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• WCF AuthenticationService in IIS7 Error

  - by germandb

  I have a WCF Server running on IIS 7 using default application pool, with SSL activate, the services is installed in a SBS Server 2008. I implement client application services with wcf and SQL 2005 for setting the access control in my application. The application run under windows vista and is make with WPF. In my developer machine the application and the WCF services run well, the IIS i'm use for the trials is the local IIS 7 and the database is the SQL Server 2005 database hosting in my server. I'm using Visual Studio Project Designer to enable and configure client application services. using https://localhost/WcfServidorFundacion. When i'm change the authentication services location to https://WcfServices:5659/WcfServidorFundacion and recompile the application, the following error show up. Message: The web service returned the error status code: InternalServerError. Details of service failure: {"Message":" Error while processing your request ","StackTrace":"","ExceptionType":""} Stack Trace: en System.Net.HttpWebRequest.GetResponse() en System.Web.ClientServices.Providers.ProxyHelper.CreateWebRequestAndGetResponse(String serverUri, CookieContainer& cookies, String username, String connectionString, String connectionStringProvider, String[] paramNames, Object[] paramValues, Type returnType) InnerException: System.Net.WebException Message="Remote Server Error: (500) Interal Server Error." I can access the WCF service from the navigator using the url mentioned above and even make a webReference in my project. I make a capture of the response but I'cant post it because i don't have 10 reputation points I activate the error log in the IIS 7 server, and the result is a Warning in the ManagedPipilineHandler. I appreciate if any one can help me Errors & Warnings No.? Severity Event Module Name 132. view trace Warning -MODULE_SET_RESPONSE_ERROR_STATUS ModuleName ManagedPipelineHandler Notification 128 HttpStatus 500 HttpReason Internal Server Error HttpSubStatus 0 ErrorCode 0 ConfigExceptionInfo Notification EXECUTE_REQUEST_HANDLER ErrorCode La operación se ha completado correctamente. (0x0) Maybe this can help, is the web.config of my service <?xml version="1.0" encoding="utf-8"?> <!-- Nota: como alternativa para editar manualmente este archivo, puede utilizar la herramienta Administración de sitios web para configurar los valores de la aplicación. Utilice la opción Sitio Web->Configuración de Asp.Net en Visual Studio. Encontrará una lista completa de valores de configuración y comentarios en machine.config.comments, que se encuentra generalmente en \Windows\Microsoft.Net\Framework\v2.x\Config --> <configuration> <configSections> <sectionGroup name="system.web.extensions" type="System.Web.Configuration.SystemWebExtensionsSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"> <sectionGroup name="scripting" type="System.Web.Configuration.ScriptingSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"> <section name="scriptResourceHandler" type="System.Web.Configuration.ScriptingScriptResourceHandlerSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication" /> <sectionGroup name="webServices" type="System.Web.Configuration.ScriptingWebServicesSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"> <section name="jsonSerialization" type="System.Web.Configuration.ScriptingJsonSerializationSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="Everywhere" /> <section name="profileService" type="System.Web.Configuration.ScriptingProfileServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication" /> <section name="authenticationService" type="System.Web.Configuration.ScriptingAuthenticationServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication" /> <section name="roleService" type="System.Web.Configuration.ScriptingRoleServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication" /> </sectionGroup> </sectionGroup> </sectionGroup> </configSections> <appSettings /> <connectionStrings> <remove name="LocalMySqlServer" /> <remove name="LocalSqlServer" /> <add name="fundacionSelfAut" connectionString="Data Source=FUNDACIONSERVER/PRUEBAS;Initial Catalog=fundacion;User ID=wcfBaseDatos;Password=qwerty_2009;" providerName="System.Data.SqlClient" /> </connectionStrings> <system.web> <profile enabled="true" defaultProvider="SqlProfileProvider"> <providers> <clear /> <add name="SqlProfileProvider" type="System.Web.Profile.SqlProfileProvider" connectionStringName="fundacionSelfAut" applicationName="fundafe" /> </providers> <properties> <add name="FirstName" type="String" /> <add name="LastName" type="String" /> <add name="PhoneNumber" type="String" /> </properties> </profile> <roleManager enabled="true" defaultProvider="SqlRoleProvider"> <providers> <clear /> <add name="SqlRoleProvider" type="System.Web.Security.SqlRoleProvider" connectionStringName="fundacionSelfAut" applicationName="fundafe" /> </providers> </roleManager> <membership defaultProvider="SqlMembershipProvider"> <providers> <clear /> <add name="SqlMembershipProvider" type="System.Web.Security.SqlMembershipProvider" connectionStringName="fundacionSelfAut" applicationName="fundafe" enablePasswordRetrieval="false" enablePasswordReset="false" requiresQuestionAndAnswer="true" requiresUniqueEmail="true" passwordFormat="Hashed" /> </providers> </membership> <authentication mode="Forms" /> <compilation debug="true" strict="false" explicit="true"> <assemblies> <add assembly="System.Core, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" /> <add assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> </assemblies> </compilation> <!-- La sección <authentication> permite la configuración del modo de autenticación de seguridad utilizado por ASP.NET para identificar a un usuario entrante. --> <!-- La sección <customErrors> permite configurar las acciones que se deben llevar a cabo/cuando un error no controlado tiene lugar durante la ejecución de una solicitud. Específicamente, permite a los desarrolladores configurar páginas de error html que se mostrarán en lugar de un seguimiento de pila de errores. <customErrors mode="RemoteOnly" defaultRedirect="GenericErrorPage.htm"> <error statusCode="403" redirect="NoAccess.htm" /> <error statusCode="404" redirect="FileNotFound.htm" /> </customErrors> --> <pages> <controls> <add tagPrefix="asp" namespace="System.Web.UI" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> </controls> </pages> <httpHandlers> <remove verb="*" path="*.asmx" /> <add verb="*" path="*.asmx" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> <add verb="*" path="*_AppService.axd" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> <add verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" validate="false" /> </httpHandlers> <httpModules> <add name="ScriptModule" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> </httpModules> <sessionState timeout="40" /> </system.web> <system.codedom> <compilers> <compiler language="c#;cs;csharp" extension=".cs" warningLevel="4" type="Microsoft.CSharp.CSharpCodeProvider, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"> <providerOption name="CompilerVersion" value="v3.5" /> <providerOption name="WarnAsError" value="false" /> </compiler> </compilers> </system.codedom> <!-- La sección webServer del sistema es necesaria para ejecutar ASP.NET AJAX en Internet Information Services 7.0. Sin embargo, no es necesaria para la versión anterior de IIS. --> <system.webServer> <validation validateIntegratedModeConfiguration="false" /> <modules> <add name="ScriptModule" preCondition="integratedMode" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> </modules> <handlers> <remove name="WebServiceHandlerFactory-Integrated" /> <add name="ScriptHandlerFactory" verb="*" path="*.asmx" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> <add name="ScriptHandlerFactoryAppServices" verb="*" path="*_AppService.axd" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> <add name="ScriptResource" preCondition="integratedMode" verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> </handlers> <tracing> <traceFailedRequests> <add path="*"> <traceAreas> <add provider="ASP" verbosity="Verbose" /> <add provider="ASPNET" areas="Infrastructure,Module,Page,AppServices" verbosity="Verbose" /> <add provider="ISAPI Extension" verbosity="Verbose" /> <add provider="WWW Server" areas="Authentication,Security,Filter,StaticFile,CGI,Compression,Cache,RequestNotifications,Module" verbosity="Verbose" /> </traceAreas> <failureDefinitions statusCodes="401.3,500,403,404,405" /> </add> </traceFailedRequests> </tracing> <security> <authorization> <add accessType="Allow" users="germanbarbosa,informatica" /> </authorization> <authentication> <windowsAuthentication enabled="false" /> </authentication> </security> </system.webServer> <system.web.extensions> <scripting> <webServices> <authenticationService enabled="true" requireSSL="true" /> <profileService enabled="true" readAccessProperties="FirstName,LastName,PhoneNumber" /> <roleService enabled="true" /> </webServices> </scripting> </system.web.extensions> <system.serviceModel> <services> <!-- this enables the WCF AuthenticationService endpoint --> <service behaviorConfiguration="AppServiceBehaviors" name="System.Web.ApplicationServices.AuthenticationService"> <endpoint address="" binding="basicHttpBinding" bindingConfiguration="userHttps" bindingNamespace="http://asp.net/ApplicationServices/v200" contract="System.Web.ApplicationServices.AuthenticationService" /> </service> <!-- this enables the WCF RoleService endpoint --> <service behaviorConfiguration="AppServiceBehaviors" name="System.Web.ApplicationServices.RoleService"> <endpoint binding="basicHttpBinding" bindingConfiguration="userHttps" bindingNamespace="http://asp.net/ApplicationServices/v200" contract="System.Web.ApplicationServices.RoleService" /> </service> <!-- this enables the WCF ProfileService endpoint --> <service behaviorConfiguration="AppServiceBehaviors" name="System.Web.ApplicationServices.ProfileService"> <endpoint binding="basicHttpBinding" bindingNamespace="http://asp.net/ApplicationServices/v200" bindingConfiguration="userHttps" contract="System.Web.ApplicationServices.ProfileService" /> </service> </services> <bindings> <basicHttpBinding> <!-- Set up a binding that uses Username as the client credential type --> <binding name="userHttps"> <security mode="Transport"> </security> </binding> </basicHttpBinding> </bindings> <behaviors> <serviceBehaviors> <behavior name="AppServiceBehaviors"> <serviceMetadata httpGetEnabled="false" httpsGetEnabled="true" /> <serviceDebug includeExceptionDetailInFaults="true" /> <serviceAuthorization principalPermissionMode="UseAspNetRoles" roleProviderName="SqlRoleProvider" /> <serviceCredentials> <userNameAuthentication userNamePasswordValidationMode="MembershipProvider" membershipProviderName="SqlMembershipProvider" /> </serviceCredentials> </behavior> </serviceBehaviors> </behaviors> <serviceHostingEnvironment aspNetCompatibilityEnabled="true" /> </system.serviceModel> </configuration>

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• SharePoint web services not protected?

  - by Philipp Schmid

  Using WSS 3.0, we have noticed that while users can be restricted to access only certain sub-sites of a site collection through permission settings, the same doesn't seem to be true for web services, such as /_vti_bin/Lists.asmx! Here's our experimental setup: http://formal/test : 'test' site collection - site1 : first site in test site collection, user1 is member - site2 : second site in test site collection, user2 is member With this setup, using a web browser user2 can: - access http://formal/test/site2/Default.aspx - cannot access http://formal/test/site1/Default.aspx That's what is expected. To our surprise however, using the code below, user2 can retrieve the names of the lists in site1, something he should not have access to! Is that by (unfortunate) design, or is there a configuration setting we've missed that would prevent user2 from retrieving the names of lists in site1? Is this going to be different in SharePoint 2010? Here's the web service code used in the experiment: class Program { static readonly string _url ="http://formal/sites/research/site2/_vti_bin/Lists.asmx"; static readonly string _user = "user2"; static readonly string _password = "password"; static readonly string _domain = "DOMAIN"; static void Main(string[] args) { try { ListsSoapClient service = GetServiceClient(_url, _user, _password, _domain); var result = service.GetListCollection(); Console.WriteLine(result.Value); } catch (Exception ex) { Console.WriteLine(ex.ToString()); } } private static ListsSoapClient GetServiceClient(string url, string userName, string password, string domain) { BasicHttpBinding binding = new BasicHttpBinding(BasicHttpSecurityMode.TransportCredentialOnly); binding.Security.Transport.ClientCredentialType = HttpClientCredentialType.Ntlm; ListsSoapClient service = new ListsSoapClient(binding, new System.ServiceModel.EndpointAddress(url)); service.ClientCredentials.UserName.Password = password; service.ClientCredentials.UserName.UserName = (!string.IsNullOrEmpty(domain)) ? domain + "\\" + userName : userName; return service; } }

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• Sharepoint web services -- The HTTP request is unauthorized with client authentication scheme 'Ntlm'

  - by Pandincus

  I know there's a lot of questions on SO similar to this, but I couldn't find one for this particular issue. A couple of points, first: I have no control over our Sharepoint server. I cannot tweak any IIS settings. I believe our IIS server version is IIS 7.0. Our Sharepoint Server is anticipating requests via NTLM. Our Sharepoint Server is on the same domain as my client computer. I am using .NET Framework 3.5, Visual Studio 2008 I am trying to write a simple console app to manipulate Sharepoint data using Sharepoint Web Services. I have added the Service Reference, and the following is my app.config: <system.serviceModel> <bindings> <basicHttpBinding> <binding name="ListsSoap" closeTimeout="00:01:00" openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00" allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard" maxBufferSize="65536" maxBufferPoolSize="524288" maxReceivedMessageSize="65536" messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered" useDefaultWebProxy="true"> <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384" maxBytesPerRead="4096" maxNameTableCharCount="16384" /> <security mode="Transport"> <transport clientCredentialType="Ntlm" proxyCredentialType="Ntlm" /> </security> </binding> </basicHttpBinding> </bindings> <client> <endpoint address="https://subdomain.companysite.com/subsite/_vti_bin/Lists.asmx" binding="basicHttpBinding" bindingConfiguration="ListsSoap" contract="ServiceReference1.ListsSoap" name="ListsSoap" /> </client> </system.serviceModel> This is my code: static void Main(string[] args) { using (var client = new ListsSoapClient()) { client.ClientCredentials.Windows.ClientCredential = new NetworkCredential("username", "password", "domain"); client.GetListCollection(); } } When I call GetListCollection(), the following MessageSecurityException gets thrown: The HTTP request is unauthorized with client authentication scheme 'Ntlm'. The authentication header received from the server was 'NTLM'. With an inner WebException: "The remote server returned an error: (401) Unauthorized." I've tried various bindings and various code tweaks to try to authenticate properly, but to no avail. I'll list those below. I've tried the following steps: Using a native Win32 Impersonator before creating the client using (new Impersonator.Impersonator("username", "password", "domain")) using (var client = new ListsSoapClient()) { client.ClientCredentials.Windows.ClientCredential = new NetworkCredential("dpincas", "password", "domain"); client.GetListCollection(); } This produced the same error message. Setting TokenImpersonationLevel for my client credentials using (var client = new ListsSoapClient()) { client.ClientCredentials.Windows.AllowedImpersonationLevel = TokenImpersonationLevel.Impersonation; client.GetListCollection(); } This produced the same error message. Using security mode=TransportCredentialOnly <security mode="TransportCredentialOnly"> <transport clientCredentialType="Ntlm" /> </security> This resulted in a different error message: The provided URI scheme 'https' is invalid; expected 'http'. Parameter name: via However, I need to use https, so I cannot change my URI scheme. I've tried some other combinations that I can't remember, but I'll post them when I do. I'm really at wits end here. I see a lot of links on Google that say "switch to Kerberos", but my server seems to only be accepting NTLM, not "Negotiate" (as it would say if it was looking for Kerberos), so that is unfortunately not an option. Any help out there, folks?

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• How can I generate a client proxy for a WCF service with an HTTPS endpoint?

  - by ng5000

  Might be the same issue as this previuos question: WCF Proxy but not sure... I have an HTTPS service connfigured to use transport security and, I hope, Windows credentials. The service is only accessed internally (i.e. within the intranet). The configuration is as follows: <configuration> <system.serviceModel> <services> <service name="WCFTest.CalculatorService" behaviorConfiguration="WCFTest.CalculatorBehavior"> <host> <baseAddresses> <add baseAddress = "https://localhost:8000/WCFTest/CalculatorService/" /> </baseAddresses> </host> <endpoint address ="basicHttpEP" binding="basicHttpBinding" contract="WCFTest.ICalculatorService" bindingConfiguration="basicHttpBindingConfig"/> <endpoint address="mex" binding="mexHttpsBinding" contract="IMetadataExchange"/> </service> </services> <bindings> <basicHttpBinding> <binding name="basicHttpBindingConfig"> <security mode="Transport"> <transport clientCredentialType = "Windows"/> </security> </binding> </basicHttpBinding> </bindings> <behaviors> <serviceBehaviors> <behavior name="WCFTest.CalculatorBehavior"> <serviceAuthorization impersonateCallerForAllOperations="false" principalPermissionMode="UseWindowsGroups" /> <serviceCredentials > <windowsAuthentication allowAnonymousLogons="false" includeWindowsGroups="true" /> </serviceCredentials> <serviceMetadata httpsGetEnabled="True"/> <serviceDebug includeExceptionDetailInFaults="False" /> </behavior> </serviceBehaviors> </behaviors> </system.serviceModel> </configuration> When I run the service I can't see the service in IE. I get a "this page can not be displayed" error. If I try and create a client in VS2008 via the "add service reference" wizard I get this error: There was an error downloading 'https://localhost:8000/WCFTest/CalculatorService/'. There was an error downloading 'https://localhost:8000/WCFTest/CalculatorService/'. The underlying connection was closed: An unexpected error occurred on a send. Authentication failed because the remote party has closed the transport stream. Metadata contains a reference that cannot be resolved: 'https://localhost:8000/WCFTest/CalculatorService/'. An error occurred while making the HTTP request to https://localhost:8000/WCFTest/CalculatorService/. This could be due to the fact that the server certificate is not configured properly with HTTP.SYS in the HTTPS case. This could also be caused by a mismatch of the security binding between the client and the server. The underlying connection was closed: An unexpected error occurred on a send. Authentication failed because the remote party has closed the transport stream. If the service is defined in the current solution, try building the solution and adding the service reference again. I think I'm missing some fundamental basics here. Do I need to set up some certificates? Or should it all just work as it seems to do when I use NetTcpBinding? Thanks

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• IErrorHandler doesn't seem to be handling my errors in WCF .. any ideas?

  - by John Nicholas

  Have been readign around on IErrorHandler and want to go the config route. so, I have read the following in an attempt to implement it. MSDN Keyvan Nayyeri blog about the type defintion Rory Primrose Blog I have got it to compile and from the various errors i have fixed it seems like WCF is actually loading the error handler. My problem is that the exception that i am throwing to handle in the error handler doesn;t get the exception passed to it. My service implementation simply calls a method on another class that throws ArgumentOutOfRangeException - however this exception never gets handled by the handler. My web.config <system.serviceModel> <bindings> <basicHttpBinding> <binding name="basic"> <security mode="None" /> </binding> </basicHttpBinding> </bindings> <extensions> <behaviorExtensions> <add name="customHttpBehavior" type="ErrorHandlerTest.ErrorHandlerElement, ErrorHandlerTest, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" /> </behaviorExtensions> </extensions> <behaviors> <serviceBehaviors> <behavior name="exceptionHandlerBehaviour"> <serviceMetadata httpGetEnabled="true"/> <!-- To receive exception details in faults for debugging purposes, set the value below to true. Set to false before deployment to avoid disclosing exception information --> <serviceDebug includeExceptionDetailInFaults="true"/> <customHttpBehavior /> </behavior> </serviceBehaviors> </behaviors> <services> <service behaviorConfiguration="exceptionHandlerBehaviour" name="ErrorHandlerTest.Service1"> <endpoint binding="basicHttpBinding" bindingConfiguration="basic" contract="ErrorHandlerTest.IService1" /> </service> </services> Service Contract [ServiceContract] public interface IService1 { [OperationContract] [FaultContract(typeof(GeneralInternalFault))] string GetData(int value); } The ErrorHandler class public class ErrorHandler : IErrorHandler , IServiceBehavior { public bool HandleError(Exception error) { Console.WriteLine("caught exception {0}:",error.Message ); return true; } public void ProvideFault(Exception error, MessageVersion version, ref Message fault) { if (fault!=null ) { if (error is ArgumentOutOfRangeException ) { var fe = new FaultException<GeneralInternalFault>(new GeneralInternalFault("general internal fault.")); MessageFault mf = fe.CreateMessageFault(); fault = Message.CreateMessage(version, mf, fe.Action); } else { var fe = new FaultException<GeneralInternalFault>(new GeneralInternalFault(" the other general internal fault.")); MessageFault mf = fe.CreateMessageFault(); fault = Message.CreateMessage(version, mf, fe.Action); } } } public void AddBindingParameters(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase, System.Collections.ObjectModel.Collection<ServiceEndpoint> endpoints, BindingParameterCollection bindingParameters) { } public void ApplyDispatchBehavior(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase) { IErrorHandler errorHandler = new ErrorHandler(); foreach (ChannelDispatcherBase channelDispatcherBase in serviceHostBase.ChannelDispatchers) { ChannelDispatcher channelDispatcher = channelDispatcherBase as ChannelDispatcher; if (channelDispatcher != null) { channelDispatcher.ErrorHandlers.Add(errorHandler); } } } public void Validate(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase) { } } And the Behaviour Extension Element public class ErrorHandlerElement : BehaviorExtensionElement { protected override object CreateBehavior() { return new ErrorHandler(); } public override Type BehaviorType { get { return typeof(ErrorHandler); } } }

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• WCF via SSL connectivity problems

  - by Brett Widmeier

  Hello, I am hosting a WCF service from inside a Windows service using WAS. When I set the service to listen on 127.0.0.1, I have connectivity from my local machine as well as from my network. However, when I set it to listen on my outbound interface port 443, I can no longer even see the wsdl by connecting with a browser. Strangely, I can connect to the service by using telnet. The cert I am using was generated for my interface by a CA, and I have successfully used this exact cert with this service before. When checking the application log, I see that the service starts without error and is listening on the correct interface. From this information, it seems to me that the config file is in a valid state, but somehow misconfigured for what I want. I have, however, previously deployed this same setup on other sites using this config file. In case it is helpful, below is my config file. Any thoughts? <!--<system.diagnostics> <sources> <source name="System.ServiceModel" switchValue="Warning, ActivityTracing" propagateActivity="true"> <listeners> <add type="System.Diagnostics.DefaultTraceListener" name="Default"> <filter type="" /> </add> <add name="ServiceModelTraceListener"> <filter type="" /> </add> </listeners> </source> </sources> <sharedListeners> <add initializeData="app_tracelog.svclog" type="System.Diagnostics.XmlWriterTraceListener, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" name="ServiceModelTraceListener" traceOutputOptions="Timestamp"> <filter type="" /> </add> </sharedListeners> </system.diagnostics>--> <appSettings/> <connectionStrings/> <system.serviceModel> <!--<diagnostics> <messageLogging logEntireMessage="true" logMalformedMessages="true" logMessagesAtServiceLevel="true" logMessagesAtTransportLevel="true" maxMessagesToLog ="1000" maxSizeOfMessageToLog="524288"/> </diagnostics>--> <bindings> <basicHttpBinding> <binding name="basicHttps"> <security mode="Transport"> <transport clientCredentialType="None"/> <message /> </security> </binding> </basicHttpBinding> </bindings> <services> <service behaviorConfiguration="ServiceBehavior" name="<fully qualified name of service>"> <endpoint address="" binding="basicHttpBinding" name="OrdersSoap" contract="<fully qualified name of contract>" bindingNamespace="http://emr.orders.com/WebServices" bindingConfiguration="basicHttps" /> <endpoint binding="mexHttpsBinding" address="mex" contract="IMetadataExchange" /> <host> <baseAddresses> <add baseAddress="https://<external IP>/<name of service>>/" /> </baseAddresses> </host> </service> </services> <behaviors> <serviceBehaviors> <behavior name="ServiceBehavior"> <serviceMetadata httpsGetEnabled="False"/> <serviceDebug includeExceptionDetailInFaults="True" /> <dataContractSerializer maxItemsInObjectGraph="2147483646"/> </behavior> </serviceBehaviors> </behaviors> </system.serviceModel>

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• Error message: "Two different contracts have the same ConfigurationName" when downloading wsdl from

  - by rwwilden

  I get the following error message when I try to use svcutil to generate a client proxy for a xamlx file that is hosted by AppFabric beta 2: Two different contracts have the same ConfigurationName I understand the message, however, I cannot find its cause or how to fix it. I'm following the 'Introduction to Workflow Services' lab from the VS2010RC training kit. The web application has two services: SubmitApplication.xamlx and EducationScreening.xamlx. I'm not sure why but both of them have four endpoints. If I take a look via the AppFabric Dashboard in IIS Mgmt Studio: basicHttpBinding (Contract: *) (Type: Application(Default)) netNamedPipeBinding (Contract: System.ServiceModel.Activities.IWorkflowInstanceManagement) (Type: System (workflowControlEndpoint)) netNamedPipeBinding (Contract: *) (Type: Application (Default)) serviceMetadataHttpGetBinding (Contract: serviceMetadataHttpGetContract) (Type: System (serviceMetadataEndpoint)) When taking a look at the SubmitApplication.xamlx in a browser, I see the following stacktrace: [InvalidOperationException: Two different contracts have the same ConfigurationName.] System.ServiceModel.Activities.WorkflowServiceHost.CreateDescription(IDictionary`2& implementedContracts) +361 System.ServiceModel.ServiceHostBase.InitializeDescription(UriSchemeKeyedCollection baseAddresses) +174 System.ServiceModel.Activities.WorkflowServiceHost.InitializeDescription(WorkflowService serviceDefinition, UriSchemeKeyedCollection baseAddresses) +82 System.ServiceModel.Activities.WorkflowServiceHost.InitializeFromConstructor(WorkflowService serviceDefinition, Uri[] baseAddresses) +206 System.ServiceModel.Activities.Activation.WorkflowServiceHostFactory.CreateWorkflowServiceHost(WorkflowService service, Uri[] baseAddresses) +43 System.ServiceModel.Activities.Activation.WorkflowServiceHostFactory.CreateServiceHost(String constructorString, Uri[] baseAddresses) +974 System.ServiceModel.HostingManager.CreateService(String normalizedVirtualPath) +1423 System.ServiceModel.HostingManager.ActivateService(String normalizedVirtualPath) +50 System.ServiceModel.HostingManager.EnsureServiceAvailable(String normalizedVirtualPath) +1132 [ServiceActivationException: The service '/HRApplicationServices/SubmitApplication.xamlx' cannot be activated due to an exception during compilation. The exception message is: Two different contracts have the same ConfigurationName..] System.Runtime.AsyncResult.End(IAsyncResult result) +889824 System.ServiceModel.Activation.HostedHttpRequestAsyncResult.End(IAsyncResult result) +179150 System.Web.AsyncEventExecutionStep.OnAsyncEventCompletion(IAsyncResult ar) +107 Can anyone tell me what I'm doing wrong? I haven't configured any of the bindings myself. The BasicHttpBinding is what you get by default in .NET 4 when hosting a service inside a web application. The other bindings are configured by AppFabric. I can't find their configuration anywhere. Kind regards, Ronald Wildenberg

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• Problem with WCF Streaming

  - by H4mm3rHead

  Hi, I was looking at this thread: http://stackoverflow.com/questions/1935040/how-to-handle-large-file-uploads-via-wcf I need to have a web service hosted at my provider where i need to upload and download files to. We are talking videos from 1Mb to 100Mb hence the streaming approach. I cant get it to work, i declared an Interface: [ServiceContract] public interface IFileTransferService { [OperationContract] void UploadFile(Stream stream); } and all is fine, i implement it like this: public string FileName = "test"; public void UploadFile(Stream stream) { try { FileStream outStream = File.Open(FileName, FileMode.Create, FileAccess.Write); const int bufferLength = 4096; byte[] buffer = new byte[bufferLength]; int count = 0; while((count = stream.Read(buffer, 0, bufferLength)) > 0) { //progress outStream.Write(buffer, 0, count); } outStream.Close(); stream.Close(); //saved } catch(Exception ex) { throw new Exception("error: "+ex.Message); } } Still no problem, its published to my webserver out on the interweb. So far so good. Now i make a reference to it and will pass it a FileStream, but the argument is now a byte[] - why is that and how do i get it the proper way for streaming? Edit My binding look like this: <bindings> <basicHttpBinding> <binding name="StreamingFileTransferServicesBinding" transferMode="StreamedRequest" maxBufferSize="65536" maxReceivedMessageSize="204003200" /> </basicHttpBinding> </bindings> I can consume it without problems, and get no errors - other than my input parameter has changed from a stream to a byte[]

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• WCF Streaming not working at server

  - by Radhi

  hi, i have used WCF service to transfer large files in chunks to the server for that i have reference this article http://kjellsj.blogspot.com/2007/02/wcf-streaming-upload-files-over-http.html i have configured my application on IIS on my machine. its work fine here. it allows upto 64mb file upload but when we have published the site. it allows only maximum 30Mb file if i try to upload more than that i got error 404 - resource not found. here is the binding config i have used. <basicHttpBinding> <!-- buffer: 64KB; max size: 64MB --> <binding name="FileTransferServicesBinding" closeTimeout="00:01:00" openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00" transferMode="Streamed" messageEncoding="Mtom" maxBufferSize="65536" maxReceivedMessageSize="67108864"> <security mode="None"> <transport clientCredentialType="None"/> </security> </binding> </basicHttpBinding> please suggest me where i am missing anything. and if required more code please let me know -thanks in advance

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• WCF, ASMX Basic HTTP binding and IIS

  - by Brennan Mann

  Hello, I have been doing a lot of work with WCF "self" hosted applications. I recently was requested to write a web service where the calling client was a Linux based program named "WGET". I would like to use WCF instead of a traditional ASMX web service. The web service is returning a standard XML response. I am not sure of the underlining details between the two technologies but I know WCF is the proper route. I created a WCF service to be hosted in IIS ( using basicHttpBinding). 1.) Did classic ASMX web services ( standard HTTP POST/GET) use SOAP to return responses? I created an class from XSD for the web service response. What is really going on behind the scenes? Is there just special XML HTTP headers that know how to handle to response? Is the response not wrapped in SOAP? The traditional ASMX web service worked perfectly with the class I generated using the .Net "XSD" program. 2.) I want to use WCF for this service. Will using basicHttpBinding work? As I have read, that is the correct binding to use for ASMX clients. Does this use SOAP, standard HTTP headers, or something else? 3.) This is a dumb question because I have not done a lot of web service programming. I noticed on the ASMX default landing page there were examples for responses and code to invoke the functionality. When I create the same service using WCF, I had to create a client application to perform these tasks. Is there a way to expose the WCF endpoint like a classic ASMX service or is the WSDL the only route? As always, I really appreciate the feedback. Thanks, Brennan

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• WCF 3.5 Service and multiple http bindings

  - by mortenvpdk

  Hi I can't get my WCF service to work with more than one http binding. In IIS 7 I have to bindings http:/service and http:/service.test both at port 80 In my web.config I have added the baseAddressPrefixFilters but I can't add more than one <serviceHostingEnvironment> <baseAddressPrefixFilters> <add prefix="http://service"/> <add prefix="http://service.test"/> </baseAddressPrefixFilters> </serviceHostingEnvironment> This gives almost the same error "This collection already contains an address with scheme http. There can be at most one address per scheme in this collection. " as if no filers were specified at all (This collection already contains an address with scheme http. There can be at most one address per scheme in this collection. Parameter name: item) If I add only one filter then the service works but only responds on the added filter address. I've also tried with specifing multiple endpoints like (and only one filter): <endpoint address="http://service.test" binding="basicHttpBinding" bindingConfiguration="" contract="IService" /> <endpoint address="http://service" binding="basicHttpBinding" bindingConfiguration="" contract="IService" /> Then still only the address also specified in the filter works and the other returns this error: Server Error in Application "ISPSERVICE" HTTP Error 400.0 - Bad Request Regards Morten

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• Trying to get WCF client to work with wss 1.0 username token security

  - by darius murauskas

  I am trying to use a WCF client to call a third party web service. The web Service usses username token authentication WSS-Security 1.0 Soap Message Security Here is a sample soap authentication header for what the web service expects <soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"> <soap:Header> <wsse:Security soap:mustUnderstand="1"> <wsse:UsernameToken namespaces> <wsse:Username>username</wsse:Username> <wsse:Password Type="type info">password</wsse:Password> <wsse:Nonce>nonce</wsse:Nonce> <wsu:Created>date created</wsu:Created> </wsse:UsernameToken> <wsse:Security> </soap:Header> <soap:Body> <WebServiceMethodName xmlns="Web Service Namespace" /> I configured the client to the following way <basicHttpBinding> <binding name="Binding1"> <security mode="TransportWithMessageCredential"> <transport clientCredentialType="Basic"/> </security> </basicHttpBinding> but recieved an error that stating that the nonce and datecreated attributes were missing in the header. Does anyone know how to configure a WCF client to work with WSS-Security 1.0 Soap Message Security username token authentication?

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• What is the WCF equivalent?

  - by klausbyskov

  I am trying to port some code that is based on WSE3.0 to WCF. Basically, the old code has the following configuration: <microsoft.web.services3> <diagnostics> <trace enabled="true" input="InputTrace.webinfo" output="OutputTrace.webinfo" /> </diagnostics> <tokenIssuer> <statefulSecurityContextToken enabled="false" /> </tokenIssuer> </microsoft.web.services3> When calling the same service through my "Service Reference" I get this error: Request does not contain required Security header My binding looks like this: <basicHttpBinding> <binding name="LegalUnitGetBinding" closeTimeout="00:01:00" openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00" allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard" maxBufferSize="65536" maxBufferPoolSize="524288" maxReceivedMessageSize="65536" messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered" useDefaultWebProxy="true"> <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384" maxBytesPerRead="4096" maxNameTableCharCount="16384" /> <security mode="Transport"> </security> </binding> </basicHttpBinding> From what I have understood, the service I'm calling only requires an SSL connection, since it receives a username and password as part of a request parameter. Any help or suggestions would be greatly appreciated.

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• IIS6 configuration for WCF/Silverlight

  - by Grayson Mitchell

  I am trying the simple senario of running a WCF service to return Active directory information on a user. (http://rouslan.com/2009/03/20-steps-to-get-together-windows-authentication-silverlight-and-wcf-service/) using Silverlight 4 & .net 4 However, I am being driven insane by trying to set this up in IIS. Currently I have my solution working in VS, but when I try to run the service in ISS a debug window tries to open... (and I can't get rid of it, is is complaining about the WCF call). <basicHttpBinding> <binding name="winAuthBasicHttpBinding"> <security mode="TransportCredentialOnly"> <transport clientCredentialType="Ntlm"/> </security> </binding> </basicHttpBinding> The Insanity: I have got the IIS to successfully call a WCF service (but can't reproduce), I have created 5 projects to try and get this working, but in my 5th I can't even browse the site (says it can't download silverlight application, but mime type are setup). My next step is to install Server2008 on a test machine and try IIS7... as all the various walkthrough's I have found just dont seem to work in IIS6.

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• WCF identity when moving from dev to prod. environment

  - by Anders Abel

  I have a web service developed with WCF. In the development environment the endpoint has the following identity section under the endpoint configuration. <identity> <dns value="myservice.devdomain.local" /> </identity> myservice.devdomain.local is the dns name used to reach the development version of the service. The binding used is: <basicHttpBinding> <binding name ="myBinding"> <security mode ="TransportCredentialOnly"> <transport clientCredentialType="Windows"/> </security> </binding> </basicHttpBinding> I am about to put this into production. The binding will be the same, but the address will be a new production address myservice.proddomain.local. I have planned to change the dns value in the configuration to myservice.proddomain.local in the production environment. However this MSDN article on WCF Identity makes me worried about the impact on the clients when I change the identity. There are two clients - one .NET and one Java using this service. Both of those have been developed against the dev instance of the service. The idea is to just reconfigure the endpoint used by the clients, without reloading the WSDL. But if the identity is somehow part of the WSDL and the identity changes when deploying to prod that might not work. Will the new identity in the prod version cause issues for the clients that were developed using the dev wsdl? Do the Java and the .NET clients handle this differently?

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• How to disable auto-generated WCF configuration

  - by user351025

  Every time my program runs vs adds the default configuration to my app.config file. At that run it works fine, but at the next run it actually tries to read the config. The problem is that the default configuration has errors, it adds the attribute "Address", but attritbutes are not allowed to have capitals so it throws an exception. This means I have to remove the bad section every run! I've tried to configure the .config but it gives errors. Here is the code that I use to host the server: private static System.Threading.AutoResetEvent stopFlag = new System.Threading.AutoResetEvent(false); ServiceHost host = new ServiceHost(typeof(Service), new Uri("http://localhost:8000")); host.AddServiceEndpoint(typeof(IService), new BasicHttpBinding(), "ChessServer"); host.Open(); stopFlag.WaitOne(); host.Close(); Here is the client code that calls the server: ChannelFactory<IChessServer> scf; scf = new ChannelFactory<IService> (new BasicHttpBinding(), "http://localhost:8000"); IService service = scf.CreateChannel(); Thanks for any help.

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• Amazon API ItemSearch returns (400) Bad Request.

  - by BuzzBubba

  I'm using a simple example from Amazon documentation for ItemSearch and I get a strange error: "The remote server returned an unexpected response: (400) Bad Request." This is the code: public static void Main() { //Remember to create an instance of the amazon service, including you Access ID. AWSECommerceServicePortTypeClient service = new AWSECommerceServicePortTypeClient(new BasicHttpBinding(), new EndpointAddress( "http://webservices.amazon.com/onca/soap?Service=AWSECommerceService")); AWSECommerceServicePortTypeClient client = new AWSECommerceServicePortTypeClient( new BasicHttpBinding(), new EndpointAddress("http://webservices.amazon.com/onca/soap?Service=AWSECommerceService")); // prepare an ItemSearch request ItemSearchRequest request = new ItemSearchRequest(); request.SearchIndex = "Books"; request.Title = "Harry+Potter"; request.ResponseGroup = new string[] { "Small" }; ItemSearch itemSearch = new ItemSearch(); itemSearch.Request = new ItemSearchRequest[] { request }; itemSearch.AWSAccessKeyId = accessKeyId; // issue the ItemSearch request try { ItemSearchResponse response = client.ItemSearch(itemSearch); // write out the results foreach (var item in response.Items[0].Item) { Console.WriteLine(item.ItemAttributes.Title); } } catch(Exception e) { Console.ForegroundColor = ConsoleColor.Red; Console.WriteLine(e.Message); Console.ForegroundColor = ConsoleColor.White; Console.WriteLine("Press any key to quit..."); Clipboard.SetText(e.Message); } Console.ReadKey(); What is wrong?

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• silverlight 3: long running wcf call triggers 401.1 (access denied)

  - by sympatric greg

  I have a wcf service consumed by a silverlight 3 control. The Silverlight client uses a basicHttpBindinging that is constructed at runtime from the control's initialization parameters like this: public static T GetServiceClient<T>(string serviceURL) { BasicHttpBinding binding = new BasicHttpBinding(Application.Current.Host.Source.Scheme.Equals("https", StringComparison.InvariantCultureIgnoreCase) ? BasicHttpSecurityMode.Transport : BasicHttpSecurityMode.None); binding.MaxReceivedMessageSize = int.MaxValue; binding.MaxBufferSize = int.MaxValue; binding.Security.Mode = BasicHttpSecurityMode.TransportCredentialOnly; return (T)Activator.CreateInstance(typeof(T), new object[] { binding, new EndpointAddress(serviceURL)}); } The Service implements windows security. Calls were returning as expected until the result set increased to several thousand rows at which time HTTP 401.1 errors were received. The Service's HttpBinding defines closeTime, openTimeout, receiveTimeout and sendTimeOut of 10 minutes. If I limit the size of the resultset the call suceeds. Additional Observations from Fiddler: When Method2 is modified to return a smaller resultset (and avoid the problem), control initialization consists of 4 calls: Service1/Method1 -- result:401 Service1/Method1 -- result:401 (this time header includes element "Authorization: Negotiate TlRMTV..." Service1/Method1 -- result:200 Service1/Method2 -- result:200 (1.25 seconds) When Method2 is configured to return the larger resultset we get: Service1/Method1 -- result:401 Service1/Method1 -- result:401 (this time header includes element "Authorization: Negotiate TlRMTV..." Service1/Method1 -- result:200 Service1/Method2 -- result:401.1 (7.5 seconds) Service1/Method2 -- result:401.1 (15ms) Service1/Method2 -- result:401.1 (7.5 seconds)

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• Fun with "The remote server returned an error: NotFound" - Silverlight4 Out of Browser

  - by Scott Silvi

  Hey all - I'm running SL4 on VS2010. I've got an app that authenticates via a web service to SPROC in my db. Unfortunately this is not WCF/WCF RIA, as I'm inheriting the DB/services from my client. This works perfectly inside of a browser. I'm attempting to move this OOB, and it's at this point that my authentication fails. Here's the steps I took... 1) SL App Properties Enable running app Out of Browser 2) SL App Properties Out of Browser Settings Require elevated trust when running OOB If i set a breakpoint on my logon button click, I see the service call is being made. However, if I step through it (or set a breakpoint on the actual logon web service), the code never gets that far. Here's the block it fails on: public LogonSVC.LogonResponse EndLogon(System.IAsyncResult result) { object[] _args = new object[0]; LogonSVC.LogonResponse _result = ((LogonSVC.LogonResponse)(base.EndInvoke("Logon", _args, result))); return _result; } I know using Elevated Trust means the crossdomain.xml isn't necessary. I dropped one in that allows everything, just to test, and that still fails. here's the code that calls the service: private void loginButton_Click(object sender, RoutedEventArgs e) { string Username = txtUserName.Text; string Password = txtPassword.Password; Uri iSilverlightServiceUriRelative = new Uri(App.Current.Host.Source, "../Services/Logon.asmx"); EndpointAddress iSilverlightServiceEndpoint = new EndpointAddress(iSilverlightServiceUriRelative); BasicHttpBinding iSilverlightServiceBinding = new BasicHttpBinding(BasicHttpSecurityMode.Transport);// Transport if it's HTTPS:// LogonService = new LogonSVC.LogonSoapClient(iSilverlightServiceBinding, iSilverlightServiceEndpoint); LogonService.LogonCompleted += new EventHandler<LogonSVC.LogonCompletedEventArgs>(LogonService_LogonCompleted); LogonService.LogonAsync(Username, Password); } My LogonService_LogonCompleted doesn't fire either (which makes sense, just a heads up). I don't know how to fiddler this, as this is running OOB with the site served via localhost/IIS. I know this works though in browser, so I'm curious what would break it OOB. Thank you, Scott

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• Amazone API ItemSearch returns (400) Bad Request.

  - by BuzzBubba

  I'm using a simple example from Amazon documentation for ItemSearch and I get a strange error: "The remote server returned an unexpected response: (400) Bad Request." This is the code: public static void Main() { //Remember to create an instance of the amazon service, including you Access ID. AWSECommerceServicePortTypeClient service = new AWSECommerceServicePortTypeClient(new BasicHttpBinding(), new EndpointAddress( "http://webservices.amazon.com/onca/soap?Service=AWSECommerceService")); AWSECommerceServicePortTypeClient client = new AWSECommerceServicePortTypeClient( new BasicHttpBinding(), new EndpointAddress("http://webservices.amazon.com/onca/soap?Service=AWSECommerceService")); // prepare an ItemSearch request ItemSearchRequest request = new ItemSearchRequest(); request.SearchIndex = "Books"; request.Title = "Harry+Potter"; request.ResponseGroup = new string[] { "Small" }; ItemSearch itemSearch = new ItemSearch(); itemSearch.Request = new ItemSearchRequest[] { request }; itemSearch.AWSAccessKeyId = accessKeyId; // issue the ItemSearch request try { ItemSearchResponse response = client.ItemSearch(itemSearch); // write out the results foreach (var item in response.Items[0].Item) { Console.WriteLine(item.ItemAttributes.Title); } } catch(Exception e) { Console.ForegroundColor = ConsoleColor.Red; Console.WriteLine(e.Message); Console.ForegroundColor = ConsoleColor.White; Console.WriteLine("Press any key to quit..."); Clipboard.SetText(e.Message); } Console.ReadKey(); What is wrong?

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• Client calls .asmx, Server exposes WCF endpoint

  - by Lucas B

  We have a client that has been configured to connect to an asmx service. We don't want to ask our customers to update their configuration, but we would like to upgrade our service to use WCF. Does anyone know if WCF supports this? If so, what would the configuration file look like? Our asmx service looks like this: <bindings> <binding name="ATransactionSoap" closeTimeout="00:01:00" openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00" allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard" maxBufferSize="65536" maxBufferPoolSize="524288" maxReceivedMessageSize="65536" messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered" useDefaultWebProxy="true"> <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384" maxBytesPerRead="4096" maxNameTableCharCount="16384" /> <security mode="None"> <transport clientCredentialType="None" proxyCredentialType="None" realm="" /> <message clientCredentialType="UserName" algorithmSuite="Default" /> </security> </binding> </basicHttpBinding> </bindings> <client> <endpoint address="http://.../atransaction.asmx" binding="basicHttpBinding" bindingConfiguration="ATransactionSoap" contract="ATransactionSoap" name="ATransactionSoap" />

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• changing WCF endpoint does not persist data.

  - by Vinay Pandey

  Hi All, I have an application that has reference of a WCF service on machine A, now on certain situation I want tu use similar service hosted on machine B. When I changed the endpoint using following:- EndpointAddress endpoint = new EndpointAddress(new Uri(ConfigurationManager.AppSettings["ServiceURLForMachineB"])); BasicHttpBinding binding = new BasicHttpBinding(); binding.SendTimeout = TimeSpan.FromMinutes(1); binding.OpenTimeout = TimeSpan.FromMinutes(1); binding.CloseTimeout = TimeSpan.FromMinutes(1); binding.ReceiveTimeout = TimeSpan.FromMinutes(10); binding.AllowCookies = false; binding.BypassProxyOnLocal = false; binding.HostNameComparisonMode = HostNameComparisonMode.StrongWildcard; binding.MessageEncoding = WSMessageEncoding.Mtom; binding.TextEncoding = System.Text.Encoding.UTF8; binding.TransferMode = TransferMode.Buffered; binding.UseDefaultWebProxy = true; repositoryService = new WorkflowRepositoryServiceClient(binding, endpoint); When I call login method although method is called from machine B, but username and password in Login(string username,string password) are coming null on machine B. Any Idea what I am doing wrong here?

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• amount of data returned by wcf 3.0 service contract method causes error

  - by ferrell carr

  CommuncationException was unhandled The maximum message size quota for incoming messages (65536) has been exceeded. To increase the quota, use the MaxReceivedMessageSize property on the appropriate binding element. here is my svc.map file <?xml version="1.0" encoding="utf-8"?> <ServiceReference> <ProxyGenerationParameters ServiceReferenceUri="http://d3w9501/SimpleWCF/SimpleWCF.svc" Name="svc" NotifyPropertyChange="False" UseObservableCollection="False"> </ProxyGenerationParameters> <EndPoints> <EndPoint Address="http://d3w9501.americas.hpqcorp.net/SimpleWCF/SimpleWCF.svc" BindingConfiguration="BasicHttpBinding_ISimpleWCF" Contract="TestSimpleWCF.svc.ISimpleWCF" > </EndPoint> <bindings> <basicHttpBinding> <binding name="BasicHttpBinding_ISimpleWCF" maxBufferSize="2147483647" maxReceivedMessageSize="2147483647" > <security mode="None" /> </binding> </basicHttpBinding> </bindings> </EndPoints> </ServiceReference>

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• Getting WCF Bindings and Behaviors from any config source

  - by cibrax

  The need of loading WCF bindings or behaviors from different sources such as files in a disk or databases is a common requirement when dealing with configuration either on the client side or the service side. The traditional way to accomplish this in WCF is loading everything from the standard configuration section (serviceModel section) or creating all the bindings and behaviors by hand in code. However, there is a solution in the middle that becomes handy when more flexibility is needed. This solution involves getting the configuration from any place, and use that configuration to automatically configure any existing binding or behavior instance created with code.  In order to configure a binding instance (System.ServiceModel.Channels.Binding) that you later inject in any endpoint on the client channel or the service host, you first need to get a binding configuration section from any configuration file (you can generate a temp file on the fly if you are using any other source for storing the configuration).  private BindingsSection GetBindingsSection(string path) { System.Configuration.Configuration config = System.Configuration.ConfigurationManager.OpenMappedExeConfiguration( new System.Configuration.ExeConfigurationFileMap() { ExeConfigFilename = path }, System.Configuration.ConfigurationUserLevel.None); var serviceModel = ServiceModelSectionGroup.GetSectionGroup(config); return serviceModel.Bindings; }   The BindingsSection contains a list of all the configured bindings in the serviceModel configuration section, so you can iterate through all the configured binding that get the one you need (You don’t need to have a complete serviceModel section, a section with the bindings only works).  public Binding ResolveBinding(string name) { BindingsSection section = GetBindingsSection(path); foreach (var bindingCollection in section.BindingCollections) { if (bindingCollection.ConfiguredBindings.Count > 0 && bindingCollection.ConfiguredBindings[0].Name == name) { var bindingElement = bindingCollection.ConfiguredBindings[0]; var binding = (Binding)Activator.CreateInstance(bindingCollection.BindingType); binding.Name = bindingElement.Name; bindingElement.ApplyConfiguration(binding); return binding; } } return null; }   The code above does just that, and also instantiates and configures the Binding object (System.ServiceModel.Channels.Binding) you are looking for. As you can see, the binding configuration element contains a method “ApplyConfiguration” that receives the binding instance that needs to be configured. A similar thing can be done for instance with the “Endpoint” behaviors. You first get the BehaviorsSection, and then, the behavior you want to use.  private BehaviorsSection GetBehaviorsSection(string path) { System.Configuration.Configuration config = System.Configuration.ConfigurationManager.OpenMappedExeConfiguration( new System.Configuration.ExeConfigurationFileMap() { ExeConfigFilename = path }, System.Configuration.ConfigurationUserLevel.None); var serviceModel = ServiceModelSectionGroup.GetSectionGroup(config); return serviceModel.Behaviors; }public List<IEndpointBehavior> ResolveEndpointBehavior(string name) { BehaviorsSection section = GetBehaviorsSection(path); List<IEndpointBehavior> endpointBehaviors = new List<IEndpointBehavior>(); if (section.EndpointBehaviors.Count > 0 && section.EndpointBehaviors[0].Name == name) { var behaviorCollectionElement = section.EndpointBehaviors[0]; foreach (BehaviorExtensionElement behaviorExtension in behaviorCollectionElement) { object extension = behaviorExtension.GetType().InvokeMember("CreateBehavior", BindingFlags.InvokeMethod | BindingFlags.NonPublic | BindingFlags.Instance, null, behaviorExtension, null); endpointBehaviors.Add((IEndpointBehavior)extension); } return endpointBehaviors; } return null; }   In this case, the code for creating the behavior instance is more tricky. First of all, a behavior in the configuration section actually represents a set of “IEndpoint” behaviors, and the behavior element you get from the configuration does not have any public method to configure an existing behavior instance. This last one only contains a protected method “CreateBehavior” that you can use for that purpose. Once you get this code implemented, a client channel can be easily configured as follows  var binding = resolver.ResolveBinding("MyBinding"); var behaviors = resolver.ResolveEndpointBehavior("MyBehavior"); SampleServiceClient client = new SampleServiceClient(binding, new EndpointAddress(new Uri("http://localhost:13749/SampleService.svc"), new DnsEndpointIdentity("localhost"))); foreach (var behavior in behaviors) { if(client.Endpoint.Behaviors.Contains(behavior.GetType())) { client.Endpoint.Behaviors.Remove(behavior.GetType()); } client.Endpoint.Behaviors.Add(behavior); }   The code above assumes that a configuration file (in any place) with a binding “MyBinding” and a behavior “MyBehavior” exists. That file can look like this,  <system.serviceModel> <bindings> <basicHttpBinding> <binding name="MyBinding"> <security mode="Transport"></security> </binding> </basicHttpBinding> </bindings> <behaviors> <endpointBehaviors> <behavior name="MyBehavior"> <clientCredentials> <windows/> </clientCredentials> </behavior> </endpointBehaviors> </behaviors> </system.serviceModel>   The same thing can be done of course in the service host if you want to manually configure the bindings and behaviors.  

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• WCF Keep Alive: Whether to disable keepAliveEnabled

  - by Lijo

  I have a WCF web service hosted in a load balanced environment. I do not need any WCF session related functionality in the service. QUESTION What are the scenarios in which performances will be best if keepAliveEnabled = false keepAliveEnabled = true Reference From Load Balancing By default, the BasicHttpBinding sends a connection HTTP header in messages with a Keep-Alive value, which enables clients to establish persistent connections to the services that support them. This configuration offers enhanced throughput because previously established connections can be reused to send subsequent messages to the same server. However, connection reuse may cause clients to become strongly associated to a specific server within the load-balanced farm, which reduces the effectiveness of round-robin load balancing. If this behavior is undesirable, HTTP Keep-Alive can be disabled on the server using the KeepAliveEnabled property with a CustomBinding or user-defined Binding.

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