src/contact/mailing.py

   1 # -*- coding: utf-8 -*-
   2
   3 from hashlib import md5
   4
   5 from django.conf import settings
   6 from mailchimp3 import MailChimp
   7 from mailchimp3.mailchimpclient import MailChimpError
   8
   9
  10 def subscriber_hash(email):
  11     return md5(email).hexdigest()
  12
  13
  14 def remove_from_groups(email, client):
  15     group_ids = []
  16     categories = client.lists.interest_categories.all(list_id=settings.MAILCHIMP_LIST_ID)['categories']
  17     for category in categories:
  18         groups = client.lists.interest_categories.interests.all(
  19             list_id=settings.MAILCHIMP_LIST_ID, category_id=category['id'])['interests']
  20         group_ids += [group['id'] for group in groups]
  21     interests = {group_id: False for group_id in group_ids}
  22     client.lists.members.update(
  23          settings.MAILCHIMP_LIST_ID, subscriber_hash(email),
  24          data={'interests': interests})
  25
  26
  27 def subscribe(email, mailing_lists=None):
  28     client = MailChimp(mc_api=settings.MAILCHIMP_API_KEY, timeout=10.0)
  29     try:
  30         member = client.lists.members.get(settings.MAILCHIMP_LIST_ID, subscriber_hash(email))
  31     except MailChimpError:
  32         pass
  33     else:
  34         if member['status'] != 'subscribed':
  35             remove_from_groups(email, client)
  36     mailing_lists = mailing_lists or [settings.MAILCHIMP_DEFAULT_GROUP]
  37     interests = {
  38         settings.MAILCHIMP_GROUP_IDS[mailing_list]: True
  39         for mailing_list in mailing_lists
  40         if mailing_list in settings.MAILCHIMP_GROUP_IDS
  41     }
  42     client.lists.members.create_or_update(
  43         settings.MAILCHIMP_LIST_ID, subscriber_hash(email),
  44         data={
  45             'email_address': email,
  46             'status_if_new': 'subscribed',
  47             'status': 'subscribed',
  48             'interests': interests,
  49         }
  50     )