Split newsletter forms.

[wolnelektury.git] / src / contact / mailing.py

diff --git a/src/contact/mailing.py b/src/contact/mailing.py
index 2034766..4dee9c5 100644 (file)
--- a/src/contact/mailing.py
+++ b/src/contact/mailing.py
@@ -1,5 +1,6 @@
-# -*- 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 hashlib import md5
 
 from django.conf import settings
@@ -8,7 +9,7 @@ from mailchimp3.mailchimpclient import MailChimpError
 
 
 def subscriber_hash(email):
-    return md5(email).hexdigest()
+    return md5(email.encode('utf-8')).hexdigest()
 
 
 def remove_from_groups(email, client):
@@ -48,3 +49,26 @@ def subscribe(email, mailing_lists=None):
             'interests': interests,
         }
     )
+
+
+def unsubscribe(email, mailing_lists=None):
+    client = MailChimp(mc_api=settings.MAILCHIMP_API_KEY, timeout=10.0)
+    try:
+        member = client.lists.members.get(settings.MAILCHIMP_LIST_ID, subscriber_hash(email))
+    except MailChimpError:
+        return
+    else:
+        if member['status'] != 'subscribed':
+            return
+    mailing_lists = mailing_lists or settings.MAILCHIMP_GROUP_IDS
+    interests = {
+        settings.MAILCHIMP_GROUP_IDS[mailing_list]: False
+        for mailing_list in mailing_lists
+        if mailing_list in settings.MAILCHIMP_GROUP_IDS
+    }
+    client.lists.members.update(
+        settings.MAILCHIMP_LIST_ID, subscriber_hash(email),
+        data={
+            'interests': interests,
+        }
+    )