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         [ComVisible (true)]
  44         public class SecurityException : SystemException {
  45                 // Fields
  46                 string permissionState;
  47                 Type permissionType;
  48                 private string _granted;
  49                 private string _refused;
  50                 private object _demanded;
  51                 private IPermission _firstperm;
  52 //              private IPermission _permfailed;
  53                 private MethodInfo _method;
  54 #if !MOBILE
  55                 private Evidence _evidence;
  56 #endif
  57                 private SecurityAction _action;
  58                 private object _denyset;
  59                 private object _permitset;
  60                 private AssemblyName _assembly;
  61                 private string _url;
  62                 private SecurityZone _zone;
  63
  64                 // Properties
  65
  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
 111                 [ComVisible (false)]
 112                 public object Demanded {
 113                         [SecurityPermission (SecurityAction.Demand, ControlEvidence=true, ControlPolicy=true)]
 114                         get { return _demanded; }
 115                         set { _demanded = value; }
 116                 }
 117
 118                 public IPermission FirstPermissionThatFailed {
 119                         [SecurityPermission (SecurityAction.Demand, ControlEvidence=true, ControlPolicy=true)]
 120                         get { return _firstperm; }
 121                         set { _firstperm = value; }
 122                 }
 123
 124                 public string PermissionState {
 125                         [SecurityPermission (SecurityAction.Demand, ControlEvidence=true, ControlPolicy=true)]
 126                         get { return permissionState; }
 127                         set { permissionState = value; }
 128                 }
 129
 130                 public Type PermissionType {
 131                         get { return permissionType; }
 132                         set { permissionType = value; }
 133                 }
 134
 135                 public string GrantedSet {
 136                         [SecurityPermission (SecurityAction.Demand, ControlEvidence=true, ControlPolicy=true)]
 137                         get { return _granted; }
 138                         set { _granted = value; }
 139                 }
 140
 141                 public string RefusedSet {
 142                         [SecurityPermission (SecurityAction.Demand, ControlEvidence=true, ControlPolicy=true)]
 143                         get { return _refused; }
 144                         set { _refused = value; }
 145                 }
 146
 147                 // Constructors
 148
 149                 public SecurityException ()
 150                         : base (Locale.GetText ("A security error has been detected."))
 151                 {
 152                         base.HResult = unchecked ((int)0x8013150A);
 153                 }
 154
 155                 public SecurityException (string message)
 156                         : base (message)
 157                 {
 158                         base.HResult = unchecked ((int)0x8013150A);
 159                 }
 160
 161                 protected SecurityException (SerializationInfo info, StreamingContext context)
 162                         : base (info, context)
 163                 {
 164                         base.HResult = unchecked ((int)0x8013150A);
 165                         // depending on the security policy the info about PermissionState may
 166                         // not be available (but the serializable must work)
 167                         SerializationInfoEnumerator e = info.GetEnumerator ();
 168                         while (e.MoveNext ()) {
 169                                 if (e.Name == "PermissionState") {
 170                                         permissionState = (string) e.Value;
 171                                         break;
 172                                 }
 173                         }
 174                 }
 175
 176                 public SecurityException (string message, Exception inner)
 177                         : base (message, inner)
 178                 {
 179                         base.HResult = unchecked ((int)0x8013150A);
 180                 }
 181
 182                 public SecurityException (string message, Type type)
 183                         :  base (message)
 184                 {
 185                         base.HResult = unchecked ((int)0x8013150A);
 186                         permissionType = type;
 187                 }
 188
 189                 public SecurityException (string message, Type type, string state)
 190                         : base (message)
 191                 {
 192                         base.HResult = unchecked ((int)0x8013150A);
 193                         permissionType = type;
 194                         permissionState = state;
 195                 }
 196
 197                 internal SecurityException (string message, PermissionSet granted, PermissionSet refused)
 198                         : base (message)
 199                 {
 200                         base.HResult = unchecked ((int)0x8013150A);
 201                         _granted = granted.ToString ();
 202                         _refused = refused.ToString ();
 203                 }
 204
 205                 public SecurityException (string message, object deny, object permitOnly, MethodInfo method,
 206                         object demanded, IPermission permThatFailed)
 207                         : base (message)
 208                 {
 209                         base.HResult = unchecked ((int)0x8013150A);
 210                         _denyset = deny;
 211                         _permitset = permitOnly;
 212                         _method = method;
 213                         _demanded = demanded;
 214                         _firstperm = permThatFailed;
 215                 }
 216 #if !MOBILE
 217                 public SecurityException (string message, AssemblyName assemblyName, PermissionSet grant,
 218                         PermissionSet refused, MethodInfo method, SecurityAction action, object demanded,
 219                         IPermission permThatFailed, Evidence evidence)
 220                         : base (message)
 221                 {
 222                         base.HResult = unchecked ((int)0x8013150A);
 223                         _assembly = assemblyName;
 224                         _granted = (grant == null) ? String.Empty : grant.ToString ();
 225                         _refused = (refused == null) ? String.Empty : refused.ToString ();
 226                         _method = method;
 227                         _action = action;
 228                         _demanded = demanded;
 229                         _firstperm = permThatFailed;
 230                         if (_firstperm != null)
 231                                 permissionType = _firstperm.GetType ();
 232                         _evidence = evidence;
 233                 }
 234 #endif
 235                 // Methods
 236                 public override void GetObjectData (SerializationInfo info, StreamingContext context)
 237                 {
 238                         base.GetObjectData (info, context);
 239                         try {
 240                                 info.AddValue ("PermissionState", PermissionState);
 241                         }
 242                         catch (SecurityException) {
 243                                 // serialize only if permitted to do so
 244                         }
 245                 }
 246
 247                 public override string ToString ()
 248                 {
 249 #if MOBILE
 250                         return base.ToString ();
 251 #else
 252                         StringBuilder sb = new StringBuilder (base.ToString ());
 253                         try {
 254                                 if (permissionType != null) {
 255                                         sb.AppendFormat ("{0}Type: {1}", Environment.NewLine, PermissionType);
 256                                 }
 257                                 if (_method != null) {
 258                                         // method string representation doesn't include the type
 259                                         string m = _method.ToString ();
 260                                         int ret = m.IndexOf (" ") + 1;
 261                                         sb.AppendFormat ("{0}Method: {1} {2}.{3}", Environment.NewLine,
 262                                                 _method.ReturnType.Name, _method.ReflectedType, m.Substring (ret));
 263                                 }
 264                                 if (permissionState != null) {
 265                                         sb.AppendFormat ("{0}State: {1}", Environment.NewLine, PermissionState);
 266                                 }
 267                                 if ((_granted != null) && (_granted.Length > 0)) {
 268                                         sb.AppendFormat ("{0}Granted: {1}", Environment.NewLine, GrantedSet);
 269                                 }
 270                                 if ((_refused != null) && (_refused.Length > 0)) {
 271                                         sb.AppendFormat ("{0}Refused: {1}", Environment.NewLine, RefusedSet);
 272                                 }
 273                                 if (_demanded != null) {
 274                                         sb.AppendFormat ("{0}Demanded: {1}", Environment.NewLine, Demanded);
 275                                 }
 276                                 if (_firstperm != null) {
 277                                         sb.AppendFormat ("{0}Failed Permission: {1}", Environment.NewLine, FirstPermissionThatFailed);
 278                                 }
 279                                 if (_evidence != null) {
 280                                         sb.AppendFormat ("{0}Evidences:", Environment.NewLine);
 281                                         foreach (object o in _evidence) {
 282                                                 // Hash evidence is way much too verbose to be useful to anyone
 283                                                 if (!(o is Hash))
 284                                                         sb.AppendFormat ("{0}\t{1}", Environment.NewLine, o);
 285                                         }
 286                                 }
 287                         }
 288                         catch (SecurityException) {
 289                                 // some informations can't be displayed
 290                         }
 291                         return sb.ToString ();
 292 #endif
 293                 }
 294         }
 295 }