diff options
Diffstat (limited to 'synapse/handlers/message.py')
| -rw-r--r-- | synapse/handlers/message.py | 277 |
1 files changed, 219 insertions, 58 deletions
diff --git a/synapse/handlers/message.py b/synapse/handlers/message.py index 5c50c611ba..15caf1950a 100644 --- a/synapse/handlers/message.py +++ b/synapse/handlers/message.py @@ -17,12 +17,19 @@ from twisted.internet import defer from synapse.api.constants import EventTypes, Membership from synapse.api.errors import AuthError, Codes, SynapseError -from synapse.streams.config import PaginationConfig +from synapse.crypto.event_signing import add_hashes_and_signatures from synapse.events.utils import serialize_event from synapse.events.validator import EventValidator +from synapse.push.action_generator import ActionGenerator +from synapse.streams.config import PaginationConfig +from synapse.types import ( + UserID, RoomAlias, RoomStreamToken, StreamToken, get_domain_from_id +) from synapse.util import unwrapFirstError +from synapse.util.async import concurrently_execute, run_on_reactor from synapse.util.caches.snapshot_cache import SnapshotCache -from synapse.types import UserID, RoomStreamToken, StreamToken +from synapse.util.logcontext import preserve_fn +from synapse.visibility import filter_events_for_client from ._base import BaseHandler @@ -33,10 +40,6 @@ import logging logger = logging.getLogger(__name__) -def collect_presencelike_data(distributor, user, content): - return distributor.fire("collect_presencelike_data", user, content) - - class MessageHandler(BaseHandler): def __init__(self, hs): @@ -48,35 +51,6 @@ class MessageHandler(BaseHandler): self.snapshot_cache = SnapshotCache() @defer.inlineCallbacks - def get_message(self, msg_id=None, room_id=None, sender_id=None, - user_id=None): - """ Retrieve a message. - - Args: - msg_id (str): The message ID to obtain. - room_id (str): The room where the message resides. - sender_id (str): The user ID of the user who sent the message. - user_id (str): The user ID of the user making this request. - Returns: - The message, or None if no message exists. - Raises: - SynapseError if something went wrong. - """ - yield self.auth.check_joined_room(room_id, user_id) - - # Pull out the message from the db -# msg = yield self.store.get_message( -# room_id=room_id, -# msg_id=msg_id, -# user_id=sender_id -# ) - - # TODO (erikj): Once we work out the correct c-s api we need to think - # on how to do this. - - defer.returnValue(None) - - @defer.inlineCallbacks def get_messages(self, requester, room_id=None, pagin_config=None, as_client_event=True): """Get messages in a room. @@ -155,7 +129,8 @@ class MessageHandler(BaseHandler): "end": next_token.to_string(), }) - events = yield self._filter_events_for_client( + events = yield filter_events_for_client( + self.store, user_id, events, is_peeking=(member_event_id is None), @@ -175,7 +150,7 @@ class MessageHandler(BaseHandler): defer.returnValue(chunk) @defer.inlineCallbacks - def create_event(self, event_dict, token_id=None, txn_id=None): + def create_event(self, event_dict, token_id=None, txn_id=None, prev_event_ids=None): """ Given a dict from a client, create a new event. @@ -186,6 +161,9 @@ class MessageHandler(BaseHandler): Args: event_dict (dict): An entire event + token_id (str) + txn_id (str) + prev_event_ids (list): The prev event ids to use when creating the event Returns: Tuple of created event (FrozenEvent), Context @@ -198,12 +176,8 @@ class MessageHandler(BaseHandler): membership = builder.content.get("membership", None) target = UserID.from_string(builder.state_key) - if membership == Membership.JOIN: + if membership in {Membership.JOIN, Membership.INVITE}: # If event doesn't include a display name, add one. - yield collect_presencelike_data( - self.distributor, target, builder.content - ) - elif membership == Membership.INVITE: profile = self.hs.get_handlers().profile_handler content = builder.content @@ -224,6 +198,7 @@ class MessageHandler(BaseHandler): event, context = yield self._create_new_client_event( builder=builder, + prev_event_ids=prev_event_ids, ) defer.returnValue((event, context)) @@ -261,7 +236,7 @@ class MessageHandler(BaseHandler): ) if event.type == EventTypes.Message: - presence = self.hs.get_handlers().presence_handler + presence = self.hs.get_presence_handler() yield presence.bump_presence_active_time(user) def deduplicate_state_event(self, event, context): @@ -515,8 +490,8 @@ class MessageHandler(BaseHandler): ] ).addErrback(unwrapFirstError) - messages = yield self._filter_events_for_client( - user_id, messages + messages = yield filter_events_for_client( + self.store, user_id, messages ) start_token = now_token.copy_and_replace("room_key", token[0]) @@ -556,14 +531,7 @@ class MessageHandler(BaseHandler): except: logger.exception("Failed to get snapshot") - # Only do N rooms at once - n = 5 - d_list = [handle_room(e) for e in room_list] - for i in range(0, len(d_list), n): - yield defer.gatherResults( - d_list[i:i + n], - consumeErrors=True - ).addErrback(unwrapFirstError) + yield concurrently_execute(handle_room, room_list, 10) account_data_events = [] for account_data_type, content in account_data.items(): @@ -658,8 +626,8 @@ class MessageHandler(BaseHandler): end_token=stream_token ) - messages = yield self._filter_events_for_client( - user_id, messages, is_peeking=is_peeking + messages = yield filter_events_for_client( + self.store, user_id, messages, is_peeking=is_peeking ) start_token = StreamToken.START.copy_and_replace("room_key", token[0]) @@ -706,7 +674,7 @@ class MessageHandler(BaseHandler): and m.content["membership"] == Membership.JOIN ] - presence_handler = self.hs.get_handlers().presence_handler + presence_handler = self.hs.get_presence_handler() @defer.inlineCallbacks def get_presence(): @@ -739,8 +707,8 @@ class MessageHandler(BaseHandler): consumeErrors=True, ).addErrback(unwrapFirstError) - messages = yield self._filter_events_for_client( - user_id, messages, is_peeking=is_peeking, + messages = yield filter_events_for_client( + self.store, user_id, messages, is_peeking=is_peeking, ) start_token = now_token.copy_and_replace("room_key", token[0]) @@ -763,3 +731,196 @@ class MessageHandler(BaseHandler): ret["membership"] = membership defer.returnValue(ret) + + @defer.inlineCallbacks + def _create_new_client_event(self, builder, prev_event_ids=None): + if prev_event_ids: + prev_events = yield self.store.add_event_hashes(prev_event_ids) + prev_max_depth = yield self.store.get_max_depth_of_events(prev_event_ids) + depth = prev_max_depth + 1 + else: + latest_ret = yield self.store.get_latest_event_ids_and_hashes_in_room( + builder.room_id, + ) + + if latest_ret: + depth = max([d for _, _, d in latest_ret]) + 1 + else: + depth = 1 + + prev_events = [ + (event_id, prev_hashes) + for event_id, prev_hashes, _ in latest_ret + ] + + builder.prev_events = prev_events + builder.depth = depth + + state_handler = self.state_handler + + context = yield state_handler.compute_event_context(builder) + + if builder.is_state(): + builder.prev_state = yield self.store.add_event_hashes( + context.prev_state_events + ) + + yield self.auth.add_auth_events(builder, context) + + signing_key = self.hs.config.signing_key[0] + add_hashes_and_signatures( + builder, self.server_name, signing_key + ) + + event = builder.build() + + logger.debug( + "Created event %s with current state: %s", + event.event_id, context.current_state, + ) + + defer.returnValue( + (event, context,) + ) + + @defer.inlineCallbacks + def handle_new_client_event( + self, + requester, + event, + context, + ratelimit=True, + extra_users=[] + ): + # We now need to go and hit out to wherever we need to hit out to. + + if ratelimit: + self.ratelimit(requester) + + try: + self.auth.check(event, auth_events=context.current_state) + except AuthError as err: + logger.warn("Denying new event %r because %s", event, err) + raise err + + yield self.maybe_kick_guest_users(event, context.current_state.values()) + + if event.type == EventTypes.CanonicalAlias: + # Check the alias is acually valid (at this time at least) + room_alias_str = event.content.get("alias", None) + if room_alias_str: + room_alias = RoomAlias.from_string(room_alias_str) + directory_handler = self.hs.get_handlers().directory_handler + mapping = yield directory_handler.get_association(room_alias) + + if mapping["room_id"] != event.room_id: + raise SynapseError( + 400, + "Room alias %s does not point to the room" % ( + room_alias_str, + ) + ) + + federation_handler = self.hs.get_handlers().federation_handler + + if event.type == EventTypes.Member: + if event.content["membership"] == Membership.INVITE: + def is_inviter_member_event(e): + return ( + e.type == EventTypes.Member and + e.sender == event.sender + ) + + event.unsigned["invite_room_state"] = [ + { + "type": e.type, + "state_key": e.state_key, + "content": e.content, + "sender": e.sender, + } + for k, e in context.current_state.items() + if e.type in self.hs.config.room_invite_state_types + or is_inviter_member_event(e) + ] + + invitee = UserID.from_string(event.state_key) + if not self.hs.is_mine(invitee): + # TODO: Can we add signature from remote server in a nicer + # way? If we have been invited by a remote server, we need + # to get them to sign the event. + + returned_invite = yield federation_handler.send_invite( + invitee.domain, + event, + ) + + event.unsigned.pop("room_state", None) + + # TODO: Make sure the signatures actually are correct. + event.signatures.update( + returned_invite.signatures + ) + + if event.type == EventTypes.Redaction: + if self.auth.check_redaction(event, auth_events=context.current_state): + original_event = yield self.store.get_event( + event.redacts, + check_redacted=False, + get_prev_content=False, + allow_rejected=False, + allow_none=False + ) + if event.user_id != original_event.user_id: + raise AuthError( + 403, + "You don't have permission to redact events" + ) + + if event.type == EventTypes.Create and context.current_state: + raise AuthError( + 403, + "Changing the room create event is forbidden", + ) + + action_generator = ActionGenerator(self.hs) + yield action_generator.handle_push_actions_for_event( + event, context + ) + + (event_stream_id, max_stream_id) = yield self.store.persist_event( + event, context=context + ) + + # this intentionally does not yield: we don't care about the result + # and don't need to wait for it. + preserve_fn(self.hs.get_pusherpool().on_new_notifications)( + event_stream_id, max_stream_id + ) + + destinations = set() + for k, s in context.current_state.items(): + try: + if k[0] == EventTypes.Member: + if s.content["membership"] == Membership.JOIN: + destinations.add(get_domain_from_id(s.state_key)) + except SynapseError: + logger.warn( + "Failed to get destination from event %s", s.event_id + ) + + @defer.inlineCallbacks + def _notify(): + yield run_on_reactor() + self.notifier.on_new_room_event( + event, event_stream_id, max_stream_id, + extra_users=extra_users + ) + + preserve_fn(_notify)() + + # If invite, remove room_state from unsigned before sending. + event.unsigned.pop("invite_room_state", None) + + federation_handler.handle_new_event( + event, destinations=destinations, + ) |