mirror of
https://github.com/pacnpal/django-anymail.git
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132 lines
4.2 KiB
Python
132 lines
4.2 KiB
Python
from django.conf import settings
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from django.core.exceptions import ImproperlyConfigured
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from django.core.mail.backends.base import BaseEmailBackend
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from django.core.mail.message import sanitize_address
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from django.utils import simplejson as json
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import requests
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class DjrillBackend(BaseEmailBackend):
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"""
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Mandrill API Email Backend
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"""
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def __init__(self, fail_silently=False, **kwargs):
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"""
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Set the API key, API url and set the action url.
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"""
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super(DjrillBackend, self).__init__(**kwargs)
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self.api_key = getattr(settings, "MANDRILL_API_KEY", None)
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self.api_url = getattr(settings, "MANDRILL_API_URL", None)
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self.connection = None
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if not self.api_key:
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raise ImproperlyConfigured("You have not set your mandrill api key "
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"in the settings.py file.")
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if not self.api_url:
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raise ImproperlyConfigured("You have not added the Mandrill api "
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"url to your settings.py")
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self.api_action = self.api_url + "/messages/send.json"
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self.api_verify = self.api_url + "/users/verify-sender.json"
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def open(self, sender):
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"""
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"""
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self.connection = None
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valid_sender = requests.post(
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self.api_verify, data={"key": self.api_key, "email": sender})
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if valid_sender.status_code == 200:
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data = json.loads(valid_sender.content)
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if data["is_enabled"]:
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self.connection = True
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return True
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else:
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if not self.fail_silently:
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raise
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def send_messages(self, email_messages):
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if not email_messages:
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return
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num_sent = 0
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for message in email_messages:
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self.open(message.from_email)
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if not self.connection:
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return
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sent = self._send(message)
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if sent:
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num_sent += 1
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return num_sent
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def _send(self, message):
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if not message.recipients():
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return False
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self.sender = sanitize_address(message.from_email, message.encoding)
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recipients_list = [sanitize_address(addr, message.encoding)
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for addr in message.recipients()]
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from email.utils import parseaddr
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self.recipients = [{"email": e, "name": n} for n,e in [
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parseaddr(r) for r in recipients_list]]
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self.msg_dict = self._build_standard_message_dict(message)
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if getattr(message, "alternative_subtype", None):
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if message.alternative_subtype == "mandrill":
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if message.alternatives:
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self._add_alternatives(message)
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djrill_it = requests.post(self.api_action, data=json.dumps({
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"key": self.api_key,
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"message": self.msg_dict
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}))
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if djrill_it.status_code != 200:
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if not self.fail_silently:
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raise
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return False
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return True
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def _build_standard_message_dict(self, message):
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"""
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Build standard message dict.
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Builds the standard dict that Django's send_mail and send_mass_mail
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use by default. Standard text email messages sent through Django will
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still work through Mandrill.
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"""
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return {
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"text": message.body,
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"subject": message.subject,
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"from_email": self.sender,
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"from_name": message.from_name,
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"to": self.recipients
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}
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def _add_alternatives(self, message):
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"""
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There can be only one! ... alternative attachment.
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Since mandrill does not accept image attachments or anything other
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than HTML, the assumption is the only thing you are attaching is
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the HTML output for your email.
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"""
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if len(message.alternatives) > 1:
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raise ImproperlyConfigured(
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"Mandrill only accepts plain text and html emails. Please "
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"check the alternatives you have attached to your message.")
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self.msg_dict.update({
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"html": message.alternatives[0][0],
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"tags": message.tags,
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"track_opens": message.track_opens,
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"track_clicks": message.track_clicks
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})
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