Python django.core.wsgi.get_wsgi_application() Examples

def django_setup_script():
    #################################################################
    #           TO make this app compatible with Django             #
    #################################################################
    import os
    import sys

    proj_path = (os.path.join(os.path.dirname(os.path.realpath(__file__)), os.pardir))
    # venv_python = os.path.join(proj_path, '..', '.venv', 'bin', 'python')
    # This is so Django knows where to find stuff.
    sys.path.append(os.path.join(proj_path, '..'))
    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "OnToology.settings")
    sys.path.append(proj_path)

    # This is so my local_settings.py gets loaded.
    os.chdir(proj_path)

    # This is so models get loaded.
    from django.core.wsgi import get_wsgi_application

    application = get_wsgi_application()

    ################################################################# 

def app_with_scout(**settings):
    """
    Context manager that simply overrides settings. Unlike the other web
    frameworks, Django is a singleton application, so we can't smoothly
    uninstall and reinstall scout per test.
    """
    settings.setdefault("SCOUT_MONITOR", True)
    settings["SCOUT_CORE_AGENT_LAUNCH"] = False
    with override_settings(**settings):
        # Have to create a new WSGI app each time because the middleware stack
        # within it is static
        app = get_wsgi_application()
        # Run Django checks on first use
        if not getattr(app_with_scout, "startup_ran", False):
            call_command("migrate")
            call_command("check")
            app_with_scout.startup_ran = True
        yield app 

def main():
    os.environ['DJANGO_SETTINGS_MODULE'] = 'demosite.settings' # TODO: edit this
    sys.path.append('./demosite') # path to your project if needed

    parse_command_line()

    wsgi_app = get_wsgi_application()
    container = tornado.wsgi.WSGIContainer(wsgi_app)

    tornado_app = tornado.web.Application(
        [
            ('/hello-tornado', HelloHandler),
            ('.*', tornado.web.FallbackHandler, dict(fallback=container)),
        ])

    server = tornado.httpserver.HTTPServer(tornado_app)
    server.listen(options.port)

    tornado.ioloop.IOLoop.instance().start() 

def test_file_wrapper(self):
        """
        FileResponse uses wsgi.file_wrapper.
        """
        class FileWrapper:
            def __init__(self, filelike, blksize=8192):
                filelike.close()
        application = get_wsgi_application()
        environ = RequestFactory()._base_environ(
            PATH_INFO='/file/',
            REQUEST_METHOD='GET',
            **{'wsgi.file_wrapper': FileWrapper}
        )
        response_data = {}

        def start_response(status, headers):
            response_data['status'] = status
            response_data['headers'] = headers
        response = application(environ, start_response)
        self.assertEqual(response_data['status'], '200 OK')
        self.assertIsInstance(response, FileWrapper) 

def test_default(self):
        """
        If ``WSGI_APPLICATION`` is ``None``, the return value of
        ``get_wsgi_application`` is returned.
        """
        # Mock out get_wsgi_application so we know its return value is used
        fake_app = object()

        def mock_get_wsgi_app():
            return fake_app
        from django.core.servers import basehttp
        _orig_get_wsgi_app = basehttp.get_wsgi_application
        basehttp.get_wsgi_application = mock_get_wsgi_app

        try:
            app = get_internal_wsgi_application()

            self.assertIs(app, fake_app)
        finally:
            basehttp.get_wsgi_application = _orig_get_wsgi_app 

def test_file_wrapper(self):
        """
        FileResponse uses wsgi.file_wrapper.
        """
        class FileWrapper:
            def __init__(self, filelike, blksize=8192):
                filelike.close()
        application = get_wsgi_application()
        environ = self.request_factory._base_environ(
            PATH_INFO='/file/',
            REQUEST_METHOD='GET',
            **{'wsgi.file_wrapper': FileWrapper}
        )
        response_data = {}

        def start_response(status, headers):
            response_data['status'] = status
            response_data['headers'] = headers
        response = application(environ, start_response)
        self.assertEqual(response_data['status'], '200 OK')
        self.assertIsInstance(response, FileWrapper) 

def run():
    if not settings.configured:
        raise ImproperlyConfigured("You should call configure() after configuration define.")

    if _parent_module.__name__ == '__main__':
        from django.core.management import execute_from_command_line
        execute_from_command_line(sys.argv)
    else:
        from django.core.wsgi import get_wsgi_application
        return get_wsgi_application() 

def get_internal_wsgi_application():
    """
    Loads and returns the WSGI application as configured by the user in
    ``settings.WSGI_APPLICATION``. With the default ``startproject`` layout,
    this will be the ``application`` object in ``projectname/wsgi.py``.

    This function, and the ``WSGI_APPLICATION`` setting itself, are only useful
    for Django's internal servers (runserver, runfcgi); external WSGI servers
    should just be configured to point to the correct application object
    directly.

    If settings.WSGI_APPLICATION is not set (is ``None``), we just return
    whatever ``django.core.wsgi.get_wsgi_application`` returns.

    """
    from django.conf import settings
    app_path = getattr(settings, 'WSGI_APPLICATION')
    if app_path is None:
        return get_wsgi_application()

    try:
        return import_string(app_path)
    except ImportError as e:
        msg = (
            "WSGI application '%(app_path)s' could not be loaded; "
            "Error importing module: '%(exception)s'" % ({
                'app_path': app_path,
                'exception': e,
            })
        )
        six.reraise(ImproperlyConfigured, ImproperlyConfigured(msg),
                    sys.exc_info()[2]) 

def runtests():
    os.environ["DJANGO_SETTINGS_MODULE"] = "tests.settings"

    from django.core.wsgi import get_wsgi_application
    application = get_wsgi_application()

    from django.core.management import call_command
    result = call_command('test', 'userapp')
    sys.exit(result) 

def load(self):
        return get_wsgi_application() 

def get_internal_wsgi_application():
    """
    Loads and returns the WSGI application as configured by the user in
    ``settings.WSGI_APPLICATION``. With the default ``startproject`` layout,
    this will be the ``application`` object in ``projectname/wsgi.py``.

    This function, and the ``WSGI_APPLICATION`` setting itself, are only useful
    for Django's internal servers (runserver, runfcgi); external WSGI servers
    should just be configured to point to the correct application object
    directly.

    If settings.WSGI_APPLICATION is not set (is ``None``), we just return
    whatever ``django.core.wsgi.get_wsgi_application`` returns.

    """
    from django.conf import settings
    app_path = getattr(settings, 'WSGI_APPLICATION')
    if app_path is None:
        return get_wsgi_application()
    module_name, attr = app_path.rsplit('.', 1)
    try:
        mod = import_module(module_name)
    except ImportError as e:
        raise ImproperlyConfigured(
            "WSGI application '%s' could not be loaded; "
            "could not import module '%s': %s" % (app_path, module_name, e))
    try:
        app = getattr(mod, attr)
    except AttributeError as e:
        raise ImproperlyConfigured(
            "WSGI application '%s' could not be loaded; "
            "can't find '%s' in module '%s': %s"
            % (app_path, attr, module_name, e))

    return app 

def get_django_wsgi(settings_module):
    from django.core.wsgi import get_wsgi_application
    os.environ.setdefault("DJANGO_SETTINGS_MODULE", settings_module)

    import django

    if django.VERSION[0] <= 1 and django.VERSION[1] < 7:
        # call django.setup only for django <1.7.0
        # (because setup already in get_wsgi_application since that)
        # https://github.com/django/django/commit/80d74097b4bd7186ad99b6d41d0ed90347a39b21
        django.setup()

    return get_wsgi_application() 

def test_get_wsgi_application(self):
        """
        get_wsgi_application() returns a functioning WSGI callable.
        """
        application = get_wsgi_application()

        environ = RequestFactory()._base_environ(
            PATH_INFO="/",
            CONTENT_TYPE="text/html; charset=utf-8",
            REQUEST_METHOD="GET"
        )

        response_data = {}

        def start_response(status, headers):
            response_data["status"] = status
            response_data["headers"] = headers

        response = application(environ, start_response)

        self.assertEqual(response_data["status"], "200 OK")
        self.assertEqual(
            set(response_data["headers"]),
            {('Content-Length', '12'), ('Content-Type', 'text/html; charset=utf-8')})
        self.assertIn(bytes(response), [
            b"Content-Length: 12\r\nContent-Type: text/html; charset=utf-8\r\n\r\nHello World!",
            b"Content-Type: text/html; charset=utf-8\r\nContent-Length: 12\r\n\r\nHello World!"
        ]) 

def test_get_wsgi_application(self):
        """
        get_wsgi_application() returns a functioning WSGI callable.
        """
        application = get_wsgi_application()

        environ = self.request_factory._base_environ(
            PATH_INFO="/",
            CONTENT_TYPE="text/html; charset=utf-8",
            REQUEST_METHOD="GET"
        )

        response_data = {}

        def start_response(status, headers):
            response_data["status"] = status
            response_data["headers"] = headers

        response = application(environ, start_response)

        self.assertEqual(response_data["status"], "200 OK")
        self.assertEqual(
            set(response_data["headers"]),
            {('Content-Length', '12'), ('Content-Type', 'text/html; charset=utf-8')})
        self.assertIn(bytes(response), [
            b"Content-Length: 12\r\nContent-Type: text/html; charset=utf-8\r\n\r\nHello World!",
            b"Content-Type: text/html; charset=utf-8\r\nContent-Length: 12\r\n\r\nHello World!"
        ]) 

def main():
    from django.core.wsgi import get_wsgi_application
    import tornado.wsgi
    wsgi_app = get_wsgi_application()
    container = tornado.wsgi.WSGIContainer(wsgi_app)
    setting = {
        'cookie_secret': 'DFksdfsasdfkasdfFKwlwfsdfsa1204mx',
        'template_path': os.path.join(os.path.dirname(__file__), 'templates'),
        'static_path': os.path.join(os.path.dirname(__file__), 'static'),
        'debug': False,
    }
    tornado_app = tornado.web.Application(
        [
            (r'/ws/monitor', MonitorHandler),
            (r'/ws/terminal', WebTerminalHandler),
            (r'/ws/kill', WebTerminalKillHandler),
            (r'/ws/exec', ExecHandler),
            (r"/static/(.*)", tornado.web.StaticFileHandler,
             dict(path=os.path.join(os.path.dirname(__file__), "static"))),
            ('.*', tornado.web.FallbackHandler, dict(fallback=container)),
        ], **setting)

    server = tornado.httpserver.HTTPServer(tornado_app)
    server.listen(options.port, address=IP)

    tornado.ioloop.IOLoop.instance().start()