Files
HangmanLab.Backend/env_provider.py
hzhang 58f23ddcb8 Security hardening: fix RCE, auth and SSRF issues
Critical:
- backup: prevent Zip Slip path traversal and zip bombs in restore/convert
  via safe_extract(); serialize get_backup() with backup_lock and always
  restore CWD so concurrent requests can't corrupt the os.chdir state
- app: only enable the Werkzeug debugger/reloader when ENVIRONMENT=dev;
  always init rate limits (also under WSGI), not just under __main__
- apikey: fix create_key never committing (session.commit -> commit()),
  validate roles against an allowlist, and fix revoke_key/update_last_used
  operating on detached instances so revocation actually persists
- env_provider: redact DB_PASSWORD and SESSION_SECRET_KEY in summerize()

High:
- markdown: filter private/protected docs for non-admins in the listing,
  get_home, get_index and search endpoints (was an anonymous data leak);
  escape LIKE metacharacters and cap search results
- webhooks: validate target URL to block SSRF (loopback/private/link-local/
  metadata IPs), disable redirects, safely parse additional_header
- auth: validate JWT issuer and require exp/iat; add timeout to JWKS fetch;
  harden Authorization header parsing against malformed values
- log: require admin for GET /api/log and auth for POST; bound entry size

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-16 16:12:43 +01:00

48 lines
1.3 KiB
Python

import os
from dotenv import load_dotenv
load_dotenv()
def str_to_bool(value):
return value.lower() in ("yes", "true", "t", "1")
ENVIRONMENT = os.getenv("ENVIRONMENT", "dev")
DB_HOST = os.getenv("DB_HOST")
DB_PORT = os.getenv("DB_PORT")
DB_NAME = os.getenv("DB_NAME")
DB_USER = os.getenv("DB_USER")
DB_PASSWORD = os.getenv("DB_PASSWORD")
DB_SCHEMA_UPDATED = str_to_bool(os.getenv("DB_SCHEMA_UPDATED", 'false'))
SESSION_SECRET_KEY = os.getenv("SESSION_SECRET_KEY")
KC_HOST = os.getenv("KC_HOST")
KC_REALM = os.getenv("KC_REALM")
KC_CLIENT_ID = os.getenv("KC_CLIENT_ID")
FRONTEND_HOST = os.getenv("FRONTEND_HOST")
BACKEND_HOST = os.getenv("BACKEND_HOST")
def _redact(value):
if not value:
return "<unset>"
return f"<set:{len(str(value))} chars>"
def summerize():
return {
"ENVIRONMENT": ENVIRONMENT,
'DB_HOST': DB_HOST,
'DB_PORT': DB_PORT,
'DB_NAME': DB_NAME,
'DB_USER': DB_USER,
'DB_PASSWORD': _redact(DB_PASSWORD),
'DB_SCHEMA_UPDATED': DB_SCHEMA_UPDATED,
'SESSION_SECRET_KEY': _redact(SESSION_SECRET_KEY),
'KC_HOST': KC_HOST,
'KC_REALM': KC_REALM,
'KC_CLIENT_ID': KC_CLIENT_ID,
'FRONTEND_HOST': FRONTEND_HOST,
'BACKEND_HOST': BACKEND_HOST,
}