Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / Net / System / Net / _BasicClient.cs / 1305376 / _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 // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- CustomAttributeFormatException.cs
- EndPoint.cs
- Freezable.cs
- ValidationErrorEventArgs.cs
- DataControlLinkButton.cs
- XmlSchemaFacet.cs
- CreateUserErrorEventArgs.cs
- LongAverageAggregationOperator.cs
- UrlMapping.cs
- CharacterMetrics.cs
- DesignerObject.cs
- RayMeshGeometry3DHitTestResult.cs
- ListBoxAutomationPeer.cs
- DllNotFoundException.cs
- ErrorRuntimeConfig.cs
- ScopelessEnumAttribute.cs
- IPAddressCollection.cs
- NativeMethods.cs
- ListItemCollection.cs
- XmlSchemaSimpleTypeRestriction.cs
- FormsAuthenticationUser.cs
- SqlDuplicator.cs
- FlowDocumentPageViewerAutomationPeer.cs
- PackUriHelper.cs
- ComponentCommands.cs
- CacheManager.cs
- CustomErrorCollection.cs
- HttpStreams.cs
- AdornerLayer.cs
- MethodBody.cs
- MenuItemStyleCollectionEditor.cs
- RectValueSerializer.cs
- TemplateColumn.cs
- WebPartDescriptionCollection.cs
- UpWmlMobileTextWriter.cs
- Style.cs
- QuaternionValueSerializer.cs
- FunctionQuery.cs
- SoapBinding.cs
- ValidationEventArgs.cs
- RuleProcessor.cs
- HttpHeaderCollection.cs
- MappingItemCollection.cs
- TemplateContent.cs
- UriSectionReader.cs
- ObjectDataSourceDisposingEventArgs.cs
- AdapterDictionary.cs
- HttpModuleCollection.cs
- MultiBinding.cs
- ManipulationDevice.cs
- XmlSchemaSimpleContentExtension.cs
- DbProviderSpecificTypePropertyAttribute.cs
- StateDesigner.LayoutSelectionGlyph.cs
- PerformanceCounterPermission.cs
- UrlRoutingHandler.cs
- RequiredFieldValidator.cs
- XmlNodeChangedEventArgs.cs
- ObjectViewListener.cs
- X509CertificateTrustedIssuerElement.cs
- ConstructorBuilder.cs
- ThumbAutomationPeer.cs
- sqlmetadatafactory.cs
- WebPartTracker.cs
- XmlDataCollection.cs
- Trustee.cs
- ListViewTableCell.cs
- AppDomainManager.cs
- tooltip.cs
- Propagator.cs
- ToolboxItemLoader.cs
- DataPagerFieldCollection.cs
- XmlEntityReference.cs
- FixedPageProcessor.cs
- IsolatedStorageException.cs
- mansign.cs
- XmlLangPropertyAttribute.cs
- Int64Converter.cs
- WmlValidatorAdapter.cs
- AnimationException.cs
- ByteStreamGeometryContext.cs
- MultiView.cs
- BindStream.cs
- EventDescriptorCollection.cs
- SignerInfo.cs
- SplineQuaternionKeyFrame.cs
- ZipIOExtraField.cs
- ObjectHandle.cs
- CalendarDay.cs
- BezierSegment.cs
- SqlDataSourceDesigner.cs
- ColumnWidthChangingEvent.cs
- QueueAccessMode.cs
- RegexRunner.cs
- MenuItemBinding.cs
- CompoundFileStreamReference.cs
- FilterEventArgs.cs
- Vector.cs
- SQLRoleProvider.cs
- Set.cs
- _ConnectionGroup.cs