WCF <readerQuotas> maxDepth

Question

In a WCF message, is maxDepth calculated beginning with the soap envelope element?

For example, is the following message considered 5 levels deep?

<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
    <soap:Body>
        <ExecuteResponse xmlns="http://tempuri.org/">
            <ExecuteResult>
                <res>0</res>
            </ExecuteResult>
        </ExecuteResponse>
    </soap:Body>
</soap:Envelope>

Answer 1

Went ahead and tested it. The calculation starts with the envelope node being level 1.

The following message throws an exception if maxDepth is set to 7. It succeeds if maxDepth is set to 8.

  <s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:a="http://www.w3.org/2005/08/addressing">
    <s:Header>
      <a:Action s:mustUnderstand="1">http://ws.lhotka.net/WcfDataPortal/IWcfPortal/Update</a:Action>
      <a:MessageID>urn:uuid:423cf7a3-18b7-47e8-a9f3-399e51db6b34</a:MessageID>
      <ActivityId CorrelationId="3716b91d-7552-4cba-8cfd-649ef7e1a1c3" xmlns="http://schemas.microsoft.com/2004/09/ServiceModel/Diagnostics">c26b4ac3-3327-48ad-ac84-7dc56a241b57</ActivityId>
      <a:ReplyTo>
        <a:Address>http://www.w3.org/2005/08/addressing/anonymous</a:Address>
      </a:ReplyTo>
      <a:To s:mustUnderstand="1">http://localhost/Callisto/WcfAppServer.svc</a:To>
    </s:Header>
    <s:Body>
      <Update xmlns="http://ws.lhotka.net/WcfDataPortal">
        <request z:Id="1" z:Type="Csla.Server.Hosts.WcfChannel.UpdateRequest" z:Assembly="Csla, Version=3.8.3.0, Culture=neutral, PublicKeyToken=93be5fdc093e4c30" xmlns:b="http://schemas.datacontract.org/2004/07/Csla.Server.Hosts.WcfChannel" xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns:z="http://schemas.microsoft.com/2003/10/Serialization/">
          <b:_context z:Id="2" xmlns:c="http://schemas.datacontract.org/2004/07/Csla.Server">
            <c:_clientContext i:nil="true" xmlns:d="http://schemas.microsoft.com/2003/10/Serialization/Arrays"></c:_clientContext>
            <c:_clientCulture z:Id="3">en-US</c:_clientCulture>
            <c:_clientUICulture z:Ref="3" i:nil="true"></c:_clientUICulture>
            <c:_globalContext i:nil="true" xmlns:d="http://schemas.microsoft.com/2003/10/Serialization/Arrays"></c:_globalContext>
            <c:_principal z:Id="4" z:Type="System.Security.Principal.GenericPrincipal" z:Assembly="0">
              <m_identity z:Id="5" z:Type="System.Security.Principal.GenericIdentity" z:Assembly="0" xmlns="http://schemas.datacontract.org/2004/07/System.Security.Principal">
                <m_name z:Id="6"></m_name>
                <m_type z:Ref="6" i:nil="true"></m_type>
              </m_identity>
              <m_roles z:Id="7" z:Size="1" xmlns="http://schemas.datacontract.org/2004/07/System.Security.Principal" xmlns:d="http://schemas.microsoft.com/2003/10/Serialization/Arrays">
                <d:string z:Ref="6" i:nil="true"></d:string>
              </m_roles>
            </c:_principal>
            <c:_remotePortal>true</c:_remotePortal>
          </b:_context>
          <b:_object z:Id="8" z:Type="Callisto.Business.Commands.InitializeServerSystemSettings" z:Assembly="Callisto.Business, Version=0.0.28.0, Culture=neutral, PublicKeyToken=null">
            <_fieldManager i:nil="true" xmlns="http://schemas.datacontract.org/2004/07/Csla.Core" xmlns:c="http://schemas.datacontract.org/2004/07/Csla.Core.FieldManager"></_fieldManager>
            <mbResult xmlns="http://schemas.datacontract.org/2004/07/Callisto.Business.Commands">false</mbResult>
          </b:_object>
        </request>
      </Update>
    </s:Body>
  </s:Envelope>