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Support MSC2197 outbound with unstable prefix

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Signed-off-by: Olivier Wilkinson (reivilibre) <olivier@librepush.net>
This commit is contained in:
Olivier Wilkinson (reivilibre) 2019-08-14 13:30:36 +01:00
parent f70d0a1dd9
commit 6fadb560fc
2 changed files with 56 additions and 13 deletions
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40
synapse/federation/transport/client.py
View File

@ -327,21 +327,37 @@ class TransportLayerClient(object):
include_all_networks=False,
third_party_instance_id=None,
):
path = _create_v1_path("/publicRooms")
if search_filter:
# TODO(MSC2197): Move to V1 prefix
path = _create_path(FEDERATION_UNSTABLE_PREFIX, "/publicRooms")
args = {"include_all_networks": "true" if include_all_networks else "false"}
if third_party_instance_id:
args["third_party_instance_id"] = (third_party_instance_id,)
if limit:
args["limit"] = [str(limit)]
if since_token:
args["since"] = [since_token]
data = {"include_all_networks": "true" if include_all_networks else "false"}
if third_party_instance_id:
data["third_party_instance_id"] = third_party_instance_id
if limit:
data["limit"] = str(limit)
if since_token:
data["since"] = since_token
# TODO(erikj): Actually send the search_filter across federation.
data["filter"] = search_filter
response = yield self.client.get_json(
destination=remote_server, path=path, args=args, ignore_backoff=True
)
response = yield self.client.post_json(
destination=remote_server, path=path, data=data, ignore_backoff=True
)
else:
path = _create_v1_path("/publicRooms")
args = {"include_all_networks": "true" if include_all_networks else "false"}
if third_party_instance_id:
args["third_party_instance_id"] = (third_party_instance_id,)
if limit:
args["limit"] = [str(limit)]
if since_token:
args["since"] = [since_token]
response = yield self.client.get_json(
destination=remote_server, path=path, args=args, ignore_backoff=True
)
return response

29
synapse/handlers/room_list.py
View File

@ -25,6 +25,7 @@ from unpaddedbase64 import decode_base64, encode_base64
from twisted.internet import defer
from synapse.api.constants import EventTypes, JoinRules
from synapse.api.errors import Codes, HttpResponseException
from synapse.types import ThirdPartyInstanceID
from synapse.util.async_helpers import concurrently_execute
from synapse.util.caches.descriptors import cachedInlineCallbacks
@ -485,7 +486,33 @@ class RoomListHandler(BaseHandler):
return {"chunk": [], "total_room_count_estimate": 0}
if search_filter:
# We currently don't support searching across federation, so we have
# Searching across federation is defined in MSC2197.
# However, the remote homeserver may or may not actually support it.
# So we first try an MSC2197 remote-filtered search, then fall back
# to a locally-filtered search if we must.
try:
res = yield self._get_remote_list_cached(
server_name,
limit=limit,
since_token=since_token,
include_all_networks=include_all_networks,
third_party_instance_id=third_party_instance_id,
search_filter=search_filter,
)
return res
except HttpResponseException as hre:
syn_err = hre.to_synapse_error()
if hre.code in (404, 405) or syn_err.errcode in (
Codes.UNRECOGNIZED,
Codes.NOT_FOUND,
):
logger.debug("Falling back to locally-filtered /publicRooms")
else:
raise # Not an error that should trigger a fallback.
# if we reach this point, then we fall back to the situation where
# we currently don't support searching across federation, so we have
# to do it manually without pagination
limit = None
since_token = None