77 lines
2.1 KiB
Python
77 lines
2.1 KiB
Python
from __future__ import annotations
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from datetime import datetime, timedelta, timezone
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from typing import Any
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from cryptography.fernet import Fernet
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from jose import JWTError, jwt
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from passlib.context import CryptContext
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from .config import get_settings
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settings = get_settings()
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pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
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ALGORITHM = "HS256"
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def hash_password(password: str) -> str:
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return pwd_context.hash(password)
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def verify_password(plain: str, hashed: str) -> bool:
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return pwd_context.verify(plain, hashed)
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def _now() -> datetime:
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return datetime.now(timezone.utc)
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def create_access_token(subject: str | int, extra: dict[str, Any] | None = None) -> str:
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payload: dict[str, Any] = {
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"sub": str(subject),
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"type": "access",
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"iat": _now(),
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"exp": _now() + timedelta(minutes=settings.access_token_expire_minutes),
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}
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if extra:
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payload.update(extra)
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return jwt.encode(payload, settings.secret_key, algorithm=ALGORITHM)
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def create_refresh_token(subject: str | int) -> str:
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payload = {
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"sub": str(subject),
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"type": "refresh",
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"iat": _now(),
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"exp": _now() + timedelta(days=settings.refresh_token_expire_days),
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}
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return jwt.encode(payload, settings.secret_key, algorithm=ALGORITHM)
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def decode_token(token: str) -> dict[str, Any]:
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try:
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return jwt.decode(token, settings.secret_key, algorithms=[ALGORITHM])
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except JWTError as exc: # pragma: no cover
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raise ValueError(f"invalid token: {exc}") from exc
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# --- Симметричное шифрование секретов устройств -----------------------------
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# Производный ключ из SECRET_KEY (для dev). В prod — KMS / Vault.
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def _fernet() -> Fernet:
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import base64
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import hashlib
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digest = hashlib.sha256(settings.secret_key.encode()).digest()
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key = base64.urlsafe_b64encode(digest)
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return Fernet(key)
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def encrypt_secret(value: str) -> str:
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return _fernet().encrypt(value.encode()).decode()
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def decrypt_secret(token: str) -> str:
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return _fernet().decrypt(token.encode()).decode()
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