Code:
/ WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / WCF / infocard / Client / System / IdentityModel / Selectors / CardSpaceSelector.cs / 1 / CardSpaceSelector.cs
//------------------------------------------------------------------------------ // Copyright (c) Microsoft Corporation. All rights reserved. //----------------------------------------------------------------------------- // // Presharp uses the c# pragma mechanism to supress its warnings. // These are not recognised by the base compiler so we need to explictly // disable the following warnings. See http://winweb/cse/Tools/PREsharp/userguide/default.asp // for details. // #pragma warning disable 1634, 1691 // unknown message, unknown pragma namespace System.IdentityModel.Selectors { using System; using System.IO; using System.Collections.Generic; using System.Collections.ObjectModel; using System.ComponentModel; using System.Runtime.InteropServices; using System.IdentityModel.Claims; using System.Text; using System.Xml; using System.IdentityModel.Tokens; using System.ServiceProcess; using System.Globalization; using System.Runtime.ConstrainedExecution; using System.Runtime.CompilerServices; using Microsoft.InfoCards.Diagnostics; using IDT = Microsoft.InfoCards.Diagnostics.InfoCardTrace; // // For common & resources // using Microsoft.InfoCards; // // Summary // This structure is the native version of the GenericXmlSecurityToken // // Remark // When adding new fields to this structure, add pointers to the end to make // sure that alignment is done correctly // [StructLayout( LayoutKind.Sequential )] struct RpcGenericXmlToken { public Int64 createDate; // Date the token was created on public Int64 expiryDate; // Date the token will expire on [MarshalAs( UnmanagedType.LPWStr )] public string xmlToken; // Token [MarshalAs( UnmanagedType.LPWStr )] public string internalTokenReference; // Internal Token reference [MarshalAs( UnmanagedType.LPWStr )] public string externalTokenReference; // External Token reference } // // Summary // This class implements the client API for the Infocard system // public static class CardSpaceSelector { // // The default quotas we apply to incoming xml messages // private static XmlDictionaryReaderQuotas DefaultQuotas = new XmlDictionaryReaderQuotas(); // // Used by infocard.exe as well. // internal const int MaxPolicyChainLength = 50; static CardSpaceSelector() { // // Quotas for xml readers // DefaultQuotas.MaxDepth = 32; // max depth of elements DefaultQuotas.MaxStringContentLength = 8192; // maximum string read DefaultQuotas.MaxArrayLength = 20 * 1024 * 1024; // maximum byte array DefaultQuotas.MaxBytesPerRead = 4096; // max start element tag DefaultQuotas.MaxNameTableCharCount = 16384; // max size of name table } // Summary // Request a security token from the infocard system // // Parameters // endPoint - The token recipient end point. // policy - Policy stating the requirements for the token. // requiredRemoteTokenIssuer - The returned token should be issued by this // specific issuer. // public static GenericXmlSecurityToken GetToken( XmlElement endpoint, IEnumerablepolicy, XmlElement requiredRemoteTokenIssuer, SecurityTokenSerializer tokenSerializer ) { if( null == endpoint ) { throw IDT.ThrowHelperArgumentNull( "endpoint" ); } if( null == policy ) { throw IDT.ThrowHelperArgumentNull( "policy" ); } if( null == tokenSerializer ) { throw IDT.ThrowHelperArgumentNull( "tokenSerializer" ); } Collection policyCollection = new Collection (); foreach( XmlElement element in policy ) { policyCollection.Add( element ); } return GetToken( new CardSpacePolicyElement[ ] { new CardSpacePolicyElement( endpoint, requiredRemoteTokenIssuer, policyCollection, null, 0, false ) }, tokenSerializer ); } // Summary // Request a security token from the infocard system // // Parameters // policyChain - an array of PolicyElements that describe the federated security chain that the client // needs a final token to unwind. // public static GenericXmlSecurityToken GetToken( CardSpacePolicyElement[ ] policyChain, SecurityTokenSerializer tokenSerializer ) { IDT.TraceDebug( "ICARDCLIENT: GetToken called with a policy chain of length {0}", policyChain.Length ); InfoCardProofToken proofToken = null; InternalRefCountedHandle nativeCryptoHandle = null; GenericXmlSecurityToken token = null; RpcGenericXmlToken infocardToken = new RpcGenericXmlToken(); SafeTokenHandle nativeToken = null; Int32 result = 0; if( null == policyChain || 0 == policyChain.Length ) { throw IDT.ThrowHelperArgumentNull( "policyChain" ); } if( null == tokenSerializer ) { throw IDT.ThrowHelperArgumentNull( "tokenSerializer" ); } if( null == tokenSerializer ) { throw IDT.ThrowHelperArgumentNull( "tokenSerializer" ); } try { RuntimeHelpers.PrepareConstrainedRegions(); bool mustRelease = false; try { } finally { // // The PolicyChain class will do the marshalling and native buffer management for us. // try { using( PolicyChain tmpChain = new PolicyChain( policyChain ) ) { IDT.TraceDebug( "ICARDCLIENT: PInvoking the native GetToken call" ); result = NativeMethods.GetToken( tmpChain.Length, tmpChain.DoMarshal(), out nativeToken, out nativeCryptoHandle ); } if( 0 == result ) { IDT.TraceDebug( "ICARDCLIENT: The PInvoke of GetToken succeeded" ); nativeToken.DangerousAddRef( ref mustRelease ); infocardToken = (RpcGenericXmlToken)Marshal.PtrToStructure( nativeToken.DangerousGetHandle(), typeof( RpcGenericXmlToken ) ); } } finally { if( mustRelease ) { nativeToken.DangerousRelease(); } } } if( 0 == result ) { using( ProofTokenCryptoHandle crypto = (ProofTokenCryptoHandle)CryptoHandle.Create( nativeCryptoHandle ) ) { proofToken = crypto.CreateProofToken(); } XmlDocument xmlDoc = new XmlDocument(); xmlDoc.LoadXml( infocardToken.xmlToken ); SecurityKeyIdentifierClause internalTokenReference = null; if( null!= infocardToken.internalTokenReference ) { internalTokenReference = tokenSerializer.ReadKeyIdentifierClause( CreateReaderWithQuotas( infocardToken.internalTokenReference ) ); } SecurityKeyIdentifierClause externalTokenReference = null; if( null != infocardToken.externalTokenReference ) { externalTokenReference = tokenSerializer.ReadKeyIdentifierClause( CreateReaderWithQuotas( infocardToken.externalTokenReference ) ); } IDT.TraceDebug( "ICARDCLIENT: Constructing a new GenericXmlSecurityToken" ); token = new GenericXmlSecurityToken( xmlDoc.DocumentElement, proofToken, DateTime.FromFileTimeUtc( infocardToken.createDate ), DateTime.FromFileTimeUtc( infocardToken.expiryDate ), internalTokenReference, externalTokenReference, null ); } else { IDT.TraceDebug( "ICARDCLIENT: The PInvoke of GetToken failed with a return code of {0}", result ); // // Convert the HRESULTS to exceptions // ExceptionHelper.ThrowIfCardSpaceException( ( int ) result ); throw IDT.ThrowHelperError( new CardSpaceException( SR.GetString( SR.ClientAPIInfocardError ) ) ); } } catch { if( null != nativeCryptoHandle ) { nativeCryptoHandle.Dispose(); } if( null != proofToken ) { proofToken.Dispose(); } throw; } finally { if( null != nativeToken ) { nativeToken.Dispose(); } } return token; } // // Summary // Start the management user interface // public static void Manage() { Int32 result = NativeMethods.ManageCardSpace(); // // Convert HRESULTS to errors // if( 0 != result ) { // // Convert the HRESULTS to exceptions // ExceptionHelper.ThrowIfCardSpaceException( ( int ) result ); throw IDT.ThrowHelperError( new CardSpaceException( SR.GetString( SR.ClientAPIInfocardError ) ) ); } } // // Summary // Start the import card user interface // public static void Import( string fileName ) { if( String.IsNullOrEmpty( fileName ) ) { throw IDT.ThrowHelperArgumentNull( "fileName" ); } IDT.TraceDebug( "Import Infocard has been called" ); Int32 result = NativeMethods.ImportInformationCard( fileName ); // // Convert HRESULTS to errors // if( 0 != result ) { // // Convert the HRESULTS to exceptions // ExceptionHelper.ThrowIfCardSpaceException( ( int ) result ); throw IDT.ThrowHelperError( new CardSpaceException( SR.GetString( SR.ClientAPIInfocardError ) ) ); } } // // Summary // Convert the XML data to a string // // Parameter // xml - The xml data to be converted into a string // // Returns // A string format of the XML // internal static string XmlToString( IEnumerable xml ) { StringBuilder builder = new StringBuilder(); foreach( XmlElement element in xml ) { if( null == element ) { throw IDT.ThrowHelperError( new ArgumentException( SR.GetString( SR.ClientAPIInvalidPolicy ) ) ); } builder.Append( element.OuterXml ); } return builder.ToString(); } private static XmlDictionaryReader CreateReaderWithQuotas( string root ) { UTF8Encoding utf8 = new UTF8Encoding(); byte[] rootbytes = utf8.GetBytes( root ); return XmlDictionaryReader.CreateTextReader( rootbytes , 0 , rootbytes.GetLength(0) , null ,DefaultQuotas, null); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. 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