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Split out edu/query registration to a separate class

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This commit is contained in:
Erik Johnston 2018-03-12 16:17:08 +00:00
parent d65ceb4b48
commit c3f79c9da5
10 changed files with 90 additions and 60 deletions
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117
synapse/federation/federation_server.py
View File

@ -17,7 +17,7 @@ import logging
import simplejson as json
from twisted.internet import defer
from synapse.api.errors import AuthError, FederationError, SynapseError
from synapse.api.errors import AuthError, FederationError, SynapseError, NotFoundError
from synapse.crypto.event_signing import compute_event_signature
from synapse.federation.federation_base import (
FederationBase,
@ -56,6 +56,8 @@ class FederationServer(FederationBase):
self._server_linearizer = async.Linearizer("fed_server")
self._transaction_linearizer = async.Linearizer("fed_txn_handler")
self.registry = hs.get_federation_registry()
# We cache responses to state queries, as they take a while and often
# come in waves.
self._state_resp_cache = ResponseCache(hs, timeout_ms=30000)
@ -67,35 +69,6 @@ class FederationServer(FederationBase):
"""
self.handler = handler
def register_edu_handler(self, edu_type, handler):
if edu_type in self.edu_handlers:
raise KeyError("Already have an EDU handler for %s" % (edu_type,))
self.edu_handlers[edu_type] = handler
def register_query_handler(self, query_type, handler):
"""Sets the handler callable that will be used to handle an incoming
federation Query of the given type.
Args:
query_type (str): Category name of the query, which should match
the string used by make_query.
handler (callable): Invoked to handle incoming queries of this type
handler is invoked as:
result = handler(args)
where 'args' is a dict mapping strings to strings of the query
arguments. It should return a Deferred that will eventually yield an
object to encode as JSON.
"""
if query_type in self.query_handlers:
raise KeyError(
"Already have a Query handler for %s" % (query_type,)
)
self.query_handlers[query_type] = handler
@defer.inlineCallbacks
@log_function
def on_backfill_request(self, origin, room_id, versions, limit):
@ -229,16 +202,7 @@ class FederationServer(FederationBase):
@defer.inlineCallbacks
def received_edu(self, origin, edu_type, content):
received_edus_counter.inc()
if edu_type in self.edu_handlers:
try:
yield self.edu_handlers[edu_type](origin, content)
except SynapseError as e:
logger.info("Failed to handle edu %r: %r", edu_type, e)
except Exception as e:
logger.exception("Failed to handle edu %r", edu_type)
else:
logger.warn("Received EDU of type %s with no handler", edu_type)
yield self.registry.on_edu(edu_type, origin, content)
@defer.inlineCallbacks
@log_function
@ -328,14 +292,8 @@ class FederationServer(FederationBase):
@defer.inlineCallbacks
def on_query_request(self, query_type, args):
received_queries_counter.inc(query_type)
if query_type in self.query_handlers:
response = yield self.query_handlers[query_type](args)
defer.returnValue((200, response))
else:
defer.returnValue(
(404, "No handler for Query type '%s'" % (query_type,))
)
resp = yield self.registry.on_query(query_type, args)
defer.returnValue((200, resp))
@defer.inlineCallbacks
def on_make_join_request(self, room_id, user_id):
@ -607,3 +565,66 @@ class FederationServer(FederationBase):
origin, room_id, event_dict
)
defer.returnValue(ret)
class FederationHandlerRegistry(object):
"""Allows classes to register themselves as handlers for a given EDU or
query type for incoming federation traffic.
"""
def __init__(self):
self.edu_handlers = {}
self.query_handlers = {}
def register_edu_handler(self, edu_type, handler):
"""Sets the handler callable that will be used to handle an incoming
federation EDU of the given type.
Args:
edu_type (str): The type of the incoming EDU to register handler for
handler (Callable[str, dict]): A callable invoked on incoming EDU
of the given type. The arguments are the origin server name and
the EDU contents.
"""
if edu_type in self.edu_handlers:
raise KeyError("Already have an EDU handler for %s" % (edu_type,))
self.edu_handlers[edu_type] = handler
def register_query_handler(self, query_type, handler):
"""Sets the handler callable that will be used to handle an incoming
federation query of the given type.
Args:
query_type (str): Category name of the query, which should match
the string used by make_query.
handler (Callable[dict] -> Deferred[dict]): Invoked to handle
incoming queries of this type. The return will be yielded
on and the result used as the response to the query request.
"""
if query_type in self.query_handlers:
raise KeyError(
"Already have a Query handler for %s" % (query_type,)
)
self.query_handlers[query_type] = handler
@defer.inlineCallbacks
def on_edu(self, edu_type, origin, content):
handler = self.edu_handlers.get(edu_type)
if not handler:
logger.warn("No handler registered for EDU type %s", edu_type)
try:
yield handler(origin, content)
except SynapseError as e:
logger.info("Failed to handle edu %r: %r", edu_type, e)
except Exception as e:
logger.exception("Failed to handle edu %r", edu_type)
def on_query(self, query_type, args):
handler = self.query_handlers.get(query_type)
if not handler:
logger.warn("No handler registered for query type %s", query_type)
raise NotFoundError("No handler for Query type '%s'" % (query_type,))
return handler(args)

6
synapse/handlers/device.py
View File

@ -41,10 +41,12 @@ class DeviceHandler(BaseHandler):
self._edu_updater = DeviceListEduUpdater(hs, self)
self.federation.register_edu_handler(
federation_registry = hs.get_federation_registry()
federation_registry.register_edu_handler(
"m.device_list_update", self._edu_updater.incoming_device_list_update,
)
self.federation.register_query_handler(
federation_registry.register_query_handler(
"user_devices", self.on_federation_query_user_devices,
)

2
synapse/handlers/devicemessage.py
View File

@ -37,7 +37,7 @@ class DeviceMessageHandler(object):
self.is_mine = hs.is_mine
self.federation = hs.get_federation_sender()
hs.get_replication_layer().register_edu_handler(
hs.get_federation_registry().register_edu_handler(
"m.direct_to_device", self.on_direct_to_device_edu
)

2
synapse/handlers/directory.py
View File

@ -37,7 +37,7 @@ class DirectoryHandler(BaseHandler):
self.event_creation_handler = hs.get_event_creation_handler()
self.federation = hs.get_replication_layer()
self.federation.register_query_handler(
hs.get_federation_registry().register_query_handler(
"directory", self.on_directory_query
)

2
synapse/handlers/e2e_keys.py
View File

@ -40,7 +40,7 @@ class E2eKeysHandler(object):
# doesn't really work as part of the generic query API, because the
# query request requires an object POST, but we abuse the
# "query handler" interface.
self.federation.register_query_handler(
hs.get_federation_registry().register_query_handler(
"client_keys", self.on_federation_query_client_keys
)

10
synapse/handlers/presence.py
View File

@ -98,24 +98,26 @@ class PresenceHandler(object):
self.state = hs.get_state_handler()
self.replication.register_edu_handler(
federation_registry = hs.get_federation_registry()
federation_registry.register_edu_handler(
"m.presence", self.incoming_presence
)
self.replication.register_edu_handler(
federation_registry.register_edu_handler(
"m.presence_invite",
lambda origin, content: self.invite_presence(
observed_user=UserID.from_string(content["observed_user"]),
observer_user=UserID.from_string(content["observer_user"]),
)
)
self.replication.register_edu_handler(
federation_registry.register_edu_handler(
"m.presence_accept",
lambda origin, content: self.accept_presence(
observed_user=UserID.from_string(content["observed_user"]),
observer_user=UserID.from_string(content["observer_user"]),
)
)
self.replication.register_edu_handler(
federation_registry.register_edu_handler(
"m.presence_deny",
lambda origin, content: self.deny_presence(
observed_user=UserID.from_string(content["observed_user"]),

2
synapse/handlers/profile.py
View File

@ -32,7 +32,7 @@ class ProfileHandler(BaseHandler):
super(ProfileHandler, self).__init__(hs)
self.federation = hs.get_replication_layer()
self.federation.register_query_handler(
hs.get_federation_registry().register_query_handler(
"profile", self.on_profile_query
)

2
synapse/handlers/receipts.py
View File

@ -35,7 +35,7 @@ class ReceiptsHandler(BaseHandler):
self.store = hs.get_datastore()
self.hs = hs
self.federation = hs.get_federation_sender()
hs.get_replication_layer().register_edu_handler(
hs.get_federation_registry().register_edu_handler(
"m.receipt", self._received_remote_receipt
)
self.clock = self.hs.get_clock()

2
synapse/handlers/typing.py
View File

@ -56,7 +56,7 @@ class TypingHandler(object):
self.federation = hs.get_federation_sender()
hs.get_replication_layer().register_edu_handler("m.typing", self._recv_edu)
hs.get_federation_registry().register_edu_handler("m.typing", self._recv_edu)
hs.get_distributor().observe("user_left_room", self.user_left_room)

5
synapse/server.py
View File

@ -34,6 +34,7 @@ from synapse.events.builder import EventBuilderFactory
from synapse.events.spamcheck import SpamChecker
from synapse.federation import initialize_http_replication
from synapse.federation.send_queue import FederationRemoteSendQueue
from synapse.federation.federation_server import FederationHandlerRegistry
from synapse.federation.transport.client import TransportLayerClient
from synapse.federation.transaction_queue import TransactionQueue
from synapse.handlers import Handlers
@ -147,6 +148,7 @@ class HomeServer(object):
'groups_attestation_renewer',
'spam_checker',
'room_member_handler',
'federation_registry',
]
def __init__(self, hostname, **kwargs):
@ -387,6 +389,9 @@ class HomeServer(object):
def build_room_member_handler(self):
return RoomMemberHandler(self)
def build_federation_registry(self):
return FederationHandlerRegistry()
def remove_pusher(self, app_id, push_key, user_id):
return self.get_pusherpool().remove_pusher(app_id, push_key, user_id)