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 object _demanded;
  53                 private IPermission _firstperm;
  54 //              private IPermission _permfailed;
  55                 private MethodInfo _method;
  56                 private Evidence _evidence;
  57
  58 #if !NET_2_0
  59         #pragma warning disable 169
  60 #endif
  61                 private SecurityAction _action;
  62                 private object _denyset;
  63                 private object _permitset;
  64                 private AssemblyName _assembly;
  65                 private string _url;
  66                 private SecurityZone _zone;
  67
  68 #if !NET_2_0
  69         #pragma warning restore 169
  70 #endif
  71
  72                 // Properties
  73
  74 #if NET_2_0
  75                 [ComVisible (false)]
  76                 public SecurityAction Action {
  77                         get { return _action; }
  78                         set { _action = value; }
  79                 }
  80
  81                 [ComVisible (false)]
  82                 public object DenySetInstance {
  83                         [SecurityPermission (SecurityAction.Demand, ControlEvidence=true, ControlPolicy=true)]
  84                         get { return _denyset; }
  85                         set { _denyset = value; }
  86                 }
  87
  88                 [ComVisible (false)]
  89                 public AssemblyName FailedAssemblyInfo {
  90                         [SecurityPermission (SecurityAction.Demand, ControlEvidence=true, ControlPolicy=true)]
  91                         get { return _assembly; }
  92                         set { _assembly = value; }
  93                 }
  94
  95                 [ComVisible (false)]
  96                 public MethodInfo Method {
  97                         [SecurityPermission (SecurityAction.Demand, ControlEvidence=true, ControlPolicy=true)]
  98                         get { return _method; }
  99                         set { _method = value; }
 100                 }
 101
 102                 [ComVisible (false)]
 103                 public object PermitOnlySetInstance {
 104                         [SecurityPermission (SecurityAction.Demand, ControlEvidence=true, ControlPolicy=true)]
 105                         get { return _permitset; }
 106                         set { _permitset = value; }
 107                 }
 108
 109                 public string Url {
 110                         [SecurityPermission (SecurityAction.Demand, ControlEvidence=true, ControlPolicy=true)]
 111                         get { return _url; }
 112                         set { _url = value; }
 113                 }
 114
 115                 public SecurityZone Zone {
 116                         get { return _zone; }
 117                         set { _zone = value; }
 118                 }
 119 #endif
 120
 121 #if NET_2_0
 122                 [ComVisible (false)]
 123                 public
 124 #else
 125                 internal
 126 #endif
 127                 object Demanded {
 128                         [SecurityPermission (SecurityAction.Demand, ControlEvidence=true, ControlPolicy=true)]
 129                         get { return _demanded; }
 130                         set { _demanded = value; }
 131                 }
 132
 133 #if NET_2_0
 134                 public
 135 #else
 136                 internal
 137 #endif
 138                 IPermission FirstPermissionThatFailed {
 139                         [SecurityPermission (SecurityAction.Demand, ControlEvidence=true, ControlPolicy=true)]
 140                         get { return _firstperm; }
 141                         set { _firstperm = value; }
 142                 }
 143
 144                 public string PermissionState {
 145                         [SecurityPermission (SecurityAction.Demand, ControlEvidence=true, ControlPolicy=true)]
 146                         get { return permissionState; }
 147 #if NET_2_0
 148                         set { permissionState = value; }
 149 #endif
 150                 }
 151
 152                 public Type PermissionType {
 153                         get { return permissionType; }
 154 #if NET_2_0
 155                         set { permissionType = value; }
 156 #endif
 157                 }
 158
 159 #if NET_1_1
 160                 public string GrantedSet {
 161                         [SecurityPermission (SecurityAction.Demand, ControlEvidence=true, ControlPolicy=true)]
 162                         get { return _granted; }
 163 #if NET_2_0
 164                         set { _granted = value; }
 165 #endif
 166                 }
 167
 168                 public string RefusedSet {
 169                         [SecurityPermission (SecurityAction.Demand, ControlEvidence=true, ControlPolicy=true)]
 170                         get { return _refused; }
 171 #if NET_2_0
 172                         set { _refused = value; }
 173 #endif
 174                 }
 175 #endif
 176                 // Constructors
 177
 178                 public SecurityException ()
 179                         : base (Locale.GetText ("A security error has been detected."))
 180                 {
 181                         base.HResult = unchecked ((int)0x8013150A);
 182                 }
 183
 184                 public SecurityException (string message)
 185                         : base (message)
 186                 {
 187                         base.HResult = unchecked ((int)0x8013150A);
 188                 }
 189
 190                 protected SecurityException (SerializationInfo info, StreamingContext context)
 191                         : base (info, context)
 192                 {
 193                         base.HResult = unchecked ((int)0x8013150A);
 194                         // depending on the security policy the info about PermissionState may
 195                         // not be available (but the serializable must work)
 196                         SerializationInfoEnumerator e = info.GetEnumerator ();
 197                         while (e.MoveNext ()) {
 198                                 if (e.Name == "PermissionState") {
 199                                         permissionState = (string) e.Value;
 200                                         break;
 201                                 }
 202                         }
 203                 }
 204
 205                 public SecurityException (string message, Exception inner)
 206                         : base (message, inner)
 207                 {
 208                         base.HResult = unchecked ((int)0x8013150A);
 209                 }
 210
 211                 public SecurityException (string message, Type type)
 212                         :  base (message)
 213                 {
 214                         base.HResult = unchecked ((int)0x8013150A);
 215                         permissionType = type;
 216                 }
 217
 218                 public SecurityException (string message, Type type, string state)
 219                         : base (message)
 220                 {
 221                         base.HResult = unchecked ((int)0x8013150A);
 222                         permissionType = type;
 223                         permissionState = state;
 224                 }
 225
 226                 internal SecurityException (string message, PermissionSet granted, PermissionSet refused)
 227                         : base (message)
 228                 {
 229                         base.HResult = unchecked ((int)0x8013150A);
 230                         _granted = granted.ToString ();
 231                         _refused = refused.ToString ();
 232                 }
 233
 234 #if NET_2_0
 235                 public
 236 #else
 237                 internal
 238 #endif
 239                 SecurityException (string message, object deny, object permitOnly, MethodInfo method,
 240                         object demanded, IPermission permThatFailed)
 241                         : base (message)
 242                 {
 243                         base.HResult = unchecked ((int)0x8013150A);
 244                         _denyset = deny;
 245                         _permitset = permitOnly;
 246                         _method = method;
 247                         _demanded = demanded;
 248                         _firstperm = permThatFailed;
 249                 }
 250
 251 #if NET_2_0
 252                 public
 253 #else
 254                 internal
 255 #endif
 256                 SecurityException (string message, AssemblyName assemblyName, PermissionSet grant,
 257                         PermissionSet refused, MethodInfo method, SecurityAction action, object demanded,
 258                         IPermission permThatFailed, Evidence evidence)
 259                         : base (message)
 260                 {
 261                         base.HResult = unchecked ((int)0x8013150A);
 262                         _assembly = assemblyName;
 263                         _granted = (grant == null) ? String.Empty : grant.ToString ();
 264                         _refused = (refused == null) ? String.Empty : refused.ToString ();
 265                         _method = method;
 266                         _action = action;
 267                         _demanded = demanded;
 268                         _firstperm = permThatFailed;
 269                         if (_firstperm != null)
 270                                 permissionType = _firstperm.GetType ();
 271                         _evidence = evidence;
 272                 }
 273
 274                 // Methods
 275                 public override void GetObjectData (SerializationInfo info, StreamingContext context)
 276                 {
 277                         base.GetObjectData (info, context);
 278                         try {
 279                                 info.AddValue ("PermissionState", PermissionState);
 280                         }
 281                         catch (SecurityException) {
 282                                 // serialize only if permitted to do so
 283                         }
 284                 }
 285
 286                 public override string ToString ()
 287                 {
 288                         StringBuilder sb = new StringBuilder (base.ToString ());
 289                         try {
 290                                 if (permissionType != null) {
 291                                         sb.AppendFormat ("{0}Type: {1}", Environment.NewLine, PermissionType);
 292                                 }
 293                                 if (_method != null) {
 294                                         // method string representation doesn't include the type
 295                                         string m = _method.ToString ();
 296                                         int ret = m.IndexOf (" ") + 1;
 297                                         sb.AppendFormat ("{0}Method: {1} {2}.{3}", Environment.NewLine,
 298                                                 _method.ReturnType.Name, _method.ReflectedType, m.Substring (ret));
 299                                 }
 300                                 if (permissionState != null) {
 301                                         sb.AppendFormat ("{0}State: {1}", Environment.NewLine, PermissionState);
 302                                 }
 303                                 if ((_granted != null) && (_granted.Length > 0)) {
 304                                         sb.AppendFormat ("{0}Granted: {1}", Environment.NewLine, GrantedSet);
 305                                 }
 306                                 if ((_refused != null) && (_refused.Length > 0)) {
 307                                         sb.AppendFormat ("{0}Refused: {1}", Environment.NewLine, RefusedSet);
 308                                 }
 309                                 if (_demanded != null) {
 310                                         sb.AppendFormat ("{0}Demanded: {1}", Environment.NewLine, Demanded);
 311                                 }
 312                                 if (_firstperm != null) {
 313                                         sb.AppendFormat ("{0}Failed Permission: {1}", Environment.NewLine, FirstPermissionThatFailed);
 314                                 }
 315                                 if (_evidence != null) {
 316                                         sb.AppendFormat ("{0}Evidences:", Environment.NewLine);
 317                                         foreach (object o in _evidence) {
 318                                                 // Hash evidence is way much too verbose to be useful to anyone
 319                                                 if (!(o is Hash))
 320                                                         sb.AppendFormat ("{0}\t{1}", Environment.NewLine, o);
 321                                         }
 322                                 }
 323                         }
 324                         catch (SecurityException) {
 325                                 // some informations can't be displayed
 326                         }
 327                         return sb.ToString ();
 328                 }
 329         }
 330 }