mcs/class/corlib/System.Security/SecurityException.cs

   1 //
   2 // System.Security.SecurityException.cs
   3 //
   4 // Authors:
   5 //      Nick Drochak(ndrochak@gol.com)
   6 //      Sebastien Pouliot  <sebastien@ximian.com>
   7 //
   8 // (C) Nick Drochak
   9 // (C) 2004 Motus Technologies Inc. (http://www.motus.com)
  10 // Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
  11 //
  12 // Permission is hereby granted, free of charge, to any person obtaining
  13 // a copy of this software and associated documentation files (the
  14 // "Software"), to deal in the Software without restriction, including
  15 // without limitation the rights to use, copy, modify, merge, publish,
  16 // distribute, sublicense, and/or sell copies of the Software, and to
  17 // permit persons to whom the Software is furnished to do so, subject to
  18 // the following conditions:
  19 //
  20 // The above copyright notice and this permission notice shall be
  21 // included in all copies or substantial portions of the Software.
  22 //
  23 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  27 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  28 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  29 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  30 //
  31
  32 using System.Globalization;
  33 using System.Reflection;
  34 using System.Runtime.InteropServices;
  35 using System.Runtime.Serialization;
  36 using System.Security.Permissions;
  37 using System.Security.Policy;
  38 using System.Text;
  39
  40 namespace System.Security {
  41
  42         [Serializable]
  43 #if NET_2_0
  44         [ComVisible (true)]
  45 #endif
  46         public class SecurityException : SystemException {
  47                 // Fields
  48                 string permissionState;
  49                 Type permissionType;
  50                 private string _granted;
  51                 private string _refused;
  52                 private SecurityAction _action;
  53                 private object _demanded;
  54                 private object _denyset;
  55                 private object _permitset;
  56                 private AssemblyName _assembly;
  57                 private IPermission _firstperm;
  58                 private IPermission _permfailed;
  59                 private MethodInfo _method;
  60                 private string _url;
  61                 private SecurityZone _zone;
  62
  63                 // Properties
  64
  65 #if NET_2_0
  66                 [ComVisible (false)]
  67                 public SecurityAction Action {
  68                         get { return _action; }
  69                         set { _action = value; }
  70                 }
  71
  72                 [ComVisible (false)]
  73                 public object DenySetInstance {
  74                         [SecurityPermission (SecurityAction.Demand, ControlEvidence=true, ControlPolicy=true)]
  75                         get { return _denyset; }
  76                         set { _denyset = value; }
  77                 }
  78
  79                 [ComVisible (false)]
  80                 public AssemblyName FailedAssemblyInfo {
  81                         [SecurityPermission (SecurityAction.Demand, ControlEvidence=true, ControlPolicy=true)]
  82                         get { return _assembly; }
  83                         set { _assembly = value; }
  84                 }
  85
  86                 [ComVisible (false)]
  87                 public MethodInfo Method {
  88                         [SecurityPermission (SecurityAction.Demand, ControlEvidence=true, ControlPolicy=true)]
  89                         get { return _method; }
  90                         set { _method = value; }
  91                 }
  92
  93                 [ComVisible (false)]
  94                 public object PermitOnlySetInstance {
  95                         [SecurityPermission (SecurityAction.Demand, ControlEvidence=true, ControlPolicy=true)]
  96                         get { return _permitset; }
  97                         set { _permitset = value; }
  98                 }
  99
 100                 public string Url {
 101                         [SecurityPermission (SecurityAction.Demand, ControlEvidence=true, ControlPolicy=true)]
 102                         get { return _url; }
 103                         set { _url = value; }
 104                 }
 105
 106                 public SecurityZone Zone {
 107                         get { return _zone; }
 108                         set { _zone = value; }
 109                 }
 110 #endif
 111
 112 #if NET_2_0
 113                 [ComVisible (false)]
 114                 public
 115 #else
 116                 internal
 117 #endif
 118                 object Demanded {
 119                         [SecurityPermission (SecurityAction.Demand, ControlEvidence=true, ControlPolicy=true)]
 120                         get { return _demanded; }
 121                         set { _demanded = value; }
 122                 }
 123
 124 #if NET_2_0
 125                 public
 126 #else
 127                 internal
 128 #endif
 129                 IPermission FirstPermissionThatFailed {
 130                         [SecurityPermission (SecurityAction.Demand, ControlEvidence=true, ControlPolicy=true)]
 131                         get { return _firstperm; }
 132                         set { _firstperm = value; }
 133                 }
 134
 135                 public string PermissionState {
 136                         [SecurityPermission (SecurityAction.Demand, ControlEvidence=true, ControlPolicy=true)]
 137                         get { return permissionState; }
 138 #if NET_2_0
 139                         set { permissionState = value; }
 140 #endif
 141                 }
 142
 143                 public Type PermissionType {
 144                         get { return permissionType; }
 145 #if NET_2_0
 146                         set { permissionType = value; }
 147 #endif
 148                 }
 149
 150 #if NET_1_1
 151                 public string GrantedSet {
 152                         [SecurityPermission (SecurityAction.Demand, ControlEvidence=true, ControlPolicy=true)]
 153                         get { return _granted; }
 154 #if NET_2_0
 155                         set { _granted = value; }
 156 #endif
 157                 }
 158
 159                 public string RefusedSet {
 160                         [SecurityPermission (SecurityAction.Demand, ControlEvidence=true, ControlPolicy=true)]
 161                         get { return _refused; }
 162 #if NET_2_0
 163                         set { _refused = value; }
 164 #endif
 165                 }
 166 #endif
 167                 // Constructors
 168
 169                 public SecurityException ()
 170                         : base (Locale.GetText ("A security error has been detected."))
 171                 {
 172                         base.HResult = unchecked ((int)0x8013150A);
 173                 }
 174
 175                 public SecurityException (string message)
 176                         : base (message)
 177                 {
 178                         base.HResult = unchecked ((int)0x8013150A);
 179                 }
 180
 181                 protected SecurityException (SerializationInfo info, StreamingContext context)
 182                         : base (info, context)
 183                 {
 184                         base.HResult = unchecked ((int)0x8013150A);
 185                         // depending on the security policy the info about PermissionState may
 186                         // not be available (but the serializable must work)
 187                         SerializationInfoEnumerator e = info.GetEnumerator ();
 188                         while (e.MoveNext ()) {
 189                                 if (e.Name == "PermissionState") {
 190                                         permissionState = (string) e.Value;
 191                                         break;
 192                                 }
 193                         }
 194                 }
 195
 196                 public SecurityException (string message, Exception inner)
 197                         : base (message, inner)
 198                 {
 199                         base.HResult = unchecked ((int)0x8013150A);
 200                 }
 201
 202                 public SecurityException (string message, Type type)
 203                         :  base (message)
 204                 {
 205                         base.HResult = unchecked ((int)0x8013150A);
 206                         permissionType = type;
 207                 }
 208
 209                 public SecurityException (string message, Type type, string state)
 210                         : base (message)
 211                 {
 212                         base.HResult = unchecked ((int)0x8013150A);
 213                         permissionType = type;
 214                         permissionState = state;
 215                 }
 216
 217                 internal SecurityException (string message, PermissionSet granted, PermissionSet refused)
 218                         : base (message)
 219                 {
 220                         base.HResult = unchecked ((int)0x8013150A);
 221                         _granted = granted.ToString ();
 222                         _refused = refused.ToString ();
 223                 }
 224
 225 #if NET_2_0
 226                 public
 227 #else
 228                 internal
 229 #endif
 230                 SecurityException (string message, object deny, object permitOnly, MethodInfo method,
 231                         object demanded, IPermission permThatFailed)
 232                         : base (message)
 233                 {
 234                         base.HResult = unchecked ((int)0x8013150A);
 235                         _denyset = deny;
 236                         _permitset = permitOnly;
 237                         _method = method;
 238                         _demanded = demanded;
 239                         _firstperm = permThatFailed;
 240                 }
 241
 242 #if NET_2_0
 243                 public
 244 #else
 245                 internal
 246 #endif
 247                 SecurityException (string message, AssemblyName assemblyName, PermissionSet grant,
 248                         PermissionSet refused, MethodInfo method, SecurityAction action, object demanded,
 249                         IPermission permThatFailed, Evidence evidence)
 250                         : base (message)
 251                 {
 252                         base.HResult = unchecked ((int)0x8013150A);
 253                         _assembly = assemblyName;
 254                         _granted = (grant == null) ? String.Empty : grant.ToString ();
 255                         _refused = (refused == null) ? String.Empty : refused.ToString ();
 256                         _method = method;
 257                         _action = action;
 258                         _demanded = demanded;
 259                         _firstperm = permThatFailed;
 260                         if (_firstperm != null)
 261                                 permissionType = _firstperm.GetType ();
 262                         // FIXME ? evidence ?
 263                 }
 264
 265                 // Methods
 266                 public override void GetObjectData (SerializationInfo info, StreamingContext context)
 267                 {
 268                         base.GetObjectData (info, context);
 269                         try {
 270                                 info.AddValue ("PermissionState", PermissionState);
 271                         }
 272                         catch (SecurityException) {
 273                                 // serialize only if permitted to do so
 274                         }
 275                 }
 276
 277                 public override string ToString ()
 278                 {
 279                         StringBuilder sb = new StringBuilder (base.ToString ());
 280                         try {
 281                                 if (permissionType != null) {
 282                                         sb.AppendFormat ("{0}Type: {1}", Environment.NewLine, PermissionType);
 283                                 }
 284                                 if (_method != null) {
 285                                         // method string representation doesn't include the type
 286                                         string m = _method.ToString ();
 287                                         int ret = m.IndexOf (" ") + 1;
 288                                         sb.AppendFormat ("{0}Method: {1} {2}.{3}", Environment.NewLine,
 289                                                 _method.ReturnType.Name, _method.ReflectedType, m.Substring (ret));
 290                                 }
 291                                 if (permissionState != null) {
 292                                         sb.AppendFormat ("{0}State: {1}", Environment.NewLine, PermissionState);
 293                                 }
 294                                 if ((_granted != null) && (_granted.Length > 0)) {
 295                                         sb.AppendFormat ("{0}Granted: {1}", Environment.NewLine, GrantedSet);
 296                                 }
 297                                 if ((_refused != null) && (_refused.Length > 0)) {
 298                                         sb.AppendFormat ("{0}Refused: {1}", Environment.NewLine, RefusedSet);
 299                                 }
 300                                 if (_demanded != null) {
 301                                         sb.AppendFormat ("{0}Demanded: {1}", Environment.NewLine, Demanded);
 302                                 }
 303                                 if (_firstperm != null) {
 304                                         sb.AppendFormat ("{0}Failed Permission: {1}", Environment.NewLine, FirstPermissionThatFailed);
 305                                 }
 306                         }
 307                         catch (SecurityException) {
 308                                 // some informations can't be displayed
 309                         }
 310                         return sb.ToString ();
 311                 }
 312         }
 313 }