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Merge pull request #3654 from matrix-org/rav/room_versions 

Support for room versioning
This commit is contained in:
Richard van der Hoff 2018-08-08 17:10:53 +01:00 committed by GitHub
parent cc187debf3 3523f5432a
commit 8521ae13e3
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14 changed files with 244 additions and 22 deletions
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1
changelog.d/3654.feature Normal file
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@ -0,0 +1 @@
Basic support for room versioning

9
synapse/api/constants.py
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@ -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.
@ -94,3 +95,11 @@ class RoomCreationPreset(object):
class ThirdPartyEntityKind(object):
USER = "user"
LOCATION = "location"
# the version we will give rooms which are created on this server
DEFAULT_ROOM_VERSION = "1"
# vdh-test-version is a placeholder to get room versioning support working and tested
# until we have a working v2.
KNOWN_ROOM_VERSIONS = {"1", "vdh-test-version"}

24
synapse/api/errors.py
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@ -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.
@ -56,6 +57,8 @@ class Codes(object):
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"
UNSUPPORTED_ROOM_VERSION = "M_UNSUPPORTED_ROOM_VERSION"
INCOMPATIBLE_ROOM_VERSION = "M_INCOMPATIBLE_ROOM_VERSION"
class CodeMessageException(RuntimeError):
@ -285,6 +288,27 @@ class LimitExceededError(SynapseError):
)
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.

10
synapse/event_auth.py
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@ -20,7 +20,7 @@ from signedjson.key import decode_verify_key_bytes
from signedjson.sign import SignatureVerifyException, verify_signed_json
from unpaddedbase64 import decode_base64
from synapse.api.constants import EventTypes, JoinRules, Membership
from synapse.api.constants import KNOWN_ROOM_VERSIONS, EventTypes, JoinRules, Membership
from synapse.api.errors import AuthError, EventSizeError, SynapseError
from synapse.types import UserID, get_domain_from_id
@ -83,6 +83,14 @@ def check(event, auth_events, do_sig_check=True, do_size_check=True):
403,
"Creation event's room_id domain does not match sender's"
)
room_version = event.content.get("room_version", "1")
if room_version not in KNOWN_ROOM_VERSIONS:
raise AuthError(
403,
"room appears to have unsupported version %s" % (
room_version,
))
# FIXME
logger.debug("Allowing! %s", event)
return

38
synapse/federation/federation_client.py
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@ -25,7 +25,7 @@ from prometheus_client import Counter
from twisted.internet import defer
from synapse.api.constants import Membership
from synapse.api.constants import KNOWN_ROOM_VERSIONS, EventTypes, Membership
from synapse.api.errors import (
CodeMessageException,
FederationDeniedError,
@ -518,10 +518,10 @@ class FederationClient(FederationBase):
description, destination, exc_info=1,
)
raise RuntimeError("Failed to %s via any server", description)
raise RuntimeError("Failed to %s via any server" % (description, ))
def make_membership_event(self, destinations, room_id, user_id, membership,
content={},):
content, params):
"""
Creates an m.room.member event, with context, without participating in the room.
@ -537,8 +537,10 @@ class FederationClient(FederationBase):
user_id (str): The user whose membership is being evented.
membership (str): The "membership" property of the event. Must be
one of "join" or "leave".
content (object): Any additional data to put into the content field
content (dict): Any additional data to put into the content field
of the event.
params (dict[str, str|Iterable[str]]): Query parameters to include in the
request.
Return:
Deferred: resolves to a tuple of (origin (str), event (object))
where origin is the remote homeserver which generated the event.
@ -558,10 +560,12 @@ class FederationClient(FederationBase):
@defer.inlineCallbacks
def send_request(destination):
ret = yield self.transport_layer.make_membership_event(
destination, room_id, user_id, membership
destination, room_id, user_id, membership, params,
)
pdu_dict = ret["event"]
pdu_dict = ret.get("event", None)
if not isinstance(pdu_dict, dict):
raise InvalidResponseError("Bad 'event' field in response")
logger.debug("Got response to make_%s: %s", membership, pdu_dict)
@ -605,6 +609,26 @@ class FederationClient(FederationBase):
Fails with a ``RuntimeError`` if no servers were reachable.
"""
def check_authchain_validity(signed_auth_chain):
for e in signed_auth_chain:
if e.type == EventTypes.Create:
create_event = e
break
else:
raise InvalidResponseError(
"no %s in auth chain" % (EventTypes.Create,),
)
# the room version should be sane.
room_version = create_event.content.get("room_version", "1")
if room_version not in KNOWN_ROOM_VERSIONS:
# This shouldn't be possible, because the remote server should have
# rejected the join attempt during make_join.
raise InvalidResponseError(
"room appears to have unsupported version %s" % (
room_version,
))
@defer.inlineCallbacks
def send_request(destination):
time_now = self._clock.time_msec()
@ -661,7 +685,7 @@ class FederationClient(FederationBase):
for s in signed_state:
s.internal_metadata = copy.deepcopy(s.internal_metadata)
auth_chain.sort(key=lambda e: e.depth)
check_authchain_validity(signed_auth)
defer.returnValue({
"state": signed_state,

21
synapse/federation/federation_server.py
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@ -27,7 +27,13 @@ from twisted.internet.abstract import isIPAddress
from twisted.python import failure
from synapse.api.constants import EventTypes
from synapse.api.errors import AuthError, FederationError, NotFoundError, SynapseError
from synapse.api.errors import (
AuthError,
FederationError,
IncompatibleRoomVersionError,
NotFoundError,
SynapseError,
)
from synapse.crypto.event_signing import compute_event_signature
from synapse.federation.federation_base import FederationBase, event_from_pdu_json
from synapse.federation.persistence import TransactionActions
@ -323,12 +329,21 @@ class FederationServer(FederationBase):
defer.returnValue((200, resp))
@defer.inlineCallbacks
def on_make_join_request(self, origin, room_id, user_id):
def on_make_join_request(self, origin, room_id, user_id, supported_versions):
origin_host, _ = parse_server_name(origin)
yield self.check_server_matches_acl(origin_host, room_id)
room_version = yield self.store.get_room_version(room_id)
if room_version not in supported_versions:
logger.warn("Room version %s not in %s", room_version, supported_versions)
raise IncompatibleRoomVersionError(room_version=room_version)
pdu = yield self.handler.on_make_join_request(room_id, user_id)
time_now = self._clock.time_msec()
defer.returnValue({"event": pdu.get_pdu_json(time_now)})
defer.returnValue({
"event": pdu.get_pdu_json(time_now),
"room_version": room_version,
})
@defer.inlineCallbacks
def on_invite_request(self, origin, content):

5
synapse/federation/transport/client.py
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@ -195,7 +195,7 @@ class TransportLayerClient(object):
@defer.inlineCallbacks
@log_function
def make_membership_event(self, destination, room_id, user_id, membership):
def make_membership_event(self, destination, room_id, user_id, membership, params):
"""Asks a remote server to build and sign us a membership event
Note that this does not append any events to any graphs.
@ -205,6 +205,8 @@ class TransportLayerClient(object):
room_id (str): room to join/leave
user_id (str): user to be joined/left
membership (str): one of join/leave
params (dict[str, str|Iterable[str]]): Query parameters to include in the
request.
Returns:
Deferred: Succeeds when we get a 2xx HTTP response. The result
@ -241,6 +243,7 @@ class TransportLayerClient(object):
content = yield self.client.get_json(
destination=destination,
path=path,
args=params,
retry_on_dns_fail=retry_on_dns_fail,
timeout=20000,
ignore_backoff=ignore_backoff,

71
synapse/federation/transport/server.py
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@ -190,6 +190,41 @@ def _parse_auth_header(header_bytes):
class BaseFederationServlet(object):
"""Abstract base class for federation servlet classes.
The servlet object should have a PATH attribute which takes the form of a regexp to
match against the request path (excluding the /federation/v1 prefix).
The servlet should also implement one or more of on_GET, on_POST, on_PUT, to match
the appropriate HTTP method. These methods have the signature:
on_<METHOD>(self, origin, content, query, **kwargs)
With arguments:
origin (unicode|None): The authenticated server_name of the calling server,
unless REQUIRE_AUTH is set to False and authentication failed.
content (unicode|None): decoded json body of the request. None if the
request was a GET.
query (dict[bytes, list[bytes]]): Query params from the request. url-decoded
(ie, '+' and '%xx' are decoded) but note that it is *not* utf8-decoded
yet.
**kwargs (dict[unicode, unicode]): the dict mapping keys to path
components as specified in the path match regexp.
Returns:
Deferred[(int, object)|None]: either (response code, response object) to
return a JSON response, or None if the request has already been handled.
Raises:
SynapseError: to return an error code
Exception: other exceptions will be caught, logged, and a 500 will be
returned.
"""
REQUIRE_AUTH = True
def __init__(self, handler, authenticator, ratelimiter, server_name):
@ -204,6 +239,18 @@ class BaseFederationServlet(object):
@defer.inlineCallbacks
@functools.wraps(func)
def new_func(request, *args, **kwargs):
""" A callback which can be passed to HttpServer.RegisterPaths
Args:
request (twisted.web.http.Request):
*args: unused?
**kwargs (dict[unicode, unicode]): the dict mapping keys to path
components as specified in the path match regexp.
Returns:
Deferred[(int, object)|None]: (response code, response object) as returned
by the callback method. None if the request has already been handled.
"""
content = None
if request.method in ["PUT", "POST"]:
# TODO: Handle other method types? other content types?
@ -384,9 +431,31 @@ class FederationMakeJoinServlet(BaseFederationServlet):
PATH = "/make_join/(?P<context>[^/]*)/(?P<user_id>[^/]*)"
@defer.inlineCallbacks
def on_GET(self, origin, content, query, context, user_id):
def on_GET(self, origin, _content, query, context, user_id):
"""
Args:
origin (unicode): The authenticated server_name of the calling server
_content (None): (GETs don't have bodies)
query (dict[bytes, list[bytes]]): Query params from the request.
**kwargs (dict[unicode, unicode]): the dict mapping keys to path
components as specified in the path match regexp.
Returns:
Deferred[(int, object)|None]: either (response code, response object) to
return a JSON response, or None if the request has already been handled.
"""
versions = query.get(b'ver')
if versions is not None:
supported_versions = [v.decode("utf-8") for v in versions]
else:
supported_versions = ["1"]
content = yield self.handler.on_make_join_request(
origin, context, user_id,
supported_versions=supported_versions,
)
defer.returnValue((200, content))

13
synapse/handlers/federation.py
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@ -30,7 +30,12 @@ from unpaddedbase64 import decode_base64
from twisted.internet import defer
from synapse.api.constants import EventTypes, Membership, RejectedReason
from synapse.api.constants import (
KNOWN_ROOM_VERSIONS,
EventTypes,
Membership,
RejectedReason,
)
from synapse.api.errors import (
AuthError,
CodeMessageException,
@ -922,6 +927,9 @@ class FederationHandler(BaseHandler):
joinee,
"join",
content,
params={
"ver": KNOWN_ROOM_VERSIONS,
},
)
# This shouldn't happen, because the RoomMemberHandler has a
@ -1187,13 +1195,14 @@ class FederationHandler(BaseHandler):
@defer.inlineCallbacks
def _make_and_verify_event(self, target_hosts, room_id, user_id, membership,
content={},):
content={}, params=None):
origin, pdu = yield self.federation_client.make_membership_event(
target_hosts,
room_id,
user_id,
membership,
content,
params=params,
)
logger.debug("Got response to make_%s: %s", membership, pdu)

28
synapse/handlers/room.py
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@ -21,9 +21,17 @@ import math
import string
from collections import OrderedDict
from six import string_types
from twisted.internet import defer
from synapse.api.constants import EventTypes, JoinRules, RoomCreationPreset
from synapse.api.constants import (
DEFAULT_ROOM_VERSION,
KNOWN_ROOM_VERSIONS,
EventTypes,
JoinRules,
RoomCreationPreset,
)
from synapse.api.errors import AuthError, Codes, StoreError, SynapseError
from synapse.types import RoomAlias, RoomID, RoomStreamToken, StreamToken, UserID
from synapse.util import stringutils
@ -99,6 +107,21 @@ class RoomCreationHandler(BaseHandler):
if ratelimit:
yield self.ratelimit(requester)
room_version = config.get("room_version", DEFAULT_ROOM_VERSION)
if not isinstance(room_version, string_types):
raise SynapseError(
400,
"room_version must be a string",
Codes.BAD_JSON,
)
if room_version not in KNOWN_ROOM_VERSIONS:
raise SynapseError(
400,
"Your homeserver does not support this room version",
Codes.UNSUPPORTED_ROOM_VERSION,
)
if "room_alias_name" in config:
for wchar in string.whitespace:
if wchar in config["room_alias_name"]:
@ -184,6 +207,9 @@ class RoomCreationHandler(BaseHandler):
creation_content = config.get("creation_content", {})
# override any attempt to set room versions via the creation_content
creation_content["room_version"] = room_version
room_member_handler = self.hs.get_room_member_handler()
yield self._send_events_for_new_room(

7
synapse/http/matrixfederationclient.py
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@ -439,7 +439,7 @@ class MatrixFederationHttpClient(object):
defer.returnValue(json.loads(body))
@defer.inlineCallbacks
def get_json(self, destination, path, args={}, retry_on_dns_fail=True,
def get_json(self, destination, path, args=None, retry_on_dns_fail=True,
timeout=None, ignore_backoff=False):
""" GETs some json from the given host homeserver and path
@ -447,7 +447,7 @@ class MatrixFederationHttpClient(object):
destination (str): The remote server to send the HTTP request
to.
path (str): The HTTP path.
args (dict): A dictionary used to create query strings, defaults to
args (dict|None): A dictionary used to create query strings, defaults to
None.
timeout (int): How long to try (in ms) the destination for before
giving up. None indicates no timeout and that the request will
@ -702,6 +702,9 @@ def check_content_type_is_json(headers):
def encode_query_args(args):
if args is None:
return b""
encoded_args = {}
for k, vs in args.items():
if isinstance(vs, string_types):

2
synapse/replication/slave/storage/events.py
View File

@ -44,8 +44,8 @@ class SlavedEventStore(EventFederationWorkerStore,
RoomMemberWorkerStore,
EventPushActionsWorkerStore,
StreamWorkerStore,
EventsWorkerStore,
StateGroupWorkerStore,
EventsWorkerStore,
SignatureWorkerStore,
UserErasureWorkerStore,
BaseSlavedStore):

33
synapse/storage/state.py
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@ -21,15 +21,17 @@ from six.moves import range
from twisted.internet import defer
from synapse.api.constants import EventTypes
from synapse.api.errors import NotFoundError
from synapse.storage._base import SQLBaseStore
from synapse.storage.background_updates import BackgroundUpdateStore
from synapse.storage.engines import PostgresEngine
from synapse.storage.events_worker import EventsWorkerStore
from synapse.util.caches import get_cache_factor_for, intern_string
from synapse.util.caches.descriptors import cached, cachedList
from synapse.util.caches.dictionary_cache import DictionaryCache
from synapse.util.stringutils import to_ascii
from ._base import SQLBaseStore
logger = logging.getLogger(__name__)
@ -46,7 +48,8 @@ class _GetStateGroupDelta(namedtuple("_GetStateGroupDelta", ("prev_group", "delt
return len(self.delta_ids) if self.delta_ids else 0
class StateGroupWorkerStore(SQLBaseStore):
# this inherits from EventsWorkerStore because it calls self.get_events
class StateGroupWorkerStore(EventsWorkerStore, SQLBaseStore):
"""The parts of StateGroupStore that can be called from workers.
"""
@ -61,6 +64,30 @@ class StateGroupWorkerStore(SQLBaseStore):
"*stateGroupCache*", 500000 * get_cache_factor_for("stateGroupCache")
)
@defer.inlineCallbacks
def get_room_version(self, room_id):
"""Get the room_version of a given room
Args:
room_id (str)
Returns:
Deferred[str]
Raises:
NotFoundError if the room is unknown
"""
# for now we do this by looking at the create event. We may want to cache this
# more intelligently in future.
state_ids = yield self.get_current_state_ids(room_id)
create_id = state_ids.get((EventTypes.Create, ""))
if not create_id:
raise NotFoundError("Unknown room")
create_event = yield self.get_event(create_id)
defer.returnValue(create_event.content.get("room_version", "1"))
@cached(max_entries=100000, iterable=True)
def get_current_state_ids(self, room_id):
"""Get the current state event ids for a room based on the

4
tests/utils.py
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@ -77,6 +77,10 @@ def setup_test_homeserver(name="test", datastore=None, config=None, reactor=None
config.max_mau_value = 50
config.mau_limits_reserved_threepids = []
# we need a sane default_room_version, otherwise attempts to create rooms will
# fail.
config.default_room_version = "1"
# disable user directory updates, because they get done in the
# background, which upsets the test runner.
config.update_user_directory = False