1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd: (C) 2002-2007 InspIRCd Development Team
6 * See: http://www.inspircd.org/wiki/index.php/Credits
8 * This program is free but copyrighted software; see
9 * the file COPYING for details.
11 * ---------------------------------------------------
16 #include "configreader.h"
22 chanrec::chanrec(InspIRCd* Instance) : ServerInstance(Instance)
24 *name = *topic = *setby = *key = 0;
25 maxbans = created = topicset = limit = 0;
27 age = ServerInstance->Time(true);
30 void chanrec::SetMode(char mode,bool mode_on)
32 modes[mode-65] = mode_on;
34 this->SetModeParam(mode,"",false);
38 void chanrec::SetModeParam(char mode,const char* parameter,bool mode_on)
40 CustomModeList::iterator n = custom_mode_params.find(mode);
44 if (n == custom_mode_params.end())
45 custom_mode_params[mode] = strdup(parameter);
49 if (n != custom_mode_params.end())
52 custom_mode_params.erase(n);
57 bool chanrec::IsModeSet(char mode)
59 return modes[mode-65];
62 std::string chanrec::GetModeParameter(char mode)
69 return ConvToStr(this->limit);
71 CustomModeList::iterator n = custom_mode_params.find(mode);
72 if (n != custom_mode_params.end())
79 long chanrec::GetUserCounter()
81 return (this->internal_userlist.size());
84 void chanrec::AddUser(userrec* user)
86 internal_userlist[user] = user->nick;
89 unsigned long chanrec::DelUser(userrec* user)
91 CUListIter a = internal_userlist.find(user);
93 if (a != internal_userlist.end())
95 internal_userlist.erase(a);
96 /* And tidy any others... */
98 DelHalfoppedUser(user);
102 return internal_userlist.size();
105 bool chanrec::HasUser(userrec* user)
107 return (internal_userlist.find(user) != internal_userlist.end());
110 void chanrec::AddOppedUser(userrec* user)
112 internal_op_userlist[user] = user->nick;
115 void chanrec::DelOppedUser(userrec* user)
117 CUListIter a = internal_op_userlist.find(user);
118 if (a != internal_op_userlist.end())
120 internal_op_userlist.erase(a);
125 void chanrec::AddHalfoppedUser(userrec* user)
127 internal_halfop_userlist[user] = user->nick;
130 void chanrec::DelHalfoppedUser(userrec* user)
132 CUListIter a = internal_halfop_userlist.find(user);
134 if (a != internal_halfop_userlist.end())
136 internal_halfop_userlist.erase(a);
140 void chanrec::AddVoicedUser(userrec* user)
142 internal_voice_userlist[user] = user->nick;
145 void chanrec::DelVoicedUser(userrec* user)
147 CUListIter a = internal_voice_userlist.find(user);
149 if (a != internal_voice_userlist.end())
151 internal_voice_userlist.erase(a);
155 CUList* chanrec::GetUsers()
157 return &internal_userlist;
160 CUList* chanrec::GetOppedUsers()
162 return &internal_op_userlist;
165 CUList* chanrec::GetHalfoppedUsers()
167 return &internal_halfop_userlist;
170 CUList* chanrec::GetVoicedUsers()
172 return &internal_voice_userlist;
175 void chanrec::SetDefaultModes()
177 irc::spacesepstream list(ServerInstance->Config->DefaultModes);
178 std::string modeseq = list.GetToken();
179 std::string parameter;
180 userrec* dummyuser = new userrec(ServerInstance);
181 dummyuser->SetFd(FD_MAGIC_NUMBER);
183 for (std::string::iterator n = modeseq.begin(); n != modeseq.end(); ++n)
185 ModeHandler* mode = ServerInstance->Modes->FindMode(*n, MODETYPE_CHANNEL);
188 if (mode->GetNumParams(true))
189 parameter = list.GetToken().c_str();
193 mode->OnModeChange(dummyuser, dummyuser, this, parameter, true);
201 * add a channel to a user, creating the record for it if needed and linking
202 * it to the user record
204 chanrec* chanrec::JoinUser(InspIRCd* Instance, userrec *user, const char* cn, bool override, const char* key, time_t TS)
209 bool new_channel = false;
212 strlcpy(cname,cn,CHANMAX);
216 chanrec* Ptr = Instance->FindChan(cname);
221 * Fix: desync bug was here, don't set @ on remote users - spanningtree handles their permissions. bug #358. -- w00t
226 Instance->Log(DEBUG,"*** BUG *** chanrec::JoinUser called for REMOTE user '%s' on channel '%s' but no TS given!", user->nick, cn);
233 if (IS_LOCAL(user) && override == false)
236 FOREACH_RESULT_I(Instance,I_OnUserPreJoin,OnUserPreJoin(user,NULL,cname,privs));
241 /* create a new one */
242 Ptr = new chanrec(Instance);
243 (*(Instance->chanlist))[cname] = Ptr;
245 strlcpy(Ptr->name, cname,CHANMAX);
247 /* As spotted by jilles, dont bother to set this on remote users */
249 Ptr->SetDefaultModes();
251 Ptr->created = TS ? TS : Instance->Time();
252 Ptr->age = Ptr->created;
260 /* Already on the channel */
261 if (Ptr->HasUser(user))
265 * remote users are allowed us to bypass channel modes
266 * and bans (used by servers)
268 if (IS_LOCAL(user) && override == false)
271 FOREACH_RESULT_I(Instance,I_OnUserPreJoin,OnUserPreJoin(user,Ptr,cname,privs));
276 else if (MOD_RESULT == 0)
281 FOREACH_RESULT_I(Instance,I_OnCheckKey,OnCheckKey(user, Ptr, key ? key : ""));
284 if ((!key) || strcmp(key,Ptr->key))
286 user->WriteServ("475 %s %s :Cannot join channel (Incorrect channel key)",user->nick, Ptr->name);
291 if (Ptr->IsModeSet('i'))
294 FOREACH_RESULT_I(Instance,I_OnCheckInvite,OnCheckInvite(user, Ptr));
297 if (!user->IsInvited(Ptr->name))
299 user->WriteServ("473 %s %s :Cannot join channel (Invite only)",user->nick, Ptr->name);
303 user->RemoveInvite(Ptr->name);
308 FOREACH_RESULT_I(Instance,I_OnCheckLimit,OnCheckLimit(user, Ptr));
311 if (Ptr->GetUserCounter() >= Ptr->limit)
313 user->WriteServ("471 %s %s :Cannot join channel (Channel is full)",user->nick, Ptr->name);
318 if (Ptr->bans.size())
320 if (Ptr->IsBanned(user))
322 user->WriteServ("474 %s %s :Cannot join channel (You're banned)",user->nick, Ptr->name);
330 /* NOTE: If the user is an oper here, we can extend their user->chans by up to
331 * OperMaxchans. For remote users which are not bound by the channel limits,
332 * we can extend infinitely. Otherwise, nope, youre restricted to MaxChans.
338 * We place no restrictions on remote users, users that are override-joining, or users that are
339 * currently in under MaxChans channels. For all others, they won't get in here. -- w00t
341 if (!IS_LOCAL(user) || override == true || user->chans.size() < Instance->Config->MaxChans)
343 return chanrec::ForceChan(Instance, Ptr, user, privs);
347 * If the above fails, and the user is an oper -- we let them in if they are under OperMaxChans.
348 * Otherwise, they're stuck, and need to override to get in, etc. -- w00t
352 if (user->chans.size() < Instance->Config->OperMaxChans)
354 return chanrec::ForceChan(Instance, Ptr, user, privs);
358 user->WriteServ("405 %s %s :You are on too many channels",user->nick, cname);
362 /* Things went seriously pear shaped, so take this away. bwahaha. */
363 chan_hash::iterator n = Instance->chanlist->find(cname);
364 if (n != Instance->chanlist->end())
368 Instance->chanlist->erase(n);
375 chanrec* chanrec::ForceChan(InspIRCd* Instance, chanrec* Ptr, userrec* user, const std::string &privs)
377 userrec* dummyuser = new userrec(Instance);
378 std::string nick = user->nick;
381 dummyuser->SetFd(FD_MAGIC_NUMBER);
384 /* Just in case they have no permissions */
385 user->chans[Ptr] = 0;
387 for (std::string::const_iterator x = privs.begin(); x != privs.end(); x++)
389 const char status = *x;
390 ModeHandler* mh = Instance->Modes->FindPrefix(status);
393 Ptr->SetPrefix(user, status, mh->GetPrefixRank(), true);
394 /* Make sure that the mode handler knows this mode was now set */
395 mh->OnModeChange(dummyuser, dummyuser, Ptr, nick, true);
397 switch (mh->GetPrefix())
399 /* These logic ops are SAFE IN THIS CASE
400 * because if the entry doesnt exist,
401 * addressing operator[] creates it.
402 * If they do exist, it points to it.
403 * At all other times where we dont want
404 * to create an item if it doesnt exist, we
405 * must stick to ::find().
408 user->chans[Ptr] |= UCMODE_OP;
411 user->chans[Ptr] |= UCMODE_HOP;
414 user->chans[Ptr] |= UCMODE_VOICE;
422 FOREACH_MOD_I(Instance,I_OnUserJoin,OnUserJoin(user, Ptr, silent));
425 Ptr->WriteChannel(user,"JOIN :%s",Ptr->name);
427 /* Theyre not the first ones in here, make sure everyone else sees the modes we gave the user */
428 std::string ms = Instance->Modes->ModeString(user, Ptr);
429 if ((Ptr->GetUserCounter() > 1) && (ms.length()))
430 Ptr->WriteAllExceptSender(user, true, 0, "MODE %s +%s", Ptr->name, ms.c_str());
432 /* Major improvement by Brain - we dont need to be calculating all this pointlessly for remote users */
437 user->WriteServ("332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
438 user->WriteServ("333 %s %s %s %lu", user->nick, Ptr->name, Ptr->setby, (unsigned long)Ptr->topicset);
442 FOREACH_MOD_I(Instance,I_OnPostJoin,OnPostJoin(user, Ptr));
446 bool chanrec::IsBanned(userrec* user)
450 FOREACH_RESULT(I_OnCheckBan,OnCheckBan(user, this));
453 snprintf(mask, MAXBUF, "%s!%s@%s", user->nick, user->ident, user->GetIPString());
454 for (BanList::iterator i = this->bans.begin(); i != this->bans.end(); i++)
456 /* This allows CIDR ban matching
458 * Full masked host Full unmasked host IP with/without CIDR
460 if ((match(user->GetFullHost(),i->data)) || (match(user->GetFullRealHost(),i->data)) || (match(mask, i->data, true)))
470 * remove a channel from a users record, and return the number of users left.
471 * Therefore, if this function returns 0 the caller should delete the chanrec.
473 long chanrec::PartUser(userrec *user, const char* reason)
478 return this->GetUserCounter();
480 UCListIter i = user->chans.find(this);
481 if (i != user->chans.end())
483 FOREACH_MOD(I_OnUserPart,OnUserPart(user, this, reason ? reason : "", silent));
486 this->WriteChannel(user, "PART %s%s%s", this->name, reason ? " :" : "", reason ? reason : "");
488 user->chans.erase(i);
489 this->RemoveAllPrefixes(user);
492 if (!this->DelUser(user)) /* if there are no users left on the channel... */
494 chan_hash::iterator iter = ServerInstance->chanlist->find(this->name);
495 /* kill the record */
496 if (iter != ServerInstance->chanlist->end())
498 FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(this));
499 ServerInstance->chanlist->erase(iter);
504 return this->GetUserCounter();
507 long chanrec::ServerKickUser(userrec* user, const char* reason, bool triggerevents)
511 if (!user || !reason)
512 return this->GetUserCounter();
516 if (!this->HasUser(user))
519 return this->GetUserCounter();
525 FOREACH_MOD(I_OnUserKick,OnUserKick(NULL, user, this, reason, silent));
528 UCListIter i = user->chans.find(this);
529 if (i != user->chans.end())
532 this->WriteChannelWithServ(ServerInstance->Config->ServerName, "KICK %s %s :%s", this->name, user->nick, reason);
534 user->chans.erase(i);
535 this->RemoveAllPrefixes(user);
538 if (!this->DelUser(user))
540 chan_hash::iterator iter = ServerInstance->chanlist->find(this->name);
541 /* kill the record */
542 if (iter != ServerInstance->chanlist->end())
544 FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(this));
545 ServerInstance->chanlist->erase(iter);
550 return this->GetUserCounter();
553 long chanrec::KickUser(userrec *src, userrec *user, const char* reason)
557 if (!src || !user || !reason)
558 return this->GetUserCounter();
562 if (!this->HasUser(user))
564 src->WriteServ("441 %s %s %s :They are not on that channel",src->nick, user->nick, this->name);
565 return this->GetUserCounter();
567 if ((ServerInstance->ULine(user->server)) && (!ServerInstance->ULine(src->server)))
569 src->WriteServ("482 %s %s :Only a u-line may kick a u-line from a channel.",src->nick, this->name);
570 return this->GetUserCounter();
574 if (!ServerInstance->ULine(src->server))
577 FOREACH_RESULT(I_OnUserPreKick,OnUserPreKick(src,user,this,reason));
579 return this->GetUserCounter();
581 /* Set to -1 by OnUserPreKick if explicit allow was set */
582 if (MOD_RESULT != -1)
584 FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(src,user,this,AC_KICK));
585 if ((MOD_RESULT == ACR_DENY) && (!ServerInstance->ULine(src->server)))
586 return this->GetUserCounter();
588 if ((MOD_RESULT == ACR_DEFAULT) || (!ServerInstance->ULine(src->server)))
590 int them = this->GetStatus(src);
591 int us = this->GetStatus(user);
592 if ((them < STATUS_HOP) || (them < us))
594 src->WriteServ("482 %s %s :You must be a channel %soperator",src->nick, this->name, them == STATUS_HOP ? "" : "half-");
595 return this->GetUserCounter();
601 FOREACH_MOD(I_OnUserKick,OnUserKick(src, user, this, reason, silent));
603 UCListIter i = user->chans.find(this);
604 if (i != user->chans.end())
606 /* zap it from the channel list of the user */
608 this->WriteChannel(src, "KICK %s %s :%s", this->name, user->nick, reason);
610 user->chans.erase(i);
611 this->RemoveAllPrefixes(user);
614 if (!this->DelUser(user))
615 /* if there are no users left on the channel */
617 chan_hash::iterator iter = ServerInstance->chanlist->find(this->name);
619 /* kill the record */
620 if (iter != ServerInstance->chanlist->end())
622 FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(this));
623 ServerInstance->chanlist->erase(iter);
628 return this->GetUserCounter();
631 void chanrec::WriteChannel(userrec* user, char* text, ...)
633 char textbuffer[MAXBUF];
639 va_start(argsPtr, text);
640 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
643 this->WriteChannel(user, std::string(textbuffer));
646 void chanrec::WriteChannel(userrec* user, const std::string &text)
648 CUList *ulist = this->GetUsers();
654 snprintf(tb,MAXBUF,":%s %s",user->GetFullHost(),text.c_str());
655 std::string out = tb;
657 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
659 if (IS_LOCAL(i->first))
660 i->first->Write(out);
664 void chanrec::WriteChannelWithServ(const char* ServName, const char* text, ...)
666 char textbuffer[MAXBUF];
672 va_start(argsPtr, text);
673 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
676 this->WriteChannelWithServ(ServName, std::string(textbuffer));
679 void chanrec::WriteChannelWithServ(const char* ServName, const std::string &text)
681 CUList *ulist = this->GetUsers();
684 snprintf(tb,MAXBUF,":%s %s",ServName ? ServName : ServerInstance->Config->ServerName, text.c_str());
685 std::string out = tb;
687 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
689 if (IS_LOCAL(i->first))
690 i->first->Write(out);
694 /* write formatted text from a source user to all users on a channel except
695 * for the sender (for privmsg etc) */
696 void chanrec::WriteAllExceptSender(userrec* user, bool serversource, char status, char* text, ...)
698 char textbuffer[MAXBUF];
704 va_start(argsPtr, text);
705 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
708 this->WriteAllExceptSender(user, serversource, status, std::string(textbuffer));
711 void chanrec::WriteAllExcept(userrec* user, bool serversource, char status, CUList &except_list, char* text, ...)
713 char textbuffer[MAXBUF];
719 va_start(argsPtr, text);
720 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
723 this->WriteAllExcept(user, serversource, status, except_list, std::string(textbuffer));
726 void chanrec::WriteAllExcept(userrec* user, bool serversource, char status, CUList &except_list, const std::string &text)
734 ulist = this->GetOppedUsers();
737 ulist = this->GetHalfoppedUsers();
740 ulist = this->GetVoicedUsers();
743 ulist = this->GetUsers();
747 snprintf(tb,MAXBUF,":%s %s",user->GetFullHost(),text.c_str());
748 std::string out = tb;
750 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
752 if ((IS_LOCAL(i->first)) && (except_list.find(i->first) == except_list.end()))
755 i->first->WriteServ(text);
757 i->first->Write(out);
762 void chanrec::WriteAllExceptSender(userrec* user, bool serversource, char status, const std::string& text)
765 except_list[user] = user->nick;
766 this->WriteAllExcept(user, serversource, status, except_list, std::string(text));
770 * return a count of the users on a specific channel accounting for
771 * invisible users who won't increase the count. e.g. for /LIST
773 int chanrec::CountInvisible()
776 CUList *ulist= this->GetUsers();
777 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
779 if (!(i->first->IsModeSet('i')))
786 char* chanrec::ChanModes(bool showkey)
788 static char scratch[MAXBUF];
789 static char sparam[MAXBUF];
790 char* offset = scratch;
791 std::string extparam;
796 /* This was still iterating up to 190, chanrec::modes is only 64 elements -- Om */
797 for(int n = 0; n < 64; n++)
806 extparam = (showkey ? this->key : "<key>");
809 extparam = ConvToStr(this->limit);
817 /* We know these have no parameters */
820 extparam = this->GetModeParameter(n + 65);
823 if (!extparam.empty())
825 charlcat(sparam,' ',MAXBUF);
826 strlcat(sparam,extparam.c_str(),MAXBUF);
831 /* Null terminate scratch */
833 strlcat(scratch,sparam,MAXBUF);
837 /* compile a userlist of a channel into a string, each nick seperated by
838 * spaces and op, voice etc status shown as @ and +, and send it to 'user'
840 void chanrec::UserList(userrec *user, CUList *ulist)
849 FOREACH_RESULT(I_OnUserList,OnUserList(user, this, ulist));
853 dlen = curlen = snprintf(list,MAXBUF,"353 %s = %s :", user->nick, this->name);
856 char* ptr = list + dlen;
859 ulist = this->GetUsers();
861 /* Improvement by Brain - this doesnt change in value, so why was it inside
864 bool has_user = this->HasUser(user);
866 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
868 if ((!has_user) && (i->first->IsModeSet('i')))
871 * user is +i, and source not on the channel, does not show
877 if (i->first->Visibility && !i->first->Visibility->VisibleTo(user))
880 size_t ptrlen = snprintf(ptr, MAXBUF, "%s%s ", this->GetPrefixChar(i->first), i->second.c_str());
881 /* OnUserList can change this - reset it back to normal */
882 i->second = i->first->nick;
889 if (curlen > (480-NICKMAX))
891 /* list overflowed into multiple numerics */
892 user->WriteServ(std::string(list));
894 /* reset our lengths */
895 dlen = curlen = snprintf(list,MAXBUF,"353 %s = %s :", user->nick, this->name);
903 /* if whats left in the list isnt empty, send it */
906 user->WriteServ(std::string(list));
909 user->WriteServ("366 %s %s :End of /NAMES list.", user->nick, this->name);
912 long chanrec::GetMaxBans()
914 /* Return the cached value if there is one */
916 return this->maxbans;
918 /* If there isnt one, we have to do some O(n) hax to find it the first time. (ick) */
919 for (std::map<std::string,int>::iterator n = ServerInstance->Config->maxbans.begin(); n != ServerInstance->Config->maxbans.end(); n++)
921 if (match(this->name,n->first.c_str()))
923 this->maxbans = n->second;
928 /* Screw it, just return the default of 64 */
930 return this->maxbans;
933 void chanrec::ResetMaxBans()
938 /* returns the status character for a given user on a channel, e.g. @ for op,
939 * % for halfop etc. If the user has several modes set, the highest mode
940 * the user has must be returned.
942 const char* chanrec::GetPrefixChar(userrec *user)
944 static char pf[2] = {0, 0};
946 prefixlist::iterator n = prefixes.find(user);
947 if (n != prefixes.end())
949 if (n->second.size())
951 /* If the user has any prefixes, their highest prefix
952 * will always be at the head of the list, as the list is
953 * sorted in rank order highest first (see SetPrefix()
956 *pf = n->second.begin()->first;
965 const char* chanrec::GetAllPrefixChars(userrec* user)
967 static char prefix[MAXBUF];
971 prefixlist::iterator n = prefixes.find(user);
972 if (n != prefixes.end())
974 for (std::vector<prefixtype>::iterator x = n->second.begin(); x != n->second.end(); x++)
976 prefix[ctr++] = x->first;
985 unsigned int chanrec::GetPrefixValue(userrec* user)
987 prefixlist::iterator n = prefixes.find(user);
988 if (n != prefixes.end())
990 if (n->second.size())
991 return n->second.begin()->second;
996 int chanrec::GetStatusFlags(userrec *user)
998 UCListIter i = user->chans.find(this);
999 if (i != user->chans.end())
1006 int chanrec::GetStatus(userrec *user)
1008 if (ServerInstance->ULine(user->server))
1011 UCListIter i = user->chans.find(this);
1012 if (i != user->chans.end())
1014 if ((i->second & UCMODE_OP) > 0)
1018 if ((i->second & UCMODE_HOP) > 0)
1022 if ((i->second & UCMODE_VOICE) > 0)
1024 return STATUS_VOICE;
1026 return STATUS_NORMAL;
1028 return STATUS_NORMAL;
1031 void chanrec::SetPrefix(userrec* user, char prefix, unsigned int prefix_value, bool adding)
1033 prefixlist::iterator n = prefixes.find(user);
1034 prefixtype pfx = std::make_pair(prefix,prefix_value);
1037 if (n != prefixes.end())
1039 if (std::find(n->second.begin(), n->second.end(), pfx) == n->second.end())
1041 n->second.push_back(pfx);
1042 /* We must keep prefixes in rank order, largest first.
1043 * This is for two reasons, firstly because x-chat *ass-u-me's* this
1044 * state, and secondly it turns out to be a benefit to us later.
1045 * See above in GetPrefix().
1047 std::sort(n->second.begin(), n->second.end(), ModeParser::PrefixComparison);
1054 prefixes.insert(std::make_pair<userrec*,pfxcontainer>(user, one));
1059 if (n != prefixes.end())
1061 pfxcontainer::iterator x = std::find(n->second.begin(), n->second.end(), pfx);
1062 if (x != n->second.end())
1068 void chanrec::RemoveAllPrefixes(userrec* user)
1070 prefixlist::iterator n = prefixes.find(user);
1071 if (n != prefixes.end())