def get(self, filename):
image = Image.get_by_filename(filename)
if not image:
return self.abort(404)
# Gather the information we take from the user.
identifier = self.request.get('identifier', '')
ip_address = self.request.remote_addr
referrer = self.request.referrer
user_agent = self.request.headers.get('User-Agent', '')
visitor_uuid = self.request.cookies.get('VISITOR_UUID', '')
# If they're not in our database, create a new entity to track them.
visitor = Visitor.get_by_uuid(visitor_uuid)
if visitor is None:
visitor = Visitor()
visitor.put()
visit = Visit(identifier=identifier, ip_address=ip_address,
user_agent=user_agent, referrer=referrer,
image=image.key, visitor=visitor.key)
visit.put()
# Dispatch a task to send the visit to keen.io for analysis.
visit_key = visit.key.urlsafe()
logging.info('Dispatching task to process {visit_key}'
.format(visit_key=visit_key))
taskqueue.add(url=self.uri_for('analytics'),
params={'visit_key': visit_key})
self.response.content_type = str(image.content_type)
self.response.set_cookie(key='VISITOR_UUID', value=visitor.uuid)
self.response.out.write(image.data)
def test_get_by_uuid(self):
visitor = Visitor()
visitor.put()
self.assertIsNotNone(Visitor.get_by_uuid(visitor.uuid))
self.assertIsNone(Visitor.get_by_uuid(''))
def test_put(self):
visitor = Visitor()
visitor.put()
self.assertIsNotNone(visitor.uuid)
