Ticket #719 (defect)

Routes dispatcher in 3.0.2 currently fails when generaing urls with url_for() function. The reason behind this behaviour is that WSGIEnvProxy object is not subscriptable.

This can be solved by adding three more methods to WSGIEnvProxy class:

    def get(self, key, fallback = None):
        if key in cherrypy.request.wsgi_environ:
            return cherrypy.request.wsgi_environ[key]
        else:
            return fallback

    def __contains__(self, key):
        return key in cherrypy.request.wsgi_environ

    def __getitem__(self, key):
        return cherrypy.request.wsgi_environ[key]

But this does in fact still use an unnecessary workaround. The WSGIEnvProxy is not needed because routes is thread safe. It is sufficient to change

self.mapper.environ = WSGIEnvProxy()

in RoutesDispatcher? to

if hasattr(cherrypy.request, 'wsgi_environ'):
    config.environ = cherrypy.request.wsgi_environ

Such use is recommended by Routes documentation. The WSGIEnvProxy class can be dropped altogether.

The if hasattr(...) is there because during server self-tests requests are made without wsgi_environ, perhaps this should be fixed too.