mirror of https://github.com/CIRCL/lookyloo
262 lines
8.7 KiB
Python
262 lines
8.7 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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import json
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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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from enum import IntEnum, unique
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from functools import lru_cache
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from io import BufferedIOBase
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from pathlib import Path
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from typing import Any, Dict, List, Optional, Set, Tuple, Union
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from urllib.parse import urljoin, urlparse
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import pkg_resources
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import requests
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from har2tree import CrawledTree, HostNode, URLNode
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from publicsuffix2 import PublicSuffixList, fetch # type: ignore
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from pytaxonomies import Taxonomies
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from requests.exceptions import HTTPError
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from .exceptions import ConfigError, CreateDirectoryException, MissingEnv
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configs: Dict[str, Dict[str, Any]] = {}
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logger = logging.getLogger('Lookyloo - Helpers')
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@unique
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class CaptureStatus(IntEnum):
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UNKNOWN = -1
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QUEUED = 0
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DONE = 1
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ONGOING = 2
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# This method is used in json.dump or json.dumps calls as the default parameter:
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# json.dumps(..., default=dump_to_json)
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def serialize_to_json(obj: Union[Set]) -> Union[List]:
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if isinstance(obj, set):
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return list(obj)
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def get_resources_hashes(har2tree_container: Union[CrawledTree, HostNode, URLNode]) -> Set[str]:
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if isinstance(har2tree_container, CrawledTree):
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urlnodes = har2tree_container.root_hartree.url_tree.traverse()
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elif isinstance(har2tree_container, HostNode):
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urlnodes = har2tree_container.urls
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elif isinstance(har2tree_container, URLNode):
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urlnodes = [har2tree_container]
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else:
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raise Exception(f'har2tree_container cannot be {type(har2tree_container)}')
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all_ressources_hashes: Set[str] = set()
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for urlnode in urlnodes:
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if hasattr(urlnode, 'resources_hashes'):
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all_ressources_hashes.update(urlnode.resources_hashes)
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return all_ressources_hashes
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@lru_cache(64)
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def get_taxonomies():
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return Taxonomies()
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@lru_cache(64)
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def get_public_suffix_list():
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"""Initialize Public Suffix List"""
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try:
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psl_file = fetch()
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psl = PublicSuffixList(psl_file=psl_file)
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except Exception:
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psl = PublicSuffixList()
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return psl
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@lru_cache(64)
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def get_homedir() -> Path:
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if not os.environ.get('LOOKYLOO_HOME'):
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# Try to open a .env file in the home directory if it exists.
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if (Path(__file__).resolve().parent.parent / '.env').exists():
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with (Path(__file__).resolve().parent.parent / '.env').open() as f:
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for line in f:
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key, value = line.strip().split('=', 1)
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if value[0] in ['"', "'"]:
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value = value[1:-1]
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os.environ[key] = value
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if not os.environ.get('LOOKYLOO_HOME'):
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guessed_home = Path(__file__).resolve().parent.parent
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raise MissingEnv(f"LOOKYLOO_HOME is missing. \
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Run the following command (assuming you run the code from the clonned repository):\
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export LOOKYLOO_HOME='{guessed_home}'")
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return Path(os.environ['LOOKYLOO_HOME'])
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@lru_cache(64)
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def get_captures_dir() -> Path:
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capture_dir = get_homedir() / 'scraped'
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safe_create_dir(capture_dir)
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return capture_dir
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@lru_cache(64)
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def get_email_template() -> str:
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with (get_homedir() / 'config' / 'email.tmpl').open() as f:
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return f.read()
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@lru_cache(64)
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def load_configs(path_to_config_files: Optional[Union[str, Path]]=None):
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global configs
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if configs:
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return
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if path_to_config_files:
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if isinstance(path_to_config_files, str):
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config_path = Path(path_to_config_files)
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else:
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config_path = path_to_config_files
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else:
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config_path = get_homedir() / 'config'
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if not config_path.exists():
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raise ConfigError(f'Configuration directory {config_path} does not exists.')
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elif not config_path.is_dir():
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raise ConfigError(f'Configuration directory {config_path} is not a directory.')
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configs = {}
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for path in config_path.glob('*.json'):
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with path.open() as _c:
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configs[path.stem] = json.load(_c)
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@lru_cache(64)
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def get_config(config_type: str, entry: str, quiet: bool=False) -> Any:
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"""Get an entry from the given config_type file. Automatic fallback to the sample file"""
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global configs
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if not configs:
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load_configs()
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if config_type in configs:
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if entry in configs[config_type]:
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return configs[config_type][entry]
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else:
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if not quiet:
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logger.warning(f'Unable to find {entry} in config file.')
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else:
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if not quiet:
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logger.warning(f'No {config_type} config file available.')
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if not quiet:
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logger.warning(f'Falling back on sample config, please initialize the {config_type} config file.')
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with (get_homedir() / 'config' / f'{config_type}.json.sample').open() as _c:
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sample_config = json.load(_c)
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return sample_config[entry]
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def safe_create_dir(to_create: Path) -> None:
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if to_create.exists() and not to_create.is_dir():
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raise CreateDirectoryException(f'The path {to_create} already exists and is not a directory')
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to_create.mkdir(parents=True, exist_ok=True)
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def get_socket_path(name: str) -> str:
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mapping = {
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'cache': Path('cache', 'cache.sock'),
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'indexing': Path('indexing', 'indexing.sock'),
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'storage': Path('storage', 'storage.sock'),
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}
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return str(get_homedir() / mapping[name])
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def get_user_agents(directory: str='user_agents') -> Dict[str, Any]:
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ua_files_path = sorted((get_homedir() / directory).glob('**/*.json'), reverse=True)
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with ua_files_path[0].open() as f:
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return json.load(f)
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def load_known_content(directory: str='known_content') -> Dict[str, Dict[str, Any]]:
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to_return: Dict[str, Dict[str, Any]] = {}
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for known_content_file in (get_homedir() / directory).glob('*.json'):
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with known_content_file.open() as f:
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to_return[known_content_file.stem] = json.load(f)
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return to_return
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def load_cookies(cookie_pseudofile: Optional[Union[BufferedIOBase, str]]=None) -> List[Dict[str, Union[str, bool]]]:
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cookies: List[Dict[str, Union[str, bool]]]
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if cookie_pseudofile:
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if isinstance(cookie_pseudofile, str):
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cookies = json.loads(cookie_pseudofile)
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else:
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cookies = json.load(cookie_pseudofile)
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else:
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if not (get_homedir() / 'cookies.json').exists():
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return []
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with (get_homedir() / 'cookies.json').open() as f:
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cookies = json.load(f)
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to_return: List[Dict[str, Union[str, bool]]] = []
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try:
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for cookie in cookies:
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to_add: Dict[str, Union[str, bool]]
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if 'Host raw' in cookie:
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# Cookie export format for Cookie Quick Manager
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u = urlparse(cookie['Host raw']).netloc.split(':', 1)[0] # type: ignore
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to_add = {'path': cookie['Path raw'],
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'name': cookie['Name raw'],
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'httpOnly': cookie['HTTP only raw'] == 'true',
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'secure': cookie['Send for'] == 'Encrypted connections only',
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'expires': (datetime.now() + timedelta(days=10)).strftime('%Y-%m-%dT%H:%M:%S') + 'Z',
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'domain': u,
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'value': cookie['Content raw']
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}
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else:
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# Cookie from lookyloo/splash
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to_add = cookie
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to_return.append(to_add)
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except Exception as e:
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print(f'Unable to load the cookie file: {e}')
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return to_return
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def uniq_domains(uniq_urls):
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domains = set()
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for url in uniq_urls:
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splitted = urlparse(url)
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domains.add(splitted.hostname)
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return domains
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def try_make_file(filename: Path):
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try:
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filename.touch(exist_ok=False)
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return True
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except FileExistsError:
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return False
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@lru_cache(64)
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def get_useragent_for_requests():
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version = pkg_resources.get_distribution('lookyloo').version
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return f'Lookyloo / {version}'
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@lru_cache(64)
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def get_splash_url() -> str:
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if os.environ.get('SPLASH_URL_DOCKER'):
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# In order to have a working default for the docker image, it is easier to use an environment variable
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return os.environ['SPLASH_URL_DOCKER']
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else:
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return get_config('generic', 'splash_url')
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def splash_status() -> Tuple[bool, str]:
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try:
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splash_status = requests.get(urljoin(get_splash_url(), '_ping'))
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splash_status.raise_for_status()
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json_status = splash_status.json()
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if json_status['status'] == 'ok':
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return True, 'Splash is up'
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else:
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return False, str(json_status)
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except HTTPError as http_err:
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return False, f'HTTP error occurred: {http_err}'
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except Exception as err:
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return False, f'Other error occurred: {err}'
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