accessing webservice with soap

[Plater]

I have a webservice that claims the following:

SOAP 1.1
The following is a sample SOAP 1.1 request and response. The placeholders shown need to be replaced with actual values.

POST /testdb/UnitReporting.asmx HTTP/1.1
Host: localhost
Content-Type: text/xml; charset=utf-8
Content-Length: length
SOAPAction: "http://mylocation/UpdateInformation"
 
<?xml version="1.0" encoding="utf-8"?>
<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:Body>
    <UpdateInformation xmlns="http://mylocation/">
      <WhenSent>dateTime</WhenSent>
      <StatusMessage>string</StatusMessage>
    </UpdateInformation>
  </soap:Body>
</soap:Envelope>
 

Now I tried to produce this using HttpWebRequest and sent the following(pulled from a packet watcher):

POST /testdb/UnitReporting.asmx/UpdateInformation HTTP/1.1
Content-Type: text/xml; charset=utf-8
SOAPAction: http://mylocation/UpdateInformation
Content-Length: 450
Host: localhost
 
<?xml version="1.0" encoding="utf-8"?>
<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:Body>
    <UpdateInformation xmlns="http://mylocation/">
      <WhenSent>12/30/2008 3:28:01 PM</WhenSent>
      <StatusMessage>Nothing to report</StatusMessage>
    </UpdateInformation>
  </soap:Body>
</soap:Envelope>
 

For return result:

HTTP/1.1 500 Internal Server Error
Server: Microsoft-IIS/5.1
Date: Tue, 30 Dec 2008 20:28:02 GMT
X-Powered-By: ASP.NET
X-AspNet-Version: 2.0.50727
Cache-Control: private
Content-Type: text/plain; charset=utf-8
Content-Length: 236
 
System.InvalidOperationException: Request format is invalid: text/xml; charset=utf-8.
   at System.Web.Services.Protocols.HttpServerProtocol.ReadParameters()
   at System.Web.Services.Protocols.WebServiceHandler.CoreProcessRequest()
 

If I use a regular old POST urlencoded style, i am able to execute the function fine, but trying to do soap fails saying the contenttype is wrong?

Any ideas?



Edit: The (correct version) code I use to produce this:

private static bool DoSoap11Style()
{
    bool retval = false;
    try
    {
        string test = "http://localhost/testdb/UnitReporting.asmx/UpdateInformation";
        HttpWebRequest hwr = (HttpWebRequest)HttpWebRequest.Create(test);
        hwr.Method = "POST";
        hwr.ContentType = "text/xml; charset=utf-8";
        hwr.Headers.Add("SOAPAction", "http://mylocation/UpdateInformation");
 
        string postData = GetPostDataSoap11();
        byte[] byte1 = Encoding.UTF8.GetBytes(postData.ToString());
        hwr.ContentLength = byte1.Length;
        Stream newStream = hwr.GetRequestStream();
        newStream.Write(byte1, 0, byte1.Length);
        newStream.Close();
 
        HttpWebResponse hresp = (HttpWebResponse)hwr.GetResponse();
    }
    catch (Exception ee)
    {
        bool ignoreme = (ee.Message == "");
        retval = false;
    }
    return retval;
}
 
private static string GetPostDataSoap11()
{
    StringBuilder postData = new StringBuilder("");// "firstone=" + "";
    postData.Append("<?xml version=\"1.0\" encoding=\"utf-8\"?>\r\n");
    postData.Append("<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/\">\r\n");
    postData.Append("  <soap:Body>\r\n");
    postData.Append("    <UpdateInformation xmlns=\"http://mylocation/\">\r\n");
    postData.AppendFormat(null, "      <WhenSent>{0}</WhenSent>\r\n", DateTime.Now);
    postData.AppendFormat(null, "      <StatusMessage>{0}</StatusMessage>\r\n", "Nothing to report");
    postData.Append("    </UpdateInformation>\r\n");
    postData.Append("  </soap:Body>\r\n");
    postData.Append("</soap:Envelope>\r\n");
 
    return postData.ToString();
}

[Plater]

And in typical fashion, the problem turned out to be the one thing I thought for sure was right:
http://localhost/testdb/UnitReporting.asmx/UpdateInformation
is used for regular POST, while
http://localhost/testdb/UnitReporting.asmx
is used for soap connections.

REDIT: I guess I had read something wrong, the best working format I have found for soap requests is this:
string datetimeformat = @"yyyy-MM-ddTHH:mm:ss"

Everything else results in the original "local" time transfered to be normalized to the server's local timezone