jellyfin/Jellyfin.Server/Filters/SecurityRequirementsOperationFilter.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using Jellyfin.Api.Constants;
using Microsoft.AspNetCore.Authorization;
using Microsoft.OpenApi.Models;
using Swashbuckle.AspNetCore.SwaggerGen;
namespace Jellyfin.Server.Filters
{
/// <summary>
/// Security requirement operation filter.
/// </summary>
public class SecurityRequirementsOperationFilter : IOperationFilter
{
/// <inheritdoc />
public void Apply(OpenApiOperation operation, OperationFilterContext context)
{
var requiredScopes = new List<string>();
// Add all method scopes.
foreach (var attribute in context.MethodInfo.GetCustomAttributes(true))
{
if (attribute is AuthorizeAttribute authorizeAttribute
&& authorizeAttribute.Policy != null
&& !requiredScopes.Contains(authorizeAttribute.Policy, StringComparer.Ordinal))
{
requiredScopes.Add(authorizeAttribute.Policy);
}
}
// Add controller scopes if any.
var controllerAttributes = context.MethodInfo.DeclaringType?.GetCustomAttributes(true);
if (controllerAttributes != null)
{
foreach (var attribute in controllerAttributes)
{
if (attribute is AuthorizeAttribute authorizeAttribute
&& authorizeAttribute.Policy != null
&& !requiredScopes.Contains(authorizeAttribute.Policy, StringComparer.Ordinal))
{
requiredScopes.Add(authorizeAttribute.Policy);
}
}
}
if (requiredScopes.Count != 0)
{
if (!operation.Responses.ContainsKey("401"))
{
operation.Responses.Add("401", new OpenApiResponse { Description = "Unauthorized" });
}
if (!operation.Responses.ContainsKey("403"))
{
operation.Responses.Add("403", new OpenApiResponse { Description = "Forbidden" });
}
var scheme = new OpenApiSecurityScheme
{
Reference = new OpenApiReference
{
Type = ReferenceType.SecurityScheme,
Id = AuthenticationSchemes.CustomAuthentication
}
};
operation.Security = new List<OpenApiSecurityRequirement>
{
new OpenApiSecurityRequirement
{
[scheme] = requiredScopes
}
};
}
}
}
}