Django 1.11 on passenger_wsgi not routing POST request

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I\'m trying to setup python on A2 shared hosting via passenger_wsgi. The app is working fine when I run it via \'runserver\'. I tested this both in my local PC, and via SSH tun

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梦如初夏

2021-01-25 05:46

It looks like you may have solved this, but to followup for anyone that may stumble here. I have been using A2Hosting, Passenger, and CPanel with django (and wagtail). What I found was that during POST requests the wsgi SCRIPT_NAME was being set to a relative path and not the root of the application.

When I added logging to each application call, the correct GET request was:

{
  'REQUEST_URI': '/admin/',
  'PATH_INFO': '/admin/',
  'SCRIPT_NAME': '',
  'QUERY_STRING': '',
  'REQUEST_METHOD': 'GET',
  ...

But on that page, a form was submitting a POST, which had the PATH_INFO incorrectly set:

{
  'REQUEST_URI': '/admin/login/',
  'PATH_INFO': '/login/',
  'SCRIPT_NAME': '/admin',
  'QUERY_STRING': '',
  'REQUEST_METHOD': 'POST',
  ...

The workaround I ended up using was to create middleware which asserted a known SCRIPT_NAME and rebuilt the PATH_INFO from it.

# Set this to your root
SCRIPT_NAME = ''

class PassengerPathInfoFix(object):
    """
    Sets PATH_INFO from REQUEST_URI since Passenger doesn't provide it.
    """
    def __init__(self, app):
        self.app = app

    def __call__(self, environ, start_response):
        from urllib.parse import unquote
        environ['SCRIPT_NAME'] = SCRIPT_NAME

        request_uri = unquote(environ['REQUEST_URI'])
        script_name = unquote(environ.get('SCRIPT_NAME', ''))
        offset = request_uri.startswith(script_name) and len(environ['SCRIPT_NAME']) or 0
        environ['PATH_INFO'] = request_uri[offset:].split('?', 1)[0]
        return self.app(environ, start_response)


application = get_wsgi_application()
application = PassengerPathInfoFix(application)