✏️ Editing: reputation.py Read Only

import json
import urllib.error
import urllib.request
import urllib.parse
import asyncio
from typing import List
import time
import logging

from defence360agent.utils import retry_on, split_for_chunk
from defence360agent.api.server import API, APIError

logger = logging.getLogger(__name__)

class ReputationAPI(API):
    REQUEST_URL = "/api/reputation/check"
    RESULT_URL = "/api/reputation/result"
    # during stress tests 'Request Entity Too Large' error has been caught,
    # in request size somewhere between 800000 and 900000 bytes
    # max domain length - 255, 800000 / 255 = 3137
    # 3000 is the nearest 'round' number
    CHUNK_SIZE = 3000
    WAIT_BEFORE_RETRY = 5
    WAIT_FOR_RESULT = 1200
    _SOCKET_TIMEOUT = 60

@classmethod
    async def check(cls, domains: List[str]) -> List[dict]:
        logger.info("DomainListRequest domains: %s", domains)
        loop = asyncio.get_event_loop()
        return await loop.run_in_executor(None, cls._check, domains)

@classmethod
    def _check(cls, domains: List[str]) -> List[dict]:
        result_list = []
        for chunk in split_for_chunk(domains, cls.CHUNK_SIZE):
            result = cls._check_chunk(chunk)
            next_chunk = cls._get_result(result["result_id"])
            result_list += next_chunk
        return result_list

@classmethod
    @retry_on(APIError, timeout=WAIT_FOR_RESULT)
    def _check_chunk(cls, chunk) -> dict:
        check_request = urllib.request.Request(
            cls._BASE_URL + cls.REQUEST_URL,
            method="POST",
            headers={"Content-Type": "application/json"},
            data=json.dumps(dict(domains=chunk)).encode(),
        )
        return cls.request(check_request)

@classmethod
    @retry_on(APIError, timeout=WAIT_FOR_RESULT)
    def _get_result(cls, result_id: str):
        data = dict(result_id=result_id)
        url = "{}?{}".format(
            cls._BASE_URL + cls.RESULT_URL, urllib.parse.urlencode(data)
        )
        request = urllib.request.Request(url)
        response = cls.request(request)
        result = response["result"]
        if result is None:
            # time inside sync executor
            time.sleep(cls.WAIT_BEFORE_RETRY)
            raise APIError("Response not ready yet")
        return result

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