Add account expiration feature

This commit is contained in:
Brendan Abolivier 2019-04-08 17:10:55 +01:00
parent 35442efb75
commit 747aa9f8ca
10 changed files with 144 additions and 4 deletions

1
changelog.d/5027.feature Normal file
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@ -0,0 +1 @@
Add time-based account expiration.

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@ -643,6 +643,12 @@ 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.
#
#account_validity:
# period: 6w
# The user must provide all of the below types of 3PID when registering.
#
#registrations_require_3pid:

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@ -64,6 +64,8 @@ class Auth(object):
self.token_cache = LruCache(CACHE_SIZE_FACTOR * 10000)
register_cache("cache", "token_cache", self.token_cache)
self._account_validity = hs.config.account_validity
@defer.inlineCallbacks
def check_from_context(self, room_version, event, context, do_sig_check=True):
prev_state_ids = yield context.get_prev_state_ids(self.store)
@ -226,6 +228,16 @@ class Auth(object):
token_id = user_info["token_id"]
is_guest = user_info["is_guest"]
# 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:
raise AuthError(
403,
"User account has expired",
errcode=Codes.EXPIRED_ACCOUNT,
)
# device_id may not be present if get_user_by_access_token has been
# stubbed out.
device_id = user_info.get("device_id")

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@ -60,6 +60,7 @@ class Codes(object):
UNSUPPORTED_ROOM_VERSION = "M_UNSUPPORTED_ROOM_VERSION"
INCOMPATIBLE_ROOM_VERSION = "M_INCOMPATIBLE_ROOM_VERSION"
WRONG_ROOM_KEYS_VERSION = "M_WRONG_ROOM_KEYS_VERSION"
EXPIRED_ACCOUNT = "ORG_MATRIX_EXPIRED_ACCOUNT"
class CodeMessageException(RuntimeError):

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@ -20,6 +20,15 @@ from synapse.types import RoomAlias
from synapse.util.stringutils import random_string_with_symbols
class AccountValidityConfig(Config):
def __init__(self, config):
self.enabled = (len(config) > 0)
period = config.get("period", None)
if period:
self.period = self.parse_duration(period)
class RegistrationConfig(Config):
def read_config(self, config):
@ -31,6 +40,8 @@ class RegistrationConfig(Config):
strtobool(str(config["disable_registration"]))
)
self.account_validity = AccountValidityConfig(config.get("account_validity", {}))
self.registrations_require_3pid = config.get("registrations_require_3pid", [])
self.allowed_local_3pids = config.get("allowed_local_3pids", [])
self.registration_shared_secret = config.get("registration_shared_secret")
@ -75,6 +86,12 @@ 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.
#
#account_validity:
# period: 6w
# The user must provide all of the below types of 3PID when registering.
#
#registrations_require_3pid:

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@ -25,7 +25,7 @@ logger = logging.getLogger(__name__)
# Remember to update this number every time a change is made to database
# schema files, so the users will be informed on server restarts.
SCHEMA_VERSION = 53
SCHEMA_VERSION = 54
dir_path = os.path.abspath(os.path.dirname(__file__))

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@ -86,6 +86,26 @@ class RegistrationWorkerStore(SQLBaseStore):
token
)
@cachedInlineCallbacks()
def get_expiration_ts_for_user(self, user):
"""Get the expiration timestamp for the account bearing a given user ID.
Args:
user (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).
"""
res = yield self._simple_select_one_onecol(
table="account_validity",
keyvalues={"user_id": user.to_string()},
retcol="expiration_ts_ms",
allow_none=True,
desc="get_expiration_date_for_user",
)
defer.returnValue(res)
@defer.inlineCallbacks
def is_server_admin(self, user):
res = yield self._simple_select_one_onecol(
@ -351,6 +371,8 @@ class RegistrationStore(RegistrationWorkerStore,
columns=["creation_ts"],
)
self._account_validity = hs.config.account_validity
# we no longer use refresh tokens, but it's possible that some people
# might have a background update queued to build this index. Just
# clear the background update.
@ -485,6 +507,18 @@ class RegistrationStore(RegistrationWorkerStore,
"user_type": user_type,
}
)
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

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@ -0,0 +1,20 @@
/* 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.
*/
-- 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
);

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@ -1,15 +1,18 @@
import datetime
import json
from synapse.api.constants import LoginType
from synapse.api.errors import Codes
from synapse.appservice import ApplicationService
from synapse.rest.client.v2_alpha.register import register_servlets
from synapse.rest.client.v1 import admin, login
from synapse.rest.client.v2_alpha import register, sync
from tests import unittest
class RegisterRestServletTestCase(unittest.HomeserverTestCase):
servlets = [register_servlets]
servlets = [register.register_servlets]
def make_homeserver(self, reactor, clock):
@ -181,3 +184,47 @@ class RegisterRestServletTestCase(unittest.HomeserverTestCase):
self.render(request)
self.assertEquals(channel.result["code"], b"200", channel.result)
class AccountValidityTestCase(unittest.HomeserverTestCase):
servlets = [
register.register_servlets,
admin.register_servlets,
login.register_servlets,
sync.register_servlets,
]
def make_homeserver(self, reactor, clock):
config = self.default_config()
config.enable_registration = True
config.account_validity.enabled = True
config.account_validity.period = 604800000 # Time in ms for 1 week
self.hs = self.setup_test_homeserver(config=config)
return self.hs
def test_validity_period(self):
self.register_user("kermit", "monkey")
tok = self.login("kermit", "monkey")
# 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)
self.reactor.advance(datetime.timedelta(weeks=1).total_seconds())
request, channel = self.make_request(
b"GET", "/sync", access_token=tok,
)
self.render(request)
self.assertEquals(channel.result["code"], b"403", channel.result)
self.assertEquals(
channel.json_body["errcode"], Codes.EXPIRED_ACCOUNT, channel.result,
)

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@ -24,7 +24,7 @@ from synapse.state import StateHandler, StateResolutionHandler
from tests import unittest
from .utils import MockClock
from .utils import MockClock, default_config
_next_event_id = 1000
@ -159,6 +159,7 @@ class StateTestCase(unittest.TestCase):
self.store = StateGroupStore()
hs = Mock(
spec_set=[
"config",
"get_datastore",
"get_auth",
"get_state_handler",
@ -166,6 +167,7 @@ class StateTestCase(unittest.TestCase):
"get_state_resolution_handler",
]
)
hs.config = default_config("tesths")
hs.get_datastore.return_value = self.store
hs.get_state_handler.return_value = None
hs.get_clock.return_value = MockClock()