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seahub/seahub/api2/endpoints/notifications.py
2020-03-19 12:44:50 +08:00

150 lines
4.8 KiB
Python

# Copyright (c) 2012-2016 Seafile Ltd.
import logging
from rest_framework.authentication import SessionAuthentication
from rest_framework.permissions import IsAuthenticated
from rest_framework.response import Response
from rest_framework.views import APIView
from rest_framework import status
from django.core.cache import cache
from seahub.api2.authentication import TokenAuthentication
from seahub.api2.throttling import UserRateThrottle
from seahub.notifications.models import UserNotification
from seahub.notifications.models import get_cache_key_of_unseen_notifications
from seahub.notifications.views import add_notice_from_info
from seahub.notifications.utils import update_notice_detail
from seahub.api2.utils import api_error, to_python_boolean
from seahub.utils.timeutils import datetime_to_isoformat_timestr
logger = logging.getLogger(__name__)
json_content_type = 'application/json; charset=utf-8'
class NotificationsView(APIView):
authentication_classes = (TokenAuthentication, SessionAuthentication)
permission_classes = (IsAuthenticated,)
throttle_classes = (UserRateThrottle,)
def get(self, request):
""" used for get notifications
Permission checking:
1. login user.
"""
result = {}
username = request.user.username
try:
per_page = int(request.GET.get('per_page', ''))
page = int(request.GET.get('page', ''))
except ValueError:
per_page = 25
page = 1
start = (page - 1) * per_page
end = page * per_page
notice_list = UserNotification.objects.get_user_notifications(username)[start:end]
result_notices = update_notice_detail(request, notice_list)
notification_list = []
for i in result_notices:
if i.detail is not None:
notice = {}
notice['id'] = i.id
notice['type'] = i.msg_type
notice['detail'] = i.detail
notice['time'] = datetime_to_isoformat_timestr(i.timestamp)
notice['seen'] = i.seen
notification_list.append(notice)
cache_key = get_cache_key_of_unseen_notifications(username)
unseen_count_from_cache = cache.get(cache_key, None)
# for case of count value is `0`
if unseen_count_from_cache is not None:
result['unseen_count'] = unseen_count_from_cache
else:
unseen_count = UserNotification.objects.filter(to_user=username, seen=False).count()
result['unseen_count'] = unseen_count
cache.set(cache_key, unseen_count)
total_count = UserNotification.objects.filter(to_user=username).count()
result['notification_list'] = notification_list
result['count'] = total_count
return Response(result)
def put(self, request):
""" currently only used for mark all notifications seen
Permission checking:
1. login user.
"""
username = request.user.username
unseen_notices = UserNotification.objects.get_user_notifications(username,
seen=False)
for notice in unseen_notices:
notice.seen = True
notice.save()
cache_key = get_cache_key_of_unseen_notifications(username)
cache.delete(cache_key)
return Response({'success': True})
class NotificationView(APIView):
authentication_classes = (TokenAuthentication, SessionAuthentication)
permission_classes = (IsAuthenticated,)
throttle_classes = (UserRateThrottle,)
def put(self, request):
""" currently only used for mark a notification seen
Permission checking:
1. login user.
"""
notice_id = request.data.get('notice_id')
# argument check
try:
int(notice_id)
except Exception as e:
error_msg = 'notice_id invalid.'
logger.error(e)
return api_error(status.HTTP_400_BAD_REQUEST, error_msg)
# resource check
try:
notice = UserNotification.objects.get(id=notice_id)
except UserNotification.DoesNotExist as e:
logger.error(e)
error_msg = 'Notification %s not found.' % notice_id
return api_error(status.HTTP_404_NOT_FOUND, error_msg)
# permission check
username = request.user.username
if notice.to_user != username:
error_msg = 'Permission denied.'
return api_error(status.HTTP_403_FORBIDDEN, error_msg)
if not notice.seen:
notice.seen = True
notice.save()
cache_key = get_cache_key_of_unseen_notifications(username)
cache.delete(cache_key)
return Response({'success': True})