Code:
/ FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / Net / System / Net / _BasicClient.cs / 1 / _BasicClient.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Net { using System.Text; using System.Globalization; using System.Security.Permissions; internal class BasicClient : IAuthenticationModule { internal const string AuthType = "Basic"; internal static string Signature = AuthType.ToLower(CultureInfo.InvariantCulture); internal static int SignatureSize = Signature.Length; public Authorization Authenticate(string challenge, WebRequest webRequest, ICredentials credentials) { GlobalLog.Print("BasicClient::Authenticate(): " + challenge); GlobalLog.Assert(credentials != null, "BasicClient::Authenticate()|credentials == null"); #if !FEATURE_PAL if (credentials==null || credentials is SystemNetworkCredential) { #else if (credentials==null) { #endif // !FEATURE_PAL return null; } HttpWebRequest httpWebRequest = webRequest as HttpWebRequest; GlobalLog.Assert(httpWebRequest != null, "BasicClient::Authenticate()|httpWebRequest == null"); if (httpWebRequest==null || httpWebRequest.ChallengedUri==null) { // // there has been no challenge: // 1) the request never went on the wire // 2) somebody other than us is calling into AuthenticationManager // return null; } int index = AuthenticationManager.FindSubstringNotInQuotes(challenge, Signature); if (index < 0) { return null; } return Lookup(httpWebRequest, credentials); } public bool CanPreAuthenticate { get { return true; } } public Authorization PreAuthenticate(WebRequest webRequest, ICredentials credentials) { GlobalLog.Print("BasicClient::PreAuthenticate()"); GlobalLog.Assert(credentials != null, "BasicClient::Authenticate()|credentials == null"); #if !FEATURE_PAL if (credentials==null || credentials is SystemNetworkCredential) { #else if (credentials==null) { #endif // !FEATURE_PAL return null; } HttpWebRequest httpWebRequest = webRequest as HttpWebRequest; GlobalLog.Assert(httpWebRequest != null, "BasicClient::Authenticate()|httpWebRequest == null"); if (httpWebRequest==null) { return null; } return Lookup(httpWebRequest, credentials); } public string AuthenticationType { get { return AuthType; } } private Authorization Lookup(HttpWebRequest httpWebRequest, ICredentials credentials) { GlobalLog.Print("BasicClient::Lookup(): ChallengedUri:" + httpWebRequest.ChallengedUri.ToString()); NetworkCredential NC = credentials.GetCredential(httpWebRequest.ChallengedUri, Signature); GlobalLog.Print("BasicClient::Lookup() GetCredential() returns:" + ValidationHelper.ToString(NC)); if (NC==null) { return null; } ICredentialPolicy policy = AuthenticationManager.CredentialPolicy; if (policy != null && !policy.ShouldSendCredential(httpWebRequest.ChallengedUri, httpWebRequest, NC, this)) return null; string username = NC.InternalGetUserName(); string domain = NC.InternalGetDomain(); if (ValidationHelper.IsBlankString(username)) { return null; } string rawString = ((!ValidationHelper.IsBlankString(domain)) ? (domain + "\\") : "") + username + ":" + NC.InternalGetPassword(); // The response is an "Authorization:" header where the value is // the text "Basic" followed by BASE64 encoded (as defined by RFC1341) value byte[] bytes = EncodingRightGetBytes(rawString); string responseHeader = BasicClient.AuthType + " " + Convert.ToBase64String(bytes); return new Authorization(responseHeader, true); } internal static byte[] EncodingRightGetBytes(string rawString) { GlobalLog.Enter("BasicClient::EncodingRightGetBytes", "[" + rawString.Length.ToString() + ":" + rawString + "]"); // // in order to know if there will not be any '?' translations (which means // we should use the Default Encoding) we need to attempt encoding and then decoding. //this is a limitation only on win9x, if we ever drop support for this platform there might be // a more efficient way of doing this. // GlobalLog.Print("BasicClient::EncodingRightGetBytes(): Default Encoding is:" + Encoding.Default.EncodingName); byte[] bytes = Encoding.Default.GetBytes(rawString); string rawCopy = Encoding.Default.GetString(bytes); bool canMapToCurrentCodePage = string.Compare(rawString, rawCopy, StringComparison.Ordinal)==0; GlobalLog.Print("BasicClient::EncodingRightGetBytes(): canMapToCurrentCodePage:" + canMapToCurrentCodePage.ToString()); //// if mapping to the current code page leaves characters out of the // [0x00, 0xFF] range, then we need to use the new encoding that IIS6.0 // will support. do it when they decide it's good enough. // if (!canMapToCurrentCodePage) { //// for now throw. when IIS 6.0 adds support test it. // GlobalLog.LeaveException("BasicClient::EncodingRightGetBytes", ExceptionHelper.MethodNotSupportedException); throw ExceptionHelper.MethodNotSupportedException; /* GlobalLog.Print("BasicClient::EncodingRightGetBytes(): using:" + Encoding.UTF8.EncodingName); bytes = Encoding.UTF8.GetBytes(rawString); string blob = "=?utf-8?B?" + Convert.ToBase64String(bytes) + "?="; bytes = Encoding.ASCII.GetBytes(blob); */ } GlobalLog.Dump(bytes); GlobalLog.Leave("BasicClient::EncodingRightGetBytes", bytes.Length.ToString()); return bytes; } }; // class BasicClient } // namespace System.Net
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- Context.cs
- SystemKeyConverter.cs
- TableStyle.cs
- CaretElement.cs
- AssemblyAttributes.cs
- EditorPart.cs
- TrimSurroundingWhitespaceAttribute.cs
- VarRefManager.cs
- ObjectFactoryCodeDomTreeGenerator.cs
- WmlLinkAdapter.cs
- updateconfighost.cs
- EdmConstants.cs
- TypographyProperties.cs
- Decoder.cs
- RuleAction.cs
- BridgeDataReader.cs
- ParentUndoUnit.cs
- Blend.cs
- QilLoop.cs
- ListBox.cs
- FloaterParagraph.cs
- ListItemCollection.cs
- RegexRunnerFactory.cs
- ZipIOBlockManager.cs
- InvocationExpression.cs
- SqlAggregateChecker.cs
- SafeThreadHandle.cs
- LayoutEditorPart.cs
- VisualBasic.cs
- UIElementParaClient.cs
- MatrixTransform3D.cs
- TemplateXamlTreeBuilder.cs
- NumberFunctions.cs
- WebPartManager.cs
- JapaneseLunisolarCalendar.cs
- base64Transforms.cs
- ExpressionWriter.cs
- EllipseGeometry.cs
- CqlIdentifiers.cs
- ReferencedType.cs
- TextComposition.cs
- CompiledAction.cs
- SplitterEvent.cs
- ListViewGroupConverter.cs
- CommandValueSerializer.cs
- GroupLabel.cs
- NetworkAddressChange.cs
- BitmapDownload.cs
- TextBoxRenderer.cs
- ListenDesigner.cs
- EventLogEntry.cs
- RtfToken.cs
- MembershipValidatePasswordEventArgs.cs
- DrawingBrush.cs
- DesignerForm.cs
- WSHttpBinding.cs
- DataBoundControl.cs
- HierarchicalDataBoundControlAdapter.cs
- FontNameEditor.cs
- FormatPage.cs
- DrawingContextWalker.cs
- Italic.cs
- ReferenceConverter.cs
- EncryptedData.cs
- FrameworkContextData.cs
- DbConnectionPool.cs
- PartialTrustVisibleAssembliesSection.cs
- ResourceExpressionBuilder.cs
- GridPatternIdentifiers.cs
- HandlerFactoryWrapper.cs
- ApplicationDirectory.cs
- CollectionDataContract.cs
- AsymmetricKeyExchangeDeformatter.cs
- IIS7WorkerRequest.cs
- recordstatefactory.cs
- DataSourceCache.cs
- PageAdapter.cs
- HierarchicalDataBoundControlAdapter.cs
- RenderOptions.cs
- DataGridViewCellParsingEventArgs.cs
- KnownTypes.cs
- SystemIPGlobalStatistics.cs
- BinaryObjectReader.cs
- dtdvalidator.cs
- WebPartZoneBase.cs
- HttpClientCertificate.cs
- Walker.cs
- WindowShowOrOpenTracker.cs
- ObjectDataSource.cs
- RectAnimation.cs
- VectorCollectionConverter.cs
- ScriptRegistrationManager.cs
- RIPEMD160Managed.cs
- ParallelSeparator.xaml.cs
- BaseDataListDesigner.cs
- TracePayload.cs
- LateBoundBitmapDecoder.cs
- InputScope.cs
- HwndSource.cs
- FontFaceLayoutInfo.cs