From 20f0617e87924c929f0db0c06d30de0c8d15081c Mon Sep 17 00:00:00 2001 From: Brendan Abolivier Date: Wed, 10 Apr 2019 17:58:47 +0100 Subject: [PATCH] Send out emails with links to extend an account's validity period --- changelog.d/5047.feature | 1 + docs/sample_config.yaml | 29 ++- synapse/api/auth.py | 5 +- synapse/config/emailconfig.py | 7 +- synapse/config/registration.py | 52 +++- synapse/handlers/account_validity.py | 228 ++++++++++++++++++ synapse/push/mailer.py | 14 +- synapse/push/pusher.py | 6 +- synapse/res/templates/mail-expiry.css | 4 + synapse/res/templates/notice_expiry.html | 43 ++++ synapse/res/templates/notice_expiry.txt | 7 + synapse/rest/__init__.py | 2 + .../rest/client/v2_alpha/account_validity.py | 62 +++++ synapse/server.py | 5 + synapse/storage/registration.py | 168 +++++++++++-- .../schema/delta/54/account_validity.sql | 9 +- tests/rest/client/v2_alpha/test_register.py | 100 +++++++- 17 files changed, 699 insertions(+), 43 deletions(-) create mode 100644 changelog.d/5047.feature create mode 100644 synapse/handlers/account_validity.py create mode 100644 synapse/res/templates/mail-expiry.css create mode 100644 synapse/res/templates/notice_expiry.html create mode 100644 synapse/res/templates/notice_expiry.txt create mode 100644 synapse/rest/client/v2_alpha/account_validity.py diff --git a/changelog.d/5047.feature b/changelog.d/5047.feature new file mode 100644 index 000000000..12766a82a --- /dev/null +++ b/changelog.d/5047.feature @@ -0,0 +1 @@ +Add time-based account expiration. diff --git a/docs/sample_config.yaml b/docs/sample_config.yaml index 5594c8b9a..8bbd43723 100644 --- a/docs/sample_config.yaml +++ b/docs/sample_config.yaml @@ -643,11 +643,31 @@ uploads_path: "DATADIR/uploads" # #enable_registration: false -# Optional account validity parameter. This allows for, e.g., accounts to -# be denied any request after a given period. +# Optional account validity configuration. This allows for accounts to be denied +# any request after a given period. +# +# ``enabled`` defines whether the account validity feature is enabled. Defaults +# to False. +# +# ``period`` allows setting the period after which an account is valid +# after its registration. When renewing the account, its validity period +# will be extended by this amount of time. This parameter is required when using +# the account validity feature. +# +# ``renew_at`` is the amount of time before an account's expiry date at which +# Synapse will send an email to the account's email address with a renewal link. +# This needs the ``email`` and ``public_baseurl`` configuration sections to be +# filled. +# +# ``renew_email_subject`` is the subject of the email sent out with the renewal +# link. ``%(app)s`` can be used as a placeholder for the ``app_name`` parameter +# from the ``email`` section. # #account_validity: +# enabled: True # period: 6w +# renew_at: 1w +# renew_email_subject: "Renew your %(app)s account" # The user must provide all of the below types of 3PID when registering. # @@ -890,7 +910,7 @@ password_config: -# Enable sending emails for notification events +# Enable sending emails for notification events or expiry notices # Defining a custom URL for Riot is only needed if email notifications # should contain links to a self-hosted installation of Riot; when set # the "app_name" setting is ignored. @@ -912,6 +932,9 @@ password_config: # #template_dir: res/templates # notif_template_html: notif_mail.html # notif_template_text: notif_mail.txt +# # Templates for account expiry notices. +# expiry_template_html: notice_expiry.html +# expiry_template_text: notice_expiry.txt # notif_for_new_users: True # riot_base_url: "http://localhost/riot" diff --git a/synapse/api/auth.py b/synapse/api/auth.py index 976e0dd18..448296251 100644 --- a/synapse/api/auth.py +++ b/synapse/api/auth.py @@ -230,8 +230,9 @@ class Auth(object): # Deny the request if the user account has expired. if self._account_validity.enabled: - expiration_ts = yield self.store.get_expiration_ts_for_user(user) - if self.clock.time_msec() >= expiration_ts: + user_id = user.to_string() + expiration_ts = yield self.store.get_expiration_ts_for_user(user_id) + if expiration_ts and self.clock.time_msec() >= expiration_ts: raise AuthError( 403, "User account has expired", diff --git a/synapse/config/emailconfig.py b/synapse/config/emailconfig.py index 93d70cff1..60827be72 100644 --- a/synapse/config/emailconfig.py +++ b/synapse/config/emailconfig.py @@ -71,6 +71,8 @@ class EmailConfig(Config): self.email_notif_from = email_config["notif_from"] self.email_notif_template_html = email_config["notif_template_html"] self.email_notif_template_text = email_config["notif_template_text"] + self.email_expiry_template_html = email_config["expiry_template_html"] + self.email_expiry_template_text = email_config["expiry_template_text"] template_dir = email_config.get("template_dir") # we need an absolute path, because we change directory after starting (and @@ -120,7 +122,7 @@ class EmailConfig(Config): def default_config(self, config_dir_path, server_name, **kwargs): return """ - # Enable sending emails for notification events + # Enable sending emails for notification events or expiry notices # Defining a custom URL for Riot is only needed if email notifications # should contain links to a self-hosted installation of Riot; when set # the "app_name" setting is ignored. @@ -142,6 +144,9 @@ class EmailConfig(Config): # #template_dir: res/templates # notif_template_html: notif_mail.html # notif_template_text: notif_mail.txt + # # Templates for account expiry notices. + # expiry_template_html: notice_expiry.html + # expiry_template_text: notice_expiry.txt # notif_for_new_users: True # riot_base_url: "http://localhost/riot" """ diff --git a/synapse/config/registration.py b/synapse/config/registration.py index b7a7b4f1c..129c20820 100644 --- a/synapse/config/registration.py +++ b/synapse/config/registration.py @@ -21,12 +21,26 @@ from synapse.util.stringutils import random_string_with_symbols class AccountValidityConfig(Config): - def __init__(self, config): - self.enabled = (len(config) > 0) + def __init__(self, config, synapse_config): + self.enabled = config.get("enabled", False) + self.renew_by_email_enabled = ("renew_at" in config) - period = config.get("period", None) - if period: - self.period = self.parse_duration(period) + if self.enabled: + if "period" in config: + self.period = self.parse_duration(config["period"]) + else: + raise ConfigError("'period' is required when using account validity") + + if "renew_at" in config: + self.renew_at = self.parse_duration(config["renew_at"]) + + if "renew_email_subject" in config: + self.renew_email_subject = config["renew_email_subject"] + else: + self.renew_email_subject = "Renew your %(app)s account" + + if self.renew_by_email_enabled and "public_baseurl" not in synapse_config: + raise ConfigError("Can't send renewal emails without 'public_baseurl'") class RegistrationConfig(Config): @@ -40,7 +54,9 @@ class RegistrationConfig(Config): strtobool(str(config["disable_registration"])) ) - self.account_validity = AccountValidityConfig(config.get("account_validity", {})) + self.account_validity = AccountValidityConfig( + config.get("account_validity", {}), config, + ) self.registrations_require_3pid = config.get("registrations_require_3pid", []) self.allowed_local_3pids = config.get("allowed_local_3pids", []) @@ -86,11 +102,31 @@ class RegistrationConfig(Config): # #enable_registration: false - # Optional account validity parameter. This allows for, e.g., accounts to - # be denied any request after a given period. + # Optional account validity configuration. This allows for accounts to be denied + # any request after a given period. + # + # ``enabled`` defines whether the account validity feature is enabled. Defaults + # to False. + # + # ``period`` allows setting the period after which an account is valid + # after its registration. When renewing the account, its validity period + # will be extended by this amount of time. This parameter is required when using + # the account validity feature. + # + # ``renew_at`` is the amount of time before an account's expiry date at which + # Synapse will send an email to the account's email address with a renewal link. + # This needs the ``email`` and ``public_baseurl`` configuration sections to be + # filled. + # + # ``renew_email_subject`` is the subject of the email sent out with the renewal + # link. ``%%(app)s`` can be used as a placeholder for the ``app_name`` parameter + # from the ``email`` section. # #account_validity: + # enabled: True # period: 6w + # renew_at: 1w + # renew_email_subject: "Renew your %%(app)s account" # The user must provide all of the below types of 3PID when registering. # diff --git a/synapse/handlers/account_validity.py b/synapse/handlers/account_validity.py new file mode 100644 index 000000000..e82049e42 --- /dev/null +++ b/synapse/handlers/account_validity.py @@ -0,0 +1,228 @@ +# -*- 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 twisted.internet import defer + +from synapse.api.errors import StoreError +from synapse.types import UserID +from synapse.util import stringutils +from synapse.util.logcontext import make_deferred_yieldable + +try: + from synapse.push.mailer import load_jinja2_templates +except ImportError: + load_jinja2_templates = None + +logger = logging.getLogger(__name__) + + +class AccountValidityHandler(object): + def __init__(self, hs): + self.hs = hs + 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.renew_by_email_enabled and load_jinja2_templates: + # Don't do email-specific configuration if renewal by email is disabled. + 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] + + self._template_html, self._template_text = load_jinja2_templates( + config=self.hs.config, + template_html_name=self.hs.config.email_expiry_template_html, + template_text_name=self.hs.config.email_expiry_template_text, + ) + + # Check the renewal emails to send and send them every 30min. + self.clock.looping_call( + self.send_renewal_emails, + 30 * 60 * 1000, + ) + + @defer.inlineCallbacks + def send_renewal_emails(self): + """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 = yield self.store.get_users_expiring_soon() + + if expiring_users: + for user in expiring_users: + yield self._send_renewal_email( + user_id=user["user_id"], + expiration_ts=user["expiration_ts_ms"], + ) + + @defer.inlineCallbacks + def _send_renewal_email(self, user_id, expiration_ts): + """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 (str): ID of the user to send email(s) to. + expiration_ts (int): Timestamp in milliseconds for the expiration date of + this user's account (used in the email templates). + """ + addresses = yield 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. + if not addresses: + return + + try: + user_display_name = yield 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 = yield 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) + + yield 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 + )) + + yield self.store.set_renewal_mail_status( + user_id=user_id, + email_sent=True, + ) + + @defer.inlineCallbacks + def _get_email_addresses_for_user(self, user_id): + """Retrieve the list of email addresses attached to a user's account. + + Args: + user_id (str): ID of the user to lookup email addresses for. + + Returns: + defer.Deferred[list[str]]: Email addresses for this account. + """ + threepids = yield self.store.user_get_threepids(user_id) + + addresses = [] + for threepid in threepids: + if threepid["medium"] == "email": + addresses.append(threepid["address"]) + + defer.returnValue(addresses) + + @defer.inlineCallbacks + def _get_renewal_token(self, user_id): + """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 (str): ID of the user to generate a string for. + + Returns: + defer.Deferred[str]: 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) + yield self.store.set_renewal_token_for_user(user_id, renewal_token) + defer.returnValue(renewal_token) + except StoreError: + attempts += 1 + raise StoreError(500, "Couldn't generate a unique string as refresh string.") + + @defer.inlineCallbacks + def renew_account(self, renewal_token): + """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 (str): Token sent with the renewal request. + """ + user_id = yield self.store.get_user_from_renewal_token(renewal_token) + + logger.debug("Renewing an account for user %s", user_id) + + new_expiration_date = self.clock.time_msec() + self._account_validity.period + + yield self.store.renew_account_for_user( + user_id=user_id, + new_expiration_ts=new_expiration_date, + ) diff --git a/synapse/push/mailer.py b/synapse/push/mailer.py index 1eb5be095..c269bcf4a 100644 --- a/synapse/push/mailer.py +++ b/synapse/push/mailer.py @@ -521,11 +521,11 @@ def format_ts_filter(value, format): return time.strftime(format, time.localtime(value / 1000)) -def load_jinja2_templates(config): +def load_jinja2_templates(config, template_html_name, template_text_name): """Load the jinja2 email templates from disk Returns: - (notif_template_html, notif_template_text) + (template_html, template_text) """ logger.info("loading email templates from '%s'", config.email_template_dir) loader = jinja2.FileSystemLoader(config.email_template_dir) @@ -533,14 +533,10 @@ def load_jinja2_templates(config): env.filters["format_ts"] = format_ts_filter env.filters["mxc_to_http"] = _create_mxc_to_http_filter(config) - notif_template_html = env.get_template( - config.email_notif_template_html - ) - notif_template_text = env.get_template( - config.email_notif_template_text - ) + template_html = env.get_template(template_html_name) + template_text = env.get_template(template_text_name) - return notif_template_html, notif_template_text + return template_html, template_text def _create_mxc_to_http_filter(config): diff --git a/synapse/push/pusher.py b/synapse/push/pusher.py index b33f2a357..14bc7823c 100644 --- a/synapse/push/pusher.py +++ b/synapse/push/pusher.py @@ -44,7 +44,11 @@ class PusherFactory(object): if hs.config.email_enable_notifs: self.mailers = {} # app_name -> Mailer - templates = load_jinja2_templates(hs.config) + templates = load_jinja2_templates( + config=hs.config, + template_html_name=hs.config.email_notif_template_html, + template_text_name=hs.config.email_notif_template_text, + ) self.notif_template_html, self.notif_template_text = templates self.pusher_types["email"] = self._create_email_pusher diff --git a/synapse/res/templates/mail-expiry.css b/synapse/res/templates/mail-expiry.css new file mode 100644 index 000000000..3dea48646 --- /dev/null +++ b/synapse/res/templates/mail-expiry.css @@ -0,0 +1,4 @@ +.noticetext { + margin-top: 10px; + margin-bottom: 10px; +} diff --git a/synapse/res/templates/notice_expiry.html b/synapse/res/templates/notice_expiry.html new file mode 100644 index 000000000..f0d7c66e1 --- /dev/null +++ b/synapse/res/templates/notice_expiry.html @@ -0,0 +1,43 @@ + + + + + + + + + + + + +
+ + + + + + + + +
+
Hi {{ display_name }},
+
+
Your account will expire on {{ expiration_ts|format_ts("%d-%m-%Y") }}. This means that you will lose access to your account after this date.
+
To extend the validity of your account, please click on the link bellow (or copy and paste it into a new browser tab):
+
{{ url }}
+
+
+ + diff --git a/synapse/res/templates/notice_expiry.txt b/synapse/res/templates/notice_expiry.txt new file mode 100644 index 000000000..41f1c4279 --- /dev/null +++ b/synapse/res/templates/notice_expiry.txt @@ -0,0 +1,7 @@ +Hi {{ display_name }}, + +Your account will expire on {{ expiration_ts|format_ts("%d-%m-%Y") }}. This means that you will lose access to your account after this date. + +To extend the validity of your account, please click on the link bellow (or copy and paste it to a new browser tab): + +{{ url }} diff --git a/synapse/rest/__init__.py b/synapse/rest/__init__.py index 91f5247d5..a66885d34 100644 --- a/synapse/rest/__init__.py +++ b/synapse/rest/__init__.py @@ -33,6 +33,7 @@ from synapse.rest.client.v1 import ( from synapse.rest.client.v2_alpha import ( account, account_data, + account_validity, auth, capabilities, devices, @@ -109,3 +110,4 @@ class ClientRestResource(JsonResource): groups.register_servlets(hs, client_resource) room_upgrade_rest_servlet.register_servlets(hs, client_resource) capabilities.register_servlets(hs, client_resource) + account_validity.register_servlets(hs, client_resource) diff --git a/synapse/rest/client/v2_alpha/account_validity.py b/synapse/rest/client/v2_alpha/account_validity.py new file mode 100644 index 000000000..1ff6a6b63 --- /dev/null +++ b/synapse/rest/client/v2_alpha/account_validity.py @@ -0,0 +1,62 @@ +# -*- 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 logging + +from twisted.internet import defer + +from synapse.api.errors import SynapseError +from synapse.http.server import finish_request +from synapse.http.servlet import RestServlet + +from ._base import client_v2_patterns + +logger = logging.getLogger(__name__) + + +class AccountValidityRenewServlet(RestServlet): + PATTERNS = client_v2_patterns("/account_validity/renew$") + SUCCESS_HTML = b"Your account has been successfully renewed." + + def __init__(self, hs): + """ + Args: + hs (synapse.server.HomeServer): server + """ + super(AccountValidityRenewServlet, self).__init__() + + self.hs = hs + self.account_activity_handler = hs.get_account_validity_handler() + + @defer.inlineCallbacks + def on_GET(self, request): + if b"token" not in request.args: + raise SynapseError(400, "Missing renewal token") + renewal_token = request.args[b"token"][0] + + yield self.account_activity_handler.renew_account(renewal_token.decode('utf8')) + + request.setResponseCode(200) + request.setHeader(b"Content-Type", b"text/html; charset=utf-8") + request.setHeader(b"Content-Length", b"%d" % ( + len(AccountValidityRenewServlet.SUCCESS_HTML), + )) + request.write(AccountValidityRenewServlet.SUCCESS_HTML) + finish_request(request) + defer.returnValue(None) + + +def register_servlets(hs, http_server): + AccountValidityRenewServlet(hs).register(http_server) diff --git a/synapse/server.py b/synapse/server.py index dc8f1ccb8..8c30ac2fa 100644 --- a/synapse/server.py +++ b/synapse/server.py @@ -47,6 +47,7 @@ from synapse.federation.transport.client import TransportLayerClient from synapse.groups.attestations import GroupAttestationSigning, GroupAttestionRenewer from synapse.groups.groups_server import GroupsServerHandler from synapse.handlers import Handlers +from synapse.handlers.account_validity import AccountValidityHandler from synapse.handlers.acme import AcmeHandler from synapse.handlers.appservice import ApplicationServicesHandler from synapse.handlers.auth import AuthHandler, MacaroonGenerator @@ -183,6 +184,7 @@ class HomeServer(object): 'room_context_handler', 'sendmail', 'registration_handler', + 'account_validity_handler', ] REQUIRED_ON_MASTER_STARTUP = [ @@ -506,6 +508,9 @@ class HomeServer(object): def build_registration_handler(self): return RegistrationHandler(self) + def build_account_validity_handler(self): + return AccountValidityHandler(self) + def remove_pusher(self, app_id, push_key, user_id): return self.get_pusherpool().remove_pusher(app_id, push_key, user_id) diff --git a/synapse/storage/registration.py b/synapse/storage/registration.py index eede8ae4d..a78850259 100644 --- a/synapse/storage/registration.py +++ b/synapse/storage/registration.py @@ -32,6 +32,7 @@ class RegistrationWorkerStore(SQLBaseStore): super(RegistrationWorkerStore, self).__init__(db_conn, hs) self.config = hs.config + self.clock = hs.get_clock() @cached() def get_user_by_id(self, user_id): @@ -87,25 +88,156 @@ class RegistrationWorkerStore(SQLBaseStore): ) @cachedInlineCallbacks() - def get_expiration_ts_for_user(self, user): + def get_expiration_ts_for_user(self, user_id): """Get the expiration timestamp for the account bearing a given user ID. Args: - user (str): The ID of the user. + user_id (str): The ID of the user. Returns: defer.Deferred: None, if the account has no expiration timestamp, - otherwise int representation of the timestamp (as a number of - milliseconds since epoch). + otherwise int representation of the timestamp (as a number of + milliseconds since epoch). """ res = yield self._simple_select_one_onecol( table="account_validity", - keyvalues={"user_id": user.to_string()}, + keyvalues={"user_id": user_id}, retcol="expiration_ts_ms", allow_none=True, - desc="get_expiration_date_for_user", + desc="get_expiration_ts_for_user", ) defer.returnValue(res) + @defer.inlineCallbacks + def renew_account_for_user(self, user_id, new_expiration_ts): + """Updates the account validity table with a new timestamp for a given + user, removes the existing renewal token from this user, and unsets the + flag indicating that an email has been sent for renewing this account. + + Args: + user_id (str): ID of the user whose account validity to renew. + new_expiration_ts: New expiration date, as a timestamp in milliseconds + since epoch. + """ + def renew_account_for_user_txn(txn): + self._simple_update_txn( + txn=txn, + table="account_validity", + keyvalues={"user_id": user_id}, + updatevalues={ + "expiration_ts_ms": new_expiration_ts, + "email_sent": False, + "renewal_token": None, + }, + ) + self._invalidate_cache_and_stream( + txn, self.get_expiration_ts_for_user, (user_id,), + ) + + yield self.runInteraction( + "renew_account_for_user", + renew_account_for_user_txn, + ) + + @defer.inlineCallbacks + def set_renewal_token_for_user(self, user_id, renewal_token): + """Defines a renewal token for a given user. + + Args: + user_id (str): ID of the user to set the renewal token for. + renewal_token (str): Random unique string that will be used to renew the + user's account. + + Raises: + StoreError: The provided token is already set for another user. + """ + yield self._simple_update_one( + table="account_validity", + keyvalues={"user_id": user_id}, + updatevalues={"renewal_token": renewal_token}, + desc="set_renewal_token_for_user", + ) + + @defer.inlineCallbacks + def get_user_from_renewal_token(self, renewal_token): + """Get a user ID from a renewal token. + + Args: + renewal_token (str): The renewal token to perform the lookup with. + + Returns: + defer.Deferred[str]: The ID of the user to which the token belongs. + """ + res = yield self._simple_select_one_onecol( + table="account_validity", + keyvalues={"renewal_token": renewal_token}, + retcol="user_id", + desc="get_user_from_renewal_token", + ) + + defer.returnValue(res) + + @defer.inlineCallbacks + def get_renewal_token_for_user(self, user_id): + """Get the renewal token associated with a given user ID. + + Args: + user_id (str): The user ID to lookup a token for. + + Returns: + defer.Deferred[str]: The renewal token associated with this user ID. + """ + res = yield self._simple_select_one_onecol( + table="account_validity", + keyvalues={"user_id": user_id}, + retcol="renewal_token", + desc="get_renewal_token_for_user", + ) + + defer.returnValue(res) + + @defer.inlineCallbacks + def get_users_expiring_soon(self): + """Selects users whose account will expire in the [now, now + renew_at] time + window (see configuration for account_validity for information on what renew_at + refers to). + + Returns: + Deferred: Resolves to a list[dict[user_id (str), expiration_ts_ms (int)]] + """ + def select_users_txn(txn, now_ms, renew_at): + sql = ( + "SELECT user_id, expiration_ts_ms FROM account_validity" + " WHERE email_sent = ? AND (expiration_ts_ms - ?) <= ?" + ) + values = [False, now_ms, renew_at] + txn.execute(sql, values) + return self.cursor_to_dict(txn) + + res = yield self.runInteraction( + "get_users_expiring_soon", + select_users_txn, + self.clock.time_msec(), self.config.account_validity.renew_at, + ) + + defer.returnValue(res) + + @defer.inlineCallbacks + def set_renewal_mail_status(self, user_id, email_sent): + """Sets or unsets the flag that indicates whether a renewal email has been sent + to the user (and the user hasn't renewed their account yet). + + Args: + user_id (str): ID of the user to set/unset the flag for. + email_sent (bool): Flag which indicates whether a renewal email has been sent + to this user. + """ + yield self._simple_update_one( + table="account_validity", + keyvalues={"user_id": user_id}, + updatevalues={"email_sent": email_sent}, + desc="set_renewal_mail_status", + ) + @defer.inlineCallbacks def is_server_admin(self, user): res = yield self._simple_select_one_onecol( @@ -508,22 +640,24 @@ class RegistrationStore(RegistrationWorkerStore, } ) - if self._account_validity.enabled: - now_ms = self.clock.time_msec() - expiration_ts = now_ms + self._account_validity.period - self._simple_insert_txn( - txn, - "account_validity", - values={ - "user_id": user_id, - "expiration_ts_ms": expiration_ts, - } - ) except self.database_engine.module.IntegrityError: raise StoreError( 400, "User ID already taken.", errcode=Codes.USER_IN_USE ) + if self._account_validity.enabled: + now_ms = self.clock.time_msec() + expiration_ts = now_ms + self._account_validity.period + self._simple_insert_txn( + txn, + "account_validity", + values={ + "user_id": user_id, + "expiration_ts_ms": expiration_ts, + "email_sent": False, + } + ) + if token: # it's possible for this to get a conflict, but only for a single user # since tokens are namespaced based on their user ID diff --git a/synapse/storage/schema/delta/54/account_validity.sql b/synapse/storage/schema/delta/54/account_validity.sql index 57249262d..235762600 100644 --- a/synapse/storage/schema/delta/54/account_validity.sql +++ b/synapse/storage/schema/delta/54/account_validity.sql @@ -13,8 +13,15 @@ * limitations under the License. */ +DROP TABLE IF EXISTS account_validity; + -- Track what users are in public rooms. CREATE TABLE IF NOT EXISTS account_validity ( user_id TEXT PRIMARY KEY, - expiration_ts_ms BIGINT NOT NULL + expiration_ts_ms BIGINT NOT NULL, + email_sent BOOLEAN NOT NULL, + renewal_token TEXT ); + +CREATE INDEX account_validity_email_sent_idx ON account_validity(email_sent, expiration_ts_ms) +CREATE UNIQUE INDEX account_validity_renewal_string_idx ON account_validity(renewal_token) diff --git a/tests/rest/client/v2_alpha/test_register.py b/tests/rest/client/v2_alpha/test_register.py index d3611ed21..8fb5140a0 100644 --- a/tests/rest/client/v2_alpha/test_register.py +++ b/tests/rest/client/v2_alpha/test_register.py @@ -1,14 +1,22 @@ import datetime import json +import os + +import pkg_resources from synapse.api.constants import LoginType from synapse.api.errors import Codes from synapse.appservice import ApplicationService from synapse.rest.client.v1 import admin, login -from synapse.rest.client.v2_alpha import register, sync +from synapse.rest.client.v2_alpha import account_validity, register, sync from tests import unittest +try: + from synapse.push.mailer import load_jinja2_templates +except ImportError: + load_jinja2_templates = None + class RegisterRestServletTestCase(unittest.HomeserverTestCase): @@ -197,6 +205,7 @@ class AccountValidityTestCase(unittest.HomeserverTestCase): def make_homeserver(self, reactor, clock): config = self.default_config() + # Test for account expiring after a week. config.enable_registration = True config.account_validity.enabled = True config.account_validity.period = 604800000 # Time in ms for 1 week @@ -228,3 +237,92 @@ class AccountValidityTestCase(unittest.HomeserverTestCase): self.assertEquals( channel.json_body["errcode"], Codes.EXPIRED_ACCOUNT, channel.result, ) + + +class AccountValidityRenewalByEmailTestCase(unittest.HomeserverTestCase): + + skip = "No Jinja installed" if not load_jinja2_templates else None + servlets = [ + register.register_servlets, + admin.register_servlets, + login.register_servlets, + sync.register_servlets, + account_validity.register_servlets, + ] + + def make_homeserver(self, reactor, clock): + config = self.default_config() + # Test for account expiring after a week and renewal emails being sent 2 + # days before expiry. + config.enable_registration = True + config.account_validity.enabled = True + config.account_validity.renew_by_email_enabled = True + config.account_validity.period = 604800000 # Time in ms for 1 week + config.account_validity.renew_at = 172800000 # Time in ms for 2 days + config.account_validity.renew_email_subject = "Renew your account" + + # Email config. + self.email_attempts = [] + + def sendmail(*args, **kwargs): + self.email_attempts.append((args, kwargs)) + return + + config.email_template_dir = os.path.abspath( + pkg_resources.resource_filename('synapse', 'res/templates') + ) + config.email_expiry_template_html = "notice_expiry.html" + config.email_expiry_template_text = "notice_expiry.txt" + config.email_smtp_host = "127.0.0.1" + config.email_smtp_port = 20 + config.require_transport_security = False + config.email_smtp_user = None + config.email_smtp_pass = None + config.email_notif_from = "test@example.com" + + self.hs = self.setup_test_homeserver(config=config, sendmail=sendmail) + + self.store = self.hs.get_datastore() + + return self.hs + + def test_renewal_email(self): + user_id = self.register_user("kermit", "monkey") + tok = self.login("kermit", "monkey") + # We need to manually add an email address otherwise the handler will do + # nothing. + now = self.hs.clock.time_msec() + self.get_success(self.store.user_add_threepid( + user_id=user_id, medium="email", address="kermit@example.com", + validated_at=now, added_at=now, + )) + + # The specific endpoint doesn't matter, all we need is an authenticated + # endpoint. + request, channel = self.make_request( + b"GET", "/sync", access_token=tok, + ) + self.render(request) + self.assertEquals(channel.result["code"], b"200", channel.result) + + # Move 6 days forward. This should trigger a renewal email to be sent. + self.reactor.advance(datetime.timedelta(days=6).total_seconds()) + self.assertEqual(len(self.email_attempts), 1) + + # Retrieving the URL from the email is too much pain for now, so we + # retrieve the token from the DB. + renewal_token = self.get_success(self.store.get_renewal_token_for_user(user_id)) + url = "/_matrix/client/unstable/account_validity/renew?token=%s" % renewal_token + request, channel = self.make_request(b"GET", url) + self.render(request) + self.assertEquals(channel.result["code"], b"200", channel.result) + + # Move 3 days forward. If the renewal failed, every authed request with + # our access token should be denied from now, otherwise they should + # succeed. + self.reactor.advance(datetime.timedelta(days=3).total_seconds()) + request, channel = self.make_request( + b"GET", "/sync", access_token=tok, + ) + self.render(request) + self.assertEquals(channel.result["code"], b"200", channel.result)