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/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
* Copyright (C) 2005-2008 Craig Edwards <craigedwards@brainbox.cc>
* Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
* Copyright (C) 2006 Robin Burchell <robin+git@viroteck.net>
*
* 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"
/** Holds a timed ban
*/
class TimedBan
{
public:
std::string channel;
std::string mask;
time_t expire;
};
typedef std::vector<TimedBan> timedbans;
timedbans TimedBanList;
/** Handle /TBAN
*/
class CommandTban : public Command
{
public:
CommandTban(Module* Creator) : Command(Creator,"TBAN", 3)
{
syntax = "<channel> <duration> <banmask>";
}
CmdResult Handle (const std::vector<std::string> ¶meters, User *user)
{
Channel* channel = ServerInstance->FindChan(parameters[0]);
if (!channel)
{
user->WriteNumeric(ERR_NOSUCHNICK, "%s :No such channel", parameters[0].c_str());
return CMD_FAILURE;
}
int cm = channel->GetPrefixValue(user);
if (cm < HALFOP_VALUE)
{
user->WriteNumeric(ERR_CHANOPRIVSNEEDED, "%s :You do not have permission to set bans on this channel",
channel->name.c_str());
return CMD_FAILURE;
}
TimedBan T;
std::string channelname = parameters[0];
unsigned long duration = InspIRCd::Duration(parameters[1]);
unsigned long expire = duration + ServerInstance->Time();
if (duration < 1)
{
user->WriteNotice("Invalid ban time");
return CMD_FAILURE;
}
std::string mask = parameters[2];
std::vector<std::string> setban;
setban.push_back(parameters[0]);
setban.push_back("+b");
bool isextban = ((mask.size() > 2) && (mask[1] == ':'));
if (!isextban && !InspIRCd::IsValidMask(mask))
mask.append("!*@*");
setban.push_back(mask);
// Pass the user (instead of ServerInstance->FakeClient) to ModeHandler::Process() to
// make it so that the user sets the mode themselves
ServerInstance->Modes->Process(setban, user);
if (ServerInstance->Modes->GetLastParse().empty())
{
user->WriteNotice("Invalid ban mask");
return CMD_FAILURE;
}
CUList tmp;
T.channel = channelname;
T.mask = mask;
T.expire = expire + (IS_REMOTE(user) ? 5 : 0);
TimedBanList.push_back(T);
// If halfop is loaded, send notice to halfops and above, otherwise send to ops and above
ModeHandler* mh = ServerInstance->Modes->FindMode('h', MODETYPE_CHANNEL);
char pfxchar = (mh && mh->name == "halfop") ? '%' : '@';
channel->WriteAllExcept(ServerInstance->FakeClient, true, pfxchar, tmp, "NOTICE %s :%s added a timed ban on %s lasting for %ld seconds.", channel->name.c_str(), user->nick.c_str(), mask.c_str(), duration);
return CMD_SUCCESS;
}
RouteDescriptor GetRouting(User* user, const std::vector<std::string>& parameters)
{
return ROUTE_BROADCAST;
}
};
class BanWatcher : public ModeWatcher
{
public:
BanWatcher(Module* parent)
: ModeWatcher(parent, "ban", MODETYPE_CHANNEL)
{
}
void AfterMode(User* source, User* dest, Channel* chan, const std::string& banmask, bool adding)
{
if (adding)
return;
irc::string listitem = banmask.c_str();
irc::string thischan = chan->name.c_str();
for (timedbans::iterator i = TimedBanList.begin(); i != TimedBanList.end(); ++i)
{
irc::string target = i->mask.c_str();
irc::string tchan = i->channel.c_str();
if ((listitem == target) && (tchan == thischan))
{
TimedBanList.erase(i);
break;
}
}
}
};
class ModuleTimedBans : public Module
{
CommandTban cmd;
BanWatcher banwatcher;
public:
ModuleTimedBans()
: cmd(this)
, banwatcher(this)
{
}
void OnBackgroundTimer(time_t curtime) CXX11_OVERRIDE
{
timedbans expired;
for (timedbans::iterator i = TimedBanList.begin(); i != TimedBanList.end();)
{
if (curtime > i->expire)
{
expired.push_back(*i);
i = TimedBanList.erase(i);
}
else
++i;
}
for (timedbans::iterator i = expired.begin(); i != expired.end(); i++)
{
std::string chan = i->channel;
std::string mask = i->mask;
Channel* cr = ServerInstance->FindChan(chan);
if (cr)
{
std::vector<std::string> setban;
setban.push_back(chan);
setban.push_back("-b");
setban.push_back(mask);
CUList empty;
std::string expiry = "*** Timed ban on " + chan + " expired.";
cr->WriteAllExcept(ServerInstance->FakeClient, true, '@', empty, "NOTICE %s :%s", cr->name.c_str(), expiry.c_str());
ServerInstance->PI->SendChannelNotice(cr, '@', expiry);
ServerInstance->Modes->Process(setban, ServerInstance->FakeClient);
}
}
}
Version GetVersion() CXX11_OVERRIDE
{
return Version("Adds timed bans", VF_COMMON | VF_VENDOR);
}
};
MODULE_INIT(ModuleTimedBans)
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