WCF Content-Length HTTP header on outbound message

Question

I\'m in a tough situation in which a Java web service endpoint hosted on an IBM HTTP Server (IHS) requires a Content-Length header, although it supposedly conforms to HTTP/1

Answer 1

I am not currently able to actually try to run the code to see what happens but something like

WCFClient client = new WCFClient();
using (OperationContextScope scope = new OperationContextScope(client.InnerChannel))    
{     
    HttpRequestMessageProperty req = new HttpRequestMessageProperty();            
    req.Headers.Add("Content-Length", "YOUR CONTENT LENGTH HERE");      
    OperationContext.Current.OutgoingMessageProperties[HttpRequestMessageProperty.Name] = req;      
}

see http://msdn.microsoft.com/en-us/library/aa395196.aspx for more information on how you can use the OperationContextScope object to include additional headers.

update: I do have to say I find this a strange issue. I wonder why the content length isn't being set. I wouldn't be surprissed if your actual problem is somewhere else.

Answer 2

transferMode=StreamedResponse in the app.config helped me too for an issue similar to yours. I had a WCF architecture for Sync Framework and Squid proxy 3.1.20 didn't like the Streamed transferMode Many thanks !

Answer 3

Figured it out. Setting the binding to use transferMode="Streamed" was causing a Transfer-Encoding: chunked. We needed streamed transfers due to very large responses from the web service, so I was able to go with:

Bad:

transferMode="Streamed"

Good:

transferMode="StreamedResponse"

Changing the binding to this solved the problem:

<basicHttpBinding>
    <binding name="MyBinding" closeTimeout="00:30:00" openTimeout="00:30:00"
      receiveTimeout="00:30:00" sendTimeout="00:30:00" allowCookies="false"
      bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard"
      maxBufferSize="65536" maxBufferPoolSize="524288" maxReceivedMessageSize="16777216"
      messageEncoding="Text" textEncoding="utf-8" transferMode="StreamedResponse"
      useDefaultWebProxy="false">
      <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="65536"
        maxBytesPerRead="4096" maxNameTableCharCount="16384" />
      <security mode="None" />
    </binding>
  </basicHttpBinding>