How to set up WorkflowService authentication? - authentication

Question

I just need to secure my WF services. Can't find any resources on this. How to do it?
Already tried:
class Program
{
static void Main(string[] args)
{
using (WorkflowServiceHost host = new WorkflowServiceHost(new Workflow1(), new Uri("http://localhost/Test")))
{
host.Credentials.UserNameAuthentication.UserNamePasswordValidationMode = System.ServiceModel.Security.UserNamePasswordValidationMode.Custom;
host.Credentials.UserNameAuthentication.CustomUserNamePasswordValidator = new Test();
host.Open();
Console.Write("ready");
Console.ReadLine();
}
}
}
public class Test : UserNamePasswordValidator
{
public Test()
{
Console.Write("hit");
}
public override void Validate(string userName, string password)
{
Console.Write("never hit");
}
}
And a config
<bindings>
<wsHttpBinding>
<binding>
<security mode="Message">
<message clientCredentialType="UserName" />
</security>
</binding>
</wsHttpBinding>
</bindings>
<serviceBehaviors>
<behavior>
<serviceMetadata httpGetEnabled="true"/>
<serviceDebug includeExceptionDetailInFaults="false"/>
<!--<serviceCredentials>
<userNameAuthentication userNamePasswordValidationMode="Custom" customUserNamePasswordValidatorType="myAssembly.Test, myAssembly" />
</serviceCredentials>-->
</behavior>
</serviceBehaviors>
Can't create a fixed name endpoint because they are dynamically created
UPDATE - I tried the configuration bellow and worked, but I want a more granular way to set what binding each service use
<protocolMapping>
<add scheme="http" binding="wsHttpBinding"/>
</protocolMapping>

Answer 1

We have an episode of Workflow TV that should help. Workflow TV - Workflow Services Security

Answer 2

As far as the messaging part this is just WCF so anything you can do with WCF should work here.
That said with workflow you typically need more fine grained control on all but the first request. For example all employees can start en expense report but only the employee who started a specific expense report can add expenses to it and submit it. You can do these kind of security checks using the WF Security Pack.

Answer 3

A little hackish, but works. Overrided WorkflowServiceHost in order to grab unknown contract names and added service endpoints for each one.
const string DEFAULT_WORKFLOW_SERVICE_BINDING_NAME = "WorkflowDefaultBinding";
static void Main(string[] args)
{
MyWorkflowServiceHost host = new MyWorkflowServiceHost(new CountingWorkflow2(), new Uri(hostBaseAddress));
foreach (var contractName in host.ImplementedContractsNames)
{
// now I'm able to choose which binding to use depending on a condition
var binding = new WSHttpBinding(DEFAULT_WORKFLOW_SERVICE_BINDING_NAME);
host.AddServiceEndpoint(contractName, binding, string.Empty);
}
}
And MyWorkflowServiceHost
public class MyWorkflowServiceHost : WorkflowServiceHost
{
public MyWorkflowServiceHost(Activity activity, params Uri[] baseAddresses)
: base(activity, baseAddresses)
{
}
private IDictionary<string, System.ServiceModel.Description.ContractDescription> _implementedContracts;
public IEnumerable<string> ImplementedContractsNames
{
get
{
foreach (var contract in _implementedContracts)
yield return contract.Key;
}
}
protected override System.ServiceModel.Description.ServiceDescription CreateDescription(out System.Collections.Generic.IDictionary<string, System.ServiceModel.Description.ContractDescription> implementedContracts)
{
System.ServiceModel.Description.ServiceDescription description = base.CreateDescription(out implementedContracts);
_implementedContracts = implementedContracts;
return description;
}
}
Adding a unamed WSHttpBinding and the following section on service model should work too, but for default configuration
<protocolMapping>
<add scheme="http" binding="wsHttpBinding"/>
</protocolMapping>