allow sending newsletter

newsletter/models.py

 # -*- coding: utf8 -*-
 
+import datetime
 import hashlib
 import random
+import smtplib
 import subprocess
 
+from email.mime.multipart import MIMEMultipart
+from email.mime.text import MIMEText
+
+import html2text
+
 from django.db import models
 
 from django.template import loader, Context 
@@ -61,3 +68,31 @@ class Newsletter(models.Model):
     text = RichTextField(_('Text'), null=True, blank=True)
 
     expedition_datetime = models.DateTimeField(_('Expedition Date/time'), null=True, blank=True)
+
+    def send(self):
+        msg = MIMEMultipart('alternative')
+        msg['Subject'] = self.subject
+        msg['From'] = settings.NEWSLETTER_SENDER
+        if settings.DEBUG:
+            msg['To'] = 'fred@localhost'
+        else:
+            msg['To'] = '%s@%s' % (settings.NEWSLETTER_NAME, settings.NEWSLETTER_DOMAIN)
+
+        h2t = html2text.HTML2Text()
+        h2t.unicode_snob = True
+        html = self.text.encode('utf-8')
+        if settings.NEWSLETTER_STYLE:
+            html += '''\n<style type="text/css">\n%s\n</style>''' % settings.NEWSLETTER_STYLE
+
+        part1 = MIMEText(h2t.handle(self.text).encode('utf-8'), 'plain', _charset='utf-8')
+        part2 = MIMEText(html, 'html', _charset='utf-8')
+
+        msg.attach(part1)
+        msg.attach(part2)
+
+        s = smtplib.SMTP('localhost')
+        s.sendmail(msg['From'], msg['To'], msg.as_string())
+        s.quit()
+
+        self.expedition_datetime = datetime.datetime.now()
+        self.save()

newsletter/templates/newsletter/newsletter_detail.html

 {% extends "base.html" %}
 
 {% block appbar %}
-<h2>{{ object.date }}</h2>
+<h2>{{ object.date }} - {{ object.subject }}</h2>
 {% endblock %}
 
 {% block content %}
@@ -9,7 +9,7 @@
 {% if perms.newsletter.add_newsletter %}
 <p>
 <a class="big-friendly-button" href="{% url 'newsletter-edit' pk=object.id %}">Modifier</a>
-<a class="big-friendly-button" href="#">Envoyer</a>
+<a class="big-friendly-button" href="{% url 'newsletter-send' pk=object.id %}">Envoyer</a>
 </p>
 {% endif %}
 

newsletter/urls.py

@@ -15,4 +15,5 @@ management_patterns = patterns('newsletter.views',
     url(r'^add$', 'newsletter_create', name='newsletter-create'),
     url(r'^(?P<pk>\d+)/$', 'newsletter_view', name='newsletter-view'),
     url(r'^(?P<pk>\d+)/edit$', 'newsletter_update', name='newsletter-edit'),
+    url(r'^(?P<pk>\d+)/send$', 'newsletter_send', name='newsletter-send'),
 )

newsletter/views.py

 # -*- coding: utf8 -*-
 
+import email
 import hashlib
 import random
 import socket
@@ -8,8 +9,6 @@ import urllib2
 import cookielib
 import datetime
 
-from smtplib import SMTPException 
-
 from django.conf import settings
 from django.core.exceptions import PermissionDenied
 from django.core.urlresolvers import reverse_lazy
@@ -17,7 +16,7 @@ from django.db import models, IntegrityError
 from django.shortcuts import get_object_or_404
 from django.utils.translation import ugettext as _
 
-from django.views.generic.base import TemplateView
+from django.views.generic.base import TemplateView, RedirectView
 from django.views.generic.detail import DetailView
 from django.views.generic.list import ListView
 from django.views.generic.edit import CreateView, UpdateView
@@ -131,6 +130,17 @@ class NewsletterUpdateView(UpdateView):
 newsletter_update = NewsletterUpdateView.as_view()
 
 
+class NewsletterSendView(RedirectView):
+    def get_redirect_url(self, pk):
+        if not self.request.user.has_perm('newsletter.add_newsletter'):
+            raise PermissionDenied()
+
+        newsletter = get_object_or_404(Newsletter, pk=pk)
+        newsletter.send()
+        return reverse_lazy('newsletter-list')
+
+newsletter_send = NewsletterSendView.as_view()
+
 @csrf_exempt
 @to_json('api')
 def stats(request) :