class/corlib/System.Security.Policy/StrongName.cs

   1 //
   2 // StrongName.cs: Strong Name
   3 //
   4 // Author:
   5 //      Sebastien Pouliot  <sebastien@ximian.com>
   6 //
   7 // (C) 2002 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.Permissions;
  31 using System.Runtime.InteropServices;
  32
  33 namespace System.Security.Policy {
  34
  35 [Serializable]
  36 [ComVisible (true)]
  37 public sealed class StrongName : IIdentityPermissionFactory, IBuiltInEvidence {
  38
  39         private StrongNamePublicKeyBlob publickey;
  40         private string name;
  41         private Version version;
  42
  43         public StrongName (StrongNamePublicKeyBlob blob, string name, Version version)
  44         {
  45                 if (blob == null)
  46                         throw new ArgumentNullException ("blob");
  47                 if (name == null)
  48                         throw new ArgumentNullException ("name");
  49                 if (version == null)
  50                         throw new ArgumentNullException ("version");
  51                 if (name.Length == 0)
  52                         throw new ArgumentException (Locale.GetText ("Empty"), "name");
  53                 publickey = blob;
  54                 this.name = name;
  55                 this.version = version;
  56         }
  57
  58         public string Name {
  59                 get { return name; }
  60         }
  61
  62         public StrongNamePublicKeyBlob PublicKey {
  63                 get { return publickey; }
  64         }
  65
  66         public Version Version {
  67                 get { return version; }
  68         }
  69
  70         public object Copy ()
  71         {
  72                 return (object) new StrongName (publickey, name, version);
  73         }
  74
  75         public IPermission CreateIdentityPermission (Evidence evidence)
  76         {
  77                 return new StrongNameIdentityPermission (publickey, name, version);
  78         }
  79
  80         public override bool Equals (object o)
  81         {
  82                 StrongName sn = (o as StrongName);
  83                 if (sn == null)
  84                         return false;
  85                 if (name != sn.Name)
  86                         return false;
  87                 if (!Version.Equals (sn.Version))
  88                         return false;
  89                 return PublicKey.Equals (sn.PublicKey);
  90         }
  91
  92         public override int GetHashCode ()
  93         {
  94                 return publickey.GetHashCode ();
  95         }
  96
  97         public override string ToString ()
  98         {
  99                 SecurityElement element = new SecurityElement (typeof (System.Security.Policy.StrongName).Name);
 100                 element.AddAttribute ("version", "1");
 101                 element.AddAttribute ("Key", publickey.ToString ());
 102                 element.AddAttribute ("Name", name);
 103                 element.AddAttribute ("Version", version.ToString ());
 104                 return element.ToString ();
 105         }
 106
 107         // interface IBuiltInEvidence
 108
 109         int IBuiltInEvidence.GetRequiredSize (bool verbose)
 110         {
 111                 return (verbose ? 5 : 1) + name.Length;
 112         }
 113
 114         [MonoTODO ("IBuiltInEvidence")]
 115         int IBuiltInEvidence.InitFromBuffer (char [] buffer, int position)
 116         {
 117                 return 0;
 118         }
 119
 120         [MonoTODO ("IBuiltInEvidence")]
 121         int IBuiltInEvidence.OutputToBuffer (char [] buffer, int position, bool verbose)
 122         {
 123                 return 0;
 124         }
 125 }
 126
 127 }