private async Task <Stream> DownloadSchemaImportAsync(Uri schemaUri, CancellationToken cancellationToken)
{
MetadataExchangeResolver metadataExchangeResolver = MetadataExchangeResolver.Create(
new EndpointAddress(schemaUri),
_httpCredentialsProvider?.Clone() as IHttpCredentialsProvider,
_clientCertificatesProvider?.Clone() as IClientCertificateProvider,
_serverCertificateValidationProvider?.Clone() as IServerCertificateValidationProvider);
return(await metadataExchangeResolver.DownloadMetadataFileAsync(cancellationToken).ConfigureAwait(false));
}
private async Task LoadAsEPRAsync(XmlNS.XmlReader reader, CancellationToken cancellationToken)
{
using (var dictionaryReader = XmlNS.XmlDictionaryReader.CreateDictionaryReader(reader))
{
EndpointAddress epr = await AsyncHelper.RunAsync(() => EndpointAddress.ReadFrom(dictionaryReader), cancellationToken).ConfigureAwait(false);
MetadataExchangeResolver resolver = MetadataExchangeResolver.Create(epr, null, null, null);
IEnumerable <MetadataSection> resolvedMetadata = await resolver.ResolveMetadataAsync(cancellationToken).ConfigureAwait(false);
_metadataSections.AddRange(resolvedMetadata);
}
}
private static MetadataExchangeResolver CreateMetadataExchangeClient(EndpointAddress endpointAddress)
{
MetadataExchangeResolver metadataExchangeClient = null;
string scheme = endpointAddress.Uri.Scheme;
if (String.Compare(scheme, MetadataConstants.Uri.UriSchemeHttp, StringComparison.OrdinalIgnoreCase) == 0)
{
WSHttpBinding binding = (WSHttpBinding)MetadataExchangeBindings.CreateMexHttpBinding();
binding.MaxReceivedMessageSize = MaxRecievedMexMessageSize;
binding.ReaderQuotas.MaxNameTableCharCount = MaxNameTableCharCount;
binding.ReaderQuotas.MaxDepth = MaxDepth;
binding.ReaderQuotas.MaxBytesPerRead = MaxBytesPerRead;
metadataExchangeClient = new MetadataExchangeResolver(binding);
}
else if (String.Compare(scheme, MetadataConstants.Uri.UriSchemeHttps, StringComparison.OrdinalIgnoreCase) == 0)
{
WSHttpBinding binding = (WSHttpBinding)MetadataExchangeBindings.CreateMexHttpsBinding();
binding.MaxReceivedMessageSize = MaxRecievedMexMessageSize;
binding.ReaderQuotas.MaxNameTableCharCount = MaxNameTableCharCount;
binding.ReaderQuotas.MaxDepth = MaxDepth;
binding.ReaderQuotas.MaxBytesPerRead = MaxBytesPerRead;
metadataExchangeClient = new MetadataExchangeResolver(binding);
}
else if (String.Compare(scheme, MetadataConstants.Uri.UriSchemeNetTcp, StringComparison.OrdinalIgnoreCase) == 0)
{
CustomBinding binding = (CustomBinding)MetadataExchangeBindings.CreateMexTcpBinding();
binding.Elements.Find <TcpTransportBindingElement>().MaxReceivedMessageSize = MaxRecievedMexMessageSize;
metadataExchangeClient = new MetadataExchangeResolver(binding);
}
else if (String.Compare(scheme, MetadataConstants.Uri.UriSchemeNetPipe, StringComparison.OrdinalIgnoreCase) == 0)
{
CustomBinding binding = (CustomBinding)MetadataExchangeBindings.CreateMexNamedPipeBinding();
binding.Elements.Find <NamedPipeTransportBindingElement>().MaxReceivedMessageSize = MaxRecievedMexMessageSize;
metadataExchangeClient = new MetadataExchangeResolver(binding);
}
else
{
throw new MetadataExchangeException(MetadataResources.ErrCannotCreateAMetadataExchangeClientFormat, endpointAddress.Uri.OriginalString, scheme);
}
return(metadataExchangeClient);
}
private async Task LoadAsync(string uri, string baseUrl, string basePath, CancellationToken cancellationToken)
{
if (CanLoad(uri, baseUrl, basePath, out Uri serviceUri))
{
if (serviceUri.Scheme == MetadataConstants.Uri.UriSchemeFile)
{
var fileInfoList = MetadataFileNameManager.ResolveFiles(serviceUri.LocalPath);
foreach (var fileInfo in fileInfoList)
{
if (!IsUriProcessed(fileInfo.FullName))
{
using (var fileStream = fileInfo.Open(FileMode.Open, FileAccess.Read, FileShare.Read))
{
await LoadFromStreamAsync(fileStream, fileInfo.FullName, fileInfo.DirectoryName, cancellationToken).ConfigureAwait(false);
}
}
}
}
else
{
if (!IsUriProcessed(serviceUri.AbsoluteUri))
{
// Clone providers as they may be in use for a different URI.
MetadataExchangeResolver metadataExchangeResolver = MetadataExchangeResolver.Create(
new EndpointAddress(serviceUri),
_httpCredentialsProvider?.Clone() as IHttpCredentialsProvider,
_clientCertificatesProvider?.Clone() as IClientCertificateProvider,
_serverCertificateValidationProvider?.Clone() as IServerCertificateValidationProvider);
var metadataSections = await metadataExchangeResolver.ResolveMetadataAsync(cancellationToken).ConfigureAwait(false);
_metadataSections.AddRange(metadataSections);
}
}
}
else
{
throw new MetadataExchangeException(MetadataResources.ErrInvalidUriFormat, uri);
}
}
public static MetadataExchangeResolver Create(
EndpointAddress endpointAddress,
IHttpCredentialsProvider userCredentialsProvider,
IClientCertificateProvider clientCertificatesProvider,
IServerCertificateValidationProvider serverCertificateValidationProvider)
{
if (endpointAddress == null)
{
throw new ArgumentNullException(nameof(endpointAddress));
}
MetadataExchangeResolver resolver = CreateMetadataExchangeClient(endpointAddress);
resolver.EndpointAddress = endpointAddress;
resolver.HttpCredentialsProvider = userCredentialsProvider;
resolver.ClientCertificatesProvider = clientCertificatesProvider;
resolver.ServerCertificateValidationProvider = serverCertificateValidationProvider;
resolver.OperationTimeout = TimeSpan.MaxValue;
resolver.ResolveMetadataReferences = true;
resolver.MaximumResolvedReferences = MaximumResolvedReferencesDefault;
resolver.HttpCredentials = System.Net.CredentialCache.DefaultCredentials;
return(resolver);
}