+/*
+ * 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)