WCF Mixed authentication UserName and WIndows

Question

It is possible to use 2 types of authentications: windows and Username in wcf, using Message security Mode and certificate to authenticate. My UserName authentication cfg/code looks:
Server cfg:

<?xml version="1.0"?>
  <configuration>
<system.serviceModel>
    <behaviors>
        <serviceBehaviors>
            <behavior name="ServiceCredentialsBehavior">
                <serviceCredentials>
                    <serviceCertificate findValue="cn=cool" storeName="TrustedPeople" storeLocation="CurrentUser" />
                    <userNameAuthentication userNamePasswordValidationMode="Custom" customUserNamePasswordValidatorType="Util.CustomUserNameValidator, Util"  />
                </serviceCredentials>
                <serviceMetadata httpGetEnabled="true" />
            </behavior>
        </serviceBehaviors>
    </behaviors>
    <services>
        <service behaviorConfiguration="ServiceCredentialsBehavior" name="Service">
            <endpoint address="" binding="wsHttpBinding" bindingConfiguration="MessageAndUserName" name="SecuredByTransportEndpoint" contract="IService"/>
        </service>
    </services>
    <bindings>
        <wsHttpBinding>
            <binding name="MessageAndUserName">
                <security mode="Message">
                    <message clientCredentialType="UserName"/>
                </security>
            </binding>
        </wsHttpBinding>
    </bindings>
    <client/>
</system.serviceModel>
 <system.web>
    <compilation debug="true"/>
</system.web>
 </configuration>

Client cfg:

<?xml version="1.0" encoding="utf-8"?>
  <configuration>
<system.serviceModel>
    <behaviors>
        <endpointBehaviors>
            <behavior name="LocalCertValidation">
                <clientCredentials>
                    <serviceCertificate>
                        <authentication certificateValidationMode="PeerTrust" trustedStoreLocation="CurrentUser" />
                    </serviceCertificate>
                </clientCredentials>
            </behavior>
        </endpointBehaviors>
    </behaviors>
    <bindings>
        <wsHttpBinding>
            <binding name="WSHttpBinding_IService" >
                <security mode="Message">
                    <message clientCredentialType="UserName" />
                </security>
            </binding>
        </wsHttpBinding>
    </bindings>
    <client>
        <endpoint address="http://localhost:48097/WCFServer/Service.svc"
                  binding="wsHttpBinding"
                  bindingConfiguration="WSHttpBinding_IService"
                  contract="ServiceReference1.IService"
                  name="WSHttpBinding_IService" behaviorConfiguration="LocalCertValidation">
            <identity>
                <dns value ="cool" />
            </identity>
        </endpoint>
    </client>
</system.serviceModel>
</configuration>

What to change, server to know windows identity that access it?

Answer 1

Interesting question! If you really need to have a mix of authentication, you could try having transport set as one authentication type, and message as the other. I have no idea if this would work in practice, but it seems reasonable given that you can configure them separately :)

You could see if you can set something similar to the below for your binding to pick up the windows credentials (wsHttpBinding can handle windows credentials).

 <security mode="Transport">
        <transport clientCredentialType="Whatever your authentication method is" />
        <message clientCredentialType="Windows" />
      </security>

If you try it, let me know if it works!

EDIT:

Oh, according to the documentation it is possible to do mixed authentication. You have to set the mode to "Mixed", so the config might look something like this:

 <security mode="mixed">
        <transport clientCredentialType="Whatever your authentication method is" />
        <message clientCredentialType="Windows" />
      </security>

From the documentation:

Mixed security. Mixed security gives you the best of both worlds: transport security ensures the integrity and confidentiality of the messages, while the user credentials and claims are encapsulated in every message as in message security. This allows you to use a variety of user credentials that are not possible with strict transport security mechanisms, and to leverage transport security’s performance.