inspircd/include/modules/ircv3_servertime.h
2024-06-07 10:37:56 +01:00

107 lines
3.2 KiB
C++

/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2018-2019, 2021-2023 Sadie Powell <sadie@witchery.services>
* Copyright (C) 2018 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/>.
*/
#pragma once
#include "timeutils.h"
namespace IRCv3
{
namespace ServerTime
{
class Manager;
class API;
/** Format a unix timestamp into the format used by server-time.
* @param secs UNIX timestamp to format.
* @param millisecs Number of milliseconds to format.
* @return Time in server-time format, as a string.
*/
inline std::string FormatTime(time_t secs, long millisecs = 0)
{
std::string timestr = Time::ToString(secs, "%Y-%m-%dT%H:%M:%S.Z", true);
timestr.insert(20, INSP_FORMAT("{:03}", millisecs));
return timestr;
}
}
}
/** Implements manipulating the server time on messages.
* A timestamp can be attached to outgoing client protocol messages to indicate the time when the message
* was generated by us. If a message has server time attached then recipient clients who have negotiated
* the appropriate protocol extension will receive it.
*/
class IRCv3::ServerTime::Manager
: public DataProvider
{
protected:
ClientProtocol::MessageTagProvider* tagprov;
public:
/** Constructor.
* @param mod Module that owns the Manager.
*/
Manager(Module* mod)
: DataProvider(mod, "servertimeapi")
{
}
/** Set the server time on a message.
* @param msg Message to set the time on. No-op if the message already has server time set.
* @param ts Timestamp to set.
*/
void Set(ClientProtocol::Message& msg, const timespec& ts)
{
Set(msg, FormatTime(ts.tv_sec, ts.tv_nsec / 1'000'000));
}
/** Set the server time on a message.
* @param msg Message to set the time on. No-op if the message already has server time set.
* @param secs UNIX timestamp to set.
* @param millisecs Number of milliseconds to set.
*/
void Set(ClientProtocol::Message& msg, time_t secs, long millisecs = 0)
{
Set(msg, FormatTime(secs, millisecs));
}
/** Set the server time on a message.
* @param msg Message to set the time on. No-op if the message already has server time set.
* @param timestr Timestamp to set. Must be in server time format.
* The FormatTime() function can be used to convert unix timestamps into the required format.
*/
void Set(ClientProtocol::Message& msg, const std::string& timestr)
{
msg.AddTag("time", tagprov, timestr);
}
};
/** Server time API. Use this to access the Manager.
*/
class IRCv3::ServerTime::API final
: public dynamic_reference_nocheck<Manager>
{
public:
API(Module* mod)
: dynamic_reference_nocheck<Manager>(mod, "servertimeapi")
{
}
};