/*
* InspIRCd -- Internet Relay Chat Daemon
*
+ * Copyright (C) 2019 linuxdaemon <linuxdaemon.irc@gmail.com>
+ * Copyright (C) 2013, 2017-2020 Sadie Powell <sadie@witchery.services>
+ * Copyright (C) 2012-2014 Attila Molnar <attilamolnar@hush.com>
+ * Copyright (C) 2012, 2018 Robby <robby@chatbelgie.be>
* Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
- * Copyright (C) 2008 Pippijn van Steenhoven <pip88nl@gmail.com>
- * Copyright (C) 2007 Robin Burchell <robin+git@viroteck.net>
* Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
- * Copyright (C) 2006 Oliver Lupton <oliverlupton@gmail.com>
- * Copyright (C) 2005 Craig McLure <craig@chatspike.net>
- * Copyright (C) 2005 Craig Edwards <craigedwards@brainbox.cc>
+ * Copyright (C) 2006 Oliver Lupton <om@inspircd.org>
+ * Copyright (C) 2005-2006, 2008-2010 Craig Edwards <brain@inspircd.org>
*
* 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
*/
-/* $ModDesc: Provides channel-specific censor lists (like mode +G but varies from channel to channel) */
-
-#define _CRT_SECURE_NO_DEPRECATE
-#define _SCL_SECURE_NO_DEPRECATE
-
#include "inspircd.h"
#include "listmode.h"
+#include "modules/exemption.h"
+
+enum
+{
+ // InspIRCd-specific.
+ RPL_ENDOFSPAMFILTER = 940,
+ RPL_SPAMFILTER = 941
+};
-/** Handles channel mode +g
- */
class ChanFilter : public ListModeBase
{
public:
- ChanFilter(Module* Creator) : ListModeBase(Creator, "filter", 'g', "End of channel spamfilter list", 941, 940, false, "chanfilter") { }
+ unsigned long maxlen;
- bool ValidateParam(User* user, Channel* chan, std::string &word)
+ ChanFilter(Module* Creator)
+ : ListModeBase(Creator, "filter", 'g', "End of channel spamfilter list", RPL_SPAMFILTER, RPL_ENDOFSPAMFILTER, false)
{
- if ((word.length() > 35) || (word.empty()))
+ syntax = "<pattern>";
+ }
+
+ bool ValidateParam(User* user, Channel* chan, std::string& word) CXX11_OVERRIDE
+ {
+ 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;
}
-
- void 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());
- }
-
- 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());
- }
-
- 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;
- public:
-
- ModuleChanFilter()
- : cf(this)
+ 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;
- void init() CXX11_OVERRIDE
- {
- ServerInstance->Modules->AddService(cf);
+ ListModeBase::ModeList* list = cf.GetList(chan);
+ if (!list)
+ return NULL;
- cf.DoImplements(this);
- Implementation eventlist[] = { I_OnRehash, I_OnUserPreMessage, I_OnSyncChannel };
- ServerInstance->Modules->Attach(eventlist, this, sizeof(eventlist)/sizeof(Implementation));
+ for (ListModeBase::ModeList::iterator i = list->begin(); i != list->end(); i++)
+ {
+ if (InspIRCd::Match(text, i->mask))
+ return &*i;
+ }
+
+ return NULL;
+ }
+
+ public:
- OnRehash(NULL);
+ ModuleChanFilter()
+ : exemptionprov(this)
+ , cf(this)
+ {
}
- void OnRehash(User* user) CXX11_OVERRIDE
+ void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE
{
- hidemask = ServerInstance->Config->ConfValue("chanfilter")->getBool("hidemask");
+ 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();
}
- ModResult ProcessMessages(User* user,Channel* chan,std::string &text)
+ void OnUserPart(Membership* memb, std::string& partmessage, CUList& except_list) CXX11_OVERRIDE
{
- ModResult res = ServerInstance->OnCheckExemption(user,chan,"filter");
+ if (!memb)
+ return;
- if (!IS_LOCAL(user) || res == MOD_RES_ALLOW)
- return MOD_RES_PASSTHRU;
+ User* user = memb->user;
+ Channel* chan = memb->chan;
+ ChanFilter::ListItem* match = Match(user, chan, partmessage);
+ if (!match)
+ return;
- ListModeBase::ModeList* list = cf.GetList(chan);
+ // Match() checks the user is local, we can assume from here
+ LocalUser* luser = IS_LOCAL(user);
- if (list)
+ std::string oldreason(partmessage);
+ partmessage = "Reason filtered";
+ if (!notifyuser)
{
- for (ListModeBase::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())));
}
- ModResult OnUserPreMessage(User* user, void* dest, int target_type, std::string& text, char status, CUList& exempt_list, MessageType msgtype) CXX11_OVERRIDE
+ ModResult OnUserPreMessage(User* user, const MessageTarget& target, MessageDetails& details) CXX11_OVERRIDE
{
- if (target_type == TYPE_CHANNEL)
+ if (target.type != MessageTarget::TYPE_CHANNEL)
+ return MOD_RES_PASSTHRU;
+
+ Channel* chan = target.Get<Channel>();
+ ChanFilter::ListItem* match = Match(user, chan, details.text);
+ if (match)
{
- return ProcessMessages(user,(Channel*)dest,text);
+ if (!notifyuser)
+ {
+ details.echo_original = true;
+ return MOD_RES_DENY;
+ }
+
+ 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())));
+
+ return MOD_RES_DENY;
}
return MOD_RES_PASSTHRU;
}
- void OnSyncChannel(Channel* chan, Module* proto, void* opaque) CXX11_OVERRIDE
- {
- cf.DoSyncChannel(chan, proto, opaque);
- }
-
Version GetVersion() CXX11_OVERRIDE
{
- return Version("Provides channel-specific censor lists (like mode +G but varies from channel to channel)", VF_VENDOR);
+ // 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));
+
+ 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);
}
};