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33 lines
1 KiB
Python
33 lines
1 KiB
Python
import hashlib
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from . import Journal, util
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from cryptography.fernet import Fernet, InvalidToken
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import base64
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def make_key(password):
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return base64.urlsafe_b64encode(hashlib.sha256(password.encode("utf-8")).digest())
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class EncryptedJournal(Journal.Journal):
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def __init__(self, name='default', **kwargs):
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super(EncryptedJournal, self).__init__(name, **kwargs)
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self.config['encrypt'] = True
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def _load(self, filename):
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with open(filename) as f:
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journal_encrypted = f.read()
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def validate_password(password):
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key = make_key(password)
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try:
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return Fernet(key).decrypt(journal_encrypted)
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except InvalidToken:
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return None
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return util.get_password(keychain=self.name, validator=validate_password)
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def _store(self, filename, text):
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key = make_key(self.config['password'])
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journal = Fernet(key).encrypt(text)
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with open(filename, 'w') as f:
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f.write(journal)
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