class/System.IdentityModel/System.IdentityModel.Tokens/BinaryKeyIdentifierClause.cs

   1 //
   2 // BinaryKeyIdentifierClause.cs
   3 //
   4 // Author:
   5 //      Atsushi Enomoto <atsushi@ximian.com>
   6 //
   7 // Copyright (C) 2005-2006 Novell, Inc.  http://www.novell.com
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28 using System;
  29 using System.Collections.Generic;
  30 using System.Xml;
  31 using System.IdentityModel.Policy;
  32
  33 namespace System.IdentityModel.Tokens
  34 {
  35         public abstract class BinaryKeyIdentifierClause : SecurityKeyIdentifierClause
  36         {
  37                 protected BinaryKeyIdentifierClause (string clauseType, byte [] identificationData, bool cloneBuffer)
  38                         : this (clauseType, identificationData, cloneBuffer, null, 0)
  39                 {
  40                 }
  41
  42                 protected BinaryKeyIdentifierClause (string clauseType, byte [] identificationData, bool cloneBuffer, byte [] derivationNonce, int derivationLength)
  43                         : base (clauseType, derivationNonce, derivationLength)
  44                 {
  45                         this.data = cloneBuffer ?
  46                                 (byte []) identificationData.Clone () :
  47                                 identificationData;
  48                 }
  49
  50                 byte [] data;
  51
  52                 public byte [] GetBuffer ()
  53                 {
  54                         return (byte []) GetRawBuffer ().Clone ();
  55                 }
  56
  57                 public override bool Matches (SecurityKeyIdentifierClause clause)
  58                 {
  59                         BinaryKeyIdentifierClause other =
  60                                 clause as BinaryKeyIdentifierClause;
  61                         if (other == null)
  62                                 return false;
  63                         return Matches (other.GetRawBuffer ());
  64                 }
  65
  66                 public bool Matches (byte [] data)
  67                 {
  68                         return Matches (data, 0);
  69                 }
  70
  71                 public bool Matches (byte [] data, int offset)
  72                 {
  73                         if (data.Length + offset != this.data.Length)
  74                                 return false;
  75                         for (int i = 0; i < this.data.Length; i++)
  76                                 if (data [i + offset] != this.data [i])
  77                                         return false;
  78                         return true;
  79                 }
  80
  81                 protected byte [] GetRawBuffer ()
  82                 {
  83                         return data;
  84                 }
  85         }
  86 }