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71c1ad2 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 | # app/core/security.py
# Password hashing (argon2-cffi) + JWT creation/verification (python-jose)
from datetime import datetime, timedelta, timezone
from typing import Optional
from argon2 import PasswordHasher
from argon2.exceptions import VerifyMismatchError, VerificationError, InvalidHashError
from jose import JWTError, jwt
from app.config import get_settings
settings = get_settings()
# ──────────────────────────────────────────────
# Password hashing — Argon2id (modern, OWASP recommended)
# ──────────────────────────────────────────────
_ph = PasswordHasher()
def hash_password(plain: str) -> str:
return _ph.hash(plain)
def verify_password(plain: str, hashed: str) -> bool:
try:
return _ph.verify(hashed, plain)
except (VerifyMismatchError, VerificationError, InvalidHashError):
return False
# ──────────────────────────────────────────────
# JWT — HS256 access + refresh tokens
# ──────────────────────────────────────────────
ALGORITHM = "HS256"
def _create_token(data: dict, secret: str, expires_delta: timedelta) -> str:
payload = data.copy()
payload["exp"] = datetime.now(timezone.utc) + expires_delta
return jwt.encode(payload, secret, algorithm=ALGORITHM)
def create_access_token(user_id: str, role: str) -> str:
return _create_token(
{"sub": user_id, "role": role, "type": "access"},
settings.jwt_access_secret,
timedelta(minutes=settings.jwt_access_expires_minutes),
)
def create_refresh_token(user_id: str, role: str) -> str:
return _create_token(
{"sub": user_id, "role": role, "type": "refresh"},
settings.jwt_refresh_secret,
timedelta(days=settings.jwt_refresh_expires_days),
)
def decode_access_token(token: str) -> Optional[dict]:
"""Returns payload dict or None on failure."""
try:
payload = jwt.decode(token, settings.jwt_access_secret, algorithms=[ALGORITHM])
if payload.get("type") != "access":
return None
return payload
except JWTError:
return None
def decode_refresh_token(token: str) -> Optional[dict]:
"""Returns payload dict or None on failure."""
try:
payload = jwt.decode(token, settings.jwt_refresh_secret, algorithms=[ALGORITHM])
if payload.get("type") != "refresh":
return None
return payload
except JWTError:
return None
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