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File size: 1,848 Bytes
49e9f9d | 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 | from datetime import datetime, timedelta, timezone
import bcrypt
from jose import JWTError, jwt
from fastapi import HTTPException, Depends, status
from fastapi.security import HTTPBearer, HTTPAuthorizationCredentials
from .config import settings
bearer_scheme = HTTPBearer()
_BCRYPT_MAX = 72
def _clip(password: str) -> bytes:
return password.encode("utf-8")[:_BCRYPT_MAX]
def hash_password(password: str) -> str:
return bcrypt.hashpw(_clip(password), bcrypt.gensalt()).decode("utf-8")
def verify_password(plain: str, hashed: str) -> bool:
try:
return bcrypt.checkpw(_clip(plain), hashed.encode("utf-8"))
except ValueError:
return False
def create_token(data: dict) -> str:
payload = data.copy()
payload["exp"] = datetime.now(timezone.utc) + timedelta(
minutes=settings.JWT_EXPIRE_MINUTES
)
return jwt.encode(payload, settings.JWT_SECRET, algorithm=settings.JWT_ALGORITHM)
def decode_token(token: str) -> dict:
try:
return jwt.decode(token, settings.JWT_SECRET, algorithms=[settings.JWT_ALGORITHM])
except JWTError:
raise HTTPException(
status_code=status.HTTP_401_UNAUTHORIZED,
detail="Invalid or expired token",
)
def decode_token_safe(token: str) -> dict | None:
try:
return jwt.decode(token, settings.JWT_SECRET, algorithms=[settings.JWT_ALGORITHM])
except JWTError:
return None
async def get_current_user(
creds: HTTPAuthorizationCredentials = Depends(bearer_scheme),
) -> dict:
return decode_token(creds.credentials)
def require_role(role: str):
async def _dep(payload: dict = Depends(get_current_user)) -> dict:
if payload.get("role") != role:
raise HTTPException(status_code=403, detail=f"Requires {role} role")
return payload
return _dep
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