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 using SSPermissionSet = System.Security.PermissionSet;
  17 using MIPermissionSet = Mono.ILASM.PermissionSet;
  18
  19 namespace Mono.ILASM {
  20
  21         public interface IDeclSecurityTarget {
  22                 DeclSecurity DeclSecurity { get; }
  23         }
  24
  25         public class DeclSecurity {
  26
  27                 private Hashtable permissionset_table;
  28                 private Hashtable permissionset20_table;
  29
  30                 public DeclSecurity ()
  31                 {
  32                         permissionset_table = new Hashtable ();
  33                 }
  34
  35                 public void AddPermission (PEAPI.SecurityAction sec_action, IPermission perm)
  36                 {
  37                         SSPermissionSet ps = (SSPermissionSet) permissionset_table [sec_action];
  38                         if (ps == null) {
  39                                 ps = new SSPermissionSet (PermissionState.None);
  40                                 permissionset_table [sec_action] = ps;
  41                         }
  42
  43                         ps.AddPermission (perm);
  44                 }
  45
  46                 public void AddPermissionSet (PEAPI.SecurityAction sec_action, SSPermissionSet perm_set)
  47                 {
  48                         SSPermissionSet ps = (SSPermissionSet) permissionset_table [sec_action];
  49                         if (ps == null) {
  50                                 permissionset_table [sec_action] = perm_set;
  51                                 return;
  52                         }
  53
  54                         foreach (IPermission iper in perm_set)
  55                                 ps.AddPermission (iper);
  56                 }
  57
  58                 //Not called by parser for profile != NET_2_0
  59                 public void AddPermissionSet (PEAPI.SecurityAction sec_action, MIPermissionSet perm_set)
  60                 {
  61                         PermissionSet ps = null;
  62
  63                         if (permissionset20_table == null)
  64                                 permissionset20_table = new Hashtable ();
  65                         else
  66                                 ps = (MIPermissionSet) permissionset20_table [sec_action];
  67
  68                         if (ps == null) {
  69                                 permissionset20_table [sec_action] = perm_set;
  70                                 return;
  71                         }
  72
  73                         foreach (Permission perm in perm_set.Permissions)
  74                                 ps.AddPermission (perm);
  75                 }
  76
  77                 public void AddTo (CodeGen code_gen, PEAPI.MetaDataElement elem)
  78                 {
  79                         System.Text.UnicodeEncoding ue = new System.Text.UnicodeEncoding ();
  80                         foreach (DictionaryEntry entry in permissionset_table) {
  81                                 PEAPI.SecurityAction sec_action = (PEAPI.SecurityAction) entry.Key;
  82                                 SSPermissionSet ps = (SSPermissionSet) entry.Value;
  83
  84                                 code_gen.PEFile.AddDeclSecurity (sec_action,
  85                                         ue.GetBytes (ps.ToXml ().ToString ()),
  86                                          elem);
  87                         }
  88
  89                         if (permissionset20_table == null)
  90                                 return;
  91
  92                         foreach (DictionaryEntry entry in permissionset20_table) {
  93                                 PEAPI.SecurityAction sec_action = (PEAPI.SecurityAction) entry.Key;
  94                                 MIPermissionSet ps = (MIPermissionSet) entry.Value;
  95
  96                                 code_gen.PEFile.AddDeclSecurity (sec_action,
  97                                         ps.Resolve (code_gen),
  98                                         elem);
  99                         }
 100
 101                 }
 102
 103         }
 104
 105 }