Socketio payload checking/size limiting

iamtheuserofthis · October 17, 2019, 6:24am

We are using socketio channel for the communication with our bot. We need to perform various operations after checking the payload from the user. E.G. Rate limiting, restricting payload size etc. Could you suggest me an approach that I could follow.

iamtheuserofthis · October 17, 2019, 10:03am

After looking for I while I found out that maybe creating a custom channel will solve our problem. We picked up the following socket channel file to use as the template:

github.com

RasaHQ/rasa/blob/master/rasa/core/channels/socketio.py

import logging
import uuid
from sanic import Blueprint, response
from sanic.request import Request
from sanic.response import HTTPResponse
from socketio import AsyncServer
from typing import Optional, Text, Any, List, Dict, Iterable, Callable, Awaitable

from rasa.core.channels.channel import InputChannel
from rasa.core.channels.channel import UserMessage, OutputChannel

logger = logging.getLogger(__name__)


class SocketBlueprint(Blueprint):
    def __init__(self, sio: AsyncServer, socketio_path, *args, **kwargs):
        self.sio = sio
        self.socketio_path = socketio_path
        super(SocketBlueprint, self).__init__(*args, **kwargs)

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We are planning to make the payload validation changes in the aforementioned file. But we are still not sure if it is the correct way to go. Kindly advice us on it.

msamogh · October 21, 2019, 7:14pm

You are on the right track. You can check out this example on how to override the functionality (Custom Connectors). Basically, once you are done performing your validation, you just have to call on_new_message to actually perform the prediction.

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Socketio payload checking/size limiting

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