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matrix-org_synapse/synapse/config/emailconfig.py

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# Copyright 2015-2016 OpenMarket Ltd
# Copyright 2017-2018 New Vector Ltd
# Copyright 2019 The Matrix.org Foundation C.I.C.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# This file can't be called email.py because if it is, we cannot:
import email.utils
import logging
import os
from typing import Any
import attr
from synapse.types import JsonDict
from ._base import Config, ConfigError
logger = logging.getLogger(__name__)
MISSING_PASSWORD_RESET_CONFIG_ERROR = """\
Password reset emails are enabled on this homeserver due to a partial
'email' block. However, the following required keys are missing:
%s
"""
DEFAULT_SUBJECTS = {
"message_from_person_in_room": "[%(app)s] You have a message on %(app)s from %(person)s in the %(room)s room...",
"message_from_person": "[%(app)s] You have a message on %(app)s from %(person)s...",
"messages_from_person": "[%(app)s] You have messages on %(app)s from %(person)s...",
"messages_in_room": "[%(app)s] You have messages on %(app)s in the %(room)s room...",
"messages_in_room_and_others": "[%(app)s] You have messages on %(app)s in the %(room)s room and others...",
"messages_from_person_and_others": "[%(app)s] You have messages on %(app)s from %(person)s and others...",
"invite_from_person": "[%(app)s] %(person)s has invited you to chat on %(app)s...",
"invite_from_person_to_room": "[%(app)s] %(person)s has invited you to join the %(room)s room on %(app)s...",
"invite_from_person_to_space": "[%(app)s] %(person)s has invited you to join the %(space)s space on %(app)s...",
"password_reset": "[%(server_name)s] Password reset",
"email_validation": "[%(server_name)s] Validate your email",
}
LEGACY_TEMPLATE_DIR_WARNING = """
This server's configuration file is using the deprecated 'template_dir' setting in the
'email' section. Support for this setting has been deprecated and will be removed in a
future version of Synapse. Server admins should instead use the new
'custom_template_directory' setting documented here:
https://matrix-org.github.io/synapse/latest/templates.html
---------------------------------------------------------------------------------------"""
@attr.s(slots=True, frozen=True, auto_attribs=True)
class EmailSubjectConfig:
message_from_person_in_room: str
message_from_person: str
messages_from_person: str
messages_in_room: str
messages_in_room_and_others: str
messages_from_person_and_others: str
invite_from_person: str
invite_from_person_to_room: str
invite_from_person_to_space: str
password_reset: str
email_validation: str
class EmailConfig(Config):
section = "email"
def read_config(self, config: JsonDict, **kwargs: Any) -> None:
# TODO: We should separate better the email configuration from the notification
# and account validity config.
self.email_enable_notifs = False
email_config = config.get("email")
if email_config is None:
email_config = {}
self.force_tls = email_config.get("force_tls", False)
self.email_smtp_host = email_config.get("smtp_host", "localhost")
self.email_smtp_port = email_config.get(
"smtp_port", 465 if self.force_tls else 25
)
self.email_smtp_user = email_config.get("smtp_user", None)
self.email_smtp_pass = email_config.get("smtp_pass", None)
self.require_transport_security = email_config.get(
"require_transport_security", False
)
self.enable_smtp_tls = email_config.get("enable_tls", True)
if self.force_tls and not self.enable_smtp_tls:
raise ConfigError("email.force_tls requires email.enable_tls to be true")
if self.require_transport_security and not self.enable_smtp_tls:
raise ConfigError(
"email.require_transport_security requires email.enable_tls to be true"
)
if "app_name" in email_config:
self.email_app_name = email_config["app_name"]
else:
self.email_app_name = "Matrix"
# TODO: Rename notif_from to something more generic, or have a separate
# from for password resets, message notifications, etc?
# Currently the email section is a bit bogged down with settings for
# multiple functions. Would be good to split it out into separate
# sections and only put the common ones under email:
self.email_notif_from = email_config.get("notif_from", None)
if self.email_notif_from is not None:
# make sure it's valid
parsed = email.utils.parseaddr(self.email_notif_from)
if parsed[1] == "":
raise RuntimeError("Invalid notif_from address")
# A user-configurable template directory
template_dir = email_config.get("template_dir")
if template_dir is not None:
logger.warning(LEGACY_TEMPLATE_DIR_WARNING)
if isinstance(template_dir, str):
# We need an absolute path, because we change directory after starting (and
# we don't yet know what auxiliary templates like mail.css we will need).
template_dir = os.path.abspath(template_dir)
elif template_dir is not None:
# If template_dir is something other than a str or None, warn the user
raise ConfigError("Config option email.template_dir must be type str")
self.email_enable_notifs = email_config.get("enable_notifs", False)
if config.get("trust_identity_server_for_password_resets"):
raise ConfigError(
'The config option "trust_identity_server_for_password_resets" '
"is no longer supported. Please remove it from the config file."
)
# If we have email config settings, assume that we can verify ownership of
# email addresses.
self.can_verify_email = email_config != {}
# Get lifetime of a validation token in milliseconds
self.email_validation_token_lifetime = self.parse_duration(
email_config.get("validation_token_lifetime", "1h")
)
if self.can_verify_email:
missing = []
if not self.email_notif_from:
missing.append("email.notif_from")
if missing:
raise ConfigError(
MISSING_PASSWORD_RESET_CONFIG_ERROR % (", ".join(missing),)
)
# These email templates have placeholders in them, and thus must be
# parsed using a templating engine during a request
password_reset_template_html = email_config.get(
"password_reset_template_html", "password_reset.html"
)
password_reset_template_text = email_config.get(
"password_reset_template_text", "password_reset.txt"
)
registration_template_html = email_config.get(
"registration_template_html", "registration.html"
)
registration_template_text = email_config.get(
"registration_template_text", "registration.txt"
)
add_threepid_template_html = email_config.get(
"add_threepid_template_html", "add_threepid.html"
)
add_threepid_template_text = email_config.get(
"add_threepid_template_text", "add_threepid.txt"
)
password_reset_template_failure_html = email_config.get(
"password_reset_template_failure_html", "password_reset_failure.html"
)
registration_template_failure_html = email_config.get(
"registration_template_failure_html", "registration_failure.html"
)
add_threepid_template_failure_html = email_config.get(
"add_threepid_template_failure_html", "add_threepid_failure.html"
)
# These templates do not support any placeholder variables, so we
# will read them from disk once during setup
password_reset_template_success_html = email_config.get(
"password_reset_template_success_html", "password_reset_success.html"
)
registration_template_success_html = email_config.get(
"registration_template_success_html", "registration_success.html"
)
add_threepid_template_success_html = email_config.get(
"add_threepid_template_success_html", "add_threepid_success.html"
)
# Read all templates from disk
(
self.email_password_reset_template_html,
self.email_password_reset_template_text,
self.email_registration_template_html,
self.email_registration_template_text,
self.email_add_threepid_template_html,
self.email_add_threepid_template_text,
self.email_password_reset_template_confirmation_html,
self.email_password_reset_template_failure_html,
self.email_registration_template_failure_html,
self.email_add_threepid_template_failure_html,
password_reset_template_success_html_template,
registration_template_success_html_template,
add_threepid_template_success_html_template,
) = self.read_templates(
[
password_reset_template_html,
password_reset_template_text,
registration_template_html,
registration_template_text,
add_threepid_template_html,
add_threepid_template_text,
"password_reset_confirmation.html",
password_reset_template_failure_html,
registration_template_failure_html,
add_threepid_template_failure_html,
password_reset_template_success_html,
registration_template_success_html,
add_threepid_template_success_html,
],
(
td
for td in (
self.root.server.custom_template_directory,
template_dir,
)
if td
), # Filter out template_dir if not provided
)
# Render templates that do not contain any placeholders
self.email_password_reset_template_success_html_content = (
password_reset_template_success_html_template.render()
)
self.email_registration_template_success_html_content = (
registration_template_success_html_template.render()
)
self.email_add_threepid_template_success_html_content = (
add_threepid_template_success_html_template.render()
)
if self.email_enable_notifs:
missing = []
if not self.email_notif_from:
missing.append("email.notif_from")
if missing:
raise ConfigError(
"email.enable_notifs is True but required keys are missing: %s"
% (", ".join(missing),)
)
notif_template_html = email_config.get(
"notif_template_html", "notif_mail.html"
)
notif_template_text = email_config.get(
"notif_template_text", "notif_mail.txt"
)
(
self.email_notif_template_html,
self.email_notif_template_text,
) = self.read_templates(
[notif_template_html, notif_template_text],
(
td
for td in (
self.root.server.custom_template_directory,
template_dir,
)
if td
), # Filter out template_dir if not provided
)
self.email_notif_for_new_users = email_config.get(
"notif_for_new_users", True
)
self.email_riot_base_url = email_config.get(
"client_base_url", email_config.get("riot_base_url", None)
)
# The amount of time we always wait before ever emailing about a notification
# (to give the user a chance to respond to other push or notice the window)
self.notif_delay_before_mail_ms = Config.parse_duration(
email_config.get("notif_delay_before_mail", "10m")
)
if self.root.account_validity.account_validity_renew_by_email_enabled:
expiry_template_html = email_config.get(
"expiry_template_html", "notice_expiry.html"
)
expiry_template_text = email_config.get(
"expiry_template_text", "notice_expiry.txt"
)
(
self.account_validity_template_html,
self.account_validity_template_text,
) = self.read_templates(
[expiry_template_html, expiry_template_text],
(
td
for td in (
self.root.server.custom_template_directory,
template_dir,
)
if td
), # Filter out template_dir if not provided
)
subjects_config = email_config.get("subjects", {})
subjects = {}
for key, default in DEFAULT_SUBJECTS.items():
subjects[key] = subjects_config.get(key, default)
self.email_subjects = EmailSubjectConfig(**subjects)
# The invite client location should be a HTTP(S) URL or None.
self.invite_client_location = email_config.get("invite_client_location") or None
if self.invite_client_location:
if not isinstance(self.invite_client_location, str):
raise ConfigError(
"Config option email.invite_client_location must be type str"
)
if not (
self.invite_client_location.startswith("http://")
or self.invite_client_location.startswith("https://")
):
raise ConfigError(
"Config option email.invite_client_location must be a http or https URL",
path=("email", "invite_client_location"),
)
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