mcs/class/corlib/System.Security.Policy/Publisher.cs

   1 //
   2 // Publisher.cs: Publisher Policy using X509 Certificate
   3 //
   4 // Author:
   5 //      Sebastien Pouliot  <sebastien@ximian.com>
   6 //
   7 // (C) 2002, 2003 Motus Technologies Inc. (http://www.motus.com)
   8 // Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
   9 //
  10 // Permission is hereby granted, free of charge, to any person obtaining
  11 // a copy of this software and associated documentation files (the
  12 // "Software"), to deal in the Software without restriction, including
  13 // without limitation the rights to use, copy, modify, merge, publish,
  14 // distribute, sublicense, and/or sell copies of the Software, and to
  15 // permit persons to whom the Software is furnished to do so, subject to
  16 // the following conditions:
  17 //
  18 // The above copyright notice and this permission notice shall be
  19 // included in all copies or substantial portions of the Software.
  20 //
  21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  22 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  23 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  24 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  25 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  26 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  27 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28 //
  29
  30 using System.Security.Cryptography.X509Certificates;
  31 using System.Security.Permissions;
  32 using System.Runtime.InteropServices;
  33
  34 namespace System.Security.Policy {
  35
  36         [Serializable]
  37         [ComVisible (true)]
  38         public sealed class Publisher :
  39 #if NET_4_0
  40                 EvidenceBase,
  41 #endif
  42                 IIdentityPermissionFactory, IBuiltInEvidence {
  43
  44                 private X509Certificate m_cert;
  45
  46                 public Publisher (X509Certificate cert)
  47                 {
  48                         if (cert == null)
  49                                 throw new ArgumentNullException ("cert");
  50                         if (cert.GetHashCode () == 0)
  51                                 throw new ArgumentException ("cert");
  52                         m_cert = cert;
  53                 }
  54
  55                 public X509Certificate Certificate {
  56                         get {
  57                                 if (m_cert.GetHashCode () == 0) {
  58                                         throw new ArgumentException ("m_cert");
  59                                 }
  60                                 return m_cert;
  61                         }
  62                 }
  63
  64                 public object Copy ()
  65                 {
  66                         return new Publisher (m_cert);
  67                 }
  68
  69                 public IPermission CreateIdentityPermission (Evidence evidence)
  70                 {
  71                         return new PublisherIdentityPermission (m_cert);
  72                 }
  73
  74                 public override bool Equals (object o)
  75                 {
  76                         Publisher p = (o as Publisher);
  77                         if (p == null)
  78                                 throw new ArgumentException ("o", Locale.GetText ("not a Publisher instance."));
  79                         return m_cert.Equals (p.Certificate);
  80                 }
  81
  82                 public override int GetHashCode ()
  83                 {
  84                         return m_cert.GetHashCode ();
  85                 }
  86
  87                 public override string ToString ()
  88                 {
  89                         SecurityElement se = new SecurityElement ("System.Security.Policy.Publisher");
  90                         se.AddAttribute ("version", "1");
  91                         SecurityElement cert = new SecurityElement ("X509v3Certificate");
  92                         string data = m_cert.GetRawCertDataString ();
  93                         if (data != null)
  94                                 cert.Text = data;
  95                         se.AddChild (cert);
  96                         return se.ToString ();
  97                 }
  98
  99                 // interface IBuiltInEvidence
 100
 101                 int IBuiltInEvidence.GetRequiredSize (bool verbose)
 102                 {
 103                         return (verbose ? 3 : 1) + m_cert.GetRawCertData ().Length;
 104                 }
 105
 106                 [MonoTODO ("IBuiltInEvidence")]
 107                 int IBuiltInEvidence.InitFromBuffer (char [] buffer, int position)
 108                 {
 109                         return 0;
 110                 }
 111
 112                 [MonoTODO ("IBuiltInEvidence")]
 113                 int IBuiltInEvidence.OutputToBuffer (char [] buffer, int position, bool verbose)
 114                 {
 115                         return 0;
 116                 }
 117         }
 118 }