106 lines
4.0 KiB
C#
106 lines
4.0 KiB
C#
using System;
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using System.Web;
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using Umbraco.Core;
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using Umbraco.Core.Logging;
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using Umbraco.Web.Composing;
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using Umbraco.Web.Routing;
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namespace Umbraco.Web
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{
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/// <summary>
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/// Represents the main Umbraco module.
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/// </summary>
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/// <remarks>
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/// <para>Register that one in web.config.</para>
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/// <para>It will inject <see cref="UmbracoInjectedModule"/> which contains most of the actual code.</para>
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/// </remarks>
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public class UmbracoModule : ModuleInjector<UmbracoInjectedModule>
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{
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/// <summary>
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/// Occurs when...
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/// </summary>
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internal static event EventHandler<RoutableAttemptEventArgs> RouteAttempt;
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/// <summary>
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/// Occurs when...
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/// </summary>
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public static event EventHandler<UmbracoRequestEventArgs> EndRequest;
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/// <summary>
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/// Triggers the RouteAttempt event.
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/// </summary>
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internal static void OnRouteAttempt(object sender, RoutableAttemptEventArgs args)
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{
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RouteAttempt?.Invoke(sender, args);
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}
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/// <summary>
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/// Triggers the EndRequest event.
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/// </summary>
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internal static void OnEndRequest(object sender, UmbracoRequestEventArgs args)
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{
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EndRequest?.Invoke(sender, args);
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}
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// returns a value indicating whether redirection took place and the request has
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// been completed - because we don't want to Response.End() here to terminate
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// everything properly.
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internal static bool HandleHttpResponseStatus(HttpContextBase context, IPublishedRequest pcr, ILogger logger)
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{
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var end = false;
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var response = context.Response;
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logger.Debug<UmbracoModule>("Response status: Redirect={Redirect}, Is404={Is404}, StatusCode={ResponseStatusCode}",
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pcr.IsRedirect ? (pcr.IsRedirectPermanent ? "permanent" : "redirect") : "none",
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pcr.Is404 ? "true" : "false",
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pcr.ResponseStatusCode);
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if(pcr.CacheabilityNoCache)
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response.Cache.SetCacheability(System.Web.HttpCacheability.NoCache);
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foreach (var cacheExtension in pcr.CacheExtensions)
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response.Cache.AppendCacheExtension(cacheExtension);
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foreach (var header in pcr.Headers)
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response.AppendHeader(header.Key, header.Value);
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if (pcr.IsRedirect)
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{
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if (pcr.IsRedirectPermanent)
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response.RedirectPermanent(pcr.RedirectUrl, false); // do not end response
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else
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response.Redirect(pcr.RedirectUrl, false); // do not end response
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end = true;
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}
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else if (pcr.Is404)
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{
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response.StatusCode = 404;
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response.TrySkipIisCustomErrors = Current.Configs.Settings().WebRouting.TrySkipIisCustomErrors;
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if (response.TrySkipIisCustomErrors == false)
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logger.Warn<UmbracoModule>("Status code is 404 yet TrySkipIisCustomErrors is false - IIS will take over.");
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}
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if (pcr.ResponseStatusCode > 0)
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{
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// set status code -- even for redirects
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response.StatusCode = pcr.ResponseStatusCode;
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response.StatusDescription = pcr.ResponseStatusDescription;
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}
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//if (pcr.IsRedirect)
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// response.End(); // end response -- kills the thread and does not return!
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if (pcr.IsRedirect == false) return end;
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response.Flush();
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// bypass everything and directly execute EndRequest event -- but returns
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context.ApplicationInstance.CompleteRequest();
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// though some say that .CompleteRequest() does not properly shutdown the response
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// and the request will hang until the whole code has run... would need to test?
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logger.Debug<UmbracoModule>("Response status: redirecting, complete request now.");
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return end;
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}
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}
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}
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