mirror of
https://mau.dev/maunium/synapse.git
synced 2024-08-22 18:25:34 +00:00
268 lines
10 KiB
Python
268 lines
10 KiB
Python
# -*- coding: utf-8 -*-
|
|
# Copyright 2019 New Vector Ltd
|
|
#
|
|
# 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.
|
|
|
|
import email.mime.multipart
|
|
import email.utils
|
|
import logging
|
|
from email.mime.multipart import MIMEMultipart
|
|
from email.mime.text import MIMEText
|
|
from typing import TYPE_CHECKING, List
|
|
|
|
from synapse.api.errors import StoreError, SynapseError
|
|
from synapse.logging.context import make_deferred_yieldable
|
|
from synapse.metrics.background_process_metrics import wrap_as_background_process
|
|
from synapse.types import UserID
|
|
from synapse.util import stringutils
|
|
|
|
if TYPE_CHECKING:
|
|
from synapse.app.homeserver import HomeServer
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
|
|
class AccountValidityHandler:
|
|
def __init__(self, hs: "HomeServer"):
|
|
self.hs = hs
|
|
self.config = hs.config
|
|
self.store = self.hs.get_datastore()
|
|
self.sendmail = self.hs.get_sendmail()
|
|
self.clock = self.hs.get_clock()
|
|
|
|
self._account_validity = self.hs.config.account_validity
|
|
|
|
if (
|
|
self._account_validity.enabled
|
|
and self._account_validity.renew_by_email_enabled
|
|
):
|
|
# Don't do email-specific configuration if renewal by email is disabled.
|
|
self._template_html = self.config.account_validity_template_html
|
|
self._template_text = self.config.account_validity_template_text
|
|
|
|
try:
|
|
app_name = self.hs.config.email_app_name
|
|
|
|
self._subject = self._account_validity.renew_email_subject % {
|
|
"app": app_name
|
|
}
|
|
|
|
self._from_string = self.hs.config.email_notif_from % {"app": app_name}
|
|
except Exception:
|
|
# If substitution failed, fall back to the bare strings.
|
|
self._subject = self._account_validity.renew_email_subject
|
|
self._from_string = self.hs.config.email_notif_from
|
|
|
|
self._raw_from = email.utils.parseaddr(self._from_string)[1]
|
|
|
|
# Check the renewal emails to send and send them every 30min.
|
|
if hs.config.run_background_tasks:
|
|
self.clock.looping_call(self._send_renewal_emails, 30 * 60 * 1000)
|
|
|
|
@wrap_as_background_process("send_renewals")
|
|
async def _send_renewal_emails(self) -> None:
|
|
"""Gets the list of users whose account is expiring in the amount of time
|
|
configured in the ``renew_at`` parameter from the ``account_validity``
|
|
configuration, and sends renewal emails to all of these users as long as they
|
|
have an email 3PID attached to their account.
|
|
"""
|
|
expiring_users = await self.store.get_users_expiring_soon()
|
|
|
|
if expiring_users:
|
|
for user in expiring_users:
|
|
await self._send_renewal_email(
|
|
user_id=user["user_id"], expiration_ts=user["expiration_ts_ms"]
|
|
)
|
|
|
|
async def send_renewal_email_to_user(self, user_id: str) -> None:
|
|
"""
|
|
Send a renewal email for a specific user.
|
|
|
|
Args:
|
|
user_id: The user ID to send a renewal email for.
|
|
|
|
Raises:
|
|
SynapseError if the user is not set to renew.
|
|
"""
|
|
expiration_ts = await self.store.get_expiration_ts_for_user(user_id)
|
|
|
|
# If this user isn't set to be expired, raise an error.
|
|
if expiration_ts is None:
|
|
raise SynapseError(400, "User has no expiration time: %s" % (user_id,))
|
|
|
|
await self._send_renewal_email(user_id, expiration_ts)
|
|
|
|
async def _send_renewal_email(self, user_id: str, expiration_ts: int) -> None:
|
|
"""Sends out a renewal email to every email address attached to the given user
|
|
with a unique link allowing them to renew their account.
|
|
|
|
Args:
|
|
user_id: ID of the user to send email(s) to.
|
|
expiration_ts: Timestamp in milliseconds for the expiration date of
|
|
this user's account (used in the email templates).
|
|
"""
|
|
addresses = await self._get_email_addresses_for_user(user_id)
|
|
|
|
# Stop right here if the user doesn't have at least one email address.
|
|
# In this case, they will have to ask their server admin to renew their
|
|
# account manually.
|
|
# We don't need to do a specific check to make sure the account isn't
|
|
# deactivated, as a deactivated account isn't supposed to have any
|
|
# email address attached to it.
|
|
if not addresses:
|
|
return
|
|
|
|
try:
|
|
user_display_name = await self.store.get_profile_displayname(
|
|
UserID.from_string(user_id).localpart
|
|
)
|
|
if user_display_name is None:
|
|
user_display_name = user_id
|
|
except StoreError:
|
|
user_display_name = user_id
|
|
|
|
renewal_token = await self._get_renewal_token(user_id)
|
|
url = "%s_matrix/client/unstable/account_validity/renew?token=%s" % (
|
|
self.hs.config.public_baseurl,
|
|
renewal_token,
|
|
)
|
|
|
|
template_vars = {
|
|
"display_name": user_display_name,
|
|
"expiration_ts": expiration_ts,
|
|
"url": url,
|
|
}
|
|
|
|
html_text = self._template_html.render(**template_vars)
|
|
html_part = MIMEText(html_text, "html", "utf8")
|
|
|
|
plain_text = self._template_text.render(**template_vars)
|
|
text_part = MIMEText(plain_text, "plain", "utf8")
|
|
|
|
for address in addresses:
|
|
raw_to = email.utils.parseaddr(address)[1]
|
|
|
|
multipart_msg = MIMEMultipart("alternative")
|
|
multipart_msg["Subject"] = self._subject
|
|
multipart_msg["From"] = self._from_string
|
|
multipart_msg["To"] = address
|
|
multipart_msg["Date"] = email.utils.formatdate()
|
|
multipart_msg["Message-ID"] = email.utils.make_msgid()
|
|
multipart_msg.attach(text_part)
|
|
multipart_msg.attach(html_part)
|
|
|
|
logger.info("Sending renewal email to %s", address)
|
|
|
|
await make_deferred_yieldable(
|
|
self.sendmail(
|
|
self.hs.config.email_smtp_host,
|
|
self._raw_from,
|
|
raw_to,
|
|
multipart_msg.as_string().encode("utf8"),
|
|
reactor=self.hs.get_reactor(),
|
|
port=self.hs.config.email_smtp_port,
|
|
requireAuthentication=self.hs.config.email_smtp_user is not None,
|
|
username=self.hs.config.email_smtp_user,
|
|
password=self.hs.config.email_smtp_pass,
|
|
requireTransportSecurity=self.hs.config.require_transport_security,
|
|
)
|
|
)
|
|
|
|
await self.store.set_renewal_mail_status(user_id=user_id, email_sent=True)
|
|
|
|
async def _get_email_addresses_for_user(self, user_id: str) -> List[str]:
|
|
"""Retrieve the list of email addresses attached to a user's account.
|
|
|
|
Args:
|
|
user_id: ID of the user to lookup email addresses for.
|
|
|
|
Returns:
|
|
Email addresses for this account.
|
|
"""
|
|
threepids = await self.store.user_get_threepids(user_id)
|
|
|
|
addresses = []
|
|
for threepid in threepids:
|
|
if threepid["medium"] == "email":
|
|
addresses.append(threepid["address"])
|
|
|
|
return addresses
|
|
|
|
async def _get_renewal_token(self, user_id: str) -> str:
|
|
"""Generates a 32-byte long random string that will be inserted into the
|
|
user's renewal email's unique link, then saves it into the database.
|
|
|
|
Args:
|
|
user_id: ID of the user to generate a string for.
|
|
|
|
Returns:
|
|
The generated string.
|
|
|
|
Raises:
|
|
StoreError(500): Couldn't generate a unique string after 5 attempts.
|
|
"""
|
|
attempts = 0
|
|
while attempts < 5:
|
|
try:
|
|
renewal_token = stringutils.random_string(32)
|
|
await self.store.set_renewal_token_for_user(user_id, renewal_token)
|
|
return renewal_token
|
|
except StoreError:
|
|
attempts += 1
|
|
raise StoreError(500, "Couldn't generate a unique string as refresh string.")
|
|
|
|
async def renew_account(self, renewal_token: str) -> bool:
|
|
"""Renews the account attached to a given renewal token by pushing back the
|
|
expiration date by the current validity period in the server's configuration.
|
|
|
|
Args:
|
|
renewal_token: Token sent with the renewal request.
|
|
Returns:
|
|
Whether the provided token is valid.
|
|
"""
|
|
try:
|
|
user_id = await self.store.get_user_from_renewal_token(renewal_token)
|
|
except StoreError:
|
|
return False
|
|
|
|
logger.debug("Renewing an account for user %s", user_id)
|
|
await self.renew_account_for_user(user_id)
|
|
|
|
return True
|
|
|
|
async def renew_account_for_user(
|
|
self, user_id: str, expiration_ts: int = None, email_sent: bool = False
|
|
) -> int:
|
|
"""Renews the account attached to a given user by pushing back the
|
|
expiration date by the current validity period in the server's
|
|
configuration.
|
|
|
|
Args:
|
|
renewal_token: Token sent with the renewal request.
|
|
expiration_ts: New expiration date. Defaults to now + validity period.
|
|
email_sen: Whether an email has been sent for this validity period.
|
|
Defaults to False.
|
|
|
|
Returns:
|
|
New expiration date for this account, as a timestamp in
|
|
milliseconds since epoch.
|
|
"""
|
|
if expiration_ts is None:
|
|
expiration_ts = self.clock.time_msec() + self._account_validity.period
|
|
|
|
await self.store.set_account_validity_for_user(
|
|
user_id=user_id, expiration_ts=expiration_ts, email_sent=email_sent
|
|
)
|
|
|
|
return expiration_ts
|