/// <summary>
/// Static constructor that initializes the default <see cref="CryptoProviderFactory"/>.
/// </summary>
static DSigSerializer()
{
Default = new DSigSerializer();
}
internal void WriteAndReplaceSignature(XmlWriter writer, Signature signature, DSigSerializer dSigSerializer)
{
if (writer == null)
{
throw LogExceptionMessage(new ArgumentNullException(nameof(writer)));
}
if (signature == null)
{
throw LogExceptionMessage(new ArgumentNullException(nameof(signature)));
}
if (dSigSerializer == null)
{
throw LogExceptionMessage(new ArgumentNullException(nameof(dSigSerializer)));
}
if (!MoveToFirst())
{
throw LogExceptionMessage(new ArgumentException("XmlTokenBufferIsEmpty"));
}
bool include = true;
do
{
switch (NodeType)
{
case XmlNodeType.Element:
bool isEmpty = IsEmptyElement;
// if the current XmlToken represents a placeholder signature element, skip writing the placeholder token
// and write the signature using the provided DSigSerializer.
if (LocalName == EnvelopedSignatureWriter.SignaturePlaceholder)
{
dSigSerializer.WriteSignature(writer, signature);
include = false;
}
else
{
writer.WriteStartElement(Prefix, LocalName, Namespace);
}
if (MoveToFirstAttribute())
{
do
{
if (include)
{
writer.WriteAttributeString(Prefix, LocalName, Namespace, Value);
}
}while (MoveToNextAttribute());
}
if (isEmpty)
{
goto case XmlNodeType.EndElement;
}
break;
case XmlNodeType.EndElement:
if (include)
{
writer.WriteEndElement();
}
else
{
// skip writing EndElement as it's already written by the provided DSigSerializer.
include = true;
}
break;
case XmlNodeType.CDATA:
writer.WriteCData(Value);
break;
case XmlNodeType.Comment:
writer.WriteComment(Value);
break;
case XmlNodeType.Text:
writer.WriteString(Value);
break;
case XmlNodeType.SignificantWhitespace:
case XmlNodeType.Whitespace:
writer.WriteWhitespace(Value);
break;
case XmlNodeType.DocumentType:
case XmlNodeType.XmlDeclaration:
break;
}
}while (MoveToNext());
}