mirror of https://github.com/CIRCL/lookyloo
97 lines
3.2 KiB
Python
97 lines
3.2 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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import hashlib
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import json
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import os
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from functools import lru_cache
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from pathlib import Path
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from typing import Dict, List, Union
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import flask_login # type: ignore
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from werkzeug.security import generate_password_hash
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from lookyloo.helpers import get_config, get_homedir
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def src_request_ip(request) -> str:
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# NOTE: X-Real-IP is the IP passed by the reverse proxy in the headers.
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real_ip = request.headers.get('X-Real-IP')
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if not real_ip:
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real_ip = request.remote_addr
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return real_ip
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class User(flask_login.UserMixin):
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pass
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def load_user_from_request(request):
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api_key = request.headers.get('Authorization')
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if not api_key:
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return None
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user = User()
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api_key = api_key.strip()
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keys_table = build_keys_table()
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if api_key in keys_table:
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user.id = keys_table[api_key]
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return user
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return None
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@lru_cache(64)
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def build_keys_table() -> Dict[str, str]:
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keys_table = {}
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for username, authstuff in build_users_table().items():
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if 'authkey' in authstuff:
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keys_table[authstuff['authkey']] = username
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return keys_table
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@lru_cache(64)
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def get_users() -> Dict[str, Union[str, List[str]]]:
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try:
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# Use legacy user mgmt, no need to print a warning, and it will fail on new install.
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return get_config('generic', 'cache_clean_user', quiet=True)
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except Exception:
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return get_config('generic', 'users')
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@lru_cache(64)
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def build_users_table() -> Dict[str, Dict[str, str]]:
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users_table: Dict[str, Dict[str, str]] = {}
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for username, authstuff in get_users().items():
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if isinstance(authstuff, str):
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# just a password, make a key
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users_table[username] = {}
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users_table[username]['password'] = generate_password_hash(authstuff)
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users_table[username]['authkey'] = hashlib.pbkdf2_hmac('sha256', get_secret_key(),
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authstuff.encode(),
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100000).hex()
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elif isinstance(authstuff, list) and len(authstuff) == 2:
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if isinstance(authstuff[0], str) and isinstance(authstuff[1], str) and len(authstuff[1]) == 64:
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users_table[username] = {}
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users_table[username]['password'] = generate_password_hash(authstuff[0])
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users_table[username]['authkey'] = authstuff[1]
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else:
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raise Exception('User setup invalid. Must be "username": "password" or "username": ["password", "token 64 chars (sha256)"]')
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return users_table
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@lru_cache(64)
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def get_secret_key() -> bytes:
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secret_file_path: Path = get_homedir() / 'secret_key'
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if not secret_file_path.exists() or secret_file_path.stat().st_size < 64:
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if not secret_file_path.exists() or secret_file_path.stat().st_size < 64:
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with secret_file_path.open('wb') as f:
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f.write(os.urandom(64))
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with secret_file_path.open('rb') as f:
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return f.read()
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@lru_cache(64)
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def sri_load() -> Dict[str, Dict[str, str]]:
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with (get_homedir() / 'website' / 'web' / 'sri.txt').open() as f:
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return json.load(f)
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