2 * InspIRCd -- Internet Relay Chat Daemon
4 * Copyright (C) 2012 Shawn Smith <shawn@inspircd.org>
5 * Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
6 * Copyright (C) 2007, 2009 Dennis Friis <peavey@inspircd.org>
7 * Copyright (C) 2006-2008 Robin Burchell <robin+git@viroteck.net>
8 * Copyright (C) 2008 Thomas Stagner <aquanight@inspircd.org>
9 * Copyright (C) 2004-2008 Craig Edwards <craigedwards@brainbox.cc>
10 * Copyright (C) 2006 Oliver Lupton <oliverlupton@gmail.com>
12 * This file is part of InspIRCd. InspIRCd is free software: you can
13 * redistribute it and/or modify it under the terms of the GNU General Public
14 * License as published by the Free Software Foundation, version 2.
16 * This program is distributed in the hope that it will be useful, but WITHOUT
17 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
18 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
21 * You should have received a copy of the GNU General Public License
22 * along with this program. If not, see <http://www.gnu.org/licenses/>.
28 ModeHandler::ModeHandler(Module* Creator, const std::string& Name, char modeletter, ParamSpec Params, ModeType type, Class mclass)
29 : ServiceProvider(Creator, Name, SERVICE_MODE)
30 , modeid(ModeParser::MODEID_MAX)
31 , parameters_taken(Params)
37 , ranktoset(HALFOP_VALUE)
38 , ranktounset(HALFOP_VALUE)
42 CullResult ModeHandler::cull()
45 ServerInstance->Modes->DelMode(this);
46 return classbase::cull();
49 ModeHandler::~ModeHandler()
53 bool ModeHandler::NeedsParam(bool adding) const
55 switch (parameters_taken)
67 std::string ModeHandler::GetUserParameter(const User* user) const
72 ModResult ModeHandler::AccessCheck(User*, Channel*, std::string &, bool)
74 return MOD_RES_PASSTHRU;
77 ModeAction ModeHandler::OnModeChange(User*, User*, Channel*, std::string&, bool)
79 return MODEACTION_DENY;
82 void ModeHandler::DisplayList(User*, Channel*)
86 void ModeHandler::DisplayEmptyList(User*, Channel*)
90 void ModeHandler::OnParameterMissing(User* user, User* dest, Channel* channel)
94 bool ModeHandler::ResolveModeConflict(std::string& theirs, const std::string& ours, Channel*)
96 return (theirs < ours);
99 void ModeHandler::RegisterService()
101 ServerInstance->Modes.AddMode(this);
102 ServerInstance->Modules.AddReferent((GetModeType() == MODETYPE_CHANNEL ? "mode/" : "umode/") + name, this);
105 ModeAction SimpleUserModeHandler::OnModeChange(User* source, User* dest, Channel* channel, std::string ¶meter, bool adding)
107 /* We're either trying to add a mode we already have or
108 remove a mode we don't have, deny. */
109 if (dest->IsModeSet(this) == adding)
110 return MODEACTION_DENY;
112 /* adding will be either true or false, depending on if we
113 are adding or removing the mode, since we already checked
114 to make sure we aren't adding a mode we have or that we
115 aren't removing a mode we don't have, we don't have to do any
116 other checks here to see if it's true or false, just add or
118 dest->SetMode(this, adding);
120 return MODEACTION_ALLOW;
124 ModeAction SimpleChannelModeHandler::OnModeChange(User* source, User* dest, Channel* channel, std::string ¶meter, bool adding)
126 /* We're either trying to add a mode we already have or
127 remove a mode we don't have, deny. */
128 if (channel->IsModeSet(this) == adding)
129 return MODEACTION_DENY;
131 /* adding will be either true or false, depending on if we
132 are adding or removing the mode, since we already checked
133 to make sure we aren't adding a mode we have or that we
134 aren't removing a mode we don't have, we don't have to do any
135 other checks here to see if it's true or false, just add or
137 channel->SetMode(this, adding);
139 return MODEACTION_ALLOW;
142 ModeWatcher::ModeWatcher(Module* Creator, const std::string& modename, ModeType type)
143 : mode(modename), m_type(type), creator(Creator)
145 ServerInstance->Modes->AddModeWatcher(this);
148 ModeWatcher::~ModeWatcher()
150 ServerInstance->Modes->DelModeWatcher(this);
153 bool ModeWatcher::BeforeMode(User*, User*, Channel*, std::string&, bool)
158 void ModeWatcher::AfterMode(User*, User*, Channel*, const std::string&, bool)
162 PrefixMode::PrefixMode(Module* Creator, const std::string& Name, char ModeLetter, unsigned int Rank, char PrefixChar)
163 : ModeHandler(Creator, Name, ModeLetter, PARAM_ALWAYS, MODETYPE_CHANNEL, MC_PREFIX)
171 ModResult PrefixMode::AccessCheck(User* src, Channel*, std::string& value, bool adding)
173 if (!adding && src->nick == value && selfremove)
174 return MOD_RES_ALLOW;
175 return MOD_RES_PASSTHRU;
178 ModeAction PrefixMode::OnModeChange(User* source, User*, Channel* chan, std::string& parameter, bool adding)
181 if (IS_LOCAL(source))
182 target = ServerInstance->FindNickOnly(parameter);
184 target = ServerInstance->FindNick(parameter);
188 source->WriteNumeric(Numerics::NoSuchNick(parameter));
189 return MODEACTION_DENY;
192 Membership* memb = chan->GetUser(target);
194 return MODEACTION_DENY;
196 parameter = target->nick;
197 return (memb->SetPrefix(this, adding) ? MODEACTION_ALLOW : MODEACTION_DENY);
200 void PrefixMode::Update(unsigned int rank, unsigned int setrank, unsigned int unsetrank, bool selfrm)
204 ranktounset = unsetrank;
208 ModeAction ParamModeBase::OnModeChange(User* source, User*, Channel* chan, std::string& parameter, bool adding)
212 if (chan->GetModeParameter(this) == parameter)
213 return MODEACTION_DENY;
215 if (OnSet(source, chan, parameter) != MODEACTION_ALLOW)
216 return MODEACTION_DENY;
218 chan->SetMode(this, true);
220 // Handler might have changed the parameter internally
222 this->GetParameter(chan, parameter);
226 if (!chan->IsModeSet(this))
227 return MODEACTION_DENY;
228 this->OnUnsetInternal(source, chan);
229 chan->SetMode(this, false);
231 return MODEACTION_ALLOW;
234 ModeAction ModeParser::TryMode(User* user, User* targetuser, Channel* chan, Modes::Change& mcitem, bool SkipACL)
236 ModeType type = chan ? MODETYPE_CHANNEL : MODETYPE_USER;
238 ModeHandler* mh = mcitem.mh;
239 bool adding = mcitem.adding;
240 const bool needs_param = mh->NeedsParam(adding);
242 std::string& parameter = mcitem.param;
243 // crop mode parameter size to 250 characters
244 if (parameter.length() > 250 && adding)
245 parameter.erase(250);
247 ModResult MOD_RESULT;
248 FIRST_MOD_RESULT(OnRawMode, MOD_RESULT, (user, chan, mh, parameter, adding));
250 if (IS_LOCAL(user) && (MOD_RESULT == MOD_RES_DENY))
251 return MODEACTION_DENY;
253 const char modechar = mh->GetModeChar();
255 if (chan && !SkipACL && (MOD_RESULT != MOD_RES_ALLOW))
257 MOD_RESULT = mh->AccessCheck(user, chan, parameter, adding);
259 if (MOD_RESULT == MOD_RES_DENY)
260 return MODEACTION_DENY;
261 if (MOD_RESULT == MOD_RES_PASSTHRU)
263 unsigned int neededrank = mh->GetLevelRequired(adding);
264 /* Compare our rank on the channel against the rank of the required prefix,
265 * allow if >= ours. Because mIRC and xchat throw a tizz if the modes shown
266 * in NAMES(X) are not in rank order, we know the most powerful mode is listed
267 * first, so we don't need to iterate, we just look up the first instead.
269 unsigned int ourrank = chan->GetPrefixValue(user);
270 if (ourrank < neededrank)
272 const PrefixMode* neededmh = NULL;
273 const PrefixModeList& prefixmodes = GetPrefixModes();
274 for (PrefixModeList::const_iterator i = prefixmodes.begin(); i != prefixmodes.end(); ++i)
276 const PrefixMode* const privmh = *i;
277 if (privmh->GetPrefixRank() >= neededrank)
279 // this mode is sufficient to allow this action
280 if (!neededmh || privmh->GetPrefixRank() < neededmh->GetPrefixRank())
285 user->WriteNumeric(ERR_CHANOPRIVSNEEDED, chan->name, InspIRCd::Format("You must have channel %s access or above to %sset channel mode %c",
286 neededmh->name.c_str(), adding ? "" : "un", modechar));
288 user->WriteNumeric(ERR_CHANOPRIVSNEEDED, chan->name, InspIRCd::Format("You cannot %sset channel mode %c", (adding ? "" : "un"), modechar));
289 return MODEACTION_DENY;
294 // Ask mode watchers whether this mode change is OK
295 std::pair<ModeWatcherMap::iterator, ModeWatcherMap::iterator> itpair = modewatchermap.equal_range(mh->name);
296 for (ModeWatcherMap::iterator i = itpair.first; i != itpair.second; ++i)
298 ModeWatcher* mw = i->second;
299 if (mw->GetModeType() == type)
301 if (!mw->BeforeMode(user, targetuser, chan, parameter, adding))
302 return MODEACTION_DENY;
304 // A module whacked the parameter completely, and there was one. Abort.
305 if ((needs_param) && (parameter.empty()))
306 return MODEACTION_DENY;
310 if (IS_LOCAL(user) && !user->IsOper())
312 const std::bitset<64>& disabled = (type == MODETYPE_CHANNEL) ? ServerInstance->Config->DisabledCModes : ServerInstance->Config->DisabledUModes;
313 if (disabled.test(modechar - 'A'))
315 user->WriteNumeric(ERR_NOPRIVILEGES, InspIRCd::Format("Permission Denied - %s mode %c has been locked by the administrator",
316 type == MODETYPE_CHANNEL ? "channel" : "user", modechar));
317 return MODEACTION_DENY;
321 if ((adding) && (IS_LOCAL(user)) && (mh->NeedsOper()) && (!user->HasModePermission(mh)))
323 /* It's an oper only mode, and they don't have access to it. */
326 user->WriteNumeric(ERR_NOPRIVILEGES, InspIRCd::Format("Permission Denied - Oper type %s does not have access to set %s mode %c",
327 user->oper->name.c_str(), type == MODETYPE_CHANNEL ? "channel" : "user", modechar));
331 user->WriteNumeric(ERR_NOPRIVILEGES, InspIRCd::Format("Permission Denied - Only operators may set %s mode %c",
332 type == MODETYPE_CHANNEL ? "channel" : "user", modechar));
334 return MODEACTION_DENY;
337 /* Call the handler for the mode */
338 ModeAction ma = mh->OnModeChange(user, targetuser, chan, parameter, adding);
340 if ((needs_param) && (parameter.empty()))
341 return MODEACTION_DENY;
343 if (ma != MODEACTION_ALLOW)
346 itpair = modewatchermap.equal_range(mh->name);
347 for (ModeWatcherMap::iterator i = itpair.first; i != itpair.second; ++i)
349 ModeWatcher* mw = i->second;
350 if (mw->GetModeType() == type)
351 mw->AfterMode(user, targetuser, chan, parameter, adding);
354 return MODEACTION_ALLOW;
357 void ModeParser::ModeParamsToChangeList(User* user, ModeType type, const std::vector<std::string>& parameters, Modes::ChangeList& changelist, unsigned int beginindex, unsigned int endindex)
359 if (endindex > parameters.size())
360 endindex = parameters.size();
362 const std::string& mode_sequence = parameters[beginindex];
365 unsigned int param_at = beginindex+1;
367 for (std::string::const_iterator letter = mode_sequence.begin(); letter != mode_sequence.end(); letter++)
369 unsigned char modechar = *letter;
370 if (modechar == '+' || modechar == '-')
372 adding = (modechar == '+');
376 ModeHandler *mh = this->FindMode(modechar, type);
379 /* No mode handler? Unknown mode character then. */
380 user->WriteNumeric(type == MODETYPE_CHANNEL ? ERR_UNKNOWNMODE : ERR_UNKNOWNSNOMASK, modechar, "is unknown mode char to me");
384 std::string parameter;
385 if ((mh->NeedsParam(adding)) && (param_at < endindex))
386 parameter = parameters[param_at++];
388 changelist.push(mh, adding, parameter);
392 static bool IsModeParamValid(User* user, Channel* targetchannel, User* targetuser, const Modes::Change& item)
394 // An empty parameter is never acceptable
395 if (item.param.empty())
397 item.mh->OnParameterMissing(user, targetuser, targetchannel);
401 // The parameter cannot begin with a ':' character or contain a space
402 if ((item.param[0] == ':') || (item.param.find(' ') != std::string::npos))
408 // Returns true if we should apply a merged mode, false if we should skip it
409 static bool ShouldApplyMergedMode(Channel* chan, Modes::Change& item)
411 ModeHandler* mh = item.mh;
412 if ((!chan) || (!chan->IsModeSet(mh)) || (mh->IsListMode()))
413 // Mode not set here or merge is not applicable, apply the incoming mode
416 // Mode handler decides
417 std::string ours = chan->GetModeParameter(mh);
418 return mh->ResolveModeConflict(item.param, ours, chan);
421 void ModeParser::Process(User* user, Channel* targetchannel, User* targetuser, Modes::ChangeList& changelist, ModeProcessFlag flags)
423 // Call ProcessSingle until the entire list is processed, but at least once to ensure
424 // LastParse and LastChangeList are cleared
425 unsigned int processed = 0;
428 unsigned int n = ProcessSingle(user, targetchannel, targetuser, changelist, flags, processed);
431 while (processed < changelist.size());
434 unsigned int ModeParser::ProcessSingle(User* user, Channel* targetchannel, User* targetuser, Modes::ChangeList& changelist, ModeProcessFlag flags, unsigned int beginindex)
437 LastChangeList.clear();
439 unsigned int modes_processed = 0;
440 std::string output_mode;
441 std::string output_parameters;
443 char output_pm = '\0'; // current output state, '+' or '-'
444 Modes::ChangeList::List& list = changelist.getlist();
445 for (Modes::ChangeList::List::iterator i = list.begin()+beginindex; i != list.end(); ++i)
449 Modes::Change& item = *i;
450 ModeHandler* mh = item.mh;
452 // If a mode change has been given for a mode that does not exist then reject
453 // it. This can happen when core_reloadmodule attempts to restore a mode that
458 // If the mode is supposed to have a parameter then we first take a look at item.param
459 // and, if we were asked to, also handle mode merges now
460 if (mh->NeedsParam(item.adding))
462 // Skip the mode if the parameter does not pass basic validation
463 if (!IsModeParamValid(user, targetchannel, targetuser, item))
466 // If this is a merge and we won we don't apply this mode
467 if ((flags & MODE_MERGE) && (!ShouldApplyMergedMode(targetchannel, item)))
471 ModeAction ma = TryMode(user, targetuser, targetchannel, item, (!(flags & MODE_CHECKACCESS)));
473 if (ma != MODEACTION_ALLOW)
476 char needed_pm = item.adding ? '+' : '-';
477 if (needed_pm != output_pm)
479 output_pm = needed_pm;
480 output_mode.append(1, output_pm);
482 output_mode.push_back(mh->GetModeChar());
484 if (!item.param.empty())
486 output_parameters.push_back(' ');
487 output_parameters.append(item.param);
489 LastChangeList.push(mh, item.adding, item.param);
491 if ((output_mode.length() + output_parameters.length() > 450)
492 || (output_mode.length() > 100)
493 || (LastChangeList.size() >= ServerInstance->Config->Limits.MaxModes))
495 /* mode sequence is getting too long */
500 if (!output_mode.empty())
502 LastParse = targetchannel ? targetchannel->name : targetuser->nick;
503 LastParse.append(" ");
504 LastParse.append(output_mode);
505 LastParse.append(output_parameters);
508 targetchannel->WriteChannel(user, "MODE " + LastParse);
510 targetuser->WriteFrom(user, "MODE " + LastParse);
512 FOREACH_MOD(OnMode, (user, targetuser, targetchannel, LastChangeList, flags, output_mode));
515 return modes_processed;
518 void ModeParser::ShowListModeList(User* user, Channel* chan, ModeHandler* mh)
521 ModResult MOD_RESULT;
522 FIRST_MOD_RESULT(OnRawMode, MOD_RESULT, (user, chan, mh, "", true));
523 if (MOD_RESULT == MOD_RES_DENY)
528 // Ask mode watchers whether it's OK to show the list
529 std::pair<ModeWatcherMap::iterator, ModeWatcherMap::iterator> itpair = modewatchermap.equal_range(mh->name);
530 for (ModeWatcherMap::iterator i = itpair.first; i != itpair.second; ++i)
532 ModeWatcher* mw = i->second;
533 if (mw->GetModeType() == MODETYPE_CHANNEL)
535 std::string dummyparam;
537 if (!mw->BeforeMode(user, NULL, chan, dummyparam, true))
539 // A mode watcher doesn't want us to show the list
547 mh->DisplayList(user, chan);
549 mh->DisplayEmptyList(user, chan);
553 void ModeParser::CleanMask(std::string &mask)
555 std::string::size_type pos_of_pling = mask.find_first_of('!');
556 std::string::size_type pos_of_at = mask.find_first_of('@');
557 std::string::size_type pos_of_dot = mask.find_first_of('.');
558 std::string::size_type pos_of_colons = mask.find("::"); /* Because ipv6 addresses are colon delimited -- double so it treats extban as nick */
560 if (mask.length() >= 2 && mask[1] == ':')
561 return; // if it's an extban, don't even try guess how it needs to be formed.
563 if ((pos_of_pling == std::string::npos) && (pos_of_at == std::string::npos))
565 /* Just a nick, or just a host - or clearly ipv6 (starting with :) */
566 if ((pos_of_dot == std::string::npos) && (pos_of_colons == std::string::npos) && mask[0] != ':')
568 /* It has no '.' in it, it must be a nick. */
573 /* Got a dot in it? Has to be a host */
574 mask = "*!*@" + mask;
577 else if ((pos_of_pling == std::string::npos) && (pos_of_at != std::string::npos))
579 /* Has an @ but no !, its a user@host */
582 else if ((pos_of_pling != std::string::npos) && (pos_of_at == std::string::npos))
584 /* Has a ! but no @, it must be a nick!ident */
589 ModeHandler::Id ModeParser::AllocateModeId(ModeType mt)
591 for (ModeHandler::Id i = 0; i != MODEID_MAX; ++i)
593 if (!modehandlersbyid[mt][i])
597 throw ModuleException("Out of ModeIds");
600 void ModeParser::AddMode(ModeHandler* mh)
602 if (!ModeParser::IsModeChar(mh->GetModeChar()))
603 throw ModuleException("Invalid letter for mode " + mh->name);
605 /* A mode prefix of ',' is not acceptable, it would fuck up server to server.
606 * A mode prefix of ':' will fuck up both server to server, and client to server.
607 * A mode prefix of '#' will mess up /whois and /privmsg
609 PrefixMode* pm = mh->IsPrefixMode();
612 if ((pm->GetPrefix() > 126) || (pm->GetPrefix() == ',') || (pm->GetPrefix() == ':') || (pm->GetPrefix() == '#'))
613 throw ModuleException("Invalid prefix for mode " + mh->name);
615 if (FindPrefix(pm->GetPrefix()))
616 throw ModuleException("Prefix already exists for mode " + mh->name);
619 ModeHandler*& slot = modehandlers[mh->GetModeType()][mh->GetModeChar()-65];
621 throw ModuleException("Letter is already in use for mode " + mh->name);
623 // The mode needs an id if it is either a user mode, a simple mode (flag) or a parameter mode.
624 // Otherwise (for listmodes and prefix modes) the id remains MODEID_MAX, which is invalid.
625 ModeHandler::Id modeid = MODEID_MAX;
626 if ((mh->GetModeType() == MODETYPE_USER) || (mh->IsParameterMode()) || (!mh->IsListMode()))
627 modeid = AllocateModeId(mh->GetModeType());
629 if (!modehandlersbyname[mh->GetModeType()].insert(std::make_pair(mh->name, mh)).second)
630 throw ModuleException("Mode name already in use: " + mh->name);
632 // Everything is fine, add the mode
634 // If we allocated an id for this mode then save it and put the mode handler into the slot
635 if (modeid != MODEID_MAX)
638 modehandlersbyid[mh->GetModeType()][modeid] = mh;
643 mhlist.prefix.push_back(pm);
644 else if (mh->IsListModeBase())
645 mhlist.list.push_back(mh->IsListModeBase());
647 RecreateModeListFor004Numeric();
650 bool ModeParser::DelMode(ModeHandler* mh)
652 if (!ModeParser::IsModeChar(mh->GetModeChar()))
655 ModeHandlerMap& mhmap = modehandlersbyname[mh->GetModeType()];
656 ModeHandlerMap::iterator mhmapit = mhmap.find(mh->name);
657 if ((mhmapit == mhmap.end()) || (mhmapit->second != mh))
660 ModeHandler*& slot = modehandlers[mh->GetModeType()][mh->GetModeChar()-65];
664 /* Note: We can't stack here, as we have modes potentially being removed across many different channels.
665 * To stack here we have to make the algorithm slower. Discuss.
667 switch (mh->GetModeType())
671 const user_hash& users = ServerInstance->Users->GetUsers();
672 for (user_hash::const_iterator i = users.begin(); i != users.end(); )
674 User* user = i->second;
676 mh->RemoveMode(user);
680 case MODETYPE_CHANNEL:
682 const chan_hash& chans = ServerInstance->GetChans();
683 for (chan_hash::const_iterator i = chans.begin(); i != chans.end(); )
685 // The channel may not be in the hash after RemoveMode(), see m_permchannels
686 Channel* chan = i->second;
689 Modes::ChangeList changelist;
690 mh->RemoveMode(chan, changelist);
691 this->Process(ServerInstance->FakeClient, chan, NULL, changelist, MODE_LOCALONLY);
697 mhmap.erase(mhmapit);
698 if (mh->GetId() != MODEID_MAX)
699 modehandlersbyid[mh->GetModeType()][mh->GetId()] = NULL;
701 if (mh->IsPrefixMode())
702 mhlist.prefix.erase(std::find(mhlist.prefix.begin(), mhlist.prefix.end(), mh->IsPrefixMode()));
703 else if (mh->IsListModeBase())
704 mhlist.list.erase(std::find(mhlist.list.begin(), mhlist.list.end(), mh->IsListModeBase()));
706 RecreateModeListFor004Numeric();
710 ModeHandler* ModeParser::FindMode(const std::string& modename, ModeType mt)
712 ModeHandlerMap& mhmap = modehandlersbyname[mt];
713 ModeHandlerMap::const_iterator it = mhmap.find(modename);
714 if (it != mhmap.end())
720 ModeHandler* ModeParser::FindMode(unsigned const char modeletter, ModeType mt)
722 if (!ModeParser::IsModeChar(modeletter))
725 return modehandlers[mt][modeletter-65];
728 PrefixMode* ModeParser::FindPrefixMode(unsigned char modeletter)
730 ModeHandler* mh = FindMode(modeletter, MODETYPE_CHANNEL);
733 return mh->IsPrefixMode();
736 std::string ModeParser::CreateModeList(ModeType mt, bool needparam)
740 for (unsigned char mode = 'A'; mode <= 'z'; mode++)
742 ModeHandler* mh = modehandlers[mt][mode-65];
743 if ((mh) && ((!needparam) || (mh->NeedsParam(true))))
744 modestr.push_back(mode);
750 void ModeParser::RecreateModeListFor004Numeric()
752 Cached004ModeList[0] = CreateModeList(MODETYPE_USER);
753 Cached004ModeList[1] = CreateModeList(MODETYPE_CHANNEL);
754 Cached004ModeList[2] = CreateModeList(MODETYPE_CHANNEL, true);
757 PrefixMode* ModeParser::FindPrefix(unsigned const char pfxletter)
759 const PrefixModeList& list = GetPrefixModes();
760 for (PrefixModeList::const_iterator i = list.begin(); i != list.end(); ++i)
763 if (pm->GetPrefix() == pfxletter)
769 std::string ModeParser::GiveModeList(ModeType mt)
771 std::string type1; /* Listmodes EXCEPT those with a prefix */
772 std::string type2; /* Modes that take a param when adding or removing */
773 std::string type3; /* Modes that only take a param when adding */
774 std::string type4; /* Modes that dont take a param */
776 for (unsigned char mode = 'A'; mode <= 'z'; mode++)
778 ModeHandler* mh = modehandlers[mt][mode-65];
779 /* One parameter when adding */
782 if (mh->NeedsParam(true))
784 PrefixMode* pm = mh->IsPrefixMode();
785 if ((mh->IsListMode()) && ((!pm) || (pm->GetPrefix() == 0)))
787 type1 += mh->GetModeChar();
791 /* ... and one parameter when removing */
792 if (mh->NeedsParam(false))
794 /* But not a list mode */
797 type2 += mh->GetModeChar();
802 /* No parameters when removing */
803 type3 += mh->GetModeChar();
809 type4 += mh->GetModeChar();
814 return type1 + "," + type2 + "," + type3 + "," + type4;
817 struct PrefixModeSorter
819 bool operator()(PrefixMode* lhs, PrefixMode* rhs)
821 return lhs->GetPrefixRank() < rhs->GetPrefixRank();
825 std::string ModeParser::BuildPrefixes(bool lettersAndModes)
827 std::string mletters;
828 std::string mprefixes;
829 std::vector<PrefixMode*> prefixes;
831 const PrefixModeList& list = GetPrefixModes();
832 for (PrefixModeList::const_iterator i = list.begin(); i != list.end(); ++i)
836 prefixes.push_back(pm);
839 std::sort(prefixes.begin(), prefixes.end(), PrefixModeSorter());
840 for (std::vector<PrefixMode*>::const_reverse_iterator n = prefixes.rbegin(); n != prefixes.rend(); ++n)
842 mletters += (*n)->GetPrefix();
843 mprefixes += (*n)->GetModeChar();
846 return lettersAndModes ? "(" + mprefixes + ")" + mletters : mletters;
849 void ModeParser::AddModeWatcher(ModeWatcher* mw)
851 modewatchermap.insert(std::make_pair(mw->GetModeName(), mw));
854 bool ModeParser::DelModeWatcher(ModeWatcher* mw)
856 std::pair<ModeWatcherMap::iterator, ModeWatcherMap::iterator> itpair = modewatchermap.equal_range(mw->GetModeName());
857 for (ModeWatcherMap::iterator i = itpair.first; i != itpair.second; ++i)
861 modewatchermap.erase(i);
869 void ModeHandler::RemoveMode(User* user)
871 // Remove the mode if it's set on the user
872 if (user->IsModeSet(this->GetModeChar()))
874 Modes::ChangeList changelist;
875 changelist.push_remove(this);
876 ServerInstance->Modes->Process(ServerInstance->FakeClient, NULL, user, changelist, ModeParser::MODE_LOCALONLY);
880 void ModeHandler::RemoveMode(Channel* channel, Modes::ChangeList& changelist)
882 if (channel->IsModeSet(this))
884 if (this->NeedsParam(false))
885 // Removing this mode requires a parameter
886 changelist.push_remove(this, channel->GetModeParameter(this));
888 changelist.push_remove(this);
892 void PrefixMode::RemoveMode(Channel* chan, Modes::ChangeList& changelist)
894 const Channel::MemberMap& userlist = chan->GetUsers();
895 for (Channel::MemberMap::const_iterator i = userlist.begin(); i != userlist.end(); ++i)
897 if (i->second->HasMode(this))
898 changelist.push_remove(this, i->first->nick);
902 bool ModeParser::IsModeChar(char chr)
904 return ((chr >= 'A' && chr <= 'Z') || (chr >= 'a' && chr <= 'z'));
907 ModeParser::ModeParser()
909 /* Clear mode handler list */
910 memset(modehandlers, 0, sizeof(modehandlers));
911 memset(modehandlersbyid, 0, sizeof(modehandlersbyid));
914 ModeParser::~ModeParser()