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Fix authenticator

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This commit is contained in:
Joscha 2020-04-20 14:03:22 +00:00
parent 135a8dce4b
commit ff06c5215e
1 changed files with 26 additions and 6 deletions
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32
PFERD/authenticators.py
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@ -1,21 +1,41 @@
"""
General authenticators useful in many situations
"""
import getpass import getpass
from typing import Optional, Tuple from typing import Optional, Tuple
class UserPassAuthenticator: class UserPassAuthenticator:
"""
An authenticator for username-password combinations that prompts the user
for missing information.
"""
def __init__(
self,
reason: str,
username: Optional[str] = None,
password: Optional[str] = None,
) -> None:
"""
reason - what the credentials are used for
username - the username (if already known)
password - the password (if already known)
"""
self._reason = reason
def __init__(self, username: Optional[str] = None, password: Optional[str] = None) -> None:
self._given_username = username self._given_username = username
self._given_password = password self._given_password = password
self._username = username self._username = username
self._password = password self._password = password
def get_credentials(self, reason: str) -> Tuple[str, str]: def get_credentials(self) -> Tuple[str, str]:
""" """
Returns a tuple (username, password). Prompts user for username or Returns a tuple (username, password). Prompts user for username or
password when necessary. Must be called with a "reason" that will be password when necessary.
displayed in the credentials prompt.
""" """
if self._username is None and self._given_username is not None: if self._username is None and self._given_username is not None:
@ -25,7 +45,7 @@ class UserPassAuthenticator:
self._password = self._given_password self._password = self._given_password
if self._username is None or self._password is None: if self._username is None or self._password is None:
print(f"Enter credentials ({reason})") print(f"Enter credentials ({self._reason})")
username: str username: str
if self._username is None: if self._username is None:
@ -60,7 +80,7 @@ class UserPassAuthenticator:
prompt the user. prompt the user.
""" """
(_, path) = self.get_credentials() (_, password) = self.get_credentials()
return password return password
def invalidate_credentials(self) -> None: def invalidate_credentials(self) -> None: