mirror of https://github.com/CIRCL/lookyloo
1060 lines
49 KiB
Python
1060 lines
49 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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import os
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import base64
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from collections import defaultdict, Counter
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from datetime import datetime, date, timedelta
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from email.message import EmailMessage
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from io import BufferedIOBase, BytesIO
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import ipaddress
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import json
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import logging
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from pathlib import Path
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import pickle
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import smtplib
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import socket
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from typing import Union, Dict, List, Tuple, Optional, Any, MutableMapping, Set, Iterable
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from urllib.parse import urlsplit
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from uuid import uuid4
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from zipfile import ZipFile
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import operator
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import dns.resolver
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import dns.rdatatype
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from defang import refang # type: ignore
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from har2tree import CrawledTree, Har2TreeError, HarFile, HostNode, URLNode
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from redis import Redis
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from scrapysplashwrapper import crawl
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from werkzeug.useragents import UserAgent
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from .exceptions import NoValidHarFile, MissingUUID
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from .helpers import (get_homedir, get_socket_path, load_cookies, get_config,
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safe_create_dir, get_email_template, load_pickle_tree,
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remove_pickle_tree, get_resources_hashes, get_taxonomies, uniq_domains)
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from .modules import VirusTotal, SaneJavaScript, PhishingInitiative
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from .context import Context
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from .indexing import Indexing
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class Lookyloo():
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def __init__(self) -> None:
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self.logger = logging.getLogger(f'{self.__class__.__name__}')
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self.logger.setLevel(get_config('generic', 'loglevel'))
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self.indexing = Indexing()
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self.is_public_instance = get_config('generic', 'public_instance')
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self.taxonomies = get_taxonomies()
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self.redis: Redis = Redis(unix_socket_path=get_socket_path('cache'), decode_responses=True)
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self.capture_dir: Path = get_homedir() / 'scraped'
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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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self.splash_url: str = os.environ['SPLASH_URL_DOCKER']
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else:
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self.splash_url = get_config('generic', 'splash_url')
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self.only_global_lookups: bool = get_config('generic', 'only_global_lookups')
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safe_create_dir(self.capture_dir)
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# Initialize 3rd party components
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self.pi = PhishingInitiative(get_config('modules', 'PhishingInitiative'))
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if not self.pi.available:
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self.logger.warning('Unable to setup the PhishingInitiative module')
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self.vt = VirusTotal(get_config('modules', 'VirusTotal'))
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if not self.vt.available:
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self.logger.warning('Unable to setup the VirusTotal module')
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self.sanejs = SaneJavaScript(get_config('modules', 'SaneJS'))
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if not self.sanejs.available:
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self.logger.warning('Unable to setup the SaneJS module')
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if hasattr(self, 'sanejs') and self.sanejs.available:
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self.context = Context(self.sanejs)
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else:
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self.context = Context()
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if not self.redis.exists('cache_loaded'):
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self._init_existing_dumps()
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def cache_user_agents(self, user_agent: str, remote_ip: str) -> None:
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today = date.today().isoformat()
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self.redis.zincrby(f'user_agents|{today}', 1, f'{remote_ip}|{user_agent}')
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def build_ua_file(self) -> None:
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yesterday = (date.today() - timedelta(days=1))
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self_generated_ua_file_path = get_homedir() / 'own_user_agents' / str(yesterday.year) / f'{yesterday.month:02}'
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safe_create_dir(self_generated_ua_file_path)
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self_generated_ua_file = self_generated_ua_file_path / f'{yesterday.isoformat()}.json'
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if self_generated_ua_file.exists():
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return
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entries = self.redis.zrevrange(f'user_agents|{yesterday.isoformat()}', 0, -1)
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if not entries:
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return
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to_store: Dict[str, Any] = {'by_frequency': []}
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uas = Counter([entry.split('|', 1)[1] for entry in entries])
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for ua, count in uas.most_common():
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parsed_ua = UserAgent(ua)
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if not parsed_ua.platform or not parsed_ua.browser:
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continue
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if parsed_ua.platform not in to_store:
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to_store[parsed_ua.platform] = {}
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if f'{parsed_ua.browser} {parsed_ua.version}' not in to_store[parsed_ua.platform]:
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to_store[parsed_ua.platform][f'{parsed_ua.browser} {parsed_ua.version}'] = []
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to_store[parsed_ua.platform][f'{parsed_ua.browser} {parsed_ua.version}'].append(parsed_ua.string)
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to_store['by_frequency'].append({'os': parsed_ua.platform,
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'browser': f'{parsed_ua.browser} {parsed_ua.version}',
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'useragent': parsed_ua.string})
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with self_generated_ua_file.open('w') as f:
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json.dump(to_store, f, indent=2)
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def cache_tree(self, capture_uuid: str) -> None:
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'''Generate the pickle, add capture in the indexes'''
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capture_dir = self.lookup_capture_dir(capture_uuid)
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if not capture_dir:
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raise MissingUUID(f'Unable to find UUID {capture_uuid} in the cache')
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with open((capture_dir / 'uuid'), 'r') as f:
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uuid = f.read()
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har_files = sorted(capture_dir.glob('*.har'))
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# NOTE: We only index the public captures
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index = True
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try:
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ct = CrawledTree(har_files, uuid)
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self.resolve_dns(ct)
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# getting the cache triggers an update of the said cache. We want it there.
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cache = self.capture_cache(capture_uuid)
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if self.is_public_instance:
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if cache.get('no_index') is not None:
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index = False
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if index:
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self.indexing.index_cookies_capture(ct)
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self.indexing.index_body_hashes_capture(ct)
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self.indexing.index_url_capture(ct)
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categories = list(self.categories_capture(capture_uuid).keys())
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self.indexing.index_categories_capture(capture_uuid, categories)
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except Har2TreeError as e:
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raise NoValidHarFile(e.message)
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with (capture_dir / 'tree.pickle').open('wb') as _p:
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pickle.dump(ct, _p)
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def _build_cname_chain(self, known_cnames: Dict[str, Optional[str]], hostname) -> List[str]:
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cnames: List[str] = []
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to_search = hostname
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while True:
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if known_cnames.get(to_search) is None:
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break
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# At this point, known_cnames[to_search] must exist and be a str
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cnames.append(known_cnames[to_search]) # type: ignore
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to_search = known_cnames[to_search]
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return cnames
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def resolve_dns(self, ct: CrawledTree):
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cnames_path = ct.root_hartree.har.path.parent / 'cnames.json'
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ips_path = ct.root_hartree.har.path.parent / 'ips.json'
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host_cnames: Dict[str, Optional[str]] = {}
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if cnames_path.exists():
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with cnames_path.open() as f:
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host_cnames = json.load(f)
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host_ips: Dict[str, List[str]] = {}
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if ips_path.exists():
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with ips_path.open() as f:
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host_ips = json.load(f)
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for node in ct.root_hartree.hostname_tree.traverse():
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if node.name not in host_cnames or node.name not in host_ips:
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# Resolve and cache
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try:
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response = dns.resolver.resolve(node.name, search=True)
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for answer in response.response.answer:
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if answer.rdtype == dns.rdatatype.RdataType.CNAME:
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host_cnames[str(answer.name).rstrip('.')] = str(answer[0].target).rstrip('.')
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else:
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host_cnames[str(answer.name).rstrip('.')] = None
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if answer.rdtype in [dns.rdatatype.RdataType.A, dns.rdatatype.RdataType.AAAA]:
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host_ips[str(answer.name).rstrip('.')] = list(set(str(b) for b in answer))
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except Exception:
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host_cnames[node.name] = None
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host_ips[node.name] = []
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cnames = self._build_cname_chain(host_cnames, node.name)
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if cnames:
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node.add_feature('cname', cnames)
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if cnames[-1] in host_ips:
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node.add_feature('resolved_ips', host_ips[cnames[-1]])
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elif node.name in host_ips:
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node.add_feature('resolved_ips', host_ips[node.name])
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with cnames_path.open('w') as f:
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json.dump(host_cnames, f)
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with ips_path.open('w') as f:
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json.dump(host_ips, f)
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return ct
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def get_crawled_tree(self, capture_uuid: str) -> CrawledTree:
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capture_dir = self.lookup_capture_dir(capture_uuid)
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if not capture_dir:
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raise MissingUUID(f'Unable to find UUID {capture_uuid} in the cache')
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ct = load_pickle_tree(capture_dir)
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if not ct:
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self.cache_tree(capture_uuid)
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ct = load_pickle_tree(capture_dir)
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if not ct:
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raise NoValidHarFile(f'Unable to get tree from {capture_dir}')
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return ct
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def add_context(self, capture_uuid: str, urlnode_uuid: str, ressource_hash: str, legitimate: bool, malicious: bool, details: Dict[str, Dict[str, str]]):
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if malicious:
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self.context.add_malicious(ressource_hash, details['malicious'])
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if legitimate:
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self.context.add_legitimate(ressource_hash, details['legitimate'])
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def add_to_legitimate(self, capture_uuid: str, hostnode_uuid: Optional[str]=None, urlnode_uuid: Optional[str]=None):
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ct = self.get_crawled_tree(capture_uuid)
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self.context.mark_as_legitimate(ct, hostnode_uuid, urlnode_uuid)
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def load_tree(self, capture_uuid: str) -> Tuple[str, str, str, str, Dict[str, str]]:
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capture_dir = self.lookup_capture_dir(capture_uuid)
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if not capture_dir:
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raise MissingUUID(f'Unable to find UUID {capture_uuid} in the cache')
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meta = {}
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if (capture_dir / 'meta').exists():
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with open((capture_dir / 'meta'), 'r') as f:
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meta = json.load(f)
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ct = self.get_crawled_tree(capture_uuid)
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ct = self.context.contextualize_tree(ct)
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return ct.to_json(), ct.start_time.isoformat(), ct.user_agent, ct.root_url, meta
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def remove_pickle(self, capture_uuid: str) -> None:
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capture_dir = self.lookup_capture_dir(capture_uuid)
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if not capture_dir:
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raise MissingUUID(f'Unable to find UUID {capture_uuid} in the cache')
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remove_pickle_tree(capture_dir)
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def rebuild_cache(self) -> None:
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self.redis.flushdb()
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self._init_existing_dumps()
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def rebuild_all(self) -> None:
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for capture_dir in self.capture_dirs:
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remove_pickle_tree(capture_dir)
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self.rebuild_cache()
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def get_urlnode_from_tree(self, capture_uuid: str, node_uuid: str) -> URLNode:
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capture_dir = self.lookup_capture_dir(capture_uuid)
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if not capture_dir:
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raise MissingUUID(f'Unable to find UUID {capture_uuid} in the cache')
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ct = load_pickle_tree(capture_dir)
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if not ct:
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raise MissingUUID(f'Unable to find UUID {node_uuid} in {capture_dir}')
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return ct.root_hartree.get_url_node_by_uuid(node_uuid)
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def get_hostnode_from_tree(self, capture_uuid: str, node_uuid: str) -> HostNode:
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capture_dir = self.lookup_capture_dir(capture_uuid)
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if not capture_dir:
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raise MissingUUID(f'Unable to find UUID {capture_uuid} in the cache')
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ct = load_pickle_tree(capture_dir)
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if not ct:
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raise MissingUUID(f'Unable to find UUID {node_uuid} in {capture_dir}')
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return ct.root_hartree.get_host_node_by_uuid(node_uuid)
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def get_statistics(self, capture_uuid: str) -> Dict[str, Any]:
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capture_dir = self.lookup_capture_dir(capture_uuid)
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if not capture_dir:
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raise MissingUUID(f'Unable to find UUID {capture_uuid} in the cache')
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ct = load_pickle_tree(capture_dir)
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if not ct:
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self.logger.warning(f'Unable to trigger the modules unless the tree ({capture_dir}) is cached.')
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return {}
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return ct.root_hartree.stats
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def categories_capture(self, capture_uuid: str) -> Dict[str, Any]:
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capture_dir = self.lookup_capture_dir(capture_uuid)
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if not capture_dir:
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raise MissingUUID(f'Unable to find UUID {capture_uuid} in the cache')
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# get existing categories if possible
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if (capture_dir / 'categories').exists():
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with (capture_dir / 'categories').open() as f:
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current_categories = [line.strip() for line in f.readlines()]
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return {e: self.taxonomies.revert_machinetag(e) for e in current_categories}
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return {}
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def categorize_capture(self, capture_uuid: str, category: str) -> None:
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if not get_config('generic', 'enable_categorization'):
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return
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# Make sure the category is mappable to a taxonomy.
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self.taxonomies.revert_machinetag(category)
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capture_dir = self.lookup_capture_dir(capture_uuid)
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if not capture_dir:
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raise MissingUUID(f'Unable to find UUID {capture_uuid} in the cache')
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# get existing categories if possible
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if (capture_dir / 'categories').exists():
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with (capture_dir / 'categories').open() as f:
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current_categories = set(line.strip() for line in f.readlines())
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else:
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current_categories = set()
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current_categories.add(category)
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with (capture_dir / 'categories').open('w') as f:
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f.writelines(f'{t}\n' for t in current_categories)
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def uncategorize_capture(self, capture_uuid: str, category: str) -> None:
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if not get_config('generic', 'enable_categorization'):
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return
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capture_dir = self.lookup_capture_dir(capture_uuid)
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if not capture_dir:
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raise MissingUUID(f'Unable to find UUID {capture_uuid} in the cache')
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# get existing categories if possible
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if (capture_dir / 'categories').exists():
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with (capture_dir / 'categories').open() as f:
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current_categories = set(line.strip() for line in f.readlines())
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else:
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current_categories = set()
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current_categories.remove(category)
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with (capture_dir / 'categories').open('w') as f:
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f.writelines(f'{t}\n' for t in current_categories)
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def trigger_modules(self, capture_uuid: str, force: bool=False) -> None:
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capture_dir = self.lookup_capture_dir(capture_uuid)
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if not capture_dir:
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raise MissingUUID(f'Unable to find UUID {capture_uuid} in the cache')
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ct = load_pickle_tree(capture_dir)
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if not ct:
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self.logger.warning(f'Unable to trigger the modules unless the tree ({capture_dir}) is cached.')
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return
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if hasattr(self, 'pi') and self.pi.available:
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if ct.redirects:
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for redirect in ct.redirects:
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self.pi.url_lookup(redirect, force)
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else:
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self.pi.url_lookup(ct.root_hartree.har.root_url, force)
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if hasattr(self, 'vt') and self.vt.available:
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if ct.redirects:
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for redirect in ct.redirects:
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self.vt.url_lookup(redirect, force)
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else:
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self.vt.url_lookup(ct.root_hartree.har.root_url, force)
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def get_modules_responses(self, capture_uuid: str) -> Optional[Dict[str, Any]]:
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capture_dir = self.lookup_capture_dir(capture_uuid)
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if not capture_dir:
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raise MissingUUID(f'Unable to find UUID {capture_uuid} in the cache')
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ct = load_pickle_tree(capture_dir)
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if not ct:
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self.logger.warning(f'Unable to get the modules responses unless the tree ({capture_dir}) is cached.')
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return None
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to_return: Dict[str, Any] = {}
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if hasattr(self, 'vt') and self.vt.available:
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to_return['vt'] = {}
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if ct.redirects:
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for redirect in ct.redirects:
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to_return['vt'][redirect] = self.vt.get_url_lookup(redirect)
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else:
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to_return['vt'][ct.root_hartree.har.root_url] = self.vt.get_url_lookup(ct.root_hartree.har.root_url)
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if hasattr(self, 'pi') and self.pi.available:
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to_return['pi'] = {}
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if ct.redirects:
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for redirect in ct.redirects:
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to_return['pi'][redirect] = self.pi.get_url_lookup(redirect)
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else:
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to_return['pi'][ct.root_hartree.har.root_url] = self.pi.get_url_lookup(ct.root_hartree.har.root_url)
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return to_return
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def _set_capture_cache(self, capture_dir: Path, force: bool=False, redis_pipeline: Optional[Redis]=None) -> None:
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if force or not self.redis.exists(str(capture_dir)):
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# (re)build cache
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pass
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else:
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return
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with (capture_dir / 'uuid').open() as f:
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uuid = f.read().strip()
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har_files = sorted(capture_dir.glob('*.har'))
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error_cache: Dict[str, str] = {}
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if (capture_dir / 'error.txt').exists():
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# Something went wrong
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with (capture_dir / 'error.txt').open() as _error:
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content = _error.read()
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try:
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error_to_cache = json.loads(content)
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if isinstance(error_to_cache, dict) and error_to_cache.get('details'):
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error_to_cache = error_to_cache.get('details')
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except json.decoder.JSONDecodeError:
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# old format
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error_to_cache = content
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error_cache['error'] = f'The capture {capture_dir.name} has an error: {error_to_cache}'
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fatal_error = False
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if har_files:
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try:
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har = HarFile(har_files[0], uuid)
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except Har2TreeError as e:
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error_cache['error'] = e.message
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fatal_error = True
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else:
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error_cache['error'] = f'No har files in {capture_dir.name}'
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fatal_error = True
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if (capture_dir / 'categories').exists():
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with (capture_dir / 'categories').open() as _categories:
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categories = [c.strip() for c in _categories.readlines()]
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else:
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categories = []
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if not redis_pipeline:
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p = self.redis.pipeline()
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else:
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p = redis_pipeline
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p.hset('lookup_dirs', uuid, str(capture_dir))
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if error_cache:
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if 'HTTP Error' not in error_cache['error']:
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self.logger.warning(error_cache['error'])
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p.hmset(str(capture_dir), error_cache)
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if not fatal_error:
|
|
redirects = har.initial_redirects
|
|
incomplete_redirects = False
|
|
if redirects and har.need_tree_redirects:
|
|
# load tree from disk, get redirects
|
|
ct = load_pickle_tree(capture_dir)
|
|
if ct:
|
|
redirects = ct.redirects
|
|
else:
|
|
# Pickle not available
|
|
incomplete_redirects = True
|
|
|
|
cache: Dict[str, Union[str, int]] = {'uuid': uuid,
|
|
'title': har.initial_title,
|
|
'timestamp': har.initial_start_time,
|
|
'url': har.root_url,
|
|
'redirects': json.dumps(redirects),
|
|
'categories': json.dumps(categories),
|
|
'capture_dir': str(capture_dir),
|
|
'incomplete_redirects': 1 if incomplete_redirects else 0}
|
|
if (capture_dir / 'no_index').exists(): # If the folders claims anonymity
|
|
cache['no_index'] = 1
|
|
|
|
p.hmset(str(capture_dir), cache)
|
|
if not redis_pipeline:
|
|
p.execute()
|
|
|
|
def hide_capture(self, capture_uuid: str) -> None:
|
|
"""Add the capture in the hidden pool (not shown on the front page)
|
|
NOTE: it won't remove the correlations until they are rebuilt.
|
|
"""
|
|
capture_dir = self.lookup_capture_dir(capture_uuid)
|
|
if not capture_dir:
|
|
raise MissingUUID(f'Unable to find UUID {capture_uuid} in the cache')
|
|
self.redis.hset(str(capture_dir), 'no_index', 1)
|
|
(capture_dir / 'no_index').touch()
|
|
|
|
@property
|
|
def capture_uuids(self):
|
|
return self.redis.hkeys('lookup_dirs')
|
|
|
|
@property
|
|
def sorted_cache(self):
|
|
all_cache: List[Dict[str, Union[str, Path]]] = []
|
|
p = self.redis.pipeline()
|
|
for directory in self.redis.hmget('lookup_dirs', *self.capture_uuids):
|
|
if directory:
|
|
p.hgetall(directory)
|
|
all_cache = []
|
|
for c in p.execute():
|
|
if not c:
|
|
continue
|
|
if all(key in c.keys() for key in ['uuid', 'title', 'timestamp', 'url', 'redirects', 'capture_dir']):
|
|
c['redirects'] = json.loads(c['redirects'])
|
|
c['capture_dir'] = Path(c['capture_dir'])
|
|
elif 'error' in c:
|
|
pass
|
|
else:
|
|
continue
|
|
if 'timestamp' not in c:
|
|
continue
|
|
if 'categories' in c:
|
|
c['categories'] = json.loads(c['categories'])
|
|
all_cache.append(c)
|
|
return sorted(all_cache, key=operator.itemgetter('timestamp'), reverse=True)
|
|
|
|
def capture_cache(self, capture_uuid: str) -> Dict[str, Union[str, Path, List]]:
|
|
capture_dir = self.lookup_capture_dir(capture_uuid)
|
|
if not capture_dir:
|
|
raise MissingUUID(f'Unable to find UUID {capture_uuid} in the cache')
|
|
if self.redis.hget(str(capture_dir), 'incomplete_redirects') == '1':
|
|
# try to rebuild the cache
|
|
self._set_capture_cache(capture_dir, force=True)
|
|
cached: Dict[str, Union[str, Path, List]] = self.redis.hgetall(str(capture_dir)) # type: ignore
|
|
if all(key in cached.keys() for key in ['uuid', 'title', 'timestamp', 'url', 'redirects', 'capture_dir']):
|
|
cached['redirects'] = json.loads(cached['redirects']) # type: ignore
|
|
cached['capture_dir'] = Path(cached['capture_dir']) # type: ignore
|
|
if 'categories' in cached:
|
|
cached['categories'] = json.loads(cached['categories']) # type: ignore
|
|
return cached
|
|
elif 'error' in cached:
|
|
return cached
|
|
else:
|
|
self.logger.warning(f'Cache ({capture_dir}) is invalid: {json.dumps(cached, indent=2)}')
|
|
return {}
|
|
|
|
def _init_existing_dumps(self) -> None:
|
|
p = self.redis.pipeline()
|
|
for capture_dir in self.capture_dirs:
|
|
if capture_dir.exists():
|
|
self._set_capture_cache(capture_dir, redis_pipeline=p)
|
|
p.set('cache_loaded', 1)
|
|
p.execute()
|
|
|
|
@property
|
|
def capture_dirs(self) -> List[Path]:
|
|
for capture_dir in self.capture_dir.iterdir():
|
|
if capture_dir.is_dir() and not capture_dir.iterdir():
|
|
# Cleanup self.capture_dir of failed runs.
|
|
capture_dir.rmdir()
|
|
if not (capture_dir / 'uuid').exists():
|
|
# Create uuid if missing
|
|
with (capture_dir / 'uuid').open('w') as f:
|
|
f.write(str(uuid4()))
|
|
return sorted(self.capture_dir.iterdir(), reverse=True)
|
|
|
|
def lookup_capture_dir(self, capture_uuid: str) -> Union[Path, None]:
|
|
capture_dir: str = self.redis.hget('lookup_dirs', capture_uuid) # type: ignore
|
|
if capture_dir:
|
|
return Path(capture_dir)
|
|
return None
|
|
|
|
def enqueue_capture(self, query: MutableMapping[str, Any]) -> str:
|
|
perma_uuid = str(uuid4())
|
|
p = self.redis.pipeline()
|
|
for key, value in query.items():
|
|
if isinstance(value, bool):
|
|
# Yes, empty string because that's False.
|
|
query[key] = 1 if value else ''
|
|
p.hmset(perma_uuid, query)
|
|
p.sadd('to_capture', perma_uuid)
|
|
p.execute()
|
|
return perma_uuid
|
|
|
|
def process_capture_queue(self) -> Union[bool, None]:
|
|
uuid = self.redis.spop('to_capture')
|
|
if not uuid:
|
|
return None
|
|
to_capture: Dict[str, Union[str, int, float]] = self.redis.hgetall(uuid) # type: ignore
|
|
self.redis.delete(uuid)
|
|
to_capture['perma_uuid'] = uuid
|
|
if self.capture(**to_capture): # type: ignore
|
|
self.logger.info(f'Processed {to_capture["url"]}')
|
|
return True
|
|
return False
|
|
|
|
def send_mail(self, capture_uuid: str, email: str='', comment: str='') -> None:
|
|
if not get_config('generic', 'enable_mail_notification'):
|
|
return
|
|
|
|
redirects = ''
|
|
initial_url = ''
|
|
cache = self.capture_cache(capture_uuid)
|
|
if cache:
|
|
initial_url = cache['url'] # type: ignore
|
|
if 'redirects' in cache and cache['redirects']:
|
|
redirects = "Redirects:\n"
|
|
redirects += '\n'.join(cache['redirects']) # type: ignore
|
|
else:
|
|
redirects = "No redirects."
|
|
|
|
email_config = get_config('generic', 'email')
|
|
msg = EmailMessage()
|
|
msg['From'] = email_config['from']
|
|
if email:
|
|
msg['Reply-To'] = email
|
|
msg['To'] = email_config['to']
|
|
msg['Subject'] = email_config['subject']
|
|
body = get_email_template()
|
|
body = body.format(
|
|
recipient=msg['To'].addresses[0].display_name,
|
|
domain=email_config['domain'],
|
|
uuid=capture_uuid,
|
|
initial_url=initial_url,
|
|
redirects=redirects,
|
|
comment=comment,
|
|
sender=msg['From'].addresses[0].display_name,
|
|
)
|
|
msg.set_content(body)
|
|
try:
|
|
s = smtplib.SMTP(email_config['smtp_host'], email_config['smtp_port'])
|
|
s.send_message(msg)
|
|
s.quit()
|
|
except Exception as e:
|
|
self.logger.exception(e)
|
|
self.logger.warning(msg.as_string())
|
|
|
|
def _ensure_meta(self, capture_dir: Path, tree: CrawledTree) -> None:
|
|
metafile = capture_dir / 'meta'
|
|
if metafile.exists():
|
|
return
|
|
ua = UserAgent(tree.root_hartree.user_agent)
|
|
to_dump = {}
|
|
if ua.platform:
|
|
to_dump['os'] = ua.platform
|
|
if ua.browser:
|
|
if ua.version:
|
|
to_dump['browser'] = f'{ua.browser} {ua.version}'
|
|
else:
|
|
to_dump['browser'] = ua.browser
|
|
if ua.language:
|
|
to_dump['language'] = ua.language
|
|
|
|
if not to_dump:
|
|
# UA not recognized
|
|
self.logger.info(f'Unable to recognize the User agent: {ua}')
|
|
to_dump['user_agent'] = ua.string
|
|
with metafile.open('w') as f:
|
|
json.dump(to_dump, f)
|
|
|
|
def _get_raw(self, capture_uuid: str, extension: str='*', all_files: bool=True) -> BytesIO:
|
|
capture_dir = self.lookup_capture_dir(capture_uuid)
|
|
if not capture_dir:
|
|
raise MissingUUID(f'Unable to find UUID {capture_uuid} in the cache')
|
|
all_paths = sorted(list(capture_dir.glob(f'*.{extension}')))
|
|
if not all_files:
|
|
# Only get the first one in the list
|
|
with open(all_paths[0], 'rb') as f:
|
|
return BytesIO(f.read())
|
|
to_return = BytesIO()
|
|
with ZipFile(to_return, 'w') as myzip:
|
|
for path in all_paths:
|
|
if path.name.endswith('pickle'):
|
|
continue
|
|
myzip.write(path, arcname=f'{capture_dir.name}/{path.name}')
|
|
to_return.seek(0)
|
|
return to_return
|
|
|
|
def get_html(self, capture_uuid: str, all_html: bool=False) -> BytesIO:
|
|
return self._get_raw(capture_uuid, 'html', all_html)
|
|
|
|
def get_cookies(self, capture_uuid: str, all_cookies: bool=False) -> BytesIO:
|
|
return self._get_raw(capture_uuid, 'cookies.json', all_cookies)
|
|
|
|
def get_screenshot(self, capture_uuid: str, all_images: bool=False) -> BytesIO:
|
|
return self._get_raw(capture_uuid, 'png', all_images)
|
|
|
|
def get_capture(self, capture_uuid: str) -> BytesIO:
|
|
return self._get_raw(capture_uuid)
|
|
|
|
def capture(self, url: str, cookies_pseudofile: Optional[Union[BufferedIOBase, str]]=None,
|
|
depth: int=1, listing: bool=True, user_agent: Optional[str]=None,
|
|
referer: str='', perma_uuid: Optional[str]=None, os: Optional[str]=None,
|
|
browser: Optional[str]=None) -> Union[bool, str]:
|
|
url = url.strip()
|
|
url = refang(url)
|
|
if not url.startswith('http'):
|
|
url = f'http://{url}'
|
|
if self.only_global_lookups:
|
|
splitted_url = urlsplit(url)
|
|
if splitted_url.netloc:
|
|
if splitted_url.hostname:
|
|
try:
|
|
ip = socket.gethostbyname(splitted_url.hostname)
|
|
except socket.gaierror:
|
|
self.logger.info('Name or service not known')
|
|
return False
|
|
if not ipaddress.ip_address(ip).is_global:
|
|
return False
|
|
else:
|
|
return False
|
|
|
|
cookies = load_cookies(cookies_pseudofile)
|
|
if not user_agent:
|
|
# Catch case where the UA is broken on the UI, and the async submission.
|
|
ua: str = get_config('generic', 'default_user_agent')
|
|
else:
|
|
ua = user_agent
|
|
|
|
if int(depth) > int(get_config('generic', 'max_depth')):
|
|
self.logger.warning(f'Not allowed to capture on a depth higher than {get_config("generic", "max_depth")}: {depth}')
|
|
depth = int(get_config('generic', 'max_depth'))
|
|
items = crawl(self.splash_url, url, cookies=cookies, depth=depth, user_agent=ua,
|
|
referer=referer, log_enabled=True, log_level=get_config('generic', 'splash_loglevel'))
|
|
if not items:
|
|
# broken
|
|
return False
|
|
if not perma_uuid:
|
|
perma_uuid = str(uuid4())
|
|
width = len(str(len(items)))
|
|
dirpath = self.capture_dir / datetime.now().isoformat()
|
|
safe_create_dir(dirpath)
|
|
for i, item in enumerate(items):
|
|
if not listing: # Write no_index marker
|
|
(dirpath / 'no_index').touch()
|
|
with (dirpath / 'uuid').open('w') as _uuid:
|
|
_uuid.write(perma_uuid)
|
|
if os or browser:
|
|
meta = {}
|
|
if os:
|
|
meta['os'] = os
|
|
if browser:
|
|
meta['browser'] = browser
|
|
with (dirpath / 'meta').open('w') as _meta:
|
|
json.dump(meta, _meta)
|
|
|
|
if 'error' in item:
|
|
with (dirpath / 'error.txt').open('w') as _error:
|
|
json.dump(item['error'], _error)
|
|
|
|
# The capture went fine
|
|
harfile = item['har']
|
|
png = base64.b64decode(item['png'])
|
|
html = item['html']
|
|
last_redirect = item['last_redirected_url']
|
|
|
|
with (dirpath / '{0:0{width}}.har'.format(i, width=width)).open('w') as _har:
|
|
json.dump(harfile, _har)
|
|
with (dirpath / '{0:0{width}}.png'.format(i, width=width)).open('wb') as _img:
|
|
_img.write(png)
|
|
with (dirpath / '{0:0{width}}.html'.format(i, width=width)).open('w') as _html:
|
|
_html.write(html)
|
|
with (dirpath / '{0:0{width}}.last_redirect.txt'.format(i, width=width)).open('w') as _redir:
|
|
_redir.write(last_redirect)
|
|
|
|
if 'childFrames' in item:
|
|
child_frames = item['childFrames']
|
|
with (dirpath / '{0:0{width}}.frames.json'.format(i, width=width)).open('w') as _iframes:
|
|
json.dump(child_frames, _iframes)
|
|
|
|
if 'cookies' in item:
|
|
cookies = item['cookies']
|
|
with (dirpath / '{0:0{width}}.cookies.json'.format(i, width=width)).open('w') as _cookies:
|
|
json.dump(cookies, _cookies)
|
|
|
|
self._set_capture_cache(dirpath)
|
|
return perma_uuid
|
|
|
|
def get_body_hash_investigator(self, body_hash: str) -> Tuple[List[Tuple[str, str]], List[Tuple[str, float]]]:
|
|
captures: List[Tuple[str, str]] = []
|
|
total_captures, details = self.indexing.get_body_hash_captures(body_hash, limit=-1)
|
|
for capture_uuid, url_uuid, url_hostname, _ in details:
|
|
cache = self.capture_cache(capture_uuid)
|
|
if cache:
|
|
captures.append((capture_uuid, cache['title'])) # type: ignore
|
|
domains = self.indexing.get_body_hash_domains(body_hash)
|
|
return captures, domains
|
|
|
|
def get_body_hash_full(self, body_hash: str) -> Tuple[Dict[str, List[Dict[str, str]]], BytesIO]:
|
|
details = self.indexing.get_body_hash_urls(body_hash)
|
|
body_content = BytesIO()
|
|
# get the body from the first entry in the details list
|
|
for url, entries in details.items():
|
|
capture_dir = self.lookup_capture_dir(entries[0]['capture'])
|
|
if not capture_dir:
|
|
raise MissingUUID(f"Unable to find {entries[0]['capture']}")
|
|
|
|
ct = load_pickle_tree(capture_dir)
|
|
if not ct:
|
|
raise MissingUUID(f'Unable to find {capture_dir}')
|
|
urlnode = ct.root_hartree.get_url_node_by_uuid(entries[0]['urlnode'])
|
|
if urlnode.body_hash == body_hash:
|
|
# the hash we're looking for is the whole file
|
|
body_content = urlnode.body
|
|
else:
|
|
# The hash is an embedded resource
|
|
for mimetype, blobs in urlnode.body_hash.embedded_ressources.items():
|
|
for h, b in blobs:
|
|
if h == body_hash:
|
|
body_content = b
|
|
break
|
|
break
|
|
return details, body_content
|
|
|
|
def get_url_occurrences(self, url: str):
|
|
capture_uuids = self.indexing.get_captures_url(url)
|
|
to_return: Dict[str, Dict] = {cuuid: {} for cuuid in capture_uuids}
|
|
for capture_uuid in capture_uuids:
|
|
capture_dir = self.lookup_capture_dir(capture_uuid)
|
|
if not capture_dir:
|
|
raise MissingUUID(f"Unable to find {capture_uuid}")
|
|
|
|
ct = load_pickle_tree(capture_dir)
|
|
if not ct:
|
|
raise MissingUUID(f'Unable to find {capture_dir}')
|
|
to_return[capture_uuid]['start_timestamp'] = ct.root_hartree.start_time.isoformat()
|
|
to_return[capture_uuid]['urlnodes'] = {}
|
|
for urlnode in ct.root_hartree.url_tree.search_nodes(name=url):
|
|
to_return[capture_uuid]['urlnodes'][urlnode.uuid] = {'start_time': urlnode.start_time.isoformat(),
|
|
'hostnode_uuid': urlnode.hostnode_uuid}
|
|
if hasattr(urlnode, 'body_hash'):
|
|
to_return[capture_uuid]['urlnodes'][urlnode.uuid]['hash'] = urlnode.body_hash
|
|
return to_return
|
|
|
|
def get_hostname_occurrences(self, hostname: str, with_urls_occurrences: bool=False):
|
|
capture_uuids = self.indexing.get_captures_hostname(hostname)
|
|
to_return: Dict[str, Dict] = {cuuid: {} for cuuid in capture_uuids}
|
|
for capture_uuid in capture_uuids:
|
|
capture_dir = self.lookup_capture_dir(capture_uuid)
|
|
if not capture_dir:
|
|
raise MissingUUID(f"Unable to find {capture_uuid}")
|
|
|
|
ct = load_pickle_tree(capture_dir)
|
|
if not ct:
|
|
raise MissingUUID(f'Unable to find {capture_dir}')
|
|
to_return[capture_uuid]['start_timestamp'] = ct.root_hartree.start_time.isoformat()
|
|
to_return[capture_uuid]['hostnodes'] = []
|
|
if with_urls_occurrences:
|
|
to_return[capture_uuid]['urlnodes'] = {}
|
|
for hostnode in ct.root_hartree.hostname_tree.search_nodes(name=hostname):
|
|
to_return[capture_uuid]['hostnodes'].append(hostnode.uuid)
|
|
if with_urls_occurrences:
|
|
for urlnode in hostnode.urls:
|
|
to_return[capture_uuid]['urlnodes'][urlnode.uuid] = {'start_time': urlnode.start_time.isoformat(),
|
|
'url': urlnode.name,
|
|
'hostnode_uuid': urlnode.hostnode_uuid}
|
|
if hasattr(urlnode, 'body_hash'):
|
|
to_return[capture_uuid]['urlnodes'][urlnode.uuid]['hash'] = urlnode.body_hash
|
|
return to_return
|
|
|
|
def get_cookie_name_investigator(self, cookie_name: str):
|
|
captures = []
|
|
for capture_uuid, url_uuid in self.indexing.get_cookies_names_captures(cookie_name):
|
|
cache = self.capture_cache(capture_uuid)
|
|
if cache:
|
|
captures.append((capture_uuid, cache['title']))
|
|
domains = [(domain, freq, self.indexing.cookies_names_domains_values(cookie_name, domain))
|
|
for domain, freq in self.indexing.get_cookie_domains(cookie_name)]
|
|
return captures, domains
|
|
|
|
def hash_lookup(self, blob_hash: str, url: str, capture_uuid: str) -> Tuple[int, Dict[str, List[Tuple[str, str, str, str, str]]]]:
|
|
captures_list: Dict[str, List[Tuple[str, str, str, str, str]]] = {'same_url': [], 'different_url': []}
|
|
total_captures, details = self.indexing.get_body_hash_captures(blob_hash, url, filter_capture_uuid=capture_uuid)
|
|
for h_capture_uuid, url_uuid, url_hostname, same_url in details:
|
|
cache = self.capture_cache(h_capture_uuid)
|
|
if cache:
|
|
if same_url:
|
|
captures_list['same_url'].append((h_capture_uuid, url_uuid, cache['title'], cache['timestamp'], url_hostname)) # type: ignore
|
|
else:
|
|
captures_list['different_url'].append((h_capture_uuid, url_uuid, cache['title'], cache['timestamp'], url_hostname)) # type: ignore
|
|
return total_captures, captures_list
|
|
|
|
def _normalize_known_content(self, h: str, known_content: Dict[str, Any], url: URLNode):
|
|
known: Optional[Union[str, List[Any]]] = None
|
|
legitimate: Optional[Tuple[bool, Any]] = None
|
|
if h not in known_content:
|
|
return known, legitimate
|
|
|
|
if known_content[h]['type'] in ['generic', 'sanejs']:
|
|
known = known_content[h]['details']
|
|
elif known_content[h]['type'] == 'legitimate_on_domain':
|
|
legit = False
|
|
if url.hostname in known_content[h]['details']:
|
|
legit = True
|
|
legitimate = (legit, known_content[h]['details'])
|
|
elif known_content[h]['type'] == 'malicious':
|
|
legitimate = (False, known_content[h]['details'])
|
|
|
|
return known, legitimate
|
|
|
|
def get_ressource(self, tree_uuid: str, urlnode_uuid: str, h: Optional[str]) -> Optional[Tuple[str, BytesIO]]:
|
|
url = self.get_urlnode_from_tree(tree_uuid, urlnode_uuid)
|
|
if url.empty_response:
|
|
return None
|
|
if not h or h == url.body_hash:
|
|
# we want the body
|
|
return url.filename if url.filename else 'file.bin', url.body
|
|
|
|
# We want an embedded ressource
|
|
if h not in url.resources_hashes:
|
|
return None
|
|
for mimetype, blobs in url.embedded_ressources.items():
|
|
for ressource_h, blob in blobs:
|
|
if ressource_h == h:
|
|
return 'embedded_ressource.bin', blob
|
|
return None
|
|
|
|
def get_hashes(self, tree_uuid: str, hostnode_uuid: Optional[str]=None, urlnode_uuid: Optional[str]=None) -> Set[str]:
|
|
"""Return hashes of resources.
|
|
Only tree_uuid: All the hashes
|
|
tree_uuid and hostnode_uuid: hashes of all the resources in that hostnode (including embedded ressources)
|
|
tree_uuid, hostnode_uuid, and urlnode_uuid: hash of the URL node body, and embedded resources
|
|
"""
|
|
container: Union[CrawledTree, HostNode, URLNode]
|
|
if urlnode_uuid:
|
|
container = self.get_urlnode_from_tree(tree_uuid, urlnode_uuid)
|
|
elif hostnode_uuid:
|
|
container = self.get_hostnode_from_tree(tree_uuid, hostnode_uuid)
|
|
else:
|
|
container = self.get_crawled_tree(tree_uuid)
|
|
return get_resources_hashes(container)
|
|
|
|
def get_hostnode_investigator(self, capture_uuid: str, node_uuid: str) -> Tuple[HostNode, List[Dict[str, Any]]]:
|
|
capture_dir = self.lookup_capture_dir(capture_uuid)
|
|
if not capture_dir:
|
|
raise MissingUUID(f'Unable to find {capture_uuid}')
|
|
|
|
ct = load_pickle_tree(capture_dir)
|
|
if not ct:
|
|
raise MissingUUID(f'Unable to find {capture_dir}')
|
|
hostnode = ct.root_hartree.get_host_node_by_uuid(node_uuid)
|
|
if not hostnode:
|
|
raise MissingUUID(f'Unable to find UUID {node_uuid} in {capture_dir}')
|
|
|
|
cnames_path = ct.root_hartree.har.path.parent / 'cnames.json'
|
|
if cnames_path.exists():
|
|
with cnames_path.open() as f:
|
|
host_cnames = json.load(f)
|
|
cnames = self._build_cname_chain(host_cnames, hostnode.name)
|
|
if cnames:
|
|
hostnode.add_feature('cname', cnames)
|
|
|
|
known_content = self.context.find_known_content(hostnode)
|
|
|
|
urls: List[Dict[str, Any]] = []
|
|
for url in hostnode.urls:
|
|
# For the popup, we need:
|
|
# * https vs http
|
|
# * everything after the domain
|
|
# * the full URL
|
|
to_append: Dict[str, Any] = {
|
|
'encrypted': url.name.startswith('https'),
|
|
'url_path': url.name.split('/', 3)[-1],
|
|
'url_object': url,
|
|
}
|
|
|
|
if not url.empty_response:
|
|
# Index lookup
|
|
# %%% Full body %%%
|
|
freq = self.indexing.body_hash_fequency(url.body_hash)
|
|
to_append['body_hash_details'] = freq
|
|
if freq and 'hash_freq' in freq and freq['hash_freq'] and freq['hash_freq'] > 1:
|
|
to_append['body_hash_details']['other_captures'] = self.hash_lookup(url.body_hash, url.name, capture_uuid)
|
|
|
|
# %%% Embedded ressources %%%
|
|
if hasattr(url, 'embedded_ressources') and url.embedded_ressources:
|
|
to_append['embedded_ressources'] = {}
|
|
for mimetype, blobs in url.embedded_ressources.items():
|
|
for h, blob in blobs:
|
|
if h in to_append['embedded_ressources']:
|
|
# Skip duplicates
|
|
continue
|
|
freq_embedded = self.indexing.body_hash_fequency(h)
|
|
to_append['embedded_ressources'][h] = freq_embedded
|
|
to_append['embedded_ressources'][h]['body_size'] = blob.getbuffer().nbytes
|
|
to_append['embedded_ressources'][h]['type'] = mimetype
|
|
if freq_embedded['hash_freq'] > 1:
|
|
to_append['embedded_ressources'][h]['other_captures'] = self.hash_lookup(h, url.name, capture_uuid)
|
|
for h in to_append['embedded_ressources'].keys():
|
|
known, legitimate = self._normalize_known_content(h, known_content, url)
|
|
if known:
|
|
to_append['embedded_ressources'][h]['known_content'] = known
|
|
elif legitimate:
|
|
to_append['embedded_ressources'][h]['legitimacy'] = legitimate
|
|
|
|
known, legitimate = self._normalize_known_content(url.body_hash, known_content, url)
|
|
if known:
|
|
to_append['known_content'] = known
|
|
elif legitimate:
|
|
to_append['legitimacy'] = legitimate
|
|
|
|
# Optional: Cookies sent to server in request -> map to nodes who set the cookie in response
|
|
if hasattr(url, 'cookies_sent'):
|
|
to_display_sent: Dict[str, Set[Iterable[Optional[str]]]] = defaultdict(set)
|
|
for cookie, contexts in url.cookies_sent.items():
|
|
if not contexts:
|
|
# Locally created?
|
|
to_display_sent[cookie].add(('Unknown origin', ))
|
|
continue
|
|
for context in contexts:
|
|
to_display_sent[cookie].add((context['setter'].hostname, context['setter'].hostnode_uuid))
|
|
to_append['cookies_sent'] = to_display_sent
|
|
|
|
# Optional: Cookies received from server in response -> map to nodes who send the cookie in request
|
|
if hasattr(url, 'cookies_received'):
|
|
to_display_received: Dict[str, Dict[str, Set[Iterable[Optional[str]]]]] = {'3rd_party': defaultdict(set), 'sent': defaultdict(set), 'not_sent': defaultdict(set)}
|
|
for domain, c_received, is_3rd_party in url.cookies_received:
|
|
if c_received not in ct.root_hartree.cookies_sent:
|
|
# This cookie is never sent.
|
|
if is_3rd_party:
|
|
to_display_received['3rd_party'][c_received].add((domain, ))
|
|
else:
|
|
to_display_received['not_sent'][c_received].add((domain, ))
|
|
continue
|
|
|
|
for url_node in ct.root_hartree.cookies_sent[c_received]:
|
|
if is_3rd_party:
|
|
to_display_received['3rd_party'][c_received].add((url_node.hostname, url_node.hostnode_uuid))
|
|
else:
|
|
to_display_received['sent'][c_received].add((url_node.hostname, url_node.hostnode_uuid))
|
|
to_append['cookies_received'] = to_display_received
|
|
|
|
urls.append(to_append)
|
|
return hostnode, urls
|
|
|
|
def get_stats(self) -> Dict[str, List]:
|
|
today = date.today()
|
|
calendar_week = today.isocalendar()[1]
|
|
|
|
stats_dict = {'analysis': 0, 'analysis_with_redirects': 0, 'redirects': 0}
|
|
stats: Dict[int, Dict[int, Dict[str, Any]]] = {}
|
|
weeks_stats: Dict[int, Dict] = {}
|
|
|
|
for uuid in self.capture_uuids:
|
|
# What we get here is in a random order. This look sorts the captures
|
|
cache = self.capture_cache(uuid)
|
|
if 'timestamp' not in cache:
|
|
continue
|
|
date_analysis: datetime = datetime.fromisoformat(cache['timestamp'].rstrip('Z')) # type: ignore
|
|
|
|
if date_analysis.year not in stats:
|
|
stats[date_analysis.year] = {}
|
|
if date_analysis.month not in stats[date_analysis.year]:
|
|
stats[date_analysis.year][date_analysis.month] = defaultdict(dict, **stats_dict)
|
|
stats[date_analysis.year][date_analysis.month]['uniq_urls'] = set()
|
|
stats[date_analysis.year][date_analysis.month]['analysis'] += 1
|
|
stats[date_analysis.year][date_analysis.month]['uniq_urls'].add(cache['url'])
|
|
if len(cache['redirects']) > 0: # type: ignore
|
|
stats[date_analysis.year][date_analysis.month]['analysis_with_redirects'] += 1
|
|
stats[date_analysis.year][date_analysis.month]['redirects'] += len(cache['redirects']) # type: ignore
|
|
stats[date_analysis.year][date_analysis.month]['uniq_urls'].update(cache['redirects'])
|
|
|
|
if date_analysis.isocalendar()[1] >= calendar_week - 1:
|
|
if date_analysis.isocalendar()[1] not in weeks_stats:
|
|
weeks_stats[date_analysis.isocalendar()[1]] = defaultdict(dict, **stats_dict)
|
|
weeks_stats[date_analysis.isocalendar()[1]]['uniq_urls'] = set()
|
|
weeks_stats[date_analysis.isocalendar()[1]]['analysis'] += 1
|
|
weeks_stats[date_analysis.isocalendar()[1]]['uniq_urls'].add(cache['url'])
|
|
if len(cache['redirects']) > 0: # type: ignore
|
|
weeks_stats[date_analysis.isocalendar()[1]]['analysis_with_redirects'] += 1
|
|
weeks_stats[date_analysis.isocalendar()[1]]['redirects'] += len(cache['redirects']) # type: ignore
|
|
weeks_stats[date_analysis.isocalendar()[1]]['uniq_urls'].update(cache['redirects'])
|
|
|
|
statistics: Dict[str, List] = {'weeks': [], 'years': []}
|
|
for week_number in sorted(weeks_stats.keys()):
|
|
week_stat = weeks_stats[week_number]
|
|
urls = week_stat.pop('uniq_urls')
|
|
week_stat['week_number'] = week_number
|
|
week_stat['uniq_urls'] = len(urls)
|
|
week_stat['uniq_domains'] = len(uniq_domains(urls))
|
|
statistics['weeks'].append(week_stat)
|
|
|
|
for year in sorted(stats.keys()):
|
|
year_stats: Dict[str, Union[int, List]] = {'year': year, 'months': [], 'yearly_analysis': 0, 'yearly_redirects': 0}
|
|
for month in sorted(stats[year].keys()):
|
|
month_stats = stats[year][month]
|
|
urls = month_stats.pop('uniq_urls')
|
|
month_stats['month_number'] = month
|
|
month_stats['uniq_urls'] = len(urls)
|
|
month_stats['uniq_domains'] = len(uniq_domains(urls))
|
|
year_stats['months'].append(month_stats) # type: ignore
|
|
|
|
year_stats['yearly_analysis'] += month_stats['analysis']
|
|
year_stats['yearly_redirects'] += month_stats['redirects']
|
|
statistics['years'].append(year_stats)
|
|
return statistics
|