2 * InspIRCd -- Internet Relay Chat Daemon
4 * Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
5 * Copyright (C) 2004, 2008 Craig Edwards <craigedwards@brainbox.cc>
6 * Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
7 * Copyright (C) 2007 Robin Burchell <robin+git@viroteck.net>
9 * This file is part of InspIRCd. InspIRCd is free software: you can
10 * redistribute it and/or modify it under the terms of the GNU General Public
11 * License as published by the Free Software Foundation, version 2.
13 * This program is distributed in the hope that it will be useful, but WITHOUT
14 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
15 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
18 * You should have received a copy of the GNU General Public License
19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
25 #include "modules/regex.h"
26 #include "modules/server.h"
27 #include "modules/shun.h"
28 #include "modules/stats.h"
57 unsigned long duration;
61 bool flag_part_message;
62 bool flag_quit_message;
65 bool flag_strip_color;
67 FilterResult(dynamic_reference<RegexFactory>& RegexEngine, const std::string& free, const std::string& rea, FilterAction act, unsigned long gt, const std::string& fla, bool cfg)
75 throw ModuleException("Regex module implementing '"+RegexEngine.GetProvider()+"' is not loaded!");
76 regex = RegexEngine->Create(free);
80 char FillFlags(const std::string &fl)
82 flag_no_opers = flag_part_message = flag_quit_message = flag_privmsg =
83 flag_notice = flag_strip_color = false;
85 for (std::string::const_iterator n = fl.begin(); n != fl.end(); ++n)
93 flag_part_message = true;
96 flag_quit_message = true;
105 flag_strip_color = true;
108 flag_no_opers = flag_part_message = flag_quit_message =
109 flag_privmsg = flag_notice = flag_strip_color = true;
119 std::string GetFlags()
123 flags.push_back('o');
124 if (flag_part_message)
125 flags.push_back('P');
126 if (flag_quit_message)
127 flags.push_back('q');
129 flags.push_back('p');
131 flags.push_back('n');
133 /* Order is important here, 'c' must be the last char in the string as it is unsupported
134 * on < 2.0.10, and the logic in FillFlags() stops parsing when it ecounters an unknown
137 if (flag_strip_color)
138 flags.push_back('c');
141 flags.push_back('-');
151 class CommandFilter : public Command
154 CommandFilter(Module* f)
155 : Command(f, "FILTER", 1, 5)
158 this->syntax = "<pattern> [<action> <flags> [<duration>] :<reason>]";
160 CmdResult Handle(User* user, const Params& parameters) CXX11_OVERRIDE;
162 RouteDescriptor GetRouting(User* user, const Params& parameters) CXX11_OVERRIDE
164 return ROUTE_BROADCAST;
168 class ModuleFilter : public Module, public ServerEventListener, public Stats::EventListener
170 typedef insp::flat_set<std::string, irc::insensitive_swo> ExemptTargetSet;
174 RegexFactory* factory;
178 CommandFilter filtcommand;
179 dynamic_reference<RegexFactory> RegexEngine;
181 std::vector<FilterResult> filters;
184 // List of channel names excluded from filtering.
185 ExemptTargetSet exemptedchans;
187 // List of target nicknames excluded from filtering.
188 ExemptTargetSet exemptednicks;
191 void init() CXX11_OVERRIDE;
192 CullResult cull() CXX11_OVERRIDE;
193 ModResult OnUserPreMessage(User* user, const MessageTarget& target, MessageDetails& details) CXX11_OVERRIDE;
194 FilterResult* FilterMatch(User* user, const std::string &text, int flags);
195 bool DeleteFilter(const std::string& freeform, std::string& reason);
196 std::pair<bool, std::string> AddFilter(const std::string& freeform, FilterAction type, const std::string& reason, unsigned long duration, const std::string& flags, bool config = false);
197 void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE;
198 Version GetVersion() CXX11_OVERRIDE;
199 std::string EncodeFilter(FilterResult* filter);
200 FilterResult DecodeFilter(const std::string &data);
201 void OnSyncNetwork(ProtocolInterface::Server& server) CXX11_OVERRIDE;
202 void OnDecodeMetaData(Extensible* target, const std::string &extname, const std::string &extdata) CXX11_OVERRIDE;
203 ModResult OnStats(Stats::Context& stats) CXX11_OVERRIDE;
204 ModResult OnPreCommand(std::string& command, CommandBase::Params& parameters, LocalUser* user, bool validated) CXX11_OVERRIDE;
205 void OnUnloadModule(Module* mod) CXX11_OVERRIDE;
206 bool AppliesToMe(User* user, FilterResult* filter, int flags);
208 static bool StringToFilterAction(const std::string& str, FilterAction& fa);
209 static std::string FilterActionToString(FilterAction fa);
212 CmdResult CommandFilter::Handle(User* user, const Params& parameters)
214 if (parameters.size() == 1)
216 /* Deleting a filter */
217 Module* me = creator;
220 if (static_cast<ModuleFilter*>(me)->DeleteFilter(parameters[0], reason))
222 user->WriteNotice("*** Removed filter '" + parameters[0] + "': " + reason);
223 ServerInstance->SNO->WriteToSnoMask(IS_LOCAL(user) ? 'f' : 'F', "%s removed filter '%s': %s",
224 user->nick.c_str(), parameters[0].c_str(), reason.c_str());
229 user->WriteNotice("*** Filter '" + parameters[0] + "' not found in list, try /stats s.");
235 /* Adding a filter */
236 if (parameters.size() >= 4)
238 const std::string& freeform = parameters[0];
240 const std::string& flags = parameters[2];
241 unsigned int reasonindex;
242 unsigned long duration = 0;
244 if (!ModuleFilter::StringToFilterAction(parameters[1], type))
246 if (ServerInstance->XLines->GetFactory("SHUN"))
247 user->WriteNotice("*** Invalid filter type '" + parameters[1] + "'. Supported types are 'gline', 'zline', 'none', 'warn', 'block', 'silent', 'kill', and 'shun'.");
249 user->WriteNotice("*** Invalid filter type '" + parameters[1] + "'. Supported types are 'gline', 'zline', 'none', 'warn', 'block', 'silent', and 'kill'.");
253 if (type == FA_GLINE || type == FA_ZLINE || type == FA_SHUN)
255 if (parameters.size() >= 5)
257 if (!InspIRCd::Duration(parameters[3], duration))
259 user->WriteNotice("*** Invalid duration for filter");
266 user->WriteNotice("*** Not enough parameters: When setting a '" + parameters[1] + "' type filter, a duration must be specified as the third parameter.");
275 Module* me = creator;
276 std::pair<bool, std::string> result = static_cast<ModuleFilter*>(me)->AddFilter(freeform, type, parameters[reasonindex], duration, flags);
279 const std::string message = InspIRCd::Format("'%s', type '%s'%s, flags '%s', reason: %s",
280 freeform.c_str(), parameters[1].c_str(),
281 (duration ? InspIRCd::Format(", duration '%s'",
282 InspIRCd::DurationString(duration).c_str()).c_str()
283 : ""), flags.c_str(), parameters[reasonindex].c_str());
285 user->WriteNotice("*** Added filter " + message);
286 ServerInstance->SNO->WriteToSnoMask(IS_LOCAL(user) ? 'f' : 'F',
287 "%s added filter %s", user->nick.c_str(), message.c_str());
293 user->WriteNotice("*** Filter '" + freeform + "' could not be added: " + result.second);
299 user->WriteNotice("*** Not enough parameters.");
306 bool ModuleFilter::AppliesToMe(User* user, FilterResult* filter, int iflags)
308 if ((filter->flag_no_opers) && user->IsOper())
310 if ((iflags & FLAG_PRIVMSG) && (!filter->flag_privmsg))
312 if ((iflags & FLAG_NOTICE) && (!filter->flag_notice))
314 if ((iflags & FLAG_QUIT) && (!filter->flag_quit_message))
316 if ((iflags & FLAG_PART) && (!filter->flag_part_message))
321 ModuleFilter::ModuleFilter()
322 : ServerEventListener(this)
323 , Stats::EventListener(this)
326 , RegexEngine(this, "regex")
330 void ModuleFilter::init()
332 ServerInstance->SNO->EnableSnomask('f', "FILTER");
335 CullResult ModuleFilter::cull()
338 return Module::cull();
341 void ModuleFilter::FreeFilters()
343 for (std::vector<FilterResult>::const_iterator i = filters.begin(); i != filters.end(); ++i)
349 ModResult ModuleFilter::OnUserPreMessage(User* user, const MessageTarget& msgtarget, MessageDetails& details)
351 // Leave remote users and servers alone
353 return MOD_RES_PASSTHRU;
355 flags = (details.type == MSG_PRIVMSG) ? FLAG_PRIVMSG : FLAG_NOTICE;
357 FilterResult* f = this->FilterMatch(user, details.text, flags);
361 if (msgtarget.type == MessageTarget::TYPE_USER)
363 User* t = msgtarget.Get<User>();
364 // Check if the target nick is exempted, if yes, ignore this message
365 if (exemptednicks.count(t->nick))
366 return MOD_RES_PASSTHRU;
370 else if (msgtarget.type == MessageTarget::TYPE_CHANNEL)
372 Channel* t = msgtarget.Get<Channel>();
373 if (exemptedchans.count(t->name))
374 return MOD_RES_PASSTHRU;
378 if (f->action == FA_WARN)
380 ServerInstance->SNO->WriteGlobalSno('f', InspIRCd::Format("WARNING: %s's message to %s matched %s (%s)",
381 user->nick.c_str(), target.c_str(), f->freeform.c_str(), f->reason.c_str()));
382 return MOD_RES_PASSTHRU;
384 if (f->action == FA_BLOCK)
386 ServerInstance->SNO->WriteGlobalSno('f', InspIRCd::Format("%s had their message to %s filtered as it matched %s (%s)",
387 user->nick.c_str(), target.c_str(), f->freeform.c_str(), f->reason.c_str()));
390 if (msgtarget.type == MessageTarget::TYPE_CHANNEL)
391 user->WriteNumeric(ERR_CANNOTSENDTOCHAN, target, InspIRCd::Format("Message to channel blocked and opers notified (%s)", f->reason.c_str()));
393 user->WriteNotice("Your message to "+target+" was blocked and opers notified: "+f->reason);
396 details.echo_original = true;
398 else if (f->action == FA_SILENT)
402 if (msgtarget.type == MessageTarget::TYPE_CHANNEL)
403 user->WriteNumeric(ERR_CANNOTSENDTOCHAN, target, InspIRCd::Format("Message to channel blocked (%s)", f->reason.c_str()));
405 user->WriteNotice("Your message to "+target+" was blocked: "+f->reason);
408 details.echo_original = true;
410 else if (f->action == FA_KILL)
412 ServerInstance->SNO->WriteGlobalSno('f', InspIRCd::Format("%s was killed because their message to %s matched %s (%s)",
413 user->nick.c_str(), target.c_str(), f->freeform.c_str(), f->reason.c_str()));
414 ServerInstance->Users->QuitUser(user, "Filtered: " + f->reason);
416 else if (f->action == FA_SHUN && (ServerInstance->XLines->GetFactory("SHUN")))
418 Shun* sh = new Shun(ServerInstance->Time(), f->duration, ServerInstance->Config->ServerName.c_str(), f->reason.c_str(), user->GetIPString());
419 ServerInstance->SNO->WriteGlobalSno('f', InspIRCd::Format("%s (%s) was shunned for %s (expires on %s) because their message to %s matched %s (%s)",
420 user->nick.c_str(), sh->Displayable().c_str(), InspIRCd::DurationString(f->duration).c_str(),
421 InspIRCd::TimeString(ServerInstance->Time() + f->duration).c_str(),
422 target.c_str(), f->freeform.c_str(), f->reason.c_str()));
423 if (ServerInstance->XLines->AddLine(sh, NULL))
425 ServerInstance->XLines->ApplyLines();
430 else if (f->action == FA_GLINE)
432 GLine* gl = new GLine(ServerInstance->Time(), f->duration, ServerInstance->Config->ServerName.c_str(), f->reason.c_str(), "*", user->GetIPString());
433 ServerInstance->SNO->WriteGlobalSno('f', InspIRCd::Format("%s (%s) was G-lined for %s (expires on %s) because their message to %s matched %s (%s)",
434 user->nick.c_str(), gl->Displayable().c_str(), InspIRCd::DurationString(f->duration).c_str(),
435 InspIRCd::TimeString(ServerInstance->Time() + f->duration).c_str(),
436 target.c_str(), f->freeform.c_str(), f->reason.c_str()));
437 if (ServerInstance->XLines->AddLine(gl,NULL))
439 ServerInstance->XLines->ApplyLines();
444 else if (f->action == FA_ZLINE)
446 ZLine* zl = new ZLine(ServerInstance->Time(), f->duration, ServerInstance->Config->ServerName.c_str(), f->reason.c_str(), user->GetIPString());
447 ServerInstance->SNO->WriteGlobalSno('f', InspIRCd::Format("%s (%s) was Z-lined for %s (expires on %s) because their message to %s matched %s (%s)",
448 user->nick.c_str(), zl->Displayable().c_str(), InspIRCd::DurationString(f->duration).c_str(),
449 InspIRCd::TimeString(ServerInstance->Time() + f->duration).c_str(),
450 target.c_str(), f->freeform.c_str(), f->reason.c_str()));
451 if (ServerInstance->XLines->AddLine(zl,NULL))
453 ServerInstance->XLines->ApplyLines();
459 ServerInstance->Logs->Log(MODNAME, LOG_DEFAULT, user->nick + " had their message filtered, target was " + target + ": " + f->reason + " Action: " + ModuleFilter::FilterActionToString(f->action));
462 return MOD_RES_PASSTHRU;
465 ModResult ModuleFilter::OnPreCommand(std::string& command, CommandBase::Params& parameters, LocalUser* user, bool validated)
472 if (command == "QUIT")
474 /* QUIT with no reason: nothing to do */
475 if (parameters.size() < 1)
476 return MOD_RES_PASSTHRU;
481 else if (command == "PART")
483 /* PART with no reason: nothing to do */
484 if (parameters.size() < 2)
485 return MOD_RES_PASSTHRU;
487 if (exemptedchans.count(parameters[0]))
488 return MOD_RES_PASSTHRU;
494 /* We're only messing with PART and QUIT */
495 return MOD_RES_PASSTHRU;
497 FilterResult* f = this->FilterMatch(user, parameters[parting ? 1 : 0], flags);
499 /* PART or QUIT reason doesnt match a filter */
500 return MOD_RES_PASSTHRU;
502 /* We cant block a part or quit, so instead we change the reason to 'Reason filtered' */
503 parameters[parting ? 1 : 0] = "Reason filtered";
505 /* We're warning or blocking, OR theyre quitting and its a KILL action
506 * (we cant kill someone whos already quitting, so filter them anyway)
508 if ((f->action == FA_WARN) || (f->action == FA_BLOCK) || (((!parting) && (f->action == FA_KILL))) || (f->action == FA_SILENT))
510 return MOD_RES_PASSTHRU;
514 /* Are they parting, if so, kill is applicable */
515 if ((parting) && (f->action == FA_KILL))
517 user->WriteNotice("*** Your PART message was filtered: " + f->reason);
518 ServerInstance->Users->QuitUser(user, "Filtered: " + f->reason);
520 if (f->action == FA_GLINE)
522 /* Note: We G-line *@IP so that if their host doesn't resolve the G-line still applies. */
523 GLine* gl = new GLine(ServerInstance->Time(), f->duration, ServerInstance->Config->ServerName.c_str(), f->reason.c_str(), "*", user->GetIPString());
524 ServerInstance->SNO->WriteGlobalSno('f', InspIRCd::Format("%s (%s) was G-lined for %s (expires on %s) because their %s message matched %s (%s)",
525 user->nick.c_str(), gl->Displayable().c_str(),
526 InspIRCd::DurationString(f->duration).c_str(),
527 InspIRCd::TimeString(ServerInstance->Time() + f->duration).c_str(),
528 command.c_str(), f->freeform.c_str(), f->reason.c_str()));
530 if (ServerInstance->XLines->AddLine(gl,NULL))
532 ServerInstance->XLines->ApplyLines();
537 if (f->action == FA_ZLINE)
539 ZLine* zl = new ZLine(ServerInstance->Time(), f->duration, ServerInstance->Config->ServerName.c_str(), f->reason.c_str(), user->GetIPString());
540 ServerInstance->SNO->WriteGlobalSno('f', InspIRCd::Format("%s (%s) was Z-lined for %s (expires on %s) because their %s message matched %s (%s)",
541 user->nick.c_str(), zl->Displayable().c_str(),
542 InspIRCd::DurationString(f->duration).c_str(),
543 InspIRCd::TimeString(ServerInstance->Time() + f->duration).c_str(),
544 command.c_str(), f->freeform.c_str(), f->reason.c_str()));
546 if (ServerInstance->XLines->AddLine(zl,NULL))
548 ServerInstance->XLines->ApplyLines();
553 else if (f->action == FA_SHUN && (ServerInstance->XLines->GetFactory("SHUN")))
555 /* Note: We shun *!*@IP so that if their host doesnt resolve the shun still applies. */
556 Shun* sh = new Shun(ServerInstance->Time(), f->duration, ServerInstance->Config->ServerName.c_str(), f->reason.c_str(), user->GetIPString());
557 ServerInstance->SNO->WriteGlobalSno('f', InspIRCd::Format("%s (%s) was shunned for %s (expires on %s) because their %s message matched %s (%s)",
558 user->nick.c_str(), sh->Displayable().c_str(),
559 InspIRCd::DurationString(f->duration).c_str(),
560 InspIRCd::TimeString(ServerInstance->Time() + f->duration).c_str(),
561 command.c_str(), f->freeform.c_str(), f->reason.c_str()));
563 if (ServerInstance->XLines->AddLine(sh, NULL))
565 ServerInstance->XLines->ApplyLines();
573 return MOD_RES_PASSTHRU;
576 void ModuleFilter::ReadConfig(ConfigStatus& status)
578 ConfigTagList tags = ServerInstance->Config->ConfTags("exemptfromfilter");
579 exemptedchans.clear();
580 exemptednicks.clear();
582 for (ConfigIter i = tags.first; i != tags.second; ++i)
584 ConfigTag* tag = i->second;
586 // If "target" is not found, try the old "channel" key to keep compatibility with 2.0 configs
587 const std::string target = tag->getString("target", tag->getString("channel"));
590 if (target[0] == '#')
591 exemptedchans.insert(target);
593 exemptednicks.insert(target);
597 ConfigTag* tag = ServerInstance->Config->ConfValue("filteropts");
598 std::string newrxengine = tag->getString("engine");
599 notifyuser = tag->getBool("notifyuser", true);
601 factory = RegexEngine ? (RegexEngine.operator->()) : NULL;
603 if (newrxengine.empty())
604 RegexEngine.SetProvider("regex");
606 RegexEngine.SetProvider("regex/" + newrxengine);
610 if (newrxengine.empty())
611 ServerInstance->SNO->WriteGlobalSno('f', "WARNING: No regex engine loaded - Filter functionality disabled until this is corrected.");
613 ServerInstance->SNO->WriteGlobalSno('f', "WARNING: Regex engine '%s' is not loaded - Filter functionality disabled until this is corrected.", newrxengine.c_str());
620 if ((!initing) && (RegexEngine.operator->() != factory))
622 ServerInstance->SNO->WriteGlobalSno('f', "Dumping all filters due to regex engine change");
630 Version ModuleFilter::GetVersion()
632 return Version("Text (spam) filtering", VF_VENDOR | VF_COMMON, RegexEngine ? RegexEngine->name : "");
635 std::string ModuleFilter::EncodeFilter(FilterResult* filter)
637 std::ostringstream stream;
638 std::string x = filter->freeform;
640 /* Hax to allow spaces in the freeform without changing the design of the irc protocol */
641 for (std::string::iterator n = x.begin(); n != x.end(); n++)
645 stream << x << " " << FilterActionToString(filter->action) << " " << filter->GetFlags() << " " << filter->duration << " :" << filter->reason;
649 FilterResult ModuleFilter::DecodeFilter(const std::string &data)
651 std::string filteraction;
653 irc::tokenstream tokens(data);
654 tokens.GetMiddle(res.freeform);
655 tokens.GetMiddle(filteraction);
656 if (!StringToFilterAction(filteraction, res.action))
657 throw ModuleException("Invalid action: " + filteraction);
659 std::string filterflags;
660 tokens.GetMiddle(filterflags);
661 char c = res.FillFlags(filterflags);
663 throw ModuleException("Invalid flag: '" + std::string(1, c) + "'");
665 std::string duration;
666 tokens.GetMiddle(duration);
667 res.duration = ConvToNum<unsigned long>(duration);
669 tokens.GetTrailing(res.reason);
671 /* Hax to allow spaces in the freeform without changing the design of the irc protocol */
672 for (std::string::iterator n = res.freeform.begin(); n != res.freeform.end(); n++)
679 void ModuleFilter::OnSyncNetwork(ProtocolInterface::Server& server)
681 for (std::vector<FilterResult>::iterator i = filters.begin(); i != filters.end(); ++i)
683 FilterResult& filter = *i;
684 if (filter.from_config)
687 server.SendMetaData("filter", EncodeFilter(&filter));
691 void ModuleFilter::OnDecodeMetaData(Extensible* target, const std::string &extname, const std::string &extdata)
693 if ((target == NULL) && (extname == "filter"))
697 FilterResult data = DecodeFilter(extdata);
698 this->AddFilter(data.freeform, data.action, data.reason, data.duration, data.GetFlags());
700 catch (ModuleException& e)
702 ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Error when unserializing filter: " + e.GetReason());
707 FilterResult* ModuleFilter::FilterMatch(User* user, const std::string &text, int flgs)
709 static std::string stripped_text;
710 stripped_text.clear();
712 for (std::vector<FilterResult>::iterator i = filters.begin(); i != filters.end(); ++i)
714 FilterResult* filter = &*i;
716 /* Skip ones that dont apply to us */
717 if (!AppliesToMe(user, filter, flgs))
720 if ((filter->flag_strip_color) && (stripped_text.empty()))
722 stripped_text = text;
723 InspIRCd::StripColor(stripped_text);
726 if (filter->regex->Matches(filter->flag_strip_color ? stripped_text : text))
732 bool ModuleFilter::DeleteFilter(const std::string& freeform, std::string& reason)
734 for (std::vector<FilterResult>::iterator i = filters.begin(); i != filters.end(); i++)
736 if (i->freeform == freeform)
738 reason.assign(i->reason);
747 std::pair<bool, std::string> ModuleFilter::AddFilter(const std::string& freeform, FilterAction type, const std::string& reason, unsigned long duration, const std::string& flgs, bool config)
749 for (std::vector<FilterResult>::iterator i = filters.begin(); i != filters.end(); i++)
751 if (i->freeform == freeform)
753 return std::make_pair(false, "Filter already exists");
759 filters.push_back(FilterResult(RegexEngine, freeform, reason, type, duration, flgs, config));
761 catch (ModuleException &e)
763 ServerInstance->Logs->Log(MODNAME, LOG_DEFAULT, "Error in regular expression '%s': %s", freeform.c_str(), e.GetReason().c_str());
764 return std::make_pair(false, e.GetReason());
766 return std::make_pair(true, "");
769 bool ModuleFilter::StringToFilterAction(const std::string& str, FilterAction& fa)
771 if (stdalgo::string::equalsci(str, "gline"))
773 else if (stdalgo::string::equalsci(str, "zline"))
775 else if (stdalgo::string::equalsci(str, "warn"))
777 else if (stdalgo::string::equalsci(str, "block"))
779 else if (stdalgo::string::equalsci(str, "silent"))
781 else if (stdalgo::string::equalsci(str, "kill"))
783 else if (stdalgo::string::equalsci(str, "shun") && (ServerInstance->XLines->GetFactory("SHUN")))
785 else if (stdalgo::string::equalsci(str, "none"))
793 std::string ModuleFilter::FilterActionToString(FilterAction fa)
797 case FA_GLINE: return "gline";
798 case FA_ZLINE: return "zline";
799 case FA_WARN: return "warn";
800 case FA_BLOCK: return "block";
801 case FA_SILENT: return "silent";
802 case FA_KILL: return "kill";
803 case FA_SHUN: return "shun";
804 default: return "none";
808 void ModuleFilter::ReadFilters()
810 insp::flat_set<std::string> removedfilters;
812 for (std::vector<FilterResult>::iterator filter = filters.begin(); filter != filters.end(); )
814 if (filter->from_config)
816 removedfilters.insert(filter->freeform);
817 delete filter->regex;
818 filter = filters.erase(filter);
822 // The filter is not from the config.
826 ConfigTagList tags = ServerInstance->Config->ConfTags("keyword");
827 for (ConfigIter i = tags.first; i != tags.second; ++i)
829 std::string pattern = i->second->getString("pattern");
830 std::string reason = i->second->getString("reason");
831 std::string action = i->second->getString("action");
832 std::string flgs = i->second->getString("flags");
833 unsigned long duration = i->second->getDuration("duration", 10*60, 1);
838 if (!StringToFilterAction(action, fa))
841 std::pair<bool, std::string> result = static_cast<ModuleFilter*>(this)->AddFilter(pattern, fa, reason, duration, flgs, true);
843 removedfilters.erase(pattern);
845 ServerInstance->Logs->Log(MODNAME, LOG_DEFAULT, "Filter '%s' could not be added: %s", pattern.c_str(), result.second.c_str());
848 if (!removedfilters.empty())
850 for (insp::flat_set<std::string>::const_iterator it = removedfilters.begin(); it != removedfilters.end(); ++it)
851 ServerInstance->SNO->WriteGlobalSno('f', "Removing filter '" + *(it) + "' due to config rehash.");
855 ModResult ModuleFilter::OnStats(Stats::Context& stats)
857 if (stats.GetSymbol() == 's')
859 for (std::vector<FilterResult>::iterator i = filters.begin(); i != filters.end(); i++)
861 stats.AddRow(223, RegexEngine.GetProvider()+":"+i->freeform+" "+i->GetFlags()+" "+FilterActionToString(i->action)+" "+ConvToStr(i->duration)+" :"+i->reason);
863 for (ExemptTargetSet::const_iterator i = exemptedchans.begin(); i != exemptedchans.end(); ++i)
865 stats.AddRow(223, "EXEMPT "+(*i));
867 for (ExemptTargetSet::const_iterator i = exemptednicks.begin(); i != exemptednicks.end(); ++i)
869 stats.AddRow(223, "EXEMPT "+(*i));
872 return MOD_RES_PASSTHRU;
875 void ModuleFilter::OnUnloadModule(Module* mod)
877 // If the regex engine became unavailable or has changed, remove all filters
882 else if (RegexEngine.operator->() != factory)
884 factory = RegexEngine.operator->();
889 MODULE_INIT(ModuleFilter)