diff options
Diffstat (limited to 'synapse/api')
| -rw-r--r-- | synapse/api/auth.py | 101 | ||||
| -rw-r--r-- | synapse/api/constants.py | 25 | ||||
| -rw-r--r-- | synapse/api/errors.py | 65 | ||||
| -rw-r--r-- | synapse/api/filtering.py | 8 | ||||
| -rw-r--r-- | synapse/api/ratelimiting.py | 2 | ||||
| -rw-r--r-- | synapse/api/urls.py | 3 |
6 files changed, 181 insertions, 23 deletions
diff --git a/synapse/api/auth.py b/synapse/api/auth.py index 7d76dbd661..4811300c16 100644 --- a/synapse/api/auth.py +++ b/synapse/api/auth.py @@ -25,7 +25,8 @@ from twisted.internet import defer import synapse.types from synapse import event_auth from synapse.api.constants import EventTypes, JoinRules, Membership -from synapse.api.errors import AuthError, Codes +from synapse.api.errors import AuthError, Codes, ResourceLimitError +from synapse.config.server import is_threepid_reserved from synapse.types import UserID from synapse.util.caches import CACHE_SIZE_FACTOR, register_cache from synapse.util.caches.lrucache import LruCache @@ -187,17 +188,33 @@ class Auth(object): """ # Can optionally look elsewhere in the request (e.g. headers) try: + ip_addr = self.hs.get_ip_from_request(request) + user_agent = request.requestHeaders.getRawHeaders( + b"User-Agent", + default=[b""] + )[0].decode('ascii', 'surrogateescape') + + access_token = self.get_access_token_from_request( + request, self.TOKEN_NOT_FOUND_HTTP_STATUS + ) + user_id, app_service = yield self._get_appservice_user_id(request) if user_id: request.authenticated_entity = user_id + + if ip_addr and self.hs.config.track_appservice_user_ips: + yield self.store.insert_client_ip( + user_id=user_id, + access_token=access_token, + ip=ip_addr, + user_agent=user_agent, + device_id="dummy-device", # stubbed + ) + defer.returnValue( synapse.types.create_requester(user_id, app_service=app_service) ) - access_token = self.get_access_token_from_request( - request, self.TOKEN_NOT_FOUND_HTTP_STATUS - ) - user_info = yield self.get_user_by_access_token(access_token, rights) user = user_info["user"] token_id = user_info["token_id"] @@ -207,13 +224,8 @@ class Auth(object): # stubbed out. device_id = user_info.get("device_id") - ip_addr = self.hs.get_ip_from_request(request) - user_agent = request.requestHeaders.getRawHeaders( - b"User-Agent", - default=[b""] - )[0] if user and access_token and ip_addr: - self.store.insert_client_ip( + yield self.store.insert_client_ip( user_id=user.to_string(), access_token=access_token, ip=ip_addr, @@ -671,7 +683,7 @@ class Auth(object): Returns: bool: False if no access_token was given, True otherwise. """ - query_params = request.args.get("access_token") + query_params = request.args.get(b"access_token") auth_headers = request.requestHeaders.getRawHeaders(b"Authorization") return bool(query_params) or bool(auth_headers) @@ -687,7 +699,7 @@ class Auth(object): 401 since some of the old clients depended on auth errors returning 403. Returns: - str: The access_token + unicode: The access_token Raises: AuthError: If there isn't an access_token in the request. """ @@ -709,9 +721,9 @@ class Auth(object): "Too many Authorization headers.", errcode=Codes.MISSING_TOKEN, ) - parts = auth_headers[0].split(" ") - if parts[0] == "Bearer" and len(parts) == 2: - return parts[1] + parts = auth_headers[0].split(b" ") + if parts[0] == b"Bearer" and len(parts) == 2: + return parts[1].decode('ascii') else: raise AuthError( token_not_found_http_status, @@ -727,7 +739,7 @@ class Auth(object): errcode=Codes.MISSING_TOKEN ) - return query_params[0] + return query_params[0].decode('ascii') @defer.inlineCallbacks def check_in_room_or_world_readable(self, room_id, user_id): @@ -762,3 +774,58 @@ class Auth(object): raise AuthError( 403, "Guest access not allowed", errcode=Codes.GUEST_ACCESS_FORBIDDEN ) + + @defer.inlineCallbacks + def check_auth_blocking(self, user_id=None, threepid=None): + """Checks if the user should be rejected for some external reason, + such as monthly active user limiting or global disable flag + + Args: + user_id(str|None): If present, checks for presence against existing + MAU cohort + + threepid(dict|None): If present, checks for presence against configured + reserved threepid. Used in cases where the user is trying register + with a MAU blocked server, normally they would be rejected but their + threepid is on the reserved list. user_id and + threepid should never be set at the same time. + """ + + # Never fail an auth check for the server notices users + # This can be a problem where event creation is prohibited due to blocking + if user_id == self.hs.config.server_notices_mxid: + return + + if self.hs.config.hs_disabled: + raise ResourceLimitError( + 403, self.hs.config.hs_disabled_message, + errcode=Codes.RESOURCE_LIMIT_EXCEEDED, + admin_contact=self.hs.config.admin_contact, + limit_type=self.hs.config.hs_disabled_limit_type + ) + if self.hs.config.limit_usage_by_mau is True: + assert not (user_id and threepid) + + # If the user is already part of the MAU cohort or a trial user + if user_id: + timestamp = yield self.store.user_last_seen_monthly_active(user_id) + if timestamp: + return + + is_trial = yield self.store.is_trial_user(user_id) + if is_trial: + return + elif threepid: + # If the user does not exist yet, but is signing up with a + # reserved threepid then pass auth check + if is_threepid_reserved(self.hs.config, threepid): + return + # Else if there is no room in the MAU bucket, bail + current_mau = yield self.store.get_monthly_active_count() + if current_mau >= self.hs.config.max_mau_value: + raise ResourceLimitError( + 403, "Monthly Active User Limit Exceeded", + admin_contact=self.hs.config.admin_contact, + errcode=Codes.RESOURCE_LIMIT_EXCEEDED, + limit_type="monthly_active_user" + ) diff --git a/synapse/api/constants.py b/synapse/api/constants.py index 4df930c8d1..f20e0fcf0b 100644 --- a/synapse/api/constants.py +++ b/synapse/api/constants.py @@ -1,6 +1,7 @@ # -*- coding: utf-8 -*- # Copyright 2014-2016 OpenMarket Ltd # Copyright 2017 Vector Creations Ltd +# 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. @@ -50,6 +51,7 @@ class LoginType(object): EMAIL_IDENTITY = u"m.login.email.identity" MSISDN = u"m.login.msisdn" RECAPTCHA = u"m.login.recaptcha" + TERMS = u"m.login.terms" DUMMY = u"m.login.dummy" # Only for C/S API v1 @@ -60,6 +62,7 @@ class LoginType(object): class EventTypes(object): Member = "m.room.member" Create = "m.room.create" + Tombstone = "m.room.tombstone" JoinRules = "m.room.join_rules" PowerLevels = "m.room.power_levels" Aliases = "m.room.aliases" @@ -77,6 +80,7 @@ class EventTypes(object): Name = "m.room.name" ServerACL = "m.room.server_acl" + Pinned = "m.room.pinned_events" class RejectedReason(object): @@ -94,3 +98,24 @@ class RoomCreationPreset(object): class ThirdPartyEntityKind(object): USER = "user" LOCATION = "location" + + +class RoomVersions(object): + V1 = "1" + VDH_TEST = "vdh-test-version" + STATE_V2_TEST = "state-v2-test" + + +# the version we will give rooms which are created on this server +DEFAULT_ROOM_VERSION = RoomVersions.V1 + +# vdh-test-version is a placeholder to get room versioning support working and tested +# until we have a working v2. +KNOWN_ROOM_VERSIONS = { + RoomVersions.V1, + RoomVersions.VDH_TEST, + RoomVersions.STATE_V2_TEST, +} + +ServerNoticeMsgType = "m.server_notice" +ServerNoticeLimitReached = "m.server_notice.usage_limit_reached" diff --git a/synapse/api/errors.py b/synapse/api/errors.py index b41d595059..48b903374d 100644 --- a/synapse/api/errors.py +++ b/synapse/api/errors.py @@ -1,5 +1,6 @@ # -*- coding: utf-8 -*- # Copyright 2014-2016 OpenMarket Ltd +# 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. @@ -55,7 +56,10 @@ class Codes(object): SERVER_NOT_TRUSTED = "M_SERVER_NOT_TRUSTED" CONSENT_NOT_GIVEN = "M_CONSENT_NOT_GIVEN" CANNOT_LEAVE_SERVER_NOTICE_ROOM = "M_CANNOT_LEAVE_SERVER_NOTICE_ROOM" - MAU_LIMIT_EXCEEDED = "M_MAU_LIMIT_EXCEEDED" + RESOURCE_LIMIT_EXCEEDED = "M_RESOURCE_LIMIT_EXCEEDED" + UNSUPPORTED_ROOM_VERSION = "M_UNSUPPORTED_ROOM_VERSION" + INCOMPATIBLE_ROOM_VERSION = "M_INCOMPATIBLE_ROOM_VERSION" + WRONG_ROOM_KEYS_VERSION = "M_WRONG_ROOM_KEYS_VERSION" class CodeMessageException(RuntimeError): @@ -228,6 +232,30 @@ class AuthError(SynapseError): super(AuthError, self).__init__(*args, **kwargs) +class ResourceLimitError(SynapseError): + """ + Any error raised when there is a problem with resource usage. + For instance, the monthly active user limit for the server has been exceeded + """ + def __init__( + self, code, msg, + errcode=Codes.RESOURCE_LIMIT_EXCEEDED, + admin_contact=None, + limit_type=None, + ): + self.admin_contact = admin_contact + self.limit_type = limit_type + super(ResourceLimitError, self).__init__(code, msg, errcode=errcode) + + def error_dict(self): + return cs_error( + self.msg, + self.errcode, + admin_contact=self.admin_contact, + limit_type=self.limit_type + ) + + class EventSizeError(SynapseError): """An error raised when an event is too big.""" @@ -285,6 +313,41 @@ class LimitExceededError(SynapseError): ) +class RoomKeysVersionError(SynapseError): + """A client has tried to upload to a non-current version of the room_keys store + """ + def __init__(self, current_version): + """ + Args: + current_version (str): the current version of the store they should have used + """ + super(RoomKeysVersionError, self).__init__( + 403, "Wrong room_keys version", Codes.WRONG_ROOM_KEYS_VERSION + ) + self.current_version = current_version + + +class IncompatibleRoomVersionError(SynapseError): + """A server is trying to join a room whose version it does not support.""" + + def __init__(self, room_version): + super(IncompatibleRoomVersionError, self).__init__( + code=400, + msg="Your homeserver does not support the features required to " + "join this room", + errcode=Codes.INCOMPATIBLE_ROOM_VERSION, + ) + + self._room_version = room_version + + def error_dict(self): + return cs_error( + self.msg, + self.errcode, + room_version=self._room_version, + ) + + def cs_error(msg, code=Codes.UNKNOWN, **kwargs): """ Utility method for constructing an error response for client-server interactions. diff --git a/synapse/api/filtering.py b/synapse/api/filtering.py index 186831e118..677c0bdd4c 100644 --- a/synapse/api/filtering.py +++ b/synapse/api/filtering.py @@ -172,7 +172,10 @@ USER_FILTER_SCHEMA = { # events a lot easier as we can then use a negative lookbehind # assertion to split '\.' If we allowed \\ then it would # incorrectly split '\\.' See synapse.events.utils.serialize_event - "pattern": "^((?!\\\).)*$" + # + # Note that because this is a regular expression, we have to escape + # each backslash in the pattern. + "pattern": r"^((?!\\\\).)*$" } } }, @@ -226,7 +229,7 @@ class Filtering(object): jsonschema.validate(user_filter_json, USER_FILTER_SCHEMA, format_checker=FormatChecker()) except jsonschema.ValidationError as e: - raise SynapseError(400, e.message) + raise SynapseError(400, str(e)) class FilterCollection(object): @@ -251,6 +254,7 @@ class FilterCollection(object): "include_leave", False ) self.event_fields = filter_json.get("event_fields", []) + self.event_format = filter_json.get("event_format", "client") def __repr__(self): return "<FilterCollection %s>" % (json.dumps(self._filter_json),) diff --git a/synapse/api/ratelimiting.py b/synapse/api/ratelimiting.py index 06cc8d90b8..3bb5b3da37 100644 --- a/synapse/api/ratelimiting.py +++ b/synapse/api/ratelimiting.py @@ -72,7 +72,7 @@ class Ratelimiter(object): return allowed, time_allowed def prune_message_counts(self, time_now_s): - for user_id in self.message_counts.keys(): + for user_id in list(self.message_counts.keys()): message_count, time_start, msg_rate_hz = ( self.message_counts[user_id] ) diff --git a/synapse/api/urls.py b/synapse/api/urls.py index 71347912f1..f78695b657 100644 --- a/synapse/api/urls.py +++ b/synapse/api/urls.py @@ -28,7 +28,6 @@ FEDERATION_PREFIX = "/_matrix/federation/v1" STATIC_PREFIX = "/_matrix/static" WEB_CLIENT_PREFIX = "/_matrix/client" CONTENT_REPO_PREFIX = "/_matrix/content" -SERVER_KEY_PREFIX = "/_matrix/key/v1" SERVER_KEY_V2_PREFIX = "/_matrix/key/v2" MEDIA_PREFIX = "/_matrix/media/r0" LEGACY_MEDIA_PREFIX = "/_matrix/media/v1" @@ -64,7 +63,7 @@ class ConsentURIBuilder(object): """ mac = hmac.new( key=self._hmac_secret, - msg=user_id, + msg=user_id.encode('ascii'), digestmod=sha256, ).hexdigest() consent_uri = "%s_matrix/consent?%s" % ( |