Correctly pass the multiple parameters to the cubicweb request When naively converted to a dict, the webob MultiDict will not set the multiple parameters (a same name with several values) in a way CW can understand. MultiDict.mixed() however, does exactly what CW needs: list values for keys with multiple values, and single value for the others. Related to #4291181

Add a wsgi application factory suitable for wsgi servers. This factory can generate a wsgi application for a cubicweb instance. It reads the instance name from the CW_INSTANCE environment variable, and activates the debugmode if CW_DEBUG is defined in environment. It is usable by uwsgi as the 'module' parameter : CW_INSTANCE=test uwsgi --plugins python,http --http 0.0.0.0:8080 --module pyramid_cubicweb:wsgi_application()

If any cube has a 'includeme' attribute, call config.include on it Related to #4291181

Add a make_cubicweb_application function This function will be used by the 'pyramid' cubicweb-ctl command. Related to #4291173

Fix session closing for cubicweb 3.19 Related to #4291173

Convert cubicweb.NotFound to HTTPNotFound Related to #4291173

Use registry['cubicweb.registry'] instead of registry['cubicweb.appli'].vreg because the application may not be present. Related to #4291173

Use a predicate based view selection for handling /login This will allow easy addition of login handlers from the application or cubes Related to #4291173

Use a tween application instead of a catchall route. Using a catchall route has some drawbacks. Especially, we have no mean to have a route that would match only if no other one does AND no view matches either. Said differently, our default handler cannot be plugged on the route level nor the view level, because it is has to be activated only if nothing else works in the pyramid application. Using a tween application allow to handle requests that raises a HTTPNotFound error, while having the pyramid error handler still active between our tween app and the outside world. Related to #4291173

Document the view problem hypothesis. Related to #4291173

If the postlogin_path is 'login', redirect to '/' instead Related to #4291173

Put the login view in a separate module. Related to #4291173

Separate into 4 modules * init_instance: load the cubicweb repository from the `pyramid_cubicweb.instance` configuration key * defaults: provides cw-like defaults for the authentication and session management * core: make cubicweb use the authentication and session management of pyramid. It assumes the application provides the auth policies and session factory, and that the `cubicweb.*` registry entries are correctly initialised. This is this only required module or pyramid_cubicweb, the other ones are optional if the application provides its own versions of what they do. * bwcompat: provides a catchall route that delegate the request handling to an old-fashion cubicweb publisher (ie using url_resolver and controllers). Related to #4291173

Update the TODO list Related to #4291173

Provide instructions and a requirements list to quickly start the sample application. Related to #4291173