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52 lines
1.4 KiB
Python
52 lines
1.4 KiB
Python
# Copyright © 2012-2023 jrnl contributors
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# License: https://www.gnu.org/licenses/gpl-3.0.html
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import logging
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from abc import ABC
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from abc import abstractmethod
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from jrnl.exception import JrnlException
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from jrnl.messages import Message
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from jrnl.messages import MsgStyle
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from jrnl.messages import MsgText
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class BaseEncryption(ABC):
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def __init__(self, journal_name: str, config: dict):
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logging.debug("start")
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self._encoding: str = "utf-8"
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self._journal_name: str = journal_name
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self._config: dict = config
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def clear(self) -> None:
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pass
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def encrypt(self, text: str) -> bytes:
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logging.debug("encrypting")
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return self._encrypt(text)
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def decrypt(self, text: bytes) -> str:
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logging.debug("decrypting")
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if (result := self._decrypt(text)) is None:
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raise JrnlException(
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Message(MsgText.DecryptionFailedGeneric, MsgStyle.ERROR)
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)
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return result
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@abstractmethod
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def _encrypt(self, text: str) -> bytes:
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"""
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This is needed because self.decrypt might need
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to perform actions (e.g. prompt for password)
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before actually encrypting.
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"""
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pass
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@abstractmethod
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def _decrypt(self, text: bytes) -> str | None:
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"""
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This is needed because self.decrypt might need
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to perform actions (e.g. prompt for password)
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before actually decrypting.
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"""
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pass
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