diff options
Diffstat (limited to 'synapse/rest/client/v1')
| -rw-r--r-- | synapse/rest/client/v1/admin.py | 134 | ||||
| -rw-r--r-- | synapse/rest/client/v1/initial_sync.py | 2 | ||||
| -rw-r--r-- | synapse/rest/client/v1/register.py | 436 | ||||
| -rw-r--r-- | synapse/rest/client/v1/room.py | 29 |
4 files changed, 144 insertions, 457 deletions
diff --git a/synapse/rest/client/v1/admin.py b/synapse/rest/client/v1/admin.py index 01c3f2eb04..99f6c6e3c3 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 @@ -24,9 +26,9 @@ 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 @@ -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<user_id>[^/]*)") @@ -123,7 +244,7 @@ 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 +319,7 @@ 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 +341,7 @@ 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 +351,7 @@ 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) @@ -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/rest/client/v1/initial_sync.py b/synapse/rest/client/v1/initial_sync.py index 00a1a99feb..fd5f85b53e 100644 --- a/synapse/rest/client/v1/initial_sync.py +++ b/synapse/rest/client/v1/initial_sync.py @@ -15,8 +15,8 @@ from twisted.internet import defer -from synapse.streams.config import PaginationConfig from synapse.http.servlet import parse_boolean +from synapse.streams.config import PaginationConfig from .base import ClientV1RestServlet, client_path_patterns diff --git a/synapse/rest/client/v1/register.py b/synapse/rest/client/v1/register.py deleted file mode 100644 index 25a143af8d..0000000000 --- a/synapse/rest/client/v1/register.py +++ /dev/null @@ -1,436 +0,0 @@ -# -*- coding: utf-8 -*- -# Copyright 2014-2016 OpenMarket 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. - -"""This module contains REST servlets to do with registration: /register""" -import hmac -import logging -from hashlib import sha1 - -from twisted.internet import defer - -import synapse.util.stringutils as stringutils -from synapse.api.constants import LoginType -from synapse.api.errors import Codes, SynapseError -from synapse.http.servlet import assert_params_in_dict, parse_json_object_from_request -from synapse.types import create_requester - -from .base import ClientV1RestServlet, client_path_patterns - -logger = logging.getLogger(__name__) - - -# We ought to be using hmac.compare_digest() but on older pythons it doesn't -# exist. It's a _really minor_ security flaw to use plain string comparison -# because the timing attack is so obscured by all the other code here it's -# unlikely to make much difference -if hasattr(hmac, "compare_digest"): - compare_digest = hmac.compare_digest -else: - def compare_digest(a, b): - return a == b - - -class RegisterRestServlet(ClientV1RestServlet): - """Handles registration with the home server. - - This servlet is in control of the registration flow; the registration - handler doesn't have a concept of multi-stages or sessions. - """ - - PATTERNS = client_path_patterns("/register$", releases=(), include_in_unstable=False) - - def __init__(self, hs): - """ - Args: - hs (synapse.server.HomeServer): server - """ - super(RegisterRestServlet, self).__init__(hs) - # sessions are stored as: - # self.sessions = { - # "session_id" : { __session_dict__ } - # } - # TODO: persistent storage - self.sessions = {} - self.enable_registration = hs.config.enable_registration - self.auth = hs.get_auth() - self.auth_handler = hs.get_auth_handler() - self.handlers = hs.get_handlers() - - def on_GET(self, request): - - require_email = 'email' in self.hs.config.registrations_require_3pid - require_msisdn = 'msisdn' in self.hs.config.registrations_require_3pid - - flows = [] - if self.hs.config.enable_registration_captcha: - # only support the email-only flow if we don't require MSISDN 3PIDs - if not require_msisdn: - flows.extend([ - { - "type": LoginType.RECAPTCHA, - "stages": [ - LoginType.RECAPTCHA, - LoginType.EMAIL_IDENTITY, - LoginType.PASSWORD - ] - }, - ]) - # only support 3PIDless registration if no 3PIDs are required - if not require_email and not require_msisdn: - flows.extend([ - { - "type": LoginType.RECAPTCHA, - "stages": [LoginType.RECAPTCHA, LoginType.PASSWORD] - } - ]) - else: - # only support the email-only flow if we don't require MSISDN 3PIDs - if require_email or not require_msisdn: - flows.extend([ - { - "type": LoginType.EMAIL_IDENTITY, - "stages": [ - LoginType.EMAIL_IDENTITY, LoginType.PASSWORD - ] - } - ]) - # only support 3PIDless registration if no 3PIDs are required - if not require_email and not require_msisdn: - flows.extend([ - { - "type": LoginType.PASSWORD - } - ]) - return (200, {"flows": flows}) - - @defer.inlineCallbacks - def on_POST(self, request): - register_json = parse_json_object_from_request(request) - - session = (register_json["session"] - if "session" in register_json else None) - login_type = None - assert_params_in_dict(register_json, ["type"]) - - try: - login_type = register_json["type"] - - is_application_server = login_type == LoginType.APPLICATION_SERVICE - is_using_shared_secret = login_type == LoginType.SHARED_SECRET - - can_register = ( - self.enable_registration - or is_application_server - or is_using_shared_secret - ) - if not can_register: - raise SynapseError(403, "Registration has been disabled") - - stages = { - LoginType.RECAPTCHA: self._do_recaptcha, - LoginType.PASSWORD: self._do_password, - LoginType.EMAIL_IDENTITY: self._do_email_identity, - LoginType.APPLICATION_SERVICE: self._do_app_service, - LoginType.SHARED_SECRET: self._do_shared_secret, - } - - session_info = self._get_session_info(request, session) - logger.debug("%s : session info %s request info %s", - login_type, session_info, register_json) - response = yield stages[login_type]( - request, - register_json, - session_info - ) - - if "access_token" not in response: - # isn't a final response - response["session"] = session_info["id"] - - defer.returnValue((200, response)) - except KeyError as e: - logger.exception(e) - raise SynapseError(400, "Missing JSON keys for login type %s." % ( - login_type, - )) - - def on_OPTIONS(self, request): - return (200, {}) - - def _get_session_info(self, request, session_id): - if not session_id: - # create a new session - while session_id is None or session_id in self.sessions: - session_id = stringutils.random_string(24) - self.sessions[session_id] = { - "id": session_id, - LoginType.EMAIL_IDENTITY: False, - LoginType.RECAPTCHA: False - } - - return self.sessions[session_id] - - def _save_session(self, session): - # TODO: Persistent storage - logger.debug("Saving session %s", session) - self.sessions[session["id"]] = session - - def _remove_session(self, session): - logger.debug("Removing session %s", session) - self.sessions.pop(session["id"]) - - @defer.inlineCallbacks - def _do_recaptcha(self, request, register_json, session): - if not self.hs.config.enable_registration_captcha: - raise SynapseError(400, "Captcha not required.") - - yield self._check_recaptcha(request, register_json, session) - - session[LoginType.RECAPTCHA] = True # mark captcha as done - self._save_session(session) - defer.returnValue({ - "next": [LoginType.PASSWORD, LoginType.EMAIL_IDENTITY] - }) - - @defer.inlineCallbacks - def _check_recaptcha(self, request, register_json, session): - if ("captcha_bypass_hmac" in register_json and - self.hs.config.captcha_bypass_secret): - if "user" not in register_json: - raise SynapseError(400, "Captcha bypass needs 'user'") - - want = hmac.new( - key=self.hs.config.captcha_bypass_secret, - msg=register_json["user"], - digestmod=sha1, - ).hexdigest() - - # str() because otherwise hmac complains that 'unicode' does not - # have the buffer interface - got = str(register_json["captcha_bypass_hmac"]) - - if compare_digest(want, got): - session["user"] = register_json["user"] - defer.returnValue(None) - else: - raise SynapseError( - 400, "Captcha bypass HMAC incorrect", - errcode=Codes.CAPTCHA_NEEDED - ) - - challenge = None - user_response = None - try: - challenge = register_json["challenge"] - user_response = register_json["response"] - except KeyError: - raise SynapseError(400, "Captcha response is required", - errcode=Codes.CAPTCHA_NEEDED) - - ip_addr = self.hs.get_ip_from_request(request) - - handler = self.handlers.registration_handler - yield handler.check_recaptcha( - ip_addr, - self.hs.config.recaptcha_private_key, - challenge, - user_response - ) - - @defer.inlineCallbacks - def _do_email_identity(self, request, register_json, session): - if (self.hs.config.enable_registration_captcha and - not session[LoginType.RECAPTCHA]): - raise SynapseError(400, "Captcha is required.") - - threepidCreds = register_json['threepidCreds'] - handler = self.handlers.registration_handler - logger.debug("Registering email. threepidcreds: %s" % (threepidCreds)) - yield handler.register_email(threepidCreds) - session["threepidCreds"] = threepidCreds # store creds for next stage - session[LoginType.EMAIL_IDENTITY] = True # mark email as done - self._save_session(session) - defer.returnValue({ - "next": LoginType.PASSWORD - }) - - @defer.inlineCallbacks - def _do_password(self, request, register_json, session): - if (self.hs.config.enable_registration_captcha and - not session[LoginType.RECAPTCHA]): - # captcha should've been done by this stage! - raise SynapseError(400, "Captcha is required.") - - if ("user" in session and "user" in register_json and - session["user"] != register_json["user"]): - raise SynapseError( - 400, "Cannot change user ID during registration" - ) - - password = register_json["password"].encode("utf-8") - desired_user_id = ( - register_json["user"].encode("utf-8") - if "user" in register_json else None - ) - - handler = self.handlers.registration_handler - (user_id, token) = yield handler.register( - localpart=desired_user_id, - password=password - ) - - if session[LoginType.EMAIL_IDENTITY]: - logger.debug("Binding emails %s to %s" % ( - session["threepidCreds"], user_id) - ) - yield handler.bind_emails(user_id, session["threepidCreds"]) - - result = { - "user_id": user_id, - "access_token": token, - "home_server": self.hs.hostname, - } - self._remove_session(session) - defer.returnValue(result) - - @defer.inlineCallbacks - def _do_app_service(self, request, register_json, session): - as_token = self.auth.get_access_token_from_request(request) - - assert_params_in_dict(register_json, ["user"]) - user_localpart = register_json["user"].encode("utf-8") - - handler = self.handlers.registration_handler - user_id = yield handler.appservice_register( - user_localpart, as_token - ) - token = yield self.auth_handler.issue_access_token(user_id) - self._remove_session(session) - defer.returnValue({ - "user_id": user_id, - "access_token": token, - "home_server": self.hs.hostname, - }) - - @defer.inlineCallbacks - def _do_shared_secret(self, request, register_json, session): - assert_params_in_dict(register_json, ["mac", "user", "password"]) - - if not self.hs.config.registration_shared_secret: - raise SynapseError(400, "Shared secret registration is not enabled") - - user = register_json["user"].encode("utf-8") - password = register_json["password"].encode("utf-8") - admin = register_json.get("admin", None) - - # Its important to check as we use null bytes as HMAC field separators - if b"\x00" in user: - raise SynapseError(400, "Invalid user") - if b"\x00" in password: - raise SynapseError(400, "Invalid password") - - # str() because otherwise hmac complains that 'unicode' does not - # have the buffer interface - got_mac = str(register_json["mac"]) - - want_mac = hmac.new( - key=self.hs.config.registration_shared_secret.encode(), - digestmod=sha1, - ) - want_mac.update(user) - 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 compare_digest(want_mac, got_mac): - handler = self.handlers.registration_handler - user_id, token = yield handler.register( - localpart=user.lower(), - password=password, - admin=bool(admin), - ) - self._remove_session(session) - defer.returnValue({ - "user_id": user_id, - "access_token": token, - "home_server": self.hs.hostname, - }) - else: - raise SynapseError( - 403, "HMAC incorrect", - ) - - -class CreateUserRestServlet(ClientV1RestServlet): - """Handles user creation via a server-to-server interface - """ - - PATTERNS = client_path_patterns("/createUser$", releases=()) - - def __init__(self, hs): - super(CreateUserRestServlet, self).__init__(hs) - self.store = hs.get_datastore() - self.handlers = hs.get_handlers() - - @defer.inlineCallbacks - def on_POST(self, request): - user_json = parse_json_object_from_request(request) - - access_token = self.auth.get_access_token_from_request(request) - app_service = self.store.get_app_service_by_token( - access_token - ) - if not app_service: - raise SynapseError(403, "Invalid application service token.") - - requester = create_requester(app_service.sender) - - logger.debug("creating user: %s", user_json) - response = yield self._do_create(requester, user_json) - - defer.returnValue((200, response)) - - def on_OPTIONS(self, request): - return 403, {} - - @defer.inlineCallbacks - def _do_create(self, requester, user_json): - assert_params_in_dict(user_json, ["localpart", "displayname"]) - - localpart = user_json["localpart"].encode("utf-8") - displayname = user_json["displayname"].encode("utf-8") - password_hash = user_json["password_hash"].encode("utf-8") \ - if user_json.get("password_hash") else None - - handler = self.handlers.registration_handler - user_id, token = yield handler.get_or_create_user( - requester=requester, - localpart=localpart, - displayname=displayname, - password_hash=password_hash - ) - - defer.returnValue({ - "user_id": user_id, - "access_token": token, - "home_server": self.hs.hostname, - }) - - -def register_servlets(hs, http_server): - RegisterRestServlet(hs).register(http_server) - CreateUserRestServlet(hs).register(http_server) diff --git a/synapse/rest/client/v1/room.py b/synapse/rest/client/v1/room.py index 3d62447854..b7bd878c90 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, @@ -525,7 +523,7 @@ class RoomEventContextServlet(ClientV1RestServlet): def __init__(self, hs): super(RoomEventContextServlet, self).__init__(hs) self.clock = hs.get_clock() - self.handlers = hs.get_handlers() + self.room_context_handler = hs.get_room_context_handler() @defer.inlineCallbacks def on_GET(self, request, room_id, event_id): @@ -533,7 +531,7 @@ class RoomEventContextServlet(ClientV1RestServlet): limit = parse_integer(request, "limit", default=10) - results = yield self.handlers.room_context_handler.get_event_context( + results = yield self.room_context_handler.get_event_context( requester.user, room_id, event_id, @@ -832,10 +830,13 @@ def register_servlets(hs, http_server): RoomSendEventRestServlet(hs).register(http_server) PublicRoomListRestServlet(hs).register(http_server) RoomStateRestServlet(hs).register(http_server) - RoomInitialSyncRestServlet(hs).register(http_server) RoomRedactEventRestServlet(hs).register(http_server) RoomTypingRestServlet(hs).register(http_server) SearchRestServlet(hs).register(http_server) JoinedRoomsRestServlet(hs).register(http_server) RoomEventServlet(hs).register(http_server) RoomEventContextServlet(hs).register(http_server) + + +def register_deprecated_servlets(hs, http_server): + RoomInitialSyncRestServlet(hs).register(http_server) |