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/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2013, 2019-2024 Sadie Powell <sadie@sadiepowell.dev>
* Copyright (C) 2012, 2016 Attila Molnar <attilamolnar@hush.com>
* Copyright (C) 2012 Robby <robby@chatbelgie.be>
* Copyright (C) 2009 Uli Schlachter <psychon@znc.in>
* Copyright (C) 2007, 2009 Dennis Friis <peavey@inspircd.org>
* Copyright (C) 2006 Craig Edwards <brain@inspircd.org>
*
* 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
{
// From UnrealIRCd.
ERR_NOOPERMOTD = 425,
// From ircd-ratbox.
RPL_OMOTDSTART = 720,
RPL_OMOTD = 721,
RPL_ENDOFOMOTD = 722
};
typedef insp::flat_map<std::string, std::vector<std::string>> MOTDCache;
class CommandOperMOTD final
: public Command
{
public:
std::string file;
MOTDCache motds;
CommandOperMOTD(Module* Creator)
: Command(Creator, "OPERMOTD")
{
access_needed = CmdAccess::OPERATOR;
syntax = { "[<servername>]" };
}
CmdResult Handle(User* user, const Params& parameters) override
{
if (parameters.empty() || irc::equals(parameters[0], ServerInstance->Config->ServerName))
return ShowOperMOTD(user, true);
return CmdResult::SUCCESS;
}
RouteDescriptor GetRouting(User* user, const Params& parameters) override
{
if ((!parameters.empty()) && (parameters[0].find('.') != std::string::npos))
return ROUTE_OPT_UCAST(parameters[0]);
return ROUTE_LOCALONLY;
}
CmdResult ShowOperMOTD(User* user, bool showmissing)
{
if (!user->IsOper())
return CmdResult::SUCCESS; // WTF?
auto motd = motds.find(user->oper->GetConfig()->getString("motd", file, 1));
if (motd == motds.end())
{
if (showmissing)
user->WriteRemoteNumeric(ERR_NOOPERMOTD, "There is no server operator MOTD.");
return CmdResult::SUCCESS;
}
user->WriteRemoteNumeric(RPL_OMOTDSTART, "Server operator MOTD:");
for (const auto& line : motd->second)
user->WriteRemoteNumeric(RPL_OMOTD, line);
user->WriteRemoteNumeric(RPL_ENDOFOMOTD, "End of server operator MOTD.");
return CmdResult::SUCCESS;
}
};
class ModuleOperMOTD final
: public Module
{
private:
CommandOperMOTD cmd;
bool onoper;
void ProcessMOTD(MOTDCache& newmotds, const std::shared_ptr<OperType>& oper, const char* type) const
{
// Don't process the file if it has already been processed.
const std::string motd = oper->GetConfig()->getString("motd", cmd.file);
if (motd.empty() || newmotds.find(motd) != newmotds.end())
return;
auto file = ServerInstance->Config->ReadFile(motd);
if (!file)
{
// We can't process the file if it doesn't exist.
ServerInstance->Logs.Normal(MODNAME, "Unable to read server operator motd for oper {} \"{}\" at {}: {}",
type, oper->GetName(), oper->GetConfig()->source.str(), file.error);
return;
}
// Process the MOTD entry.
auto& newmotd = newmotds[motd];
irc::sepstream linestream(file.contents, '\n', true);
for (std::string line; linestream.GetToken(line); )
{
// Some clients can not handle receiving RPL_OMOTD with an empty
// trailing parameter so if a line is empty we replace it with
// a single space.
InspIRCd::ProcessColors(line);
newmotd.push_back(line.empty() ? " " : line);
}
}
public:
ModuleOperMOTD()
: Module(VF_VENDOR | VF_OPTCOMMON, "Adds the /OPERMOTD command which adds a special message of the day for server operators.")
, cmd(this)
{
}
void OnPostOperLogin(User* user, bool automatic) override
{
if (IS_LOCAL(user) && user->oper->GetConfig()->getBool("automotd", onoper))
cmd.ShowOperMOTD(user, false);
}
void ReadConfig(ConfigStatus& status) override
{
// Compatibility with the v3 config.
const auto& tag = ServerInstance->Config->ConfValue("opermotd");
cmd.file = tag->getString("file", "opermotd", 1);
onoper = tag->getBool("onoper", true);
MOTDCache newmotds;
for (const auto& [_, account] : ServerInstance->Config->OperAccounts)
ProcessMOTD(newmotds, account, "account");
for (const auto& [_, type] : ServerInstance->Config->OperTypes)
ProcessMOTD(newmotds, type, "type");
cmd.motds.swap(newmotds);
}
};
MODULE_INIT(ModuleOperMOTD)
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