mcs/class/System.Security/System.Security.Cryptography.Xml/EncryptionProperty.cs

   1 //
   2 // EncryptionProperty.cs - EncryptionProperty implementation for XML Encryption
   3 // http://www.w3.org/2001/04/xmlenc#sec-EncryptionProperty
   4 //
   5 // Author:
   6 //      Tim Coleman (tim@timcoleman.com)
   7 //
   8 // Copyright (C) Tim Coleman, 2004
   9
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29 //
  30
  31
  32 using System.Xml;
  33
  34 namespace System.Security.Cryptography.Xml {
  35         public sealed class EncryptionProperty {
  36
  37                 #region Fields
  38
  39                 string id;
  40                 string target;
  41
  42                 #endregion // Fields
  43
  44                 #region Constructors
  45
  46                 public EncryptionProperty ()
  47                 {
  48                 }
  49
  50                 public EncryptionProperty (XmlElement elemProp)
  51                 {
  52                         LoadXml (elemProp);
  53                 }
  54
  55                 #endregion // Constructors
  56
  57                 #region Properties
  58
  59                 public string Id {
  60                         get { return id; }
  61                 }
  62
  63                 [MonoTODO ("Always returns null")]
  64                 public XmlElement PropertyElement {
  65                         get { return null; }
  66                         set { LoadXml (value); }
  67                 }
  68
  69                 public string Target {
  70                         get { return target; }
  71                 }
  72
  73                 #endregion // Properties
  74
  75                 #region Methods
  76
  77                 public XmlElement GetXml ()
  78                 {
  79                         return GetXml (new XmlDocument ());
  80                 }
  81
  82                 internal XmlElement GetXml (XmlDocument document)
  83                 {
  84                         XmlElement xel = document.CreateElement (XmlEncryption.ElementNames.EncryptionProperty, EncryptedXml.XmlEncNamespaceUrl);
  85
  86                         if (Id != null)
  87                                 xel.SetAttribute (XmlEncryption.AttributeNames.Id, Id);
  88                         if (Target != null)
  89                                 xel.SetAttribute (XmlEncryption.AttributeNames.Target, Target);
  90
  91                         return xel;
  92                 }
  93
  94                 public void LoadXml (XmlElement value)
  95                 {
  96                         if (value == null)
  97                                 throw new ArgumentNullException ("value");
  98
  99                         if ((value.LocalName != XmlEncryption.ElementNames.EncryptionProperty) || (value.NamespaceURI != EncryptedXml.XmlEncNamespaceUrl))
 100                                 throw new CryptographicException ("Malformed EncryptionProperty element.");
 101                         else {
 102                                 if (value.HasAttribute (XmlEncryption.AttributeNames.Id))
 103                                         this.id = value.Attributes [XmlEncryption.AttributeNames.Id].Value;
 104                                 if (value.HasAttribute (XmlEncryption.AttributeNames.Target))
 105                                         this.target = value.Attributes [XmlEncryption.AttributeNames.Target].Value;
 106                         }
 107                 }
 108
 109                 #endregion // Methods
 110         }
 111 }
 112