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/*
* Copyright (c) 2022 Vaughn Nugent
*
* Library: VNLib
* Package: VNLib.Plugins.Essentials.Accounts
* File: KeepAliveEndpoint.cs
*
* KeepAliveEndpoint.cs is part of VNLib.Plugins.Essentials.Accounts which is part of the larger
* VNLib collection of libraries and utilities.
*
* VNLib.Plugins.Essentials.Accounts is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* VNLib.Plugins.Essentials.Accounts 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see https://www.gnu.org/licenses/.
*/
using System;
using System.Net;
using System.Text.Json;
using System.Collections.Generic;
using VNLib.Utils.Extensions;
using VNLib.Plugins.Essentials.Endpoints;
using VNLib.Plugins.Essentials.Extensions;
using VNLib.Plugins.Extensions.Loading;
namespace VNLib.Plugins.Essentials.Accounts.Endpoints
{
[ConfigurationName("keepalive_endpoint")]
internal sealed class KeepAliveEndpoint : ProtectedWebEndpoint
{
readonly TimeSpan tokenRegenTime;
/*
* Endpoint does not use a log, so IniPathAndLog is never called
* and path verification happens verbosly
*/
public KeepAliveEndpoint(PluginBase pbase, IReadOnlyDictionary<string, JsonElement> config)
{
string? path = config["path"].GetString();
tokenRegenTime = config["token_refresh_sec"].GetTimeSpan(TimeParseType.Seconds);
InitPathAndLog(path, pbase.Log);
}
protected override VfReturnType Get(HttpEntity entity)
{
//Return okay
entity.CloseResponse(HttpStatusCode.OK);
return VfReturnType.VirtualSkip;
}
//Allow post to update user's credentials
protected override VfReturnType Post(HttpEntity entity)
{
//Get the last token update
DateTimeOffset lastTokenUpdate = entity.Session.LastTokenUpgrade();
//See if its expired
if (lastTokenUpdate.Add(tokenRegenTime) < entity.RequestedTimeUtc)
{
//if so updaet token
WebMessage webm = new()
{
Token = entity.RegenerateClientToken(),
Success = true
};
//Send the update message to the client
entity.CloseResponse(webm);
return VfReturnType.VirtualSkip;
}
//Return okay
entity.CloseResponse(HttpStatusCode.OK);
return VfReturnType.VirtualSkip;
}
}
}
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