63 lines
1.9 KiB
Python
63 lines
1.9 KiB
Python
from __future__ import annotations
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from dataclasses import dataclass
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from datetime import datetime, timedelta, timezone
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from uuid import uuid4
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from jose import JWTError, jwt
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from passlib.context import CryptContext
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from app.core.config import get_settings
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from app.core.exceptions import UnauthorizedError
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pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
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settings = get_settings()
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ACCESS_TOKEN_TYPE = "access" # nosec B105
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@dataclass(slots=True)
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class TokenPayload:
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user_id: int
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def verify_password(plain_password: str, hashed_password: str) -> bool:
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return pwd_context.verify(plain_password, hashed_password)
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def get_password_hash(password: str) -> str:
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return pwd_context.hash(password)
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def create_access_token(subject: str) -> str:
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now = datetime.now(timezone.utc)
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expire = now + timedelta(minutes=settings.access_token_expire_minutes)
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to_encode = {
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"sub": subject,
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"iat": int(now.timestamp()),
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"nbf": int(now.timestamp()),
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"exp": int(expire.timestamp()),
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"jti": str(uuid4()),
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"type": ACCESS_TOKEN_TYPE,
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"iss": settings.jwt_issuer,
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"aud": settings.jwt_audience,
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}
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return jwt.encode(to_encode, settings.jwt_secret_key, algorithm=settings.jwt_algorithm)
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def decode_access_token(token: str) -> TokenPayload:
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try:
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payload = jwt.decode(
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token,
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settings.jwt_secret_key,
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algorithms=[settings.jwt_algorithm],
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issuer=settings.jwt_issuer,
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audience=settings.jwt_audience,
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)
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subject = payload.get("sub")
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token_type = payload.get("type")
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if subject is None or token_type != ACCESS_TOKEN_TYPE:
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raise UnauthorizedError("Could not validate credentials")
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return TokenPayload(user_id=int(subject))
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except (JWTError, ValueError) as exc:
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raise UnauthorizedError("Could not validate credentials") from exc
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