CIRCL
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AIL-framework
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AIL-framework/bin/crawlers/Crawler.py

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#!/usr/bin/env python3
# -*-coding:UTF-8 -*
import os
import logging.config
import sys
import time
from pyail import PyAIL
from requests.exceptions import ConnectionError
sys.path.append(os.environ['AIL_BIN'])
##################################
# Import Project packages
##################################
from modules.abstract_module import AbstractModule
from lib import ail_logger
from lib import crawlers
from lib.ConfigLoader import ConfigLoader
from lib.objects import CookiesNames
from lib.objects import Etags
from lib.objects.Domains import Domain
from lib.objects.Items import Item
from lib.objects import Screenshots
from lib.objects import Titles
from trackers.Tracker_Yara import Tracker_Yara
logging.config.dictConfig(ail_logger.get_config(name='crawlers'))
class Crawler(AbstractModule):
def __init__(self):
super(Crawler, self, ).__init__()
self.logger = logging.getLogger(f'{self.__class__.__name__}')
# Waiting time in seconds between to message processed
self.pending_seconds = 1
self.tracker_yara = Tracker_Yara(queue=False)
config_loader = ConfigLoader()
self.default_har = config_loader.get_config_boolean('Crawler', 'default_har')
self.default_screenshot = config_loader.get_config_boolean('Crawler', 'default_screenshot')
self.default_depth_limit = config_loader.get_config_int('Crawler', 'default_depth_limit')
ail_url_to_push_discovery = config_loader.get_config_str('Crawler', 'ail_url_to_push_onion_discovery')
ail_key_to_push_discovery = config_loader.get_config_str('Crawler', 'ail_key_to_push_onion_discovery')
if ail_url_to_push_discovery and ail_key_to_push_discovery:
ail = PyAIL(ail_url_to_push_discovery, ail_key_to_push_discovery, ssl=False)
if ail.ping_ail():
self.ail_to_push_discovery = ail
else:
self.ail_to_push_discovery = None
# TODO: LIMIT MAX NUMBERS OF CRAWLED PAGES
# update hardcoded blacklist
crawlers.load_blacklist()
# update captures cache
crawlers.reload_crawler_captures()
self.crawler_scheduler = crawlers.CrawlerScheduler()
# LACUS
self.lacus = crawlers.get_lacus()
self.is_lacus_up = crawlers.is_lacus_connected(delta_check=0)
# Capture
self.har = None
self.screenshot = None
self.root_item = None
self.date = None
self.items_dir = None
self.original_domain = None
self.domain = None
# TODO Replace with warning list ???
self.placeholder_screenshots = {'07244254f73e822bd4a95d916d8b27f2246b02c428adc29082d09550c6ed6e1a' # blank
'27e14ace10b0f96acd2bd919aaa98a964597532c35b6409dff6cc8eec8214748', # not found
'3e66bf4cc250a68c10f8a30643d73e50e68bf1d4a38d4adc5bfc4659ca2974c0'} # 404
# Send module state to logs
self.logger.info('Crawler initialized')
def refresh_lacus_status(self):
try:
lacus_up = self.is_lacus_up
self.is_lacus_up = crawlers.get_lacus().is_up
# refresh lacus
if not lacus_up and self.is_lacus_up:
self.lacus = crawlers.get_lacus()
except:
self.is_lacus_up = False
if not self.is_lacus_up:
print("Can't reach lacus server", int(time.time()))
time.sleep(30)
def print_crawler_start_info(self, url, domain_url):
print()
print()
print('\033[92m------------------START CRAWLER------------------\033[0m')
print(f'crawler type: {self.domain}')
print('\033[92m-------------------------------------------------\033[0m')
print(f'url: {url}')
print(f'domain: {self.domain}')
print(f'domain_url: {domain_url}')
print()
def get_message(self):
# Crawler Scheduler
self.crawler_scheduler.update_queue()
self.crawler_scheduler.process_queue()
self.refresh_lacus_status() # TODO LOG ERROR
if not self.is_lacus_up:
return None
# Check if a new Capture can be Launched
if crawlers.get_nb_crawler_captures() < crawlers.get_crawler_max_captures():
task_row = crawlers.add_task_to_lacus_queue()
if task_row:
task, priority = task_row
task.start()
task_uuid = task.uuid
try:
self.enqueue_capture(task_uuid, priority)
except ConnectionError:
print(task_row)
task = crawlers.CrawlerTask(task_uuid)
task.add_to_db_crawler_queue(priority)
self.refresh_lacus_status()
return None
# Get CrawlerCapture Object
capture = crawlers.get_crawler_capture()
if capture:
try:
status = self.lacus.get_capture_status(capture.uuid)
if status == crawlers.CaptureStatus.DONE:
return capture
elif status == crawlers.CaptureStatus.UNKNOWN:
capture_start = capture.get_start_time(r_str=False)
if int(time.time()) - capture_start > 600: # TODO ADD in new crawler config
task = capture.get_task()
task.reset()
capture.delete()
else:
capture.update(status)
else:
capture.update(status)
print(capture.uuid, crawlers.CaptureStatus(status).name, int(time.time()))
except ConnectionError:
print(capture.uuid)
capture.update(self, -1)
self.refresh_lacus_status()
time.sleep(self.pending_seconds)
def enqueue_capture(self, task_uuid, priority):
task = crawlers.CrawlerTask(task_uuid)
# print(task)
# task = {
# 'uuid': task_uuid,
# 'url': 'https://foo.be',
# 'domain': 'foo.be',
# 'depth': 1,
# 'har': True,
# 'screenshot': True,
# 'user_agent': crawlers.get_default_user_agent(),
# 'cookiejar': [],
# 'header': '',
# 'proxy': 'force_tor',
# 'parent': 'manual',
# }
url = task.get_url()
force = priority != 0
# TODO timeout
# TODO HEADER
# capture_uuid = self.lacus.enqueue(url='https://cpg.circl.lu:7000',
# force=force,
# general_timeout_in_sec=120)
capture_uuid = self.lacus.enqueue(url=url,
depth=task.get_depth(),
user_agent=task.get_user_agent(),
proxy=task.get_proxy(),
cookies=task.get_cookies(),
force=force,
general_timeout_in_sec=90) # TODO increase timeout if onion ????
crawlers.create_capture(capture_uuid, task_uuid)
print(task.uuid, capture_uuid, 'launched')
if self.ail_to_push_discovery:
if task.get_depth() == 1 and priority < 10 and task.get_domain().endswith('.onion'):
har = task.get_har()
screenshot = task.get_screenshot()
# parent_id = task.get_parent()
# if parent_id != 'manual' and parent_id != 'auto':
# parent = parent_id[19:-36]
# else:
# parent = 'AIL_capture'
self.ail_to_push_discovery.add_crawler_capture(task_uuid, capture_uuid, url, har=har, # parent=parent,
screenshot=screenshot, depth_limit=1, proxy='force_tor')
print(task.uuid, capture_uuid, 'Added to ail_to_push_discovery')
return capture_uuid
# CRAWL DOMAIN
def compute(self, capture):
print('saving capture', capture.uuid)
task = capture.get_task()
domain = task.get_domain()
print(domain)
self.domain = Domain(domain)
self.original_domain = Domain(domain)
epoch = int(time.time())
parent_id = task.get_parent()
entries = self.lacus.get_capture(capture.uuid)
print(entries.get('status'))
self.har = task.get_har()
self.screenshot = task.get_screenshot()
# DEBUG
# self.har = True
# self.screenshot = True
self.date = crawlers.get_current_date(separator=True)
self.items_dir = crawlers.get_date_crawled_items_source(self.date)
self.root_item = None
# Save Capture
self.save_capture_response(parent_id, entries)
self.domain.update_daterange(self.date.replace('/', ''))
# Origin + History + tags
if self.root_item:
self.domain.set_last_origin(parent_id)
# Tags
for tag in task.get_tags():
self.domain.add_tag(tag)
self.domain.add_history(epoch, root_item=self.root_item)
if self.domain != self.original_domain:
self.original_domain.update_daterange(self.date.replace('/', ''))
if self.root_item:
self.original_domain.set_last_origin(parent_id)
# Tags
for tag in task.get_tags():
self.domain.add_tag(tag)
self.original_domain.add_history(epoch, root_item=self.root_item)
crawlers.update_last_crawled_domain(self.original_domain.get_domain_type(), self.original_domain.id, epoch)
crawlers.update_last_crawled_domain(self.domain.get_domain_type(), self.domain.id, epoch)
print('capture:', capture.uuid, 'completed')
print('task: ', task.uuid, 'completed')
print()
task.remove()
def save_capture_response(self, parent_id, entries):
print(entries.keys())
if 'error' in entries:
# TODO IMPROVE ERROR MESSAGE
self.logger.warning(str(entries['error']))
print(entries.get('error'))
if entries.get('html'):
print('retrieved content')
# print(entries.get('html'))
if 'last_redirected_url' in entries and entries.get('last_redirected_url'):
last_url = entries['last_redirected_url']
unpacked_last_url = crawlers.unpack_url(last_url)
current_domain = unpacked_last_url['domain']
# REDIRECTION TODO CHECK IF TYPE CHANGE
if current_domain != self.domain.id and not self.root_item:
self.logger.warning(f'External redirection {self.domain.id} -> {current_domain}')
print(f'External redirection {self.domain.id} -> {current_domain}')
if not self.root_item:
self.domain = Domain(current_domain)
# TODO LAST URL
# FIXME
else:
last_url = f'http://{self.domain.id}'
if 'html' in entries and entries.get('html'):
item_id = crawlers.create_item_id(self.items_dir, self.domain.id)
item = Item(item_id)
print(item.id)
gzip64encoded = crawlers.get_gzipped_b64_item(item.id, entries['html'])
# send item to Global
relay_message = f'crawler {gzip64encoded}'
self.add_message_to_queue(obj=item, message=relay_message, queue='Importers')
# Tag # TODO replace me with metadata to tags
msg = f'infoleak:submission="crawler"' # TODO FIXME
self.add_message_to_queue(obj=item, message=msg, queue='Tags')
# TODO replace me with metadata to add
crawlers.create_item_metadata(item_id, last_url, parent_id)
if self.root_item is None:
self.root_item = item_id
parent_id = item_id
title_content = crawlers.extract_title_from_html(entries['html'])
if title_content:
title = Titles.create_title(title_content)
title.add(item.get_date(), item)
# Tracker
self.tracker_yara.compute_manual(title)
if not title.is_tags_safe():
unsafe_tag = 'dark-web:topic="pornography-child-exploitation"'
self.domain.add_tag(unsafe_tag)
item.add_tag(unsafe_tag)
# SCREENSHOT
if self.screenshot:
if 'png' in entries and entries.get('png'):
screenshot = Screenshots.create_screenshot(entries['png'], b64=False)
if screenshot:
if not screenshot.is_tags_safe():
unsafe_tag = 'dark-web:topic="pornography-child-exploitation"'
self.domain.add_tag(unsafe_tag)
item.add_tag(unsafe_tag)
# Remove Placeholder pages # TODO Replace with warning list ???
if screenshot.id not in self.placeholder_screenshots:
# Create Correlations
screenshot.add_correlation('item', '', item_id)
screenshot.add_correlation('domain', '', self.domain.id)
# HAR
if self.har:
if 'har' in entries and entries.get('har'):
har_id = crawlers.create_har_id(self.date, item_id)
crawlers.save_har(har_id, entries['har'])
for cookie_name in crawlers.extract_cookies_names_from_har(entries['har']):
print(cookie_name)
cookie = CookiesNames.create(cookie_name)
cookie.add(self.date.replace('/', ''), self.domain)
for etag_content in crawlers.extract_etag_from_har(entries['har']):
print(etag_content)
etag = Etags.create(etag_content)
etag.add(self.date.replace('/', ''), self.domain)
crawlers.extract_hhhash(entries['har'], self.domain.id, self.date.replace('/', ''))
# Next Children
entries_children = entries.get('children')
if entries_children:
for children in entries_children:
self.save_capture_response(parent_id, children)
if __name__ == '__main__':
module = Crawler()
module.debug = True
module.run()
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