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# -*- coding: utf-8 -*-
from itsdangerous import BadSignature, SignatureExpired, URLSafeTimedSerializer
from werkzeug.exceptions import Forbidden
from accounts.app import accounts_app
from typing import Union, Optional, Any
class Confirmation(URLSafeTimedSerializer):
def __init__(self, realm: str, key: Optional[str] = None,
**kwargs) -> None:
if key is None:
key = accounts_app.config["SECRET_KEY"]
super(Confirmation, self).__init__(key, salt=realm, **kwargs)
def loads_http(
self,
s: Union[str, bytes],
max_age: Optional[int] = None,
return_timestamp: bool = False,
salt: Optional[bytes] = None,
) -> Any:
"""
Like `Confirmation.loads`, but raise HTTP exceptions with appropriate
messages instead of `BadSignature` or `SignatureExpired`.
"""
try:
return self.loads(s, max_age, return_timestamp, salt)
except BadSignature:
raise Forbidden("Ungültiger Bestätigungslink.")
except SignatureExpired:
raise Forbidden("Bestätigungslink ist zu alt.")
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