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Remove HTTP replication APIs

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This commit is contained in:
Erik Johnston 2017-04-11 09:52:11 +01:00
parent 2e6f5a4910
commit 28a4649785
5 changed files with 0 additions and 753 deletions
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4
synapse/app/homeserver.py
View file

@ -55,7 +55,6 @@ from synapse.crypto import context_factory
from synapse.util.logcontext import LoggingContext, PreserveLoggingContext
from synapse.metrics import register_memory_metrics, get_metrics_for
from synapse.metrics.resource import MetricsResource, METRICS_PREFIX
from synapse.replication.resource import ReplicationResource, REPLICATION_PREFIX
from synapse.replication.tcp.resource import ReplicationStreamProtocolFactory
from synapse.federation.transport.server import TransportLayerServer
@ -167,9 +166,6 @@ class SynapseHomeServer(HomeServer):
if name == "metrics" and self.get_config().enable_metrics:
resources[METRICS_PREFIX] = MetricsResource(self)
if name == "replication":
resources[REPLICATION_PREFIX] = ReplicationResource(self)
if WEB_CLIENT_PREFIX in resources:
root_resource = RootRedirect(WEB_CLIENT_PREFIX)
else:

60
synapse/replication/expire_cache.py
View file

@ -1,60 +0,0 @@
# Copyright 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.
from synapse.http.server import respond_with_json_bytes, request_handler
from synapse.http.servlet import parse_json_object_from_request
from twisted.web.resource import Resource
from twisted.web.server import NOT_DONE_YET
class ExpireCacheResource(Resource):
"""
HTTP endpoint for expiring storage caches.
POST /_synapse/replication/expire_cache HTTP/1.1
Content-Type: application/json
{
"invalidate": [
{
"name": "func_name",
"keys": ["key1", "key2"]
}
]
}
"""
def __init__(self, hs):
Resource.__init__(self) # Resource is old-style, so no super()
self.store = hs.get_datastore()
self.version_string = hs.version_string
self.clock = hs.get_clock()
def render_POST(self, request):
self._async_render_POST(request)
return NOT_DONE_YET
@request_handler()
def _async_render_POST(self, request):
content = parse_json_object_from_request(request)
for row in content["invalidate"]:
name = row["name"]
keys = tuple(row["keys"])
getattr(self.store, name).invalidate(keys)
respond_with_json_bytes(request, 200, "{}")

59
synapse/replication/presence_resource.py
View file

@ -1,59 +0,0 @@
# Copyright 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.
from synapse.http.server import respond_with_json_bytes, request_handler
from synapse.http.servlet import parse_json_object_from_request
from twisted.web.resource import Resource
from twisted.web.server import NOT_DONE_YET
from twisted.internet import defer
class PresenceResource(Resource):
"""
HTTP endpoint for marking users as syncing.
POST /_synapse/replication/presence HTTP/1.1
Content-Type: application/json
{
"process_id": "<process_id>",
"syncing_users": ["<user_id>"]
}
"""
def __init__(self, hs):
Resource.__init__(self) # Resource is old-style, so no super()
self.version_string = hs.version_string
self.clock = hs.get_clock()
self.presence_handler = hs.get_presence_handler()
def render_POST(self, request):
self._async_render_POST(request)
return NOT_DONE_YET
@request_handler()
@defer.inlineCallbacks
def _async_render_POST(self, request):
content = parse_json_object_from_request(request)
process_id = content["process_id"]
syncing_user_ids = content["syncing_users"]
yield self.presence_handler.update_external_syncs(
process_id, set(syncing_user_ids)
)
respond_with_json_bytes(request, 200, "{}")

54
synapse/replication/pusher_resource.py
View file

@ -1,54 +0,0 @@
# Copyright 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.
from synapse.http.server import respond_with_json_bytes, request_handler
from synapse.http.servlet import parse_json_object_from_request
from twisted.web.resource import Resource
from twisted.web.server import NOT_DONE_YET
from twisted.internet import defer
class PusherResource(Resource):
"""
HTTP endpoint for deleting rejected pushers
"""
def __init__(self, hs):
Resource.__init__(self) # Resource is old-style, so no super()
self.version_string = hs.version_string
self.store = hs.get_datastore()
self.notifier = hs.get_notifier()
self.clock = hs.get_clock()
def render_POST(self, request):
self._async_render_POST(request)
return NOT_DONE_YET
@request_handler()
@defer.inlineCallbacks
def _async_render_POST(self, request):
content = parse_json_object_from_request(request)
for remove in content["remove"]:
yield self.store.delete_pusher_by_app_id_pushkey_user_id(
remove["app_id"],
remove["push_key"],
remove["user_id"],
)
self.notifier.on_new_replication_data()
respond_with_json_bytes(request, 200, "{}")

576
synapse/replication/resource.py
View file

@ -1,576 +0,0 @@
# -*- coding: utf-8 -*-
# Copyright 2015 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 synapse.http.servlet import parse_integer, parse_string
from synapse.http.server import request_handler, finish_request
from synapse.replication.pusher_resource import PusherResource
from synapse.replication.presence_resource import PresenceResource
from synapse.replication.expire_cache import ExpireCacheResource
from synapse.api.errors import SynapseError
from twisted.web.resource import Resource
from twisted.web.server import NOT_DONE_YET
from twisted.internet import defer
import ujson as json
import collections
import logging
logger = logging.getLogger(__name__)
REPLICATION_PREFIX = "/_synapse/replication"
STREAM_NAMES = (
("events",),
("presence",),
("typing",),
("receipts",),
("user_account_data", "room_account_data", "tag_account_data",),
("backfill",),
("push_rules",),
("pushers",),
("caches",),
("to_device",),
("public_rooms",),
("federation",),
("device_lists",),
)
class ReplicationResource(Resource):
"""
HTTP endpoint for extracting data from synapse.
The streams of data returned by the endpoint are controlled by the
parameters given to the API. To return a given stream pass a query
parameter with a position in the stream to return data from or the
special value "-1" to return data from the start of the stream.
If there is no data for any of the supplied streams after the given
position then the request will block until there is data for one
of the streams. This allows clients to long-poll this API.
The possible streams are:
* "streams": A special stream returing the positions of other streams.
* "events": The new events seen on the server.
* "presence": Presence updates.
* "typing": Typing updates.
* "receipts": Receipt updates.
* "user_account_data": Top-level per user account data.
* "room_account_data: Per room per user account data.
* "tag_account_data": Per room per user tags.
* "backfill": Old events that have been backfilled from other servers.
* "push_rules": Per user changes to push rules.
* "pushers": Per user changes to their pushers.
* "caches": Cache invalidations.
The API takes two additional query parameters:
* "timeout": How long to wait before returning an empty response.
* "limit": The maximum number of rows to return for the selected streams.
The response is a JSON object with keys for each stream with updates. Under
each key is a JSON object with:
* "position": The current position of the stream.
* "field_names": The names of the fields in each row.
* "rows": The updates as an array of arrays.
There are a number of ways this API could be used:
1) To replicate the contents of the backing database to another database.
2) To be notified when the contents of a shared backing database changes.
3) To "tail" the activity happening on a server for debugging.
In the first case the client would track all of the streams and store it's
own copy of the data.
In the second case the client might theoretically just be able to follow
the "streams" stream to track where the other streams are. However in
practise it will probably need to get the contents of the streams in
order to expire the any in-memory caches. Whether it gets the contents
of the streams from this replication API or directly from the backing
store is a matter of taste.
In the third case the client would use the "streams" stream to find what
streams are available and their current positions. Then it can start
long-polling this replication API for new data on those streams.
"""
def __init__(self, hs):
Resource.__init__(self) # Resource is old-style, so no super()
self.version_string = hs.version_string
self.store = hs.get_datastore()
self.sources = hs.get_event_sources()
self.presence_handler = hs.get_presence_handler()
self.typing_handler = hs.get_typing_handler()
self.federation_sender = hs.get_federation_sender()
self.notifier = hs.notifier
self.clock = hs.get_clock()
self.config = hs.get_config()
self.putChild("remove_pushers", PusherResource(hs))
self.putChild("syncing_users", PresenceResource(hs))
self.putChild("expire_cache", ExpireCacheResource(hs))
def render_GET(self, request):
self._async_render_GET(request)
return NOT_DONE_YET
@defer.inlineCallbacks
def current_replication_token(self):
stream_token = yield self.sources.get_current_token()
backfill_token = yield self.store.get_current_backfill_token()
push_rules_token, room_stream_token = self.store.get_push_rules_stream_token()
pushers_token = self.store.get_pushers_stream_token()
caches_token = self.store.get_cache_stream_token()
public_rooms_token = self.store.get_current_public_room_stream_id()
federation_token = self.federation_sender.get_current_token()
device_list_token = self.store.get_device_stream_token()
defer.returnValue(_ReplicationToken(
room_stream_token,
int(stream_token.presence_key),
int(stream_token.typing_key),
int(stream_token.receipt_key),
int(stream_token.account_data_key),
backfill_token,
push_rules_token,
pushers_token,
0, # State stream is no longer a thing
caches_token,
int(stream_token.to_device_key),
int(public_rooms_token),
int(federation_token),
int(device_list_token),
))
@request_handler()
@defer.inlineCallbacks
def _async_render_GET(self, request):
limit = parse_integer(request, "limit", 100)
timeout = parse_integer(request, "timeout", 10 * 1000)
request.setHeader(b"Content-Type", b"application/json")
request_streams = {
name: parse_integer(request, name)
for names in STREAM_NAMES for name in names
}
request_streams["streams"] = parse_string(request, "streams")
federation_ack = parse_integer(request, "federation_ack", None)
def replicate():
return self.replicate(
request_streams, limit,
federation_ack=federation_ack
)
writer = yield self.notifier.wait_for_replication(replicate, timeout)
result = writer.finish()
for stream_name, stream_content in result.items():
logger.info(
"Replicating %d rows of %s from %s -> %s",
len(stream_content["rows"]),
stream_name,
request_streams.get(stream_name),
stream_content["position"],
)
request.write(json.dumps(result, ensure_ascii=False))
finish_request(request)
@defer.inlineCallbacks
def replicate(self, request_streams, limit, federation_ack=None):
writer = _Writer()
current_token = yield self.current_replication_token()
logger.debug("Replicating up to %r", current_token)
if limit == 0:
raise SynapseError(400, "Limit cannot be 0")
yield self.account_data(writer, current_token, limit, request_streams)
yield self.events(writer, current_token, limit, request_streams)
# TODO: implement limit
yield self.presence(writer, current_token, request_streams)
yield self.typing(writer, current_token, request_streams)
yield self.receipts(writer, current_token, limit, request_streams)
yield self.push_rules(writer, current_token, limit, request_streams)
yield self.pushers(writer, current_token, limit, request_streams)
yield self.caches(writer, current_token, limit, request_streams)
yield self.to_device(writer, current_token, limit, request_streams)
yield self.public_rooms(writer, current_token, limit, request_streams)
yield self.device_lists(writer, current_token, limit, request_streams)
self.federation(writer, current_token, limit, request_streams, federation_ack)
self.streams(writer, current_token, request_streams)
logger.debug("Replicated %d rows", writer.total)
defer.returnValue(writer)
def streams(self, writer, current_token, request_streams):
request_token = request_streams.get("streams")
streams = []
if request_token is not None:
if request_token == "-1":
for names, position in zip(STREAM_NAMES, current_token):
streams.extend((name, position) for name in names)
else:
items = zip(
STREAM_NAMES,
current_token,
_ReplicationToken(request_token)
)
for names, current_id, last_id in items:
if last_id < current_id:
streams.extend((name, current_id) for name in names)
if streams:
writer.write_header_and_rows(
"streams", streams, ("name", "position"),
position=str(current_token)
)
@defer.inlineCallbacks
def events(self, writer, current_token, limit, request_streams):
request_events = request_streams.get("events")
request_backfill = request_streams.get("backfill")
if request_events is not None or request_backfill is not None:
if request_events is None:
request_events = current_token.events
if request_backfill is None:
request_backfill = current_token.backfill
no_new_tokens = (
request_events == current_token.events
and request_backfill == current_token.backfill
)
if no_new_tokens:
return
res = yield self.store.get_all_new_events(
request_backfill, request_events,
current_token.backfill, current_token.events,
limit
)
upto_events_token = _position_from_rows(
res.new_forward_events, current_token.events
)
upto_backfill_token = _position_from_rows(
res.new_backfill_events, current_token.backfill
)
if request_events != upto_events_token:
writer.write_header_and_rows("events", res.new_forward_events, (
"position", "event_id", "room_id", "type", "state_key",
), position=upto_events_token)
if request_backfill != upto_backfill_token:
writer.write_header_and_rows("backfill", res.new_backfill_events, (
"position", "event_id", "room_id", "type", "state_key", "redacts",
), position=upto_backfill_token)
writer.write_header_and_rows(
"forward_ex_outliers", res.forward_ex_outliers,
("position", "event_id", "state_group"),
)
writer.write_header_and_rows(
"backward_ex_outliers", res.backward_ex_outliers,
("position", "event_id", "state_group"),
)
@defer.inlineCallbacks
def presence(self, writer, current_token, request_streams):
current_position = current_token.presence
request_presence = request_streams.get("presence")
if request_presence is not None and request_presence != current_position:
presence_rows = yield self.presence_handler.get_all_presence_updates(
request_presence, current_position
)
upto_token = _position_from_rows(presence_rows, current_position)
writer.write_header_and_rows("presence", presence_rows, (
"position", "user_id", "state", "last_active_ts",
"last_federation_update_ts", "last_user_sync_ts",
"status_msg", "currently_active",
), position=upto_token)
@defer.inlineCallbacks
def typing(self, writer, current_token, request_streams):
current_position = current_token.typing
request_typing = request_streams.get("typing")
if request_typing is not None and request_typing != current_position:
# If they have a higher token than current max, we can assume that
# they had been talking to a previous instance of the master. Since
# we reset the token on restart, the best (but hacky) thing we can
# do is to simply resend down all the typing notifications.
if request_typing > current_position:
request_typing = 0
typing_rows = yield self.typing_handler.get_all_typing_updates(
request_typing, current_position
)
upto_token = _position_from_rows(typing_rows, current_position)
writer.write_header_and_rows("typing", typing_rows, (
"position", "room_id", "typing"
), position=upto_token)
@defer.inlineCallbacks
def receipts(self, writer, current_token, limit, request_streams):
current_position = current_token.receipts
request_receipts = request_streams.get("receipts")
if request_receipts is not None and request_receipts != current_position:
receipts_rows = yield self.store.get_all_updated_receipts(
request_receipts, current_position, limit
)
upto_token = _position_from_rows(receipts_rows, current_position)
writer.write_header_and_rows("receipts", receipts_rows, (
"position", "room_id", "receipt_type", "user_id", "event_id", "data"
), position=upto_token)
@defer.inlineCallbacks
def account_data(self, writer, current_token, limit, request_streams):
current_position = current_token.account_data
user_account_data = request_streams.get("user_account_data")
room_account_data = request_streams.get("room_account_data")
tag_account_data = request_streams.get("tag_account_data")
if user_account_data is not None or room_account_data is not None:
if user_account_data is None:
user_account_data = current_position
if room_account_data is None:
room_account_data = current_position
no_new_tokens = (
user_account_data == current_position
and room_account_data == current_position
)
if no_new_tokens:
return
user_rows, room_rows = yield self.store.get_all_updated_account_data(
user_account_data, room_account_data, current_position, limit
)
upto_users_token = _position_from_rows(user_rows, current_position)
upto_rooms_token = _position_from_rows(room_rows, current_position)
writer.write_header_and_rows("user_account_data", user_rows, (
"position", "user_id", "type", "content"
), position=upto_users_token)
writer.write_header_and_rows("room_account_data", room_rows, (
"position", "user_id", "room_id", "type", "content"
), position=upto_rooms_token)
if tag_account_data is not None:
tag_rows = yield self.store.get_all_updated_tags(
tag_account_data, current_position, limit
)
upto_tag_token = _position_from_rows(tag_rows, current_position)
writer.write_header_and_rows("tag_account_data", tag_rows, (
"position", "user_id", "room_id", "tags"
), position=upto_tag_token)
@defer.inlineCallbacks
def push_rules(self, writer, current_token, limit, request_streams):
current_position = current_token.push_rules
push_rules = request_streams.get("push_rules")
if push_rules is not None and push_rules != current_position:
rows = yield self.store.get_all_push_rule_updates(
push_rules, current_position, limit
)
upto_token = _position_from_rows(rows, current_position)
writer.write_header_and_rows("push_rules", rows, (
"position", "event_stream_ordering", "user_id", "rule_id", "op",
"priority_class", "priority", "conditions", "actions"
), position=upto_token)
@defer.inlineCallbacks
def pushers(self, writer, current_token, limit, request_streams):
current_position = current_token.pushers
pushers = request_streams.get("pushers")
if pushers is not None and pushers != current_position:
updated, deleted = yield self.store.get_all_updated_pushers(
pushers, current_position, limit
)
upto_token = _position_from_rows(updated, current_position)
writer.write_header_and_rows("pushers", updated, (
"position", "user_id", "access_token", "profile_tag", "kind",
"app_id", "app_display_name", "device_display_name", "pushkey",
"ts", "lang", "data"
), position=upto_token)
writer.write_header_and_rows("deleted_pushers", deleted, (
"position", "user_id", "app_id", "pushkey"
), position=upto_token)
@defer.inlineCallbacks
def caches(self, writer, current_token, limit, request_streams):
current_position = current_token.caches
caches = request_streams.get("caches")
if caches is not None and caches != current_position:
updated_caches = yield self.store.get_all_updated_caches(
caches, current_position, limit
)
upto_token = _position_from_rows(updated_caches, current_position)
writer.write_header_and_rows("caches", updated_caches, (
"position", "cache_func", "keys", "invalidation_ts"
), position=upto_token)
@defer.inlineCallbacks
def to_device(self, writer, current_token, limit, request_streams):
current_position = current_token.to_device
to_device = request_streams.get("to_device")
if to_device is not None and to_device != current_position:
to_device_rows = yield self.store.get_all_new_device_messages(
to_device, current_position, limit
)
upto_token = _position_from_rows(to_device_rows, current_position)
writer.write_header_and_rows("to_device", to_device_rows, (
"position", "user_id", "device_id", "message_json"
), position=upto_token)
@defer.inlineCallbacks
def public_rooms(self, writer, current_token, limit, request_streams):
current_position = current_token.public_rooms
public_rooms = request_streams.get("public_rooms")
if public_rooms is not None and public_rooms != current_position:
public_rooms_rows = yield self.store.get_all_new_public_rooms(
public_rooms, current_position, limit
)
upto_token = _position_from_rows(public_rooms_rows, current_position)
writer.write_header_and_rows("public_rooms", public_rooms_rows, (
"position", "room_id", "visibility", "appservice_id", "network_id",
), position=upto_token)
def federation(self, writer, current_token, limit, request_streams, federation_ack):
if self.config.send_federation:
return
current_position = current_token.federation
federation = request_streams.get("federation")
if federation is not None and federation != current_position:
federation_rows = self.federation_sender.get_replication_rows(
federation, current_position, limit, federation_ack=federation_ack,
)
upto_token = _position_from_rows(federation_rows, current_position)
writer.write_header_and_rows("federation", federation_rows, (
"position", "type", "content",
), position=upto_token)
@defer.inlineCallbacks
def device_lists(self, writer, current_token, limit, request_streams):
current_position = current_token.device_lists
device_lists = request_streams.get("device_lists")
if device_lists is not None and device_lists != current_position:
changes = yield self.store.get_all_device_list_changes_for_remotes(
device_lists, current_position,
)
writer.write_header_and_rows("device_lists", changes, (
"position", "user_id", "destination",
), position=current_position)
class _Writer(object):
"""Writes the streams as a JSON object as the response to the request"""
def __init__(self):
self.streams = {}
self.total = 0
def write_header_and_rows(self, name, rows, fields, position=None):
if position is None:
if rows:
position = rows[-1][0]
else:
return
self.streams[name] = {
"position": position if type(position) is int else str(position),
"field_names": fields,
"rows": rows,
}
self.total += len(rows)
def __nonzero__(self):
return bool(self.total)
def finish(self):
return self.streams
class _ReplicationToken(collections.namedtuple("_ReplicationToken", (
"events", "presence", "typing", "receipts", "account_data", "backfill",
"push_rules", "pushers", "state", "caches", "to_device", "public_rooms",
"federation", "device_lists",
))):
__slots__ = []
def __new__(cls, *args):
if len(args) == 1:
streams = [int(value) for value in args[0].split("_")]
if len(streams) < len(cls._fields):
streams.extend([0] * (len(cls._fields) - len(streams)))
return cls(*streams)
else:
return super(_ReplicationToken, cls).__new__(cls, *args)
def __str__(self):
return "_".join(str(value) for value in self)
def _position_from_rows(rows, current_position):
"""Calculates a position to return for a stream. Ideally we want to return the
position of the last row, as that will be the most correct. However, if there
are no rows we fall back to using the current position to stop us from
repeatedly hitting the storage layer unncessarily thinking there are updates.
(Not all advances of the token correspond to an actual update)
We can't just always return the current position, as we often limit the
number of rows we replicate, and so the stream may lag. The assumption is
that if the storage layer returns no new rows then we are not lagging and
we are at the `current_position`.
"""
if rows:
return rows[-1][0]
return current_position