2 * InspIRCd -- Internet Relay Chat Daemon
4 * Copyright (C) 2019 Matt Schatz <genius3000@g3k.solutions>
5 * Copyright (C) 2017 B00mX0r <b00mx0r@aureus.pw>
6 * Copyright (C) 2016-2019 Sadie Powell <sadie@witchery.services>
7 * Copyright (C) 2012-2016, 2018 Attila Molnar <attilamolnar@hush.com>
8 * Copyright (C) 2012, 2019 Robby <robby@chatbelgie.be>
9 * Copyright (C) 2012 Shawn Smith <ShawnSmith0828@gmail.com>
10 * Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
11 * Copyright (C) 2009 Uli Schlachter <psychon@inspircd.org>
12 * Copyright (C) 2008 Thomas Stagner <aquanight@inspircd.org>
13 * Copyright (C) 2008 Robin Burchell <robin+git@viroteck.net>
14 * Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
15 * Copyright (C) 2006-2008, 2010 Craig Edwards <brain@inspircd.org>
17 * This file is part of InspIRCd. InspIRCd is free software: you can
18 * redistribute it and/or modify it under the terms of the GNU General Public
19 * License as published by the Free Software Foundation, version 2.
21 * This program is distributed in the hope that it will be useful, but WITHOUT
22 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
23 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
26 * You should have received a copy of the GNU General Public License
27 * along with this program. If not, see <http://www.gnu.org/licenses/>.
33 ModeHandler::ModeHandler(Module* Creator, const std::string& Name, char modeletter, ParamSpec Params, ModeType type, Class mclass)
34 : ServiceProvider(Creator, Name, SERVICE_MODE)
35 , modeid(ModeParser::MODEID_MAX)
36 , parameters_taken(Params)
42 , ranktoset(HALFOP_VALUE)
43 , ranktounset(HALFOP_VALUE)
47 CullResult ModeHandler::cull()
50 ServerInstance->Modes->DelMode(this);
51 return classbase::cull();
54 ModeHandler::~ModeHandler()
58 bool ModeHandler::NeedsParam(bool adding) const
60 switch (parameters_taken)
72 std::string ModeHandler::GetUserParameter(const User* user) const
77 ModResult ModeHandler::AccessCheck(User*, Channel*, std::string &, bool)
79 return MOD_RES_PASSTHRU;
82 ModeAction ModeHandler::OnModeChange(User*, User*, Channel*, std::string&, bool)
84 return MODEACTION_DENY;
87 void ModeHandler::DisplayList(User*, Channel*)
91 void ModeHandler::DisplayEmptyList(User*, Channel*)
95 void ModeHandler::OnParameterMissing(User* user, User* dest, Channel* channel)
97 std::string message = InspIRCd::Format("You must specify a parameter for the %s mode.", name.c_str());
99 message.append(InspIRCd::Format(" Syntax: %s.", syntax.c_str()));
102 user->WriteNumeric(Numerics::InvalidModeParameter(channel, this, "*", message));
104 user->WriteNumeric(Numerics::InvalidModeParameter(dest, this, "*", message));
107 bool ModeHandler::ResolveModeConflict(std::string& theirs, const std::string& ours, Channel*)
109 return (theirs < ours);
112 void ModeHandler::RegisterService()
114 ServerInstance->Modes.AddMode(this);
115 ServerInstance->Modules.AddReferent((GetModeType() == MODETYPE_CHANNEL ? "mode/" : "umode/") + name, this);
118 ModeAction SimpleUserModeHandler::OnModeChange(User* source, User* dest, Channel* channel, std::string ¶meter, bool adding)
120 /* We're either trying to add a mode we already have or
121 remove a mode we don't have, deny. */
122 if (dest->IsModeSet(this) == adding)
123 return MODEACTION_DENY;
125 /* adding will be either true or false, depending on if we
126 are adding or removing the mode, since we already checked
127 to make sure we aren't adding a mode we have or that we
128 aren't removing a mode we don't have, we don't have to do any
129 other checks here to see if it's true or false, just add or
131 dest->SetMode(this, adding);
133 return MODEACTION_ALLOW;
137 ModeAction SimpleChannelModeHandler::OnModeChange(User* source, User* dest, Channel* channel, std::string ¶meter, bool adding)
139 /* We're either trying to add a mode we already have or
140 remove a mode we don't have, deny. */
141 if (channel->IsModeSet(this) == adding)
142 return MODEACTION_DENY;
144 /* adding will be either true or false, depending on if we
145 are adding or removing the mode, since we already checked
146 to make sure we aren't adding a mode we have or that we
147 aren't removing a mode we don't have, we don't have to do any
148 other checks here to see if it's true or false, just add or
150 channel->SetMode(this, adding);
152 return MODEACTION_ALLOW;
155 ModeWatcher::ModeWatcher(Module* Creator, const std::string& modename, ModeType type)
156 : mode(modename), m_type(type), creator(Creator)
158 ServerInstance->Modes->AddModeWatcher(this);
161 ModeWatcher::~ModeWatcher()
163 ServerInstance->Modes->DelModeWatcher(this);
166 bool ModeWatcher::BeforeMode(User*, User*, Channel*, std::string&, bool)
171 void ModeWatcher::AfterMode(User*, User*, Channel*, const std::string&, bool)
175 PrefixMode::PrefixMode(Module* Creator, const std::string& Name, char ModeLetter, unsigned int Rank, char PrefixChar)
176 : ModeHandler(Creator, Name, ModeLetter, PARAM_ALWAYS, MODETYPE_CHANNEL, MC_PREFIX)
185 ModResult PrefixMode::AccessCheck(User* src, Channel*, std::string& value, bool adding)
187 if (!adding && src->nick == value && selfremove)
188 return MOD_RES_ALLOW;
189 return MOD_RES_PASSTHRU;
192 ModeAction PrefixMode::OnModeChange(User* source, User*, Channel* chan, std::string& parameter, bool adding)
195 if (IS_LOCAL(source))
196 target = ServerInstance->FindNickOnly(parameter);
198 target = ServerInstance->FindNick(parameter);
202 source->WriteNumeric(Numerics::NoSuchNick(parameter));
203 return MODEACTION_DENY;
206 Membership* memb = chan->GetUser(target);
208 return MODEACTION_DENY;
210 parameter = target->nick;
211 return (memb->SetPrefix(this, adding) ? MODEACTION_ALLOW : MODEACTION_DENY);
214 void PrefixMode::Update(unsigned int rank, unsigned int setrank, unsigned int unsetrank, bool selfrm)
218 ranktounset = unsetrank;
222 ModeAction ParamModeBase::OnModeChange(User* source, User*, Channel* chan, std::string& parameter, bool adding)
226 if (chan->GetModeParameter(this) == parameter)
227 return MODEACTION_DENY;
229 if (OnSet(source, chan, parameter) != MODEACTION_ALLOW)
230 return MODEACTION_DENY;
232 chan->SetMode(this, true);
234 // Handler might have changed the parameter internally
236 this->GetParameter(chan, parameter);
240 if (!chan->IsModeSet(this))
241 return MODEACTION_DENY;
242 this->OnUnsetInternal(source, chan);
243 chan->SetMode(this, false);
245 return MODEACTION_ALLOW;
248 ModeAction ModeParser::TryMode(User* user, User* targetuser, Channel* chan, Modes::Change& mcitem, bool SkipACL)
250 ModeType type = chan ? MODETYPE_CHANNEL : MODETYPE_USER;
252 ModeHandler* mh = mcitem.mh;
253 bool adding = mcitem.adding;
254 const bool needs_param = mh->NeedsParam(adding);
256 std::string& parameter = mcitem.param;
257 // crop mode parameter size to MODE_PARAM_MAX characters
258 if (parameter.length() > MODE_PARAM_MAX && adding)
259 parameter.erase(MODE_PARAM_MAX);
261 ModResult MOD_RESULT;
262 FIRST_MOD_RESULT(OnRawMode, MOD_RESULT, (user, chan, mh, parameter, adding));
264 if (IS_LOCAL(user) && (MOD_RESULT == MOD_RES_DENY))
265 return MODEACTION_DENY;
267 const char modechar = mh->GetModeChar();
269 if (chan && !SkipACL && (MOD_RESULT != MOD_RES_ALLOW))
271 MOD_RESULT = mh->AccessCheck(user, chan, parameter, adding);
273 if (MOD_RESULT == MOD_RES_DENY)
274 return MODEACTION_DENY;
275 if (MOD_RESULT == MOD_RES_PASSTHRU)
277 unsigned int neededrank = mh->GetLevelRequired(adding);
278 /* Compare our rank on the channel against the rank of the required prefix,
279 * allow if >= ours. Because mIRC and xchat throw a tizz if the modes shown
280 * in NAMES(X) are not in rank order, we know the most powerful mode is listed
281 * first, so we don't need to iterate, we just look up the first instead.
283 unsigned int ourrank = chan->GetPrefixValue(user);
284 if (ourrank < neededrank)
286 const PrefixMode* neededmh = NULL;
287 const PrefixModeList& prefixmodes = GetPrefixModes();
288 for (PrefixModeList::const_iterator i = prefixmodes.begin(); i != prefixmodes.end(); ++i)
290 const PrefixMode* const privmh = *i;
291 if (privmh->GetPrefixRank() >= neededrank)
293 // this mode is sufficient to allow this action
294 if (!neededmh || privmh->GetPrefixRank() < neededmh->GetPrefixRank())
299 user->WriteNumeric(ERR_CHANOPRIVSNEEDED, chan->name, InspIRCd::Format("You must have channel %s access or above to %sset channel mode %c",
300 neededmh->name.c_str(), adding ? "" : "un", modechar));
302 user->WriteNumeric(ERR_CHANOPRIVSNEEDED, chan->name, InspIRCd::Format("You cannot %sset channel mode %c", (adding ? "" : "un"), modechar));
303 return MODEACTION_DENY;
308 // Ask mode watchers whether this mode change is OK
309 std::pair<ModeWatcherMap::iterator, ModeWatcherMap::iterator> itpair = modewatchermap.equal_range(mh->name);
310 for (ModeWatcherMap::iterator i = itpair.first; i != itpair.second; ++i)
312 ModeWatcher* mw = i->second;
313 if (mw->GetModeType() == type)
315 if (!mw->BeforeMode(user, targetuser, chan, parameter, adding))
316 return MODEACTION_DENY;
318 // A module whacked the parameter completely, and there was one. Abort.
319 if ((needs_param) && (parameter.empty()))
320 return MODEACTION_DENY;
324 if ((chan || (!chan && adding)) && IS_LOCAL(user) && mh->NeedsOper() && !user->HasModePermission(mh))
326 /* It's an oper only mode, and they don't have access to it. */
329 user->WriteNumeric(ERR_NOPRIVILEGES, InspIRCd::Format("Permission Denied - Oper type %s does not have access to %sset %s mode %c",
330 user->oper->name.c_str(), adding ? "" : "un", type == MODETYPE_CHANNEL ? "channel" : "user", modechar));
334 user->WriteNumeric(ERR_NOPRIVILEGES, InspIRCd::Format("Permission Denied - Only operators may %sset %s mode %c",
335 adding ? "" : "un", type == MODETYPE_CHANNEL ? "channel" : "user", modechar));
337 return MODEACTION_DENY;
340 /* Call the handler for the mode */
341 ModeAction ma = mh->OnModeChange(user, targetuser, chan, parameter, adding);
343 if ((needs_param) && (parameter.empty()))
344 return MODEACTION_DENY;
346 if (ma != MODEACTION_ALLOW)
349 itpair = modewatchermap.equal_range(mh->name);
350 for (ModeWatcherMap::iterator i = itpair.first; i != itpair.second; ++i)
352 ModeWatcher* mw = i->second;
353 if (mw->GetModeType() == type)
354 mw->AfterMode(user, targetuser, chan, parameter, adding);
357 return MODEACTION_ALLOW;
360 void ModeParser::ModeParamsToChangeList(User* user, ModeType type, const std::vector<std::string>& parameters, Modes::ChangeList& changelist, unsigned int beginindex, unsigned int endindex)
362 if (endindex > parameters.size())
363 endindex = parameters.size();
365 const std::string& mode_sequence = parameters[beginindex];
368 unsigned int param_at = beginindex+1;
370 for (std::string::const_iterator letter = mode_sequence.begin(); letter != mode_sequence.end(); letter++)
372 unsigned char modechar = *letter;
373 if (modechar == '+' || modechar == '-')
375 adding = (modechar == '+');
379 ModeHandler *mh = this->FindMode(modechar, type);
382 /* No mode handler? Unknown mode character then. */
383 user->WriteNumeric(type == MODETYPE_CHANNEL ? ERR_UNKNOWNMODE : ERR_UNKNOWNSNOMASK, modechar, "is an unknown mode character");
387 std::string parameter;
388 if ((mh->NeedsParam(adding)) && (param_at < endindex))
389 parameter = parameters[param_at++];
391 changelist.push(mh, adding, parameter);
395 static bool IsModeParamValid(User* user, Channel* targetchannel, User* targetuser, const Modes::Change& item)
397 // An empty parameter is never acceptable
398 if (item.param.empty())
400 item.mh->OnParameterMissing(user, targetuser, targetchannel);
404 // The parameter cannot begin with a ':' character or contain a space
405 if ((item.param[0] == ':') || (item.param.find(' ') != std::string::npos))
411 // Returns true if we should apply a merged mode, false if we should skip it
412 static bool ShouldApplyMergedMode(Channel* chan, Modes::Change& item)
414 ModeHandler* mh = item.mh;
415 if ((!chan) || (!chan->IsModeSet(mh)) || (mh->IsListMode()))
416 // Mode not set here or merge is not applicable, apply the incoming mode
419 // Mode handler decides
420 std::string ours = chan->GetModeParameter(mh);
421 return mh->ResolveModeConflict(item.param, ours, chan);
424 void ModeParser::Process(User* user, Channel* targetchannel, User* targetuser, Modes::ChangeList& changelist, ModeProcessFlag flags)
426 // Call ProcessSingle until the entire list is processed, but at least once to ensure
427 // LastParse and LastChangeList are cleared
428 unsigned int processed = 0;
431 unsigned int n = ProcessSingle(user, targetchannel, targetuser, changelist, flags, processed);
434 while (processed < changelist.size());
437 unsigned int ModeParser::ProcessSingle(User* user, Channel* targetchannel, User* targetuser, Modes::ChangeList& changelist, ModeProcessFlag flags, unsigned int beginindex)
439 LastChangeList.clear();
441 unsigned int modes_processed = 0;
442 Modes::ChangeList::List& list = changelist.getlist();
443 for (Modes::ChangeList::List::iterator i = list.begin()+beginindex; i != list.end(); ++i)
447 Modes::Change& item = *i;
448 ModeHandler* mh = item.mh;
450 // If a mode change has been given for a mode that does not exist then reject
451 // it. This can happen when core_reloadmodule attempts to restore a mode that
456 // If the mode is supposed to have a parameter then we first take a look at item.param
457 // and, if we were asked to, also handle mode merges now
458 if (mh->NeedsParam(item.adding))
460 // Skip the mode if the parameter does not pass basic validation
461 if (!IsModeParamValid(user, targetchannel, targetuser, item))
464 // If this is a merge and we won we don't apply this mode
465 if ((flags & MODE_MERGE) && (!ShouldApplyMergedMode(targetchannel, item)))
469 ModeAction ma = TryMode(user, targetuser, targetchannel, item, (!(flags & MODE_CHECKACCESS)));
471 if (ma != MODEACTION_ALLOW)
474 LastChangeList.push(mh, item.adding, item.param);
476 if (LastChangeList.size() >= ServerInstance->Config->Limits.MaxModes)
478 /* mode sequence is getting too long */
483 if (!LastChangeList.empty())
485 ClientProtocol::Events::Mode modeevent(user, targetchannel, targetuser, LastChangeList);
488 targetchannel->Write(modeevent);
492 LocalUser* localtarget = IS_LOCAL(targetuser);
494 localtarget->Send(modeevent);
497 FOREACH_MOD(OnMode, (user, targetuser, targetchannel, LastChangeList, flags));
500 return modes_processed;
503 void ModeParser::ShowListModeList(User* user, Channel* chan, ModeHandler* mh)
506 ModResult MOD_RESULT;
507 FIRST_MOD_RESULT(OnRawMode, MOD_RESULT, (user, chan, mh, "", true));
508 if (MOD_RESULT == MOD_RES_DENY)
513 // Ask mode watchers whether it's OK to show the list
514 std::pair<ModeWatcherMap::iterator, ModeWatcherMap::iterator> itpair = modewatchermap.equal_range(mh->name);
515 for (ModeWatcherMap::iterator i = itpair.first; i != itpair.second; ++i)
517 ModeWatcher* mw = i->second;
518 if (mw->GetModeType() == MODETYPE_CHANNEL)
520 std::string dummyparam;
522 if (!mw->BeforeMode(user, NULL, chan, dummyparam, true))
524 // A mode watcher doesn't want us to show the list
532 mh->DisplayList(user, chan);
534 mh->DisplayEmptyList(user, chan);
538 void ModeParser::CleanMask(std::string &mask)
540 std::string::size_type pos_of_pling = mask.find_first_of('!');
541 std::string::size_type pos_of_at = mask.find_first_of('@');
542 std::string::size_type pos_of_dot = mask.find_first_of('.');
543 std::string::size_type pos_of_colons = mask.find("::"); /* Because ipv6 addresses are colon delimited -- double so it treats extban as nick */
545 if (mask.length() >= 2 && mask[1] == ':')
546 return; // if it's an extban, don't even try guess how it needs to be formed.
548 if ((pos_of_pling == std::string::npos) && (pos_of_at == std::string::npos))
550 /* Just a nick, or just a host - or clearly ipv6 (starting with :) */
551 if ((pos_of_dot == std::string::npos) && (pos_of_colons == std::string::npos) && mask[0] != ':')
553 /* It has no '.' in it, it must be a nick. */
558 /* Got a dot in it? Has to be a host */
559 mask = "*!*@" + mask;
562 else if ((pos_of_pling == std::string::npos) && (pos_of_at != std::string::npos))
564 /* Has an @ but no !, its a user@host */
567 else if ((pos_of_pling != std::string::npos) && (pos_of_at == std::string::npos))
569 /* Has a ! but no @, it must be a nick!ident */
574 ModeHandler::Id ModeParser::AllocateModeId(ModeType mt)
576 for (ModeHandler::Id i = 0; i != MODEID_MAX; ++i)
578 if (!modehandlersbyid[mt][i])
582 throw ModuleException("Out of ModeIds");
585 void ModeParser::AddMode(ModeHandler* mh)
587 if (!ModeParser::IsModeChar(mh->GetModeChar()))
588 throw ModuleException(InspIRCd::Format("Mode letter for %s is invalid: %c",
589 mh->name.c_str(), mh->GetModeChar()));
591 /* A mode prefix of ',' is not acceptable, it would fuck up server to server.
592 * A mode prefix of ':' will fuck up both server to server, and client to server.
593 * A mode prefix of '#' will mess up /whois and /privmsg
595 PrefixMode* pm = mh->IsPrefixMode();
598 if ((pm->GetPrefix() > 126) || (pm->GetPrefix() == ',') || (pm->GetPrefix() == ':') || (pm->GetPrefix() == '#'))
599 throw ModuleException(InspIRCd::Format("Mode prefix for %s is invalid: %c",
600 mh->name.c_str(), pm->GetPrefix()));
602 PrefixMode* otherpm = FindPrefix(pm->GetPrefix());
604 throw ModuleException(InspIRCd::Format("Mode prefix for %s already used by %s from %s: %c",
605 mh->name.c_str(), otherpm->name.c_str(), otherpm->creator->ModuleSourceFile.c_str(), pm->GetPrefix()));
608 ModeHandler*& slot = modehandlers[mh->GetModeType()][mh->GetModeChar()-65];
610 throw ModuleException(InspIRCd::Format("Mode letter for %s already used by %s from %s: %c",
611 mh->name.c_str(), slot->name.c_str(), slot->creator->ModuleSourceFile.c_str(), mh->GetModeChar()));
613 // The mode needs an id if it is either a user mode, a simple mode (flag) or a parameter mode.
614 // Otherwise (for listmodes and prefix modes) the id remains MODEID_MAX, which is invalid.
615 ModeHandler::Id modeid = MODEID_MAX;
616 if ((mh->GetModeType() == MODETYPE_USER) || (mh->IsParameterMode()) || (!mh->IsListMode()))
617 modeid = AllocateModeId(mh->GetModeType());
619 std::pair<ModeHandlerMap::iterator, bool> res = modehandlersbyname[mh->GetModeType()].insert(std::make_pair(mh->name, mh));
622 ModeHandler* othermh = res.first->second;
623 throw ModuleException(InspIRCd::Format("Mode name %s already used by %c from %s",
624 mh->name.c_str(), othermh->GetModeChar(), othermh->creator->ModuleSourceFile.c_str()));
627 // Everything is fine, add the mode
629 // If we allocated an id for this mode then save it and put the mode handler into the slot
630 if (modeid != MODEID_MAX)
633 modehandlersbyid[mh->GetModeType()][modeid] = mh;
638 mhlist.prefix.push_back(pm);
639 else if (mh->IsListModeBase())
640 mhlist.list.push_back(mh->IsListModeBase());
643 bool ModeParser::DelMode(ModeHandler* mh)
645 if (!ModeParser::IsModeChar(mh->GetModeChar()))
648 ModeHandlerMap& mhmap = modehandlersbyname[mh->GetModeType()];
649 ModeHandlerMap::iterator mhmapit = mhmap.find(mh->name);
650 if ((mhmapit == mhmap.end()) || (mhmapit->second != mh))
653 ModeHandler*& slot = modehandlers[mh->GetModeType()][mh->GetModeChar()-65];
657 /* Note: We can't stack here, as we have modes potentially being removed across many different channels.
658 * To stack here we have to make the algorithm slower. Discuss.
660 switch (mh->GetModeType())
664 const user_hash& users = ServerInstance->Users->GetUsers();
665 for (user_hash::const_iterator i = users.begin(); i != users.end(); )
667 User* user = i->second;
669 mh->RemoveMode(user);
673 case MODETYPE_CHANNEL:
675 const chan_hash& chans = ServerInstance->GetChans();
676 for (chan_hash::const_iterator i = chans.begin(); i != chans.end(); )
678 // The channel may not be in the hash after RemoveMode(), see m_permchannels
679 Channel* chan = i->second;
682 Modes::ChangeList changelist;
683 mh->RemoveMode(chan, changelist);
684 this->Process(ServerInstance->FakeClient, chan, NULL, changelist, MODE_LOCALONLY);
690 mhmap.erase(mhmapit);
691 if (mh->GetId() != MODEID_MAX)
692 modehandlersbyid[mh->GetModeType()][mh->GetId()] = NULL;
694 if (mh->IsPrefixMode())
695 mhlist.prefix.erase(std::find(mhlist.prefix.begin(), mhlist.prefix.end(), mh->IsPrefixMode()));
696 else if (mh->IsListModeBase())
697 mhlist.list.erase(std::find(mhlist.list.begin(), mhlist.list.end(), mh->IsListModeBase()));
701 ModeHandler* ModeParser::FindMode(const std::string& modename, ModeType mt)
703 ModeHandlerMap& mhmap = modehandlersbyname[mt];
704 ModeHandlerMap::const_iterator it = mhmap.find(modename);
705 if (it != mhmap.end())
711 ModeHandler* ModeParser::FindMode(unsigned const char modeletter, ModeType mt)
713 if (!ModeParser::IsModeChar(modeletter))
716 return modehandlers[mt][modeletter-65];
719 PrefixMode* ModeParser::FindPrefixMode(unsigned char modeletter)
721 ModeHandler* mh = FindMode(modeletter, MODETYPE_CHANNEL);
724 return mh->IsPrefixMode();
727 PrefixMode* ModeParser::FindPrefix(unsigned const char pfxletter)
729 const PrefixModeList& list = GetPrefixModes();
730 for (PrefixModeList::const_iterator i = list.begin(); i != list.end(); ++i)
733 if (pm->GetPrefix() == pfxletter)
739 std::string ModeParser::GiveModeList(ModeType mt)
741 std::string type1; /* Listmodes EXCEPT those with a prefix */
742 std::string type2; /* Modes that take a param when adding or removing */
743 std::string type3; /* Modes that only take a param when adding */
744 std::string type4; /* Modes that dont take a param */
746 for (unsigned char mode = 'A'; mode <= 'z'; mode++)
748 ModeHandler* mh = modehandlers[mt][mode-65];
749 /* One parameter when adding */
752 if (mh->NeedsParam(true))
754 PrefixMode* pm = mh->IsPrefixMode();
755 if ((mh->IsListMode()) && ((!pm) || (pm->GetPrefix() == 0)))
757 type1 += mh->GetModeChar();
761 /* ... and one parameter when removing */
762 if (mh->NeedsParam(false))
764 /* But not a list mode */
767 type2 += mh->GetModeChar();
772 /* No parameters when removing */
773 type3 += mh->GetModeChar();
779 type4 += mh->GetModeChar();
784 return type1 + "," + type2 + "," + type3 + "," + type4;
787 struct PrefixModeSorter
789 bool operator()(PrefixMode* lhs, PrefixMode* rhs)
791 return lhs->GetPrefixRank() < rhs->GetPrefixRank();
795 std::string ModeParser::BuildPrefixes(bool lettersAndModes)
797 std::string mletters;
798 std::string mprefixes;
799 std::vector<PrefixMode*> prefixes;
801 const PrefixModeList& list = GetPrefixModes();
802 for (PrefixModeList::const_iterator i = list.begin(); i != list.end(); ++i)
806 prefixes.push_back(pm);
809 std::sort(prefixes.begin(), prefixes.end(), PrefixModeSorter());
810 for (std::vector<PrefixMode*>::const_reverse_iterator n = prefixes.rbegin(); n != prefixes.rend(); ++n)
812 mletters += (*n)->GetPrefix();
813 mprefixes += (*n)->GetModeChar();
816 return lettersAndModes ? "(" + mprefixes + ")" + mletters : mletters;
819 void ModeParser::AddModeWatcher(ModeWatcher* mw)
821 modewatchermap.insert(std::make_pair(mw->GetModeName(), mw));
824 bool ModeParser::DelModeWatcher(ModeWatcher* mw)
826 std::pair<ModeWatcherMap::iterator, ModeWatcherMap::iterator> itpair = modewatchermap.equal_range(mw->GetModeName());
827 for (ModeWatcherMap::iterator i = itpair.first; i != itpair.second; ++i)
831 modewatchermap.erase(i);
839 void ModeHandler::RemoveMode(User* user)
841 // Remove the mode if it's set on the user
842 if (user->IsModeSet(this->GetModeChar()))
844 Modes::ChangeList changelist;
845 changelist.push_remove(this);
846 ServerInstance->Modes->Process(ServerInstance->FakeClient, NULL, user, changelist, ModeParser::MODE_LOCALONLY);
850 void ModeHandler::RemoveMode(Channel* channel, Modes::ChangeList& changelist)
852 if (channel->IsModeSet(this))
854 if (this->NeedsParam(false))
855 // Removing this mode requires a parameter
856 changelist.push_remove(this, channel->GetModeParameter(this));
858 changelist.push_remove(this);
862 void PrefixMode::RemoveMode(Channel* chan, Modes::ChangeList& changelist)
864 const Channel::MemberMap& userlist = chan->GetUsers();
865 for (Channel::MemberMap::const_iterator i = userlist.begin(); i != userlist.end(); ++i)
867 if (i->second->HasMode(this))
868 changelist.push_remove(this, i->first->nick);
872 bool ModeParser::IsModeChar(char chr)
874 return ((chr >= 'A' && chr <= 'Z') || (chr >= 'a' && chr <= 'z'));
877 ModeParser::ModeParser()
879 /* Clear mode handler list */
880 memset(modehandlers, 0, sizeof(modehandlers));
881 memset(modehandlersbyid, 0, sizeof(modehandlersbyid));
884 ModeParser::~ModeParser()