Add full-scratch expression parser implementation.
[mono.git] / mcs / class / System.Security / System.Security.Cryptography.Xml / KeyInfoRetrievalMethod.cs
1 //
2 // KeyInfoRetrievalMethod.cs - KeyInfoRetrievalMethod implementation for XML Signature
3 //
4 // Author:
5 //      Sebastien Pouliot  <sebastien@ximian.com>
6 //      Tim Coleman (tim@timcoleman.com)
7 //
8 // (C) 2002, 2003 Motus Technologies Inc. (http://www.motus.com)
9 // Copyright (C) Tim Coleman, 2004
10 // Copyright (C) 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.Runtime.InteropServices;
33 using System.Xml;
34
35 namespace System.Security.Cryptography.Xml {
36
37         public class KeyInfoRetrievalMethod : KeyInfoClause {
38
39                 private string URI;
40                 private XmlElement element;
41 #if NET_2_0
42                 private string type;
43 #endif
44
45                 public KeyInfoRetrievalMethod ()
46                 {
47                 }
48
49                 public KeyInfoRetrievalMethod (string strUri) 
50                 {
51                         URI = strUri;
52                 }
53
54 #if NET_2_0
55                 public KeyInfoRetrievalMethod (string strUri, string strType)
56                         : this (strUri)
57                 {
58                         Type = strType;
59                 }
60
61                 [ComVisible (false)]
62                 public string Type {
63                         get { return type; }
64                         set {
65                                 element = null;
66                                 type = value;
67                         }
68                 }
69 #endif
70
71                 public string Uri {
72                         get { return URI; }
73                         set {
74                                 element = null;
75                                 URI = value;
76                         }
77                 }
78
79
80                 public override XmlElement GetXml () 
81                 {
82                         if (element != null)
83                                 return element;
84
85                         XmlDocument document = new XmlDocument ();
86                         XmlElement xel = document.CreateElement (XmlSignature.ElementNames.RetrievalMethod, XmlSignature.NamespaceURI);
87 #if NET_2_0
88                         if ((URI != null) && (URI.Length > 0))
89                                 xel.SetAttribute (XmlSignature.AttributeNames.URI, URI);
90                         if (Type != null)
91                                 xel.SetAttribute (XmlSignature.AttributeNames.Type, Type);
92 #else
93                         if (URI != null)
94                                 xel.SetAttribute (XmlSignature.AttributeNames.URI, URI);
95 #endif
96                         return xel;
97                 }
98
99                 public override void LoadXml (XmlElement value) 
100                 {
101                         if (value == null)
102                                 throw new ArgumentNullException ();
103
104                         if ((value.LocalName != XmlSignature.ElementNames.RetrievalMethod) || (value.NamespaceURI != XmlSignature.NamespaceURI)) {
105                                 URI = ""; // not null - so we return URI="" as attribute !!!
106                         } else {
107                                 URI = value.Attributes [XmlSignature.AttributeNames.URI].Value;
108 #if NET_2_0
109                                 if (value.HasAttribute (XmlSignature.AttributeNames.Type))
110                                         Type = value.Attributes [XmlSignature.AttributeNames.Type].Value;
111 #endif
112                                 element = value;
113                         }
114                 }
115         }
116 }