def _on_message(self, ch, method, properties, body):
print "message received!"
data = json.loads(api.decrypt_msg(
AppModel.objects(nid=self.nid).scalar('private_key').get(),
body))
print data
server_id = AppModel.objects(nid=self.nid).scalar('master_sid').get()
## access to the shared resource has been permitted
if (data['action'] == _ACTION_KEYS[8]):
if server_id == data['by']: # for minimum integrity
# this data format is to save contents by 'add_comments' function
# send all data that is locally stored then it will be filtered to store to
# the shared resource inside 'add_comments' function
data = {
'permission':True, # this action would be only triggered with master server's permission
'nid':self.nid,
'sid':data['by'],
'content':map(lambda x:{
'by':x.by,
'created_at':x.timestamp,
'comment':x.comment,
'session_id':x.session_id
}, CommentReplicaModel.objects.all())
}
app_api.add_comments(**data)
def execute_command(self, encrypted_action):
print "server calling rpc"
data = json.loads(
api.decrypt_msg(self.model.private_key, encrypted_action))
action = data['action']
print action
## response from master server has arrived, stop trying to reach other servers
if self.timer.is_alive():
self.timer.stop()
## server sent info
if (action == api._ACTION_KEYS[0]):
self._store_server_info(data['data'], self.model.nid)
## add comments
elif(action == api._ACTION_KEYS[5]):
data['nid'] = self.model.nid
"""data['content'].update(
{
'nid':self.model.nid,
'sid':data['sid']
})"""
return api.encrypt_msg(AppModel.objects(
nid=self.model.nid).get().server_public_key,
app_api.add_comments(**data))
