X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fmodules%2Fm_blockcaps.cpp;h=3bf9c98d0940ab44354cffb481359b6b0c95f103;hb=e2b0f3dc9ef4d56c71d7abda13e6139ca092e387;hp=6ebb659b61dae81e7f8fade02e64724184847393;hpb=7e4dec158b57f5738a063557f2c487e4b2f714e7;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/modules/m_blockcaps.cpp b/src/modules/m_blockcaps.cpp index 6ebb659b6..3bf9c98d0 100644 --- a/src/modules/m_blockcaps.cpp +++ b/src/modules/m_blockcaps.cpp @@ -1,121 +1,133 @@ -/* +------------------------------------+ - * | Inspire Internet Relay Chat Daemon | - * +------------------------------------+ +/* + * InspIRCd -- Internet Relay Chat Daemon * - * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev. - * E-mail: - * - * - * - * - * Written by Craig Edwards, Craig McLure, and others. - * This program is free but copyrighted software; see - * the file COPYING for details. + * 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 + * Copyright (C) 2006 Oliver Lupton * - * --------------------------------------------------- + * 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 "helperfuncs.h" -/* $ModDesc: Provides support for unreal-style channel mode +c */ +#include "inspircd.h" +#include "modules/exemption.h" class ModuleBlockCAPS : public Module { - Server *Srv; + CheckExemption::EventProvider exemptionprov; + SimpleChannelModeHandler bc; + unsigned int percent; + unsigned int minlen; + std::bitset lowercase; + std::bitset uppercase; + public: - - ModuleBlockCAPS(Server* Me) : Module::Module(Me) + ModuleBlockCAPS() + : exemptionprov(this) + , bc(this, "blockcaps", 'B') { - Srv = Me; - Srv->AddExtendedMode('P', MT_CHANNEL, false, 0, 0); } - void Implements(char* List) + void On005Numeric(std::map& tokens) CXX11_OVERRIDE { - List[I_On005Numeric] = List[I_OnUserPreMessage] = List[I_OnUserPreNotice] = List[I_OnExtendedMode] = 1; + tokens["EXTBAN"].push_back('B'); } - virtual void On005Numeric(std::string &output) - { - InsertMode(output, "P", 4); - } - - virtual int OnUserPreMessage(userrec* user,void* dest,int target_type, std::string &text, char status) + ModResult OnUserPreMessage(User* user, const MessageTarget& target, MessageDetails& details) CXX11_OVERRIDE { - if (target_type == TYPE_CHANNEL) + if (target.type == MessageTarget::TYPE_CHANNEL) { - chanrec* c = (chanrec*)dest; + if (!IS_LOCAL(user)) + return MOD_RES_PASSTHRU; + + Channel* c = target.Get(); + ModResult res = CheckExemption::Call(exemptionprov, user, c, "blockcaps"); - if (c->IsCustomModeSet('P')) + if (res == MOD_RES_ALLOW) + return MOD_RES_PASSTHRU; + + if (!c->GetExtBanStatus(user, 'B').check(!c->IsModeSet(bc))) { - for(unsigned int i = 0; i < text.length(); 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) + { + unsigned char chr = static_cast(*iter); + if (uppercase.test(chr)) + upper += 1; + else if (!lowercase.test(chr)) + length -= 1; + } + + // 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) { - if((text[i] < 'A') || (text[i] > 'Z')) - { - return 0; - } + 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; } - - WriteServ(user->fd, "404 %s %s :Can't send all-CAPS to channel (+P set)", user->nick, c->name); - return 1; } } - return 0; - } - - virtual int OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text, char status) - { - return OnUserPreMessage(user,dest,target_type,text,status); - } - - virtual int OnExtendedMode(userrec* user, void* target, char modechar, int type, bool mode_on, string_list ¶ms) - { - // check if this is our mode character... - if ((modechar == 'P') && (type == MT_CHANNEL)) - { - log(DEBUG,"Allowing P change"); - return 1; - } - else - { - return 0; - } + return MOD_RES_PASSTHRU; } - virtual ~ModuleBlockCAPS() - { - } - - virtual Version GetVersion() + void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE { - return Version(1,0,0,0,VF_STATIC|VF_VENDOR); - } -}; + 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)); -class ModuleBlockCAPSFactory : public ModuleFactory -{ - public: - ModuleBlockCAPSFactory() - { - } - - ~ModuleBlockCAPSFactory() - { + 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 Module * CreateModule(Server* Me) + + Version GetVersion() CXX11_OVERRIDE { - return new ModuleBlockCAPS(Me); + return Version("Adds channel mode B (blockcaps) which allows channels to block messages which are excessively capitalised.", VF_VENDOR); } - }; - -extern "C" void * init_module( void ) -{ - return new ModuleBlockCAPSFactory; -} +MODULE_INIT(ModuleBlockCAPS)