Code:
/ 4.0 / 4.0 / 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. //------------------------------------------------------------------------------ //// 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
![Network programming in C#, Network Programming in VB.NET, Network Programming in .NET](/images/book.jpg)
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- SqlPersonalizationProvider.cs
- SiteMapDesignerDataSourceView.cs
- formatter.cs
- CustomValidator.cs
- DbConnectionPoolOptions.cs
- ThumbButtonInfo.cs
- assertwrapper.cs
- ScriptControl.cs
- CommandHelpers.cs
- Style.cs
- ipaddressinformationcollection.cs
- TempFiles.cs
- MouseButtonEventArgs.cs
- RegionIterator.cs
- MethodCallExpression.cs
- EndpointDiscoveryMetadata11.cs
- DataGridViewCheckBoxColumn.cs
- LocationSectionRecord.cs
- RegexGroup.cs
- ParseChildrenAsPropertiesAttribute.cs
- ConfigXmlText.cs
- FacetEnabledSchemaElement.cs
- BaseCollection.cs
- ProjectionPath.cs
- RolePrincipal.cs
- TwoPhaseCommit.cs
- Profiler.cs
- CacheMemory.cs
- RSAPKCS1KeyExchangeFormatter.cs
- XmlNotation.cs
- RelatedEnd.cs
- ModelVisual3D.cs
- altserialization.cs
- SymmetricKeyWrap.cs
- Rfc2898DeriveBytes.cs
- CacheEntry.cs
- RemoteX509Token.cs
- ParseChildrenAsPropertiesAttribute.cs
- Graphics.cs
- ZoneButton.cs
- CompoundFileDeflateTransform.cs
- ConfigXmlDocument.cs
- DefaultExpressionVisitor.cs
- SapiInterop.cs
- SystemFonts.cs
- ProfileSettingsCollection.cs
- Material.cs
- BaseUriHelper.cs
- ProfileProvider.cs
- HeaderUtility.cs
- AndAlso.cs
- LineProperties.cs
- mediapermission.cs
- DefaultBinder.cs
- TaskFormBase.cs
- DataServiceRequestException.cs
- IisTraceListener.cs
- DefaultMemberAttribute.cs
- SymDocumentType.cs
- UIElementPropertyUndoUnit.cs
- Trigger.cs
- EncryptedReference.cs
- TableLayoutSettingsTypeConverter.cs
- MetadataArtifactLoaderComposite.cs
- AnimationClock.cs
- TreeViewHitTestInfo.cs
- GenerateHelper.cs
- DigitShape.cs
- SecureConversationServiceElement.cs
- OleDbWrapper.cs
- UnaryExpressionHelper.cs
- InvalidFilterCriteriaException.cs
- ErrorWrapper.cs
- DataTemplateKey.cs
- ProcessInfo.cs
- DiscriminatorMap.cs
- EmptyQuery.cs
- SiteMapNodeItem.cs
- ToolStripPanelCell.cs
- ClientRolePrincipal.cs
- StatusBarAutomationPeer.cs
- StateManagedCollection.cs
- GridView.cs
- SqlDataSourceFilteringEventArgs.cs
- DependencyPropertyValueSerializer.cs
- RegexCompilationInfo.cs
- BindingElementExtensionElement.cs
- Select.cs
- TextShapeableCharacters.cs
- BitmapEffectInputConnector.cs
- XmlReflectionMember.cs
- QilReference.cs
- MessageFilterTable.cs
- Range.cs
- EncoderFallback.cs
- UIElement.cs
- ScrollData.cs
- FormatterServices.cs
- GlobalizationAssembly.cs
- ProviderCollection.cs