public static ServiceHost AddMetadataBehaviors(
this ServiceHost host,
MetadataFeatures features = MetadataFeatures.All)
{
if (host == null)
{
throw new ArgumentNullException(nameof(host));
}
var serviceMetadataBehavior = host.Description.Behaviors.Find <ServiceMetadataBehavior>();
// if no metadata is requested - remove the behavior altogether
if (features == MetadataFeatures.None)
{
if (serviceMetadataBehavior != null)
{
host.Description.Behaviors.Remove(serviceMetadataBehavior);
}
return(host);
}
// add the metadata behavior, if it is not there yet
if (serviceMetadataBehavior == null)
{
serviceMetadataBehavior = new ServiceMetadataBehavior();
host.Description.Behaviors.Add(serviceMetadataBehavior);
}
// disable the help page if not requested or if we have REST-ful endpoints
if (!features.HasFlag(MetadataFeatures.HelpPage) ||
host.Description.Endpoints.Any(ep => ep.Binding is WebHttpBinding))
{
var serviceDebugBehavior = host.Description.Behaviors.Find <ServiceDebugBehavior>();
if (serviceDebugBehavior != null)
{
serviceDebugBehavior.HttpHelpPageEnabled =
serviceDebugBehavior.HttpsHelpPageEnabled = false;
}
var ep = host.Description.Endpoints.Where(e => e.Binding is WebHttpBinding).FirstOrDefault();
if (ep != null)
{
if (ep.EndpointBehaviors.Where(b => b is WebHttpBehavior).FirstOrDefault() is WebHttpBehavior epb)
{
epb.HelpEnabled = false;
}
}
}
// disable the Web HTTP (REST) help page
if (!features.HasFlag(MetadataFeatures.WebHttpHelpPage))
{
var ep = host.Description.Endpoints.Where(e => e.Binding is WebHttpBinding).FirstOrDefault();
if (ep != null)
{
if (ep.EndpointBehaviors.Where(b => b is WebHttpBehavior).FirstOrDefault() is WebHttpBehavior epb)
{
epb.HelpEnabled = false;
}
}
}
// add the GET WSDL behavior if requested
if (features.HasFlag(MetadataFeatures.Wsdl))
{
serviceMetadataBehavior.HttpsGetEnabled = host.BaseAddresses.Any(a => a.Scheme == Uri.UriSchemeHttps);
#if DEBUG
serviceMetadataBehavior.HttpGetEnabled = host.BaseAddresses.Any(a => a.Scheme == Uri.UriSchemeHttp);
#endif
Debug.WriteLineIf(
!serviceMetadataBehavior.HttpGetEnabled && !serviceMetadataBehavior.HttpsGetEnabled,
"\n**** If you need a GET service metadata (WSDL) behavior, define a base address with an http(s) scheme. ***\n");
}
else
{
serviceMetadataBehavior.HttpGetEnabled =
serviceMetadataBehavior.HttpsGetEnabled = false;
serviceMetadataBehavior.HttpGetUrl =
serviceMetadataBehavior.HttpsGetUrl = null;
}
// if IMetadataExchange contract is requested - add it
if (features.HasFlag(MetadataFeatures.Mex))
{
host.AddMexEndpoints();
}
return(host);
}
