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/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2013, 2017-2019 Sadie Powell <sadie@witchery.services>
* Copyright (C) 2012, 2014-2016 Attila Molnar <attilamolnar@hush.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"
enum
{
// InspIRCd-specific.
ERR_TOPICLOCK = 744
};
class CommandSVSTOPIC : public Command
{
public:
CommandSVSTOPIC(Module* Creator)
: Command(Creator, "SVSTOPIC", 1, 4)
{
access_needed = CmdAccess::SERVER;
}
CmdResult Handle(User* user, const Params& parameters) override
{
if (!user->server->IsService())
{
// Ulines only
return CmdResult::FAILURE;
}
Channel* chan = ServerInstance->Channels.Find(parameters[0]);
if (!chan)
return CmdResult::FAILURE;
if (parameters.size() == 4)
{
// 4 parameter version, set all topic data on the channel to the ones given in the parameters
time_t topicts = ConvToNum<time_t>(parameters[1]);
if (!topicts)
{
ServerInstance->Logs.Log(MODNAME, LOG_DEFAULT, "Received SVSTOPIC with a 0 topicts, dropped.");
return CmdResult::INVALID;
}
chan->SetTopic(user, parameters[3], topicts, ¶meters[2]);
}
else
{
// 1 parameter version, nuke the topic
chan->SetTopic(user, std::string(), 0);
chan->setby.clear();
}
return CmdResult::SUCCESS;
}
RouteDescriptor GetRouting(User* user, const Params& parameters) override
{
return ROUTE_BROADCAST;
}
};
class ModuleTopicLock : public Module
{
private:
CommandSVSTOPIC cmd;
BoolExtItem topiclock;
public:
ModuleTopicLock()
: Module(VF_VENDOR | VF_COMMON, "Allows services to lock the channel topic so that it can not be changed.")
, cmd(this)
, topiclock(this, "topiclock", ExtensionItem::EXT_CHANNEL)
{
}
ModResult OnPreTopicChange(User* user, Channel* chan, const std::string &topic) override
{
// Only fired for local users currently, but added a check anyway
if ((IS_LOCAL(user)) && (topiclock.Get(chan)))
{
user->WriteNumeric(ERR_TOPICLOCK, chan->name, "TOPIC cannot be changed due to topic lock being active on the channel");
return MOD_RES_DENY;
}
return MOD_RES_PASSTHRU;
}
};
MODULE_INIT(ModuleTopicLock)
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