Bump bockbuild.
[mono.git] / mcs / class / System.Security / System.Security.Cryptography.Xml / XmlDsigEnvelopedSignatureTransform.cs
index 45c69d274c6966fc4daaf732a28f506da136fa96..80f3c0db0c3a2df59e144216678f12fc5ca99411 100644 (file)
@@ -4,42 +4,64 @@
 //
 // Author:
 //     Sebastien Pouliot (spouliot@motus.com)
+//     Atsushi Enomoto (atsushi@ximian.com)
 //
 // (C) 2002, 2003 Motus Technologies Inc. (http://www.motus.com)
+// (C) 2004 Novell Inc.
 //
 
+//
+// 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.IO;
 using System.Xml;
 
 namespace System.Security.Cryptography.Xml { 
 
-       [MonoTODO]
        public class XmlDsigEnvelopedSignatureTransform : Transform {
 
                private Type[] input;
                private Type[] output;
                private bool comments;
+               private object inputObj;
 
-               public XmlDsigEnvelopedSignatureTransform () 
+               public XmlDsigEnvelopedSignatureTransform ()
+                       : this (false)
                {
-                       comments = false;
                }
 
                public XmlDsigEnvelopedSignatureTransform (bool includeComments) 
                {
+                       Algorithm = XmlSignature.AlgorithmNamespaces.XmlDsigEnvelopedSignatureTransform;
                        comments = includeComments;
                }
 
                public override Type[] InputTypes {
                        get {
                                if (input == null) {
-                                       lock (this) {
-                                               // this way the result is cached if called multiple time
-                                               input = new Type [3];
-                                               input[0] = typeof (System.IO.Stream);
-                                               input[1] = typeof (System.Xml.XmlDocument);
-                                               input[2] = typeof (System.Xml.XmlNodeList);
-                                       }
+                                       input = new Type [3];
+                                       input[0] = typeof (System.IO.Stream);
+                                       input[1] = typeof (System.Xml.XmlDocument);
+                                       input[2] = typeof (System.Xml.XmlNodeList);
                                }
                                return input;
                        }
@@ -48,12 +70,9 @@ namespace System.Security.Cryptography.Xml {
                public override Type[] OutputTypes {
                        get {
                                if (output == null) {
-                                       lock (this) {
-                                               // this way the result is cached if called multiple time
-                                               output = new Type [2];
-                                               input[0] = typeof (System.Xml.XmlDocument);
-                                               input[1] = typeof (System.Xml.XmlNodeList);
-                                       }
+                                       output = new Type [2];
+                                       output [0] = typeof (System.Xml.XmlDocument);
+                                       output [1] = typeof (System.Xml.XmlNodeList);
                                }
                                return output;
                        }
@@ -64,16 +83,76 @@ namespace System.Security.Cryptography.Xml {
                        return null; // THIS IS DOCUMENTED AS SUCH
                }
 
-               [MonoTODO()]
-               public override object GetOutput() 
+               // NOTE: This method never supports the requirements written
+               // in xmldsig spec that says its input is canonicalized before
+               // transforming. This method just removes Signature element.
+               // Canonicalization is done in SignedXml.
+               public override object GetOutput ()
                {
-//                     return (object) new XmlNodeList ();
-                       return null;
+                       XmlDocument doc = null;
+
+                       // possible input: Stream, XmlDocument, and XmlNodeList
+                       if (inputObj is Stream) {
+                               doc = new XmlDocument ();
+                               doc.PreserveWhitespace = true;
+                               doc.XmlResolver = GetResolver ();
+                               doc.Load (new XmlSignatureStreamReader (
+                                       new StreamReader (inputObj as Stream)));
+                               return GetOutputFromNode (doc, GetNamespaceManager (doc), true);
+                       }
+                       else if (inputObj is XmlDocument) {
+                               doc = inputObj as XmlDocument;
+                               return GetOutputFromNode (doc, GetNamespaceManager (doc), true);
+                       }
+                       else if (inputObj is XmlNodeList) {
+                               ArrayList al = new ArrayList ();
+                               XmlNodeList nl = (XmlNodeList) inputObj;
+                               if (nl.Count > 0) {
+                                       XmlNamespaceManager m = GetNamespaceManager (nl.Item (0));
+                                       ArrayList tmp = new ArrayList ();
+                                       foreach (XmlNode n in nl)
+                                               tmp.Add (n);
+                                       foreach (XmlNode n in tmp)
+                                               if (n.SelectNodes ("ancestor-or-self::dsig:Signature", m).Count == 0)
+                                                       al.Add (GetOutputFromNode (n, m, false));
+                               }
+                               return new XmlDsigNodeList (al);
+                       }
+                       // Note that it is unexpected behavior with related to InputTypes (MS.NET accepts XmlElement)
+                       else if (inputObj is XmlElement) {
+                               XmlElement el = inputObj as XmlElement;
+                               XmlNamespaceManager m = GetNamespaceManager (el);
+                               if (el.SelectNodes ("ancestor-or-self::dsig:Signature", m).Count == 0)
+                                       return GetOutputFromNode (el, m, true);
+                       }
+
+                       throw new NullReferenceException ();
+               }
+
+               private XmlNamespaceManager GetNamespaceManager (XmlNode n)
+               {
+                       XmlDocument doc = ((n is XmlDocument) ? (n as XmlDocument) : n.OwnerDocument);
+                       XmlNamespaceManager nsmgr = new XmlNamespaceManager (doc.NameTable);
+                       nsmgr.AddNamespace ("dsig", XmlSignature.NamespaceURI);
+                       return nsmgr;
+               }
+
+               private XmlNode GetOutputFromNode (XmlNode input, XmlNamespaceManager nsmgr, bool remove)
+               {
+                       if (remove) {
+                               XmlNodeList nl = input.SelectNodes ("descendant-or-self::dsig:Signature", nsmgr);
+                               ArrayList al = new ArrayList ();
+                               foreach (XmlNode n in nl)
+                                       al.Add (n);
+                               foreach (XmlNode n in al)
+                                       n.ParentNode.RemoveChild (n);
+                       }
+                       return input;
                }
 
                public override object GetOutput (Type type) 
                {
-                       if (type == Type.GetType ("Stream"))
+                       if (type == typeof (Stream))
                                return GetOutput ();
                        throw new ArgumentException ("type");
                }
@@ -83,10 +162,9 @@ namespace System.Security.Cryptography.Xml {
                        // NO CHANGE
                }
 
-               [MonoTODO()]
                public override void LoadInput (object obj) 
                {
-                       //      if (type.Equals (Stream.GetType ())
+                       inputObj = obj;
                }
        }
 }