class WSGIHandler base BaseHandler initLock Lock request_class WSGIReq

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class WSGIHandler(base.BaseHandler):
initLock = Lock()
request_class = WSGIRequest
def __call__(self, environ, start_response):
from django.conf import settings
# Set up middleware if needed. We couldn't do this earlier, because
# settings weren't available.
if self._request_middleware is None:
self.initLock.acquire()
# Check that middleware is still uninitialised.
if self._request_middleware is None:
self.load_middleware()
self.initLock.release()
set_script_prefix(base.get_script_name(environ))
signals.request_started.send(sender=self.__class__)
try:
try:
request = self.request_class(environ)
except UnicodeDecodeError:
response = http.HttpResponseBadRequest()
else:
response = self.get_response(request)
# Apply response middleware
for middleware_method in self._response_middleware:
response = middleware_method(request, response)
response = self.apply_response_fixes(request, response)
finally:
signals.request_finished.send(sender=self.__class__)
try:
status_text = STATUS_CODE_TEXT[response.status_code]
except KeyError:
status_text = 'UNKNOWN STATUS CODE'
status = '%s %s' % (response.status_code, status_text)
response_headers = [(str(k), str(v)) for k, v in response.items()]
for c in response.cookies.values():
response_headers.append(('Set-Cookie', str(c.output(header=''))))
start_response(status, response_headers)
return response