From 4a27000548d2b5194256152305fe121f671f0c81 Mon Sep 17 00:00:00 2001 From: Krombel Date: Mon, 16 Jul 2018 13:46:49 +0200 Subject: check isort by travis --- synapse/rest/client/v1/admin.py | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'synapse/rest/client/v1/admin.py') diff --git a/synapse/rest/client/v1/admin.py b/synapse/rest/client/v1/admin.py index 01c3f2eb04..2dc50e582b 100644 --- a/synapse/rest/client/v1/admin.py +++ b/synapse/rest/client/v1/admin.py @@ -24,9 +24,9 @@ from synapse.api.constants import Membership from synapse.api.errors import AuthError, Codes, NotFoundError, SynapseError from synapse.http.servlet import ( assert_params_in_dict, - parse_json_object_from_request, parse_integer, - parse_string + parse_json_object_from_request, + parse_string, ) from synapse.types import UserID, create_requester -- cgit 1.4.1 From 8cb8df55e9bb5de27d9e6570441560eb81db36df Mon Sep 17 00:00:00 2001 From: Erik Johnston Date: Wed, 18 Jul 2018 15:22:02 +0100 Subject: Split MessageHandler into read only and writers This will let us call the read only parts from workers, and so be able to move some APIs off of master, e.g. the `/state` API. --- synapse/handlers/__init__.py | 2 - synapse/handlers/message.py | 281 +++++++++++++++++++++------------------- synapse/rest/client/v1/admin.py | 8 +- synapse/rest/client/v1/room.py | 20 ++- synapse/server.py | 14 +- 5 files changed, 176 insertions(+), 149 deletions(-) (limited to 'synapse/rest/client/v1/admin.py') diff --git a/synapse/handlers/__init__.py b/synapse/handlers/__init__.py index 4b9923d8c0..0bad3e0a2e 100644 --- a/synapse/handlers/__init__.py +++ b/synapse/handlers/__init__.py @@ -17,7 +17,6 @@ from .admin import AdminHandler from .directory import DirectoryHandler from .federation import FederationHandler from .identity import IdentityHandler -from .message import MessageHandler from .register import RegistrationHandler from .room import RoomContextHandler from .search import SearchHandler @@ -44,7 +43,6 @@ class Handlers(object): def __init__(self, hs): self.registration_handler = RegistrationHandler(hs) - self.message_handler = MessageHandler(hs) self.federation_handler = FederationHandler(hs) self.directory_handler = DirectoryHandler(hs) self.admin_handler = AdminHandler(hs) diff --git a/synapse/handlers/message.py b/synapse/handlers/message.py index a39b852ceb..3c6f9860d5 100644 --- a/synapse/handlers/message.py +++ b/synapse/handlers/message.py @@ -75,12 +75,159 @@ class PurgeStatus(object): } -class MessageHandler(BaseHandler): +class MessageHandler(object): + """Contains some read only APIs to get state about a room + """ def __init__(self, hs): - super(MessageHandler, self).__init__(hs) - self.hs = hs + self.auth = hs.get_auth() + self.clock = hs.get_clock() self.state = hs.get_state_handler() + self.store = hs.get_datastore() + + @defer.inlineCallbacks + def get_room_data(self, user_id=None, room_id=None, + event_type=None, state_key="", is_guest=False): + """ Get data from a room. + + Args: + event : The room path event + Returns: + The path data content. + Raises: + SynapseError if something went wrong. + """ + membership, membership_event_id = yield self._check_in_room_or_world_readable( + room_id, user_id + ) + + if membership == Membership.JOIN: + data = yield self.state.get_current_state( + room_id, event_type, state_key + ) + elif membership == Membership.LEAVE: + key = (event_type, state_key) + room_state = yield self.store.get_state_for_events( + [membership_event_id], [key] + ) + data = room_state[membership_event_id].get(key) + + defer.returnValue(data) + + @defer.inlineCallbacks + def _check_in_room_or_world_readable(self, room_id, user_id): + try: + # check_user_was_in_room will return the most recent membership + # event for the user if: + # * The user is a non-guest user, and was ever in the room + # * The user is a guest user, and has joined the room + # else it will throw. + member_event = yield self.auth.check_user_was_in_room(room_id, user_id) + defer.returnValue((member_event.membership, member_event.event_id)) + return + except AuthError: + visibility = yield self.state.get_current_state( + room_id, EventTypes.RoomHistoryVisibility, "" + ) + if ( + visibility and + visibility.content["history_visibility"] == "world_readable" + ): + defer.returnValue((Membership.JOIN, None)) + return + raise AuthError( + 403, "Guest access not allowed", errcode=Codes.GUEST_ACCESS_FORBIDDEN + ) + + @defer.inlineCallbacks + def get_state_events(self, user_id, room_id, is_guest=False): + """Retrieve all state events for a given room. If the user is + joined to the room then return the current state. If the user has + left the room return the state events from when they left. + + Args: + user_id(str): The user requesting state events. + room_id(str): The room ID to get all state events from. + Returns: + A list of dicts representing state events. [{}, {}, {}] + """ + membership, membership_event_id = yield self._check_in_room_or_world_readable( + room_id, user_id + ) + + if membership == Membership.JOIN: + room_state = yield self.state.get_current_state(room_id) + elif membership == Membership.LEAVE: + room_state = yield self.store.get_state_for_events( + [membership_event_id], None + ) + room_state = room_state[membership_event_id] + + now = self.clock.time_msec() + defer.returnValue( + [serialize_event(c, now) for c in room_state.values()] + ) + + @defer.inlineCallbacks + def get_joined_members(self, requester, room_id): + """Get all the joined members in the room and their profile information. + + If the user has left the room return the state events from when they left. + + Args: + requester(Requester): The user requesting state events. + room_id(str): The room ID to get all state events from. + Returns: + A dict of user_id to profile info + """ + user_id = requester.user.to_string() + if not requester.app_service: + # We check AS auth after fetching the room membership, as it + # requires us to pull out all joined members anyway. + membership, _ = yield self._check_in_room_or_world_readable( + room_id, user_id + ) + if membership != Membership.JOIN: + raise NotImplementedError( + "Getting joined members after leaving is not implemented" + ) + + users_with_profile = yield self.state.get_current_user_in_room(room_id) + + # If this is an AS, double check that they are allowed to see the members. + # This can either be because the AS user is in the room or because there + # is a user in the room that the AS is "interested in" + if requester.app_service and user_id not in users_with_profile: + for uid in users_with_profile: + if requester.app_service.is_interested_in_user(uid): + break + else: + # Loop fell through, AS has no interested users in room + raise AuthError(403, "Appservice not in room") + + defer.returnValue({ + user_id: { + "avatar_url": profile.avatar_url, + "display_name": profile.display_name, + } + for user_id, profile in iteritems(users_with_profile) + }) + + +class PaginationHandler(MessageHandler): + """Handles pagination and purge history requests. + + These are in the same handler due to the fact we need to block clients + paginating during a purge. + + This subclasses MessageHandler to get at _check_in_room_or_world_readable + """ + + def __init__(self, hs): + super(PaginationHandler, self).__init__(hs) + + self.hs = hs + self.store = hs.get_datastore() self.clock = hs.get_clock() self.pagination_lock = ReadWriteLock() @@ -274,134 +421,6 @@ class MessageHandler(BaseHandler): defer.returnValue(chunk) - @defer.inlineCallbacks - def get_room_data(self, user_id=None, room_id=None, - event_type=None, state_key="", is_guest=False): - """ Get data from a room. - - Args: - event : The room path event - Returns: - The path data content. - Raises: - SynapseError if something went wrong. - """ - membership, membership_event_id = yield self._check_in_room_or_world_readable( - room_id, user_id - ) - - if membership == Membership.JOIN: - data = yield self.state_handler.get_current_state( - room_id, event_type, state_key - ) - elif membership == Membership.LEAVE: - key = (event_type, state_key) - room_state = yield self.store.get_state_for_events( - [membership_event_id], [key] - ) - data = room_state[membership_event_id].get(key) - - defer.returnValue(data) - - @defer.inlineCallbacks - def _check_in_room_or_world_readable(self, room_id, user_id): - try: - # check_user_was_in_room will return the most recent membership - # event for the user if: - # * The user is a non-guest user, and was ever in the room - # * The user is a guest user, and has joined the room - # else it will throw. - member_event = yield self.auth.check_user_was_in_room(room_id, user_id) - defer.returnValue((member_event.membership, member_event.event_id)) - return - except AuthError: - visibility = yield self.state_handler.get_current_state( - room_id, EventTypes.RoomHistoryVisibility, "" - ) - if ( - visibility and - visibility.content["history_visibility"] == "world_readable" - ): - defer.returnValue((Membership.JOIN, None)) - return - raise AuthError( - 403, "Guest access not allowed", errcode=Codes.GUEST_ACCESS_FORBIDDEN - ) - - @defer.inlineCallbacks - def get_state_events(self, user_id, room_id, is_guest=False): - """Retrieve all state events for a given room. If the user is - joined to the room then return the current state. If the user has - left the room return the state events from when they left. - - Args: - user_id(str): The user requesting state events. - room_id(str): The room ID to get all state events from. - Returns: - A list of dicts representing state events. [{}, {}, {}] - """ - membership, membership_event_id = yield self._check_in_room_or_world_readable( - room_id, user_id - ) - - if membership == Membership.JOIN: - room_state = yield self.state_handler.get_current_state(room_id) - elif membership == Membership.LEAVE: - room_state = yield self.store.get_state_for_events( - [membership_event_id], None - ) - room_state = room_state[membership_event_id] - - now = self.clock.time_msec() - defer.returnValue( - [serialize_event(c, now) for c in room_state.values()] - ) - - @defer.inlineCallbacks - def get_joined_members(self, requester, room_id): - """Get all the joined members in the room and their profile information. - - If the user has left the room return the state events from when they left. - - Args: - requester(Requester): The user requesting state events. - room_id(str): The room ID to get all state events from. - Returns: - A dict of user_id to profile info - """ - user_id = requester.user.to_string() - if not requester.app_service: - # We check AS auth after fetching the room membership, as it - # requires us to pull out all joined members anyway. - membership, _ = yield self._check_in_room_or_world_readable( - room_id, user_id - ) - if membership != Membership.JOIN: - raise NotImplementedError( - "Getting joined members after leaving is not implemented" - ) - - users_with_profile = yield self.state.get_current_user_in_room(room_id) - - # If this is an AS, double check that they are allowed to see the members. - # This can either be because the AS user is in the room or because there - # is a user in the room that the AS is "interested in" - if requester.app_service and user_id not in users_with_profile: - for uid in users_with_profile: - if requester.app_service.is_interested_in_user(uid): - break - else: - # Loop fell through, AS has no interested users in room - raise AuthError(403, "Appservice not in room") - - defer.returnValue({ - user_id: { - "avatar_url": profile.avatar_url, - "display_name": profile.display_name, - } - for user_id, profile in iteritems(users_with_profile) - }) - class EventCreationHandler(object): def __init__(self, hs): diff --git a/synapse/rest/client/v1/admin.py b/synapse/rest/client/v1/admin.py index 2dc50e582b..13fd63a5b2 100644 --- a/synapse/rest/client/v1/admin.py +++ b/synapse/rest/client/v1/admin.py @@ -123,7 +123,7 @@ class PurgeHistoryRestServlet(ClientV1RestServlet): hs (synapse.server.HomeServer) """ super(PurgeHistoryRestServlet, self).__init__(hs) - self.handlers = hs.get_handlers() + self.pagination_handler = hs.get_pagination_handler() self.store = hs.get_datastore() @defer.inlineCallbacks @@ -198,7 +198,7 @@ class PurgeHistoryRestServlet(ClientV1RestServlet): errcode=Codes.BAD_JSON, ) - purge_id = yield self.handlers.message_handler.start_purge_history( + purge_id = yield self.pagination_handler.start_purge_history( room_id, token, delete_local_events=delete_local_events, ) @@ -220,7 +220,7 @@ class PurgeHistoryStatusRestServlet(ClientV1RestServlet): hs (synapse.server.HomeServer) """ super(PurgeHistoryStatusRestServlet, self).__init__(hs) - self.handlers = hs.get_handlers() + self.pagination_handler = hs.get_pagination_handler() @defer.inlineCallbacks def on_GET(self, request, purge_id): @@ -230,7 +230,7 @@ class PurgeHistoryStatusRestServlet(ClientV1RestServlet): if not is_admin: raise AuthError(403, "You are not a server admin") - purge_status = self.handlers.message_handler.get_purge_status(purge_id) + purge_status = self.pagination_handler.get_purge_status(purge_id) if purge_status is None: raise NotFoundError("purge id '%s' not found" % purge_id) diff --git a/synapse/rest/client/v1/room.py b/synapse/rest/client/v1/room.py index 3d62447854..8b6be9da96 100644 --- a/synapse/rest/client/v1/room.py +++ b/synapse/rest/client/v1/room.py @@ -90,6 +90,7 @@ class RoomStateEventRestServlet(ClientV1RestServlet): self.handlers = hs.get_handlers() self.event_creation_hander = hs.get_event_creation_handler() self.room_member_handler = hs.get_room_member_handler() + self.message_handler = hs.get_message_handler() def register(self, http_server): # /room/$roomid/state/$eventtype @@ -124,7 +125,7 @@ class RoomStateEventRestServlet(ClientV1RestServlet): format = parse_string(request, "format", default="content", allowed_values=["content", "event"]) - msg_handler = self.handlers.message_handler + msg_handler = self.message_handler data = yield msg_handler.get_room_data( user_id=requester.user.to_string(), room_id=room_id, @@ -377,14 +378,13 @@ class RoomMemberListRestServlet(ClientV1RestServlet): def __init__(self, hs): super(RoomMemberListRestServlet, self).__init__(hs) - self.handlers = hs.get_handlers() + self.message_handler = hs.get_message_handler() @defer.inlineCallbacks def on_GET(self, request, room_id): # TODO support Pagination stream API (limit/tokens) requester = yield self.auth.get_user_by_req(request) - handler = self.handlers.message_handler - events = yield handler.get_state_events( + events = yield self.message_handler.get_state_events( room_id=room_id, user_id=requester.user.to_string(), ) @@ -406,7 +406,7 @@ class JoinedRoomMemberListRestServlet(ClientV1RestServlet): def __init__(self, hs): super(JoinedRoomMemberListRestServlet, self).__init__(hs) - self.message_handler = hs.get_handlers().message_handler + self.message_handler = hs.get_message_handler() @defer.inlineCallbacks def on_GET(self, request, room_id): @@ -427,7 +427,7 @@ class RoomMessageListRestServlet(ClientV1RestServlet): def __init__(self, hs): super(RoomMessageListRestServlet, self).__init__(hs) - self.handlers = hs.get_handlers() + self.pagination_handler = hs.get_pagination_handler() @defer.inlineCallbacks def on_GET(self, request, room_id): @@ -442,8 +442,7 @@ class RoomMessageListRestServlet(ClientV1RestServlet): event_filter = Filter(json.loads(filter_json)) else: event_filter = None - handler = self.handlers.message_handler - msgs = yield handler.get_messages( + msgs = yield self.pagination_handler.get_messages( room_id=room_id, requester=requester, pagin_config=pagination_config, @@ -460,14 +459,13 @@ class RoomStateRestServlet(ClientV1RestServlet): def __init__(self, hs): super(RoomStateRestServlet, self).__init__(hs) - self.handlers = hs.get_handlers() + self.message_handler = hs.get_message_handler() @defer.inlineCallbacks def on_GET(self, request, room_id): requester = yield self.auth.get_user_by_req(request, allow_guest=True) - handler = self.handlers.message_handler # Get all the current state for this room - events = yield handler.get_state_events( + events = yield self.message_handler.get_state_events( room_id=room_id, user_id=requester.user.to_string(), is_guest=requester.is_guest, diff --git a/synapse/server.py b/synapse/server.py index 92bea96c5c..b93bd6d7d9 100644 --- a/synapse/server.py +++ b/synapse/server.py @@ -52,7 +52,11 @@ from synapse.handlers.e2e_keys import E2eKeysHandler from synapse.handlers.events import EventHandler, EventStreamHandler from synapse.handlers.groups_local import GroupsLocalHandler from synapse.handlers.initial_sync import InitialSyncHandler -from synapse.handlers.message import EventCreationHandler +from synapse.handlers.message import ( + EventCreationHandler, + MessageHandler, + PaginationHandler, +) from synapse.handlers.presence import PresenceHandler from synapse.handlers.profile import ProfileHandler from synapse.handlers.read_marker import ReadMarkerHandler @@ -163,6 +167,8 @@ class HomeServer(object): 'federation_registry', 'server_notices_manager', 'server_notices_sender', + 'message_handler', + 'pagination_handler', ] def __init__(self, hostname, reactor=None, **kwargs): @@ -426,6 +432,12 @@ class HomeServer(object): return WorkerServerNoticesSender(self) return ServerNoticesSender(self) + def build_message_handler(self): + return MessageHandler(self) + + def build_pagination_handler(self): + return PaginationHandler(self) + def remove_pusher(self, app_id, push_key, user_id): return self.get_pusherpool().remove_pusher(app_id, push_key, user_id) -- cgit 1.4.1 From e1a237eaabf0ba37f242897700f9bf00729976b8 Mon Sep 17 00:00:00 2001 From: Amber Brown Date: Fri, 20 Jul 2018 22:41:13 +1000 Subject: Admin API for creating new users (#3415) --- changelog.d/3415.misc | 0 docs/admin_api/register_api.rst | 63 ++++++++ scripts/register_new_matrix_user | 32 +++- synapse/rest/client/v1/admin.py | 122 +++++++++++++++ synapse/secrets.py | 42 +++++ synapse/server.py | 5 + tests/rest/client/v1/test_admin.py | 305 +++++++++++++++++++++++++++++++++++++ tests/utils.py | 3 + 8 files changed, 569 insertions(+), 3 deletions(-) create mode 100644 changelog.d/3415.misc create mode 100644 docs/admin_api/register_api.rst create mode 100644 synapse/secrets.py create mode 100644 tests/rest/client/v1/test_admin.py (limited to 'synapse/rest/client/v1/admin.py') diff --git a/changelog.d/3415.misc b/changelog.d/3415.misc new file mode 100644 index 0000000000..e69de29bb2 diff --git a/docs/admin_api/register_api.rst b/docs/admin_api/register_api.rst new file mode 100644 index 0000000000..209cd140fd --- /dev/null +++ b/docs/admin_api/register_api.rst @@ -0,0 +1,63 @@ +Shared-Secret Registration +========================== + +This API allows for the creation of users in an administrative and +non-interactive way. This is generally used for bootstrapping a Synapse +instance with administrator accounts. + +To authenticate yourself to the server, you will need both the shared secret +(``registration_shared_secret`` in the homeserver configuration), and a +one-time nonce. If the registration shared secret is not configured, this API +is not enabled. + +To fetch the nonce, you need to request one from the API:: + + > GET /_matrix/client/r0/admin/register + + < {"nonce": "thisisanonce"} + +Once you have the nonce, you can make a ``POST`` to the same URL with a JSON +body containing the nonce, username, password, whether they are an admin +(optional, False by default), and a HMAC digest of the content. + +As an example:: + + > POST /_matrix/client/r0/admin/register + > { + "nonce": "thisisanonce", + "username": "pepper_roni", + "password": "pizza", + "admin": true, + "mac": "mac_digest_here" + } + + < { + "access_token": "token_here", + "user_id": "@pepper_roni@test", + "home_server": "test", + "device_id": "device_id_here" + } + +The MAC is the hex digest output of the HMAC-SHA1 algorithm, with the key being +the shared secret and the content being the nonce, user, password, and either +the string "admin" or "notadmin", each separated by NULs. For an example of +generation in Python:: + + import hmac, hashlib + + def generate_mac(nonce, user, password, admin=False): + + mac = hmac.new( + key=shared_secret, + digestmod=hashlib.sha1, + ) + + mac.update(nonce.encode('utf8')) + mac.update(b"\x00") + mac.update(user.encode('utf8')) + mac.update(b"\x00") + mac.update(password.encode('utf8')) + mac.update(b"\x00") + mac.update(b"admin" if admin else b"notadmin") + + return mac.hexdigest() diff --git a/scripts/register_new_matrix_user b/scripts/register_new_matrix_user index 12ed20d623..8c3d429351 100755 --- a/scripts/register_new_matrix_user +++ b/scripts/register_new_matrix_user @@ -26,11 +26,37 @@ import yaml def request_registration(user, password, server_location, shared_secret, admin=False): + req = urllib2.Request( + "%s/_matrix/client/r0/admin/register" % (server_location,), + headers={'Content-Type': 'application/json'} + ) + + try: + if sys.version_info[:3] >= (2, 7, 9): + # As of version 2.7.9, urllib2 now checks SSL certs + import ssl + f = urllib2.urlopen(req, context=ssl.SSLContext(ssl.PROTOCOL_SSLv23)) + else: + f = urllib2.urlopen(req) + body = f.read() + f.close() + nonce = json.loads(body)["nonce"] + except urllib2.HTTPError as e: + print "ERROR! Received %d %s" % (e.code, e.reason,) + if 400 <= e.code < 500: + if e.info().type == "application/json": + resp = json.load(e) + if "error" in resp: + print resp["error"] + sys.exit(1) + mac = hmac.new( key=shared_secret, digestmod=hashlib.sha1, ) + mac.update(nonce) + mac.update("\x00") mac.update(user) mac.update("\x00") mac.update(password) @@ -40,10 +66,10 @@ def request_registration(user, password, server_location, shared_secret, admin=F mac = mac.hexdigest() data = { - "user": user, + "nonce": nonce, + "username": user, "password": password, "mac": mac, - "type": "org.matrix.login.shared_secret", "admin": admin, } @@ -52,7 +78,7 @@ def request_registration(user, password, server_location, shared_secret, admin=F print "Sending registration request..." req = urllib2.Request( - "%s/_matrix/client/api/v1/register" % (server_location,), + "%s/_matrix/client/r0/admin/register" % (server_location,), data=json.dumps(data), headers={'Content-Type': 'application/json'} ) diff --git a/synapse/rest/client/v1/admin.py b/synapse/rest/client/v1/admin.py index 2dc50e582b..9e9c175970 100644 --- a/synapse/rest/client/v1/admin.py +++ b/synapse/rest/client/v1/admin.py @@ -14,6 +14,8 @@ # See the License for the specific language governing permissions and # limitations under the License. +import hashlib +import hmac import logging from six.moves import http_client @@ -63,6 +65,125 @@ class UsersRestServlet(ClientV1RestServlet): defer.returnValue((200, ret)) +class UserRegisterServlet(ClientV1RestServlet): + """ + Attributes: + NONCE_TIMEOUT (int): Seconds until a generated nonce won't be accepted + nonces (dict[str, int]): The nonces that we will accept. A dict of + nonce to the time it was generated, in int seconds. + """ + PATTERNS = client_path_patterns("/admin/register") + NONCE_TIMEOUT = 60 + + def __init__(self, hs): + super(UserRegisterServlet, self).__init__(hs) + self.handlers = hs.get_handlers() + self.reactor = hs.get_reactor() + self.nonces = {} + self.hs = hs + + def _clear_old_nonces(self): + """ + Clear out old nonces that are older than NONCE_TIMEOUT. + """ + now = int(self.reactor.seconds()) + + for k, v in list(self.nonces.items()): + if now - v > self.NONCE_TIMEOUT: + del self.nonces[k] + + def on_GET(self, request): + """ + Generate a new nonce. + """ + self._clear_old_nonces() + + nonce = self.hs.get_secrets().token_hex(64) + self.nonces[nonce] = int(self.reactor.seconds()) + return (200, {"nonce": nonce.encode('ascii')}) + + @defer.inlineCallbacks + def on_POST(self, request): + self._clear_old_nonces() + + if not self.hs.config.registration_shared_secret: + raise SynapseError(400, "Shared secret registration is not enabled") + + body = parse_json_object_from_request(request) + + if "nonce" not in body: + raise SynapseError( + 400, "nonce must be specified", errcode=Codes.BAD_JSON, + ) + + nonce = body["nonce"] + + if nonce not in self.nonces: + raise SynapseError( + 400, "unrecognised nonce", + ) + + # Delete the nonce, so it can't be reused, even if it's invalid + del self.nonces[nonce] + + if "username" not in body: + raise SynapseError( + 400, "username must be specified", errcode=Codes.BAD_JSON, + ) + else: + if (not isinstance(body['username'], str) or len(body['username']) > 512): + raise SynapseError(400, "Invalid username") + + username = body["username"].encode("utf-8") + if b"\x00" in username: + raise SynapseError(400, "Invalid username") + + if "password" not in body: + raise SynapseError( + 400, "password must be specified", errcode=Codes.BAD_JSON, + ) + else: + if (not isinstance(body['password'], str) or len(body['password']) > 512): + raise SynapseError(400, "Invalid password") + + password = body["password"].encode("utf-8") + if b"\x00" in password: + raise SynapseError(400, "Invalid password") + + admin = body.get("admin", None) + got_mac = body["mac"] + + want_mac = hmac.new( + key=self.hs.config.registration_shared_secret.encode(), + digestmod=hashlib.sha1, + ) + want_mac.update(nonce) + want_mac.update(b"\x00") + want_mac.update(username) + want_mac.update(b"\x00") + want_mac.update(password) + want_mac.update(b"\x00") + want_mac.update(b"admin" if admin else b"notadmin") + want_mac = want_mac.hexdigest() + + if not hmac.compare_digest(want_mac, got_mac): + raise SynapseError( + 403, "HMAC incorrect", + ) + + # Reuse the parts of RegisterRestServlet to reduce code duplication + from synapse.rest.client.v2_alpha.register import RegisterRestServlet + register = RegisterRestServlet(self.hs) + + (user_id, _) = yield register.registration_handler.register( + localpart=username.lower(), password=password, admin=bool(admin), + generate_token=False, + ) + + result = yield register._create_registration_details(user_id, body) + defer.returnValue((200, result)) + + class WhoisRestServlet(ClientV1RestServlet): PATTERNS = client_path_patterns("/admin/whois/(?P[^/]*)") @@ -614,3 +735,4 @@ def register_servlets(hs, http_server): ShutdownRoomRestServlet(hs).register(http_server) QuarantineMediaInRoom(hs).register(http_server) ListMediaInRoom(hs).register(http_server) + UserRegisterServlet(hs).register(http_server) diff --git a/synapse/secrets.py b/synapse/secrets.py new file mode 100644 index 0000000000..f397daaa5e --- /dev/null +++ b/synapse/secrets.py @@ -0,0 +1,42 @@ +# -*- coding: utf-8 -*- +# Copyright 2018 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. + +""" +Injectable secrets module for Synapse. + +See https://docs.python.org/3/library/secrets.html#module-secrets for the API +used in Python 3.6, and the API emulated in Python 2.7. +""" + +import six + +if six.PY3: + import secrets + + def Secrets(): + return secrets + + +else: + + import os + import binascii + + class Secrets(object): + def token_bytes(self, nbytes=32): + return os.urandom(nbytes) + + def token_hex(self, nbytes=32): + return binascii.hexlify(self.token_bytes(nbytes)) diff --git a/synapse/server.py b/synapse/server.py index 92bea96c5c..fd4f992258 100644 --- a/synapse/server.py +++ b/synapse/server.py @@ -74,6 +74,7 @@ from synapse.rest.media.v1.media_repository import ( MediaRepository, MediaRepositoryResource, ) +from synapse.secrets import Secrets from synapse.server_notices.server_notices_manager import ServerNoticesManager from synapse.server_notices.server_notices_sender import ServerNoticesSender from synapse.server_notices.worker_server_notices_sender import WorkerServerNoticesSender @@ -158,6 +159,7 @@ class HomeServer(object): 'groups_server_handler', 'groups_attestation_signing', 'groups_attestation_renewer', + 'secrets', 'spam_checker', 'room_member_handler', 'federation_registry', @@ -405,6 +407,9 @@ class HomeServer(object): def build_groups_attestation_renewer(self): return GroupAttestionRenewer(self) + def build_secrets(self): + return Secrets() + def build_spam_checker(self): return SpamChecker(self) diff --git a/tests/rest/client/v1/test_admin.py b/tests/rest/client/v1/test_admin.py new file mode 100644 index 0000000000..8c90145601 --- /dev/null +++ b/tests/rest/client/v1/test_admin.py @@ -0,0 +1,305 @@ +# -*- coding: utf-8 -*- +# Copyright 2018 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 hashlib +import hmac +import json + +from mock import Mock + +from synapse.http.server import JsonResource +from synapse.rest.client.v1.admin import register_servlets +from synapse.util import Clock + +from tests import unittest +from tests.server import ( + ThreadedMemoryReactorClock, + make_request, + render, + setup_test_homeserver, +) + + +class UserRegisterTestCase(unittest.TestCase): + def setUp(self): + + self.clock = ThreadedMemoryReactorClock() + self.hs_clock = Clock(self.clock) + self.url = "/_matrix/client/r0/admin/register" + + self.registration_handler = Mock() + self.identity_handler = Mock() + self.login_handler = Mock() + self.device_handler = Mock() + self.device_handler.check_device_registered = Mock(return_value="FAKE") + + self.datastore = Mock(return_value=Mock()) + self.datastore.get_current_state_deltas = Mock(return_value=[]) + + self.secrets = Mock() + + self.hs = setup_test_homeserver( + http_client=None, clock=self.hs_clock, reactor=self.clock + ) + + self.hs.config.registration_shared_secret = u"shared" + + self.hs.get_media_repository = Mock() + self.hs.get_deactivate_account_handler = Mock() + + self.resource = JsonResource(self.hs) + register_servlets(self.hs, self.resource) + + def test_disabled(self): + """ + If there is no shared secret, registration through this method will be + prevented. + """ + self.hs.config.registration_shared_secret = None + + request, channel = make_request("POST", self.url, b'{}') + render(request, self.resource, self.clock) + + self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"]) + self.assertEqual( + 'Shared secret registration is not enabled', channel.json_body["error"] + ) + + def test_get_nonce(self): + """ + Calling GET on the endpoint will return a randomised nonce, using the + homeserver's secrets provider. + """ + secrets = Mock() + secrets.token_hex = Mock(return_value="abcd") + + self.hs.get_secrets = Mock(return_value=secrets) + + request, channel = make_request("GET", self.url) + render(request, self.resource, self.clock) + + self.assertEqual(channel.json_body, {"nonce": "abcd"}) + + def test_expired_nonce(self): + """ + Calling GET on the endpoint will return a randomised nonce, which will + only last for SALT_TIMEOUT (60s). + """ + request, channel = make_request("GET", self.url) + render(request, self.resource, self.clock) + nonce = channel.json_body["nonce"] + + # 59 seconds + self.clock.advance(59) + + body = json.dumps({"nonce": nonce}) + request, channel = make_request("POST", self.url, body.encode('utf8')) + render(request, self.resource, self.clock) + + self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"]) + self.assertEqual('username must be specified', channel.json_body["error"]) + + # 61 seconds + self.clock.advance(2) + + request, channel = make_request("POST", self.url, body.encode('utf8')) + render(request, self.resource, self.clock) + + self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"]) + self.assertEqual('unrecognised nonce', channel.json_body["error"]) + + def test_register_incorrect_nonce(self): + """ + Only the provided nonce can be used, as it's checked in the MAC. + """ + request, channel = make_request("GET", self.url) + render(request, self.resource, self.clock) + nonce = channel.json_body["nonce"] + + want_mac = hmac.new(key=b"shared", digestmod=hashlib.sha1) + want_mac.update(b"notthenonce\x00bob\x00abc123\x00admin") + want_mac = want_mac.hexdigest() + + body = json.dumps( + { + "nonce": nonce, + "username": "bob", + "password": "abc123", + "admin": True, + "mac": want_mac, + } + ).encode('utf8') + request, channel = make_request("POST", self.url, body.encode('utf8')) + render(request, self.resource, self.clock) + + self.assertEqual(403, int(channel.result["code"]), msg=channel.result["body"]) + self.assertEqual("HMAC incorrect", channel.json_body["error"]) + + def test_register_correct_nonce(self): + """ + When the correct nonce is provided, and the right key is provided, the + user is registered. + """ + request, channel = make_request("GET", self.url) + render(request, self.resource, self.clock) + nonce = channel.json_body["nonce"] + + want_mac = hmac.new(key=b"shared", digestmod=hashlib.sha1) + want_mac.update(nonce.encode('ascii') + b"\x00bob\x00abc123\x00admin") + want_mac = want_mac.hexdigest() + + body = json.dumps( + { + "nonce": nonce, + "username": "bob", + "password": "abc123", + "admin": True, + "mac": want_mac, + } + ).encode('utf8') + request, channel = make_request("POST", self.url, body.encode('utf8')) + render(request, self.resource, self.clock) + + self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"]) + self.assertEqual("@bob:test", channel.json_body["user_id"]) + + def test_nonce_reuse(self): + """ + A valid unrecognised nonce. + """ + request, channel = make_request("GET", self.url) + render(request, self.resource, self.clock) + nonce = channel.json_body["nonce"] + + want_mac = hmac.new(key=b"shared", digestmod=hashlib.sha1) + want_mac.update(nonce.encode('ascii') + b"\x00bob\x00abc123\x00admin") + want_mac = want_mac.hexdigest() + + body = json.dumps( + { + "nonce": nonce, + "username": "bob", + "password": "abc123", + "admin": True, + "mac": want_mac, + } + ).encode('utf8') + request, channel = make_request("POST", self.url, body.encode('utf8')) + render(request, self.resource, self.clock) + + self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"]) + self.assertEqual("@bob:test", channel.json_body["user_id"]) + + # Now, try and reuse it + request, channel = make_request("POST", self.url, body.encode('utf8')) + render(request, self.resource, self.clock) + + self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"]) + self.assertEqual('unrecognised nonce', channel.json_body["error"]) + + def test_missing_parts(self): + """ + Synapse will complain if you don't give nonce, username, password, and + mac. Admin is optional. Additional checks are done for length and + type. + """ + def nonce(): + request, channel = make_request("GET", self.url) + render(request, self.resource, self.clock) + return channel.json_body["nonce"] + + # + # Nonce check + # + + # Must be present + body = json.dumps({}) + request, channel = make_request("POST", self.url, body.encode('utf8')) + render(request, self.resource, self.clock) + + self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"]) + self.assertEqual('nonce must be specified', channel.json_body["error"]) + + # + # Username checks + # + + # Must be present + body = json.dumps({"nonce": nonce()}) + request, channel = make_request("POST", self.url, body.encode('utf8')) + render(request, self.resource, self.clock) + + self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"]) + self.assertEqual('username must be specified', channel.json_body["error"]) + + # Must be a string + body = json.dumps({"nonce": nonce(), "username": 1234}) + request, channel = make_request("POST", self.url, body.encode('utf8')) + render(request, self.resource, self.clock) + + self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"]) + self.assertEqual('Invalid username', channel.json_body["error"]) + + # Must not have null bytes + body = json.dumps({"nonce": nonce(), "username": b"abcd\x00"}) + request, channel = make_request("POST", self.url, body.encode('utf8')) + render(request, self.resource, self.clock) + + self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"]) + self.assertEqual('Invalid username', channel.json_body["error"]) + + # Must not have null bytes + body = json.dumps({"nonce": nonce(), "username": "a" * 1000}) + request, channel = make_request("POST", self.url, body.encode('utf8')) + render(request, self.resource, self.clock) + + self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"]) + self.assertEqual('Invalid username', channel.json_body["error"]) + + # + # Username checks + # + + # Must be present + body = json.dumps({"nonce": nonce(), "username": "a"}) + request, channel = make_request("POST", self.url, body.encode('utf8')) + render(request, self.resource, self.clock) + + self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"]) + self.assertEqual('password must be specified', channel.json_body["error"]) + + # Must be a string + body = json.dumps({"nonce": nonce(), "username": "a", "password": 1234}) + request, channel = make_request("POST", self.url, body.encode('utf8')) + render(request, self.resource, self.clock) + + self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"]) + self.assertEqual('Invalid password', channel.json_body["error"]) + + # Must not have null bytes + body = json.dumps({"nonce": nonce(), "username": "a", "password": b"abcd\x00"}) + request, channel = make_request("POST", self.url, body.encode('utf8')) + render(request, self.resource, self.clock) + + self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"]) + self.assertEqual('Invalid password', channel.json_body["error"]) + + # Super long + body = json.dumps({"nonce": nonce(), "username": "a", "password": "A" * 1000}) + request, channel = make_request("POST", self.url, body.encode('utf8')) + render(request, self.resource, self.clock) + + self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"]) + self.assertEqual('Invalid password', channel.json_body["error"]) diff --git a/tests/utils.py b/tests/utils.py index e488238bb3..c3dbff8507 100644 --- a/tests/utils.py +++ b/tests/utils.py @@ -71,6 +71,8 @@ def setup_test_homeserver(name="test", datastore=None, config=None, reactor=None config.user_directory_search_all_users = False config.user_consent_server_notice_content = None config.block_events_without_consent_error = None + config.media_storage_providers = [] + config.auto_join_rooms = [] # disable user directory updates, because they get done in the # background, which upsets the test runner. @@ -136,6 +138,7 @@ def setup_test_homeserver(name="test", datastore=None, config=None, reactor=None database_engine=db_engine, room_list_handler=object(), tls_server_context_factory=Mock(), + reactor=reactor, **kargs ) -- cgit 1.4.1