75 lines
2.3 KiB
Python
75 lines
2.3 KiB
Python
import hashlib
|
|
|
|
from django.conf import settings
|
|
from django.core import mail
|
|
from django.core.mail import EmailMultiAlternatives
|
|
from django.template.loader import render_to_string
|
|
from django.utils.crypto import get_random_string
|
|
|
|
|
|
def hexdigest_sha256(*args):
|
|
|
|
r = hashlib.sha256()
|
|
for arg in args:
|
|
r.update(str(arg).encode('utf-8'))
|
|
|
|
return r.hexdigest()
|
|
|
|
|
|
def get_reply_addr(message_id, dest):
|
|
|
|
if not hasattr(settings, 'REPLY_EMAIL'):
|
|
return []
|
|
|
|
addr = settings.REPLY_EMAIL
|
|
pos = addr.find('@')
|
|
name = addr[:pos]
|
|
domain = addr[pos:]
|
|
key = hexdigest_sha256(settings.SECRET_KEY, message_id, dest.pk)[0:12]
|
|
|
|
return ['%s+%s%s%s%s' % (name, dest.profile.email_token, message_id, key, domain)]
|
|
|
|
|
|
def generate_message_token():
|
|
return get_random_string(length=60, allowed_chars='abcdefghijklmnopqrstuvwxyz0123456789')
|
|
|
|
|
|
def notify_by_email(template, data, subject, sender, dests, message_id, ref=None):
|
|
|
|
if hasattr(settings, 'REPLY_EMAIL') and hasattr(settings, 'REPLY_KEY'):
|
|
data.update({'answering': True})
|
|
|
|
text_message = render_to_string('conversations/emails/%s.txt' % template, data)
|
|
html_message = render_to_string('conversations/emails/%s.html' % template, data)
|
|
|
|
from_email = '{name} <{email}>'.format(
|
|
name=sender.get_full_name() or sender.username,
|
|
email=settings.DEFAULT_FROM_EMAIL)
|
|
|
|
# Generating headers
|
|
headers = {'Message-ID': "<%s.%s>" % (message_id, settings.DEFAULT_FROM_EMAIL)}
|
|
if ref:
|
|
# This email reference a previous one
|
|
headers.update({
|
|
'References': '<%s.%s>' % (ref, settings.DEFAULT_FROM_EMAIL),
|
|
})
|
|
|
|
mails = []
|
|
for dest in dests:
|
|
if not dest.email:
|
|
continue
|
|
|
|
reply_to = get_reply_addr(message_id, dest)
|
|
|
|
mails += [(subject, (text_message, html_message), from_email, [dest.email], reply_to, headers)]
|
|
|
|
messages = []
|
|
for subject, message, from_email, dest_emails, reply_to, headers in mails:
|
|
text_message, html_message = message
|
|
msg = EmailMultiAlternatives(subject, text_message, from_email, dest_emails, reply_to=reply_to,
|
|
headers=headers)
|
|
msg.attach_alternative(html_message, 'text/html')
|
|
messages += [msg]
|
|
with mail.get_connection() as connection:
|
|
connection.send_messages(messages)
|