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//
// KeyInfo.cs - Xml Signature KeyInfo implementation
//
// Author:
// Sebastien Pouliot (spouliot@motus.com)
//
// (C) 2002, 2003 Motus Technologies Inc. (http://www.motus.com)
//
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System.Collections;
using System.Xml;
namespace System.Security.Cryptography.Xml {
public class KeyInfo : IEnumerable {
private ArrayList Info;
private string id;
public KeyInfo()
{
Info = new ArrayList ();
}
public int Count {
get { return Info.Count; }
}
public string Id {
get { return id; }
set { id = value; }
}
public void AddClause (KeyInfoClause clause)
{
Info.Add (clause);
}
public IEnumerator GetEnumerator ()
{
return Info.GetEnumerator ();
}
public IEnumerator GetEnumerator (Type requestedObjectType)
{
// Build a new ArrayList...
ArrayList TypeList = new ArrayList ();
IEnumerator e = Info.GetEnumerator ();
while (true) {
// ...with all object of specified type...
if ((e.Current).GetType().Equals (requestedObjectType))
TypeList.Add (e.Current);
if (!e.MoveNext ())
break;
}
// ...and return its enumerator
return TypeList.GetEnumerator ();
}
public XmlElement GetXml ()
{
XmlDocument document = new XmlDocument ();
XmlElement xel = document.CreateElement (XmlSignature.ElementNames.KeyInfo, XmlSignature.NamespaceURI);
// we add References afterward so we don't end up with extraneous
// xmlns="..." in each reference elements.
foreach (KeyInfoClause kic in Info) {
XmlNode xn = kic.GetXml ();
XmlNode newNode = document.ImportNode (xn, true);
xel.AppendChild (newNode);
}
return xel;
}
public void LoadXml (XmlElement value)
{
if (value == null)
throw new ArgumentNullException ("value");
Id = value.Attributes ["Id"] != null ? value.GetAttribute ("Id") : null;
if ((value.LocalName == XmlSignature.ElementNames.KeyInfo) && (value.NamespaceURI == XmlSignature.NamespaceURI)) {
foreach (XmlNode n in value.ChildNodes) {
if (n.NodeType != XmlNodeType.Element)
continue;
KeyInfoClause kic = null;
switch (n.LocalName) {
case XmlSignature.ElementNames.KeyValue:
XmlNodeList xnl = n.ChildNodes;
if (xnl.Count > 0) {
// we must now treat the whitespace !
foreach (XmlNode m in xnl) {
switch (m.LocalName) {
case XmlSignature.ElementNames.DSAKeyValue:
kic = (KeyInfoClause) new DSAKeyValue ();
break;
case XmlSignature.ElementNames.RSAKeyValue:
kic = (KeyInfoClause) new RSAKeyValue ();
break;
}
}
}
break;
case XmlSignature.ElementNames.KeyName:
kic = (KeyInfoClause) new KeyInfoName ();
break;
case XmlSignature.ElementNames.RetrievalMethod:
kic = (KeyInfoClause) new KeyInfoRetrievalMethod ();
break;
case XmlSignature.ElementNames.X509Data:
kic = (KeyInfoClause) new KeyInfoX509Data ();
break;
case XmlSignature.ElementNames.RSAKeyValue:
kic = (KeyInfoClause) new RSAKeyValue ();
break;
#if NET_2_0
case XmlSignature.ElementNames.EncryptedKey:
kic = (KeyInfoClause) new KeyInfoEncryptedKey ();
break;
#endif
default:
kic = (KeyInfoClause) new KeyInfoNode ();
break;
}
if (kic != null) {
kic.LoadXml ((XmlElement) n);
AddClause (kic);
}
}
}
// No check is performed on MS.NET...
}
}
}
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