mcs/class/referencesource/System.IdentityModel/System/ServiceModel/Security/SecurityContextKeyIdentifierClause.cs

   1 //-----------------------------------------------------------------------------
   2 // Copyright (c) Microsoft Corporation.  All rights reserved.
   3 //-----------------------------------------------------------------------------
   4 namespace System.ServiceModel.Security
   5 {
   6     using System.Globalization;
   7     using System.IdentityModel.Tokens;
   8     using System.Runtime.CompilerServices;
   9     using System.Xml;
  10     using DiagnosticUtility = System.IdentityModel.DiagnosticUtility;
  11
  12     [TypeForwardedFrom( "System.ServiceModel, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" )]
  13     public class SecurityContextKeyIdentifierClause : SecurityKeyIdentifierClause
  14     {
  15         readonly UniqueId contextId;
  16         readonly UniqueId generation;
  17
  18         public SecurityContextKeyIdentifierClause(UniqueId contextId)
  19             : this(contextId, null)
  20         {
  21         }
  22
  23         public SecurityContextKeyIdentifierClause(UniqueId contextId, UniqueId generation)
  24             : this(contextId, generation, null, 0)
  25         {
  26         }
  27
  28         public SecurityContextKeyIdentifierClause(UniqueId contextId, UniqueId generation, byte[] derivationNonce, int derivationLength)
  29             : base(null, derivationNonce, derivationLength)
  30         {
  31             if (contextId == null)
  32             {
  33                 throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("contextId");
  34             }
  35             this.contextId = contextId;
  36             this.generation = generation;
  37         }
  38
  39         public UniqueId ContextId
  40         {
  41             get { return this.contextId; }
  42         }
  43
  44         public UniqueId Generation
  45         {
  46             get { return this.generation; }
  47         }
  48
  49         public override bool Matches(SecurityKeyIdentifierClause keyIdentifierClause)
  50         {
  51             SecurityContextKeyIdentifierClause that = keyIdentifierClause as SecurityContextKeyIdentifierClause;
  52
  53             // PreSharp Bug: Parameter 'that' to this public method must be validated: A null-dereference can occur here.
  54             #pragma warning suppress 56506
  55             return ReferenceEquals(this, that) || (that != null && that.Matches(this.contextId, this.generation));
  56         }
  57
  58         public bool Matches(UniqueId contextId, UniqueId generation)
  59         {
  60             return contextId == this.contextId && generation == this.generation;
  61         }
  62
  63         public override string ToString()
  64         {
  65             return string.Format(CultureInfo.InvariantCulture, "SecurityContextKeyIdentifierClause(ContextId = '{0}', Generation = '{1}')",
  66                 this.ContextId, this.Generation);
  67         }
  68     }
  69 }