292 lines
12 KiB
Python
292 lines
12 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2015-2016 OpenMarket Ltd
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# Copyright 2017-2018 New Vector Ltd
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# Copyright 2019 The Matrix.org Foundation C.I.C.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from __future__ import print_function
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# This file can't be called email.py because if it is, we cannot:
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import email.utils
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import os
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import pkg_resources
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from ._base import Config, ConfigError
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class EmailConfig(Config):
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def read_config(self, config, **kwargs):
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# TODO: We should separate better the email configuration from the notification
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# and account validity config.
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self.email_enable_notifs = False
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email_config = config.get("email", {})
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self.email_smtp_host = email_config.get("smtp_host", None)
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self.email_smtp_port = email_config.get("smtp_port", None)
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self.email_smtp_user = email_config.get("smtp_user", None)
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self.email_smtp_pass = email_config.get("smtp_pass", None)
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self.require_transport_security = email_config.get(
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"require_transport_security", False
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)
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if "app_name" in email_config:
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self.email_app_name = email_config["app_name"]
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else:
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self.email_app_name = "Matrix"
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# TODO: Rename notif_from to something more generic, or have a separate
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# from for password resets, message notifications, etc?
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# Currently the email section is a bit bogged down with settings for
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# multiple functions. Would be good to split it out into separate
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# sections and only put the common ones under email:
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self.email_notif_from = email_config.get("notif_from", None)
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if self.email_notif_from is not None:
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# make sure it's valid
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parsed = email.utils.parseaddr(self.email_notif_from)
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if parsed[1] == "":
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raise RuntimeError("Invalid notif_from address")
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template_dir = email_config.get("template_dir")
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# we need an absolute path, because we change directory after starting (and
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# we don't yet know what auxilliary templates like mail.css we will need).
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# (Note that loading as package_resources with jinja.PackageLoader doesn't
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# work for the same reason.)
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if not template_dir:
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template_dir = pkg_resources.resource_filename("synapse", "res/templates")
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self.email_template_dir = os.path.abspath(template_dir)
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self.email_enable_notifs = email_config.get("enable_notifs", False)
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account_validity_renewal_enabled = config.get("account_validity", {}).get(
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"renew_at"
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)
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email_trust_identity_server_for_password_resets = email_config.get(
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"trust_identity_server_for_password_resets", False
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)
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self.email_password_reset_behaviour = (
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"remote" if email_trust_identity_server_for_password_resets else "local"
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)
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self.password_resets_were_disabled_due_to_email_config = False
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if self.email_password_reset_behaviour == "local" and email_config == {}:
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# We cannot warn the user this has happened here
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# Instead do so when a user attempts to reset their password
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self.password_resets_were_disabled_due_to_email_config = True
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self.email_password_reset_behaviour = "off"
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# Get lifetime of a validation token in milliseconds
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self.email_validation_token_lifetime = self.parse_duration(
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email_config.get("validation_token_lifetime", "1h")
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)
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if (
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self.email_enable_notifs
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or account_validity_renewal_enabled
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or self.email_password_reset_behaviour == "local"
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):
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# make sure we can import the required deps
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import jinja2
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import bleach
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# prevent unused warnings
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jinja2
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bleach
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if self.email_password_reset_behaviour == "local":
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required = ["smtp_host", "smtp_port", "notif_from"]
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missing = []
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for k in required:
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if k not in email_config:
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missing.append("email." + k)
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if config.get("public_baseurl") is None:
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missing.append("public_base_url")
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if len(missing) > 0:
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raise RuntimeError(
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"Password resets emails are configured to be sent from "
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"this homeserver due to a partial 'email' block. "
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"However, the following required keys are missing: %s"
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% (", ".join(missing),)
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)
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# Templates for password reset emails
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self.email_password_reset_template_html = email_config.get(
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"password_reset_template_html", "password_reset.html"
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)
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self.email_password_reset_template_text = email_config.get(
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"password_reset_template_text", "password_reset.txt"
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)
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self.email_password_reset_failure_template = email_config.get(
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"password_reset_failure_template", "password_reset_failure.html"
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)
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# This template does not support any replaceable variables, so we will
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# read it from the disk once during setup
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email_password_reset_success_template = email_config.get(
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"password_reset_success_template", "password_reset_success.html"
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)
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# Check templates exist
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for f in [
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self.email_password_reset_template_html,
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self.email_password_reset_template_text,
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self.email_password_reset_failure_template,
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email_password_reset_success_template,
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]:
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p = os.path.join(self.email_template_dir, f)
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if not os.path.isfile(p):
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raise ConfigError("Unable to find template file %s" % (p,))
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# Retrieve content of web templates
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filepath = os.path.join(
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self.email_template_dir, email_password_reset_success_template
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)
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self.email_password_reset_success_html_content = self.read_file(
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filepath, "email.password_reset_template_success_html"
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)
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if self.email_enable_notifs:
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required = [
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"smtp_host",
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"smtp_port",
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"notif_from",
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"notif_template_html",
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"notif_template_text",
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]
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missing = []
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for k in required:
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if k not in email_config:
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missing.append(k)
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if len(missing) > 0:
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raise RuntimeError(
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"email.enable_notifs is True but required keys are missing: %s"
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% (", ".join(["email." + k for k in missing]),)
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)
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if config.get("public_baseurl") is None:
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raise RuntimeError(
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"email.enable_notifs is True but no public_baseurl is set"
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)
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self.email_notif_template_html = email_config["notif_template_html"]
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self.email_notif_template_text = email_config["notif_template_text"]
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for f in self.email_notif_template_text, self.email_notif_template_html:
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p = os.path.join(self.email_template_dir, f)
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if not os.path.isfile(p):
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raise ConfigError("Unable to find email template file %s" % (p,))
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self.email_notif_for_new_users = email_config.get(
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"notif_for_new_users", True
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)
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self.email_riot_base_url = email_config.get("riot_base_url", None)
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if account_validity_renewal_enabled:
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self.email_expiry_template_html = email_config.get(
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"expiry_template_html", "notice_expiry.html"
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)
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self.email_expiry_template_text = email_config.get(
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"expiry_template_text", "notice_expiry.txt"
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)
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for f in self.email_expiry_template_text, self.email_expiry_template_html:
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p = os.path.join(self.email_template_dir, f)
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if not os.path.isfile(p):
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raise ConfigError("Unable to find email template file %s" % (p,))
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def generate_config_section(self, config_dir_path, server_name, **kwargs):
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return """
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# Enable sending emails for password resets, notification events or
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# account expiry notices
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#
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# If your SMTP server requires authentication, the optional smtp_user &
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# smtp_pass variables should be used
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#
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#email:
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# enable_notifs: false
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# smtp_host: "localhost"
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# smtp_port: 25 # SSL: 465, STARTTLS: 587
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# smtp_user: "exampleusername"
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# smtp_pass: "examplepassword"
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# require_transport_security: False
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# notif_from: "Your Friendly %(app)s Home Server <noreply@example.com>"
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# app_name: Matrix
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#
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# # Enable email notifications by default
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# #
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# notif_for_new_users: True
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#
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# # Defining a custom URL for Riot is only needed if email notifications
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# # should contain links to a self-hosted installation of Riot; when set
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# # the "app_name" setting is ignored
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# #
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# riot_base_url: "http://localhost/riot"
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#
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# # Enable sending password reset emails via the configured, trusted
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# # identity servers
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# #
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# # IMPORTANT! This will give a malicious or overtaken identity server
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# # the ability to reset passwords for your users! Make absolutely sure
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# # that you want to do this! It is strongly recommended that password
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# # reset emails be sent by the homeserver instead
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# #
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# # If this option is set to false and SMTP options have not been
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# # configured, resetting user passwords via email will be disabled
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# #
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# #trust_identity_server_for_password_resets: false
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#
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# # Configure the time that a validation email or text message code
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# # will expire after sending
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# #
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# # This is currently used for password resets
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# #
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# #validation_token_lifetime: 1h
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#
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# # Template directory. All template files should be stored within this
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# # directory. If not set, default templates from within the Synapse
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# # package will be used
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# #
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# # For the list of default templates, please see
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# # https://github.com/matrix-org/synapse/tree/master/synapse/res/templates
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# #
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# #template_dir: res/templates
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#
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# # Templates for email notifications
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# #
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# notif_template_html: notif_mail.html
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# notif_template_text: notif_mail.txt
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#
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# # Templates for account expiry notices
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# #
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# expiry_template_html: notice_expiry.html
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# expiry_template_text: notice_expiry.txt
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#
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# # Templates for password reset emails sent by the homeserver
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# #
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# #password_reset_template_html: password_reset.html
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# #password_reset_template_text: password_reset.txt
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#
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# # Templates for password reset success and failure pages that a user
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# # will see after attempting to reset their password
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# #
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# #password_reset_template_success_html: password_reset_success.html
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# #password_reset_template_failure_html: password_reset_failure.html
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"""
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