Files
ai-contract-platform/backend/app/core/security.py
T
2026-04-24 13:44:17 +08:00

38 lines
1.1 KiB
Python

from datetime import datetime, timedelta, timezone
from typing import Optional
from jose import JWTError, jwt
from passlib.context import CryptContext
from app.core.config import settings
pwd_context = CryptContext(schemes=["pbkdf2_sha256"], deprecated="auto")
ALGORITHM = "HS256"
def verify_password(plain_password: str, hashed_password: str) -> bool:
return pwd_context.verify(plain_password, hashed_password)
def get_password_hash(password: str) -> str:
return pwd_context.hash(password)
def create_access_token(subject: str) -> str:
expire = datetime.now(timezone.utc) + timedelta(minutes=settings.access_token_expire_minutes)
payload = {"sub": subject, "exp": expire}
return jwt.encode(payload, settings.secret_key, algorithm=ALGORITHM)
def decode_access_token(token: str) -> Optional[str]:
try:
payload = jwt.decode(token, settings.secret_key, algorithms=[ALGORITHM])
except JWTError:
return None
subject = payload.get("sub")
if not isinstance(subject, str) or not subject:
return None
return subject