bool ImportHttpAuthScheme(MetadataImporter importer,
HttpTransportBindingElement bindingElement,
PolicyConversionContext context)
{
var assertions = context.GetBindingAssertions();
var authSchemes = AuthenticationSchemes.None;
var httpsTransport = bindingElement as HttpsTransportBindingElement;
bool certificate = httpsTransport != null ?
httpsTransport.RequireClientCertificate : false;
var authElements = PolicyImportHelper.FindAssertionByNS(
assertions, PolicyImportHelper.HttpAuthNS);
foreach (XmlElement authElement in authElements)
{
assertions.Remove(authElement);
if (certificate)
{
importer.AddWarning(
"Invalid authentication assertion while " +
"using client certificate: {0}", authElement.OuterXml);
return(false);
}
switch (authElement.LocalName)
{
case "BasicAuthentication":
authSchemes |= AuthenticationSchemes.Basic;
break;
case "NtlmAuthentication":
authSchemes |= AuthenticationSchemes.Ntlm;
break;
case "DigestAuthentication":
authSchemes |= AuthenticationSchemes.Digest;
break;
case "NegotiateAuthentication":
authSchemes |= AuthenticationSchemes.Negotiate;
break;
default:
importer.AddWarning(
"Invalid policy assertion: {0}", authElement.OuterXml);
return(false);
}
}
bindingElement.AuthenticationScheme = authSchemes;
return(true);
}
