Kyoo/Kyoo.Abstractions/Models/Attributes/Permission/PartialPermissionAttribute.cs
2021-09-08 20:57:38 +02:00

89 lines
3.2 KiB
C#

// Kyoo - A portable and vast media library solution.
// Copyright (c) Kyoo.
//
// See AUTHORS.md and LICENSE file in the project root for full license information.
//
// Kyoo 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, either version 3 of the License, or
// any later version.
//
// Kyoo 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 Kyoo. If not, see <https://www.gnu.org/licenses/>.
using System;
using Kyoo.Abstractions.Controllers;
using Microsoft.AspNetCore.Mvc.Filters;
using Microsoft.Extensions.DependencyInjection;
namespace Kyoo.Abstractions.Models.Permissions
{
/// <summary>
/// Specify one part of a permissions needed for the API (the kind or the type).
/// </summary>
[AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, AllowMultiple = true)]
public class PartialPermissionAttribute : Attribute, IFilterFactory
{
/// <summary>
/// The needed permission type.
/// </summary>
public string Type { get; }
/// <summary>
/// The needed permission kind.
/// </summary>
public Kind Kind { get; }
/// <summary>
/// Ask a permission to run an action.
/// </summary>
/// <remarks>
/// With this attribute, you can only specify a type or a kind.
/// To have a valid permission attribute, you must specify the kind and the permission using two attributes.
/// Those attributes can be dispatched at different places (one on the class, one on the method for example).
/// If you don't put exactly two of those attributes, the permission attribute will be ill-formed and will
/// lead to unspecified behaviors.
/// </remarks>
/// <param name="type">
/// The type of the action
/// (if the type ends with api, it will be removed. This allow you to use nameof(YourApi)).
/// </param>
public PartialPermissionAttribute(string type)
{
if (type.EndsWith("API", StringComparison.OrdinalIgnoreCase))
type = type[..^3];
Type = type.ToLower();
}
/// <summary>
/// Ask a permission to run an action.
/// </summary>
/// <remarks>
/// With this attribute, you can only specify a type or a kind.
/// To have a valid permission attribute, you must specify the kind and the permission using two attributes.
/// Those attributes can be dispatched at different places (one on the class, one on the method for example).
/// If you don't put exactly two of those attributes, the permission attribute will be ill-formed and will
/// lead to unspecified behaviors.
/// </remarks>
/// <param name="permission">The kind of permission needed.</param>
public PartialPermissionAttribute(Kind permission)
{
Kind = permission;
}
/// <inheritdoc />
public IFilterMetadata CreateInstance(IServiceProvider serviceProvider)
{
return serviceProvider.GetRequiredService<IPermissionValidator>().Create(this);
}
/// <inheritdoc />
public bool IsReusable => true;
}
}