110 lines
3.6 KiB
C#
110 lines
3.6 KiB
C#
// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
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using System.Collections.Generic;
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using System.Linq;
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using System.Net;
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using System.Net.Http;
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using System.Threading.Tasks;
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using System.Web.Http.Controllers;
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using System.Web.Http.Filters;
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namespace System.Web.Http
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{
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public class ExceptionController : ApiController
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{
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public static string ResponseExceptionHeaderKey = "responseExceptionStatusCode";
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public HttpResponseMessage Unavailable()
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{
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throw new HttpResponseException(new HttpResponseMessage(HttpStatusCode.ServiceUnavailable));
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}
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public Task<HttpResponseMessage> AsyncUnavailable()
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{
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throw new HttpResponseException(new HttpResponseMessage(HttpStatusCode.ServiceUnavailable));
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}
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public Task<HttpResponseMessage> AsyncUnavailableDelegate()
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{
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return Task.Factory.StartNew<HttpResponseMessage>(() => { throw new HttpResponseException(new HttpResponseMessage(HttpStatusCode.ServiceUnavailable)); });
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}
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public HttpResponseMessage ArgumentNull()
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{
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throw new ArgumentNullException("foo");
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}
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public Task<HttpResponseMessage> AsyncArgumentNull()
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{
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return Task.Factory.StartNew<HttpResponseMessage>(() => { throw new ArgumentNullException("foo"); });
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}
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[HttpGet]
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public string GetException()
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{
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return "foo";
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}
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[HttpGet]
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public string GetString()
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{
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return "bar";
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}
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public T GenericAction<T>() where T : User
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{
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return null;
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}
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[AuthorizationFilterThrows]
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public void AuthorizationFilter() { }
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[ActionFilterThrows]
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public void ActionFilter() { }
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[ExceptionFilterThrows]
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public void ExceptionFilter() { throw new ArgumentException("exception"); }
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private class AuthorizationFilterThrows : AuthorizeAttribute
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{
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public override void OnAuthorization(HttpActionContext actionContext)
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{
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TryThrowHttpResponseException(actionContext);
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throw new ArgumentException("authorization");
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}
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}
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private class ActionFilterThrows : ActionFilterAttribute
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{
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public override void OnActionExecuting(HttpActionContext actionContext)
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{
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TryThrowHttpResponseException(actionContext);
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throw new ArgumentException("action");
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}
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}
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private class ExceptionFilterThrows : ExceptionFilterAttribute
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{
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public override void OnException(HttpActionExecutedContext actionExecutedContext)
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{
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TryThrowHttpResponseException(actionExecutedContext.ActionContext);
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throw actionExecutedContext.Exception;
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}
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}
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private static void TryThrowHttpResponseException(HttpActionContext actionContext)
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{
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IEnumerable<string> values;
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if (actionContext.ControllerContext.Request.Headers.TryGetValues(ResponseExceptionHeaderKey, out values))
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{
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string statusString = values.First() as string;
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if (!String.IsNullOrEmpty(statusString))
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{
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HttpStatusCode status = (HttpStatusCode)Enum.Parse(typeof(HttpStatusCode), statusString);
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throw new HttpResponseException(actionContext.Request.CreateResponse(status, "HttpResponseExceptionMessage"));
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}
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}
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}
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}
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}
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