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https://git.anonymousland.org/anonymousland/synapse-product.git
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Merge pull request #689 from matrix-org/erikj/member
Do checks for memberships before creating events
This commit is contained in:
Erik Johnston
commit
bf14883a04
@ -204,20 +204,25 @@ class BaseHandler(object):
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)
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@defer.inlineCallbacks
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def _create_new_client_event(self, builder):
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latest_ret = yield self.store.get_latest_event_ids_and_hashes_in_room(
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builder.room_id,
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)
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if latest_ret:
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depth = max([d for _, _, d in latest_ret]) + 1
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def _create_new_client_event(self, builder, prev_event_ids=None):
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if prev_event_ids:
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prev_events = yield self.store.add_event_hashes(prev_event_ids)
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prev_max_depth = yield self.store.get_max_depth_of_events(prev_event_ids)
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depth = prev_max_depth + 1
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else:
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depth = 1
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latest_ret = yield self.store.get_latest_event_ids_and_hashes_in_room(
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builder.room_id,
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)
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prev_events = [
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(event_id, prev_hashes)
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for event_id, prev_hashes, _ in latest_ret
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]
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if latest_ret:
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depth = max([d for _, _, d in latest_ret]) + 1
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else:
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depth = 1
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prev_events = [
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(event_id, prev_hashes)
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for event_id, prev_hashes, _ in latest_ret
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]
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builder.prev_events = prev_events
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builder.depth = depth
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@ -226,49 +231,6 @@ class BaseHandler(object):
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context = yield state_handler.compute_event_context(builder)
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# If we've received an invite over federation, there are no latest
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# events in the room, because we don't know enough about the graph
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# fragment we received to treat it like a graph, so the above returned
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# no relevant events. It may have returned some events (if we have
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# joined and left the room), but not useful ones, like the invite.
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if (
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not self.is_host_in_room(context.current_state) and
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builder.type == EventTypes.Member
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):
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prev_member_event = yield self.store.get_room_member(
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builder.sender, builder.room_id
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)
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# The prev_member_event may already be in context.current_state,
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# despite us not being present in the room; in particular, if
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# inviting user, and all other local users, have already left.
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#
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# In that case, we have all the information we need, and we don't
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# want to drop "context" - not least because we may need to handle
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# the invite locally, which will require us to have the whole
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# context (not just prev_member_event) to auth it.
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#
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context_event_ids = (
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e.event_id for e in context.current_state.values()
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)
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if (
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prev_member_event and
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prev_member_event.event_id not in context_event_ids
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):
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# The prev_member_event is missing from context, so it must
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# have arrived over federation and is an outlier. We forcibly
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# set our context to the invite we received over federation
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builder.prev_events = (
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prev_member_event.event_id,
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prev_member_event.prev_events
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)
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context = yield state_handler.compute_event_context(
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builder,
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old_state=(prev_member_event,)
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)
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if builder.is_state():
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builder.prev_state = yield self.store.add_event_hashes(
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context.prev_state_events
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@ -176,7 +176,7 @@ class MessageHandler(BaseHandler):
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defer.returnValue(chunk)
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@defer.inlineCallbacks
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def create_event(self, event_dict, token_id=None, txn_id=None):
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def create_event(self, event_dict, token_id=None, txn_id=None, prev_event_ids=None):
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"""
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Given a dict from a client, create a new event.
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@ -187,6 +187,9 @@ class MessageHandler(BaseHandler):
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Args:
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event_dict (dict): An entire event
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token_id (str)
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txn_id (str)
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prev_event_ids (list): The prev event ids to use when creating the event
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Returns:
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Tuple of created event (FrozenEvent), Context
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@ -225,6 +228,7 @@ class MessageHandler(BaseHandler):
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event, context = yield self._create_new_client_event(
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builder=builder,
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prev_event_ids=prev_event_ids,
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)
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defer.returnValue((event, context))
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@ -95,6 +95,82 @@ class RoomMemberHandler(BaseHandler):
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if remotedomains is not None:
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remotedomains.add(member.domain)
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@defer.inlineCallbacks
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def _local_membership_update(
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self, requester, target, room_id, membership,
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prev_event_ids,
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txn_id=None,
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ratelimit=True,
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):
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msg_handler = self.hs.get_handlers().message_handler
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content = {"membership": membership}
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if requester.is_guest:
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content["kind"] = "guest"
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event, context = yield msg_handler.create_event(
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{
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"type": EventTypes.Member,
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"content": content,
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"room_id": room_id,
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"sender": requester.user.to_string(),
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"state_key": target.to_string(),
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# For backwards compatibility:
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"membership": membership,
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},
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token_id=requester.access_token_id,
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txn_id=txn_id,
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prev_event_ids=prev_event_ids,
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)
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yield self.handle_new_client_event(
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requester,
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event,
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context,
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extra_users=[target],
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ratelimit=ratelimit,
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)
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prev_member_event = context.current_state.get(
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(EventTypes.Member, target.to_string()),
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None
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)
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if event.membership == Membership.JOIN:
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if not prev_member_event or prev_member_event.membership != Membership.JOIN:
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# Only fire user_joined_room if the user has acutally joined the
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# room. Don't bother if the user is just changing their profile
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# info.
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yield user_joined_room(self.distributor, target, room_id)
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elif event.membership == Membership.LEAVE:
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if prev_member_event and prev_member_event.membership == Membership.JOIN:
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user_left_room(self.distributor, target, room_id)
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@defer.inlineCallbacks
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def remote_join(self, remote_room_hosts, room_id, user, content):
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if len(remote_room_hosts) == 0:
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raise SynapseError(404, "No known servers")
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# We don't do an auth check if we are doing an invite
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# join dance for now, since we're kinda implicitly checking
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# that we are allowed to join when we decide whether or not we
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# need to do the invite/join dance.
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yield self.hs.get_handlers().federation_handler.do_invite_join(
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remote_room_hosts,
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room_id,
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user.to_string(),
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content,
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)
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yield user_joined_room(self.distributor, user, room_id)
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def reject_remote_invite(self, user_id, room_id, remote_room_hosts):
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return self.hs.get_handlers().federation_handler.do_remotely_reject_invite(
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remote_room_hosts,
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room_id,
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user_id
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)
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@defer.inlineCallbacks
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def update_membership(
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self,
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@ -120,28 +196,15 @@ class RoomMemberHandler(BaseHandler):
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third_party_signed,
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)
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msg_handler = self.hs.get_handlers().message_handler
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if not remote_room_hosts:
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remote_room_hosts = []
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content = {"membership": effective_membership_state}
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if requester.is_guest:
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content["kind"] = "guest"
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event, context = yield msg_handler.create_event(
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{
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"type": EventTypes.Member,
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"content": content,
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"room_id": room_id,
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"sender": requester.user.to_string(),
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"state_key": target.to_string(),
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# For backwards compatibility:
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"membership": effective_membership_state,
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},
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token_id=requester.access_token_id,
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txn_id=txn_id,
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latest_event_ids = yield self.store.get_latest_event_ids_in_room(room_id)
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current_state = yield self.state_handler.get_current_state(
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room_id, latest_event_ids=latest_event_ids,
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)
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old_state = context.current_state.get((EventTypes.Member, event.state_key))
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old_state = current_state.get((EventTypes.Member, target.to_string()))
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old_membership = old_state.content.get("membership") if old_state else None
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if action == "unban" and old_membership != "ban":
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raise SynapseError(
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@ -156,13 +219,58 @@ class RoomMemberHandler(BaseHandler):
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errcode=Codes.BAD_STATE
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)
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member_handler = self.hs.get_handlers().room_member_handler
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yield member_handler.send_membership_event(
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requester,
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event,
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context,
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is_host_in_room = self.is_host_in_room(current_state)
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if effective_membership_state == Membership.JOIN:
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if requester.is_guest and not self._can_guest_join(current_state):
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# This should be an auth check, but guests are a local concept,
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# so don't really fit into the general auth process.
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raise AuthError(403, "Guest access not allowed")
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if not is_host_in_room:
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inviter = yield self.get_inviter(target.to_string(), room_id)
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if inviter and not self.hs.is_mine(inviter):
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remote_room_hosts.append(inviter.domain)
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content = {"membership": Membership.JOIN}
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if requester.is_guest:
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content["kind"] = "guest"
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ret = yield self.remote_join(
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remote_room_hosts, room_id, target, content
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)
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defer.returnValue(ret)
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elif effective_membership_state == Membership.LEAVE:
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if not is_host_in_room:
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# perhaps we've been invited
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inviter = yield self.get_inviter(target.to_string(), room_id)
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if not inviter:
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raise SynapseError(404, "Not a known room")
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if self.hs.is_mine(inviter):
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# the inviter was on our server, but has now left. Carry on
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# with the normal rejection codepath.
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#
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# This is a bit of a hack, because the room might still be
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# active on other servers.
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pass
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else:
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# send the rejection to the inviter's HS.
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remote_room_hosts = remote_room_hosts + [inviter.domain]
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ret = yield self.reject_remote_invite(
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target.to_string(), room_id, remote_room_hosts
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)
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defer.returnValue(ret)
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yield self._local_membership_update(
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requester=requester,
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target=target,
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room_id=room_id,
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membership=effective_membership_state,
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txn_id=txn_id,
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ratelimit=ratelimit,
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remote_room_hosts=remote_room_hosts,
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prev_event_ids=latest_event_ids,
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)
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@defer.inlineCallbacks
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@ -211,73 +319,19 @@ class RoomMemberHandler(BaseHandler):
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if prev_event is not None:
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return
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action = "send"
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if event.membership == Membership.JOIN:
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if requester.is_guest and not self._can_guest_join(context.current_state):
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# This should be an auth check, but guests are a local concept,
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# so don't really fit into the general auth process.
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raise AuthError(403, "Guest access not allowed")
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do_remote_join_dance, remote_room_hosts = self._should_do_dance(
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context,
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(self.get_inviter(event.state_key, context.current_state)),
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remote_room_hosts,
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)
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if do_remote_join_dance:
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action = "remote_join"
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elif event.membership == Membership.LEAVE:
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is_host_in_room = self.is_host_in_room(context.current_state)
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if not is_host_in_room:
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# perhaps we've been invited
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inviter = self.get_inviter(
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target_user.to_string(), context.current_state
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)
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if not inviter:
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raise SynapseError(404, "Not a known room")
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if self.hs.is_mine(inviter):
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# the inviter was on our server, but has now left. Carry on
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# with the normal rejection codepath.
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#
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# This is a bit of a hack, because the room might still be
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# active on other servers.
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pass
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else:
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# send the rejection to the inviter's HS.
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remote_room_hosts = remote_room_hosts + [inviter.domain]
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action = "remote_reject"
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federation_handler = self.hs.get_handlers().federation_handler
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if action == "remote_join":
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if len(remote_room_hosts) == 0:
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raise SynapseError(404, "No known servers")
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# We don't do an auth check if we are doing an invite
|
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# join dance for now, since we're kinda implicitly checking
|
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# that we are allowed to join when we decide whether or not we
|
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# need to do the invite/join dance.
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yield federation_handler.do_invite_join(
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remote_room_hosts,
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event.room_id,
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event.user_id,
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event.content,
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)
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elif action == "remote_reject":
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yield federation_handler.do_remotely_reject_invite(
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remote_room_hosts,
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room_id,
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event.user_id
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)
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else:
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yield self.handle_new_client_event(
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requester,
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event,
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context,
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extra_users=[target_user],
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ratelimit=ratelimit,
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)
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yield self.handle_new_client_event(
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requester,
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event,
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context,
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extra_users=[target_user],
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ratelimit=ratelimit,
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)
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prev_member_event = context.current_state.get(
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(EventTypes.Member, target_user.to_string()),
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@ -306,11 +360,11 @@ class RoomMemberHandler(BaseHandler):
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and guest_access.content["guest_access"] == "can_join"
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)
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def _should_do_dance(self, context, inviter, room_hosts=None):
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def _should_do_dance(self, current_state, inviter, room_hosts=None):
|
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# TODO: Shouldn't this be remote_room_host?
|
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room_hosts = room_hosts or []
|
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|
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is_host_in_room = self.is_host_in_room(context.current_state)
|
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is_host_in_room = self.is_host_in_room(current_state)
|
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if is_host_in_room:
|
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return False, room_hosts
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@ -344,11 +398,11 @@ class RoomMemberHandler(BaseHandler):
|
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|
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defer.returnValue((RoomID.from_string(room_id), servers))
|
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|
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def get_inviter(self, user_id, current_state):
|
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prev_state = current_state.get((EventTypes.Member, user_id))
|
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if prev_state and prev_state.membership == Membership.INVITE:
|
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return UserID.from_string(prev_state.user_id)
|
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return None
|
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@defer.inlineCallbacks
|
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def get_inviter(self, user_id, room_id):
|
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invite = yield self.store.get_room_member(user_id=user_id, room_id=room_id)
|
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if invite:
|
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defer.returnValue(UserID.from_string(invite.sender))
|
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|
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@defer.inlineCallbacks
|
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def get_joined_rooms_for_user(self, user):
|
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|
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@ -75,7 +75,8 @@ class StateHandler(object):
|
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self._state_cache.start()
|
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|
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@defer.inlineCallbacks
|
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def get_current_state(self, room_id, event_type=None, state_key=""):
|
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def get_current_state(self, room_id, event_type=None, state_key="",
|
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latest_event_ids=None):
|
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""" Retrieves the current state for the room. This is done by
|
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calling `get_latest_events_in_room` to get the leading edges of the
|
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event graph and then resolving any of the state conflicts.
|
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@ -89,9 +90,10 @@ class StateHandler(object):
|
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Returns:
|
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map from (type, state_key) to event
|
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"""
|
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event_ids = yield self.store.get_latest_event_ids_in_room(room_id)
|
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if not latest_event_ids:
|
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latest_event_ids = yield self.store.get_latest_event_ids_in_room(room_id)
|
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|
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res = yield self.resolve_state_groups(room_id, event_ids)
|
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res = yield self.resolve_state_groups(room_id, latest_event_ids)
|
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state = res[1]
|
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|
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if event_type:
|
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|
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@ -163,6 +163,22 @@ class EventFederationStore(SQLBaseStore):
|
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room_id,
|
||||
)
|
||||
|
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@defer.inlineCallbacks
|
||||
def get_max_depth_of_events(self, event_ids):
|
||||
sql = (
|
||||
"SELECT MAX(depth) FROM events WHERE event_id IN (%s)"
|
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) % (",".join(["?"] * len(event_ids)),)
|
||||
|
||||
rows = yield self._execute(
|
||||
"get_max_depth_of_events", None,
|
||||
sql, *event_ids
|
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)
|
||||
|
||||
if rows:
|
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defer.returnValue(rows[0][0])
|
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else:
|
||||
defer.returnValue(1)
|
||||
|
||||
def _get_min_depth_interaction(self, txn, room_id):
|
||||
min_depth = self._simple_select_one_onecol_txn(
|
||||
txn,
|
||||
|
||||
@ -259,8 +259,8 @@ class RoomPermissionsTestCase(RestTestCase):
|
||||
# set [invite/join/left] of self, set [invite/join/left] of other,
|
||||
# expect all 404s because room doesn't exist on any server
|
||||
for usr in [self.user_id, self.rmcreator_id]:
|
||||
yield self.join(room=room, user=usr, expect_code=404)
|
||||
yield self.leave(room=room, user=usr, expect_code=404)
|
||||
yield self.join(room=room, user=usr, expect_code=403)
|
||||
yield self.leave(room=room, user=usr, expect_code=403)
|
||||
|
||||
@defer.inlineCallbacks
|
||||
def test_membership_private_room_perms(self):
|
||||
|
||||
Loading…
Reference in New Issue
Block a user