def authenticate(nick, password):
if not (is_valid_login_input(nick, password)):
return False
connector = DbConnector()
data = connector.get_one_result_for_query(QueryGenerator.get_user_data(),
(nick, ))
connector.close()
if data is None:
return False
else:
if pbkdf2_sha256.verify(
password,
data[2]): # Compares to the hash stored in the users table.
return True
return False
def is_valid_sign_up_input(nick, email, password):
global err
if not nick.isalnum():
err = "Nickname can contain only numbers and letters"
return False
if not password.isalnum():
err = "Password can contain only numbers and letters"
return False
connector = DbConnector()
data = connector.get_one_result_for_query(QueryGenerator.get_user_data(),
(nick, ))
if data is not None:
err = "This nickname is already taken. Please choose a different one"
return False
data = connector.get_one_result_for_query(QueryGenerator.get_email(),
(email, ))
if data is not None:
err = "This email is already in use"
return False
connector.close()
return True