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

   1 //
   2 // System.Security.Policy.Zone
   3 //
   4 // Authors:
   5 //      Gonzalo Paniagua Javier (gonzalo@ximian.com)
   6 //
   7 // (C) 2002 Ximian, Inc (http://www.ximian.com)
   8 //
   9 using System;
  10 using System.Security;
  11 using System.Security.Permissions;
  12
  13 namespace System.Security.Policy
  14 {
  15         public sealed class Zone : IIdentityPermissionFactory, IBuiltInEvidence
  16         {
  17                 SecurityZone zone;
  18
  19                 public Zone (SecurityZone zone)
  20                 {
  21                         if (!Enum.IsDefined (typeof (SecurityZone), zone))
  22                                 throw new ArgumentException ("invalid zone");
  23
  24                         this.zone = zone;
  25                 }
  26
  27                 public object Copy ()
  28                 {
  29                         return new Zone (zone);
  30                 }
  31
  32                 public IPermission CreateIdentityPermission (Evidence evidence)
  33                 {
  34                         return new ZoneIdentityPermission (zone);
  35                 }
  36
  37                 [MonoTODO("This depends on zone configuration in IE")]
  38                 public static Zone CreateFromUrl (string url)
  39                 {
  40                         throw new NotImplementedException ();
  41                 }
  42
  43                 public override bool Equals (object o)
  44                 {
  45                         if (!(o is Zone))
  46                                 return false;
  47
  48                         return (((Zone) o).zone == zone);
  49                 }
  50
  51                 public override int GetHashCode ()
  52                 {
  53                         return (int) zone;
  54                 }
  55
  56                 public override string ToString ()
  57                 {
  58                         SecurityElement se = new SecurityElement (GetType ().FullName);
  59                         se.AddAttribute ("version", "1");
  60                         se.AddChild (new SecurityElement ("Zone", zone.ToString ()));
  61
  62                         return se.ToString ();
  63                 }
  64
  65                 int IBuiltInEvidence.GetRequiredSize (bool verbose)
  66                 {
  67                         return 3;
  68                 }
  69
  70                 int IBuiltInEvidence.InitFromBuffer (char [] buffer, int position) {
  71                         int new_zone = (int) buffer [position++];
  72                         new_zone += buffer [position++];
  73                         return position;
  74                 }
  75
  76                 int IBuiltInEvidence.OutputToBuffer (char [] buffer, int position, bool verbose)
  77                 {
  78                         buffer [position++] = '\x0003';
  79                         buffer [position++] = (char) (((int) zone) >> 16);
  80                         buffer [position++] = (char) (((int) zone) & 0x0FFFF);
  81                         return position;
  82                 }
  83
  84                 public SecurityZone SecurityZone
  85                 {
  86                         get { return zone; }
  87                 }
  88         }
  89 }
  90