X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fmodules%2Fm_chanfilter.cpp;h=14735b13db8d1cc0c52e3353b25024799a2609d1;hb=e2b0f3dc9ef4d56c71d7abda13e6139ca092e387;hp=bae2143d75c000789d400b999a4f12c7822ffe31;hpb=7e843c22e16c81054bad18073d24fe1a07026431;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/modules/m_chanfilter.cpp b/src/modules/m_chanfilter.cpp index bae2143d7..14735b13d 100644 --- a/src/modules/m_chanfilter.cpp +++ b/src/modules/m_chanfilter.cpp @@ -1,145 +1,175 @@ -/* +------------------------------------+ - * | Inspire Internet Relay Chat Daemon | - * +------------------------------------+ +/* + * InspIRCd -- Internet Relay Chat Daemon * - * InspIRCd: (C) 2002-2009 InspIRCd Development Team - * See: http://wiki.inspircd.org/Credits + * Copyright (C) 2019 linuxdaemon + * Copyright (C) 2013, 2017-2020 Sadie Powell + * Copyright (C) 2012-2014 Attila Molnar + * Copyright (C) 2012, 2018 Robby + * Copyright (C) 2009 Daniel De Graaf + * Copyright (C) 2007 Dennis Friis + * Copyright (C) 2006 Oliver Lupton + * Copyright (C) 2005-2006, 2008-2010 Craig Edwards * - * This program is free but copyrighted software; see - * the file COPYING for details. + * This file is part of InspIRCd. InspIRCd is free software: you can + * redistribute it and/or modify it under the terms of the GNU General Public + * License as published by the Free Software Foundation, version 2. * - * --------------------------------------------------- + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS + * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . */ -#define _CRT_SECURE_NO_DEPRECATE -#define _SCL_SECURE_NO_DEPRECATE #include "inspircd.h" -#include "u_listmode.h" +#include "listmode.h" +#include "modules/exemption.h" -/* $ModDesc: Provides channel-specific censor lists (like mode +G but varies from channel to channel) */ -/* $ModDep: ../../include/u_listmode.h */ +enum +{ + // InspIRCd-specific. + RPL_ENDOFSPAMFILTER = 940, + RPL_SPAMFILTER = 941 +}; -/** Handles channel mode +g - */ class ChanFilter : public ListModeBase { public: - ChanFilter(Module* Creator) : ListModeBase(Creator, 'g', "End of channel spamfilter list", 941, 940, false, "chanfilter") { } + unsigned long maxlen; + + ChanFilter(Module* Creator) + : ListModeBase(Creator, "filter", 'g', "End of channel spamfilter list", RPL_SPAMFILTER, RPL_ENDOFSPAMFILTER, false) + { + syntax = ""; + } - virtual bool ValidateParam(User* user, Channel* chan, std::string &word) + bool ValidateParam(User* user, Channel* chan, std::string& word) CXX11_OVERRIDE { - if ((word.length() > 35) || (word.empty())) + if (word.length() > maxlen) { - user->WriteNumeric(935, "%s %s %s :word is too %s for censor list",user->nick.c_str(), chan->name.c_str(), word.c_str(), (word.empty() ? "short" : "long")); + user->WriteNumeric(Numerics::InvalidModeParameter(chan, this, word, "Word is too long for the spamfilter list.")); return false; } return true; } - - virtual bool TellListTooLong(User* user, Channel* chan, std::string &word) - { - user->WriteNumeric(939, "%s %s %s :Channel spamfilter list is full", user->nick.c_str(), chan->name.c_str(), word.c_str()); - return true; - } - - virtual void TellAlreadyOnList(User* user, Channel* chan, std::string &word) - { - user->WriteNumeric(937, "%s %s :The word %s is already on the spamfilter list",user->nick.c_str(), chan->name.c_str(), word.c_str()); - } - - virtual void TellNotSet(User* user, Channel* chan, std::string &word) - { - user->WriteNumeric(938, "%s %s :No such spamfilter word is set",user->nick.c_str(), chan->name.c_str()); - } }; class ModuleChanFilter : public Module { + CheckExemption::EventProvider exemptionprov; ChanFilter cf; bool hidemask; + bool notifyuser; + + ChanFilter::ListItem* Match(User* user, Channel* chan, const std::string& text) + { + ModResult res = CheckExemption::Call(exemptionprov, user, chan, "filter"); + if (!IS_LOCAL(user) || res == MOD_RES_ALLOW) + return NULL; + + ListModeBase::ModeList* list = cf.GetList(chan); + if (!list) + return NULL; + + for (ListModeBase::ModeList::iterator i = list->begin(); i != list->end(); i++) + { + if (InspIRCd::Match(text, i->mask)) + return &*i; + } + + return NULL; + } public: ModuleChanFilter() - : cf(this) + : exemptionprov(this) + , cf(this) { - if (!ServerInstance->Modes->AddMode(&cf)) - throw ModuleException("Could not add new modes!"); - - cf.DoImplements(this); - Implementation eventlist[] = { I_OnChannelDelete, I_OnRehash, I_OnUserPreMessage, I_OnUserPreNotice, I_OnSyncChannel }; - ServerInstance->Modules->Attach(eventlist, this, 5); - - OnRehash(NULL); - ServerInstance->Modules->PublishInterface("ChannelBanList", this); } - virtual void OnRehash(User* user) + void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE { - ConfigReader Conf; - hidemask = Conf.ReadFlag("chanfilter", "hidemask", 0); + ConfigTag* tag = ServerInstance->Config->ConfValue("chanfilter"); + hidemask = tag->getBool("hidemask"); + cf.maxlen = tag->getUInt("maxlen", 35, 10, ModeParser::MODE_PARAM_MAX); + notifyuser = tag->getBool("notifyuser", true); cf.DoRehash(); } - virtual ModResult ProcessMessages(User* user,Channel* chan,std::string &text) + void OnUserPart(Membership* memb, std::string& partmessage, CUList& except_list) CXX11_OVERRIDE { - if (!IS_LOCAL(user) || (CHANOPS_EXEMPT('g') && chan->GetPrefixValue(user) == OP_VALUE)) - return MOD_RES_PASSTHRU; + if (!memb) + return; - modelist* list = cf.extItem.get(chan); + User* user = memb->user; + Channel* chan = memb->chan; + ChanFilter::ListItem* match = Match(user, chan, partmessage); + if (!match) + return; - if (list) + // Match() checks the user is local, we can assume from here + LocalUser* luser = IS_LOCAL(user); + + std::string oldreason(partmessage); + partmessage = "Reason filtered"; + if (!notifyuser) { - for (modelist::iterator i = list->begin(); i != list->end(); i++) - { - if (InspIRCd::Match(text, i->mask)) - { - if (hidemask) - user->WriteNumeric(404, "%s %s :Cannot send to channel (your message contained a censored word)",user->nick.c_str(), chan->name.c_str()); - else - user->WriteNumeric(404, "%s %s %s :Cannot send to channel (your message contained a censored word)",user->nick.c_str(), chan->name.c_str(), i->mask.c_str()); - return MOD_RES_DENY; - } - } + // Send fake part + ClientProtocol::Messages::Part partmsg(memb, oldreason); + ClientProtocol::Event ev(ServerInstance->GetRFCEvents().part, partmsg); + luser->Send(ev); + + // Don't send the user the changed message + except_list.insert(user); + return; } - return MOD_RES_PASSTHRU; + if (hidemask) + user->WriteNumeric(Numerics::CannotSendTo(chan, "Your part message contained a banned phrase and was blocked.")); + else + user->WriteNumeric(Numerics::CannotSendTo(chan, InspIRCd::Format("Your part message contained a banned phrase (%s) and was blocked.", + match->mask.c_str()))); } - virtual ModResult OnUserPreMessage(User* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list) + ModResult OnUserPreMessage(User* user, const MessageTarget& target, MessageDetails& details) CXX11_OVERRIDE { - if (target_type == TYPE_CHANNEL) - { - return ProcessMessages(user,(Channel*)dest,text); - } - return MOD_RES_PASSTHRU; - } + if (target.type != MessageTarget::TYPE_CHANNEL) + return MOD_RES_PASSTHRU; - virtual void OnCleanup(int target_type, void* item) - { - cf.DoCleanup(target_type, item); - } + Channel* chan = target.Get(); + ChanFilter::ListItem* match = Match(user, chan, details.text); + if (match) + { + if (!notifyuser) + { + details.echo_original = true; + return MOD_RES_DENY; + } - virtual ModResult OnUserPreNotice(User* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list) - { - return OnUserPreMessage(user,dest,target_type,text,status,exempt_list); - } + if (hidemask) + user->WriteNumeric(Numerics::CannotSendTo(chan, "Your message to this channel contained a banned phrase and was blocked.")); + else + user->WriteNumeric(Numerics::CannotSendTo(chan, InspIRCd::Format("Your message to this channel contained a banned phrase (%s) and was blocked.", + match->mask.c_str()))); - virtual void OnSyncChannel(Channel* chan, Module* proto, void* opaque) - { - cf.DoSyncChannel(chan, proto, opaque); + return MOD_RES_DENY; + } + return MOD_RES_PASSTHRU; } - virtual Version GetVersion() + Version GetVersion() CXX11_OVERRIDE { - return Version("Provides channel-specific censor lists (like mode +G but varies from channel to channel)", VF_COMMON | VF_VENDOR, API_VERSION); - } + // We don't send any link data if the length is 35 for compatibility with the 2.0 branch. + std::string maxfilterlen; + if (cf.maxlen != 35) + maxfilterlen.assign(ConvToStr(cf.maxlen)); - virtual ~ModuleChanFilter() - { - ServerInstance->Modules->UnpublishInterface("ChannelBanList", this); + return Version("Adds channel mode g (filter) which allows channel operators to define glob patterns for inappropriate phrases that are not allowed to be used in the channel.", VF_VENDOR, maxfilterlen); } };