Download backend/security_config.py from SolutionChallenge/solution_challenge_backend: direct link, hf CLI and curl.
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https://huggingface.co/spaces/SolutionChallenge/solution_challenge_backend/resolve/main/backend/security_config.py
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3.3 kB
| """ | |
| Production security validation and secret resolution. | |
| """ | |
| from __future__ import annotations | |
| import hmac | |
| import os | |
| import sys | |
| # Legacy well-known defaults — rejected in strict startup; never auto-resolved from code. | |
| KNOWN_INSECURE_API_KEYS = frozenset({"cepheus-dev-key"}) | |
| def is_production() -> bool: | |
| return os.getenv("CEPHEUS_PRODUCTION", "").strip() == "1" | |
| def is_demo_mode() -> bool: | |
| """Demo simulations (issue progress, missing-person auto-resolve) — never in production.""" | |
| if is_production(): | |
| return False | |
| return os.getenv("CEPHEUS_DEMO_MODE", "").strip() == "1" | |
| def is_auth_dev_mode() -> bool: | |
| """Local-only insecure auth defaults — never in production.""" | |
| if is_production(): | |
| return False | |
| return os.getenv("CEPHEUS_AUTH_DEV_MODE", "").strip() == "1" | |
| def safe_compare_strings(a: str, b: str) -> bool: | |
| if not a or not b: | |
| return False | |
| return hmac.compare_digest(a.encode("utf-8"), b.encode("utf-8")) | |
| def resolve_dev_api_key() -> str: | |
| if not is_auth_dev_mode(): | |
| return "" | |
| return os.getenv("CEPHEUS_DEV_API_KEY", "").strip() | |
| def resolve_api_key() -> str: | |
| key = os.getenv("CEPHEUS_API_KEY", "").strip() | |
| if key: | |
| return key | |
| if is_production(): | |
| return "" | |
| return resolve_dev_api_key() | |
| def resolve_readonly_api_key() -> str: | |
| """Optional read-only automation key (ISSUE-178). Role enforced at route dependencies.""" | |
| return os.getenv("CEPHEUS_READONLY_API_KEY", "").strip() | |
| def api_key_scope_label() -> str: | |
| """Document intended API key use (audit / ops); does not enforce RBAC by itself.""" | |
| return os.getenv("CEPHEUS_API_KEY_SCOPE", "").strip() | |
| def validate_startup() -> None: | |
| """Fail fast when production or a real cloud deployment is misconfigured. | |
| Local development may run the cloud stub engine (CEPHEUS_CLOUD=1) together with | |
| CEPHEUS_AUTH_DEV_MODE=1; that combination is intentionally exempt from the strict | |
| secret requirements so developers can run the full stack locally. Real cloud | |
| deployments must NOT set CEPHEUS_AUTH_DEV_MODE and therefore remain strict. | |
| """ | |
| errors: list[str] = [] | |
| dev_mode = is_auth_dev_mode() | |
| cloud = os.getenv("CEPHEUS_CLOUD", "").strip() in ("1", "true", "yes") | |
| # Strict when in production, or a cloud deploy that is NOT explicitly in dev mode. | |
| strict = is_production() or (cloud and not dev_mode) | |
| if strict: | |
| if not os.getenv("CEPHEUS_JWT_SECRET", "").strip(): | |
| errors.append("CEPHEUS_JWT_SECRET is required in production/cloud") | |
| if dev_mode and is_production(): | |
| errors.append("CEPHEUS_AUTH_DEV_MODE must be 0 in production") | |
| key = os.getenv("CEPHEUS_API_KEY", "").strip() | |
| if not key or key in KNOWN_INSECURE_API_KEYS: | |
| errors.append("CEPHEUS_API_KEY must be set to a non-default value in production/cloud") | |
| cors = os.getenv("CORS_ORIGINS", "").strip() | |
| if not cors: | |
| errors.append("CORS_ORIGINS must be set in production/cloud") | |
| if errors: | |
| for msg in errors: | |
| print(f"FATAL: {msg}", file=sys.stderr) | |
| raise SystemExit(1) | |
| def auth_enabled_check() -> bool: | |
| return bool(os.getenv("CEPHEUS_JWT_SECRET", "").strip()) or is_auth_dev_mode() | |