newsletter/views.py

   1 # -*- coding: utf8 -*-
   2
   3 import email
   4 import hashlib
   5 import random
   6 import socket
   7 import urllib
   8 import urllib2
   9 import cookielib
  10 import datetime
  11
  12 from django.conf import settings
  13 from django.core.exceptions import PermissionDenied
  14 from django.core.urlresolvers import reverse_lazy
  15 from django.db import models, IntegrityError
  16 from django.http import JsonResponse
  17 from django.shortcuts import get_object_or_404
  18 from django.utils.translation import ugettext as _
  19
  20 from django.views.generic.base import TemplateView, RedirectView
  21 from django.views.generic.detail import DetailView
  22 from django.views.generic.list import ListView
  23 from django.views.generic.edit import CreateView, UpdateView
  24 from django.views.decorators.csrf import csrf_exempt
  25
  26 from .forms import SubscribeForm, NewsletterForm
  27 from .models import Subscriber, Newsletter
  28
  29
  30 class SubscribeView(CreateView):
  31     form_class = SubscribeForm
  32     model = Subscriber
  33
  34     success_url = 'thanks'
  35 subscribe = csrf_exempt(SubscribeView.as_view())
  36
  37
  38 class ThanksView(TemplateView):
  39     template_name = 'newsletter/thanks.html'
  40 thanks = ThanksView.as_view()
  41
  42
  43 class ConfirmationView(TemplateView):
  44     template_name = 'newsletter/done.html'
  45
  46     def get_context_data(self, token, **kwargs):
  47         context = super(ConfirmationView, self).get_context_data(**kwargs)
  48         subscriber = get_object_or_404(Subscriber, password=token, is_validated=False)
  49         subscriber.is_validated = True
  50         subscriber.save()
  51         return context
  52 confirmation = ConfirmationView.as_view()
  53
  54
  55 def unsubscription(request) :
  56     UNSUBSCRIPTION_MESSAGE = _("Enter your email for unsunscribe to the newsletter.")
  57     UNSUBSCRIPTION_CONFIRMATION_MESSAGE = _("You're now unsubscribed")
  58
  59     if request.method == 'GET' :
  60         form = SubscriptionForm()
  61         return render(request, 'unsubscription_form.html', {'form' : form, 'message' : UNSUBSCRIPTION_MESSAGE})
  62     elif request.method == 'POST' :
  63         form = SubscriptionForm(request.POST)
  64         if form.is_valid() :
  65             cd = form.cleaned_data
  66             try :
  67                 subscriber = Subscriber.objects.get(email = cd['email'])
  68
  69                 cookie_jar = cookielib.CookieJar()
  70                 url_opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cookie_jar))
  71
  72                 login_params = urllib.urlencode({'email' : subscriber.email, 'password' : subscriber.password})
  73                 login_request = urllib2.Request(settings.NEWSLETTER_UNSUBSCRIPTION_URL, login_params)
  74                 url = url_opener.open(login_request)
  75
  76                 unsubscribe_action_url = ("%s/%s" % (settings.NEWSLETTER_UNSUBSCRIPTION_URL, subscriber.email))
  77                 unsubscribe_params = urllib.urlencode({'unsub' : 'Résilier', 'unsubconfirm' : '1'})
  78                 unsubscribe_request = urllib2.Request(unsubscribe_action_url, unsubscribe_params)
  79                 url = url_opener.open(unsubscribe_request)
  80
  81                 url.close()
  82
  83                 subscriber.delete()
  84                 return render(request, 'unsubscription_form.html', {'message' : UNSUBSCRIPTION_CONFIRMATION_MESSAGE})
  85             except Subscriber.DoesNotExist :
  86                 error_message = _("The entered email address does not exist. Please try another one.")
  87                 return render(request, 'unsubscription_form.html', {'form' : form, 'message' : error_message})
  88
  89
  90 class NewsletterCreateView(CreateView):
  91     form_class = NewsletterForm
  92     model = Newsletter
  93
  94     success_url = reverse_lazy('newsletter-list')
  95
  96     def get_form(self, *args, **kwargs):
  97         if not self.request.user.has_perm('newsletter.add_newsletter'):
  98             raise PermissionDenied()
  99         return super(NewsletterCreateView, self).get_form(*args, **kwargs)
 100
 101     def get_initial(self):
 102         initial = super(NewsletterCreateView, self).get_initial()
 103         initial['date'] = datetime.datetime.today()
 104         return initial
 105
 106 newsletter_create = NewsletterCreateView.as_view()
 107
 108
 109 class NewsletterListView(ListView):
 110     model = Newsletter
 111
 112 newsletter_list = NewsletterListView.as_view()
 113
 114
 115 class NewsletterDetailView(DetailView):
 116     model = Newsletter
 117
 118 newsletter_view = NewsletterDetailView.as_view()
 119
 120 class NewsletterUpdateView(UpdateView):
 121     form_class = NewsletterForm
 122     model = Newsletter
 123
 124     def get_form(self, *args, **kwargs):
 125         if not self.request.user.has_perm('newsletter.add_newsletter'):
 126             raise PermissionDenied()
 127         return super(NewsletterUpdateView, self).get_form(*args, **kwargs)
 128
 129 newsletter_update = NewsletterUpdateView.as_view()
 130
 131
 132 class NewsletterSendView(RedirectView):
 133     permanent = False
 134     def get_redirect_url(self, pk):
 135         if not self.request.user.has_perm('newsletter.add_newsletter'):
 136             raise PermissionDenied()
 137
 138         newsletter = get_object_or_404(Newsletter, pk=pk)
 139         newsletter.send()
 140         return reverse_lazy('newsletter-list')
 141
 142 newsletter_send = NewsletterSendView.as_view()
 143
 144 @csrf_exempt
 145 def stats(request) :
 146     return JsonResponse({'registered': Subscriber.objects.filter(is_registered=True).count()})