def __call__(self, environ, start_response):
'''Determine which app to call by asking each app if it can handle the
url and method defined on the eviron'''
# Process locale part on the incoming request URL so it doesn't affect
# the mapper queries
handle_i18n(environ)
app_name = 'pylons_app' # currently defaulting to pylons app
answers = self.ask_around(environ)
available_handlers = []
for answer in answers:
if len(answer) == 2:
can_handle, asked_app = answer
origin = 'core'
else:
can_handle, asked_app, origin = answer
if can_handle:
available_handlers.append('{0}_{1}'.format(asked_app, origin))
# Enforce order of precedence:
# Flask Extension > Pylons Extension > Flask Core > Pylons Core
if available_handlers:
if 'flask_app_extension' in available_handlers:
app_name = 'flask_app'
elif 'pylons_app_extension' in available_handlers:
app_name = 'pylons_app'
elif 'flask_app_core' in available_handlers:
app_name = 'flask_app'
log.debug('Serving request via {0} app'.format(app_name))
environ['ckan.app'] = app_name
if app_name == 'flask_app':
# This request will be served by Flask, but we still need the
# Pylons URL builder (Routes) to work
parts = urlparse(config.get('ckan.site_url',
'http://0.0.0.0:5000'))
request_config = routes_request_config()
request_config.host = str(parts.netloc + parts.path)
request_config.protocol = str(parts.scheme)
request_config.mapper = config['routes.map']
return self.apps[app_name](environ, start_response)
else:
# Although this request will be served by Pylons we still
# need an application context in order for the Flask URL
# builder to work and to be able to access the Flask config
flask_app = self.apps['flask_app']._wsgi_app
with flask_app.test_request_context():
return self.apps[app_name](environ, start_response)
def ckan_before_request():
u'''Common handler executed before all Flask requests'''
# Handle locale in URL
handle_i18n()
# Update app_globals
app_globals.app_globals._check_uptodate()
# Identify the user from the repoze cookie or the API header
# Sets g.user and g.userobj
identify_user()
# Provide g.controller and g.action for backward compatibility
# with extensions
set_controller_and_action()
g.__timer = time.time()
def __call__(self, environ, start_response):
handle_i18n(environ)
return self.app(environ, start_response)