-/* +------------------------------------+
- * | Inspire Internet Relay Chat Daemon |
- * +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
*
- * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
- * E-mail:
- * <brain@chatspike.net>
- * <Craig@chatspike.net>
- * <omster@gmail.com>
- *
- * 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 <sadie@witchery.services>
+ * Copyright (C) 2012-2014 Attila Molnar <attilamolnar@hush.com>
+ * Copyright (C) 2012 Robby <robby@chatbelgie.be>
+ * Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
+ * Copyright (C) 2008 Thomas Stagner <aquanight@inspircd.org>
+ * Copyright (C) 2008 Robin Burchell <robin+git@viroteck.net>
+ * Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
+ * Copyright (C) 2006, 2008-2009 Craig Edwards <brain@inspircd.org>
+ * Copyright (C) 2006 Oliver Lupton <om@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
+ * 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 <http://www.gnu.org/licenses/>.
*/
-#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 */
-
-
-
-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 "modules/exemption.h"
class ModuleBlockCAPS : public Module
{
-
- BlockCaps* bc;
-public:
-
- ModuleBlockCAPS(InspIRCd* Me) : Module::Module(Me)
- {
-
- bc = new BlockCaps(ServerInstance);
- ServerInstance->AddMode(bc, 'P');
- }
+ CheckExemption::EventProvider exemptionprov;
+ SimpleChannelModeHandler bc;
+ unsigned int percent;
+ unsigned int minlen;
+ std::bitset<UCHAR_MAX> lowercase;
+ std::bitset<UCHAR_MAX> uppercase;
- void Implements(char* List)
+public:
+ ModuleBlockCAPS()
+ : exemptionprov(this)
+ , bc(this, "blockcaps", 'B')
{
- List[I_On005Numeric] = List[I_OnUserPreMessage] = List[I_OnUserPreNotice] = 1;
}
- virtual void On005Numeric(std::string &output)
+ void On005Numeric(std::map<std::string, std::string>& tokens) CXX11_OVERRIDE
{
- ServerInstance->Modes->InsertMode(output, "P", 4);
+ tokens["EXTBAN"].push_back('B');
}
- 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;
- if (c->IsModeSet('P'))
+ Channel* c = target.Get<Channel>();
+ ModResult res = CheckExemption::Call(exemptionprov, user, c, "blockcaps");
+
+ if (res == MOD_RES_ALLOW)
+ return MOD_RES_PASSTHRU;
+
+ if (!c->GetExtBanStatus(user, 'B').check(!c->IsModeSet(bc)))
{
- const char* i = text.c_str();
- for (; *i; 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 != ' ') && (*i != '\t')) && ((*i < 'A') || (*i > 'Z')))
- {
- return 0;
- }
+ unsigned char chr = static_cast<unsigned char>(*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)
+ {
+ 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;
}
-
- user->WriteServ( "404 %s %s :Can't send all-CAPS to channel (+P set)", user->nick, c->name);
- return 1;
}
}
- return 0;
+ return MOD_RES_PASSTHRU;
}
-
- virtual int OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text, char status)
- {
- return OnUserPreMessage(user,dest,target_type,text,status);
- }
-
- virtual ~ModuleBlockCAPS()
- {
- DELETE(bc);
- }
-
- virtual Version GetVersion()
- {
- return Version(1,0,0,0,VF_STATIC|VF_VENDOR);
- }
-};
-
-class ModuleBlockCAPSFactory : public ModuleFactory
-{
- public:
- ModuleBlockCAPSFactory()
+ void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE
{
+ 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<unsigned char>(*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<unsigned char>(*iter));
}
-
- ~ModuleBlockCAPSFactory()
- {
- }
-
- virtual Module * CreateModule(InspIRCd* 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)
projects / user / henk / code / inspircd.git / blobdiff