envelope/core/views/callbacks.py

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2022-10-12 06:22:22 +00:00
import logging
from datetime import datetime
import stripe
from django.conf import settings
from django.http import HttpResponse, JsonResponse
from django.views.decorators.csrf import csrf_exempt
from rest_framework.parsers import JSONParser
from rest_framework.views import APIView
from core.models import Plan, Session, User
logger = logging.getLogger(__name__)
class Callback(APIView):
parser_classes = [JSONParser]
@csrf_exempt
def post(self, request):
payload = request.body
sig_header = request.META["HTTP_STRIPE_SIGNATURE"]
try:
stripe.Webhook.construct_event(
payload, sig_header, settings.STRIPE_ENDPOINT_SECRET
)
except ValueError:
# Invalid payload
logger.error("Invalid payload")
return HttpResponse(status=400)
except stripe.error.SignatureVerificationError:
# Invalid signature
logger.error("Invalid signature")
return HttpResponse(status=400)
if request.data is None:
return JsonResponse({"success": False}, status=500)
if "type" in request.data.keys():
rtype = request.data["type"]
if rtype == "checkout.session.completed":
session = request.data["data"]["object"]["id"]
subscription_id = request.data["data"]["object"]["subscription"]
session_map = Session.objects.get(session=session)
if not session_map:
return JsonResponse({"success": False}, status=500)
user = session_map.user
session_map.subscription_id = subscription_id
session_map.save()
if rtype == "customer.subscription.updated":
stripe_id = request.data["data"]["object"]["customer"]
if not stripe_id:
logging.error("No stripe id")
return JsonResponse({"success": False}, status=500)
user = User.objects.get(stripe_id=stripe_id)
# ssubscription_active
subscription_id = request.data["data"]["object"]["id"]
sessions = Session.objects.filter(user=user)
session = None
for session_iter in sessions:
if session_iter.subscription_id == subscription_id:
session = session_iter
if not session:
logging.error(
f"No session found for subscription id {subscription_id}"
)
return JsonResponse({"success": False}, status=500)
# query Session objects
# iterate and check against product_id
session.request = request.data["request"]["id"]
product_id = request.data["data"]["object"]["plan"]["id"]
plan = Plan.objects.get(product_id=product_id)
if not plan:
logging.error(f"Plan not found: {product_id}")
return JsonResponse({"success": False}, status=500)
session.plan = plan
session.save()
elif rtype == "payment_intent.succeeded":
customer = request.data["data"]["object"]["customer"]
user = User.objects.get(stripe_id=customer)
if not user:
logging.error(f"No user found for customer: {customer}")
return JsonResponse({"success": False}, status=500)
session = Session.objects.get(request=request.data["request"]["id"])
user.plans.add(session.plan)
user.last_payment = datetime.utcnow()
user.save()
elif rtype == "customer.subscription.deleted":
customer = request.data["data"]["object"]["customer"]
user = User.objects.get(stripe_id=customer)
if not user:
logging.error(f"No user found for customer {customer}")
return JsonResponse({"success": False}, status=500)
product_id = request.data["data"]["object"]["plan"]["id"]
plan = Plan.objects.get(product_id=product_id)
user.plans.remove(plan)
user.save()
else:
return JsonResponse({"success": False}, status=500)
return JsonResponse({"success": True})