view libervia/backend/tools/common/email.py @ 4094:c3b68fdc2de7

component AP gateway: fix handling of XMPP comments authors: the gateway was supposing that comments where emitted from PEP of author. While this is the case for most blog posts, it's not for comments. Instead the component is now using `author_jid` which is retrieved by XEP-0277 plugin, and reject the item if the auhor is not verified (i.e. if `publisher` attribute is not set by XMPP service).
author Goffi <goffi@goffi.org>
date Mon, 12 Jun 2023 14:50:43 +0200
parents 4b842c1fb686
children b0c36f3d3e04
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#!/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 libervia.backend.core.constants import Const as C
from libervia.backend.tools import config as tools_config
from libervia.backend.core.log import getLogger

log = getLogger(__name__)


def send_email(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.config_get(config, None, "email_server") or "localhost"
    email_from = from_email or tools_config.config_get(config, None, "email_from")

    # we suppose that email domain and XMPP domain are identical
    domain = tools_config.config_get(config, None, "xmpp_domain")
    if domain is None:
        if email_from is not None:
            domain = email_from.split("@", 1)[-1]
        else:
            domain = "example.net"

    if email_from is None:
        email_from = "no_reply@" + domain
    email_sender_domain = tools_config.config_get(
        config, None, "email_sender_domain", domain
    )
    email_port = int(tools_config.config_get(config, None, "email_port", 25))
    email_username = tools_config.config_get(config, None, "email_username")
    email_password = tools_config.config_get(config, None, "email_password")
    email_auth = C.bool(tools_config.config_get(config, None, "email_auth", C.BOOL_FALSE))
    email_starttls = C.bool(tools_config.config_get(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,
    )