From 0836cbb9f5aaf9260161fa998b2fe4c0ea7e692b Mon Sep 17 00:00:00 2001 From: Richard van der Hoff <1389908+richvdh@users.noreply.github.com> Date: Thu, 2 May 2019 10:45:52 +0100 Subject: Factor out an "assert_requester_is_admin" function (#5120) Rather than copying-and-pasting the same four lines hundreds of times --- changelog.d/5120.misc | 1 + synapse/api/auth.py | 2 +- synapse/rest/admin/__init__.py | 95 +++++++++--------------------------------- synapse/rest/admin/_base.py | 59 ++++++++++++++++++++++++++ 4 files changed, 81 insertions(+), 76 deletions(-) create mode 100644 changelog.d/5120.misc create mode 100644 synapse/rest/admin/_base.py diff --git a/changelog.d/5120.misc b/changelog.d/5120.misc new file mode 100644 index 0000000000..6575f29322 --- /dev/null +++ b/changelog.d/5120.misc @@ -0,0 +1 @@ +Factor out an "assert_requester_is_admin" function. diff --git a/synapse/api/auth.py b/synapse/api/auth.py index 960e66dbdc..0c6c93a87b 100644 --- a/synapse/api/auth.py +++ b/synapse/api/auth.py @@ -556,7 +556,7 @@ class Auth(object): """ Check if the given user is a local server admin. Args: - user (str): mxid of user to check + user (UserID): user to check Returns: bool: True if the user is an admin diff --git a/synapse/rest/admin/__init__.py b/synapse/rest/admin/__init__.py index afac8b1724..d02f5198b8 100644 --- a/synapse/rest/admin/__init__.py +++ b/synapse/rest/admin/__init__.py @@ -36,6 +36,7 @@ from synapse.http.servlet import ( parse_json_object_from_request, parse_string, ) +from synapse.rest.admin._base import assert_requester_is_admin, assert_user_is_admin from synapse.types import UserID, create_requester from synapse.util.versionstring import get_version_string @@ -75,15 +76,7 @@ class UsersRestServlet(RestServlet): @defer.inlineCallbacks def on_GET(self, request, user_id): target_user = UserID.from_string(user_id) - requester = yield self.auth.get_user_by_req(request) - is_admin = yield self.auth.is_server_admin(requester.user) - - if not is_admin: - raise AuthError(403, "You are not a server admin") - - # To allow all users to get the users list - # if not is_admin and target_user != auth_user: - # raise AuthError(403, "You are not a server admin") + yield assert_requester_is_admin(self.auth, request) if not self.hs.is_mine(target_user): raise SynapseError(400, "Can only users a local user") @@ -101,11 +94,7 @@ class VersionServlet(RestServlet): @defer.inlineCallbacks def on_GET(self, request): - requester = yield self.auth.get_user_by_req(request) - is_admin = yield self.auth.is_server_admin(requester.user) - - if not is_admin: - raise AuthError(403, "You are not a server admin") + yield assert_requester_is_admin(self.auth, request) ret = { 'server_version': get_version_string(synapse), @@ -265,10 +254,9 @@ class WhoisRestServlet(RestServlet): target_user = UserID.from_string(user_id) requester = yield self.auth.get_user_by_req(request) auth_user = requester.user - is_admin = yield self.auth.is_server_admin(requester.user) - if not is_admin and target_user != auth_user: - raise AuthError(403, "You are not a server admin") + if target_user != auth_user: + yield assert_user_is_admin(self.auth, auth_user) if not self.hs.is_mine(target_user): raise SynapseError(400, "Can only whois a local user") @@ -287,11 +275,7 @@ class PurgeMediaCacheRestServlet(RestServlet): @defer.inlineCallbacks def on_POST(self, request): - requester = yield self.auth.get_user_by_req(request) - is_admin = yield self.auth.is_server_admin(requester.user) - - if not is_admin: - raise AuthError(403, "You are not a server admin") + yield assert_requester_is_admin(self.auth, request) before_ts = parse_integer(request, "before_ts", required=True) logger.info("before_ts: %r", before_ts) @@ -318,11 +302,7 @@ class PurgeHistoryRestServlet(RestServlet): @defer.inlineCallbacks def on_POST(self, request, room_id, event_id): - requester = yield self.auth.get_user_by_req(request) - is_admin = yield self.auth.is_server_admin(requester.user) - - if not is_admin: - raise AuthError(403, "You are not a server admin") + yield assert_requester_is_admin(self.auth, request) body = parse_json_object_from_request(request, allow_empty_body=True) @@ -414,11 +394,7 @@ class PurgeHistoryStatusRestServlet(RestServlet): @defer.inlineCallbacks def on_GET(self, request, purge_id): - requester = yield self.auth.get_user_by_req(request) - is_admin = yield self.auth.is_server_admin(requester.user) - - if not is_admin: - raise AuthError(403, "You are not a server admin") + yield assert_requester_is_admin(self.auth, request) purge_status = self.pagination_handler.get_purge_status(purge_id) if purge_status is None: @@ -436,6 +412,7 @@ class DeactivateAccountRestServlet(RestServlet): @defer.inlineCallbacks def on_POST(self, request, target_user_id): + yield assert_requester_is_admin(self.auth, request) body = parse_json_object_from_request(request, allow_empty_body=True) erase = body.get("erase", False) if not isinstance(erase, bool): @@ -446,11 +423,6 @@ class DeactivateAccountRestServlet(RestServlet): ) UserID.from_string(target_user_id) - requester = yield self.auth.get_user_by_req(request) - is_admin = yield self.auth.is_server_admin(requester.user) - - if not is_admin: - raise AuthError(403, "You are not a server admin") result = yield self._deactivate_account_handler.deactivate_account( target_user_id, erase, @@ -490,9 +462,7 @@ class ShutdownRoomRestServlet(RestServlet): @defer.inlineCallbacks def on_POST(self, request, room_id): requester = yield self.auth.get_user_by_req(request) - is_admin = yield self.auth.is_server_admin(requester.user) - if not is_admin: - raise AuthError(403, "You are not a server admin") + yield assert_user_is_admin(self.auth, requester.user) content = parse_json_object_from_request(request) assert_params_in_dict(content, ["new_room_user_id"]) @@ -605,9 +575,7 @@ class QuarantineMediaInRoom(RestServlet): @defer.inlineCallbacks def on_POST(self, request, room_id): requester = yield self.auth.get_user_by_req(request) - is_admin = yield self.auth.is_server_admin(requester.user) - if not is_admin: - raise AuthError(403, "You are not a server admin") + yield assert_user_is_admin(self.auth, requester.user) num_quarantined = yield self.store.quarantine_media_ids_in_room( room_id, requester.user.to_string(), @@ -662,12 +630,10 @@ class ResetPasswordRestServlet(RestServlet): """Post request to allow an administrator reset password for a user. This needs user to have administrator access in Synapse. """ - UserID.from_string(target_user_id) requester = yield self.auth.get_user_by_req(request) - is_admin = yield self.auth.is_server_admin(requester.user) + yield assert_user_is_admin(self.auth, requester.user) - if not is_admin: - raise AuthError(403, "You are not a server admin") + UserID.from_string(target_user_id) params = parse_json_object_from_request(request) assert_params_in_dict(params, ["new_password"]) @@ -701,16 +667,9 @@ class GetUsersPaginatedRestServlet(RestServlet): """Get request to get specific number of users from Synapse. This needs user to have administrator access in Synapse. """ - target_user = UserID.from_string(target_user_id) - requester = yield self.auth.get_user_by_req(request) - is_admin = yield self.auth.is_server_admin(requester.user) + yield assert_requester_is_admin(self.auth, request) - if not is_admin: - raise AuthError(403, "You are not a server admin") - - # To allow all users to get the users list - # if not is_admin and target_user != auth_user: - # raise AuthError(403, "You are not a server admin") + target_user = UserID.from_string(target_user_id) if not self.hs.is_mine(target_user): raise SynapseError(400, "Can only users a local user") @@ -741,12 +700,8 @@ class GetUsersPaginatedRestServlet(RestServlet): Returns: 200 OK with json object {list[dict[str, Any]], count} or empty object. """ + yield assert_requester_is_admin(self.auth, request) UserID.from_string(target_user_id) - requester = yield self.auth.get_user_by_req(request) - is_admin = yield self.auth.is_server_admin(requester.user) - - if not is_admin: - raise AuthError(403, "You are not a server admin") order = "name" # order by name in user table params = parse_json_object_from_request(request) @@ -785,12 +740,9 @@ class SearchUsersRestServlet(RestServlet): search term. This needs user to have a administrator access in Synapse. """ - target_user = UserID.from_string(target_user_id) - requester = yield self.auth.get_user_by_req(request) - is_admin = yield self.auth.is_server_admin(requester.user) + yield assert_requester_is_admin(self.auth, request) - if not is_admin: - raise AuthError(403, "You are not a server admin") + target_user = UserID.from_string(target_user_id) # To allow all users to get the users list # if not is_admin and target_user != auth_user: @@ -821,10 +773,7 @@ class DeleteGroupAdminRestServlet(RestServlet): @defer.inlineCallbacks def on_POST(self, request, group_id): requester = yield self.auth.get_user_by_req(request) - is_admin = yield self.auth.is_server_admin(requester.user) - - if not is_admin: - raise AuthError(403, "You are not a server admin") + yield assert_user_is_admin(self.auth, requester.user) if not self.is_mine_id(group_id): raise SynapseError(400, "Can only delete local groups") @@ -847,11 +796,7 @@ class AccountValidityRenewServlet(RestServlet): @defer.inlineCallbacks def on_POST(self, request): - requester = yield self.auth.get_user_by_req(request) - is_admin = yield self.auth.is_server_admin(requester.user) - - if not is_admin: - raise AuthError(403, "You are not a server admin") + yield assert_requester_is_admin(self.auth, request) body = parse_json_object_from_request(request) diff --git a/synapse/rest/admin/_base.py b/synapse/rest/admin/_base.py new file mode 100644 index 0000000000..881d67b89c --- /dev/null +++ b/synapse/rest/admin/_base.py @@ -0,0 +1,59 @@ +# -*- 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. +from twisted.internet import defer + +from synapse.api.errors import AuthError + + +@defer.inlineCallbacks +def assert_requester_is_admin(auth, request): + """Verify that the requester is an admin user + + WARNING: MAKE SURE YOU YIELD ON THE RESULT! + + Args: + auth (synapse.api.auth.Auth): + request (twisted.web.server.Request): incoming request + + Returns: + Deferred + + Raises: + AuthError if the requester is not an admin + """ + requester = yield auth.get_user_by_req(request) + yield assert_user_is_admin(auth, requester.user) + + +@defer.inlineCallbacks +def assert_user_is_admin(auth, user_id): + """Verify that the given user is an admin user + + WARNING: MAKE SURE YOU YIELD ON THE RESULT! + + Args: + auth (synapse.api.auth.Auth): + user_id (UserID): + + Returns: + Deferred + + Raises: + AuthError if the user is not an admin + """ + + is_admin = yield auth.is_server_admin(user_id) + if not is_admin: + raise AuthError(403, "You are not a server admin") -- cgit 1.4.1