Code:
/ FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / xsp / System / Web / Security / BackStopAuthenticationModule.cs / 4 / BackStopAuthenticationModule.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.Security { using System.Collections.Specialized; using System.Runtime.Serialization; using System.Security.Principal; using System.Security.Permissions; using System.Threading; using System.Web; ////// [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] public sealed class DefaultAuthenticationModule : IHttpModule { private DefaultAuthenticationEventHandler _eventHandler; ///[To be supplied.] ////// [SecurityPermission(SecurityAction.Demand, Unrestricted=true)] public DefaultAuthenticationModule() { } ////// Initializes a new instance of the ////// class. /// /// public event DefaultAuthenticationEventHandler Authenticate { add { // WOS 1709222: DefaultAuthentication_Authenticate is not supported in integrated mode. if (HttpRuntime.UseIntegratedPipeline) { throw new PlatformNotSupportedException(SR.GetString(SR.Method_Not_Supported_By_Iis_Integrated_Mode, "DefaultAuthentication.Authenticate")); } _eventHandler += value; } remove { _eventHandler -= value; } } ///[To be supplied.] ////// public void Dispose() { } ///[To be supplied.] ////// public void Init(HttpApplication app) { // adding this module back to IIS7 // it needs to run between Windows auth in PostAuthn // and RoleManager (or anyone else who needs the principal) // so ordering is important // If the subscribed event changes, WindowsAuthenticationModule // needs work, too. if (HttpRuntime.UseIntegratedPipeline) { app.PostAuthenticateRequest += new EventHandler(this.OnEnter); } else { app.DefaultAuthentication += new EventHandler(this.OnEnter); } } //////////////////////////////////////////////////////////// // OnAuthenticate: Custom Authentication modules can override // this method to create a custom IPrincipal object from // a DefaultIdentity void OnAuthenticate(DefaultAuthenticationEventArgs e) { //////////////////////////////////////////////////////////// // If there are event handlers, invoke the handlers if (_eventHandler != null) { _eventHandler(this, e); } } //////////////////////////////////////////////////////////// // AddOnAuthenticate and RemoveOnAuthenticate: Use these // methods to hook up event handlers to handle the // OnAuthenticate Event void OnEnter(Object source, EventArgs eventArgs) { HttpApplication app; HttpContext context; app = (HttpApplication)source; context = app.Context; //////////////////////////////////////////////////////////// // Step 1: Check if authentication failed if (context.Response.StatusCode > 200) { // Invalid credentials if (context.Response.StatusCode == 401) WriteErrorMessage(context); app.CompleteRequest(); return; } //////////////////////////////////////////////////////////// // Step 2: If no auth module has created an IPrincipal, then fire // OnAuthentication event if (context.User == null) { OnAuthenticate (new DefaultAuthenticationEventArgs(context) ); if (context.Response.StatusCode > 200) { // Invalid credentials if (context.Response.StatusCode == 401) WriteErrorMessage(context); app.CompleteRequest(); return; } } //////////////////////////////////////////////////////////// // Step 3: Attach an anonymous user to this request, if none // of the authentication modules created a user if (context.User == null) { context.SetPrincipalNoDemand(new GenericPrincipal(new GenericIdentity(String.Empty, String.Empty), new String[0]), false /*needToSetNativePrincipal*/); } Thread.CurrentPrincipal = context.User; } ///////////////////////////////////////////////////////////////////////////// void WriteErrorMessage(HttpContext context) { context.Response.Write(AuthFailedErrorFormatter.GetErrorText()); // In Integrated pipeline, ask for handler headers to be generated. This would be unnecessary // if we just threw an access denied exception, and used the standard error mechanism context.Response.GenerateResponseHeadersForHandler(); } } ////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////// internal class AuthFailedErrorFormatter : ErrorFormatter { private static string _strErrorText; private static object _syncObject = new object(); internal AuthFailedErrorFormatter() { } internal /*public*/ static string GetErrorText() { if (_strErrorText != null) return _strErrorText; lock(_syncObject) { if (_strErrorText == null) _strErrorText = (new AuthFailedErrorFormatter()).GetErrorMessage(); } return _strErrorText; } protected override string ErrorTitle { get { return SR.GetString(SR.Assess_Denied_Title);} } protected override string Description { get { return SR.GetString(SR.Assess_Denied_Description1); //"An error occurred while accessing the resources required to serve this request. This typically happens when you provide the wrong user-name and/or password."; } } protected override string MiscSectionTitle { get { return SR.GetString(SR.Assess_Denied_MiscTitle1);} //"Error message 401.1";} } protected override string MiscSectionContent { get { string miscContent = SR.GetString(SR.Assess_Denied_MiscContent1); AdaptiveMiscContent.Add(miscContent); return miscContent; //return "Logon credentials provided were not recognized. Make sure you are providing the correct user-name and password. Otherwise, ask the web server's administrator for help."; } } protected override string ColoredSquareTitle { get { return null;} } protected override string ColoredSquareContent { get { return null;} } protected override bool ShowSourceFileInfo { get { return false;} } } }[To be supplied.] ///
Link Menu

This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- ListViewInsertionMark.cs
- HttpCookie.cs
- WaveHeader.cs
- PropertyEmitter.cs
- ChildrenQuery.cs
- WeakEventTable.cs
- PtsHost.cs
- ColumnResizeAdorner.cs
- HotCommands.cs
- ResourceDisplayNameAttribute.cs
- XmlBinaryReader.cs
- ExecutionContext.cs
- bindurihelper.cs
- KeyToListMap.cs
- DateRangeEvent.cs
- ArithmeticException.cs
- WebUtility.cs
- HealthMonitoringSection.cs
- SeverityFilter.cs
- WindowsListViewItem.cs
- DBSchemaTable.cs
- WindowsFormsSectionHandler.cs
- ItemChangedEventArgs.cs
- AppDomainAttributes.cs
- BooleanExpr.cs
- MessageContractExporter.cs
- SecurityContextCookieSerializer.cs
- SmiSettersStream.cs
- InternalConfigEventArgs.cs
- StreamWithDictionary.cs
- ImageAnimator.cs
- Selector.cs
- WarningException.cs
- StatusBarPanelClickEvent.cs
- SystemFonts.cs
- DrawingGroup.cs
- RepeatInfo.cs
- TraceContextRecord.cs
- CapiSafeHandles.cs
- WSTransactionSection.cs
- NonSerializedAttribute.cs
- EncryptedPackage.cs
- ScriptingAuthenticationServiceSection.cs
- HMACSHA384.cs
- Hashtable.cs
- SoapProtocolImporter.cs
- StandardOleMarshalObject.cs
- ActiveDocumentEvent.cs
- ServiceInfoCollection.cs
- StreamResourceInfo.cs
- ResXBuildProvider.cs
- IteratorFilter.cs
- CalloutQueueItem.cs
- DataConnectionHelper.cs
- ParentQuery.cs
- HashCodeCombiner.cs
- ActiveXHelper.cs
- _SSPIWrapper.cs
- BitmapEffectInput.cs
- FormViewPagerRow.cs
- CssClassPropertyAttribute.cs
- EntityModelSchemaGenerator.cs
- MessageQueueConverter.cs
- BigIntegerStorage.cs
- SID.cs
- RSACryptoServiceProvider.cs
- RawUIStateInputReport.cs
- FullTextState.cs
- IconBitmapDecoder.cs
- PageSettings.cs
- Double.cs
- _DynamicWinsockMethods.cs
- TripleDESCryptoServiceProvider.cs
- NavigationWindowAutomationPeer.cs
- VoiceChangeEventArgs.cs
- Evaluator.cs
- ButtonField.cs
- TextTreeRootNode.cs
- DataSourceControl.cs
- MimeTypeMapper.cs
- PreviewPrintController.cs
- SQlBooleanStorage.cs
- AsymmetricKeyExchangeDeformatter.cs
- DateTimeOffsetStorage.cs
- FunctionQuery.cs
- InstanceDataCollection.cs
- ApplicationProxyInternal.cs
- XDRSchema.cs
- CalendarDay.cs
- counter.cs
- LayoutEvent.cs
- WebPartConnectionsCancelVerb.cs
- SqlLiftWhereClauses.cs
- TrackingStringDictionary.cs
- dataobject.cs
- TabItemWrapperAutomationPeer.cs
- UInt16Storage.cs
- KeyToListMap.cs
- WebPartCatalogAddVerb.cs
- _LazyAsyncResult.cs