mirror of https://github.com/zulip/zulip.git
186 lines
8.4 KiB
Python
186 lines
8.4 KiB
Python
from django.conf import settings
|
|
from django.core.mail import EmailMultiAlternatives
|
|
from django.template import loader
|
|
from django.utils.timezone import now as timezone_now
|
|
from django.utils.translation import override as override_language
|
|
from django.template.exceptions import TemplateDoesNotExist
|
|
from zerver.models import UserProfile, ScheduledEmail, get_user_profile_by_id, \
|
|
EMAIL_TYPES, Realm
|
|
|
|
import datetime
|
|
from email.utils import parseaddr, formataddr
|
|
import logging
|
|
import ujson
|
|
|
|
import os
|
|
from typing import Any, Dict, Iterable, List, Mapping, Optional, Tuple
|
|
|
|
from zerver.lib.logging_util import log_to_file
|
|
from confirmation.models import generate_key
|
|
|
|
## Logging setup ##
|
|
|
|
logger = logging.getLogger('zulip.send_email')
|
|
log_to_file(logger, settings.EMAIL_LOG_PATH)
|
|
|
|
class FromAddress:
|
|
SUPPORT = parseaddr(settings.ZULIP_ADMINISTRATOR)[1]
|
|
NOREPLY = parseaddr(settings.NOREPLY_EMAIL_ADDRESS)[1]
|
|
|
|
# Generates an unpredictable noreply address.
|
|
@staticmethod
|
|
def tokenized_no_reply_address() -> str:
|
|
if settings.ADD_TOKENS_TO_NOREPLY_ADDRESS:
|
|
return parseaddr(settings.TOKENIZED_NOREPLY_EMAIL_ADDRESS)[1].format(token=generate_key())
|
|
return FromAddress.NOREPLY
|
|
|
|
def build_email(template_prefix: str, to_user_ids: Optional[List[int]]=None,
|
|
to_emails: Optional[List[str]]=None, from_name: Optional[str]=None,
|
|
from_address: Optional[str]=None, reply_to_email: Optional[str]=None,
|
|
language: Optional[str]=None, context: Optional[Dict[str, Any]]=None
|
|
) -> EmailMultiAlternatives:
|
|
# Callers should pass exactly one of to_user_id and to_email.
|
|
assert (to_user_ids is None) ^ (to_emails is None)
|
|
if to_user_ids is not None:
|
|
to_users = [get_user_profile_by_id(to_user_id) for to_user_id in to_user_ids]
|
|
# Change to formataddr((to_user.full_name, to_user.email)) once
|
|
# https://github.com/zulip/zulip/issues/4676 is resolved
|
|
to_emails = [to_user.delivery_email for to_user in to_users]
|
|
|
|
if context is None:
|
|
context = {}
|
|
|
|
context.update({
|
|
'support_email': FromAddress.SUPPORT,
|
|
'email_images_base_uri': settings.ROOT_DOMAIN_URI + '/static/images/emails',
|
|
'physical_address': settings.PHYSICAL_ADDRESS,
|
|
})
|
|
|
|
def render_templates() -> Tuple[str, str, str]:
|
|
subject = loader.render_to_string(template_prefix + '.subject.txt',
|
|
context=context,
|
|
using='Jinja2_plaintext').strip().replace('\n', '')
|
|
message = loader.render_to_string(template_prefix + '.txt',
|
|
context=context, using='Jinja2_plaintext')
|
|
|
|
try:
|
|
html_message = loader.render_to_string(template_prefix + '.html', context)
|
|
except TemplateDoesNotExist:
|
|
emails_dir = os.path.dirname(template_prefix)
|
|
template = os.path.basename(template_prefix)
|
|
compiled_template_prefix = os.path.join(emails_dir, "compiled", template)
|
|
html_message = loader.render_to_string(compiled_template_prefix + '.html', context)
|
|
return (html_message, message, subject)
|
|
|
|
if not language and to_user_ids is not None:
|
|
language = to_users[0].default_language
|
|
if language:
|
|
with override_language(language):
|
|
# Make sure that we render the email using the target's native language
|
|
(html_message, message, subject) = render_templates()
|
|
else:
|
|
(html_message, message, subject) = render_templates()
|
|
logger.warning("Missing language for email template '{}'".format(template_prefix))
|
|
|
|
if from_name is None:
|
|
from_name = "Zulip"
|
|
if from_address is None:
|
|
from_address = FromAddress.NOREPLY
|
|
from_email = formataddr((from_name, from_address))
|
|
reply_to = None
|
|
if reply_to_email is not None:
|
|
reply_to = [reply_to_email]
|
|
# Remove the from_name in the reply-to for noreply emails, so that users
|
|
# see "noreply@..." rather than "Zulip" or whatever the from_name is
|
|
# when they reply in their email client.
|
|
elif from_address == FromAddress.NOREPLY:
|
|
reply_to = [FromAddress.NOREPLY]
|
|
|
|
mail = EmailMultiAlternatives(subject, message, from_email, to_emails, reply_to=reply_to)
|
|
if html_message is not None:
|
|
mail.attach_alternative(html_message, 'text/html')
|
|
return mail
|
|
|
|
class EmailNotDeliveredException(Exception):
|
|
pass
|
|
|
|
# When changing the arguments to this function, you may need to write a
|
|
# migration to change or remove any emails in ScheduledEmail.
|
|
def send_email(template_prefix: str, to_user_ids: Optional[List[int]]=None,
|
|
to_emails: Optional[List[str]]=None, from_name: Optional[str]=None,
|
|
from_address: Optional[str]=None, reply_to_email: Optional[str]=None,
|
|
language: Optional[str]=None, context: Dict[str, Any]={}) -> None:
|
|
mail = build_email(template_prefix, to_user_ids=to_user_ids, to_emails=to_emails,
|
|
from_name=from_name, from_address=from_address,
|
|
reply_to_email=reply_to_email, language=language, context=context)
|
|
template = template_prefix.split("/")[-1]
|
|
logger.info("Sending %s email to %s" % (template, mail.to))
|
|
|
|
if mail.send() == 0:
|
|
logger.error("Error sending %s email to %s" % (template, mail.to))
|
|
raise EmailNotDeliveredException
|
|
|
|
def send_email_from_dict(email_dict: Mapping[str, Any]) -> None:
|
|
send_email(**dict(email_dict))
|
|
|
|
def send_future_email(template_prefix: str, realm: Realm, to_user_ids: Optional[List[int]]=None,
|
|
to_emails: Optional[List[str]]=None, from_name: Optional[str]=None,
|
|
from_address: Optional[str]=None, context: Dict[str, Any]={},
|
|
delay: datetime.timedelta=datetime.timedelta(0)) -> None:
|
|
# WARNING: Be careful when using this with multiple recipients;
|
|
# because the current ScheduledEmail model (used primarily for
|
|
# cancelling planned emails) does not support multiple recipients,
|
|
# this is only valid to use for such emails where we don't expect
|
|
# the cancellation feature to be relevant.
|
|
#
|
|
# For that reason, we currently assert that the list of
|
|
# to_user_ids/to_emails is 1 below, but in theory that could be
|
|
# changed as long as the callers are in a situation where the
|
|
# above problem is not relevant.
|
|
template_name = template_prefix.split('/')[-1]
|
|
email_fields = {'template_prefix': template_prefix, 'to_user_ids': to_user_ids, 'to_emails': to_emails,
|
|
'from_name': from_name, 'from_address': from_address, 'context': context}
|
|
|
|
if settings.DEVELOPMENT_LOG_EMAILS:
|
|
send_email(template_prefix, to_user_ids=to_user_ids, to_emails=to_emails, from_name=from_name,
|
|
from_address=from_address, context=context)
|
|
# For logging the email
|
|
|
|
assert (to_user_ids is None) ^ (to_emails is None)
|
|
if to_user_ids is not None:
|
|
# The realm is redundant if we have a to_user_id; this assert just
|
|
# expresses that fact
|
|
assert(len(to_user_ids) == 1)
|
|
assert(UserProfile.objects.filter(id__in=to_user_ids, realm=realm).exists())
|
|
to_field = {'user_id': to_user_ids[0]} # type: Dict[str, Any]
|
|
else:
|
|
assert to_emails is not None
|
|
assert(len(to_emails) == 1)
|
|
to_field = {'address': parseaddr(to_emails[0])[1]}
|
|
|
|
ScheduledEmail.objects.create(
|
|
type=EMAIL_TYPES[template_name],
|
|
scheduled_timestamp=timezone_now() + delay,
|
|
realm=realm,
|
|
data=ujson.dumps(email_fields),
|
|
**to_field)
|
|
|
|
def send_email_to_admins(template_prefix: str, realm: Realm, from_name: Optional[str]=None,
|
|
from_address: Optional[str]=None, context: Dict[str, Any]={}) -> None:
|
|
admins = realm.get_admin_users()
|
|
admin_user_ids = [admin.id for admin in admins]
|
|
send_email(template_prefix, to_user_ids=admin_user_ids, from_name=from_name,
|
|
from_address=from_address, context=context)
|
|
|
|
def handle_send_email_format_changes(job: Dict[str, Any]) -> None:
|
|
# Reformat any jobs that used the old to_email
|
|
# and to_user_ids argument formats.
|
|
if 'to_email' in job:
|
|
if job['to_email'] is not None:
|
|
job['to_emails'] = [job['to_email']]
|
|
del job['to_email']
|
|
if 'to_user_id' in job:
|
|
if job['to_user_id'] is not None:
|
|
job['to_user_ids'] = [job['to_user_id']]
|
|
del job['to_user_id']
|