libervia-backend/sat/tools/common/email.py
2021-03-19 15:45:14 +01:00

82 lines
3.4 KiB
Python

#!/usr/bin/env python3
# SàT: a jabber client
# Copyright (C) 2009-2021 Jérôme Poisson (goffi@goffi.org)
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""email sending facilities"""
from email.mime.text import MIMEText
from twisted.mail import smtp
from sat.core.constants import Const as C
from sat.tools import config as tools_config
from sat.core.log import getLogger
log = getLogger(__name__)
def sendEmail(config, to_emails, subject="", body="", from_email=None):
"""Send an email using SàT configuration
@param config (SafeConfigParser): the configuration instance
@param to_emails(list[unicode], unicode): list of recipients
if unicode, it will be split to get emails
@param subject(unicode): subject of the message
@param body(unicode): body of the message
@param from_email(unicode): address of the sender
@return (D): same as smtp.sendmail
"""
if isinstance(to_emails, str):
to_emails = to_emails.split()
email_host = tools_config.getConfig(config, None, "email_server") or "localhost"
email_from = tools_config.getConfig(config, None, "email_from")
if email_from is None:
# we suppose that email domain and XMPP domain are identical
domain = tools_config.getConfig(config, None, "xmpp_domain", "example.net")
email_from = "no_reply@" + domain
email_sender_domain = tools_config.getConfig(config, None, "email_sender_domain")
if email_sender_domain is None and smtp.DNSNAME == b"localhost.localdomain":
try:
email_sender_domain = email_from.split('@')[1]
except IndexError:
log.warning(
"Can't set email_sender_domain domain du to invalid email_from: "
f"{email_from!r}")
email_port = int(tools_config.getConfig(config, None, "email_port", 25))
email_username = tools_config.getConfig(config, None, "email_username")
email_password = tools_config.getConfig(config, None, "email_password")
email_auth = C.bool(tools_config.getConfig(config, None, "email_auth", C.BOOL_FALSE))
email_starttls = C.bool(tools_config.getConfig(config, None, "email_starttls",
C.BOOL_FALSE))
msg = MIMEText(body, "plain", "UTF-8")
msg["Subject"] = subject
msg["From"] = email_from
msg["To"] = ", ".join(to_emails)
return smtp.sendmail(
email_host.encode("utf-8"),
email_from.encode("utf-8"),
[email.encode("utf-8") for email in to_emails],
msg.as_bytes(),
senderDomainName=email_sender_domain if email_sender_domain else None,
port=email_port,
username=email_username.encode("utf-8") if email_username else None,
password=email_password.encode("utf-8") if email_password else None,
requireAuthentication=email_auth,
requireTransportSecurity=email_starttls,
)