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re2o/cotisations/payment_methods/comnpay/views.py

116 lines
3.6 KiB
Python

"""Payment
Here are defined some views dedicated to online payement.
"""
from collections import OrderedDict
from django.urls import reverse
from django.shortcuts import redirect, get_object_or_404
from django.contrib.auth.decorators import login_required
from django.contrib import messages
from django.views.decorators.csrf import csrf_exempt
from django.utils.datastructures import MultiValueDictKeyError
from django.utils.translation import ugettext as _
from django.http import HttpResponse, HttpResponseBadRequest
from cotisations.models import Facture
from .comnpay import Transaction
from .models import ComnpayPayment
@csrf_exempt
@login_required
def accept_payment(request, factureid):
"""
The view called when an online payment has been accepted.
"""
invoice = get_object_or_404(Facture, id=factureid)
if invoice.valid:
messages.success(
request,
_("The payment of %(amount)s € has been accepted.") % {
'amount': invoice.prix_total()
}
)
# In case a cotisation was bought, inform the user, the
# cotisation time has been extended too
if any(purchase.type_cotisation
for purchase in invoice.vente_set.all()):
messages.success(
request,
_("The cotisation of %(member_name)s has been \
extended to %(end_date)s.") % {
'member_name': request.user.pseudo,
'end_date': request.user.end_adhesion()
}
)
return redirect(reverse(
'users:profil',
kwargs={'userid': request.user.id}
))
@csrf_exempt
@login_required
def refuse_payment(request):
"""
The view called when an online payment has been refused.
"""
messages.error(
request,
_("The payment has been refused.")
)
return redirect(reverse(
'users:profil',
kwargs={'userid': request.user.id}
))
@csrf_exempt
def ipn(request):
"""
The view called by Comnpay server to validate the transaction.
Verify that we can firmly save the user's action and notify
Comnpay with 400 response if not or with a 200 response if yes
"""
p = Transaction()
order = ('idTpe', 'idTransaction', 'montant', 'result', 'sec', )
try:
data = OrderedDict([(f, request.POST[f]) for f in order])
except MultiValueDictKeyError:
return HttpResponseBadRequest("HTTP/1.1 400 Bad Request")
idTransaction = request.POST['idTransaction']
try:
factureid = int(idTransaction)
except ValueError:
return HttpResponseBadRequest("HTTP/1.1 400 Bad Request")
facture = get_object_or_404(Facture, id=factureid)
payment_method = get_object_or_404(
ComnpayPayment, payment=facture.paiement)
if not p.validSec(data, payment_method.payment_pass):
return HttpResponseBadRequest("HTTP/1.1 400 Bad Request")
result = True if (request.POST['result'] == 'OK') else False
idTpe = request.POST['idTpe']
# Checking that the payment is actually for us.
if not idTpe == payment_method.payment_credential:
return HttpResponseBadRequest("HTTP/1.1 400 Bad Request")
# Checking that the payment is valid
if not result:
# Payment failed: Cancelling the invoice operation
# And send the response to Comnpay indicating we have well
# received the failure information.
return HttpResponse("HTTP/1.1 200 OK")
facture.valid = True
facture.save()
# Everything worked we send a reponse to Comnpay indicating that
# it's ok for them to proceed
return HttpResponse("HTTP/1.0 200 OK")