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