LoginAdapter filter equivalent in Omeka-S

[TimHollies]

In Omeka 2 there is a filter called 'LoginAdapter' which allows plugins to override the default authentication system with another - such as replacing it with the Zend Framework LDAP adapter. This is very useful as it allows us to let academics use their institutional logins on the system.

Is there a system which can allow modules to extend the authentication system in Omeka S or are there any plans to add one? I have not been able to find any events that have similar functionality in the published list in the omeka-s-developer repository or through exploration of the code.

I have also tried using the dependency injection system to swap out the default authentication service factory with my new one (which currently is a copy/paste of the default one anyway) as follows:

'service_manager' => [
    'aliases' => [            
        ZendAuthenticationService::class => LDAP\Service\AuthenticationServiceFactory::class
    ],
    'factories' => [
        OmekaAuthenticationService::class => LDAP\Service\AuthenticationServiceFactory::class
    ],
]

But this throws an error Unable to resolve service "Omeka\AuthenticationService" to a factory; are you certain you provided it during configuration?. I've found I am able to use this technique to mock other classes, but it doesn't seem to work with the Authentication service.

[zerocrates]

Replacing the AuthenticationService is probably the best option here.

Your service names don't look quite right though: The service name for the authentication service should be Omeka\AuthenticationService. There is no OmekaAuthenticationService class, so I'm not sure what your intent is with that service name. It also shouldn't be necessary to specify an alias at all: the existing alias in the core service manager configuration should suffice.

[TimHollies]

Yes, it appears I was getting a bit confused with the whole class aliasing system. The following works to replace the built in authentication service with a custom factory which returns a different Zend\Authentication\AuthenticationService.

return [
    // Add this section:
    'service_manager' => [
        'factories' => [
            'Omeka\AuthenticationService' => 'LDAP\Service\AuthenticationServiceFactory'
        ]
    ]
];

Thanks for your help :)