public void WriteHash(HashAlgorithm hash, DocPosition docPos, AncestralNamespaceContextManager anc)
{
Hashtable nsLocallyDeclared = new Hashtable();
SortedList nsListToRender = new SortedList(new NamespaceSortOrder());
SortedList attrListToRender = new SortedList(new AttributeSortOrder());
UTF8Encoding utf8 = new UTF8Encoding(false);
byte[] rgbData;
XmlAttributeCollection attrList = Attributes;
if (attrList != null)
{
foreach (XmlAttribute attr in attrList)
{
if (((CanonicalXmlAttribute)attr).IsInNodeSet || Utils.IsNamespaceNode(attr) || Utils.IsXmlNamespaceNode(attr))
{
if (Utils.IsNamespaceNode(attr))
{
anc.TrackNamespaceNode(attr, nsListToRender, nsLocallyDeclared);
}
else if (Utils.IsXmlNamespaceNode(attr))
{
anc.TrackXmlNamespaceNode(attr, nsListToRender, attrListToRender, nsLocallyDeclared);
}
else if (IsInNodeSet)
{
attrListToRender.Add(attr, null);
}
}
}
}
if (!Utils.IsCommittedNamespace(this, Prefix, NamespaceURI))
{
string name = ((Prefix.Length > 0) ? "xmlns" + ":" + Prefix : "xmlns");
XmlAttribute nsattrib = (XmlAttribute)OwnerDocument.CreateAttribute(name);
nsattrib.Value = NamespaceURI;
anc.TrackNamespaceNode(nsattrib, nsListToRender, nsLocallyDeclared);
}
if (IsInNodeSet)
{
anc.GetNamespacesToRender(this, attrListToRender, nsListToRender, nsLocallyDeclared);
rgbData = utf8.GetBytes("<" + Name);
hash.TransformBlock(rgbData, 0, rgbData.Length, rgbData, 0);
foreach (object attr in nsListToRender.GetKeyList())
{
(attr as CanonicalXmlAttribute).WriteHash(hash, docPos, anc);
}
foreach (object attr in attrListToRender.GetKeyList())
{
(attr as CanonicalXmlAttribute).WriteHash(hash, docPos, anc);
}
rgbData = utf8.GetBytes(">");
hash.TransformBlock(rgbData, 0, rgbData.Length, rgbData, 0);
}
anc.EnterElementContext();
anc.LoadUnrenderedNamespaces(nsLocallyDeclared);
anc.LoadRenderedNamespaces(nsListToRender);
XmlNodeList childNodes = ChildNodes;
foreach (XmlNode childNode in childNodes)
{
CanonicalizationDispatcher.WriteHash(childNode, hash, docPos, anc);
}
anc.ExitElementContext();
if (IsInNodeSet)
{
rgbData = utf8.GetBytes("</" + Name + ">");
hash.TransformBlock(rgbData, 0, rgbData.Length, rgbData, 0);
}
}
// This method gets the attributes that should be propagated
internal static CanonicalXmlNodeList GetPropagatedAttributes(XmlElement elem)
{
if (elem == null)
{
return(null);
}
CanonicalXmlNodeList namespaces = new CanonicalXmlNodeList();
XmlNode ancestorNode = elem;
bool bDefNamespaceToAdd = true;
while (ancestorNode != null)
{
XmlElement ancestorElement = ancestorNode as XmlElement;
if (ancestorElement == null)
{
ancestorNode = ancestorNode.ParentNode;
continue;
}
if (!Utils.IsCommittedNamespace(ancestorElement, ancestorElement.Prefix, ancestorElement.NamespaceURI))
{
// Add the namespace attribute to the collection if needed
if (!Utils.IsRedundantNamespace(ancestorElement, ancestorElement.Prefix, ancestorElement.NamespaceURI))
{
string name = ((ancestorElement.Prefix.Length > 0) ? "xmlns:" + ancestorElement.Prefix : "xmlns");
XmlAttribute nsattrib = elem.OwnerDocument.CreateAttribute(name);
nsattrib.Value = ancestorElement.NamespaceURI;
namespaces.Add(nsattrib);
}
}
if (ancestorElement.HasAttributes)
{
XmlAttributeCollection attribs = ancestorElement.Attributes;
foreach (XmlAttribute attrib in attribs)
{
// Add a default namespace if necessary
if (bDefNamespaceToAdd && attrib.LocalName == "xmlns")
{
XmlAttribute nsattrib = elem.OwnerDocument.CreateAttribute("xmlns");
nsattrib.Value = attrib.Value;
namespaces.Add(nsattrib);
bDefNamespaceToAdd = false;
continue;
}
// retain the declarations of type 'xml:*' as well
if (attrib.Prefix == "xmlns" || attrib.Prefix == "xml")
{
namespaces.Add(attrib);
continue;
}
if (attrib.NamespaceURI.Length > 0)
{
if (!Utils.IsCommittedNamespace(ancestorElement, attrib.Prefix, attrib.NamespaceURI))
{
// Add the namespace attribute to the collection if needed
if (!Utils.IsRedundantNamespace(ancestorElement, attrib.Prefix, attrib.NamespaceURI))
{
string name = ((attrib.Prefix.Length > 0) ? "xmlns:" + attrib.Prefix : "xmlns");
XmlAttribute nsattrib = elem.OwnerDocument.CreateAttribute(name);
nsattrib.Value = attrib.NamespaceURI;
namespaces.Add(nsattrib);
}
}
}
}
}
ancestorNode = ancestorNode.ParentNode;
}
return(namespaces);
}
public void Write(StringBuilder strBuilder, DocPosition docPos, AncestralNamespaceContextManager anc)
{
Hashtable nsLocallyDeclared = new Hashtable();
SortedList nsListToRender = new SortedList(new NamespaceSortOrder());
SortedList attrListToRender = new SortedList(new AttributeSortOrder());
XmlAttributeCollection attrList = Attributes;
if (attrList != null)
{
foreach (XmlAttribute attr in attrList)
{
if (((CanonicalXmlAttribute)attr).IsInNodeSet || Utils.IsNamespaceNode(attr) || Utils.IsXmlNamespaceNode(attr))
{
if (Utils.IsNamespaceNode(attr))
{
anc.TrackNamespaceNode(attr, nsListToRender, nsLocallyDeclared);
}
else if (Utils.IsXmlNamespaceNode(attr))
{
anc.TrackXmlNamespaceNode(attr, nsListToRender, attrListToRender, nsLocallyDeclared);
}
else if (IsInNodeSet)
{
attrListToRender.Add(attr, null);
}
}
}
}
if (!Utils.IsCommittedNamespace(this, Prefix, NamespaceURI))
{
string name = ((Prefix.Length > 0) ? "xmlns" + ":" + Prefix : "xmlns");
XmlAttribute nsattrib = (XmlAttribute)OwnerDocument.CreateAttribute(name);
nsattrib.Value = NamespaceURI;
anc.TrackNamespaceNode(nsattrib, nsListToRender, nsLocallyDeclared);
}
if (IsInNodeSet)
{
anc.GetNamespacesToRender(this, attrListToRender, nsListToRender, nsLocallyDeclared);
strBuilder.Append('<').Append(Name);
foreach (object attr in nsListToRender.GetKeyList())
{
(attr as CanonicalXmlAttribute).Write(strBuilder, docPos, anc);
}
foreach (object attr in attrListToRender.GetKeyList())
{
(attr as CanonicalXmlAttribute).Write(strBuilder, docPos, anc);
}
strBuilder.Append('>');
}
anc.EnterElementContext();
anc.LoadUnrenderedNamespaces(nsLocallyDeclared);
anc.LoadRenderedNamespaces(nsListToRender);
XmlNodeList childNodes = ChildNodes;
foreach (XmlNode childNode in childNodes)
{
CanonicalizationDispatcher.Write(childNode, strBuilder, docPos, anc);
}
anc.ExitElementContext();
if (IsInNodeSet)
{
strBuilder.Append("</" + Name + ">");
}
}