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();
180 for (std::string::iterator n = modeseq.begin(); n != modeseq.end(); ++n)
182 ModeHandler* mode = ServerInstance->Modes->FindMode(*n, MODETYPE_CHANNEL);
185 this->SetMode(*n, true);
186 if (mode->GetNumParams(true))
187 this->SetModeParam(*n, list.GetToken().c_str(), true);
193 * add a channel to a user, creating the record for it if needed and linking
194 * it to the user record
196 chanrec* chanrec::JoinUser(InspIRCd* Instance, userrec *user, const char* cn, bool override, const char* key, time_t TS)
201 bool new_channel = false;
204 strlcpy(cname,cn,CHANMAX);
208 chanrec* Ptr = Instance->FindChan(cname);
212 if ((!IS_LOCAL(user)) && (!TS))
213 Instance->Log(DEBUG,"*** BUG *** chanrec::JoinUser called for REMOTE user '%s' on channel '%s' but no TS given!", user->nick, cn);
217 if (IS_LOCAL(user) && override == false)
220 FOREACH_RESULT_I(Instance,I_OnUserPreJoin,OnUserPreJoin(user,NULL,cname,privs));
225 /* create a new one */
226 Ptr = new chanrec(Instance);
227 (*(Instance->chanlist))[cname] = Ptr;
229 strlcpy(Ptr->name, cname,CHANMAX);
231 /* As spotted by jilles, dont bother to set this on remote users */
233 Ptr->SetDefaultModes();
235 Ptr->created = TS ? TS : Instance->Time();
236 Ptr->age = Ptr->created;
244 /* Already on the channel */
245 if (Ptr->HasUser(user))
249 * remote users are allowed us to bypass channel modes
250 * and bans (used by servers)
252 if (IS_LOCAL(user) && override == false)
255 FOREACH_RESULT_I(Instance,I_OnUserPreJoin,OnUserPreJoin(user,Ptr,cname,privs));
260 else if (MOD_RESULT == 0)
265 FOREACH_RESULT_I(Instance,I_OnCheckKey,OnCheckKey(user, Ptr, key ? key : ""));
268 if ((!key) || strcmp(key,Ptr->key))
270 user->WriteServ("475 %s %s :Cannot join channel (Incorrect channel key)",user->nick, Ptr->name);
275 if (Ptr->modes[CM_INVITEONLY])
278 FOREACH_RESULT_I(Instance,I_OnCheckInvite,OnCheckInvite(user, Ptr));
281 if (user->IsInvited(Ptr->name))
283 /* user was invited to channel */
284 /* there may be an optional channel NOTICE here */
288 user->WriteServ("473 %s %s :Cannot join channel (Invite only)",user->nick, Ptr->name);
292 user->RemoveInvite(Ptr->name);
297 FOREACH_RESULT_I(Instance,I_OnCheckLimit,OnCheckLimit(user, Ptr));
300 if (Ptr->GetUserCounter() >= Ptr->limit)
302 user->WriteServ("471 %s %s :Cannot join channel (Channel is full)",user->nick, Ptr->name);
307 if (Ptr->bans.size())
309 if (Ptr->IsBanned(user))
311 user->WriteServ("474 %s %s :Cannot join channel (You're banned)",user->nick, Ptr->name);
319 /* NOTE: If the user is an oper here, we can extend their user->chans by up to
320 * OperMaxchans. For remote users which are not bound by the channel limits,
321 * we can extend infinitely. Otherwise, nope, youre restricted to MaxChans.
323 if (!IS_LOCAL(user) || override == true)
325 return chanrec::ForceChan(Instance, Ptr, user, privs);
327 else if (IS_OPER(user))
329 /* Oper allows extension up to the OperMaxchans value */
330 if (user->chans.size() < Instance->Config->OperMaxChans)
332 return chanrec::ForceChan(Instance, Ptr, user, privs);
335 else if (user->chans.size() < Instance->Config->MaxChans)
337 return chanrec::ForceChan(Instance, Ptr, user, privs);
341 user->WriteServ("405 %s %s :You are on too many channels",user->nick, cname);
345 /* Things went seriously pear shaped, so take this away. bwahaha. */
346 chan_hash::iterator n = Instance->chanlist->find(cname);
347 if (n != Instance->chanlist->end())
351 Instance->chanlist->erase(n);
358 chanrec* chanrec::ForceChan(InspIRCd* Instance, chanrec* Ptr, userrec* user, const std::string &privs)
360 userrec* dummyuser = new userrec(Instance);
361 std::string nick = user->nick;
364 dummyuser->SetFd(FD_MAGIC_NUMBER);
367 /* Just in case they have no permissions */
368 user->chans[Ptr] = 0;
370 for (std::string::const_iterator x = privs.begin(); x != privs.end(); x++)
372 const char status = *x;
373 ModeHandler* mh = Instance->Modes->FindPrefix(status);
376 Ptr->SetPrefix(user, status, mh->GetPrefixRank(), true);
377 /* Make sure that the mode handler knows this mode was now set */
378 mh->OnModeChange(dummyuser, dummyuser, Ptr, nick, true);
380 switch (mh->GetPrefix())
382 /* These logic ops are SAFE IN THIS CASE
383 * because if the entry doesnt exist,
384 * addressing operator[] creates it.
385 * If they do exist, it points to it.
386 * At all other times where we dont want
387 * to create an item if it doesnt exist, we
388 * must stick to ::find().
391 user->chans[Ptr] |= UCMODE_OP;
394 user->chans[Ptr] |= UCMODE_HOP;
397 user->chans[Ptr] |= UCMODE_VOICE;
405 FOREACH_MOD_I(Instance,I_OnUserJoin,OnUserJoin(user, Ptr, silent));
408 Ptr->WriteChannel(user,"JOIN :%s",Ptr->name);
410 /* Theyre not the first ones in here, make sure everyone else sees the modes we gave the user */
411 std::string ms = Instance->Modes->ModeString(user, Ptr);
412 if ((Ptr->GetUserCounter() > 1) && (ms.length()))
413 Ptr->WriteAllExceptSender(user, true, 0, "MODE %s +%s", Ptr->name, ms.c_str());
415 /* Major improvement by Brain - we dont need to be calculating all this pointlessly for remote users */
420 user->WriteServ("332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
421 user->WriteServ("333 %s %s %s %lu", user->nick, Ptr->name, Ptr->setby, (unsigned long)Ptr->topicset);
425 FOREACH_MOD_I(Instance,I_OnPostJoin,OnPostJoin(user, Ptr));
429 bool chanrec::IsBanned(userrec* user)
433 FOREACH_RESULT(I_OnCheckBan,OnCheckBan(user, this));
436 snprintf(mask, MAXBUF, "%s!%s@%s", user->nick, user->ident, user->GetIPString());
437 for (BanList::iterator i = this->bans.begin(); i != this->bans.end(); i++)
439 /* This allows CIDR ban matching
441 * Full masked host Full unmasked host IP with/without CIDR
443 if ((match(user->GetFullHost(),i->data)) || (match(user->GetFullRealHost(),i->data)) || (match(mask, i->data, true)))
453 * remove a channel from a users record, and return the number of users left.
454 * Therefore, if this function returns 0 the caller should delete the chanrec.
456 long chanrec::PartUser(userrec *user, const char* reason)
461 return this->GetUserCounter();
463 UCListIter i = user->chans.find(this);
464 if (i != user->chans.end())
466 FOREACH_MOD(I_OnUserPart,OnUserPart(user, this, reason ? reason : "", silent));
469 this->WriteChannel(user, "PART %s%s%s", this->name, reason ? " :" : "", reason ? reason : "");
471 user->chans.erase(i);
472 this->RemoveAllPrefixes(user);
475 if (!this->DelUser(user)) /* if there are no users left on the channel... */
477 chan_hash::iterator iter = ServerInstance->chanlist->find(this->name);
478 /* kill the record */
479 if (iter != ServerInstance->chanlist->end())
481 FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(this));
482 ServerInstance->chanlist->erase(iter);
487 return this->GetUserCounter();
490 long chanrec::ServerKickUser(userrec* user, const char* reason, bool triggerevents)
494 if (!user || !reason)
495 return this->GetUserCounter();
499 if (!this->HasUser(user))
502 return this->GetUserCounter();
508 FOREACH_MOD(I_OnUserKick,OnUserKick(NULL, user, this, reason, silent));
511 UCListIter i = user->chans.find(this);
512 if (i != user->chans.end())
515 this->WriteChannelWithServ(ServerInstance->Config->ServerName, "KICK %s %s :%s", this->name, user->nick, reason);
517 user->chans.erase(i);
518 this->RemoveAllPrefixes(user);
521 if (!this->DelUser(user))
523 chan_hash::iterator iter = ServerInstance->chanlist->find(this->name);
524 /* kill the record */
525 if (iter != ServerInstance->chanlist->end())
527 FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(this));
528 ServerInstance->chanlist->erase(iter);
533 return this->GetUserCounter();
536 long chanrec::KickUser(userrec *src, userrec *user, const char* reason)
540 if (!src || !user || !reason)
541 return this->GetUserCounter();
545 if (!this->HasUser(user))
547 src->WriteServ("441 %s %s %s :They are not on that channel",src->nick, user->nick, this->name);
548 return this->GetUserCounter();
550 if ((ServerInstance->ULine(user->server)) && (!ServerInstance->ULine(src->server)))
552 src->WriteServ("482 %s %s :Only a u-line may kick a u-line from a channel.",src->nick, this->name);
553 return this->GetUserCounter();
557 if (!ServerInstance->ULine(src->server))
560 FOREACH_RESULT(I_OnUserPreKick,OnUserPreKick(src,user,this,reason));
562 return this->GetUserCounter();
564 /* Set to -1 by OnUserPreKick if explicit allow was set */
565 if (MOD_RESULT != -1)
567 FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(src,user,this,AC_KICK));
568 if ((MOD_RESULT == ACR_DENY) && (!ServerInstance->ULine(src->server)))
569 return this->GetUserCounter();
571 if ((MOD_RESULT == ACR_DEFAULT) || (!ServerInstance->ULine(src->server)))
573 int them = this->GetStatus(src);
574 int us = this->GetStatus(user);
575 if ((them < STATUS_HOP) || (them < us))
577 src->WriteServ("482 %s %s :You must be a channel %soperator",src->nick, this->name, them == STATUS_HOP ? "" : "half-");
578 return this->GetUserCounter();
584 FOREACH_MOD(I_OnUserKick,OnUserKick(src, user, this, reason, silent));
586 UCListIter i = user->chans.find(this);
587 if (i != user->chans.end())
589 /* zap it from the channel list of the user */
591 this->WriteChannel(src, "KICK %s %s :%s", this->name, user->nick, reason);
593 user->chans.erase(i);
594 this->RemoveAllPrefixes(user);
597 if (!this->DelUser(user))
598 /* if there are no users left on the channel */
600 chan_hash::iterator iter = ServerInstance->chanlist->find(this->name);
602 /* kill the record */
603 if (iter != ServerInstance->chanlist->end())
605 FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(this));
606 ServerInstance->chanlist->erase(iter);
611 return this->GetUserCounter();
614 void chanrec::WriteChannel(userrec* user, char* text, ...)
616 char textbuffer[MAXBUF];
622 va_start(argsPtr, text);
623 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
626 this->WriteChannel(user, std::string(textbuffer));
629 void chanrec::WriteChannel(userrec* user, const std::string &text)
631 CUList *ulist = this->GetUsers();
637 snprintf(tb,MAXBUF,":%s %s",user->GetFullHost(),text.c_str());
638 std::string out = tb;
640 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
642 if (IS_LOCAL(i->first))
643 i->first->Write(out);
647 void chanrec::WriteChannelWithServ(const char* ServName, const char* text, ...)
649 char textbuffer[MAXBUF];
655 va_start(argsPtr, text);
656 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
659 this->WriteChannelWithServ(ServName, std::string(textbuffer));
662 void chanrec::WriteChannelWithServ(const char* ServName, const std::string &text)
664 CUList *ulist = this->GetUsers();
667 snprintf(tb,MAXBUF,":%s %s",ServName ? ServName : ServerInstance->Config->ServerName, text.c_str());
668 std::string out = tb;
670 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
672 if (IS_LOCAL(i->first))
673 i->first->Write(out);
677 /* write formatted text from a source user to all users on a channel except
678 * for the sender (for privmsg etc) */
679 void chanrec::WriteAllExceptSender(userrec* user, bool serversource, char status, char* text, ...)
681 char textbuffer[MAXBUF];
687 va_start(argsPtr, text);
688 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
691 this->WriteAllExceptSender(user, serversource, status, std::string(textbuffer));
694 void chanrec::WriteAllExcept(userrec* user, bool serversource, char status, CUList &except_list, char* text, ...)
696 char textbuffer[MAXBUF];
702 va_start(argsPtr, text);
703 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
706 this->WriteAllExcept(user, serversource, status, except_list, std::string(textbuffer));
709 void chanrec::WriteAllExcept(userrec* user, bool serversource, char status, CUList &except_list, const std::string &text)
717 ulist = this->GetOppedUsers();
720 ulist = this->GetHalfoppedUsers();
723 ulist = this->GetVoicedUsers();
726 ulist = this->GetUsers();
730 snprintf(tb,MAXBUF,":%s %s",user->GetFullHost(),text.c_str());
731 std::string out = tb;
733 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
735 if ((IS_LOCAL(i->first)) && (except_list.find(i->first) == except_list.end()))
738 i->first->WriteServ(text);
740 i->first->Write(out);
745 void chanrec::WriteAllExceptSender(userrec* user, bool serversource, char status, const std::string& text)
748 except_list[user] = user->nick;
749 this->WriteAllExcept(user, serversource, status, except_list, std::string(text));
753 * return a count of the users on a specific channel accounting for
754 * invisible users who won't increase the count. e.g. for /LIST
756 int chanrec::CountInvisible()
759 CUList *ulist= this->GetUsers();
760 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
762 if (!(i->first->IsModeSet('i')))
769 char* chanrec::ChanModes(bool showkey)
771 static char scratch[MAXBUF];
772 static char sparam[MAXBUF];
773 char* offset = scratch;
774 std::string extparam;
779 /* This was still iterating up to 190, chanrec::modes is only 64 elements -- Om */
780 for(int n = 0; n < 64; n++)
789 extparam = (showkey ? this->key : "<key>");
792 extparam = ConvToStr(this->limit);
800 /* We know these have no parameters */
803 extparam = this->GetModeParameter(n + 65);
808 charlcat(sparam,' ',MAXBUF);
809 strlcat(sparam,extparam.c_str(),MAXBUF);
814 /* Null terminate scratch */
816 strlcat(scratch,sparam,MAXBUF);
820 /* compile a userlist of a channel into a string, each nick seperated by
821 * spaces and op, voice etc status shown as @ and +, and send it to 'user'
823 void chanrec::UserList(userrec *user, CUList *ulist)
832 FOREACH_RESULT(I_OnUserList,OnUserList(user, this, ulist));
836 dlen = curlen = snprintf(list,MAXBUF,"353 %s = %s :", user->nick, this->name);
839 char* ptr = list + dlen;
842 ulist = this->GetUsers();
844 /* Improvement by Brain - this doesnt change in value, so why was it inside
847 bool has_user = this->HasUser(user);
849 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
851 if ((!has_user) && (i->first->modes[UM_INVISIBLE]))
854 * user is +i, and source not on the channel, does not show
860 if (i->first->Visibility && !i->first->Visibility->VisibleTo(user))
863 size_t ptrlen = snprintf(ptr, MAXBUF, "%s%s ", this->GetPrefixChar(i->first), i->second.c_str());
864 /* OnUserList can change this - reset it back to normal */
865 i->second = i->first->nick;
872 if (curlen > (480-NICKMAX))
874 /* list overflowed into multiple numerics */
875 user->WriteServ(std::string(list));
877 /* reset our lengths */
878 dlen = curlen = snprintf(list,MAXBUF,"353 %s = %s :", user->nick, this->name);
886 /* if whats left in the list isnt empty, send it */
889 user->WriteServ(std::string(list));
892 user->WriteServ("366 %s %s :End of /NAMES list.", user->nick, this->name);
895 long chanrec::GetMaxBans()
897 /* Return the cached value if there is one */
899 return this->maxbans;
901 /* If there isnt one, we have to do some O(n) hax to find it the first time. (ick) */
902 for (std::map<std::string,int>::iterator n = ServerInstance->Config->maxbans.begin(); n != ServerInstance->Config->maxbans.end(); n++)
904 if (match(this->name,n->first.c_str()))
906 this->maxbans = n->second;
911 /* Screw it, just return the default of 64 */
913 return this->maxbans;
916 void chanrec::ResetMaxBans()
921 /* returns the status character for a given user on a channel, e.g. @ for op,
922 * % for halfop etc. If the user has several modes set, the highest mode
923 * the user has must be returned.
925 const char* chanrec::GetPrefixChar(userrec *user)
927 static char pf[2] = {0, 0};
929 prefixlist::iterator n = prefixes.find(user);
930 if (n != prefixes.end())
932 if (n->second.size())
934 /* If the user has any prefixes, their highest prefix
935 * will always be at the head of the list, as the list is
936 * sorted in rank order highest first (see SetPrefix()
939 *pf = n->second.begin()->first;
948 const char* chanrec::GetAllPrefixChars(userrec* user)
950 static char prefix[MAXBUF];
954 prefixlist::iterator n = prefixes.find(user);
955 if (n != prefixes.end())
957 for (std::vector<prefixtype>::iterator x = n->second.begin(); x != n->second.end(); x++)
959 prefix[ctr++] = x->first;
968 unsigned int chanrec::GetPrefixValue(userrec* user)
970 prefixlist::iterator n = prefixes.find(user);
971 if (n != prefixes.end())
973 if (n->second.size())
974 return n->second.begin()->second;
979 int chanrec::GetStatusFlags(userrec *user)
981 UCListIter i = user->chans.find(this);
982 if (i != user->chans.end())
989 int chanrec::GetStatus(userrec *user)
991 if (ServerInstance->ULine(user->server))
994 UCListIter i = user->chans.find(this);
995 if (i != user->chans.end())
997 if ((i->second & UCMODE_OP) > 0)
1001 if ((i->second & UCMODE_HOP) > 0)
1005 if ((i->second & UCMODE_VOICE) > 0)
1007 return STATUS_VOICE;
1009 return STATUS_NORMAL;
1011 return STATUS_NORMAL;
1014 void chanrec::SetPrefix(userrec* user, char prefix, unsigned int prefix_value, bool adding)
1016 prefixlist::iterator n = prefixes.find(user);
1017 prefixtype pfx = std::make_pair(prefix,prefix_value);
1020 if (n != prefixes.end())
1022 if (std::find(n->second.begin(), n->second.end(), pfx) == n->second.end())
1024 n->second.push_back(pfx);
1025 /* We must keep prefixes in rank order, largest first.
1026 * This is for two reasons, firstly because x-chat *ass-u-me's* this
1027 * state, and secondly it turns out to be a benefit to us later.
1028 * See above in GetPrefix().
1030 std::sort(n->second.begin(), n->second.end(), ModeParser::PrefixComparison);
1037 prefixes.insert(std::make_pair<userrec*,pfxcontainer>(user, one));
1042 if (n != prefixes.end())
1044 pfxcontainer::iterator x = std::find(n->second.begin(), n->second.end(), pfx);
1045 if (x != n->second.end())
1051 void chanrec::RemoveAllPrefixes(userrec* user)
1053 prefixlist::iterator n = prefixes.find(user);
1054 if (n != prefixes.end())