Databases
StackOverflow2013
Postsdbo
PODuplex communication using NetTcpBinding - ContractFilter mismatch?
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PODuplex communication using NetTcpBinding - ContractFilter mismatch?
    primarykey
    data
    text
    <p>I'm making slow and steady progress towards having a duplex communication channel open between a client and a server, using NetTcpBinding. (FYI, you can observe my newbie progress <a href="https://stackoverflow.com/q/4461591/7850">here</a> and <a href="https://stackoverflow.com/q/4526284/7850">here</a>!)</p> <p>I'm now at the stage where I have successfully connected to my server, through the server's firewall, and the client can make requests of the server.</p> <p>In the other direction, however, things aren't quite so happy. It works fine when testing on my own machine, but when testing over the internet, when I try to initiate a callback from the server side, I get an error:</p> <pre><code>The message with Action 'http://MyWebService/IWebService/HelloWorld' cannot be processed at the receiver, due to a ContractFilter mismatch at the EndpointDispatcher. This may be because of either a contract mismatch (mismatched Actions between sender and receiver) or a binding/security mismatch between the sender and the receiver. Check that sender and receiver have the same contract and the same binding (including security requirements, e.g. Message, Transport, None). </code></pre> <p>Here are some of the key bits of code. First, the web interface:</p> <pre><code>[ServiceContract(Namespace = "http://MyWebService", SessionMode = SessionMode.Required, CallbackContract = typeof(ISiteServiceExternal))] public interface IWebService { [OperationContract] void Register(long customerID); } public interface ISiteServiceExternal { [OperationContract] string HelloWorld(); } </code></pre> <p>Here's the implementation of IWebService:</p> <pre><code>[ServiceBehavior(InstanceContextMode = InstanceContextMode.PerCall)] class WebService : IWebService { void IWebService.Register(long customerID) { Console.WriteLine("customer {0} registering", customerID); var callbackService = OperationContext.Current.GetCallbackChannel&lt;ISiteServiceExternal&gt;(); RegisterClient(customerID, callbackService); Console.WriteLine("customer {0} registered", customerID); } } </code></pre> <p>Then, on the client side (I was fiddling with these attributes without really knowing what I'm doing):</p> <pre><code>[ServiceBehavior(InstanceContextMode = InstanceContextMode.PerSession, Namespace="http://MyWebService")] class SiteServer : IWebServiceCallback { string IWebServiceCallback.HelloWorld() { return "Hello World!"; } ... } </code></pre> <p>So what am I doing wrong here?</p> <p><strong>EDIT:</strong> Adding app.config code. From server:</p> <pre><code>&lt;system.serviceModel&gt; &lt;diagnostics&gt; &lt;messageLogging logMalformedMessages="true" logMessagesAtServiceLevel="true" logMessagesAtTransportLevel="true" logEntireMessage="true" maxMessagesToLog="1000" maxSizeOfMessageToLog="524288" /&gt; &lt;/diagnostics&gt; &lt;behaviors&gt; &lt;serviceBehaviors&gt; &lt;behavior name="mex"&gt; &lt;serviceDebug includeExceptionDetailInFaults="true"/&gt; &lt;serviceMetadata/&gt; &lt;/behavior&gt; &lt;/serviceBehaviors&gt; &lt;/behaviors&gt; &lt;services&gt; &lt;service name ="MyWebService.WebService" behaviorConfiguration="mex"&gt; &lt;endpoint address="net.tcp://localhost:8000" binding="netTcpBinding" contract="MyWebService.IWebService" bindingConfiguration="TestBinding" name="MyEndPoint"&gt;&lt;/endpoint&gt; &lt;endpoint address ="mex" binding="mexTcpBinding" name="MEX" contract="IMetadataExchange"/&gt; &lt;host&gt; &lt;baseAddresses&gt; &lt;add baseAddress="net.tcp://localhost:8000"/&gt; &lt;/baseAddresses&gt; &lt;/host&gt; &lt;/service&gt; &lt;/services&gt; &lt;bindings&gt; &lt;netTcpBinding&gt; &lt;binding name="TestBinding" maxBufferPoolSize="524288" maxReceivedMessageSize="65536" portSharingEnabled="false"&gt; &lt;readerQuotas maxDepth="32" maxStringContentLength ="8192" maxArrayLength ="16384" maxBytesPerRead="4096" maxNameTableCharCount="16384"/&gt; &lt;security mode="None"/&gt; &lt;/binding&gt; &lt;/netTcpBinding&gt; &lt;/bindings&gt; &lt;/system.serviceModel&gt; </code></pre> <p>and on the client side:</p> <pre><code>&lt;system.serviceModel&gt; &lt;bindings&gt; &lt;netTcpBinding&gt; &lt;binding name="MyEndPoint" closeTimeout="00:01:00" openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00" transactionFlow="false" transferMode="Buffered" transactionProtocol="OleTransactions" hostNameComparisonMode="StrongWildcard" listenBacklog="10" maxBufferPoolSize="524288" maxBufferSize="65536" maxConnections="10" maxReceivedMessageSize="65536"&gt; &lt;readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384" maxBytesPerRead="4096" maxNameTableCharCount="16384" /&gt; &lt;reliableSession ordered="true" inactivityTimeout="00:10:00" enabled="false" /&gt; &lt;security mode="None"&gt; &lt;transport clientCredentialType="Windows" protectionLevel="EncryptAndSign"&gt; &lt;extendedProtectionPolicy policyEnforcement="Never" /&gt; &lt;/transport&gt; &lt;message clientCredentialType="Windows" /&gt; &lt;/security&gt; &lt;/binding&gt; &lt;/netTcpBinding&gt; &lt;/bindings&gt; &lt;client&gt; &lt;endpoint address="net.tcp://mydomain.gotdns.com:8000/" binding="netTcpBinding" bindingConfiguration="MyEndPoint" contract="IWebService" name="MyEndPoint" /&gt; &lt;/client&gt; &lt;/system.serviceModel&gt; </code></pre>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USCommunity
    1. USShaul Behr
    plurals
    1. PL
      singulars
      1. LTLinked
    2. PL
      singulars
      1. LTLinked
    1. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. PODuplex communication using NetTcpBinding - ContractFilter mismatch?
      1. USbugfixr
      1. VTFavorite
    2. VO
      singulars
      1. PODuplex communication using NetTcpBinding - ContractFilter mismatch?
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. PODuplex communication using NetTcpBinding - ContractFilter mismatch?
      1. USCel
      1. VTFavorite
    1. COHow does your App.config/Web.config look like? How are you instantiating your auto-generated service (are you passing in an instance of `SiteServer`)? A few suggestions to simplify things: Don't specify a namespace anywhere (on the client or the server), don't implement the IWebServiceCallback explicitly (by removing `IWebServiceCallback.` from `string IWebServiceCallback.HelloWorld() {`.
      singulars
      1. PODuplex communication using NetTcpBinding - ContractFilter mismatch?
      1. USAllon Guralnek
    2. CO@Allon - why not implement IWebServiceCallback explicitly? Why should that make a difference?
      singulars
      1. PODuplex communication using NetTcpBinding - ContractFilter mismatch?
      1. USShaul Behr
    3. COHave edited question to show app.config on either side
      singulars
      1. PODuplex communication using NetTcpBinding - ContractFilter mismatch?
      1. USShaul Behr
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload