diff options
| -rw-r--r-- | docs/specification.rst | 33 | ||||
| -rw-r--r-- | synapse/api/auth.py | 42 | ||||
| -rw-r--r-- | synapse/handlers/__init__.py | 2 | ||||
| -rw-r--r-- | synapse/handlers/admin.py | 62 | ||||
| -rw-r--r-- | synapse/rest/__init__.py | 4 | ||||
| -rw-r--r-- | synapse/rest/admin.py | 47 | ||||
| -rw-r--r-- | synapse/rest/register.py | 8 | ||||
| -rw-r--r-- | synapse/server.py | 12 | ||||
| -rw-r--r-- | synapse/storage/__init__.py | 24 | ||||
| -rw-r--r-- | synapse/storage/registration.py | 35 | ||||
| -rw-r--r-- | synapse/storage/schema/delta/v5.sql | 16 | ||||
| -rw-r--r-- | synapse/storage/schema/users.sql | 14 | ||||
| -rw-r--r-- | tests/rest/test_presence.py | 18 | ||||
| -rw-r--r-- | tests/rest/test_profile.py | 4 | ||||
| -rw-r--r-- | tests/rest/test_rooms.py | 41 | ||||
| -rw-r--r-- | tests/storage/test_registration.py | 4 | ||||
| -rw-r--r-- | tests/utils.py | 9 |
17 files changed, 335 insertions, 40 deletions
diff --git a/docs/specification.rst b/docs/specification.rst index e9e9296073..23b6bed764 100644 --- a/docs/specification.rst +++ b/docs/specification.rst @@ -1127,6 +1127,23 @@ There are several APIs provided to ``GET`` events for a room: Example: TODO +Redactions +---------- +Since events are extensible it is possible for malicious users and/or servers to add +keys that are, for example offensive or illegal. Since some events cannot be simply +deleted, e.g. membership events, we instead 'redact' events. This involves removing +all keys from an event that are not required by the protocol. This stripped down +event is thereafter returned anytime a client or remote server requests it. + +Events that have been redacted include a ``redacted_because`` key whose value is the +event that caused it to be redacted, which may include a reason. + +Redacting an event cannot be undone, allowing server owners to delete the offending +content from the databases. + +Currently, only room admins can redact events by sending a ``m.room.redacted`` event, +but server admins also need to be able to redact events by a similar mechanism. + Room Events =========== @@ -1321,6 +1338,22 @@ prefixed with ``m.`` end-user). The ``target_event_id`` should reference the ``m.room.message`` event being acknowledged. +``m.room.redaction`` + Summary: + Indicates a previous event has been redacted. + Type: + Non-state event + JSON format: + ``{ "reason": "string" }`` + Description: + Events can be redacted by either room or server admins. Redacting an event means that + all keys not required by the protocol are stripped off, allowing admins to remove + offensive or illegal content that may have been attached to any event. This cannot be + undone, allowing server owners to physically delete the offending data. + There is also a concept of a moderator hiding a non-state event, which can be undone, + but cannot be applied to state events. + The event that has been redacted is specified in the ``redacts`` event level key. + m.room.message msgtypes ----------------------- Each ``m.room.message`` MUST have a ``msgtype`` key which identifies the type diff --git a/synapse/api/auth.py b/synapse/api/auth.py index 9bfd25c86e..e1b1823cd7 100644 --- a/synapse/api/auth.py +++ b/synapse/api/auth.py @@ -206,6 +206,7 @@ class Auth(object): defer.returnValue(True) + @defer.inlineCallbacks def get_user_by_req(self, request): """ Get a registered user's ID. @@ -218,7 +219,25 @@ class Auth(object): """ # Can optionally look elsewhere in the request (e.g. headers) try: - return self.get_user_by_token(request.args["access_token"][0]) + access_token = request.args["access_token"][0] + user_info = yield self.get_user_by_token(access_token) + user = user_info["user"] + + ip_addr = self.hs.get_ip_from_request(request) + user_agent = request.requestHeaders.getRawHeaders( + "User-Agent", + default=[""] + )[0] + if user and access_token and ip_addr: + self.store.insert_client_ip( + user=user, + access_token=access_token, + device_id=user_info["device_id"], + ip=ip_addr, + user_agent=user_agent + ) + + defer.returnValue(user) except KeyError: raise AuthError(403, "Missing access token.") @@ -227,21 +246,32 @@ class Auth(object): """ Get a registered user's ID. Args: - token (str)- The access token to get the user by. + token (str): The access token to get the user by. Returns: - UserID : User ID object of the user who has that access token. + dict : dict that includes the user, device_id, and whether the + user is a server admin. Raises: AuthError if no user by that token exists or the token is invalid. """ try: - user_id = yield self.store.get_user_by_token(token=token) - if not user_id: + ret = yield self.store.get_user_by_token(token=token) + if not ret: raise StoreError() - defer.returnValue(self.hs.parse_userid(user_id)) + + user_info = { + "admin": bool(ret.get("admin", False)), + "device_id": ret.get("device_id"), + "user": self.hs.parse_userid(ret.get("name")), + } + + defer.returnValue(user_info) except StoreError: raise AuthError(403, "Unrecognised access token.", errcode=Codes.UNKNOWN_TOKEN) + def is_server_admin(self, user): + return self.store.is_server_admin(user) + @defer.inlineCallbacks @log_function def _can_send_event(self, event): diff --git a/synapse/handlers/__init__.py b/synapse/handlers/__init__.py index 5308e2c8e1..d5df3c630b 100644 --- a/synapse/handlers/__init__.py +++ b/synapse/handlers/__init__.py @@ -25,6 +25,7 @@ from .profile import ProfileHandler from .presence import PresenceHandler from .directory import DirectoryHandler from .typing import TypingNotificationHandler +from .admin import AdminHandler class Handlers(object): @@ -49,3 +50,4 @@ class Handlers(object): self.login_handler = LoginHandler(hs) self.directory_handler = DirectoryHandler(hs) self.typing_notification_handler = TypingNotificationHandler(hs) + self.admin_handler = AdminHandler(hs) diff --git a/synapse/handlers/admin.py b/synapse/handlers/admin.py new file mode 100644 index 0000000000..687b343a1d --- /dev/null +++ b/synapse/handlers/admin.py @@ -0,0 +1,62 @@ +# -*- coding: utf-8 -*- +# Copyright 2014 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. + +from twisted.internet import defer + +from ._base import BaseHandler + +import logging + + +logger = logging.getLogger(__name__) + + +class AdminHandler(BaseHandler): + + def __init__(self, hs): + super(AdminHandler, self).__init__(hs) + + @defer.inlineCallbacks + def get_whois(self, user): + res = yield self.store.get_user_ip_and_agents(user) + + d = {} + for r in res: + device = d.setdefault(r["device_id"], {}) + session = device.setdefault(r["access_token"], []) + session.append({ + "ip": r["ip"], + "user_agent": r["user_agent"], + "last_seen": r["last_seen"], + }) + + ret = { + "user_id": user.to_string(), + "devices": [ + { + "device_id": k, + "sessions": [ + { + # "access_token": x, TODO (erikj) + "connections": y, + } + for x, y in v.items() + ] + } + for k, v in d.items() + ], + } + + defer.returnValue(ret) diff --git a/synapse/rest/__init__.py b/synapse/rest/__init__.py index 3b9aa59733..e391e5678d 100644 --- a/synapse/rest/__init__.py +++ b/synapse/rest/__init__.py @@ -15,7 +15,8 @@ from . import ( - room, events, register, login, profile, presence, initial_sync, directory, voip + room, events, register, login, profile, presence, initial_sync, directory, + voip, admin, ) @@ -43,3 +44,4 @@ class RestServletFactory(object): initial_sync.register_servlets(hs, client_resource) directory.register_servlets(hs, client_resource) voip.register_servlets(hs, client_resource) + admin.register_servlets(hs, client_resource) diff --git a/synapse/rest/admin.py b/synapse/rest/admin.py new file mode 100644 index 0000000000..ed9b484623 --- /dev/null +++ b/synapse/rest/admin.py @@ -0,0 +1,47 @@ +# -*- coding: utf-8 -*- +# Copyright 2014 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. + +from twisted.internet import defer + +from synapse.api.errors import AuthError, SynapseError +from base import RestServlet, client_path_pattern + +import logging + +logger = logging.getLogger(__name__) + + +class WhoisRestServlet(RestServlet): + PATTERN = client_path_pattern("/admin/whois/(?P<user_id>[^/]*)") + + @defer.inlineCallbacks + def on_GET(self, request, user_id): + target_user = self.hs.parse_userid(user_id) + auth_user = yield self.auth.get_user_by_req(request) + is_admin = yield self.auth.is_server_admin(auth_user) + + if not is_admin and target_user != auth_user: + raise AuthError(403, "You are not a server admin") + + if not target_user.is_mine: + raise SynapseError(400, "Can only whois a local user") + + ret = yield self.handlers.admin_handler.get_whois(target_user) + + defer.returnValue((200, ret)) + + +def register_servlets(hs, http_server): + WhoisRestServlet(hs).register(http_server) diff --git a/synapse/rest/register.py b/synapse/rest/register.py index 4935e323d9..804117ee09 100644 --- a/synapse/rest/register.py +++ b/synapse/rest/register.py @@ -195,13 +195,7 @@ class RegisterRestServlet(RestServlet): raise SynapseError(400, "Captcha response is required", errcode=Codes.CAPTCHA_NEEDED) - # May be an X-Forwarding-For header depending on config - ip_addr = request.getClientIP() - if self.hs.config.captcha_ip_origin_is_x_forwarded: - # use the header - if request.requestHeaders.hasHeader("X-Forwarded-For"): - ip_addr = request.requestHeaders.getRawHeaders( - "X-Forwarded-For")[0] + ip_addr = self.hs.get_ip_from_request(request) handler = self.handlers.registration_handler yield handler.check_recaptcha( diff --git a/synapse/server.py b/synapse/server.py index cdea49e6ab..e5b048ede0 100644 --- a/synapse/server.py +++ b/synapse/server.py @@ -143,6 +143,18 @@ class BaseHomeServer(object): def serialize_event(self, e): return serialize_event(self, e) + def get_ip_from_request(self, request): + # May be an X-Forwarding-For header depending on config + ip_addr = request.getClientIP() + if self.config.captcha_ip_origin_is_x_forwarded: + # use the header + if request.requestHeaders.hasHeader("X-Forwarded-For"): + ip_addr = request.requestHeaders.getRawHeaders( + "X-Forwarded-For" + )[0] + + return ip_addr + # Build magic accessors for every dependency for depname in BaseHomeServer.DEPENDENCIES: BaseHomeServer._make_dependency_method(depname) diff --git a/synapse/storage/__init__.py b/synapse/storage/__init__.py index 15919eb580..1ebbeab2e7 100644 --- a/synapse/storage/__init__.py +++ b/synapse/storage/__init__.py @@ -63,7 +63,7 @@ SCHEMAS = [ # Remember to update this number every time an incompatible change is made to # database schema files, so the users will be informed on server restarts. -SCHEMA_VERSION = 4 +SCHEMA_VERSION = 5 class _RollbackButIsFineException(Exception): @@ -294,6 +294,28 @@ class DataStore(RoomMemberStore, RoomStore, defer.returnValue(self.min_token) + def insert_client_ip(self, user, access_token, device_id, ip, user_agent): + return self._simple_insert( + "user_ips", + { + "user": user.to_string(), + "access_token": access_token, + "device_id": device_id, + "ip": ip, + "user_agent": user_agent, + "last_seen": int(self._clock.time_msec()), + } + ) + + def get_user_ip_and_agents(self, user): + return self._simple_select_list( + table="user_ips", + keyvalues={"user": user.to_string()}, + retcols=[ + "device_id", "access_token", "ip", "user_agent", "last_seen" + ], + ) + def snapshot_room(self, room_id, user_id, state_type=None, state_key=None): """Snapshot the room for an update by a user Args: diff --git a/synapse/storage/registration.py b/synapse/storage/registration.py index db20b1daa0..719806f82b 100644 --- a/synapse/storage/registration.py +++ b/synapse/storage/registration.py @@ -88,27 +88,40 @@ class RegistrationStore(SQLBaseStore): query, user_id ) - @defer.inlineCallbacks def get_user_by_token(self, token): """Get a user from the given access token. Args: token (str): The access token of a user. Returns: - str: The user ID of the user. + dict: Including the name (user_id), device_id and whether they are + an admin. Raises: StoreError if no user was found. """ - user_id = yield self.runInteraction(self._query_for_auth, - token) - defer.returnValue(user_id) + return self.runInteraction( + self._query_for_auth, + token + ) + + def is_server_admin(self, user): + return self._simple_select_one_onecol( + table="users", + keyvalues={"name": user.to_string()}, + retcol="admin", + ) def _query_for_auth(self, txn, token): - txn.execute("SELECT users.name FROM access_tokens LEFT JOIN users" + - " ON users.id = access_tokens.user_id WHERE token = ?", - [token]) - row = txn.fetchone() - if row: - return row[0] + sql = ( + "SELECT users.name, users.admin, access_tokens.device_id " + "FROM users " + "INNER JOIN access_tokens on users.id = access_tokens.user_id " + "WHERE token = ?" + ) + + cursor = txn.execute(sql, (token,)) + rows = self.cursor_to_dict(cursor) + if rows: + return rows[0] raise StoreError(404, "Token not found.") diff --git a/synapse/storage/schema/delta/v5.sql b/synapse/storage/schema/delta/v5.sql new file mode 100644 index 0000000000..af9df11aa9 --- /dev/null +++ b/synapse/storage/schema/delta/v5.sql @@ -0,0 +1,16 @@ + +CREATE TABLE IF NOT EXISTS user_ips ( + user TEXT NOT NULL, + access_token TEXT NOT NULL, + device_id TEXT, + ip TEXT NOT NULL, + user_agent TEXT NOT NULL, + last_seen INTEGER NOT NULL, + CONSTRAINT user_ip UNIQUE (user, access_token, ip, user_agent) ON CONFLICT REPLACE +); + +CREATE INDEX IF NOT EXISTS user_ips_user ON user_ips(user); + +ALTER TABLE users ADD COLUMN admin BOOL DEFAULT 0 NOT NULL; + +PRAGMA user_version = 5; diff --git a/synapse/storage/schema/users.sql b/synapse/storage/schema/users.sql index 2519702971..8244f733bd 100644 --- a/synapse/storage/schema/users.sql +++ b/synapse/storage/schema/users.sql @@ -17,6 +17,7 @@ CREATE TABLE IF NOT EXISTS users( name TEXT, password_hash TEXT, creation_ts INTEGER, + admin BOOL DEFAULT 0 NOT NULL, UNIQUE(name) ON CONFLICT ROLLBACK ); @@ -29,3 +30,16 @@ CREATE TABLE IF NOT EXISTS access_tokens( FOREIGN KEY(user_id) REFERENCES users(id), UNIQUE(token) ON CONFLICT ROLLBACK ); + +CREATE TABLE IF NOT EXISTS user_ips ( + user TEXT NOT NULL, + access_token TEXT NOT NULL, + device_id TEXT, + ip TEXT NOT NULL, + user_agent TEXT NOT NULL, + last_seen INTEGER NOT NULL, + CONSTRAINT user_ip UNIQUE (user, access_token, ip, user_agent) ON CONFLICT REPLACE +); + +CREATE INDEX IF NOT EXISTS user_ips_user ON user_ips(user); + diff --git a/tests/rest/test_presence.py b/tests/rest/test_presence.py index ea3478ac5d..e2dc3dec81 100644 --- a/tests/rest/test_presence.py +++ b/tests/rest/test_presence.py @@ -51,10 +51,12 @@ class PresenceStateTestCase(unittest.TestCase): datastore=Mock(spec=[ "get_presence_state", "set_presence_state", + "insert_client_ip", ]), http_client=None, resource_for_client=self.mock_resource, resource_for_federation=self.mock_resource, + config=Mock(), ) hs.handlers = JustPresenceHandlers(hs) @@ -65,7 +67,11 @@ class PresenceStateTestCase(unittest.TestCase): self.datastore.get_presence_list = get_presence_list def _get_user_by_token(token=None): - return hs.parse_userid(myid) + return { + "user": hs.parse_userid(myid), + "admin": False, + "device_id": None, + } hs.get_auth().get_user_by_token = _get_user_by_token @@ -131,10 +137,12 @@ class PresenceListTestCase(unittest.TestCase): "set_presence_list_accepted", "del_presence_list", "get_presence_list", + "insert_client_ip", ]), http_client=None, resource_for_client=self.mock_resource, - resource_for_federation=self.mock_resource + resource_for_federation=self.mock_resource, + config=Mock(), ) hs.handlers = JustPresenceHandlers(hs) @@ -147,7 +155,11 @@ class PresenceListTestCase(unittest.TestCase): self.datastore.has_presence_state = has_presence_state def _get_user_by_token(token=None): - return hs.parse_userid(myid) + return { + "user": hs.parse_userid(myid), + "admin": False, + "device_id": None, + } room_member_handler = hs.handlers.room_member_handler = Mock( spec=[ diff --git a/tests/rest/test_profile.py b/tests/rest/test_profile.py index e6e51f6dd0..b0f48e7fd8 100644 --- a/tests/rest/test_profile.py +++ b/tests/rest/test_profile.py @@ -50,10 +50,10 @@ class ProfileTestCase(unittest.TestCase): datastore=None, ) - def _get_user_by_token(token=None): + def _get_user_by_req(request=None): return hs.parse_userid(myid) - hs.get_auth().get_user_by_token = _get_user_by_token + hs.get_auth().get_user_by_req = _get_user_by_req hs.get_handlers().profile_handler = self.mock_handler diff --git a/tests/rest/test_rooms.py b/tests/rest/test_rooms.py index 4ea5828d4f..1ce9b8a83d 100644 --- a/tests/rest/test_rooms.py +++ b/tests/rest/test_rooms.py @@ -69,7 +69,11 @@ class RoomPermissionsTestCase(RestTestCase): hs.get_handlers().federation_handler = Mock() def _get_user_by_token(token=None): - return hs.parse_userid(self.auth_user_id) + return { + "user": hs.parse_userid(self.auth_user_id), + "admin": False, + "device_id": None, + } hs.get_auth().get_user_by_token = _get_user_by_token self.auth_user_id = self.rmcreator_id @@ -425,7 +429,11 @@ class RoomsMemberListTestCase(RestTestCase): self.auth_user_id = self.user_id def _get_user_by_token(token=None): - return hs.parse_userid(self.auth_user_id) + return { + "user": hs.parse_userid(self.auth_user_id), + "admin": False, + "device_id": None, + } hs.get_auth().get_user_by_token = _get_user_by_token synapse.rest.room.register_servlets(hs, self.mock_resource) @@ -508,7 +516,11 @@ class RoomsCreateTestCase(RestTestCase): hs.get_handlers().federation_handler = Mock() def _get_user_by_token(token=None): - return hs.parse_userid(self.auth_user_id) + return { + "user": hs.parse_userid(self.auth_user_id), + "admin": False, + "device_id": None, + } hs.get_auth().get_user_by_token = _get_user_by_token synapse.rest.room.register_servlets(hs, self.mock_resource) @@ -605,7 +617,11 @@ class RoomTopicTestCase(RestTestCase): hs.get_handlers().federation_handler = Mock() def _get_user_by_token(token=None): - return hs.parse_userid(self.auth_user_id) + return { + "user": hs.parse_userid(self.auth_user_id), + "admin": False, + "device_id": None, + } hs.get_auth().get_user_by_token = _get_user_by_token synapse.rest.room.register_servlets(hs, self.mock_resource) @@ -715,7 +731,16 @@ class RoomMemberStateTestCase(RestTestCase): hs.get_handlers().federation_handler = Mock() def _get_user_by_token(token=None): - return hs.parse_userid(self.auth_user_id) + return { + "user": hs.parse_userid(self.auth_user_id), + "admin": False, + "device_id": None, + } + return { + "user": hs.parse_userid(self.auth_user_id), + "admin": False, + "device_id": None, + } hs.get_auth().get_user_by_token = _get_user_by_token synapse.rest.room.register_servlets(hs, self.mock_resource) @@ -847,7 +872,11 @@ class RoomMessagesTestCase(RestTestCase): hs.get_handlers().federation_handler = Mock() def _get_user_by_token(token=None): - return hs.parse_userid(self.auth_user_id) + return { + "user": hs.parse_userid(self.auth_user_id), + "admin": False, + "device_id": None, + } hs.get_auth().get_user_by_token = _get_user_by_token synapse.rest.room.register_servlets(hs, self.mock_resource) diff --git a/tests/storage/test_registration.py b/tests/storage/test_registration.py index 91e221d53e..84bfde7568 100644 --- a/tests/storage/test_registration.py +++ b/tests/storage/test_registration.py @@ -53,7 +53,7 @@ class RegistrationStoreTestCase(unittest.TestCase): ) self.assertEquals( - self.user_id, + {"admin": 0, "device_id": None, "name": self.user_id}, (yield self.store.get_user_by_token(self.tokens[0])) ) @@ -63,7 +63,7 @@ class RegistrationStoreTestCase(unittest.TestCase): yield self.store.add_access_token_to_user(self.user_id, self.tokens[1]) self.assertEquals( - self.user_id, + {"admin": 0, "device_id": None, "name": self.user_id}, (yield self.store.get_user_by_token(self.tokens[1])) ) diff --git a/tests/utils.py b/tests/utils.py index bb8e9964dd..e7c4bc4cad 100644 --- a/tests/utils.py +++ b/tests/utils.py @@ -167,7 +167,11 @@ class MemoryDataStore(object): def get_user_by_token(self, token): try: - return self.tokens_to_users[token] + return { + "name": self.tokens_to_users[token], + "admin": 0, + "device_id": None, + } except: raise StoreError(400, "User does not exist.") @@ -264,6 +268,9 @@ class MemoryDataStore(object): def get_ops_levels(self, room_id): return defer.succeed((5, 5, 5)) + def insert_client_ip(self, user, device_id, access_token, ip, user_agent): + return defer.succeed(None) + def _format_call(args, kwargs): return ", ".join( |