paypal subscriptions - stub

[wolnelektury.git] / src / paypal / views.py

diff --git a/src/paypal/views.py b/src/paypal/views.py
new file mode 100644 (file)
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+++ b/src/paypal/views.py
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+# -*- coding: utf-8 -*-
+# This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
+# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
+#
+from decimal import Decimal
+
+from django.contrib.auth.decorators import login_required
+from django.http import Http404
+from django.http.response import HttpResponseRedirect
+from django.shortcuts import render
+
+from paypal.forms import PaypalSubscriptionForm
+from paypal.rest import execute_agreement, check_agreement, agreement_approval_url, PaypalError
+from paypal.models import BillingAgreement as BillingAgreementModel, BillingPlan
+
+
+@login_required
+def paypal_form(request):
+    if request.POST:
+        form = PaypalSubscriptionForm(data=request.POST)
+        if form.is_valid():
+            amount = form.cleaned_data['amount']
+            try:
+                approval_url = agreement_approval_url(amount)
+            except PaypalError as e:
+                return render(request, 'paypal/error_page.html', {'error': e.message})
+            return HttpResponseRedirect(approval_url)
+    else:
+        form = PaypalSubscriptionForm()
+    return render(request, 'paypal/form.html', {'form': form})
+
+
+@login_required
+def paypal_return(request):
+    token = request.GET.get('token')
+    if not token:
+        raise Http404
+    if not BillingAgreementModel.objects.filter(token=token):
+        resource = execute_agreement(token)
+        if resource.id:
+            amount = int(Decimal(resource.plan.payment_definitions[0].amount['value']))
+            plan = BillingPlan.objects.get(amount=amount)
+            active = check_agreement(resource.id)
+            BillingAgreementModel.objects.create(
+                agreement_id=resource.id, user=request.user, plan=plan, active=active, token=token)
+    return render(request, 'paypal/return.html', {'resource': resource})
+
+
+def paypal_cancel(request):
+    return render(request, 'paypal/cancel.html', {})