gault-millau/apps/utils/views.py

102 lines
4.1 KiB
Python

from rest_framework import generics
from collections import namedtuple
from translation import models as translation_models
from utils import exceptions
from rest_framework.response import Response
# JWT
# Login base view mixin
class JWTViewMixin(generics.GenericAPIView):
"""JWT view mixin"""
ACCESS_TOKEN_HTTP = True
ACCESS_TOKEN_SECURE = False
REFRESH_TOKEN_HTTP = True
REFRESH_TOKEN_SECURE = False
COOKIE = namedtuple('COOKIE', ['key', 'value', 'http', 'secure'])
def _check_locale(self, locale: str):
locale_qs = translation_models.Language.objects.by_locale(locale=locale)
if not locale_qs.exists():
raise exceptions.LocaleNotExisted()
return locale
def _put_data_in_cookies(self,
locale: str,
access_token: str,
refresh_token: str):
"""
CHECK locale in cookies and PUT access and refresh tokens there.
cookies it is list that contain namedtuples
cookies would contain key, value and secure parameters.
"""
COOKIES = list()
# Create locale namedtuple
locale = self.COOKIE(key='locale',
value=locale,
http=True,
secure=False)
COOKIES.append(locale)
# Write to cookie access and refresh token with secure flag
_access_token = self.COOKIE(key='access_token',
value=access_token,
http=self.ACCESS_TOKEN_HTTP,
secure=self.ACCESS_TOKEN_SECURE)
_refresh_token = self.COOKIE(key='refresh_token',
value=refresh_token,
http=self.REFRESH_TOKEN_HTTP,
secure=self.REFRESH_TOKEN_SECURE)
COOKIES.extend((_access_token, _refresh_token))
return COOKIES
def _put_cookies_in_response(self, cookies: list, response: Response):
"""Update COOKIES in response from namedtuple"""
for cookie in cookies:
response.set_cookie(key=cookie.key,
value=cookie.value,
secure=cookie.secure)
return response
def _get_tokens_from_cookies(self, request, cookies: dict = None):
"""Get user tokens from cookies and put in namedtuple"""
_cookies = request.COOKIES or cookies
return [self.COOKIE(key='access_token',
value=_cookies.get('access_token'),
http=self.ACCESS_TOKEN_HTTP,
secure=self.ACCESS_TOKEN_SECURE),
self.COOKIE(key='refresh_token',
value=_cookies.get('refresh_token'),
http=self.REFRESH_TOKEN_HTTP,
secure=self.REFRESH_TOKEN_SECURE)]
def get(self, request, *args, **kwargs):
"""Implement GET method"""
_locale = request.COOKIES.get('locale')
try:
locale = self._check_locale(locale=_locale)
queryset = self.filter_queryset(self.get_queryset())
page = self.paginate_queryset(queryset)
if page is not None:
serializer = self.get_serializer(page, many=True)
response = self.get_paginated_response(serializer.data)
else:
serializer = self.get_serializer(queryset, many=True)
response = Response(serializer.data)
access_token, refresh_token = self._get_tokens_from_cookies(request)
except exceptions.LocaleNotExisted:
raise exceptions.LocaleNotExisted(locale=_locale)
else:
return self._put_cookies_in_response(
cookies=self._put_data_in_cookies(locale=locale,
access_token=access_token,
refresh_token=refresh_token),
response=response)