/// <summary>
/// Validates the presence and correctness of a <ds:KeyInfo xmlns:ds="http://www.w3.org/2000/09/xmldsig#"/> among the any-xml-elements of a SubjectConfirmationData
/// </summary>
/// <param name="subjectConfirmationData">The subject confirmation data.</param>
public void ValidateKeyInfo(SubjectConfirmationData subjectConfirmationData)
{
if (subjectConfirmationData == null)
{
throw new Saml20FormatException("SubjectConfirmationData cannot be null when KeyInfo subelements are required");
}
if (subjectConfirmationData.AnyElements == null)
{
throw new Saml20FormatException(string.Format("SubjectConfirmationData element MUST have at least one {0} subelement", KeyInfo.ElementName));
}
var keyInfoFound = false;
foreach (var element in subjectConfirmationData.AnyElements)
{
if (element.NamespaceURI != Saml20Constants.Xmldsig || element.LocalName != KeyInfo.ElementName)
{
continue;
}
keyInfoFound = true;
// A KeyInfo element MUST identify a cryptographic key
if (!element.HasChildNodes)
{
throw new Saml20FormatException(string.Format("{0} subelement of SubjectConfirmationData MUST NOT be empty", KeyInfo.ElementName));
}
}
// There MUST BE at least one <ds:KeyInfo> element present (from the arbitrary elements list on SubjectConfirmationData
if (!keyInfoFound)
{
throw new Saml20FormatException(string.Format("SubjectConfirmationData element MUST contain at least one {0} in namespace {1}", KeyInfo.ElementName, Saml20Constants.Xmldsig));
}
}
/// <summary>
/// Validate SubjectConfirmationData.
/// </summary>
/// <param name="subjectConfirmationData">The subject confirmation data.</param>
/// <remarks>
/// [SAML2.0 standard] section 2.4.1.2
/// </remarks>
public void ValidateSubjectConfirmationData(SubjectConfirmationData subjectConfirmationData)
{
// If present it must be anyUri
if (subjectConfirmationData.Recipient != null)
{
if (!Uri.IsWellFormedUriString(subjectConfirmationData.Recipient, UriKind.Absolute))
{
throw new Saml20FormatException("Recipient of SubjectConfirmationData must be a wellformed absolute URI.");
}
}
// NotBefore MUST BE striclty less than NotOnOrAfter if they are both set
if (subjectConfirmationData.NotBefore != null && subjectConfirmationData.NotOnOrAfter != null && !(subjectConfirmationData.NotBefore < subjectConfirmationData.NotOnOrAfter))
{
throw new Saml20FormatException(string.Format("NotBefore {0} MUST BE less than NotOnOrAfter {1} on SubjectConfirmationData", Saml20Utils.ToUtcString(subjectConfirmationData.NotBefore.Value), Saml20Utils.ToUtcString(subjectConfirmationData.NotOnOrAfter.Value)));
}
// Make sure the extension-attributes are namespace-qualified and do not use reserved namespaces
if (subjectConfirmationData.AnyAttr != null)
{
_anyAttrValidator.ValidateXmlAnyAttributes(subjectConfirmationData.AnyAttr);
}
// Standards-defined extension type which has stricter rules than it's base type
if (subjectConfirmationData is KeyInfoConfirmationData)
{
_keyInfoValidator.ValidateKeyInfo(subjectConfirmationData);
}
}
public void ValidatesSubjectConfirmationDataTimeIntervalSettings()
{
// TODO: Split this up
// Arrange
var validator = new Saml20SubjectConfirmationDataValidator();
var subjectConfirmationData = new SubjectConfirmationData();
subjectConfirmationData.NotBefore = new DateTime(2008, 01, 30, 17, 13, 0, 500, DateTimeKind.Utc);
subjectConfirmationData.NotOnOrAfter = subjectConfirmationData.NotBefore.Value.AddHours(1);
validator.ValidateSubjectConfirmationData(subjectConfirmationData);
subjectConfirmationData.NotBefore = null;
validator.ValidateSubjectConfirmationData(subjectConfirmationData);
// DateTime validation wrt DateTime.UtcNow is NOT done by the validators
// so a future-NotBefore must be valid
subjectConfirmationData.NotBefore = subjectConfirmationData.NotOnOrAfter;
subjectConfirmationData.NotOnOrAfter = null;
validator.ValidateSubjectConfirmationData(subjectConfirmationData);
subjectConfirmationData.NotBefore = null;
// Act
validator.ValidateSubjectConfirmationData(subjectConfirmationData);
}
public void ValidatesSubjectConfirmationDataRecipient()
{
// Arrange
var subjectConfirmationData = new SubjectConfirmationData { Recipient = "urn:wellformed.uri:ok" };
var validator = new Saml20SubjectConfirmationDataValidator();
// Act
validator.ValidateSubjectConfirmationData(subjectConfirmationData);
}
public void ThrowsExceptionWhenSubjectConfirmationDataTimeIntervalIsInvalid()
{
// Arrange
var subjectConfirmationData = new SubjectConfirmationData();
subjectConfirmationData.NotBefore = new DateTime(2008, 01, 30, 17, 13, 0, 500, DateTimeKind.Utc);
subjectConfirmationData.NotOnOrAfter = subjectConfirmationData.NotBefore.Value.AddHours(-1);
var validator = new Saml20SubjectConfirmationDataValidator();
// Act
validator.ValidateSubjectConfirmationData(subjectConfirmationData);
}
public void ThrowsExceptionWhenSubjectConfirmationDataRecipientIsInvalid()
{
// Arrange
var subjectConfirmationData = new SubjectConfirmationData { Recipient = "malformed uri" };
var validator = new Saml20SubjectConfirmationDataValidator();
// Act
validator.ValidateSubjectConfirmationData(subjectConfirmationData);
}