lookyloo/tools/manual_parse_ua_list.py

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#!/usr/bin/env python3
import json
import traceback
from datetime import datetime
from pathlib import Path
from typing import Dict, Any
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from bs4 import BeautifulSoup
try:
import cloudscraper # type: ignore
HAS_CF = True
except ImportError:
HAS_CF = False
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from lookyloo.default import get_homedir, safe_create_dir
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from lookyloo.helpers import ParsedUserAgent, serialize_to_json
def update_user_agents() -> None:
# NOTE: this URL is behind cloudflare and tehre is no easy reliable way around it.
# The manual way it to open the page in the browser, save it, and run this script.
if not HAS_CF:
# The website with the UAs is behind Cloudflare's anti-bot page, we need cloudscraper
return
today = datetime.now()
ua_path = get_homedir() / 'user_agents' / str(today.year) / f'{today.month:02}'
safe_create_dir(ua_path)
ua_file_name: Path = ua_path / f'{today.date().isoformat()}.json'
if ua_file_name.exists():
# Already have a UA for that day.
return
try:
s = cloudscraper.create_scraper()
r = s.get('https://techblog.willshouse.com/2012/01/03/most-common-user-agents/')
except Exception:
traceback.print_exc()
return
to_store = ua_parser(r.text)
with open(ua_file_name, 'w') as f:
json.dump(to_store, f, indent=2)
def ua_parser(html_content: str) -> Dict[str, Any]:
soup = BeautifulSoup(html_content, 'html.parser')
try:
uas = soup.find_all('textarea')[1].text
except Exception:
traceback.print_exc()
return {}
to_store: Dict[str, Any] = {'by_frequency': []}
for ua in json.loads(uas.replace('\n', '')):
parsed_ua = ParsedUserAgent(ua['useragent'])
if not parsed_ua.platform or not parsed_ua.browser:
continue
platform_key = parsed_ua.platform
if parsed_ua.platform_version:
platform_key = f'{platform_key} {parsed_ua.platform_version}'
browser_key = parsed_ua.browser
if parsed_ua.version:
browser_key = f'{browser_key} {parsed_ua.version}'
if platform_key not in to_store:
to_store[platform_key] = {}
if browser_key not in to_store[platform_key]:
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to_store[platform_key][browser_key] = set()
to_store[platform_key][browser_key].add(parsed_ua.string)
to_store['by_frequency'].append({'os': platform_key,
'browser': browser_key,
'useragent': parsed_ua.string})
return to_store
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def main() -> None:
to_parse = Path('Most Common User Agents - Tech Blog (wh).html')
today = datetime.now()
ua_path = get_homedir() / 'user_agents' / str(today.year) / f'{today.month:02}'
safe_create_dir(ua_path)
ua_file_name: Path = ua_path / f'{today.date().isoformat()}.json'
with to_parse.open() as f:
to_store = ua_parser(f.read())
with open(ua_file_name, 'w') as f:
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json.dump(to_store, f, indent=2, default=serialize_to_json)
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if __name__ == '__main__':
main()