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/*
* Copyright (c) 2024 Vaughn Nugent
*
* Library: VNLib
* Package: VNLib.Plugins.Essentials.Accounts.Registration
* File: RevokedTokenStore.cs
*
* RevokedTokenStore.cs is part of VNLib.Plugins.Essentials.Accounts.Registration which is part of the larger
* VNLib collection of libraries and utilities.
*
* VNLib.Plugins.Essentials.Accounts.Registration 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.Registration 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.Linq;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.EntityFrameworkCore;
using VNLib.Utils;
using VNLib.Plugins.Extensions.Loading;
namespace VNLib.Plugins.Essentials.Accounts.Registration.TokenRevocation
{
internal class RevokedTokenStore(IAsyncLazy<DbContextOptions> options)
{
public async Task<bool> IsRevokedAsync(string token, CancellationToken cancellation)
{
await using RegistrationContext context = new (options.Value);
//Select any that match tokens
bool any = await (from t in context.RevokedRegistrationTokens
where t.Token == token
select t)
.AnyAsync(cancellation);
await context.SaveAndCloseAsync(true, cancellation);
return any;
}
public async Task RevokeAsync(string token, CancellationToken cancellation)
{
await using RegistrationContext context = new (options.Value);
//Add to table
context.RevokedRegistrationTokens.Add(new RevokedToken
{
Created = DateTime.UtcNow,
Token = token
});
//Save changes and commit transaction
await context.SaveAndCloseAsync(true, cancellation);
}
/// <summary>
/// Removes expired records from the store
/// </summary>
/// <param name="validFor">The time a token is valid for</param>
/// <param name="cancellation">A token that cancels the async operation</param>
/// <returns>The number of records evicted from the store</returns>
public async Task<ERRNO> CleanTableAsync(TimeSpan validFor, CancellationToken cancellation)
{
DateTime expiredBefore = DateTime.UtcNow.Subtract(validFor);
await using RegistrationContext context = new (options.Value);
//Select any that match tokens
RevokedToken[] expired = await context.RevokedRegistrationTokens.Where(t => t.Created < expiredBefore)
.Select(static t => t)
.ToArrayAsync(cancellation);
context.RevokedRegistrationTokens.RemoveRange(expired);
return await context.SaveAndCloseAsync(true, cancellation);
}
}
}
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