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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)
{
flags_needed = FLAG_SERVERONLY;
}
CmdResult Handle(User* user, const Params& parameters) CXX11_OVERRIDE
{
if (!user->server->IsULine())
{
// Ulines only
return CMD_FAILURE;
}
Channel* chan = ServerInstance->FindChan(parameters[0]);
if (!chan)
return CMD_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 CMD_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 CMD_SUCCESS;
}
RouteDescriptor GetRouting(User* user, const Params& parameters) CXX11_OVERRIDE
{
return ROUTE_BROADCAST;
}
};
// TODO: add a BoolExtItem to replace this.
class FlagExtItem : public ExtensionItem
{
public:
FlagExtItem(const std::string& key, Module* owner)
: ExtensionItem(key, ExtensionItem::EXT_CHANNEL, owner)
{
}
bool get(const Extensible* container) const
{
return (get_raw(container) != NULL);
}
std::string ToHuman(const Extensible* container, void* item) const CXX11_OVERRIDE
{
// Make the human version more readable.
return "true";
}
std::string ToNetwork(const Extensible* container, void* item) const CXX11_OVERRIDE
{
return "1";
}
void FromNetwork(Extensible* container, const std::string& value) CXX11_OVERRIDE
{
if (value == "1")
set_raw(container, this);
else
unset_raw(container);
}
void set(Extensible* container, bool value)
{
if (value)
set_raw(container, this);
else
unset_raw(container);
}
void unset(Extensible* container)
{
unset_raw(container);
}
void free(Extensible* container, void* item) CXX11_OVERRIDE
{
// nothing to free
}
};
class ModuleTopicLock : public Module
{
CommandSVSTOPIC cmd;
FlagExtItem topiclock;
public:
ModuleTopicLock()
: cmd(this), topiclock("topiclock", this)
{
}
ModResult OnPreTopicChange(User* user, Channel* chan, const std::string &topic) CXX11_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;
}
Version GetVersion() CXX11_OVERRIDE
{
return Version("Implements server-side topic locks and the server-to-server command SVSTOPIC", VF_COMMON | VF_VENDOR);
}
};
MODULE_INIT(ModuleTopicLock)
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