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46 lines
1.1 KiB
Python
46 lines
1.1 KiB
Python
from cryptography.fernet import Fernet
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from flask import current_app as app
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REQUIRED_SESSION_VALUES = ['uuid', 'config', 'fernet_keys']
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def generate_user_keys(cookies_disabled=False) -> dict:
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"""Generates a set of user keys
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Args:
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cookies_disabled: Flag for whether or not cookies are disabled by the
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user. If so, the user can only use the default key
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set generated on app init for queries.
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Returns:
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dict: A new Fernet key set
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"""
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if cookies_disabled:
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return app.default_key_set
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# Generate/regenerate unique key per user
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return {
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'element_key': Fernet.generate_key(),
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'text_key': Fernet.generate_key()
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}
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def valid_user_session(session: dict) -> bool:
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"""Validates the current user session
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Args:
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session: The current Flask user session
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Returns:
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bool: True/False indicating that all required session values are
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available
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"""
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# Generate secret key for user if unavailable
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for value in REQUIRED_SESSION_VALUES:
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if value not in session:
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return False
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return True
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