mcs/class/System.IdentityModel/System.IdentityModel.Selectors/SecurityTokenRequirement.cs

   1 //
   2 // SecurityTokenRequirement.cs
   3 //
   4 // Author:
   5 //      Atsushi Enomoto <atsushi@ximian.com>
   6 //
   7 // Copyright (C) 2006 Novell, Inc.  http://www.novell.com
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28 using System;
  29 using System.Collections.Generic;
  30 using System.IdentityModel.Tokens;
  31
  32 namespace System.IdentityModel.Selectors
  33 {
  34         public class SecurityTokenRequirement
  35         {
  36                 // huh, why not const?
  37
  38                 public static string KeySizeProperty {
  39                         get { return "http://schemas.microsoft.com/ws/2006/05/identitymodel/securitytokenrequirement/KeySize"; }
  40                 }
  41
  42                 public static string KeyTypeProperty {
  43                         get { return "http://schemas.microsoft.com/ws/2006/05/identitymodel/securitytokenrequirement/KeyType"; }
  44                 }
  45
  46                 public static string KeyUsageProperty {
  47                         get { return "http://schemas.microsoft.com/ws/2006/05/identitymodel/securitytokenrequirement/KeyUsage"; }
  48                 }
  49
  50                 public static string RequireCryptographicTokenProperty {
  51                         get { return "http://schemas.microsoft.com/ws/2006/05/identitymodel/securitytokenrequirement/RequireCryptographicToken"; }
  52                 }
  53
  54                 public static string TokenTypeProperty {
  55                         get { return "http://schemas.microsoft.com/ws/2006/05/identitymodel/securitytokenrequirement/TokenType"; }
  56                 }
  57
  58                 // Instance members
  59
  60                 public SecurityTokenRequirement ()
  61                 {
  62                 }
  63
  64                 Dictionary<string,object> properties;
  65
  66                 public int KeySize {
  67                         get {
  68                                 int ret;
  69                                 if (TryGetProperty<int> (KeySizeProperty, out ret))
  70                                         return ret;
  71                                 return default (int);
  72                         }
  73                         set { Properties [KeySizeProperty] = value; }
  74                 }
  75
  76                 public SecurityKeyType KeyType {
  77                         get {
  78                                 SecurityKeyType ret;
  79                                 if (TryGetProperty<SecurityKeyType> (KeyTypeProperty, out ret))
  80                                         return ret;
  81                                 return default (SecurityKeyType);
  82                         }
  83                         set { Properties [KeyTypeProperty] = value; }
  84                 }
  85
  86                 public string TokenType {
  87                         get {
  88                                 string ret;
  89                                 if (TryGetProperty<string> (TokenTypeProperty, out ret))
  90                                         return ret;
  91                                 return default (string);
  92                         }
  93                         set { Properties [TokenTypeProperty] = value; }
  94                 }
  95
  96                 public SecurityKeyUsage KeyUsage {
  97                         get {
  98                                 SecurityKeyUsage ret;
  99                                 if (TryGetProperty<SecurityKeyUsage> (KeyUsageProperty, out ret))
 100                                         return ret;
 101                                 return SecurityKeyUsage.Signature;// not default!!
 102                         }
 103                         set { Properties [KeyUsageProperty] = value; }
 104                 }
 105
 106                 public bool RequireCryptographicToken {
 107                         get {
 108                                 bool ret;
 109                                 if (TryGetProperty<bool> (RequireCryptographicTokenProperty, out ret))
 110                                         return ret;
 111                                 return default (bool);
 112                         }
 113                         set { Properties [RequireCryptographicTokenProperty] = value; }
 114                 }
 115
 116                 public IDictionary<string,object> Properties {
 117                         get {
 118                                 if (properties == null) {
 119                                         properties = new Dictionary<string,object> ();
 120                                         properties [KeyTypeProperty] = SecurityKeyType.SymmetricKey;
 121                                         properties [KeySizeProperty] = 0;
 122                                         properties [RequireCryptographicTokenProperty] = false;
 123                                 }
 124                                 return properties;
 125                         }
 126                 }
 127
 128                 public TValue GetProperty<TValue> (string property)
 129                 {
 130                         TValue ret;
 131                         if (TryGetProperty<TValue> (property, out ret))
 132                                 return ret;
 133                         throw new ArgumentException (String.Format ("Property '{0}' was not found.", property));
 134                 }
 135
 136                 public bool TryGetProperty<TValue> (string property, out TValue value)
 137                 {
 138                         object tmp;
 139                         value = default (TValue);
 140
 141                         if (!Properties.TryGetValue (property, out tmp))
 142                                 return false;
 143                         if (tmp == null && !typeof (TValue).IsValueType)
 144                                 value = default (TValue);
 145                         else if (tmp is TValue)
 146                                 value = (TValue) tmp;
 147                         else
 148                                 throw new ArgumentException (String.Format ("The value of property '{0}' is of type '{1}', while '{2}' is expected.", property, tmp.GetType (), typeof (TValue)));
 149                         return true;
 150                 }
 151         }
 152 }