Project, Web Technologies, Year 3, Semester 1
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from functools import wraps
from flask import Blueprint, request
from pyotp import TOTP
import db_utils
import models
import ram_db
import returns
login = Blueprint('login', __name__)
@login.post('/')
def make_login():
try:
username = request.json['username']
code = request.json['code']
except (TypeError, KeyError):
return returns.INVALID_REQUEST
user: models.User | None = db_utils.get_user(username=username)
if user is None:
return returns.INVALID_DETAILS
otp = TOTP(user.otp)
if not otp.verify(code, valid_window=1):
return returns.INVALID_DETAILS
token = ram_db.login_user(user.id)
return returns.success(token=token)
def ensure_logged_in(fn):
@wraps(fn)
def wrapper(*args, **kargs):
token = request.headers.get('Authorization', None)
if token is None:
return returns.NO_AUTHORIZATION
if not token.startswith('Bearer '):
return returns.INVALID_AUTHORIZATION
token = token[7:]
user_id = ram_db.get_user(token)
if user_id is None:
return returns.INVALID_AUTHORIZATION
return fn(user_id=user_id, *args, **kargs)
return wrapper
@login.get('/whoami')
@ensure_logged_in
def whoami(user_id):
user: models.User | None = db_utils.get_user(user_id=user_id)
if user is not None:
user = user.to_json()
return returns.success(user=user)