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
- ExpressionBindingCollection.cs
- Error.cs
- ArrangedElementCollection.cs
- ListenerElementsCollection.cs
- objectquery_tresulttype.cs
- Latin1Encoding.cs
- ProcessProtocolHandler.cs
- ServiceDescriptionImporter.cs
- InvalidEnumArgumentException.cs
- ProcessMonitor.cs
- XmlWriterTraceListener.cs
- SelectionProcessor.cs
- RequestCachingSection.cs
- NullToBooleanConverter.cs
- NumericUpDown.cs
- HttpRequestTraceRecord.cs
- CustomAttribute.cs
- AstTree.cs
- ToolBarButton.cs
- QilLoop.cs
- SafeNativeMethods.cs
- ApplicationDirectory.cs
- HyperlinkAutomationPeer.cs
- TableRow.cs
- PreProcessInputEventArgs.cs
- ObjectStateFormatter.cs
- PeerNameRegistration.cs
- QueryOptionExpression.cs
- BitmapFrameDecode.cs
- TypeInformation.cs
- _SafeNetHandles.cs
- wmiprovider.cs
- WriterOutput.cs
- SymbolPair.cs
- QuotaExceededException.cs
- SafePipeHandle.cs
- ExpressionsCollectionConverter.cs
- WebRequestModulesSection.cs
- XmlDataSourceView.cs
- PersonalizationStateInfo.cs
- ErrorWebPart.cs
- PackagePartCollection.cs
- MemberHolder.cs
- DataGrid.cs
- TreeViewItemAutomationPeer.cs
- DetailsViewInsertedEventArgs.cs
- ExtendedTransformFactory.cs
- BigInt.cs
- WarningException.cs
- QilUnary.cs
- Drawing.cs
- PenCursorManager.cs
- ExpressionList.cs
- CatalogPartCollection.cs
- XmlUrlResolver.cs
- ActivityDesignerResources.cs
- BindingExpressionUncommonField.cs
- ContainerVisual.cs
- AnyReturnReader.cs
- SpoolingTaskBase.cs
- FtpCachePolicyElement.cs
- ConstraintManager.cs
- MissingManifestResourceException.cs
- ArcSegment.cs
- SqlEnums.cs
- RunWorkerCompletedEventArgs.cs
- Registry.cs
- CallbackValidator.cs
- ArrayHelper.cs
- WebResourceUtil.cs
- LongMinMaxAggregationOperator.cs
- LockedAssemblyCache.cs
- VBCodeProvider.cs
- Array.cs
- TextModifier.cs
- JournalEntryStack.cs
- PropertyFilterAttribute.cs
- IconConverter.cs
- FunctionImportMapping.cs
- SimpleHandlerFactory.cs
- ProfileInfo.cs
- DragDropManager.cs
- MobileControlDesigner.cs
- X509SecurityTokenAuthenticator.cs
- Label.cs
- BrowserCapabilitiesFactory.cs
- BrowserDefinitionCollection.cs
- ProcessInputEventArgs.cs
- RestrictedTransactionalPackage.cs
- DataGridViewCellErrorTextNeededEventArgs.cs
- Classification.cs
- QilGenerator.cs
- CharUnicodeInfo.cs
- FixedDSBuilder.cs
- WindowsButton.cs
- IncomingWebResponseContext.cs
- MultilineStringConverter.cs
- DataException.cs
- GenericEnumConverter.cs
- WindowsGraphicsWrapper.cs