mirror of https://github.com/CIRCL/lookyloo
111 lines
4.8 KiB
Python
Executable File
111 lines
4.8 KiB
Python
Executable File
#!/usr/bin/env python3
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import logging
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import os
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from datetime import datetime, timedelta
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import shutil
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from lookyloo.default import AbstractManager
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from lookyloo.exceptions import MissingUUID, NoValidHarFile
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from lookyloo.lookyloo import Lookyloo
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logging.basicConfig(format='%(asctime)s %(name)s %(levelname)s:%(message)s',
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level=logging.INFO)
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class BackgroundIndexer(AbstractManager):
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def __init__(self, loglevel: int=logging.INFO):
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super().__init__(loglevel)
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self.lookyloo = Lookyloo()
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self.script_name = 'background_indexer'
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# make sure discarded captures dir exists
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self.discarded_captures_dir = self.lookyloo.capture_dir.parent / 'discarded_captures'
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self.discarded_captures_dir.mkdir(parents=True, exist_ok=True)
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def _to_run_forever(self):
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self._build_missing_pickles()
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self._check_indexes()
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self.lookyloo.update_tree_cache_info(os.getpid(), self.script_name)
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def _build_missing_pickles(self):
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for uuid_path in sorted(self.lookyloo.capture_dir.glob('**/uuid'), reverse=True):
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if ((uuid_path.parent / 'tree.pickle').exists()
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or not list(uuid_path.parent.rglob('*.har'))
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or not list(uuid_path.parent.rglob('*.har.gz'))):
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continue
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lock_file = uuid_path.parent / 'lock'
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if lock_file.exists():
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try:
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with lock_file.open('r') as f:
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lock_ts = datetime.fromisoformat(f.read())
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if lock_ts < datetime.now() - timedelta(minutes=5):
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# Clear old locks. They shouldn't be there, but it's gonna happen.
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self.logger.info(f'Old lock found {lock_file}, removing it.')
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lock_file.unlink(missing_ok=True)
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except Exception as e:
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self.logger.info(f'Error while reading lock {lock_file}: {e}')
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continue
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with uuid_path.open() as f:
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uuid = f.read()
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if not self.lookyloo.redis.hexists('lookup_dirs', uuid):
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# The capture with this UUID exists, but it is for some reason missing in lookup_dirs
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self.lookyloo.redis.hset('lookup_dirs', uuid, str(uuid_path.parent))
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try:
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self.logger.info(f'Build pickle for {uuid}: {uuid_path.parent.name}')
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self.lookyloo.get_crawled_tree(uuid)
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self.lookyloo.trigger_modules(uuid, auto_trigger=True)
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self.logger.info(f'Pickle for {uuid} build.')
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except MissingUUID:
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self.logger.warning(f'Unable to find {uuid}. That should not happen.')
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except NoValidHarFile as e:
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self.logger.critical(f'There are no HAR files in the capture {uuid}: {uuid_path.parent.name} - {e}')
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except Exception as e:
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self.logger.critical(f'Unable to build pickle for {uuid}: {uuid_path.parent.name} - {e}')
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# The capture is not working, moving it away.
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self.lookyloo.redis.hdel('lookup_dirs', uuid)
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shutil.move(str(uuid_path.parent), str(self.discarded_captures_dir / uuid_path.parent.name))
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def _check_indexes(self):
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index_redis = self.lookyloo.indexing.redis
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for cache in self.lookyloo.sorted_capture_cache(cached_captures_only=False):
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if self.lookyloo.is_public_instance and cache.no_index:
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# Capture unindexed
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continue
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p = index_redis.pipeline()
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p.sismember('indexed_urls', cache.uuid)
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p.sismember('indexed_body_hashes', cache.uuid)
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p.sismember('indexed_cookies', cache.uuid)
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indexed = p.execute()
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if all(indexed):
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continue
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try:
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ct = self.lookyloo.get_crawled_tree(cache.uuid)
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except NoValidHarFile:
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self.logger.warning(f'Broken pickle for {cache.uuid}')
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self.lookyloo.remove_pickle(cache.uuid)
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continue
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if not indexed[0]:
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self.logger.info(f'Indexing urls for {cache.uuid}')
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self.lookyloo.indexing.index_url_capture(ct)
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if not indexed[1]:
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self.logger.info(f'Indexing resources for {cache.uuid}')
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self.lookyloo.indexing.index_body_hashes_capture(ct)
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if not indexed[2]:
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self.logger.info(f'Indexing cookies for {cache.uuid}')
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self.lookyloo.indexing.index_cookies_capture(ct)
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# NOTE: categories aren't taken in account here, should be fixed(?)
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# see indexing.index_categories_capture(capture_uuid, categories)
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def main():
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i = BackgroundIndexer()
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i.run(sleep_in_sec=60)
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if __name__ == '__main__':
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main()
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