2checkout ipn validation response python
import hmac
import hashlib
import datetime
from django.http import HttpResponse
from django.views.decorators.csrf import csrf_exempt
def hmac_md5(key, value):
message = value.encode('utf-8')
return hmac.new(key.encode('utf-8'), message, digestmod=hashlib.md5).hexdigest()
@csrf_exempt
def subscription_listener(request):
if request.method == "GET":
return HttpResponse("Hello")
if request.method == "POST":
pass_str = "SECRET_KEY_HERE"
DATE = datetime.datetime.now().strftime("%Y%m%d%H%M%S")
original_dict = dict(request.POST)
base_string_for_return_hash = str(len(original_dict['IPN_PID[]'][0])) + str(
original_dict['IPN_PID[]'][0]) + str(
len(original_dict['IPN_PNAME[]'][0])) + str(original_dict['IPN_PNAME[]'][0]) + str(
len(original_dict['IPN_DATE'][0])) + str(original_dict['IPN_DATE'][0]) + str(len(DATE)) + str(DATE)
hashed = hmac_md5(pass_str, base_string_for_return_hash)
response = "<EPAYMENT>{}|{}</EPAYMENT>".format(DATE, hashed)
return HttpResponse(response)