1 files changed, 83 insertions, 0 deletions
diff --git a/app/lttr/mailer.py b/app/lttr/mailer.py
new file mode 100644
index 0000000..40f1003
--- /dev/null
+++ b/app/lttr/mailer.py
@@ -0,0 +1,83 @@
+from time import sleep
+from email.mime.multipart import MIMEMultipart
+from email.mime.text import MIMEText
+
+from django.core.mail import EmailMultiAlternatives
+from django.template.loader import render_to_string
+from django.utils.encoding import smart_str
+
+from .models import Subscriber, MailingStatus
+
+
+
+class SendShit():
+
+    def __init__(self, newsletter, mailing, verbose=0):
+        self.verbose = verbose
+        self.newsletter = newsletter
+        self.mailing = mailing 
+        all_subscribers = Subscriber.objects.filter(newsletter=self.newsletter,subscribed=True,unsubscribed=False).values('email_field')
+        already_sent = MailingStatus.objects.filter(newsletter_mailing=self.mailing,status=1).values('subscriber__email_field')
+        self.subscribers = all_subscribers.difference(already_sent)
+
+
+    def send_mailings(self):
+        mailings = len(self.subscribers)
+        print("mailing newsletter to %s subscribers"%mailings)
+        i = 1
+        for s in self.subscribers:
+            subscriber = Subscriber.objects.get(newsletter=self.newsletter,email_field=s['email_field'],subscribed=True,unsubscribed=False)
+            status = None
+            if self.verbose == 1:
+                print("mailing newsletter %s of %s to %s" %(i,mailings,subscriber))
+            status, created = MailingStatus.objects.get_or_create(
+                newsletter_mailing=self.mailing, 
+                subscriber=subscriber,
+            )
+            # New instance, try sending
+            if created:
+                email = self.build_message(subscriber)
+                status.status=1
+                if self.verbose==1:
+                    print("successfully sent %s the newsletter mailing %s"%(subscriber, self.mailing))
+                status.save()
+            else:
+                # not new, check if error and resend or just continue
+                if status.status == 2:
+                    if self.verbose==1:
+                        print("retrying error")
+                    try: 
+                        email = self.build_message(subscriber)
+                        status.status=1
+                        if self.verbose==1:
+                            print("successfully sent %s the newsletter mailing %s"%(subscriber, self.mailing))
+                    except:
+                        status.status=2
+                        if self.verbose == 1:
+                            print("failed to send %s to %s"%(self.mailing, subscriber))
+                status.save()
+            i=i+1
+            sleep(2)
+
+    
+    def build_message(self, subscriber):
+        """
+        Build the email as plain text with a 
+        a multipart alternative for HTML 
+        """
+        subject = smart_str("%s: %s — %s" %(self.mailing.newsletter.title, self.mailing.get_issue_str(), self.mailing.title))
+        from_email, to = 'Scott Gilbertson <sng@luxagraf.net>', subscriber.get_email()
+        text_content = render_to_string(self.newsletter.get_template_plain(), {'object': self.mailing, 'subscriber':subscriber})
+        html_content = render_to_string(self.newsletter.get_template_html(), {'object': self.mailing, 'subscriber':subscriber})
+        #print(html_content)
+        msg = EmailMultiAlternatives(subject, text_content, from_email, [to])
+        msg.attach_alternative(html_content, "text/html")
+        #msg.Header.Add('List-Unsubscribe', '<https://luxagraf.net%s>' % subscriber.unsubscribe_activate_url)
+        msg.send()
+
+        '''
+        for header, value in self.newsletter.server.custom_headers.items():
+            message[header] = value
+        '''
+        return msg
+