lookyloo/bin/background_processing.py

141 lines
6.5 KiB
Python
Executable File

#!/usr/bin/env python3
import json
import time
import logging
import logging.config
from collections import Counter
from datetime import date, timedelta
from typing import Any, Dict, Optional
from lookyloo.lookyloo import Lookyloo, CaptureStatusCore, CaptureStatusPy
from lookyloo.default import AbstractManager, get_config, get_homedir, safe_create_dir
from lookyloo.helpers import ParsedUserAgent, serialize_to_json
logging.config.dictConfig(get_config('logging'))
class Processing(AbstractManager):
def __init__(self, loglevel: Optional[int]=None):
super().__init__(loglevel)
self.script_name = 'processing'
self.lookyloo = Lookyloo()
self.use_own_ua = get_config('generic', 'use_user_agents_users')
def _to_run_forever(self):
if self.use_own_ua:
self._build_ua_file()
self._retry_failed_enqueue()
def _build_ua_file(self):
'''Build a file in a format compatible with the capture page'''
yesterday = (date.today() - timedelta(days=1))
self_generated_ua_file_path = get_homedir() / 'own_user_agents' / str(yesterday.year) / f'{yesterday.month:02}'
safe_create_dir(self_generated_ua_file_path)
self_generated_ua_file = self_generated_ua_file_path / f'{yesterday.isoformat()}.json'
if self_generated_ua_file.exists():
self.logger.debug(f'User-agent file for {yesterday} already exists.')
return
self.logger.info(f'Generating user-agent file for {yesterday}')
entries = self.lookyloo.redis.zrevrange(f'user_agents|{yesterday.isoformat()}', 0, -1)
if not entries:
self.logger.info(f'No User-agent file for {yesterday} to generate.')
return
to_store: Dict[str, Any] = {'by_frequency': []}
uas = Counter([entry.split('|', 1)[1] for entry in entries])
for ua, _ in uas.most_common():
parsed_ua = ParsedUserAgent(ua)
if not parsed_ua.platform or not parsed_ua.browser:
continue
platform_key = parsed_ua.platform
if parsed_ua.platform_version:
platform_key = f'{platform_key} {parsed_ua.platform_version}'
browser_key = parsed_ua.browser
if parsed_ua.version:
browser_key = f'{browser_key} {parsed_ua.version}'
if platform_key not in to_store:
to_store[platform_key] = {}
if browser_key not in to_store[platform_key]:
to_store[platform_key][browser_key] = set()
to_store[platform_key][browser_key].add(parsed_ua.string)
to_store['by_frequency'].append({'os': platform_key,
'browser': browser_key,
'useragent': parsed_ua.string})
with self_generated_ua_file.open('w') as f:
json.dump(to_store, f, indent=2, default=serialize_to_json)
# Remove the UA / IP mapping.
self.lookyloo.redis.delete(f'user_agents|{yesterday.isoformat()}')
self.logger.info(f'User-agent file for {yesterday} generated.')
def _retry_failed_enqueue(self):
'''If enqueuing failed, the settings are added, with a UUID in the 'to_capture key', and they have a UUID'''
for uuid in self.lookyloo.redis.zrevrangebyscore('to_capture', 'Inf', '-Inf'):
try_reenqueue = False
if self.lookyloo.redis.hexists(uuid, 'not_queued'):
# The capture is marked as not queued
try_reenqueue = True
elif self.lookyloo.lacus.get_capture_status(uuid) in [CaptureStatusPy.UNKNOWN, CaptureStatusCore.UNKNOWN]:
# The capture is unknown on lacus side. It might be a race condition.
# Let's retry a few times.
retry = 3
while retry > 0:
if self.lookyloo.lacus.get_capture_status(uuid) not in [CaptureStatusPy.UNKNOWN, CaptureStatusCore.UNKNOWN]:
# Was a race condition, the UUID is being processed by Lacus
self.logger.info(f'UUID {uuid} was only temporary unknown')
break
retry -= 1
time.sleep(3)
else:
# UUID is still unknown
self.logger.info(f'UUID {uuid} is still unknown')
try_reenqueue = True
if not try_reenqueue:
continue
self.logger.info(f'Found a non-queued capture ({uuid}), retrying now.')
# This capture couldn't be queued and we created the uuid locally
query = self.lookyloo.redis.hgetall(uuid)
try:
new_uuid = self.lookyloo.lacus.enqueue(
url=query.get('url', None),
document_name=query.get('document_name', None),
document=query.get('document', None),
# depth=query.get('depth', 0),
browser=query.get('browser', None),
device_name=query.get('device_name', None),
user_agent=query.get('user_agent', None),
proxy=query.get('proxy', None),
general_timeout_in_sec=query.get('general_timeout_in_sec', None),
cookies=query.get('cookies', None),
headers=query.get('headers', None),
http_credentials=query.get('http_credentials', None),
viewport=query.get('viewport', None),
referer=query.get('referer', None),
rendered_hostname_only=query.get('rendered_hostname_only', True),
# force=query.get('force', False),
# recapture_interval=query.get('recapture_interval', 300),
priority=query.get('priority', None),
uuid=uuid
)
if new_uuid != uuid:
# somehow, between the check and queuing, the UUID isn't UNKNOWN anymore, just checking that
self.logger.warning(f'Had to change the capture UUID (duplicate). Old: {uuid} / New: {new_uuid}')
except Exception as e:
self.logger.warning(f'Still unable to enqueue capture: {e}')
break
else:
self.lookyloo.redis.hdel(uuid, 'not_queued')
self.logger.info(f'{uuid} enqueued.')
def main():
p = Processing()
p.run(sleep_in_sec=30)
if __name__ == '__main__':
main()