//
-// XmlDsigExcC14NTransform.cs - XmlDsigExcC14NTransform implementation for XML Encryption
+// XmlDsigExcC14NTransform.cs - ExcC14N Transform implementation for XML Signature
+// http://www.w3.org/TR/xml-c14n
//
-// Author:
+// Authors:
+// Sebastien Pouliot <sebastien@ximian.com>
+// Aleksey Sanin (aleksey@aleksey.com)
// Tim Coleman (tim@timcoleman.com)
//
+// (C) 2002, 2003 Motus Technologies Inc. (http://www.motus.com)
+// (C) 2003 Aleksey Sanin (aleksey@aleksey.com)
// Copyright (C) Tim Coleman, 2004
-
+// Copyright (C) 2004-2005 Novell Inc. (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
-#if NET_2_0
-
-using Mono.Xml;
+using System.Collections;
using System.IO;
+using System.Runtime.InteropServices;
+using System.Text;
using System.Xml;
-namespace System.Security.Cryptography.Xml {
- public class XmlDsigExcC14NTransform : Transform {
-
- #region Fields
-
- XmlCanonicalizer canonicalizer;
- object inputObj;
- string inclusiveNamespacesPrefixList;
- bool includeComments;
+using Mono.Xml;
- #endregion // Fields
-
- #region Constructors
+namespace System.Security.Cryptography.Xml {
- public XmlDsigExcC14NTransform ()
+ public class XmlDsigExcC14NTransform : Transform {
+ private Type[] input;
+ private Type[] output;
+ private XmlCanonicalizer canonicalizer;
+ private Stream s;
+ private string inclusiveNamespacesPrefixList;
+
+ public XmlDsigExcC14NTransform ()
+ : this (false, null)
{
- Algorithm = XmlSignature.AlgorithmNamespaces.XmlDsigExcC14NTransform;
- canonicalizer = new XmlCanonicalizer (true, false);
}
- public XmlDsigExcC14NTransform (bool includeComments)
+ public XmlDsigExcC14NTransform (bool includeComments)
+ : this (includeComments, null)
{
- this.includeComments = includeComments;
- canonicalizer = new XmlCanonicalizer (true, includeComments);
}
- [MonoTODO ("What does inclusiveNamespacesPrefixList mean?")]
public XmlDsigExcC14NTransform (string inclusiveNamespacesPrefixList)
+ : this (false, inclusiveNamespacesPrefixList)
{
- this.inclusiveNamespacesPrefixList = inclusiveNamespacesPrefixList;
}
- [MonoTODO ("What does inclusiveNamespacesPrefixList mean?")]
public XmlDsigExcC14NTransform (bool includeComments, string inclusiveNamespacesPrefixList)
{
+ if (includeComments)
+ Algorithm = XmlSignature.AlgorithmNamespaces.XmlDsigExcC14NWithCommentsTransform;
+ else
+ Algorithm = XmlSignature.AlgorithmNamespaces.XmlDsigExcC14NTransform;
this.inclusiveNamespacesPrefixList = inclusiveNamespacesPrefixList;
- this.includeComments = includeComments;
+ canonicalizer = new XmlCanonicalizer (includeComments, true, PropagatedNamespaces);
}
-
- #endregion // Constructors
-
- #region Properties
public string InclusiveNamespacesPrefixList {
get { return inclusiveNamespacesPrefixList; }
}
public override Type[] InputTypes {
- get { return new Type [3] {typeof (System.IO.Stream), typeof (System.Xml.XmlDocument), typeof (System.Xml.XmlNodeList)}; }
+ get {
+ if (input == null) {
+ input = new Type [3];
+ input[0] = typeof (System.IO.Stream);
+ input[1] = typeof (System.Xml.XmlDocument);
+ input[2] = typeof (System.Xml.XmlNodeList);
+ }
+ return input;
+ }
}
public override Type[] OutputTypes {
- get { return new Type [1] {typeof (System.IO.Stream)}; }
+ get {
+ if (output == null) {
+ output = new Type [1];
+ output[0] = typeof (System.IO.Stream);
+ }
+ return output;
+ }
}
- #endregion // Properties
-
- #region Methods
-
- public override byte[] GetDigestedOutput (HashAlgorithm hash)
+ protected override XmlNodeList GetInnerXml ()
{
- return hash.ComputeHash ((Stream) GetOutput());
+ return null; // THIS IS DOCUMENTED AS SUCH
}
- protected override XmlNodeList GetInnerXml ()
+ public override byte[] GetDigestedOutput (HashAlgorithm hash)
{
- return null;
+ // no null check, MS throws a NullReferenceException here
+ return hash.ComputeHash ((Stream) GetOutput ());
}
- public override object GetOutput ()
+ public override object GetOutput ()
{
- Stream s = null;
-
- if (inputObj is Stream) {
- XmlDocument doc = new XmlDocument ();
- doc.PreserveWhitespace = true; // REALLY IMPORTANT
- doc.Load (inputObj as Stream);
- s = canonicalizer.Canonicalize (doc);
- }
- else if (inputObj is XmlDocument)
- s = canonicalizer.Canonicalize (inputObj as XmlDocument);
- else if (inputObj is XmlNodeList)
- s = canonicalizer.Canonicalize (inputObj as XmlNodeList);
-
- // note: there is no default are other types won't throw an exception
-
return (object) s;
}
- public override object GetOutput (Type type)
+ public override object GetOutput (Type type)
{
- if (type == Type.GetType ("Stream"))
+ if (type == typeof (Stream))
return GetOutput ();
throw new ArgumentException ("type");
}
- public override void LoadInnerXml (XmlNodeList nodeList)
+ public override void LoadInnerXml (XmlNodeList nodeList)
{
+ // documented as not changing the state of the transform
}
-
- public override void LoadInput (object obj)
+
+ public override void LoadInput (object obj)
{
- inputObj = obj;
+ canonicalizer.InclusiveNamespacesPrefixList = InclusiveNamespacesPrefixList;
+ // possible input: Stream, XmlDocument, and XmlNodeList
+ Stream stream = (obj as Stream);
+ if (stream != null) {
+ XmlDocument doc = new XmlDocument ();
+ doc.PreserveWhitespace = true; // REALLY IMPORTANT
+ doc.XmlResolver = GetResolver ();
+ doc.Load (new XmlSignatureStreamReader (new StreamReader (stream)));
+// doc.Load ((Stream) obj);
+ s = canonicalizer.Canonicalize (doc);
+ return;
+ }
+
+ XmlDocument xd = (obj as XmlDocument);
+ if (xd != null) {
+ s = canonicalizer.Canonicalize (xd);
+ return;
+ }
+
+ XmlNodeList nl = (obj as XmlNodeList);
+ if (nl != null) {
+ s = canonicalizer.Canonicalize (nl);
+ }
+ else
+ throw new ArgumentException ("obj");
}
-
- #endregion // Methods
}
}
-#endif
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