From 5d7c9ab7898f2721aa3f60ab76c53dc44322be77 Mon Sep 17 00:00:00 2001 From: Erik Johnston Date: Thu, 4 Dec 2014 11:27:59 +0000 Subject: [PATCH] Begin converting things to use the new Event structure --- synapse/api/auth.py | 11 +----- synapse/events/__init__.py | 3 ++ synapse/federation/replication.py | 12 +++--- synapse/handlers/_base.py | 65 +++++++++++++++++++++++++------ synapse/handlers/federation.py | 9 +---- synapse/handlers/room.py | 1 + synapse/state.py | 18 +++++++-- synapse/storage/signatures.py | 16 ++++++++ 8 files changed, 96 insertions(+), 39 deletions(-) diff --git a/synapse/api/auth.py b/synapse/api/auth.py index 50d4be113..5261c3e3b 100644 --- a/synapse/api/auth.py +++ b/synapse/api/auth.py @@ -393,18 +393,11 @@ class Auth(object): if member_event.content["membership"] == Membership.JOIN: auth_events.append(member_event.event_id) - hashes = yield self.store.get_event_reference_hashes( + auth_events = yield self.store.add_event_hashes( auth_events ) - hashes = [ - { - k: encode_base64(v) for k, v in h.items() - if k == "sha256" - } - for h in hashes - ] - defer.returnValue(zip(auth_events, hashes)) + defer.returnValue(auth_events) @log_function def _can_send_event(self, event, auth_events): diff --git a/synapse/events/__init__.py b/synapse/events/__init__.py index 674819891..6a05ba2d1 100644 --- a/synapse/events/__init__.py +++ b/synapse/events/__init__.py @@ -81,6 +81,9 @@ class EventBase(object): type = _event_dict_property("type") user_id = _event_dict_property("sender") + def is_state(self): + return hasattr(self, "state_key") + def get_dict(self): d = dict(self._original) d.update({ diff --git a/synapse/federation/replication.py b/synapse/federation/replication.py index 01f87fe42..bd56a4c10 100644 --- a/synapse/federation/replication.py +++ b/synapse/federation/replication.py @@ -112,7 +112,7 @@ class ReplicationLayer(object): self.query_handlers[query_type] = handler @log_function - def send_pdu(self, pdu): + def send_pdu(self, pdu, destinations): """Informs the replication layer about a new PDU generated within the home server that should be transmitted to others. @@ -131,7 +131,7 @@ class ReplicationLayer(object): logger.debug("[%s] transaction_layer.enqueue_pdu... ", pdu.event_id) # TODO, add errback, etc. - self._transaction_queue.enqueue_pdu(pdu, order) + self._transaction_queue.enqueue_pdu(pdu, destinations, order) logger.debug( "[%s] transaction_layer.enqueue_pdu... done", @@ -705,15 +705,13 @@ class _TransactionQueue(object): @defer.inlineCallbacks @log_function - def enqueue_pdu(self, pdu, order): + def enqueue_pdu(self, pdu, destinations, order): # We loop through all destinations to see whether we already have # a transaction in progress. If we do, stick it in the pending_pdus # table and we'll get back to it later. - destinations = set([ - d for d in pdu.destinations - if d != self.server_name - ]) + destinations = set(destinations) + destinations.remove(self.server_name) logger.debug("Sending to: %s", str(destinations)) diff --git a/synapse/handlers/_base.py b/synapse/handlers/_base.py index a45715bf6..890b51be3 100644 --- a/synapse/handlers/_base.py +++ b/synapse/handlers/_base.py @@ -15,11 +15,11 @@ from twisted.internet import defer -from synapse.api.errors import LimitExceededError +from synapse.api.errors import LimitExceededError, SynapseError from synapse.util.async import run_on_reactor from synapse.crypto.event_signing import add_hashes_and_signatures from synapse.api.events.room import RoomMemberEvent -from synapse.api.constants import Membership +from synapse.api.constants import Membership, EventTypes from synapse.events.snapshot import EventSnapshot, EventContext @@ -59,7 +59,7 @@ class BaseHandler(object): ) @defer.inlineCallbacks - def _handle_new_client_event(self, builder): + def _create_new_client_event(self, builder): latest_ret = yield self.store.get_latest_events_in_room( builder.room_id, ) @@ -67,16 +67,27 @@ class BaseHandler(object): depth = max([d for _, _, d in latest_ret]) prev_events = [(e, h) for e, h, _ in latest_ret] - group, curr_state = yield self.state_handler.resolve_state_groups( - [e for e, _ in prev_events] - ) + state_handler = self.state_handler + if builder.is_state(): + ret = yield state_handler.resolve_state_groups( + [e for e, _ in prev_events], + event_type=builder.event_type, + state_key=builder.state_key, + ) - snapshot = EventSnapshot( - prev_events=prev_events, - depth=depth, - current_state=curr_state, - current_state_group=group, - ) + group, curr_state, prev_state = ret + + prev_state = yield self.store.add_event_hashes( + prev_state + ) + + builder.prev_state = prev_state + else: + group, curr_state, _ = yield state_handler.resolve_state_groups( + [e for e, _ in prev_events], + ) + + builder.internal_metadata.state_group = group builder.prev_events = prev_events builder.depth = depth @@ -103,9 +114,39 @@ class BaseHandler(object): auth_events=curr_auth_events, ) + defer.returnValue( + (event, context,) + ) + + @defer.inlineCallbacks + def _handle_new_client_event(self, event, context): + # We now need to go and hit out to wherever we need to hit out to. + self.auth.check(event, auth_events=context.auth_events) + yield self.store.persist_event(event) + destinations = set() + for k, s in context.current_state.items(): + try: + if k[0] == EventTypes.Member: + if s.content["membership"] == Membership.JOIN: + destinations.add( + self.hs.parse_userid(s.state_key).domain + ) + except SynapseError: + logger.warn( + "Failed to get destination from event %s", s.event_id + ) + + yield self.notifier.on_new_room_event(event) + + federation_handler = self.hs.get_handlers().federation_handler + yield federation_handler.handle_new_event( + event, + None, + destinations=destinations, + ) @defer.inlineCallbacks def _on_new_room_event(self, event, snapshot, extra_destinations=[], diff --git a/synapse/handlers/federation.py b/synapse/handlers/federation.py index 925eb5376..7bd36e415 100644 --- a/synapse/handlers/federation.py +++ b/synapse/handlers/federation.py @@ -76,7 +76,7 @@ class FederationHandler(BaseHandler): @log_function @defer.inlineCallbacks - def handle_new_event(self, event, snapshot): + def handle_new_event(self, event, snapshot, destinations): """ Takes in an event from the client to server side, that has already been authed and handled by the state module, and sends it to any remote home servers that may be interested. @@ -92,12 +92,7 @@ class FederationHandler(BaseHandler): yield run_on_reactor() - pdu = event - - if not hasattr(pdu, "destinations") or not pdu.destinations: - pdu.destinations = [] - - yield self.replication_layer.send_pdu(pdu) + yield self.replication_layer.send_pdu(event, destinations) @log_function @defer.inlineCallbacks diff --git a/synapse/handlers/room.py b/synapse/handlers/room.py index 6e1c37df0..52a978882 100644 --- a/synapse/handlers/room.py +++ b/synapse/handlers/room.py @@ -378,6 +378,7 @@ class RoomMemberHandler(BaseHandler): else: # This is not a JOIN, so we can handle it normally. + # FIXME: This isn't idempotency. if prev_state and prev_state.membership == event.membership: # double same action, treat this event as a NOOP. defer.returnValue({}) diff --git a/synapse/state.py b/synapse/state.py index 430665f7b..8a556a27f 100644 --- a/synapse/state.py +++ b/synapse/state.py @@ -89,7 +89,7 @@ class StateHandler(object): ids = [e for e, _ in event.prev_events] ret = yield self.resolve_state_groups(ids) - state_group, new_state = ret + state_group, new_state, _ = ret event.old_state_events = copy.deepcopy(new_state) @@ -137,7 +137,7 @@ class StateHandler(object): @defer.inlineCallbacks @log_function - def resolve_state_groups(self, event_ids): + def resolve_state_groups(self, event_ids, event_type=None, state_key=""): """ Given a list of event_ids this method fetches the state at each event, resolves conflicts between them and returns them. @@ -156,7 +156,10 @@ class StateHandler(object): (e.type, e.state_key): e for e in state_list } - defer.returnValue((name, state)) + prev_state = state.get((event_type, state_key), None) + if prev_state: + prev_state = prev_state.event_id + defer.returnValue((name, state, [prev_state])) state = {} for group, g_state in state_groups.items(): @@ -177,6 +180,13 @@ class StateHandler(object): if len(v.values()) > 1 } + if event_type: + prev_states = conflicted_state.get( + (event_type, state_key), {} + ).keys() + else: + prev_states = [] + try: new_state = {} new_state.update(unconflicted_state) @@ -186,7 +196,7 @@ class StateHandler(object): logger.exception("Failed to resolve state") raise - defer.returnValue((None, new_state)) + defer.returnValue((None, new_state, prev_states)) def _get_power_level_from_event_state(self, event, user_id): if hasattr(event, "old_state_events") and event.old_state_events: diff --git a/synapse/storage/signatures.py b/synapse/storage/signatures.py index eea4f2106..e2f11c7ff 100644 --- a/synapse/storage/signatures.py +++ b/synapse/storage/signatures.py @@ -15,6 +15,8 @@ from _base import SQLBaseStore +from syutil.base64util import encode_base64 + class SignatureStore(SQLBaseStore): """Persistence for event signatures and hashes""" @@ -67,6 +69,20 @@ class SignatureStore(SQLBaseStore): f ) + def add_event_hashes(self, event_ids): + hashes = yield self.store.get_event_reference_hashes( + event_ids + ) + hashes = [ + { + k: encode_base64(v) for k, v in h.items() + if k == "sha256" + } + for h in hashes + ] + + defer.returnValue(zip(event_ids, hashes)) + def _get_event_reference_hashes_txn(self, txn, event_id): """Get all the hashes for a given PDU. Args: