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/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2006, 2008 Craig Edwards <craigedwards@brainbox.cc>
* Copyright (C) 2006-2007 Dennis Friis <peavey@inspircd.org>
* Copyright (C) 2007 Robin Burchell <robin+git@viroteck.net>
* Copyright (C) 2006 Oliver Lupton <oliverlupton@gmail.com>
*
* 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 "inspircd.h"
/** Handles the +B channel mode
*/
class BlockCaps : public SimpleChannelModeHandler
{
public:
BlockCaps(Module* Creator) : SimpleChannelModeHandler(Creator, "blockcaps", 'B') { }
};
class ModuleBlockCAPS : public Module
{
BlockCaps bc;
int percent;
unsigned int minlen;
char capsmap[256];
public:
ModuleBlockCAPS() : bc(this)
{
}
void init() CXX11_OVERRIDE
{
ServerInstance->Modules->AddService(bc);
}
void On005Numeric(std::map<std::string, std::string>& tokens) CXX11_OVERRIDE
{
tokens["EXTBAN"].push_back('B');
}
ModResult OnUserPreMessage(User* user, void* dest, int target_type, std::string& text, char status, CUList& exempt_list, MessageType msgtype) CXX11_OVERRIDE
{
if (target_type == TYPE_CHANNEL)
{
if ((!IS_LOCAL(user)) || (text.length() < minlen))
return MOD_RES_PASSTHRU;
Channel* c = (Channel*)dest;
ModResult res = ServerInstance->OnCheckExemption(user,c,"blockcaps");
if (res == MOD_RES_ALLOW)
return MOD_RES_PASSTHRU;
if (!c->GetExtBanStatus(user, 'B').check(!c->IsModeSet(bc)))
{
int caps = 0;
const char* actstr = "\1ACTION ";
int act = 0;
for (std::string::iterator i = text.begin(); i != text.end(); i++)
{
/* Smart fix for suggestion from Jobe, ignore CTCP ACTION (part of /ME) */
if (*actstr && *i == *actstr++ && act != -1)
{
act++;
continue;
}
else
act = -1;
caps += capsmap[(unsigned char)*i];
}
if ( ((caps*100)/(int)text.length()) >= percent )
{
user->WriteNumeric(ERR_CANNOTSENDTOCHAN, "%s %s :Your message cannot contain more than %d%% capital letters if it's longer than %d characters", user->nick.c_str(), c->name.c_str(), percent, minlen);
return MOD_RES_DENY;
}
}
}
return MOD_RES_PASSTHRU;
}
void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE
{
ConfigTag* tag = ServerInstance->Config->ConfValue("blockcaps");
percent = tag->getInt("percent", 100, 1, 100);
minlen = tag->getInt("minlen", 1, 1, ServerInstance->Config->Limits.MaxLine);
std::string hmap = tag->getString("capsmap", "ABCDEFGHIJKLMNOPQRSTUVWXYZ");
memset(capsmap, 0, sizeof(capsmap));
for (std::string::iterator n = hmap.begin(); n != hmap.end(); n++)
capsmap[(unsigned char)*n] = 1;
}
Version GetVersion() CXX11_OVERRIDE
{
return Version("Provides support to block all-CAPS channel messages and notices", VF_VENDOR);
}
};
MODULE_INIT(ModuleBlockCAPS)
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