X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fmodules%2Fm_blockcaps.cpp;h=0acdc4d6c0dc7ea8a4f86846d37b9cf688454481;hb=3151d60c1ecc9462e4c335282ee6c31672f45111;hp=0d76c9c84d914cc82272b3f4fcd3ebd19eafea1c;hpb=6bc3d71946b339a5a10ca621b029fe8a5b180d68;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/modules/m_blockcaps.cpp b/src/modules/m_blockcaps.cpp index 0d76c9c84..0acdc4d6c 100644 --- a/src/modules/m_blockcaps.cpp +++ b/src/modules/m_blockcaps.cpp @@ -1,161 +1,132 @@ -/* +------------------------------------+ - * | Inspire Internet Relay Chat Daemon | - * +------------------------------------+ +/* + * InspIRCd -- Internet Relay Chat Daemon * - * InspIRCd: (C) 2002-2007 InspIRCd Development Team - * See: http://www.inspircd.org/wiki/index.php/Credits + * Copyright (C) 2013, 2017-2018, 2020 Sadie Powell + * Copyright (C) 2012-2014 Attila Molnar + * Copyright (C) 2012 Robby + * Copyright (C) 2009-2010 Daniel De Graaf + * Copyright (C) 2008 Thomas Stagner + * Copyright (C) 2008 Robin Burchell + * Copyright (C) 2007 Dennis Friis + * Copyright (C) 2006, 2008-2009 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 . */ -#include "users.h" -#include "channels.h" -#include "modules.h" -#include "inspircd.h" -#include "mode.h" - -/* $ModDesc: Provides support for channel mode +P to block all-CAPS channel messages and notices */ - - -/** Handles the +P channel mode - */ -class BlockCaps : public ModeHandler -{ - public: - BlockCaps(InspIRCd* Instance) : ModeHandler(Instance, 'P', 0, 0, false, MODETYPE_CHANNEL, false) { } - - ModeAction OnModeChange(userrec* source, userrec* dest, chanrec* channel, std::string ¶meter, bool adding) - { - if (adding) - { - if (!channel->IsModeSet('P')) - { - channel->SetMode('P',true); - return MODEACTION_ALLOW; - } - } - else - { - if (channel->IsModeSet('P')) - { - channel->SetMode('P',false); - return MODEACTION_ALLOW; - } - } - return MODEACTION_DENY; - } -}; +#include "inspircd.h" +#include "modules/exemption.h" class ModuleBlockCAPS : public Module { - BlockCaps* bc; + CheckExemption::EventProvider exemptionprov; + SimpleChannelModeHandler bc; unsigned int percent; unsigned int minlen; + std::bitset lowercase; + std::bitset uppercase; + public: - - ModuleBlockCAPS(InspIRCd* Me) : Module::Module(Me) + ModuleBlockCAPS() + : exemptionprov(this) + , bc(this, "blockcaps", 'B') { - OnRehash(""); - bc = new BlockCaps(ServerInstance); - ServerInstance->AddMode(bc, 'P'); } - void Implements(char* List) + void On005Numeric(std::map& tokens) CXX11_OVERRIDE { - List[I_OnUserPreMessage] = List[I_OnUserPreNotice] = List[I_OnRehash] = 1; + tokens["EXTBAN"].push_back('B'); } - virtual void OnRehash(const std::string ¶m) + ModResult OnUserPreMessage(User* user, const MessageTarget& target, MessageDetails& details) CXX11_OVERRIDE { - ReadConf(); - } + if (target.type == MessageTarget::TYPE_CHANNEL) + { + if (!IS_LOCAL(user)) + return MOD_RES_PASSTHRU; - virtual int OnUserPreMessage(userrec* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list) - { - if (text.size() < minlen) - return 0; + Channel* c = target.Get(); + ModResult res = CheckExemption::Call(exemptionprov, user, c, "blockcaps"); - if (target_type == TYPE_CHANNEL) - { - chanrec* c = (chanrec*)dest; + if (res == MOD_RES_ALLOW) + return MOD_RES_PASSTHRU; - if (c->IsModeSet('P')) + if (!c->GetExtBanStatus(user, 'B').check(!c->IsModeSet(bc))) { - int caps = 0; - for (std::string::iterator i = text.begin(); i != text.end(); i++) + // If the message is a CTCP then we skip it unless it is + // an ACTION in which case we just check against the body. + std::string ctcpname; + std::string message(details.text); + if (details.IsCTCP(ctcpname, message)) + { + // If the CTCP is not an action then skip it. + if (!irc::equals(ctcpname, "ACTION")) + return MOD_RES_PASSTHRU; + } + + // If the message is shorter than the minimum length + // then we don't need to do anything else. + size_t length = message.length(); + if (length < minlen) + return MOD_RES_PASSTHRU; + + // Count the characters to see how many upper case and + // ignored (non upper or lower) characters there are. + size_t upper = 0; + for (std::string::const_iterator iter = message.begin(); iter != message.end(); ++iter) { - if ( (*i >= 'A') && (*i <= 'Z')) - caps++; + unsigned char chr = static_cast(*iter); + if (uppercase.test(chr)) + upper += 1; + else if (!lowercase.test(chr)) + length -= 1; } - if ( (caps * 100 / text.size()) >= percent ) + + // Calculate the percentage which is upper case. If the + // message was entirely symbols then it can't contain + // any upper case letters. + if (length > 0 && round((upper * 100) / length) >= percent) { - user->WriteServ( "404 %s %s :Can't send all-CAPS to channel (+P set)", user->nick, c->name); - return 1; + const std::string msg = InspIRCd::Format("Your message cannot contain %d%% or more capital letters if it's longer than %d characters", percent, minlen); + user->WriteNumeric(Numerics::CannotSendTo(c, msg)); + return MOD_RES_DENY; } } } - return 0; - } - - virtual int OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list) - { - return OnUserPreMessage(user,dest,target_type,text,status,exempt_list); - } - - void ReadConf() - { - ConfigReader Conf(ServerInstance); - percent = Conf.ReadInteger("blockcaps", "percent", "100", 0, true); - minlen = Conf.ReadInteger("blockcaps", "minlen", "0", 0, true); - if (percent < 0 || percent > 100) - { - ServerInstance->Log(DEFAULT, " out of range, setting to default of 100."); - percent = 100; - } - if (minlen < 0 || minlen > MAXBUF-1) - { - ServerInstance->Log(DEFAULT, " out of range, setting to default of 0."); - minlen = 0; - } + return MOD_RES_PASSTHRU; } - virtual ~ModuleBlockCAPS() + void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE { - ServerInstance->Modes->DelMode(bc); - DELETE(bc); + ConfigTag* tag = ServerInstance->Config->ConfValue("blockcaps"); + percent = tag->getUInt("percent", 100, 1, 100); + minlen = tag->getUInt("minlen", 1, 1, ServerInstance->Config->Limits.MaxLine); + + lowercase.reset(); + const std::string lower = tag->getString("lowercase", "abcdefghijklmnopqrstuvwxyz"); + for (std::string::const_iterator iter = lower.begin(); iter != lower.end(); ++iter) + lowercase.set(static_cast(*iter)); + + uppercase.reset(); + const std::string upper = tag->getString("uppercase", tag->getString("capsmap", "ABCDEFGHIJKLMNOPQRSTUVWXYZ", 1)); + for (std::string::const_iterator iter = upper.begin(); iter != upper.end(); ++iter) + uppercase.set(static_cast(*iter)); } - virtual Version GetVersion() + Version GetVersion() CXX11_OVERRIDE { - return Version(1,1,0,0,VF_COMMON|VF_VENDOR,API_VERSION); + return Version("Adds channel mode B (blockcaps) which allows channels to block messages which are excessively capitalised.", VF_VENDOR); } }; - -class ModuleBlockCAPSFactory : public ModuleFactory -{ - public: - ModuleBlockCAPSFactory() - { - } - - ~ModuleBlockCAPSFactory() - { - } - - virtual Module * CreateModule(InspIRCd* Me) - { - return new ModuleBlockCAPS(Me); - } - -}; - - -extern "C" void * init_module( void ) -{ - return new ModuleBlockCAPSFactory; -} +MODULE_INIT(ModuleBlockCAPS)