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from __future__ import annotations
import re
from typing import Any, TYPE_CHECKING, List, Optional
from .utils import get_password
from ..menu import Menu, ListManager
from ..models.users import User
if TYPE_CHECKING:
_: Any
class UserList(ListManager):
"""
subclass of ListManager for the managing of user accounts
"""
def __init__(self, prompt: str, lusers: List[User]):
self._actions = [
str(_('Add a user')),
str(_('Change password')),
str(_('Promote/Demote user')),
str(_('Delete User'))
]
super().__init__(prompt, lusers, [self._actions[0]], self._actions[1:])
def selected_action_display(self, user: User) -> str:
return user.username
def handle_action(self, action: str, entry: Optional[User], data: List[User]) -> List[User]:
if action == self._actions[0]: # add
new_user = self._add_user()
if new_user is not None:
# in case a user with the same username as an existing user
# was created we'll replace the existing one
data = [d for d in data if d.username != new_user.username]
data += [new_user]
elif action == self._actions[1] and entry: # change password
prompt = str(_('Password for user "{}": ').format(entry.username))
new_password = get_password(prompt=prompt)
if new_password:
user = next(filter(lambda x: x == entry, data))
user.password = new_password
elif action == self._actions[2] and entry: # promote/demote
user = next(filter(lambda x: x == entry, data))
user.sudo = False if user.sudo else True
elif action == self._actions[3] and entry: # delete
data = [d for d in data if d != entry]
return data
def _check_for_correct_username(self, username: str) -> bool:
if re.match(r'^[a-z_][a-z0-9_-]*\$?$', username) and len(username) <= 32:
return True
return False
def _add_user(self) -> Optional[User]:
prompt = '\n\n' + str(_('Enter username (leave blank to skip): '))
while True:
try:
username = input(prompt).strip(' ')
except (KeyboardInterrupt, EOFError):
return None
if not username:
return None
if not self._check_for_correct_username(username):
error_prompt = str(_("The username you entered is invalid. Try again"))
print(error_prompt)
else:
break
password = get_password(prompt=str(_('Password for user "{}": ').format(username)))
if not password:
return None
choice = Menu(
str(_('Should "{}" be a superuser (sudo)?')).format(username), Menu.yes_no(),
skip=False,
default_option=Menu.yes(),
clear_screen=False,
show_search_hint=False
).run()
sudo = True if choice.value == Menu.yes() else False
return User(username, password, sudo)
def ask_for_additional_users(prompt: str = '', defined_users: List[User] = []) -> List[User]:
users = UserList(prompt, defined_users).run()
return users
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