143 lines
3.8 KiB
Python
143 lines
3.8 KiB
Python
from abc import ABC, abstractmethod
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from owrx.config import CoreConfig
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import json
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import logging
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logger = logging.getLogger(__name__)
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class PasswordException(Exception):
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pass
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class Password(ABC):
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@staticmethod
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def from_dict(d: dict):
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if "encoding" not in d:
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raise PasswordException("password encoding not set")
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if d["encoding"] == "string":
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return CleartextPassword(d)
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raise PasswordException("invalid passord encoding: {0}".format(d["type"]))
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@abstractmethod
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def is_valid(self, inp: str):
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pass
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@abstractmethod
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def toJson(self):
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pass
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class CleartextPassword(Password):
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def __init__(self, pwinfo):
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if isinstance(pwinfo, str):
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self._value = pwinfo
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elif isinstance(pwinfo, dict):
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self._value = pwinfo["value"]
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else:
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raise ValueError("invalid argument to ClearTextPassword()")
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def is_valid(self, inp: str):
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return self._value == inp
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def toJson(self):
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return {
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"encoding": "string",
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"value": self._value
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}
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DefaultPasswordClass = CleartextPassword
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class User(object):
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def __init__(self, name: str, enabled: bool, password: Password):
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self.name = name
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self.enabled = enabled
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self.password = password
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def toJson(self):
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return {
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"user": self.name,
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"enabled": self.enabled,
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"password": self.password.toJson()
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}
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class UserList(object):
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sharedInstance = None
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@staticmethod
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def getSharedInstance():
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if UserList.sharedInstance is None:
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UserList.sharedInstance = UserList()
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return UserList.sharedInstance
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def __init__(self):
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self.users = self._loadUsers()
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def _getUsersFile(self):
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config = CoreConfig()
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return "{data_directory}/users.json".format(data_directory=config.get_data_directory())
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def _loadUsers(self):
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usersFile = self._getUsersFile()
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try:
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with open(usersFile, "r") as f:
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users_json = json.load(f)
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return {u.name: u for u in [self._jsonToUser(d) for d in users_json]}
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except FileNotFoundError:
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return {}
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except json.JSONDecodeError:
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logger.exception("error while parsing users file %s", usersFile)
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return {}
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except Exception:
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logger.exception("error while processing users from %s", usersFile)
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return {}
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def _jsonToUser(self, d):
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if "user" in d and "password" in d and "enabled" in d:
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return User(d["user"], d["enabled"], Password.from_dict(d["password"]))
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def _userToJson(self, u):
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return u.toJson()
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def _store(self):
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usersFile = self._getUsersFile()
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users = [u.toJson() for u in self.users.values()]
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try:
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with open(usersFile, "w") as f:
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json.dump(users, f, indent=4)
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except Exception:
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logger.exception("error while writing users file %s", usersFile)
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def addUser(self, user: User):
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self[user.name] = user
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def deleteUser(self, user):
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if isinstance(user, User):
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username = user.name
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else:
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username = user
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del self[username]
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def __delitem__(self, key):
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if key not in self.users:
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raise KeyError("User {user} doesn't exist".format(user=key))
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del self.users[key]
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self._store()
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def __getitem__(self, item):
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return self.users[item]
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def __contains__(self, item):
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return item in self.users
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def __setitem__(self, key, value):
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if key in self.users:
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raise KeyError("User {user} already exists".format(user=key))
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self.users[key] = value
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self._store()
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