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Eclipse Scout disable login? [message #1774241]

Thu, 12 October 2017 06:50

Corrado Parisi

Messages: 32
Registered: September 2016

Member

For an internal, productive application a login could be omitted. Is there a sensible way to disable the default scout login?

I have only found the option to set in the config.properties:

### Development
scout.dev.mode=true

This disables the login but maybe brings other, unwished side-effects such as an instable production system.

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Re: Eclipse Scout disable login? [message #1774350 is a reply to message #1774241]

Fri, 13 October 2017 06:54

Benjamin Schulte

Messages: 34
Registered: December 2016

Member

Take a look at UiServletFilter.doFilter method.

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Re: Eclipse Scout disable login? [message #1774351 is a reply to message #1774241]

Fri, 13 October 2017 07:20

Beat Schwarzentrub

Messages: 205
Registered: November 2010

Senior Member

Yes, there are a couple of side effects when you turn on development mode that are not suitable for production use (e.g. disabled caching).

Authentication in Scout is based on plain J2EE security (JAAS). You basically handle authentication in servlet filters, the application itself does not have to deal with it. It just expects to be running in a JAAS security context (Subject.doAs). If you look at your web.xml file, you will see a preconfigured servlet filter. This is the one Benjamin has mentioned. It's located in your project, so you may freely adjust it to your needs. The doFilter() method delegates to one or more "access controlers". One of those is the DevelopmentAccessController, which is responsible for the disabled login screen in development mode (it just creates a JAAS Principal using the current user name). But you may also create your own access controllers.

For your purpose, it may be sufficient to use the AnonymousAccessController that is included in Scout (org.eclipse.scout.rt.server.commons.authentication.AnonymousAccessController).

Regards,
Beat

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Re: Eclipse Scout disable login? [message #1774371 is a reply to message #1774351]

Fri, 13 October 2017 11:46

Corrado Parisi

Messages: 32
Registered: September 2016

Member

Thanks for the given information!

Works perfectly.

For others here are more detailed steps I performed on the UiServletFilter:

1) Add field:
private AnonymousAccessController m_anonymousAccessController;

2) Initialize the field in the init method:
m_anonymousAccessController = (AnonymousAccessController.class).init();

3) Add if statement to doFilter method analogue to the other ones:
if(m_anonymousAccessController.handle(req, resp, chain)) {
return;
}

4) Call m_anonymousAccessController.destroy(); in the destroy() method for consistency reasons. (It does nothing).

You are done. :)

If you want to disable this functionality you could specify: scout.auth.anonymous.enabled=false

In the config.properties of the ui.html module.

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