swag-shop/app/services/user/login_service.py

46 lines
1.4 KiB
Python

import datetime
from typing import Tuple, Union
import bcrypt
from mysql.connector import Error as mysqlError
from flask_jwt_extended import create_access_token
import app.messages.api_responses.user_responses as response
import app.messages.api_errors as errors
from app.db import user_db
from app.mail.mail import send_mail
from app.models.user_model import User
from app.messages.mail_responses.user_email import USER_EMAIL_SUCCESSFULLY_LOGGED_IN
def login(username: str, password: str) -> Tuple[Union[dict, str], int]:
"""
Authenticates a user with the provided username and password.
:param username: User's username.
:type username: str
:param password: User's password.
:type password: str
:return: Tuple containing a dictionary with a token and an HTTP status code.
:rtype: Tuple[Union[dict, str], int]
"""
try:
user: User = user_db.fetch_by_username(username)
if user is None:
return response.USERNAME_NOT_FOUND
if not bcrypt.checkpw(password.encode("utf-8"), user.password.encode("utf-8")):
return response.INCORRECT_PASSWORD
expire = datetime.timedelta(hours=1)
token = create_access_token(identity=user.user_id, expires_delta=expire)
send_mail(USER_EMAIL_SUCCESSFULLY_LOGGED_IN, user.email)
return {"token": token}, 200
except mysqlError as e:
return errors.UNKNOWN_DATABASE_ERROR(e)