mcs/ilasm/codegen/DeclSecurity.cs

   1 //
   2 // Mono.ILASM.DeclSecurity
   3 //
   4 // Author(s):
   5 //  Ankit Jain  <JAnkit@novell.com>
   6 //
   7 // (C) 2005 Ankit Jain, All rights reserved
   8 //
   9
  10
  11 using System;
  12 using System.Collections;
  13 using System.Security;
  14 using System.Security.Permissions;
  15
  16 namespace Mono.ILASM {
  17
  18         public interface IDeclSecurityTarget {
  19                 void AddPermission (PEAPI.SecurityAction sec_action, IPermission iper);
  20                 void AddPermissionSet (PEAPI.SecurityAction sec_action, PermissionSet perm_set);
  21         }
  22
  23         public class DeclSecurity {
  24
  25                 private Hashtable permissionset_table;
  26
  27                 public DeclSecurity ()
  28                 {
  29                         permissionset_table = new Hashtable ();
  30                 }
  31
  32                 public void AddPermission (PEAPI.SecurityAction sec_action, IPermission perm)
  33                 {
  34                         PermissionSet ps = (PermissionSet) permissionset_table [sec_action];
  35                         if (ps == null) {
  36                                 ps = new PermissionSet (PermissionState.None);
  37                                 permissionset_table [sec_action] = ps;
  38                         }
  39
  40                         ps.AddPermission (perm);
  41                 }
  42
  43                 public void AddPermissionSet (PEAPI.SecurityAction sec_action, PermissionSet perm_set)
  44                 {
  45                         PermissionSet ps = (PermissionSet) permissionset_table [sec_action];
  46                         if (ps == null) {
  47                                 permissionset_table [sec_action] = perm_set;
  48                                 return;
  49                         }
  50
  51                         foreach (IPermission iper in perm_set)
  52                                 ps.AddPermission (iper);
  53                 }
  54
  55                 public void AddTo (CodeGen code_gen, PEAPI.MetaDataElement elem)
  56                 {
  57                         System.Text.UnicodeEncoding ue = new System.Text.UnicodeEncoding ();
  58                         foreach (PEAPI.SecurityAction sec_action in permissionset_table.Keys)
  59                                 code_gen.PEFile.AddDeclSecurity (sec_action,
  60                                         ue.GetBytes (((PermissionSet) permissionset_table [sec_action]).ToXml ().ToString ()),
  61                                         elem);
  62                 }
  63
  64         }
  65
  66 }