mcs/class/Microsoft.Web.Services/Microsoft.Web.Services.Security/SecurityTokenReference.cs

   1 //
   2 // SecurityTokenReference.cs: Handles WS-Security SecurityTokenReference
   3 //
   4 // Author:
   5 //      Sebastien Pouliot (spouliot@motus.com)
   6 //
   7 // (C) 2002, 2003 Motus Technologies Inc. (http://www.motus.com)
   8 //
   9
  10 using System;
  11 using System.Security.Cryptography.Xml;
  12 using System.Xml;
  13 using Microsoft.Web.Services;
  14 #if !WSE1
  15 using Microsoft.Web.Services.Xml;
  16 #endif
  17
  18 namespace Microsoft.Web.Services.Security {
  19
  20         public class SecurityTokenReference : KeyInfoClause, IXmlElement {
  21 // TODO WSE2 public class SecurityTokenReference : SecurityTokenReferenceType
  22
  23                 private KeyIdentifier kid;
  24                 private string reference;
  25
  26                 public SecurityTokenReference () : base () {}
  27
  28                 public SecurityTokenReference (XmlElement element) : base ()
  29                 {
  30                         LoadXml (element);
  31                 }
  32
  33                 public KeyIdentifier KeyIdentifier {
  34                         get { return kid; }
  35                         set { kid = value; }
  36                 }
  37
  38                 public string Reference {
  39                         get { return reference; }
  40                         set { reference = value; }
  41                 }
  42
  43                 // note: old format used by S.S.C.Xml
  44                 public override XmlElement GetXml ()
  45                 {
  46                         return GetXml (new XmlDocument ());
  47                 }
  48
  49                 public XmlElement GetXml (XmlDocument document)
  50                 {
  51                         if (document == null)
  52                                 throw new ArgumentNullException ("document");
  53
  54                         XmlElement str = document.CreateElement (WSSecurity.Prefix, WSSecurity.ElementNames.SecurityTokenReference, WSSecurity.NamespaceURI);
  55                         if (kid != null)
  56                                 str.AppendChild (kid.GetXml (document));
  57                         if (reference != null) {
  58                                 XmlAttribute uri = document.CreateAttribute (WSSecurity.AttributeNames.Uri);
  59                                 uri.InnerText = "#" + reference;
  60                                 XmlElement r = document.CreateElement (WSSecurity.Prefix, WSSecurity.ElementNames.Reference, WSSecurity.NamespaceURI);
  61                                 r.Attributes.Append (uri);
  62                                 str.AppendChild (r);
  63                         }
  64                         return str;
  65                 }
  66
  67                 public override void LoadXml (XmlElement element)
  68                 {
  69                         if (element == null)
  70                                 throw new ArgumentNullException ("element");
  71                         if ((element.LocalName != WSSecurity.ElementNames.SecurityTokenReference) || (element.NamespaceURI != WSSecurity.NamespaceURI))
  72                                 throw new System.ArgumentException ("invalid LocalName or NamespaceURI");
  73
  74                         XmlNodeList xnl = element.GetElementsByTagName (WSSecurity.ElementNames.KeyIdentifier, WSSecurity.NamespaceURI);
  75                         if ((xnl != null) && (xnl.Count == 1)) {
  76                                 kid = new KeyIdentifier ((xnl [0] as XmlElement));
  77                         }
  78
  79                         xnl = element.GetElementsByTagName (WSSecurity.ElementNames.Reference, WSSecurity.NamespaceURI);
  80                         if ((xnl != null) && (xnl.Count == 1)) {
  81                                 XmlAttribute uri = xnl [0].Attributes [WSSecurity.AttributeNames.Uri];
  82                                 if (uri != null) {
  83                                         reference = uri.InnerText;
  84                                         if (reference [0] == '#')
  85                                                 reference = reference.Substring (1);
  86                                 }
  87                         }
  88                 }
  89         }
  90 }