class/System/System.Security.Cryptography.X509Certificates/X509Extension.cs

   1 //
   2 // System.Security.Cryptography.X509Certificates.X509Extension
   3 //
   4 // Author:
   5 //      Sebastien Pouliot  <sebastien@ximian.com>
   6 //      Tim Coleman (tim@timcoleman.com)
   7 //
   8 // (C) 2003 Motus Technologies Inc. (http://www.motus.com)
   9 // Copyright (C) Tim Coleman, 2004
  10 // Copyright (C) 2004-2005 Novell Inc. (http://www.novell.com)
  11 //
  12 // Permission is hereby granted, free of charge, to any person obtaining
  13 // a copy of this software and associated documentation files (the
  14 // "Software"), to deal in the Software without restriction, including
  15 // without limitation the rights to use, copy, modify, merge, publish,
  16 // distribute, sublicense, and/or sell copies of the Software, and to
  17 // permit persons to whom the Software is furnished to do so, subject to
  18 // the following conditions:
  19 //
  20 // The above copyright notice and this permission notice shall be
  21 // included in all copies or substantial portions of the Software.
  22 //
  23 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  27 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  28 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  29 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  30 //
  31
  32 #if NET_2_0 && SECURITY_DEP
  33
  34 using System.Text;
  35
  36 namespace System.Security.Cryptography.X509Certificates {
  37
  38         public class X509Extension : AsnEncodedData {
  39
  40                 private bool _critical;
  41
  42                 // constructors
  43
  44                 protected X509Extension ()
  45                 {
  46                 }
  47
  48                 public X509Extension (AsnEncodedData encodedExtension, bool critical)
  49                 {
  50 // Match MS             if (encodedExtension == null)
  51 //                              throw new ArgumentNullException ("encodedExtension");
  52                         if (encodedExtension.Oid == null)
  53                                 throw new ArgumentNullException ("encodedExtension.Oid");
  54
  55                         Oid = encodedExtension.Oid;
  56                         RawData = encodedExtension.RawData;
  57                         _critical = critical;
  58                 }
  59
  60                 public X509Extension (Oid oid, byte[] rawData, bool critical)
  61                 {
  62                         if (oid == null)
  63                                 throw new ArgumentNullException ("oid");
  64                         Oid = oid;
  65                         RawData = rawData;
  66                         _critical = critical;
  67                 }
  68
  69                 public X509Extension (string oid, byte[] rawData, bool critical)
  70                         : base (oid, rawData)
  71                 {
  72                         _critical = critical;
  73                 }
  74
  75                 // properties
  76
  77                 public bool Critical {
  78                         get { return _critical; }
  79                         set { _critical = value; }
  80                 }
  81
  82                 // methods
  83
  84                 public override void CopyFrom (AsnEncodedData asnEncodedData)
  85                 {
  86                         if (asnEncodedData == null)
  87                                 throw new ArgumentNullException ("encodedData");
  88
  89                         X509Extension ex = (asnEncodedData as X509Extension);
  90                         if (ex == null)
  91                                 throw new ArgumentException (Locale.GetText ("Expected a X509Extension instance."));
  92
  93                         base.CopyFrom (asnEncodedData);
  94                         // and we deal with critical
  95                         _critical = ex.Critical;
  96                 }
  97
  98                 // internal stuff
  99
 100                 // this version doesn't includes spaces between bytes and use uppercase hexadecimal values
 101                 internal string FormatUnkownData (byte[] data)
 102                 {
 103                         if ((data == null) || (data.Length == 0))
 104                                 return String.Empty;
 105
 106                         StringBuilder sb = new StringBuilder ();
 107                         for (int i=0; i < data.Length; i++) {
 108                                 sb.Append (data [i].ToString ("X2"));
 109                         }
 110                         return sb.ToString ();
 111                 }
 112         }
 113 }
 114
 115 #endif