68 lines
3.0 KiB
C#
68 lines
3.0 KiB
C#
// Copyright (c) .NET Foundation. All rights reserved.
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// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
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using System.Linq;
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using System.Threading.Tasks;
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namespace Microsoft.AspNetCore.Authorization
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{
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/// <summary>
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/// Base class for authorization handlers that need to be called for a specific requirement type.
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/// </summary>
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/// <typeparam name="TRequirement">The type of the requirement to handle.</typeparam>
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public abstract class AuthorizationHandler<TRequirement> : IAuthorizationHandler
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where TRequirement : IAuthorizationRequirement
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{
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/// <summary>
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/// Makes a decision if authorization is allowed.
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/// </summary>
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/// <param name="context">The authorization context.</param>
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public virtual async Task HandleAsync(AuthorizationHandlerContext context)
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{
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foreach (var req in context.Requirements.OfType<TRequirement>())
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{
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await HandleRequirementAsync(context, req);
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}
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}
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/// <summary>
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/// Makes a decision if authorization is allowed based on a specific requirement.
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/// </summary>
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/// <param name="context">The authorization context.</param>
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/// <param name="requirement">The requirement to evaluate.</param>
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protected abstract Task HandleRequirementAsync(AuthorizationHandlerContext context, TRequirement requirement);
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}
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/// <summary>
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/// Base class for authorization handlers that need to be called for specific requirement and
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/// resource types.
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/// </summary>
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/// <typeparam name="TRequirement">The type of the requirement to evaluate.</typeparam>
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/// <typeparam name="TResource">The type of the resource to evaluate.</typeparam>
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public abstract class AuthorizationHandler<TRequirement, TResource> : IAuthorizationHandler
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where TRequirement : IAuthorizationRequirement
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{
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/// <summary>
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/// Makes a decision if authorization is allowed.
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/// </summary>
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/// <param name="context">The authorization context.</param>
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public virtual async Task HandleAsync(AuthorizationHandlerContext context)
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{
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if (context.Resource is TResource)
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{
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foreach (var req in context.Requirements.OfType<TRequirement>())
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{
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await HandleRequirementAsync(context, req, (TResource)context.Resource);
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}
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}
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}
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/// <summary>
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/// Makes a decision if authorization is allowed based on a specific requirement and resource.
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/// </summary>
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/// <param name="context">The authorization context.</param>
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/// <param name="requirement">The requirement to evaluate.</param>
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/// <param name="resource">The resource to evaluate.</param>
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protected abstract Task HandleRequirementAsync(AuthorizationHandlerContext context, TRequirement requirement, TResource resource);
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}
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} |