MOD(I_OnPostOper,OnPostOper(this, oper->name, opername));
641 void OperInfo::init()
643 AllowedOperCommands.clear();
644 AllowedPrivs.clear();
645 AllowedUserModes.reset();
646 AllowedChanModes.reset();
647 AllowedUserModes['o' - 'A'] = true; // Call me paranoid if you want.
649 for(std::vector<reference<ConfigTag> >::iterator iter = class_blocks.begin(); iter != class_blocks.end(); ++iter)
651 ConfigTag* tag = *iter;
652 std::string mycmd, mypriv;
653 /* Process commands */
654 irc::spacesepstream CommandList(tag->getString("commands"));
655 while (CommandList.GetToken(mycmd))
657 AllowedOperCommands.insert(mycmd);
660 irc::spacesepstream PrivList(tag->getString("privs"));
661 while (PrivList.GetToken(mypriv))
663 AllowedPrivs.insert(mypriv);
666 for (unsigned char* c = (unsigned char*)tag->getString("usermodes").c_str(); *c; ++c)
670 this->AllowedUserModes.set();
674 this->AllowedUserModes[*c - 'A'] = true;
678 for (unsigned char* c = (unsigned char*)tag->getString("chanmodes").c_str(); *c; ++c)
682 this->AllowedChanModes.set();
686 this->AllowedChanModes[*c - 'A'] = true;
698 * unset their oper type (what IS_OPER checks).
699 * note, order is important - this must come before modes as -o attempts
700 * to call UnOper. -- w00t
705 /* Remove all oper only modes from the user when the deoper - Bug #466*/
706 std::string moderemove("-");
708 for (unsigned char letter = 'A'; letter <= 'z'; letter++)
710 ModeHandler* mh = ServerInstance->Modes->FindMode(letter, MODETYPE_USER);
711 if (mh && mh->NeedsOper())
712 moderemove += letter;
716 std::vector<std::string> parameters;
717 parameters.push_back(this->nick);
718 parameters.push_back(moderemove);
720 ServerInstance->Parser->CallHandler("MODE", parameters, this);
722 /* remove the user from the oper list. Will remove multiple entries as a safeguard against bug #404 */
723 ServerInstance->Users->all_opers.remove(this);
725 this->modes[UM_OPERATOR] = 0;
728 /* adds or updates an entry in the whowas list */
729 void User::AddToWhoWas()
731 Module* whowas = ServerInstance->Modules->Find("cmd_whowas.so");
734 WhowasRequest req(NULL, whowas, WhowasRequest::WHOWAS_ADD);
741 * Check class restrictions
743 void LocalUser::CheckClass()
745 ConnectClass* a = this->MyClass;
749 ServerInstance->Users->QuitUser(this, "Access denied by configuration");
751 else if (a->type == CC_DENY)
753 ServerInstance->Users->QuitUser(this, "Unauthorised connection");
756 else if ((a->GetMaxLocal()) && (ServerInstance->Users->LocalCloneCount(this) > a->GetMaxLocal()))
758 ServerInstance->Users->QuitUser(this, "No more connections allowed from your host via this connect class (local)");
759 ServerInstance->SNO->WriteToSnoMask('a', "WARNING: maximum LOCAL connections (%ld) exceeded for IP %s", a->GetMaxLocal(), this->GetIPString());
762 else if ((a->GetMaxGlobal()) && (ServerInstance->Users->GlobalCloneCount(this) > a->GetMaxGlobal()))
764 ServerInstance->Users->QuitUser(this, "No more connections allowed from your host via this connect class (global)");
765 ServerInstance->SNO->WriteToSnoMask('a', "WARNING: maximum GLOBAL connections (%ld) exceeded for IP %s", a->GetMaxGlobal(), this->GetIPString());
769 this->nping = ServerInstance->Time() + a->GetPingTime() + ServerInstance->Config->dns_timeout;
772 bool User::CheckLines(bool doZline)
774 const char* check[] = { "G" , "K", (doZline) ? "Z" : NULL, NULL };
778 for (int n = 0; check[n]; ++n)
780 XLine *r = ServerInstance->XLines->MatchesLine(check[n], this);
793 void LocalUser::FullConnect()
795 ServerInstance->stats->statsConnects++;
796 this->idle_lastmsg = ServerInstance->Time();
799 * You may be thinking "wtf, we checked this in User::AddClient!" - and yes, we did, BUT.
800 * At the time AddClient is called, we don't have a resolved host, by here we probably do - which
801 * may put the user into a totally seperate class with different restrictions! so we *must* check again.
802 * Don't remove this! -- w00t
806 /* Check the password, if one is required by the user's connect class.
807 * This CANNOT be in CheckClass(), because that is called prior to PASS as well!
809 if (!MyClass->config->getString("pass").empty())
811 if (ServerInstance->PassCompare(this, MyClass->config->getString("pass"), password, MyClass->config->getString("hash")))
813 ServerInstance->Users->QuitUser(this, "Invalid password");
823 this->WriteServ("NOTICE Auth :Welcome to \002%s\002!",ServerInstance->Config->Network.c_str());
824 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());
825 this->WriteNumeric(RPL_YOURHOSTIS, "%s :Your host is %s, running version InspIRCd-2.0",this->nick.c_str(),ServerInstance->Config->ServerName.c_str());
826 this->WriteNumeric(RPL_SERVERCREATED, "%s :This server was created %s %s", this->nick.c_str(), __TIME__, __DATE__);
827 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());
829 ServerInstance->Config->Send005(this);
830 this->WriteNumeric(RPL_YOURUUID, "%s %s :your unique ID", this->nick.c_str(), this->uuid.c_str());
833 if (ServerInstance->Users->unregistered_count)
834 ServerInstance->Users->unregistered_count--;
836 /* Trigger MOTD and LUSERS output, give modules a chance too */
837 ModResult MOD_RESULT;
838 std::string command("MOTD");
839 std::vector<std::string> parameters;
840 FIRST_MOD_RESULT(OnPreCommand, MOD_RESULT, (command, parameters, this, true, command));
842 ServerInstance->CallCommandHandler(command, parameters, this);
844 MOD_RESULT = MOD_RES_PASSTHRU;
846 FIRST_MOD_RESULT(OnPreCommand, MOD_RESULT, (command, parameters, this, true, command));
848 ServerInstance->CallCommandHandler(command, parameters, this);
851 * We don't set REG_ALL until triggering OnUserConnect, so some module events don't spew out stuff
852 * for a user that doesn't exist yet.
854 FOREACH_MOD(I_OnUserConnect,OnUserConnect(this));
856 this->registered = REG_ALL;
858 FOREACH_MOD(I_OnPostConnect,OnPostConnect(this));
860 ServerInstance->SNO->WriteToSnoMask('c',"Client connecting on port %d: %s!%s@%s [%s] [%s]",
861 this->GetServerPort(), this->nick.c_str(), this->ident.c_str(), this->host.c_str(), this->GetIPString(), this->fullname.c_str());
862 ServerInstance->Logs->Log("BANCACHE", DEBUG, "BanCache: Adding NEGATIVE hit for %s", this->GetIPString());
863 ServerInstance->BanCache->AddHit(this->GetIPString(), "", "");
866 void User::InvalidateCache()
868 /* Invalidate cache */
869 cached_fullhost.clear();
870 cached_hostip.clear();
871 cached_makehost.clear();
872 cached_fullrealhost.clear();
875 bool User::ChangeNick(const std::string& newnick, bool force)
877 ModResult MOD_RESULT;
880 ServerInstance->NICKForced.set(this, 1);
881 FIRST_MOD_RESULT(OnUserPreNick, MOD_RESULT, (this, newnick));
882 ServerInstance->NICKForced.set(this, 0);
884 if (MOD_RESULT == MOD_RES_DENY)
886 ServerInstance->stats->statsCollisions++;
890 if (assign(newnick) == assign(nick))
892 // case change, don't need to check Q:lines and such
893 // and, if it's identical including case, we can leave right now
900 * Don't check Q:Lines if it's a server-enforced change, just on the off-chance some fucking *moron*
901 * tries to Q:Line SIDs, also, this means we just get our way period, as it really should be.
902 * Thanks Kein for finding this. -- w00t
904 * Also don't check Q:Lines for remote nickchanges, they should have our Q:Lines anyway to enforce themselves.
909 XLine* mq = ServerInstance->XLines->MatchesLine("Q",newnick);
912 if (this->registered == REG_ALL)
914 ServerInstance->SNO->WriteGlobalSno('a', "Q-Lined nickname %s from %s!%s@%s: %s",
915 newnick.c_str(), this->nick.c_str(), this->ident.c_str(), this->host.c_str(), mq->reason.c_str());
917 this->WriteNumeric(432, "%s %s :Invalid nickname: %s",this->nick.c_str(), newnick.c_str(), mq->reason.c_str());
921 if (ServerInstance->Config->RestrictBannedUsers)
923 for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
926 if (chan->GetPrefixValue(this) < VOICE_VALUE && chan->IsBanned(this))
928 this->WriteNumeric(404, "%s %s :Cannot send to channel (you're banned)", this->nick.c_str(), chan->name.c_str());
936 * Uh oh.. if the nickname is in use, and it's not in use by the person using it (doh) --
937 * then we have a potential collide. Check whether someone else is camping on the nick
938 * (i.e. connect -> send NICK, don't send USER.) If they are camping, force-change the
939 * camper to their UID, and allow the incoming nick change.
941 * If the guy using the nick is already using it, tell the incoming nick change to gtfo,
942 * because the nick is already (rightfully) in use. -- w00t
944 User* InUse = ServerInstance->FindNickOnly(newnick);
945 if (InUse && (InUse != this))
947 if (InUse->registered != REG_ALL)
949 /* force the camper to their UUID, and ask them to re-send a NICK. */
950 InUse->WriteTo(InUse, "NICK %s", InUse->uuid.c_str());
951 InUse->WriteNumeric(433, "%s %s :Nickname overruled.", InUse->nick.c_str(), InUse->nick.c_str());
953 ServerInstance->Users->clientlist->erase(InUse->nick);
954 (*(ServerInstance->Users->clientlist))[InUse->uuid] = InUse;
956 InUse->nick = InUse->uuid;
957 InUse->InvalidateCache();
958 InUse->registered &= ~REG_NICK;
962 /* No camping, tell the incoming user to stop trying to change nick ;p */
963 this->WriteNumeric(433, "%s %s :Nickname is already in use.", this->registered >= REG_NICK ? this->nick.c_str() : "*", newnick.c_str());
969 if (this->registered == REG_ALL)
970 this->WriteCommon("NICK %s",newnick.c_str());
971 std::string oldnick = nick;
975 ServerInstance->Users->clientlist->erase(oldnick);
976 (*(ServerInstance->Users->clientlist))[newnick] = this;
978 if (registered == REG_ALL)
979 FOREACH_MOD(I_OnUserPostNick,OnUserPostNick(this,oldnick));
984 int LocalUser::GetServerPort()
986 switch (this->server_sa.sa.sa_family)
989 return htons(this->server_sa.in6.sin6_port);
991 return htons(this->server_sa.in4.sin_port);
996 const char* User::GetIPString()
999 if (cachedip.empty())
1001 irc::sockets::satoap(client_sa, cachedip, port);
1002 /* IP addresses starting with a : on irc are a Bad Thing (tm) */
1003 if (cachedip.c_str()[0] == ':')
1004 cachedip.insert(0,1,'0');
1007 return cachedip.c_str();
1010 irc::sockets::cidr_mask User::GetCIDRMask()
1013 switch (client_sa.sa.sa_family)
1016 range = ServerInstance->Config->c_ipv6_range;
1019 range = ServerInstance->Config->c_ipv4_range;
1022 return irc::sockets::cidr_mask(client_sa, range);
1025 bool User::SetClientIP(const char* sip)
1027 this->cachedip = "";
1028 return irc::sockets::aptosa(sip, 0, client_sa);
1031 static std::string wide_newline("\r\n");
1033 void User::Write(const std::string& text)
1037 void User::Write(const char *text, ...)
1041 void LocalUser::Write(const std::string& text)
1043 if (!ServerInstance->SE->BoundsCheckFd(&eh))
1046 if (text.length() > MAXBUF - 2)
1048 // this should happen rarely or never. Crop the string at 512 and try again.
1049 std::string try_again = text.substr(0, MAXBUF - 2);
1054 ServerInstance->Logs->Log("USEROUTPUT", DEBUG,"C[%s] O %s", uuid.c_str(), text.c_str());
1056 eh.AddWriteBuf(text);
1057 eh.AddWriteBuf(wide_newline);
1059 ServerInstance->stats->statsSent += text.length() + 2;
1060 this->bytes_out += text.length() + 2;
1066 void LocalUser::Write(const char *text, ...)
1069 char textbuffer[MAXBUF];
1071 va_start(argsPtr, text);
1072 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1075 this->Write(std::string(textbuffer));
1078 void User::WriteServ(const std::string& text)
1080 this->Write(":%s %s",ServerInstance->Config->ServerName.c_str(),text.c_str());
1084 * Same as Write(), except `text' is prefixed with `:server.name '.
1086 void User::WriteServ(const char* text, ...)
1089 char textbuffer[MAXBUF];
1091 va_start(argsPtr, text);
1092 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1095 this->WriteServ(std::string(textbuffer));
1099 void User::WriteNumeric(unsigned int numeric, const char* text, ...)
1102 char textbuffer[MAXBUF];
1104 va_start(argsPtr, text);
1105 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1108 this->WriteNumeric(numeric, std::string(textbuffer));
1111 void User::WriteNumeric(unsigned int numeric, const std::string &text)
1113 char textbuffer[MAXBUF];
1114 ModResult MOD_RESULT;
1116 FIRST_MOD_RESULT(OnNumeric, MOD_RESULT, (this, numeric, text));
1118 if (MOD_RESULT == MOD_RES_DENY)
1121 snprintf(textbuffer,MAXBUF,":%s %03u %s",ServerInstance->Config->ServerName.c_str(), numeric, text.c_str());
1122 this->Write(std::string(textbuffer));
1125 void User::WriteFrom(User *user, const std::string &text)
1129 snprintf(tb,MAXBUF,":%s %s",user->GetFullHost().c_str(),text.c_str());
1131 this->Write(std::string(tb));
1135 /* write text from an originating user to originating user */
1137 void User::WriteFrom(User *user, const char* text, ...)
1140 char textbuffer[MAXBUF];
1142 va_start(argsPtr, text);
1143 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1146 this->WriteFrom(user, std::string(textbuffer));
1150 /* write text to an destination user from a source user (e.g. user privmsg) */
1152 void User::WriteTo(User *dest, const char *data, ...)
1154 char textbuffer[MAXBUF];
1157 va_start(argsPtr, data);
1158 vsnprintf(textbuffer, MAXBUF, data, argsPtr);
1161 this->WriteTo(dest, std::string(textbuffer));
1164 void User::WriteTo(User *dest, const std::string &data)
1166 dest->WriteFrom(this, data);
1169 void User::WriteCommon(const char* text, ...)
1171 char textbuffer[MAXBUF];
1174 if (this->registered != REG_ALL || quitting)
1177 int len = snprintf(textbuffer,MAXBUF,":%s ",this->GetFullHost().c_str());
1179 va_start(argsPtr, text);
1180 vsnprintf(textbuffer + len, MAXBUF - len, text, argsPtr);
1183 this->WriteCommonRaw(std::string(textbuffer), true);
1186 void User::WriteCommonExcept(const char* text, ...)
1188 char textbuffer[MAXBUF];
1191 if (this->registered != REG_ALL || quitting)
1194 int len = snprintf(textbuffer,MAXBUF,":%s ",this->GetFullHost().c_str());
1196 va_start(argsPtr, text);
1197 vsnprintf(textbuffer + len, MAXBUF - len, text, argsPtr);
1200 this->WriteCommonRaw(std::string(textbuffer), false);
1203 void User::WriteCommonRaw(const std::string &line, bool include_self)
1205 if (this->registered != REG_ALL || quitting)
1208 uniq_id_t uniq_id = ++already_sent;
1210 UserChanList include_c(chans);
1211 std::map<User*,bool> exceptions;
1213 exceptions[this] = include_self;
1215 FOREACH_MOD(I_OnBuildNeighborList,OnBuildNeighborList(this, include_c, exceptions));
1217 for (std::map<User*,bool>::iterator i = exceptions.begin(); i != exceptions.end(); ++i)
1219 LocalUser* u = IS_LOCAL(i->first);
1220 if (u && !u->quitting)
1222 already_sent[u->GetFd()] = uniq_id;
1227 for (UCListIter v = include_c.begin(); v != include_c.end(); ++v)
1230 const UserMembList* ulist = c->GetUsers();
1231 for (UserMembList::const_iterator i = ulist->begin(); i != ulist->end(); i++)
1233 LocalUser* u = IS_LOCAL(i->first);
1234 if (u && !u->quitting && already_sent[u->GetFd()] != uniq_id)
1236 already_sent[u->GetFd()] = uniq_id;
1243 void User::WriteCommonQuit(const std::string &normal_text, const std::string &oper_text)
1248 if (this->registered != REG_ALL)
1251 uniq_id_t uniq_id = ++already_sent;
1253 snprintf(tb1,MAXBUF,":%s QUIT :%s",this->GetFullHost().c_str(),normal_text.c_str());
1254 snprintf(tb2,MAXBUF,":%s QUIT :%s",this->GetFullHost().c_str(),oper_text.c_str());
1255 std::string out1 = tb1;
1256 std::string out2 = tb2;
1258 UserChanList include_c(chans);
1259 std::map<User*,bool> exceptions;
1261 FOREACH_MOD(I_OnBuildNeighborList,OnBuildNeighborList(this, include_c, exceptions));
1263 for (std::map<User*,bool>::iterator i = exceptions.begin(); i != exceptions.end(); ++i)
1265 LocalUser* u = IS_LOCAL(i->first);
1266 if (u && !u->quitting)
1268 already_sent[u->GetFd()] = uniq_id;
1270 u->Write(IS_OPER(u) ? out2 : out1);
1273 for (UCListIter v = include_c.begin(); v != include_c.end(); ++v)
1275 const UserMembList* ulist = (*v)->GetUsers();
1276 for (UserMembList::const_iterator i = ulist->begin(); i != ulist->end(); i++)
1278 LocalUser* u = IS_LOCAL(i->first);
1279 if (u && !u->quitting && (already_sent[u->GetFd()] != uniq_id))
1281 already_sent[u->GetFd()] = uniq_id;
1282 u->Write(IS_OPER(u) ? out2 : out1);
1288 void LocalUser::SendText(const std::string& line)
1293 void RemoteUser::SendText(const std::string& line)
1295 ServerInstance->PI->PushToClient(this, line);
1298 void FakeUser::SendText(const std::string& line)
1302 void User::SendText(const char *text, ...)
1307 va_start(argsPtr, text);
1308 vsnprintf(line, MAXBUF, text, argsPtr);
1311 SendText(std::string(line));
1314 void User::SendText(const std::string &LinePrefix, std::stringstream &TextStream)
1317 int start_pos = LinePrefix.length();
1318 int pos = start_pos;
1319 memcpy(line, LinePrefix.data(), pos);
1321 while (TextStream >> Word)
1323 int len = Word.length();
1324 if (pos + len + 12 > MAXBUF)
1327 SendText(std::string(line));
1331 memcpy(line + pos + 1, Word.data(), len);
1335 SendText(std::string(line));
1338 /* return 0 or 1 depending if users u and u2 share one or more common channels
1339 * (used by QUIT, NICK etc which arent channel specific notices)
1341 * The old algorithm in 1.0 for this was relatively inefficient, iterating over
1342 * the first users channels then the second users channels within the outer loop,
1343 * therefore it was a maximum of x*y iterations (upon returning 0 and checking
1344 * all possible iterations). However this new function instead checks against the
1345 * channel's userlist in the inner loop which is a std::map<User*,User*>
1346 * and saves us time as we already know what pointer value we are after.
1347 * Don't quote me on the maths as i am not a mathematician or computer scientist,
1348 * but i believe this algorithm is now x+(log y) maximum iterations instead.
1350 bool User::SharesChannelWith(User *other)
1352 if ((!other) || (this->registered != REG_ALL) || (other->registered != REG_ALL))
1356 for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
1358 /* Eliminate the inner loop (which used to be ~equal in size to the outer loop)
1359 * by replacing it with a map::find which *should* be more efficient
1361 if ((*i)->HasUser(other))
1367 bool User::ChangeName(const char* gecos)
1369 if (!this->fullname.compare(gecos))
1374 ModResult MOD_RESULT;
1375 FIRST_MOD_RESULT(OnChangeLocalUserGECOS, MOD_RESULT, (IS_LOCAL(this),gecos));
1376 if (MOD_RESULT == MOD_RES_DENY)
1378 FOREACH_MOD(I_OnChangeName,OnChangeName(this,gecos));
1380 this->fullname.assign(gecos, 0, ServerInstance->Config->Limits.MaxGecos);
1385 void User::DoHostCycle(const std::string &quitline)
1387 char buffer[MAXBUF];
1389 if (!ServerInstance->Config->CycleHosts)
1392 uniq_id_t silent_id = ++already_sent;
1393 uniq_id_t seen_id = ++already_sent;
1395 UserChanList include_c(chans);
1396 std::map<User*,bool> exceptions;
1398 FOREACH_MOD(I_OnBuildNeighborList,OnBuildNeighborList(this, include_c, exceptions));
1400 for (std::map<User*,bool>::iterator i = exceptions.begin(); i != exceptions.end(); ++i)
1402 LocalUser* u = IS_LOCAL(i->first);
1403 if (u && !u->quitting)
1407 already_sent[u->GetFd()] = seen_id;
1412 already_sent[u->GetFd()] = silent_id;
1416 for (UCListIter v = include_c.begin(); v != include_c.end(); ++v)
1419 snprintf(buffer, MAXBUF, ":%s JOIN %s", GetFullHost().c_str(), c->name.c_str());
1420 std::string joinline(buffer);
1421 Membership* memb = c->GetUser(this);
1422 std::string modeline = memb->modes;
1423 if (modeline.length() > 0)
1425 for(unsigned int i=0; i < memb->modes.length(); i++)
1426 modeline.append(" ").append(nick);
1427 snprintf(buffer, MAXBUF, ":%s MODE %s +%s", GetFullHost().c_str(), c->name.c_str(), modeline.c_str());
1431 const UserMembList *ulist = c->GetUsers();
1432 for (UserMembList::const_iterator i = ulist->begin(); i != ulist->end(); i++)
1434 LocalUser* u = IS_LOCAL(i->first);
1435 if (u == NULL || u == this)
1437 if (already_sent[u->GetFd()] == silent_id)
1440 if (already_sent[u->GetFd()] != seen_id)
1443 already_sent[u->GetFd()] = seen_id;
1446 if (modeline.length() > 0)
1452 bool User::ChangeDisplayedHost(const char* shost)
1459 ModResult MOD_RESULT;
1460 FIRST_MOD_RESULT(OnChangeLocalUserHost, MOD_RESULT, (IS_LOCAL(this),shost));
1461 if (MOD_RESULT == MOD_RES_DENY)
1465 FOREACH_MOD(I_OnChangeHost, OnChangeHost(this,shost));
1467 std::string quitstr = ":" + GetFullHost() + " QUIT :Changing host";
1469 /* Fix by Om: User::dhost is 65 long, this was truncating some long hosts */
1470 this->dhost.assign(shost, 0, 64);
1472 this->InvalidateCache();
1474 this->DoHostCycle(quitstr);
1477 this->WriteNumeric(RPL_YOURDISPLAYEDHOST, "%s %s :is now your displayed host",this->nick.c_str(),this->dhost.c_str());
1482 bool User::ChangeIdent(const char* newident)
1484 if (this->ident == newident)
1487 FOREACH_MOD(I_OnChangeIdent, OnChangeIdent(this,newident));
1489 std::string quitstr = ":" + GetFullHost() + " QUIT :Changing ident";
1491 this->ident.assign(newident, 0, ServerInstance->Config->Limits.IdentMax + 1);
1493 this->InvalidateCache();
1495 this->DoHostCycle(quitstr);
1500 void User::SendAll(const char* command, const char* text, ...)
1502 char textbuffer[MAXBUF];
1503 char formatbuffer[MAXBUF];
1506 va_start(argsPtr, text);
1507 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1510 snprintf(formatbuffer,MAXBUF,":%s %s $* :%s", this->GetFullHost().c_str(), command, textbuffer);
1511 std::string fmt = formatbuffer;
1513 for (std::vector<LocalUser*>::const_iterator i = ServerInstance->Users->local_users.begin(); i != ServerInstance->Users->local_users.end(); i++)
1520 std::string User::ChannelList(User* source, bool spy)
1524 for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
1527 /* If the target is the sender, neither +p nor +s is set, or
1528 * the channel contains the user, it is not a spy channel
1530 if (spy != (source == this || !(c->IsModeSet('p') || c->IsModeSet('s')) || c->HasUser(source)))
1531 list.append(c->GetPrefixChar(this)).append(c->name).append(" ");
1537 void User::SplitChanList(User* dest, const std::string &cl)
1540 std::ostringstream prefix;
1541 std::string::size_type start, pos, length;
1543 prefix << this->nick << " " << dest->nick << " :";
1544 line = prefix.str();
1545 int namelen = ServerInstance->Config->ServerName.length() + 6;
1547 for (start = 0; (pos = cl.find(' ', start)) != std::string::npos; start = pos+1)
1549 length = (pos == std::string::npos) ? cl.length() : pos;
1551 if (line.length() + namelen + length - start > 510)
1553 ServerInstance->SendWhoisLine(this, dest, 319, "%s", line.c_str());
1554 line = prefix.str();
1557 if(pos == std::string::npos)
1559 line.append(cl.substr(start, length - start));
1564 line.append(cl.substr(start, length - start + 1));
1570 ServerInstance->SendWhoisLine(this, dest, 319, "%s", line.c_str());
1575 * Sets a user's connection class.
1576 * If the class name is provided, it will be used. Otherwise, the class will be guessed using host/ip/ident/etc.
1577 * NOTE: If the <ALLOW> or <DENY> tag specifies an ip, and this user resolves,
1578 * then their ip will be taken as 'priority' anyway, so for example,
1579 * <connect allow="127.0.0.1"> will match joe!bloggs@localhost
1581 void LocalUser::SetClass(const std::string &explicit_name)
1583 ConnectClass *found = NULL;
1585 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Setting connect class for UID %s", this->uuid.c_str());
1587 if (!explicit_name.empty())
1589 for (ClassVector::iterator i = ServerInstance->Config->Classes.begin(); i != ServerInstance->Config->Classes.end(); i++)
1591 ConnectClass* c = *i;
1593 if (explicit_name == c->name)
1595 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Explicitly set to %s", explicit_name.c_str());
1602 for (ClassVector::iterator i = ServerInstance->Config->Classes.begin(); i != ServerInstance->Config->Classes.end(); i++)
1604 ConnectClass* c = *i;
1606 ModResult MOD_RESULT;
1607 FIRST_MOD_RESULT(OnSetConnectClass, MOD_RESULT, (this,c));
1608 if (MOD_RESULT == MOD_RES_DENY)
1610 if (MOD_RESULT == MOD_RES_ALLOW)
1612 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Class forced by module to %s", c->GetName().c_str());
1617 if (c->type == CC_NAMED)
1620 /* check if host matches.. */
1621 if (c->GetHost().length() && !InspIRCd::MatchCIDR(this->GetIPString(), c->GetHost(), NULL) &&
1622 !InspIRCd::MatchCIDR(this->host, c->GetHost(), NULL))
1624 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "No host match (for %s)", c->GetHost().c_str());
1629 * deny change if change will take class over the limit check it HERE, not after we found a matching class,
1630 * because we should attempt to find another class if this one doesn't match us. -- w00t
1632 if (c->limit && (c->GetReferenceCount() >= c->limit))
1634 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "OOPS: Connect class limit (%lu) hit, denying", c->limit);
1638 /* if it requires a port ... */
1639 int port = c->config->getInt("port");
1642 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Requires port (%d)", port);
1644 /* and our port doesn't match, fail. */
1645 if (this->GetServerPort() != port)
1649 /* we stop at the first class that meets ALL critera. */
1656 * Okay, assuming we found a class that matches.. switch us into that class, keeping refcounts up to date.
1664 /* looks up a users password for their connection class (<ALLOW>/<DENY> tags)
1665 * NOTE: If the <ALLOW> or <DENY> tag specifies an ip, and this user resolves,
1666 * then their ip will be taken as 'priority' anyway, so for example,
1667 * <connect allow="127.0.0.1"> will match joe!bloggs@localhost
1669 ConnectClass* LocalUser::GetClass()
1674 ConnectClass* User::GetClass()
1679 void User::PurgeEmptyChannels()
1681 // firstly decrement the count on each channel
1682 for (UCListIter f = this->chans.begin(); f != this->chans.end(); f++)
1691 const std::string& FakeUser::GetFullHost()
1693 if (!ServerInstance->Config->HideWhoisServer.empty())
1694 return ServerInstance->Config->HideWhoisServer;
1698 const std::string& FakeUser::GetFullRealHost()
1700 if (!ServerInstance->Config->HideWhoisServer.empty())
1701 return ServerInstance->Config->HideWhoisServer;
1705 ConnectClass::ConnectClass(ConfigTag* tag, char t, const std::string& mask)
1706 : config(tag), type(t), fakelag(true), name("unnamed"), registration_timeout(0), host(mask),
1707 pingtime(0), softsendqmax(0), hardsendqmax(0), recvqmax(0),
1708 penaltythreshold(0), commandrate(0), maxlocal(0), maxglobal(0), maxchans(0), limit(0)
1712 ConnectClass::ConnectClass(ConfigTag* tag, char t, const std::string& mask, const ConnectClass& parent)
1713 : config(tag), type(t), fakelag(parent.fakelag), name("unnamed"),
1714 registration_timeout(parent.registration_timeout), host(mask), pingtime(parent.pingtime),
1715 softsendqmax(parent.softsendqmax), hardsendqmax(parent.hardsendqmax), recvqmax(parent.recvqmax),
1716 penaltythreshold(parent.penaltythreshold), commandrate(parent.commandrate),
1717 maxlocal(parent.maxlocal), maxglobal(parent.maxglobal), maxchans(parent.maxchans),
1722 void ConnectClass::Update(const ConnectClass* src)
1725 registration_timeout = src->registration_timeout;
1727 pingtime = src->pingtime;
1728 softsendqmax = src->softsendqmax;
1729 hardsendqmax = src->hardsendqmax;
1730 recvqmax = src->recvqmax;
1731 penaltythreshold = src->penaltythreshold;
1732 maxlocal = src->maxlocal;
1733 maxglobal = src->maxglobal;