//----------------------------------------------------------------------------- // Copyright (c) Microsoft Corporation. All rights reserved. //----------------------------------------------------------------------------- namespace System.ServiceModel.Channels { using System.Xml; using System.ServiceModel; using System.ServiceModel.Description; using System.ServiceModel.Security; using System.Xml.Schema; using System.Collections.ObjectModel; using System.Collections.Generic; using WsdlNS = System.Web.Services.Description; // implemented by Indigo Transports interface ITransportPolicyImport { void ImportPolicy(MetadataImporter importer, PolicyConversionContext policyContext); } public class TransportBindingElementImporter : IWsdlImportExtension, IPolicyImportExtension { void IWsdlImportExtension.BeforeImport(WsdlNS.ServiceDescriptionCollection wsdlDocuments, XmlSchemaSet xmlSchemas, ICollection policy) { WsdlImporter.SoapInPolicyWorkaroundHelper.InsertAdHocTransportPolicy(wsdlDocuments); } void IWsdlImportExtension.ImportContract(WsdlImporter importer, WsdlContractConversionContext context) { } void IWsdlImportExtension.ImportEndpoint(WsdlImporter importer, WsdlEndpointConversionContext context) { if (context == null) { throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("context"); } #pragma warning suppress 56506 // [....], these properties cannot be null in this context if (context.Endpoint.Binding == null) { throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("context.Endpoint.Binding"); } #pragma warning suppress 56506 // [....], CustomBinding.Elements never be null TransportBindingElement transportBindingElement = GetBindingElements(context).Find(); bool transportHandledExternaly = (transportBindingElement != null) && !StateHelper.IsRegisteredTransportBindingElement(importer, context); if (transportHandledExternaly) return; #pragma warning suppress 56506 // [....], these properties cannot be null in this context WsdlNS.SoapBinding soapBinding = (WsdlNS.SoapBinding)context.WsdlBinding.Extensions.Find(typeof(WsdlNS.SoapBinding)); if (soapBinding != null && transportBindingElement == null) { CreateLegacyTransportBindingElement(importer, soapBinding, context); } // Try to import WS-Addressing address from the port if (context.WsdlPort != null) { ImportAddress(context, transportBindingElement); } } static BindingElementCollection GetBindingElements(WsdlEndpointConversionContext context) { Binding binding = context.Endpoint.Binding; BindingElementCollection elements = binding is CustomBinding ? ((CustomBinding)binding).Elements : binding.CreateBindingElements(); return elements; } static CustomBinding ConvertToCustomBinding(WsdlEndpointConversionContext context) { CustomBinding customBinding = context.Endpoint.Binding as CustomBinding; if (customBinding == null) { customBinding = new CustomBinding(context.Endpoint.Binding); context.Endpoint.Binding = customBinding; } return customBinding; } static void ImportAddress(WsdlEndpointConversionContext context, TransportBindingElement transportBindingElement) { EndpointAddress address = context.Endpoint.Address = WsdlImporter.WSAddressingHelper.ImportAddress(context.WsdlPort); if (address != null) { context.Endpoint.Address = address; // Replace the http BE with https BE only if the uri scheme is https and the transport binding element is a HttpTransportBindingElement but not HttpsTransportBindingElement if (address.Uri.Scheme == Uri.UriSchemeHttps && transportBindingElement is HttpTransportBindingElement && !(transportBindingElement is HttpsTransportBindingElement)) { BindingElementCollection elements = ConvertToCustomBinding(context).Elements; elements.Remove(transportBindingElement); elements.Add(CreateHttpsFromHttp(transportBindingElement as HttpTransportBindingElement)); } } } static void CreateLegacyTransportBindingElement(WsdlImporter importer, WsdlNS.SoapBinding soapBinding, WsdlEndpointConversionContext context) { // We create a transportBindingElement based on the SoapBinding's Transport TransportBindingElement transportBindingElement = CreateTransportBindingElements(soapBinding.Transport, null); if (transportBindingElement != null) { ConvertToCustomBinding(context).Elements.Add(transportBindingElement); StateHelper.RegisterTransportBindingElement(importer, context); } } static HttpsTransportBindingElement CreateHttpsFromHttp(HttpTransportBindingElement http) { if (http == null) return new HttpsTransportBindingElement(); HttpsTransportBindingElement https = HttpsTransportBindingElement.CreateFromHttpBindingElement(http); return https; } void IPolicyImportExtension.ImportPolicy(MetadataImporter importer, PolicyConversionContext policyContext) { XmlQualifiedName wsdlBindingQName; string transportUri = WsdlImporter.SoapInPolicyWorkaroundHelper.FindAdHocTransportPolicy(policyContext, out wsdlBindingQName); if (transportUri != null && !policyContext.BindingElements.Contains(typeof(TransportBindingElement))) { TransportBindingElement transportBindingElement = CreateTransportBindingElements(transportUri, policyContext); if (transportBindingElement != null) { ITransportPolicyImport transportPolicyImport = transportBindingElement as ITransportPolicyImport; if (transportPolicyImport != null) transportPolicyImport.ImportPolicy(importer, policyContext); policyContext.BindingElements.Add(transportBindingElement); StateHelper.RegisterTransportBindingElement(importer, wsdlBindingQName); } } } static TransportBindingElement CreateTransportBindingElements(string transportUri, PolicyConversionContext policyContext) { TransportBindingElement transportBindingElement = null; // Try and Create TransportBindingElement switch (transportUri) { case TransportPolicyConstants.HttpTransportUri: transportBindingElement = GetHttpTransportBindingElement(policyContext); break; case TransportPolicyConstants.TcpTransportUri: transportBindingElement = new TcpTransportBindingElement(); break; case TransportPolicyConstants.NamedPipeTransportUri: transportBindingElement = new NamedPipeTransportBindingElement(); break; case TransportPolicyConstants.MsmqTransportUri: transportBindingElement = new MsmqTransportBindingElement(); break; case TransportPolicyConstants.PeerTransportUri: #pragma warning disable 0618 transportBindingElement = new PeerTransportBindingElement(); #pragma warning restore 0618 break; case TransportPolicyConstants.WebSocketTransportUri: HttpTransportBindingElement httpTransport = GetHttpTransportBindingElement(policyContext); httpTransport.WebSocketSettings.TransportUsage = WebSocketTransportUsage.Always; httpTransport.WebSocketSettings.SubProtocol = WebSocketTransportSettings.SoapSubProtocol; transportBindingElement = httpTransport; break; default: // There may be another registered converter that can handle this transport. break; } return transportBindingElement; } static HttpTransportBindingElement GetHttpTransportBindingElement(PolicyConversionContext policyContext) { if (policyContext != null) { WSSecurityPolicy sp = null; ICollection policyCollection = policyContext.GetBindingAssertions(); if (WSSecurityPolicy.TryGetSecurityPolicyDriver(policyCollection, out sp) && sp.ContainsWsspHttpsTokenAssertion(policyCollection)) { HttpsTransportBindingElement httpsBinding = new HttpsTransportBindingElement(); httpsBinding.MessageSecurityVersion = sp.GetSupportedMessageSecurityVersion(SecurityVersion.WSSecurity11); return httpsBinding; } } return new HttpTransportBindingElement(); } } internal static class StateHelper { readonly static object StateBagKey = new object(); static Dictionary GetGeneratedTransportBindingElements(MetadataImporter importer) { object retValue; if (!importer.State.TryGetValue(StateHelper.StateBagKey, out retValue)) { retValue = new Dictionary(); importer.State.Add(StateHelper.StateBagKey, retValue); } return (Dictionary)retValue; } internal static void RegisterTransportBindingElement(MetadataImporter importer, XmlQualifiedName wsdlBindingQName) { GetGeneratedTransportBindingElements(importer)[wsdlBindingQName] = wsdlBindingQName; } internal static void RegisterTransportBindingElement(MetadataImporter importer, WsdlEndpointConversionContext context) { XmlQualifiedName wsdlBindingQName = new XmlQualifiedName(context.WsdlBinding.Name, context.WsdlBinding.ServiceDescription.TargetNamespace); GetGeneratedTransportBindingElements(importer)[wsdlBindingQName] = wsdlBindingQName; } internal static bool IsRegisteredTransportBindingElement(WsdlImporter importer, WsdlEndpointConversionContext context) { XmlQualifiedName key = new XmlQualifiedName(context.WsdlBinding.Name, context.WsdlBinding.ServiceDescription.TargetNamespace); return GetGeneratedTransportBindingElements(importer).ContainsKey(key); } } static class TransportPolicyConstants { public const string BasicHttpAuthenticationName = "BasicAuthentication"; public const string CompositeDuplex = "CompositeDuplex"; public const string CompositeDuplexNamespace = "http://schemas.microsoft.com/net/2006/06/duplex"; public const string CompositeDuplexPrefix = "cdp"; public const string DigestHttpAuthenticationName = "DigestAuthentication"; public const string DotNetFramingNamespace = FramingEncodingString.NamespaceUri + "/policy"; public const string DotNetFramingPrefix = "msf"; public const string HttpTransportNamespace = "http://schemas.microsoft.com/ws/06/2004/policy/http"; public const string HttpTransportPrefix = "http"; public const string HttpTransportUri = "http://schemas.xmlsoap.org/soap/http"; public const string MsmqBestEffort = "MsmqBestEffort"; public const string MsmqSession = "MsmqSession"; public const string MsmqTransportNamespace = "http://schemas.microsoft.com/ws/06/2004/mspolicy/msmq"; public const string MsmqTransportPrefix = "msmq"; public const string MsmqTransportUri = "http://schemas.microsoft.com/soap/msmq"; public const string MsmqVolatile = "MsmqVolatile"; public const string MsmqAuthenticated = "Authenticated"; public const string MsmqWindowsDomain = "WindowsDomain"; public const string NamedPipeTransportUri = "http://schemas.microsoft.com/soap/named-pipe"; public const string NegotiateHttpAuthenticationName = "NegotiateAuthentication"; public const string NtlmHttpAuthenticationName = "NtlmAuthentication"; public const string PeerTransportUri = "http://schemas.microsoft.com/soap/peer"; public const string ProtectionLevelName = "ProtectionLevel"; public const string RequireClientCertificateName = "RequireClientCertificate"; public const string SslTransportSecurityName = "SslTransportSecurity"; public const string StreamedName = "Streamed"; public const string TcpTransportUri = "http://schemas.microsoft.com/soap/tcp"; public const string WebSocketPolicyPrefix = "mswsp"; public const string WebSocketPolicyNamespace = "http://schemas.microsoft.com/soap/websocket/policy"; public const string WebSocketTransportUri = "http://schemas.microsoft.com/soap/websocket"; public const string WebSocketEnabled = "WebSocketEnabled"; public const string WindowsTransportSecurityName = "WindowsTransportSecurity"; } }