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