mirror of
https://git.anonymousland.org/anonymousland/synapse-product.git
synced 2024-12-23 18:49:25 -05:00
0c0b82b6d1
This is a combination of a few different PRs, finally all being merged into `develop`:
* #5875
* #5876
* #5868 (This one added the `/versions` flag but the flag itself was actually [backed out](891afb57cb (diff-e591d42d30690ffb79f63bb726200891)) in #5969. What's left is just giving /versions access to the config file, which could be useful in the future)
* #5835
* #5969
* #5940
Clients should not actually use the new registration functionality until https://github.com/matrix-org/synapse/pull/5972 is merged.
UPGRADE.rst, changelog entries and config file changes should all be reviewed closely before this PR is merged.
272 lines
10 KiB
Python
272 lines
10 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2019 New Vector Ltd
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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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import email.mime.multipart
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import email.utils
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import logging
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from email.mime.multipart import MIMEMultipart
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from email.mime.text import MIMEText
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from twisted.internet import defer
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from synapse.api.errors import StoreError
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from synapse.logging.context import make_deferred_yieldable
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from synapse.metrics.background_process_metrics import run_as_background_process
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from synapse.types import UserID
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from synapse.util import stringutils
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try:
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from synapse.push.mailer import load_jinja2_templates
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except ImportError:
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load_jinja2_templates = None
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logger = logging.getLogger(__name__)
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class AccountValidityHandler(object):
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def __init__(self, hs):
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self.hs = hs
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self.config = hs.config
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self.store = self.hs.get_datastore()
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self.sendmail = self.hs.get_sendmail()
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self.clock = self.hs.get_clock()
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self._account_validity = self.hs.config.account_validity
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if self._account_validity.renew_by_email_enabled and load_jinja2_templates:
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# Don't do email-specific configuration if renewal by email is disabled.
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try:
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app_name = self.hs.config.email_app_name
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self._subject = self._account_validity.renew_email_subject % {
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"app": app_name
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}
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self._from_string = self.hs.config.email_notif_from % {"app": app_name}
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except Exception:
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# If substitution failed, fall back to the bare strings.
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self._subject = self._account_validity.renew_email_subject
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self._from_string = self.hs.config.email_notif_from
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self._raw_from = email.utils.parseaddr(self._from_string)[1]
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self._template_html, self._template_text = load_jinja2_templates(
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self.config.email_template_dir,
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[
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self.config.email_expiry_template_html,
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self.config.email_expiry_template_text,
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],
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apply_format_ts_filter=True,
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apply_mxc_to_http_filter=True,
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public_baseurl=self.config.public_baseurl,
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)
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# Check the renewal emails to send and send them every 30min.
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def send_emails():
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# run as a background process to make sure that the database transactions
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# have a logcontext to report to
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return run_as_background_process(
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"send_renewals", self.send_renewal_emails
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)
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self.clock.looping_call(send_emails, 30 * 60 * 1000)
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@defer.inlineCallbacks
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def send_renewal_emails(self):
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"""Gets the list of users whose account is expiring in the amount of time
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configured in the ``renew_at`` parameter from the ``account_validity``
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configuration, and sends renewal emails to all of these users as long as they
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have an email 3PID attached to their account.
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"""
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expiring_users = yield self.store.get_users_expiring_soon()
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if expiring_users:
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for user in expiring_users:
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yield self._send_renewal_email(
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user_id=user["user_id"], expiration_ts=user["expiration_ts_ms"]
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)
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@defer.inlineCallbacks
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def send_renewal_email_to_user(self, user_id):
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expiration_ts = yield self.store.get_expiration_ts_for_user(user_id)
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yield self._send_renewal_email(user_id, expiration_ts)
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@defer.inlineCallbacks
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def _send_renewal_email(self, user_id, expiration_ts):
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"""Sends out a renewal email to every email address attached to the given user
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with a unique link allowing them to renew their account.
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Args:
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user_id (str): ID of the user to send email(s) to.
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expiration_ts (int): Timestamp in milliseconds for the expiration date of
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this user's account (used in the email templates).
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"""
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addresses = yield self._get_email_addresses_for_user(user_id)
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# Stop right here if the user doesn't have at least one email address.
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# In this case, they will have to ask their server admin to renew their
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# account manually.
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# We don't need to do a specific check to make sure the account isn't
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# deactivated, as a deactivated account isn't supposed to have any
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# email address attached to it.
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if not addresses:
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return
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try:
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user_display_name = yield self.store.get_profile_displayname(
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UserID.from_string(user_id).localpart
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)
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if user_display_name is None:
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user_display_name = user_id
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except StoreError:
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user_display_name = user_id
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renewal_token = yield self._get_renewal_token(user_id)
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url = "%s_matrix/client/unstable/account_validity/renew?token=%s" % (
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self.hs.config.public_baseurl,
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renewal_token,
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)
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template_vars = {
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"display_name": user_display_name,
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"expiration_ts": expiration_ts,
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"url": url,
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}
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html_text = self._template_html.render(**template_vars)
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html_part = MIMEText(html_text, "html", "utf8")
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plain_text = self._template_text.render(**template_vars)
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text_part = MIMEText(plain_text, "plain", "utf8")
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for address in addresses:
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raw_to = email.utils.parseaddr(address)[1]
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multipart_msg = MIMEMultipart("alternative")
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multipart_msg["Subject"] = self._subject
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multipart_msg["From"] = self._from_string
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multipart_msg["To"] = address
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multipart_msg["Date"] = email.utils.formatdate()
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multipart_msg["Message-ID"] = email.utils.make_msgid()
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multipart_msg.attach(text_part)
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multipart_msg.attach(html_part)
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logger.info("Sending renewal email to %s", address)
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yield make_deferred_yieldable(
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self.sendmail(
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self.hs.config.email_smtp_host,
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self._raw_from,
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raw_to,
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multipart_msg.as_string().encode("utf8"),
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reactor=self.hs.get_reactor(),
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port=self.hs.config.email_smtp_port,
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requireAuthentication=self.hs.config.email_smtp_user is not None,
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username=self.hs.config.email_smtp_user,
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password=self.hs.config.email_smtp_pass,
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requireTransportSecurity=self.hs.config.require_transport_security,
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)
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)
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yield self.store.set_renewal_mail_status(user_id=user_id, email_sent=True)
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@defer.inlineCallbacks
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def _get_email_addresses_for_user(self, user_id):
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"""Retrieve the list of email addresses attached to a user's account.
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Args:
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user_id (str): ID of the user to lookup email addresses for.
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Returns:
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defer.Deferred[list[str]]: Email addresses for this account.
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"""
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threepids = yield self.store.user_get_threepids(user_id)
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addresses = []
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for threepid in threepids:
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if threepid["medium"] == "email":
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addresses.append(threepid["address"])
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return addresses
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@defer.inlineCallbacks
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def _get_renewal_token(self, user_id):
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"""Generates a 32-byte long random string that will be inserted into the
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user's renewal email's unique link, then saves it into the database.
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Args:
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user_id (str): ID of the user to generate a string for.
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Returns:
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defer.Deferred[str]: The generated string.
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Raises:
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StoreError(500): Couldn't generate a unique string after 5 attempts.
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"""
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attempts = 0
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while attempts < 5:
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try:
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renewal_token = stringutils.random_string(32)
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yield self.store.set_renewal_token_for_user(user_id, renewal_token)
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return renewal_token
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except StoreError:
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attempts += 1
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raise StoreError(500, "Couldn't generate a unique string as refresh string.")
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@defer.inlineCallbacks
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def renew_account(self, renewal_token):
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"""Renews the account attached to a given renewal token by pushing back the
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expiration date by the current validity period in the server's configuration.
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Args:
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renewal_token (str): Token sent with the renewal request.
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Returns:
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bool: Whether the provided token is valid.
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"""
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try:
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user_id = yield self.store.get_user_from_renewal_token(renewal_token)
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except StoreError:
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defer.returnValue(False)
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logger.debug("Renewing an account for user %s", user_id)
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yield self.renew_account_for_user(user_id)
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defer.returnValue(True)
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@defer.inlineCallbacks
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def renew_account_for_user(self, user_id, expiration_ts=None, email_sent=False):
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"""Renews the account attached to a given user by pushing back the
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expiration date by the current validity period in the server's
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configuration.
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Args:
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renewal_token (str): Token sent with the renewal request.
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expiration_ts (int): New expiration date. Defaults to now + validity period.
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email_sent (bool): Whether an email has been sent for this validity period.
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Defaults to False.
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Returns:
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defer.Deferred[int]: New expiration date for this account, as a timestamp
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in milliseconds since epoch.
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"""
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if expiration_ts is None:
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expiration_ts = self.clock.time_msec() + self._account_validity.period
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yield self.store.set_account_validity_for_user(
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user_id=user_id, expiration_ts=expiration_ts, email_sent=email_sent
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)
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return expiration_ts
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