/mcs/class/System.Web/System.Web/HttpApplication.jvm.cs
C# | 1714 lines | 1292 code | 224 blank | 198 comment | 277 complexity | 13d7377303a33a092a02e88578a88fa4 MD5 | raw file
Possible License(s): Unlicense, Apache-2.0, LGPL-2.0, MPL-2.0-no-copyleft-exception, CC-BY-SA-3.0, GPL-2.0
- //
- // System.Web.HttpApplication.cs
- //
- // Author:
- // Miguel de Icaza (miguel@novell.com)
- // Gonzalo Paniagua (gonzalo@ximian.com)
- //
- //
- // Copyright (C) 2005 Novell, Inc (http://www.novell.com)
- //
- // Permission is hereby granted, free of charge, to any person obtaining
- // a copy of this software and associated documentation files (the
- // "Software"), to deal in the Software without restriction, including
- // without limitation the rights to use, copy, modify, merge, publish,
- // distribute, sublicense, and/or sell copies of the Software, and to
- // permit persons to whom the Software is furnished to do so, subject to
- // the following conditions:
- //
- // The above copyright notice and this permission notice shall be
- // included in all copies or substantial portions of the Software.
- //
- // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- //
- // The Application Processing Pipeline.
- //
- // The Http application pipeline implemented in this file is a
- // beautiful thing. The application pipeline invokes a number of
- // hooks at various stages of the processing of a request. These
- // hooks can be either synchronous or can be asynchronous.
- //
- // The pipeline must ensure that every step is completed before
- // moving to the next step. A trivial thing for synchronous
- // hooks, but asynchronous hooks introduce an extra layer of
- // complexity: when the hook is invoked, the thread must
- // relinquish its control so that the thread can be reused in
- // another operation while waiting.
- //
- // To implement this functionality we used C# iterators manually;
- // we drive the pipeline by executing the various hooks from the
- // `RunHooks' routine which is an enumerator that will yield the
- // value `false' if execution must proceed or `true' if execution
- // must be stopped.
- //
- // By yielding values we can suspend execution of RunHooks.
- //
- // Special attention must be given to `in_begin' and `must_yield'
- // variables. These are used in the case that an async hook
- // completes synchronously as its important to not yield in that
- // case or we would hang.
- //
- // Many of Mono modules used to be declared async, but they would
- // actually be completely synchronous, this might resurface in the
- // future with other modules.
- //
- // TODO:
- // Events Disposed
- //
- using System.IO;
- using System.Collections;
- using System.ComponentModel;
- using System.Globalization;
- using System.Security.Permissions;
- using System.Security.Principal;
- using System.Threading;
- using System.Web.Configuration;
- using System.Web.SessionState;
- using System.Web.UI;
-
- namespace System.Web {
- // CAS
- [AspNetHostingPermission (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
- [AspNetHostingPermission (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
- // attributes
- [ToolboxItem(false)]
- public class HttpApplication : IHttpAsyncHandler, IHttpHandler, IComponent, IDisposable {
- HttpContext context;
- HttpSessionState session;
- ISite isite;
- // The source, and the exposed API (cache).
- HttpModuleCollection modcoll;
- string assemblyLocation;
- //
- // The factory for the handler currently running.
- //
- IHttpHandlerFactory factory;
-
- //
- // Whether the pipeline should be stopped
- //
- bool stop_processing;
- //
- // The Pipeline
- //
- IEnumerator pipeline;
- // To flag when we are done processing a request from BeginProcessRequest.
- ManualResetEvent done;
- // The current IAsyncResult for the running async request handler in the pipeline
- AsyncRequestState begin_iar;
- // Tracks the current AsyncInvocation being dispatched
- AsyncInvoker current_ai;
- // We don't use the EventHandlerList here, but derived classes might do
- EventHandlerList events;
- // Culture and IPrincipal
- CultureInfo app_culture;
- CultureInfo appui_culture;
- CultureInfo prev_app_culture;
- CultureInfo prev_appui_culture;
- IPrincipal prev_user;
- //
- // These are used to detect the case where the EndXXX method is invoked
- // from within the BeginXXXX delegate, so we detect whether we kick the
- // pipeline from here, or from the the RunHook routine
- //
- bool must_yield;
- bool in_begin;
- public HttpApplication ()
- {
- done = new ManualResetEvent (false);
- }
- internal void InitOnce (bool full_init)
- {
- lock (this) {
- if (modcoll != null)
- return;
- #if NET_2_0
- HttpModulesSection modules;
- modules = (HttpModulesSection) WebConfigurationManager.GetSection ("system.web/httpModules");
- #else
- ModulesConfiguration modules;
- modules = (ModulesConfiguration) HttpContext.GetAppConfig ("system.web/httpModules");
- #endif
- modcoll = modules.LoadModules (this);
- if (full_init)
- HttpApplicationFactory.AttachEvents (this);
- #if NET_2_0
- GlobalizationSection cfg;
- cfg = (GlobalizationSection) WebConfigurationManager.GetSection ("system.web/globalization");
- app_culture = cfg.GetCulture();
- appui_culture = cfg.GetUICulture();
- #else
- GlobalizationConfiguration cfg;
- cfg = GlobalizationConfiguration.GetInstance (null);
- if (cfg != null) {
- app_culture = cfg.Culture;
- appui_culture = cfg.UICulture;
- }
- #endif
- }
- }
- internal string AssemblyLocation {
- get {
- if (assemblyLocation == null)
- assemblyLocation = GetType ().Assembly.Location;
- return assemblyLocation;
- }
- }
- [Browsable (false)]
- [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
- public HttpApplicationState Application {
- get {
- return HttpApplicationFactory.ApplicationState;
- }
- }
- [Browsable (false)]
- [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
- public HttpContext Context {
- get {
- return context;
- }
- }
-
- protected EventHandlerList Events {
- get {
- if (events == null)
- events = new EventHandlerList ();
- return events;
- }
- }
- [Browsable (false)]
- [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
- public HttpModuleCollection Modules {
- [AspNetHostingPermission (SecurityAction.Demand, Level = AspNetHostingPermissionLevel.High)]
- get {
- if (modcoll == null)
- modcoll = new HttpModuleCollection ();
-
- return modcoll;
- }
- }
- [Browsable (false)]
- [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
- public HttpRequest Request {
- get {
- if (context == null)
- throw new HttpException (Locale.GetText ("No context is available."));
- if (false == HttpApplicationFactory.ContextAvailable)
- throw new HttpException (Locale.GetText ("Request is not available in this context."));
- return context.Request;
- }
- }
- [Browsable (false)]
- [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
- public HttpResponse Response {
- get {
- if (context == null)
- throw new HttpException (Locale.GetText ("No context is available."));
- if (false == HttpApplicationFactory.ContextAvailable)
- throw new HttpException (Locale.GetText ("Response is not available in this context."));
- return context.Response;
- }
- }
- [Browsable (false)]
- [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
- public HttpServerUtility Server {
- get {
- if (context != null)
- return context.Server;
- //
- // This is so we can get the Server and call a few methods
- // which are not context sensitive, see HttpServerUtilityTest
- //
- return new HttpServerUtility ((HttpContext) null);
- }
- }
- [Browsable (false)]
- [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
- public HttpSessionState Session {
- get {
- // Only used for Session_End
- if (session != null)
- return session;
- if (context == null)
- throw new HttpException (Locale.GetText ("No context is available."));
- return context.Session;
- }
- }
- [Browsable (false)]
- [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
- public virtual ISite Site {
- get {
- return isite;
- }
- set {
- isite = value;
- }
- }
- [Browsable (false)]
- [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
- public IPrincipal User {
- get {
- if (context == null)
- throw new HttpException (Locale.GetText ("No context is available."));
- if (context.User == null)
- throw new HttpException (Locale.GetText ("No currently authenticated user."));
-
- return context.User;
- }
- }
-
- public virtual event EventHandler Disposed;
- public virtual event EventHandler Error;
- public event EventHandler PreSendRequestHeaders;
- internal void TriggerPreSendRequestHeaders ()
- {
- if (PreSendRequestHeaders != null)
- PreSendRequestHeaders (this, EventArgs.Empty);
- }
- public event EventHandler PreSendRequestContent;
- internal void TriggerPreSendRequestContent ()
- {
- if (PreSendRequestContent != null)
- PreSendRequestContent (this, EventArgs.Empty);
- }
-
- public event EventHandler AcquireRequestState;
- public void AddOnAcquireRequestStateAsync (BeginEventHandler bh, EndEventHandler eh)
- {
- AsyncInvoker invoker = new AsyncInvoker (bh, eh);
- AcquireRequestState += new EventHandler (invoker.Invoke);
- }
- public event EventHandler AuthenticateRequest;
- public void AddOnAuthenticateRequestAsync (BeginEventHandler bh, EndEventHandler eh)
- {
- AsyncInvoker invoker = new AsyncInvoker (bh, eh);
- AuthenticateRequest += new EventHandler (invoker.Invoke);
- }
- public event EventHandler AuthorizeRequest;
- public void AddOnAuthorizeRequestAsync (BeginEventHandler bh, EndEventHandler eh)
- {
- AsyncInvoker invoker = new AsyncInvoker (bh, eh);
- AuthorizeRequest += new EventHandler (invoker.Invoke);
- }
- public event EventHandler BeginRequest;
- public void AddOnBeginRequestAsync (BeginEventHandler bh, EndEventHandler eh)
- {
- AsyncInvoker invoker = new AsyncInvoker (bh, eh);
- BeginRequest += new EventHandler (invoker.Invoke);
- }
- public event EventHandler EndRequest;
- public void AddOnEndRequestAsync (BeginEventHandler bh, EndEventHandler eh)
- {
- AsyncInvoker invoker = new AsyncInvoker (bh, eh);
- EndRequest += new EventHandler (invoker.Invoke);
- }
-
- public event EventHandler PostRequestHandlerExecute;
- public void AddOnPostRequestHandlerExecuteAsync (BeginEventHandler bh, EndEventHandler eh)
- {
- AsyncInvoker invoker = new AsyncInvoker (bh, eh);
- PostRequestHandlerExecute += new EventHandler (invoker.Invoke);
- }
- public event EventHandler PreRequestHandlerExecute;
- public void AddOnPreRequestHandlerExecuteAsync (BeginEventHandler bh, EndEventHandler eh)
- {
- AsyncInvoker invoker = new AsyncInvoker (bh, eh);
- PreRequestHandlerExecute += new EventHandler (invoker.Invoke);
- }
- public event EventHandler ReleaseRequestState;
- public void AddOnReleaseRequestStateAsync (BeginEventHandler bh, EndEventHandler eh)
- {
- AsyncInvoker invoker = new AsyncInvoker (bh, eh);
- ReleaseRequestState += new EventHandler (invoker.Invoke);
- }
- public event EventHandler ResolveRequestCache;
- public void AddOnResolveRequestCacheAsync (BeginEventHandler bh, EndEventHandler eh)
- {
- AsyncInvoker invoker = new AsyncInvoker (bh, eh);
- ResolveRequestCache += new EventHandler (invoker.Invoke);
- }
- public event EventHandler UpdateRequestCache;
- public void AddOnUpdateRequestCacheAsync (BeginEventHandler bh, EndEventHandler eh)
- {
- AsyncInvoker invoker = new AsyncInvoker (bh, eh);
- UpdateRequestCache += new EventHandler (invoker.Invoke);
- }
- #if NET_2_0
- public event EventHandler PostAuthenticateRequest;
- public void AddOnPostAuthenticateRequestAsync (BeginEventHandler bh, EndEventHandler eh)
- {
- AddOnPostAuthenticateRequestAsync (bh, eh, null);
- }
-
- public void AddOnPostAuthenticateRequestAsync (BeginEventHandler bh, EndEventHandler eh, object data)
- {
- AsyncInvoker invoker = new AsyncInvoker (bh, eh, data);
- PostAuthenticateRequest += new EventHandler (invoker.Invoke);
- }
-
- public event EventHandler PostAuthorizeRequest;
- public void AddOnPostAuthorizeRequestAsync (BeginEventHandler bh, EndEventHandler eh)
- {
- AddOnPostAuthorizeRequestAsync (bh, eh, null);
- }
-
- public void AddOnPostAuthorizeRequestAsync (BeginEventHandler bh, EndEventHandler eh, object data)
- {
- AsyncInvoker invoker = new AsyncInvoker (bh, eh, data);
- PostAuthorizeRequest += new EventHandler (invoker.Invoke);
- }
- public event EventHandler PostResolveRequestCache;
- public void AddOnPostResolveRequestCacheAsync (BeginEventHandler bh, EndEventHandler eh)
- {
- AddOnPostResolveRequestCacheAsync (bh, eh, null);
- }
-
- public void AddOnPostResolveRequestCacheAsync (BeginEventHandler bh, EndEventHandler eh, object data)
- {
- AsyncInvoker invoker = new AsyncInvoker (bh, eh, data);
- PostResolveRequestCache += new EventHandler (invoker.Invoke);
- }
- public event EventHandler PostMapRequestHandler;
- public void AddOnPostMapRequestHandlerAsync (BeginEventHandler bh, EndEventHandler eh)
- {
- AddOnPostMapRequestHandlerAsync (bh, eh, null);
- }
-
- public void AddOnPostMapRequestHandlerAsync (BeginEventHandler bh, EndEventHandler eh, object data)
- {
- AsyncInvoker invoker = new AsyncInvoker (bh, eh, data);
- PostMapRequestHandler += new EventHandler (invoker.Invoke);
- }
-
- public event EventHandler PostAcquireRequestState;
- public void AddOnPostAcquireRequestStateAsync (BeginEventHandler bh, EndEventHandler eh)
- {
- AddOnPostAcquireRequestStateAsync (bh, eh, null);
- }
-
- public void AddOnPostAcquireRequestStateAsync (BeginEventHandler bh, EndEventHandler eh, object data)
- {
- AsyncInvoker invoker = new AsyncInvoker (bh, eh, data);
- PostAcquireRequestState += new EventHandler (invoker.Invoke);
- }
-
- public event EventHandler PostReleaseRequestState;
- public void AddOnPostReleaseRequestStateAsync (BeginEventHandler bh, EndEventHandler eh)
- {
- AddOnPostReleaseRequestStateAsync (bh, eh, null);
- }
-
- public void AddOnPostReleaseRequestStateAsync (BeginEventHandler bh, EndEventHandler eh, object data)
- {
- AsyncInvoker invoker = new AsyncInvoker (bh, eh, data);
- PostReleaseRequestState += new EventHandler (invoker.Invoke);
- }
- public event EventHandler PostUpdateRequestCache;
- public void AddOnPostUpdateRequestCacheAsync (BeginEventHandler bh, EndEventHandler eh)
- {
- AddOnPostUpdateRequestCacheAsync (bh, eh, null);
- }
-
- public void AddOnPostUpdateRequestCacheAsync (BeginEventHandler bh, EndEventHandler eh, object data)
- {
- AsyncInvoker invoker = new AsyncInvoker (bh, eh, data);
- PostUpdateRequestCache += new EventHandler (invoker.Invoke);
- }
- //
- // The new overloads that take a data parameter
- //
- public void AddOnAcquireRequestStateAsync (BeginEventHandler bh, EndEventHandler eh, object data)
- {
- AsyncInvoker invoker = new AsyncInvoker (bh, eh, data);
- AcquireRequestState += new EventHandler (invoker.Invoke);
- }
- public void AddOnAuthenticateRequestAsync (BeginEventHandler bh, EndEventHandler eh, object data)
- {
- AsyncInvoker invoker = new AsyncInvoker (bh, eh, data);
- AuthenticateRequest += new EventHandler (invoker.Invoke);
- }
- public void AddOnAuthorizeRequestAsync (BeginEventHandler bh, EndEventHandler eh, object data)
- {
- AsyncInvoker invoker = new AsyncInvoker (bh, eh, data);
- AuthorizeRequest += new EventHandler (invoker.Invoke);
- }
- public void AddOnBeginRequestAsync (BeginEventHandler bh, EndEventHandler eh, object data)
- {
- AsyncInvoker invoker = new AsyncInvoker (bh, eh, data);
- BeginRequest += new EventHandler (invoker.Invoke);
- }
- public void AddOnEndRequestAsync (BeginEventHandler bh, EndEventHandler eh, object data)
- {
- AsyncInvoker invoker = new AsyncInvoker (bh, eh, data);
- EndRequest += new EventHandler (invoker.Invoke);
- }
-
- public void AddOnPostRequestHandlerExecuteAsync (BeginEventHandler bh, EndEventHandler eh, object data)
- {
- AsyncInvoker invoker = new AsyncInvoker (bh, eh, data);
- PostRequestHandlerExecute += new EventHandler (invoker.Invoke);
- }
- public void AddOnPreRequestHandlerExecuteAsync (BeginEventHandler bh, EndEventHandler eh, object data)
- {
- AsyncInvoker invoker = new AsyncInvoker (bh, eh, data);
- PreRequestHandlerExecute += new EventHandler (invoker.Invoke);
- }
- public void AddOnReleaseRequestStateAsync (BeginEventHandler bh, EndEventHandler eh, object data)
- {
- AsyncInvoker invoker = new AsyncInvoker (bh, eh, data);
- ReleaseRequestState += new EventHandler (invoker.Invoke);
- }
- public void AddOnResolveRequestCacheAsync (BeginEventHandler bh, EndEventHandler eh, object data)
- {
- AsyncInvoker invoker = new AsyncInvoker (bh, eh, data);
- ResolveRequestCache += new EventHandler (invoker.Invoke);
- }
- public void AddOnUpdateRequestCacheAsync (BeginEventHandler bh, EndEventHandler eh, object data)
- {
- AsyncInvoker invoker = new AsyncInvoker (bh, eh, data);
- UpdateRequestCache += new EventHandler (invoker.Invoke);
- }
- #endif
-
- internal event EventHandler DefaultAuthentication;
-
- //
- // Bypass all the event on the Http pipeline and go directly to EndRequest
- //
- public void CompleteRequest ()
- {
- stop_processing = true;
- }
- internal bool RequestCompleted {
- set { stop_processing = value; }
- }
- public virtual void Dispose ()
- {
- if (modcoll != null) {
- for (int i = modcoll.Count; i >= 0; i--) {
- modcoll.Get (i).Dispose ();
- }
- modcoll = null;
- }
- if (Disposed != null)
- Disposed (this, EventArgs.Empty);
-
- done.Close ();
- done = null;
- }
- public virtual string GetVaryByCustomString (HttpContext context, string custom)
- {
- if (custom == null) // Sigh
- throw new NullReferenceException ();
- if (0 == String.Compare (custom, "browser", true, CultureInfo.InvariantCulture))
- return context.Request.Browser.Type;
- return null;
- }
- //
- // If we catch an error, queue this error
- //
- void ProcessError (Exception e)
- {
- bool first = context.Error == null;
-
- context.AddError (e);
- if (first){
- if (Error != null){
- try {
- Error (this, EventArgs.Empty);
- } catch (ThreadAbortException ee){
- // This happens on Redirect() or End()
- Thread.ResetAbort ();
- } catch (Exception ee){
- context.AddError (ee);
- }
- }
- }
- stop_processing = true;
- }
-
- //
- // Ticks the clock: next step on the pipeline.
- //
- void Tick ()
- {
- try {
- if (pipeline.MoveNext ()){
- if ((bool)pipeline.Current)
- PipelineDone ();
- }
- } catch (Exception e) {
- Console.WriteLine ("Tick caught an exception that has not been propagated:\n" + e);
- }
- }
- void Resume ()
- {
- if (in_begin)
- must_yield = false;
- else
- Tick ();
- }
-
- //
- // Invoked when our async callback called from RunHooks completes,
- // we restart the pipeline here.
- //
- void async_callback_completed_cb (IAsyncResult ar)
- {
- if (current_ai.end != null){
- try {
- current_ai.end (ar);
- } catch (Exception e) {
- ProcessError (e);
- }
- }
- Resume ();
- }
- void async_handler_complete_cb (IAsyncResult ar)
- {
- IHttpAsyncHandler async_handler = ((IHttpAsyncHandler) ar.AsyncState);
- try {
- async_handler.EndProcessRequest (ar);
- } catch (Exception e){
- ProcessError (e);
- }
-
- Resume ();
- }
-
- //
- // This enumerator yields whether processing must be stopped:
- // true: processing of the pipeline must be stopped
- // false: processing of the pipeline must not be stopped
- //
- #if TARGET_JVM && !NET_2_0
- sealed class RunHooksEnumerator : IEnumerable, IEnumerator
- {
- Delegate [] delegates;
- int currentStep = 0;
- HttpApplication app;
- internal RunHooksEnumerator(HttpApplication app, Delegate list)
- {
- this.app = app;
- delegates = list.GetInvocationList ();
- }
- public IEnumerator GetEnumerator() { return this; }
- public object Current { get{ return app.stop_processing; } }
- public void Reset()
- {
- throw new NotImplementedException("HttpApplication.RunHooksEnumerator.Reset called.");
- }
- public bool MoveNext ()
- {
- while (currentStep < delegates.Length) {
- if (ProcessDelegate((EventHandler)delegates[currentStep++]))
- return true;
- }
- return false;
- }
- bool ProcessDelegate(EventHandler d)
- {
- if (d.Target != null && (d.Target is AsyncInvoker)){
- app.current_ai = (AsyncInvoker) d.Target;
- try {
- app.must_yield = true;
- app.in_begin = true;
- app.context.BeginTimeoutPossible ();
- app.current_ai.begin (app, EventArgs.Empty, new AsyncCallback(app.async_callback_completed_cb), app.current_ai.data);
- }
- catch (ThreadAbortException taex){
- object obj = taex.ExceptionState;
- Thread.ResetAbort ();
- app.stop_processing = true;
- if (obj is StepTimeout)
- app.ProcessError (new HttpException ("The request timed out."));
- }
- catch (Exception e){
- app.ProcessError (e);
- }
- finally {
- app.in_begin = false;
- app.context.EndTimeoutPossible ();
- }
- //
- // If things are still moving forward, yield this
- // thread now
- //
- if (app.must_yield)
- return true;
- else if (app.stop_processing)
- return true;
- }
- else {
- try {
- app.context.BeginTimeoutPossible ();
- d (app, EventArgs.Empty);
- } catch (ThreadAbortException taex){
- object obj = taex.ExceptionState;
- Thread.ResetAbort ();
- app.stop_processing = true;
- if (obj is StepTimeout)
- app.ProcessError (new HttpException ("The request timed out."));
- }
- catch (Exception e){
- app.ProcessError (e);
- }
- finally {
- app.context.EndTimeoutPossible ();
- }
- if (app.stop_processing)
- return true;
- }
- return false;
- }
- }
- IEnumerable RunHooks (Delegate list)
- {
- return new RunHooksEnumerator(this, list);
- }
- #else
- IEnumerable RunHooks (Delegate list)
- {
- Delegate [] delegates = list.GetInvocationList ();
- foreach (EventHandler d in delegates){
- if (d.Target != null && (d.Target is AsyncInvoker)){
- current_ai = (AsyncInvoker) d.Target;
- try {
- must_yield = true;
- in_begin = true;
- context.BeginTimeoutPossible ();
- current_ai.begin (this, EventArgs.Empty, async_callback_completed_cb, current_ai.data);
- } catch (ThreadAbortException taex){
- object obj = taex.ExceptionState;
- Thread.ResetAbort ();
- stop_processing = true;
- if (obj is StepTimeout)
- ProcessError (new HttpException ("The request timed out."));
- } catch (Exception e){
- ProcessError (e);
- } finally {
- in_begin = false;
- context.EndTimeoutPossible ();
- }
- //
- // If things are still moving forward, yield this
- // thread now
- //
- if (must_yield)
- yield return stop_processing;
- else if (stop_processing)
- yield return true;
- } else {
- try {
- context.BeginTimeoutPossible ();
- d (this, EventArgs.Empty);
- } catch (ThreadAbortException taex){
- object obj = taex.ExceptionState;
- Thread.ResetAbort ();
- stop_processing = true;
- if (obj is StepTimeout)
- ProcessError (new HttpException ("The request timed out."));
- } catch (Exception e){
- ProcessError (e);
- } finally {
- context.EndTimeoutPossible ();
- }
- if (stop_processing)
- yield return true;
- }
- }
- }
- #endif
- static void FinalErrorWrite (HttpResponse response, string error)
- {
- try {
- response.Write (error);
- response.Flush (true);
- } catch {
- response.Close ();
- }
- }
- void OutputPage ()
- {
- if (context.Error == null){
- try {
- context.Response.Flush (true);
- } catch (Exception e){
- context.AddError (e);
- }
- }
- Exception error = context.Error;
- if (error != null){
- HttpResponse response = context.Response;
- if (!response.HeadersSent){
- response.ClearHeaders ();
- response.ClearContent ();
- if (error is HttpException){
- response.StatusCode = ((HttpException)error).GetHttpCode ();
- } else {
- error = new HttpException ("", error);
- response.StatusCode = 500;
- }
- if (!RedirectCustomError ())
- FinalErrorWrite (response, ((HttpException) error).GetHtmlErrorMessage ());
- else
- response.Flush (true);
- } else {
- if (!(error is HttpException))
- error = new HttpException ("", error);
- FinalErrorWrite (response, ((HttpException) error).GetHtmlErrorMessage ());
- }
- }
-
- }
-
- //
- // Invoked at the end of the pipeline execution
- //
- void PipelineDone ()
- {
- try {
- if (EndRequest != null)
- EndRequest (this, EventArgs.Empty);
- } catch (Exception e){
- ProcessError (e);
- }
- try {
- OutputPage ();
- } catch (Exception e) {
- Console.WriteLine ("Internal error: OutputPage threw an exception " + e);
- } finally {
- context.WorkerRequest.EndOfRequest();
- if (begin_iar != null){
- try {
- begin_iar.Complete ();
- } catch {
- //
- // TODO: if this throws an error, we have no way of reporting it
- // Not really too bad, since the only failure might be
- // `HttpRuntime.request_processed'
- //
- }
- }
-
- done.Set ();
- if (factory != null && context.Handler != null){
- factory.ReleaseHandler (context.Handler);
- factory = null;
- }
-
- context.Handler = null;
- // context = null; -> moved to PostDone
- pipeline = null;
- current_ai = null;
- }
- PostDone ();
- }
- //
- // Events fired as described in `Http Runtime Support, HttpModules,
- // Handling Public Events'
- //
- #if TARGET_JVM && !NET_2_0
- sealed class PipeLineEnumerator : IEnumerator
- {
- readonly HttpApplication _this;
- object current;
- int currentYield;
- IEnumerator currentEnumerator;
- IHttpHandler handler = null;
- internal PipeLineEnumerator(HttpApplication app) {
- _this = app;
- }
- public object Current { get{ return currentEnumerator != null ? currentEnumerator.Current : current; } }
- public void Reset() {
- currentEnumerator = null;
- currentYield = 0;
- }
- void ResetEnumerator() {
- if (currentEnumerator != null) {
- current = currentEnumerator.Current;
- currentEnumerator = null;
- }
- }
- public bool MoveNext () {
- switch (currentYield) {
- case 0: break;
- case 1: goto yield_1;
- case 2: goto yield_2;
- case 3: goto yield_3;
- case 4: goto yield_4;
- #if NET_2_0
- case 5: goto yield_5;
- #endif
- case 6: goto yield_6;
- #if NET_2_0
- case 7: goto yield_7;
- #endif
- case 8: goto yield_8;
- case 9: goto yield_9;
- #if NET_2_0
- case 10: goto yield_10;
- case 11: goto yield_11;
- #endif
- case 12: goto yield_12;
- #if NET_2_0
- case 13: goto yield_13;
- #endif
- case 14: goto yield_14;
- case 15: goto yield_15;
- #if NET_2_0
- case 16: goto yield_16;
- #endif
- case 17: goto yield_17;
- #if NET_2_0
- case 18: goto yield_18;
- #endif
- default: goto yield_19;
- }
- if (_this.stop_processing) {
- //yield return true;
- current = true;
- currentYield = 1;
- return true;
- }
- yield_1:
- yield_2:
- if (_this.BeginRequest != null) {
- //foreach (bool stop in RunHooks (BeginRequest))
- // yield return stop;
- if (currentEnumerator == null) {
- currentYield = 2;
- currentEnumerator = _this.RunHooks(_this.BeginRequest).GetEnumerator();
- }
- while (currentEnumerator.MoveNext())
- return true;
- ResetEnumerator();
- }
- yield_3:
- if (_this.AuthenticateRequest != null) {
- //foreach (bool stop in RunHooks (AuthenticateRequest))
- // yield return stop;
- if (currentEnumerator == null) {
- currentYield = 3;
- currentEnumerator = _this.RunHooks(_this.AuthenticateRequest).GetEnumerator();
- }
- while (currentEnumerator.MoveNext())
- return true;
- ResetEnumerator();
- }
- yield_4:
- if (_this.DefaultAuthentication != null) {
- //foreach (bool stop in RunHooks (DefaultAuthentication))
- // yield return stop;
- if (currentEnumerator == null) {
- currentYield = 4;
- currentEnumerator = _this.RunHooks(_this.DefaultAuthentication).GetEnumerator();
- }
- while (currentEnumerator.MoveNext())
- return true;
- ResetEnumerator();
- }
- #if NET_2_0
- yield_5:
- if (_this.PostAuthenticateRequest != null) {
- //foreach (bool stop in RunHooks (AuthenticateRequest))
- // yield return stop;
- if (currentEnumerator == null) {
- currentYield = 5;
- currentEnumerator = _this.RunHooks(_this.PostAuthenticateRequest).GetEnumerator();
- }
- while (currentEnumerator.MoveNext())
- return true;
- ResetEnumerator();
- }
- #endif
- yield_6:
- if (_this.AuthorizeRequest != null) {
- //foreach (bool stop in RunHooks (AuthorizeRequest))
- // yield return stop;
- if (currentEnumerator == null) {
- currentYield = 6;
- currentEnumerator = _this.RunHooks(_this.AuthorizeRequest).GetEnumerator();
- }
- while (currentEnumerator.MoveNext())
- return true;
- ResetEnumerator();
- }
- #if NET_2_0
- yield_7:
- if (_this.PostAuthorizeRequest != null) {
- //foreach (bool stop in RunHooks (PostAuthorizeRequest))
- // yield return stop;
- if (currentEnumerator == null) {
- currentYield = 7;
- currentEnumerator = _this.RunHooks(_this.PostAuthorizeRequest).GetEnumerator();
- }
- while (currentEnumerator.MoveNext())
- return true;
- ResetEnumerator();
- }
- #endif
- yield_8:
- if (_this.ResolveRequestCache != null) {
- //foreach (bool stop in RunHooks (ResolveRequestCache))
- // yield return stop;
- if (currentEnumerator == null) {
- currentYield = 8;
- currentEnumerator = _this.RunHooks(_this.ResolveRequestCache).GetEnumerator();
- }
- while (currentEnumerator.MoveNext())
- return true;
- ResetEnumerator();
- }
- // Obtain the handler for the request.
- //IHttpHandler handler = null;
- try {
- handler = _this.GetHandler (_this.context);
- } catch (FileNotFoundException fnf){
- if (_this.context.Request.IsLocal)
- _this.ProcessError (new HttpException (404, String.Format ("File not found {0}", fnf.FileName), fnf));
- else
- _this.ProcessError (new HttpException (404, "File not found", fnf));
- } catch (DirectoryNotFoundException dnf){
- _this.ProcessError (new HttpException (404, "Directory not found", dnf));
- } catch (Exception e) {
- _this.ProcessError (e);
- }
- if (_this.stop_processing) {
- //yield return true;
- current = true;
- currentYield = 9;
- return true;
- }
- yield_9:
- #if NET_2_0
- yield_10:
- if (_this.PostResolveRequestCache != null) {
- //foreach (bool stop in RunHooks (PostResolveRequestCache))
- // yield return stop;
- if (currentEnumerator == null) {
- currentYield = 10;
- currentEnumerator = _this.RunHooks(_this.PostResolveRequestCache).GetEnumerator();
- }
- while (currentEnumerator.MoveNext())
- return true;
- ResetEnumerator();
- }
- yield_11:
- if (_this.PostMapRequestHandler != null) {
- //foreach (bool stop in RunHooks (PostMapRequestHandler))
- // yield return stop;
- if (currentEnumerator == null) {
- currentYield = 11;
- currentEnumerator = _this.RunHooks(_this.PostMapRequestHandler).GetEnumerator();
- }
- while (currentEnumerator.MoveNext())
- return true;
- ResetEnumerator();
- }
-
- #endif
- yield_12:
- if (_this.AcquireRequestState != null){
- //foreach (bool stop in RunHooks (AcquireRequestState))
- // yield return stop;
- if (currentEnumerator == null) {
- currentYield = 12;
- currentEnumerator = _this.RunHooks(_this.AcquireRequestState).GetEnumerator();
- }
- while (currentEnumerator.MoveNext())
- return true;
- ResetEnumerator();
- }
- #if NET_2_0
- yield_13:
- if (_this.PostAcquireRequestState != null){
- //foreach (bool stop in RunHooks (PostAcquireRequestState))
- // yield return stop;
- if (currentEnumerator == null) {
- currentYield = 13;
- currentEnumerator = _this.RunHooks(_this.PostAcquireRequestState).GetEnumerator();
- }
- while (currentEnumerator.MoveNext())
- return true;
- ResetEnumerator();
- }
- #endif
-
- //
- // From this point on, we need to ensure that we call
- // ReleaseRequestState, so the code below jumps to
- // `release:' to guarantee it rather than yielding.
- //
- if (_this.PreRequestHandlerExecute != null)
- foreach (bool stop in _this.RunHooks (_this.PreRequestHandlerExecute))
- if (stop)
- goto release;
-
- try {
- _this.context.BeginTimeoutPossible ();
- if (handler != null){
- IHttpAsyncHandler async_handler = handler as IHttpAsyncHandler;
-
- if (async_handler != null){
- _this.must_yield = true;
- _this.in_begin = true;
- async_handler.BeginProcessRequest (_this.context, new AsyncCallback(_this.async_handler_complete_cb), handler);
- } else {
- _this.must_yield = false;
- handler.ProcessRequest (_this.context);
- }
- }
- } catch (ThreadAbortException taex){
- object obj = taex.ExceptionState;
- Thread.ResetAbort ();
- _this.stop_processing = true;
- if (obj is StepTimeout)
- _this.ProcessError (new HttpException ("The request timed out."));
- } catch (Exception e){
- _this.ProcessError (e);
- } finally {
- _this.in_begin = false;
- _this.context.EndTimeoutPossible ();
- }
- if (_this.must_yield) {
- //yield return stop_processing;
- current = _this.stop_processing;
- currentYield = 14;
- return true;
- }
- else if (_this.stop_processing)
- goto release;
- yield_14:
- // These are executed after the application has returned
-
- if (_this.PostRequestHandlerExecute != null)
- foreach (bool stop in _this.RunHooks (_this.PostRequestHandlerExecute))
- if (stop)
- goto release;
-
- release:
- if (_this.ReleaseRequestState != null){
- foreach (bool stop in _this.RunHooks (_this.ReleaseRequestState)){
- //
- // Ignore the stop signal while release the state
- //
-
- }
- }
-
- if (_this.stop_processing) {
- //yield return true;
- current = true;
- currentYield = 15;
- return true;
- }
- yield_15:
- #if NET_2_0
- yield_16:
- if (_this.PostReleaseRequestState != null) {
- //foreach (bool stop in RunHooks (PostReleaseRequestState))
- // yield return stop;
- if (currentEnumerator == null) {
- currentYield = 16;
- currentEnumerator = _this.RunHooks(_this.PostReleaseRequestState).GetEnumerator();
- }
- while (currentEnumerator.MoveNext())
- return true;
- ResetEnumerator();
- }
- #endif
- if (_this.context.Error == null)
- _this.context.Response.DoFilter (true);
- yield_17:
- if (_this.UpdateRequestCache != null) {
- //foreach (bool stop in RunHooks (UpdateRequestCache))
- // yield return stop;
- if (currentEnumerator == null) {
- currentYield = 17;
- currentEnumerator = _this.RunHooks(_this.UpdateRequestCache).GetEnumerator();
- }
- while (currentEnumerator.MoveNext())
- return true;
- ResetEnumerator();
- }
- #if NET_2_0
- yield_18:
- if (_this.PostUpdateRequestCache != null) {
- //foreach (bool stop in RunHooks (PostUpdateRequestCache))
- // yield return stop;
- if (currentEnumerator == null) {
- currentYield = 18;
- currentEnumerator = _this.RunHooks(_this.PostUpdateRequestCache).GetEnumerator();
- }
- while (currentEnumerator.MoveNext())
- return true;
- ResetEnumerator();
- }
- #endif
- _this.PipelineDone ();
- currentYield = 19;
- yield_19:
- return false;
- }
- }
- IEnumerator Pipeline ()
- {
- return new PipeLineEnumerator(this);
- }
- #else
- IEnumerator Pipeline ()
- {
- if (stop_processing)
- yield return true;
- if (BeginRequest != null)
- foreach (bool stop in RunHooks (BeginRequest))
- yield return stop;
- if (AuthenticateRequest != null)
- foreach (bool stop in RunHooks (AuthenticateRequest))
- yield return stop;
- if (DefaultAuthentication != null)
- foreach (bool stop in RunHooks (DefaultAuthentication))
- yield return stop;
- #if NET_2_0
- if (PostAuthenticateRequest != null)
- foreach (bool stop in RunHooks (AuthenticateRequest))
- yield return stop;
- #endif
- if (AuthorizeRequest != null)
- foreach (bool stop in RunHooks (AuthorizeRequest))
- yield return stop;
- #if NET_2_0
- if (PostAuthorizeRequest != null)
- foreach (bool stop in RunHooks (PostAuthorizeRequest))
- yield return stop;
- #endif
- if (ResolveRequestCache != null)
- foreach (bool stop in RunHooks (ResolveRequestCache))
- yield return stop;
- // Obtain the handler for the request.
- IHttpHandler handler = null;
- try {
- handler = GetHandler (context);
- } catch (FileNotFoundException fnf){
- if (context.Request.IsLocal)
- ProcessError (new HttpException (404, String.Format ("File not found {0}", fnf.FileName), fnf));
- else
- ProcessError (new HttpException (404, "File not found", fnf));
- } catch (DirectoryNotFoundException dnf){
- ProcessError (new HttpException (404, "Directory not found", dnf));
- } catch (Exception e) {
- ProcessError (e);
- }
- if (stop_processing)
- yield return true;
- #if NET_2_0
- if (PostResolveRequestCache != null)
- foreach (bool stop in RunHooks (PostResolveRequestCache))
- yield return stop;
- if (PostMapRequestHandler != null)
- foreach (bool stop in RunHooks (PostMapRequestHandler))
- yield return stop;
-
- #endif
- if (AcquireRequestState != null){
- foreach (bool stop in RunHooks (AcquireRequestState))
- yield return stop;
- }
- #if NET_2_0
- if (PostAcquireRequestState != null){
- foreach (bool stop in RunHooks (PostAcquireRequestState))
- yield return stop;
- }
- #endif
-
- //
- // From this point on, we need to ensure that we call
- // ReleaseRequestState, so the code below jumps to
- // `release:' to guarantee it rather than yielding.
- //
- if (PreRequestHandlerExecute != null)
- foreach (bool stop in RunHooks (PreRequestHandlerExecute))
- if (stop)
- goto release;
-
- try {
- context.BeginTimeoutPossible ();
- if (handler != null){
- IHttpAsyncHandler async_handler = handler as IHttpAsyncHandler;
-
- if (async_handler != null){
- must_yield = true;
- in_begin = true;
- async_handler.BeginProcessRequest (context, async_handler_complete_cb, handler);
- } else {
- must_yield = false;
- handler.ProcessRequest (context);
- }
- }
- } catch (ThreadAbortException taex){
- object obj = taex.ExceptionState;
- Thread.ResetAbort ();
- stop_processing = true;
- if (obj is StepTimeout)
- ProcessError (new HttpException ("The request timed out."));
- } catch (Exception e){
- ProcessError (e);
- } finally {
- in_begin = false;
- context.EndTimeoutPossible ();
- }
- if (must_yield)
- yield return stop_processing;
- else if (stop_processing)
- goto release;
-
- // These are executed after the application has returned
-
- if (PostRequestHandlerExecute != null)
- foreach (bool stop in RunHooks (PostRequestHandlerExecute))
- if (stop)
- goto release;
-
- release:
- if (ReleaseRequestState != null){
- foreach (bool stop in RunHooks (ReleaseRequestState)){
- //
- // Ignore the stop signal while release the state
- //
-
- }
- }
-
- if (stop_processing)
- yield return true;
- #if NET_2_0
- if (PostReleaseRequestState != null)
- foreach (bool stop in RunHooks (PostReleaseRequestState))
- yield return stop;
- #endif
- if (context.Error == null)
- context.Response.DoFilter (true);
- if (UpdateRequestCache != null)
- foreach (bool stop in RunHooks (UpdateRequestCache))
- yield return stop;
- #if NET_2_0
- if (PostUpdateRequestCache != null)
- foreach (bool stop in RunHooks (PostUpdateRequestCache))
- yield return stop;
- #endif
- PipelineDone ();
- }
- #endif
- void PreStart ()
- {
- #if !TARGET_J2EE
- HttpRuntime.TimeoutManager.Add (context);
- #endif
- Thread th = Thread.CurrentThread;
- if (app_culture != null) {
- prev_app_culture = th.CurrentCulture;
- th.CurrentCulture = app_culture;
- }
- if (appui_culture != null) {
- prev_appui_culture = th.CurrentUICulture;
- th.CurrentUICulture = appui_culture;
- }
- #if !TARGET_JVM
- prev_user = Thread.CurrentPrincipal;
- #endif
- }
- void PostDone ()
- {
- Thread th = Thread.CurrentThread;
- #if !TARGET_JVM
- if (Thread.CurrentPrincipal != prev_user)
- Thread.CurrentPrincipal = prev_user;
- #endif
- if (prev_appui_culture != null && prev_appui_culture != th.CurrentUICulture)
- th.CurrentUICulture = prev_appui_culture;
- if (prev_app_culture != null && prev_app_culture != th.CurrentCulture)
- th.CurrentCulture = prev_app_culture;
- #if !TARGET_J2EE
- HttpRuntime.TimeoutManager.Remove (context);
- #endif
- context = null;
- session = null;
- HttpContext.Current = null;
- }
- void Start (object x)
- {
- InitOnce (true);
- PreStart ();
- pipeline = Pipeline ();
- Tick ();
- }
-
- // Used by HttpServerUtility.Execute
- internal IHttpHandler GetHandler (HttpContext context)
- {
- HttpRequest request = context.Request;
- string verb = request.RequestType;
- string url = request.FilePath;
-
- IHttpHandler handler = null;
- #if NET_2_0
- HttpHandlersSection section = (HttpHandlersSection) WebConfigurationManager.GetSection ("system.web/httpHandlers");
- object o = section.LocateHandler (verb, url);
- #else
- HandlerFactoryConfiguration factory_config = (HandlerFactoryConfiguration) HttpContext.GetAppConfig ("system.web/httpHandlers");
- object o = factory_config.LocateHandler (verb, url);
- #endif
- factory = o as IHttpHandlerFactory;
-
- if (factory == null) {
- handler = (IHttpHandler) o;
- } else {
- handler = factory.GetHandler (context, verb, url, request.PhysicalPath);
- }
- context.Handler = handler;
- return handler;
- }
-
- void IHttpHandler.ProcessRequest (HttpContext context)
- {
- begin_iar = null;
- this.context = context;
- done.Reset ();
- Start (null);
- done.WaitOne ();
- }
- //
- // This is used by FireOnAppStart, when we init the application
- // as the context is required to be set at that point (the user
- // might call methods that require it on that hook).
- //
- internal void SetContext (HttpContext context)
- {
- this.context = context;
- }
- internal void SetSession (HttpSessionState session)
- {
- this.session = session;
- }
- IAsyncResult IHttpAsyncHandler.BeginProcessRequest (HttpContext context, AsyncCallback cb, object extraData)
- {
- this.context = context;
- done.Reset ();
-
- begin_iar = new AsyncRequestState (done, cb, extraData);
- #if TARGET_JVM
- if (true)
- #else
- if (Thread.CurrentThread.IsThreadPoolThread)
- #endif
- Start (null);
- else
- ThreadPool.QueueUserWorkItem (new WaitCallback (Start), null);
-
- return begin_iar;
- }
- void IHttpAsyncHandler.EndProcessRequest (IAsyncResult result)
- {
- if (!result.IsCompleted)
- result.AsyncWaitHandle.WaitOne ();
- begin_iar = null;
- }
- public virtual void Init ()
- {
- }
- bool IHttpHandler.IsReusable {
- get {
- return true;
- }
- }
-
- #region internals
- internal void ClearError ()
- {
- context.ClearError ();
- }
- bool RedirectErrorPage (string error_page)
- {
- if (context.Request.QueryString ["aspxerrorpath"] != null)
- return false;
- Response.Redirect (error_page + "?aspxerrorpath=" + Request.Path, false);
- return true;
- }
-
- bool RedirectCustomError ()
- {
- if (!context.IsCustomErrorEnabled)
- return false;
-
- #if NET_2_0
- CustomErrorsSection config = (CustomErrorsSection)WebConfigurationManager.GetSection ("system.web/customErrors");
- #else
- CustomErrorsConfig config = null;
- try {
- config = (CustomErrorsConfig) context.GetConfig ("system.web/customErrors");
- } catch { }
- #endif
-
- if (config == null) {
- if (context.ErrorPage != null)
- return RedirectErrorPage (context.ErrorPage);
-
- return false;
- }
-
- #if NET_2_0
- CustomError err = config.Errors [context.Response.StatusCode.ToString()];
- string redirect = err == null ? null : err.Redirect;
- #else
- string redirect = config [context.Response.StatusCode];
- #endif
- if (redirect == null) {
- redirect = context.ErrorPage;
- if (redirect == null)
- redirect = config.DefaultRedirect;
- }
-
- if (redirect == null)
- return false;
-
- return RedirectErrorPage (redirect);
- }
- #endregion
- }
- //
- // Based on Fritz' Onion's AsyncRequestState class for asynchronous IHttpAsyncHandlers
- //
- class AsyncRequestState : IAsyncResult {
- AsyncCallback cb;
- object cb_data;
- bool completed;
- ManualResetEvent complete_event = null;
-
- internal AsyncRequestState (ManualResetEvent complete_event, AsyncCallback cb, object cb_data)
- {
- this.cb = cb;
- this.cb_data = cb_data;
- this.complete_event = complete_event;
- }
- internal void Complete ()
- {
- completed = true;
- if (cb != null)
- cb (this);
-
- complete_event.Set ();
- }
- public object AsyncState {
- get {
- return cb_data;
- }
- }
- public bool CompletedSynchronously {
- get {
- return false;
- }
- }
- public bool IsCompleted {
- get {
- return completed;
- }
- }
- public WaitHandle AsyncWaitHandle {
- get {
- return complete_event;
- }
- }
- }
- #region Helper classes
-
- //
- // A wrapper to keep track of begin/end pairs
- //
- class AsyncInvoker {
- public BeginEventHandler begin;
- public EndEventHandler end;
- public object data;
-
- public AsyncInvoker (BeginEventHandler bh, EndEventHandler eh, object d)
- {
- begin = bh;
- end = eh;
- data = d;
- }
- public AsyncInvoker (BeginEventHandler bh, EndEventHandler eh)
- {
- begin = bh;
- end = eh;
- }
-
- public void Invoke (object sender, EventArgs e)
- {
- throw new Exception ("This is just a dummy");
- }
- }
- #endregion
- }