Feature: Zend\Mvc\HttpMethodListener

[stefanotorresi]

as suggested in #6385, here is the event listener to validate standard HTTP request methods and to make the application return a 405 empty response for unsupported methods.

the listener is ready to be registered via the listeners key in application.config.php with the name HttpMethodListener; however, for the time being it's not registered by default as originally suggested by @weierophinney.

to make that happen, we would have to add a key to Zend\Mvc\Application::$defaultListeners, and I discovered that this would cause some tests to fail because they assert there is precisely one default listener per event, which is a bit odd. Personally, I would update these tests with a different assertion to make them not interfere with future default listeners additions.

Here is a proposal to update the relevant tests ready to merge into this PR.

I will wait for for further instructions on the matter.

[weierophinney]

we would have to add a key to Zend\Mvc\Application::$defaultListeners, and I discovered that this would cause some tests to fail because they assert there is precisely one default listener per event, which is a bit odd. Personally, I would update these tests with a different assertion to make them not interfere with future default listeners additions.

This makes sense to me; to be honest, it's an implementation detail at best, so I think we can relax the restrictions.

Please update the PR with the proposed changes, and I'll review again for 2.4!

[stefanotorresi]

@weierophinney done! 😆