from collections import OrderedDict from datetime import datetime import hmac import base64 from OpenSSL import crypto from django.shortcuts import render from django.core.urlresolvers import reverse_lazy from django.views.generic import TemplateView, View from django.http import HttpResponse, HttpResponseRedirect from django.shortcuts import render from django.db import transaction, DataError from django.utils.translation import ugettext as _ from django.conf import settings from counter.models import Product, Customer, Counter from eboutic.models import Basket, Invoice, BasketItem, InvoiceItem # Create your views here. class EbouticMain(TemplateView): template_name = 'eboutic/eboutic_main.jinja' def sum_basket(request): total = 0 for pid,infos in request.session['basket'].items(): total += infos['price'] * infos['qty'] return total / 100 def get(self, request, *args, **kwargs): if 'basket' not in request.session.keys(): # Init the basket session entry request.session['basket'] = {} request.session['basket_total'] = 0 return super(EbouticMain, self).get(request, *args, **kwargs) def post(self, request, *args, **kwargs): if 'basket' not in request.session.keys(): # Init the basket session entry request.session['basket'] = {} request.session['basket_total'] = 0 if 'add_product' in request.POST['action']: self.add_product(request) elif 'del_product' in request.POST['action']: self.del_product(request) elif 'pay' in request.POST['action']: self.ask_payment(request) return self.render_to_response(self.get_context_data(**kwargs)) def get_price(self, pid): return Product.objects.filter(pk=pid).first().selling_price def add_product(self, request, q = 1, p=None): """ Add a product to the basket """ pid = p or request.POST['product_id'] pid = str(pid) price = self.get_price(pid) total = EbouticMain.sum_basket(request) if pid in request.session['basket']: request.session['basket'][pid]['qty'] += q else: request.session['basket'][pid] = {'qty': q, 'price': int(price*100)} request.session.modified = True return True def del_product(self, request): """ Delete a product from the basket """ pid = str(request.POST['product_id']) if pid in request.session['basket']: request.session['basket'][pid]['qty'] -= 1 if request.session['basket'][pid]['qty'] <= 0: del request.session['basket'][pid] else: request.session['basket'][pid] = 0 request.session.modified = True def get_context_data(self, **kwargs): kwargs = super(EbouticMain, self).get_context_data(**kwargs) kwargs['basket_total'] = EbouticMain.sum_basket(self.request) kwargs['eboutic'] = Counter.objects.filter(type="EBOUTIC").first() return kwargs class EbouticCommand(TemplateView): template_name = 'eboutic/eboutic_makecommand.jinja' def get(self, request, *args, **kwargs): return HttpResponseRedirect(reverse_lazy('eboutic:main', args=self.args, kwargs=kwargs)) def post(self, request, *args, **kwargs): if 'basket' not in request.session.keys(): return HttpResponseRedirect(reverse_lazy('eboutic:main', args=self.args, kwargs=kwargs)) if self.make_basket(request): kwargs['basket'] = self.basket return self.render_to_response(self.get_context_data(**kwargs)) def make_basket(self, request): b = None if 'basket_id' in request.session.keys(): b = Basket.objects.filter(id=request.session['basket_id']).first() if b is None: b = Basket() b.user = request.user b.save() request.session['basket_id'] = b.id request.session.modified = True b.items.all().delete() for pid,infos in request.session['basket'].items(): BasketItem(basket=b, product_name=Product.objects.filter(id=int(pid)).first().name, quantity=infos['qty'], product_unit_price=infos['price']/100).save() self.basket = b return True def get_context_data(self, **kwargs): kwargs = super(EbouticCommand, self).get_context_data(**kwargs) kwargs['et_request'] = OrderedDict() kwargs['et_request']['PBX_SITE'] = settings.SITH_EBOUTIC_PBX_SITE kwargs['et_request']['PBX_RANG'] = settings.SITH_EBOUTIC_PBX_RANG kwargs['et_request']['PBX_IDENTIFIANT'] = settings.SITH_EBOUTIC_PBX_IDENTIFIANT kwargs['et_request']['PBX_TOTAL'] = int(self.basket.get_total()*100) kwargs['et_request']['PBX_DEVISE'] = 978 # This is Euro. ET support only this value anyway kwargs['et_request']['PBX_CMD'] = "CMD_"+str(self.basket.id) kwargs['et_request']['PBX_PORTEUR'] = self.basket.user.email kwargs['et_request']['PBX_RETOUR'] = "Amount:M;BasketID:R;Auto:A;Error:E;Sig:K" kwargs['et_request']['PBX_HASH'] = "SHA512" kwargs['et_request']['PBX_TIME'] = str(datetime.now().replace(microsecond=0).isoformat('T')) kwargs['et_request']['PBX_HMAC'] = hmac.new(settings.SITH_EBOUTIC_HMAC_KEY, bytes("&".join(["%s=%s"%(k,v) for k,v in kwargs['et_request'].items()]), 'utf-8'), "sha512").hexdigest().upper() return kwargs class EbouticPayWithSith(TemplateView): template_name = 'eboutic/eboutic_payment_result.jinja' def post(self, request, *args, **kwargs): try: with transaction.atomic(): if 'basket_id' not in request.session.keys() or not request.user.is_authenticated(): return HttpResponseRedirect(reverse_lazy('eboutic:main', args=self.args, kwargs=kwargs)) b = Basket.objects.filter(id=request.session['basket_id']).first() if b is None: return HttpResponseRedirect(reverse_lazy('eboutic:main', args=self.args, kwargs=kwargs)) c = Customer.objects.filter(user__id=b.user.id).first() if c is None: return HttpResponseRedirect(reverse_lazy('eboutic:main', args=self.args, kwargs=kwargs)) kwargs['not_enough'] = True if c.amount < b.get_total(): raise DataError(_("You do not have enough money to buy the basket")) else: i = Invoice() i.user = b.user i.payment_method = "SITH_ACCOUNT" i.save() for it in b.items.all(): InvoiceItem(invoice=i, product_name=it.product_name, product_unit_price=it.product_unit_price, quantity=it.quantity).save() i.validate() kwargs['not_enough'] = False request.session.pop('basket_id', None) request.session.pop('basket', None) except DataError as e: kwargs['not_enough'] = True return self.render_to_response(self.get_context_data(**kwargs)) class EtransactionAutoAnswer(View): def get(self, request, *args, **kwargs): if (not 'Amount' in request.GET.keys() or not 'BasketID' in request.GET.keys() or not 'Auto' in request.GET.keys() or not 'Error' in request.GET.keys() or not 'Sig' in request.GET.keys()): return HttpResponse("Bad arguments", status=400) key = crypto.load_publickey(crypto.FILETYPE_PEM, settings.SITH_EBOUTIC_PUB_KEY) cert = crypto.X509() cert.set_pubkey(key) sig = base64.b64decode(request.GET['Sig']) try: crypto.verify(cert, sig, '&'.join(request.META['QUERY_STRING'].split('&')[:-1]), "sha1") except: return HttpResponse("Bad signature", status=400) if request.GET['Error'] == "00000": with transaction.atomic(): b = Basket.objects.filter(id=request.GET['BasketID']).first() if b is None: return HttpResponse("Basket does not exists", status=400) i = Invoice() i.user = b.user i.payment_method = "CREDIT_CARD" i.save() for it in b.items.all(): InvoiceItem(invoice=i, product_name=it.product_name, product_unit_price=it.product_unit_price, quantity=it.quantity).save() i.validate() return HttpResponse("Payment validated") else: return HttpResponse("Payment failed with error: "+request.GET['Error'])