/// <summary>
/// Merges the modified attributes into <code>AttributeStatement</code> of the assertion.
/// </summary>
private void InsertAttributes()
{
if (_assertionAttributes == null)
{
return;
}
// Generate the new AttributeStatement
var attributeStatement = new AttributeStatement();
var statements = new List <object>(_encryptedAssertionAttributes.Count + _assertionAttributes.Count);
statements.AddRange(_assertionAttributes.ToArray());
statements.AddRange(_encryptedAssertionAttributes.ToArray());
attributeStatement.Items = statements.ToArray();
var list = XmlAssertion.GetElementsByTagName(AttributeStatement.ElementName, Saml20Constants.Assertion);
if (list.Count > 0)
{
// Remove the old AttributeStatement.
XmlAssertion.RemoveChild(list[0]);
// FIX _samlAssertion.DocumentElement.RemoveChild(list[0]);
}
// Only insert a new AttributeStatement if there are attributes.
if (statements.Count > 0)
{
// Convert the new AttributeStatement to the Document Object Model and make a silent prayer that one day we will
// be able to make this transition in a more elegant way.
var attributeStatementDoc = Serialization.Serialize(attributeStatement);
var attr = XmlAssertion.OwnerDocument.ImportNode(attributeStatementDoc.DocumentElement, true);
// Insert the new statement.
XmlAssertion.AppendChild(attr);
}
_encryptedAssertionAttributes = null;
_assertionAttributes = null;
}
/// <summary>
/// Extracts the list of attributes from the <AttributeStatement> of the assertion, and
/// stores it in <code>_assertionAttributes</code>.
/// </summary>
private void ExtractAttributes()
{
_assertionAttributes = new List <SamlAttribute>(0);
_encryptedAssertionAttributes = new List <EncryptedElement>(0);
var list = XmlAssertion.GetElementsByTagName(AttributeStatement.ElementName, Saml20Constants.Assertion);
if (list.Count == 0)
{
return;
}
// NOTE It would be nice to implement a better-performing solution where only the AttributeStatement is converted.
// NOTE Namespace issues in the xml-schema "type"-attribute prevents this, though.
var assertion = Serialization.Deserialize <Assertion>(new XmlNodeReader(XmlAssertion));
var attributeStatements = assertion.GetAttributeStatements();
if (attributeStatements.Count == 0 || attributeStatements[0].Items == null)
{
return;
}
var attributeStatement = attributeStatements[0];
foreach (var item in attributeStatement.Items)
{
if (item is SamlAttribute)
{
_assertionAttributes.Add((SamlAttribute)item);
}
if (item is EncryptedElement)
{
_encryptedAssertionAttributes.Add((EncryptedElement)item);
}
}
}
