71 lines
1.7 KiB
Python
71 lines
1.7 KiB
Python
from datetime import UTC, datetime, timedelta
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from fastapi import HTTPException, status
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from jose import JWTError, jwt
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from pwdlib import PasswordHash
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from app.core.config import settings
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password_hash = PasswordHash.recommended()
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ALGORITHM = "HS256"
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ACCESS_TOKEN_TYPE = "access"
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def get_access_token_expire_seconds() -> int:
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return settings.access_token_expire_minutes * 60
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def hash_password(password: str) -> str:
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return password_hash.hash(password)
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def verify_password(plain_password: str, hashed_password: str) -> bool:
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return password_hash.verify(plain_password, hashed_password)
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def create_access_token(subject: str) -> str:
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issued_at = datetime.now(UTC)
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expire = issued_at + timedelta(minutes=settings.access_token_expire_minutes)
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payload = {
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"sub": subject,
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"iat": issued_at,
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"exp": expire,
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"iss": settings.jwt_issuer,
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"type": ACCESS_TOKEN_TYPE,
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}
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return jwt.encode(
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payload,
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settings.secret_key,
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algorithm=ALGORITHM,
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)
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def verify_access_token(token: str) -> str:
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credentials_exception = HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail="Nicht authentifiziert",
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headers={"WWW-Authenticate": "Bearer"},
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)
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try:
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payload = jwt.decode(
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token,
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settings.secret_key,
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algorithms=[ALGORITHM],
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issuer=settings.jwt_issuer,
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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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except JWTError as exc:
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raise credentials_exception from exc
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if not isinstance(subject, str) or not subject:
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raise credentials_exception
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if token_type != ACCESS_TOKEN_TYPE:
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raise credentials_exception
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return subject
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