zulip/zerver/lib/send_email.py

59 lines
2.7 KiB
Python

from django.conf import settings
from django.core.mail import EmailMultiAlternatives
from django.template import loader, TemplateDoesNotExist
from django.utils.timezone import now as timezone_now
from zerver.models import UserProfile, ScheduledJob
import datetime
from email.utils import parseaddr
import ujson
from typing import Any, Dict, Iterable, List, Mapping, Optional, Text
def display_email(user):
# type: (UserProfile) -> Text
# Change to '%s <%s>' % (user.full_name, user.email) once
# https://github.com/zulip/zulip/issues/4676 is resolved
return user.email
def send_email(template_prefix, to_email, from_email=None, reply_to_email=None, context={}):
# type: (str, Text, Optional[Text], Optional[Text], Dict[str, Any]) -> bool
subject = loader.render_to_string(template_prefix + '.subject',
context=context, using='Jinja2_plaintext').strip()
message = loader.render_to_string(template_prefix + '.txt',
context=context, using='Jinja2_plaintext')
# Remove try/expect once https://github.com/zulip/zulip/issues/4691 is resolved.
try:
html_message = loader.render_to_string(template_prefix + '.html', context)
except TemplateDoesNotExist:
html_message = None
if from_email is None:
from_email = settings.NOREPLY_EMAIL_ADDRESS
reply_to = None
if reply_to_email is not None:
reply_to = [reply_to_email]
mail = EmailMultiAlternatives(subject, message, from_email, [to_email], reply_to=reply_to)
if html_message is not None:
mail.attach_alternative(html_message, 'text/html')
return mail.send() > 0
def send_email_to_user(template_prefix, user, from_email=None, context={}):
# type: (str, UserProfile, Optional[Text], Dict[str, Text]) -> bool
return send_email(template_prefix, display_email(user), from_email=from_email, context=context)
# Returns None instead of bool so that the type signature matches the third
# argument of zerver.lib.queue.queue_json_publish
def send_email_from_dict(email_dict):
# type: (Mapping[str, Any]) -> None
send_email(**dict(email_dict))
def send_future_email(template_prefix, to_email, from_email=None, context={},
delay=datetime.timedelta(0)):
# type: (str, Text, Optional[Text], Dict[str, Any], datetime.timedelta) -> None
email_fields = {'template_prefix': template_prefix, 'to_email': to_email, 'from_email': from_email,
'context': context}
ScheduledJob.objects.create(type=ScheduledJob.EMAIL, filter_string=parseaddr(to_email)[1],
data=ujson.dumps(email_fields),
scheduled_timestamp=timezone_now() + delay)