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User.py
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User.py
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import hashlib
class AuthException(Exception):
def __init__(self,username,user=None):
super().__init__(username,user)
self.username = username
self.user = user
class UsernameAlraadyExists(AuthException):
pass
class PasswordTooShort(AuthException):
pass
class InvaidUserName(AuthException):
pass
class InvaidPassword(AuthException):
pass
class User:
def __init__(self,username,password,disk_quata=None,home_path=None):
self.username = username
self.password = self._encrypt_pw(password)
self.is_logged_in = False
self.disk_quata = disk_quata
self.home_path = home_path
def _encrypt_pw(self,password):
hash_string = (self.username+password)
hash_string = hash_string.encode("utf-8")
return hashlib.sha256(hash_string).hexdigest()
def check_password(self,password):
encry_str = self._encrypt_pw(password)
return encry_str == password
def ftp_check_password(self,password):
return self.password == password
class User_Auth:
def __init__(self):
self.users = {}
def add_user(self,username,password,disk_quata,home_path):
if username in self.users:
raise UsernameAlraadyExists(username)
if len(password) < 6:
raise PasswordTooShort(username)
self.users[username] = User(username,password,disk_quata,home_path)
def login(self,username,password):
try:
user = self.users[username]
except KeyError:
raise InvaidUserName(username)
if not user.ftp_check_password(password):
raise InvaidPassword(username,user)
user.is_logged_in = True
return True