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Some cleanup 

I'm not particularly happy with the "action" switching, but there's no
convenient way to defer the work that needs to happen after it, so... :(
This commit is contained in:
Daniel Wagner-Hall 2016-02-17 15:50:13 +00:00
parent a4e278bfe7
commit 591af2d074
2 changed files with 59 additions and 67 deletions
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120
synapse/handlers/room.py
View File

@ -397,7 +397,7 @@ class RoomMemberHandler(BaseHandler):
room_id,
action,
txn_id=None,
room_hosts=None,
remote_room_hosts=None,
ratelimit=True,
):
effective_membership_state = action
@ -448,7 +448,7 @@ class RoomMemberHandler(BaseHandler):
context,
is_guest=requester.is_guest,
ratelimit=ratelimit,
room_hosts=room_hosts,
remote_room_hosts=remote_room_hosts,
from_client=True,
)
@ -461,11 +461,12 @@ class RoomMemberHandler(BaseHandler):
event,
context,
is_guest=False,
room_hosts=None,
remote_room_hosts=None,
ratelimit=True,
from_client=True,
):
""" Change the membership status of a user in a room.
"""
Change the membership status of a user in a room.
Args:
event (SynapseEvent): The membership event.
@ -482,78 +483,64 @@ class RoomMemberHandler(BaseHandler):
Raises:
SynapseError if there was a problem changing the membership.
"""
user = UserID.from_string(event.sender)
target_user = UserID.from_string(event.state_key)
room_id = event.room_id
if from_client:
assert self.hs.is_mine(user), "User must be our own: %s" % (user,)
sender = UserID.from_string(event.sender)
assert self.hs.is_mine(sender), "Sender must be our own: %s" % (sender,)
if event.is_state():
message_handler = self.hs.get_handlers().message_handler
prev_state = message_handler.deduplicate_state_event(event, context)
if prev_state is not None:
prev_event = message_handler.deduplicate_state_event(event, context)
if prev_event is not None:
return
target_user = UserID.from_string(event.state_key)
prev_state = context.current_state.get(
(EventTypes.Member, target_user.to_string()),
None
)
room_id = event.room_id
handled = False
action = "send"
if event.membership == Membership.JOIN:
if is_guest and not self._can_guest_join(context.current_state):
# This should be an auth check, but guests are a local concept,
# so don't really fit into the general auth process.
raise AuthError(403, "Guest access not allowed")
should_do_dance, room_hosts = self._should_do_dance(
do_remote_join_dance, remote_room_hosts = self._should_do_dance(
context,
(self.get_inviter(target_user.to_string(), context.current_state)),
room_hosts,
(self.get_inviter(event.state_key, context.current_state)),
remote_room_hosts,
)
if should_do_dance:
if len(room_hosts) == 0:
# return the same error as join_room_alias does
raise SynapseError(404, "No known servers")
# We don't do an auth check if we are doing an invite
# join dance for now, since we're kinda implicitly checking
# that we are allowed to join when we decide whether or not we
# need to do the invite/join dance.
yield self.hs.get_handlers().federation_handler.do_invite_join(
room_hosts,
room_id,
event.user_id,
event.content,
)
handled = True
if event.membership == Membership.LEAVE:
if do_remote_join_dance:
action = "remote_join"
elif event.membership == Membership.LEAVE:
is_host_in_room = self.is_host_in_room(context.current_state)
if not is_host_in_room:
# Rejecting an invite, rather than leaving a joined room
handler = self.hs.get_handlers().federation_handler
inviter = self.get_inviter(target_user.to_string(), context.current_state)
if not inviter:
# return the same error as join_room_alias does
raise SynapseError(404, "No known servers")
yield handler.do_remotely_reject_invite(
[inviter.domain],
room_id,
event.user_id
)
handled = True
action = "remote_reject"
# FIXME: This isn't idempotency.
if prev_state and prev_state.membership == event.membership:
# double same action, treat this event as a NOOP.
return
federation_handler = self.hs.get_handlers().federation_handler
if not handled:
if action == "remote_join":
if len(remote_room_hosts) == 0:
raise SynapseError(404, "No known servers")
# We don't do an auth check if we are doing an invite
# join dance for now, since we're kinda implicitly checking
# that we are allowed to join when we decide whether or not we
# need to do the invite/join dance.
yield federation_handler.do_invite_join(
remote_room_hosts,
event.room_id,
event.user_id,
event.content,
)
elif action == "remote_reject":
inviter = self.get_inviter(target_user.to_string(), context.current_state)
if not inviter:
raise SynapseError(404, "No known servers")
yield federation_handler.do_remotely_reject_invite(
[inviter.domain],
room_id,
event.user_id
)
else:
yield self.handle_new_client_event(
event,
context,
@ -561,14 +548,19 @@ class RoomMemberHandler(BaseHandler):
ratelimit=ratelimit,
)
prev_member_event = context.current_state.get(
(EventTypes.Member, target_user.to_string()),
None
)
if event.membership == Membership.JOIN:
if not prev_state or prev_state.membership != Membership.JOIN:
if not prev_member_event or prev_member_event.membership != Membership.JOIN:
# Only fire user_joined_room if the user has acutally joined the
# room. Don't bother if the user is just changing their profile
# info.
yield user_joined_room(self.distributor, target_user, room_id)
elif event.membership == Membership.LEAVE:
if prev_state and prev_state.membership == Membership.JOIN:
if prev_member_event and prev_member_event.membership == Membership.JOIN:
user_left_room(self.distributor, target_user, room_id)
def _can_guest_join(self, current_state):
@ -604,7 +596,9 @@ class RoomMemberHandler(BaseHandler):
Args:
room_alias (RoomAlias): The alias to look up.
Returns:
The room ID as a RoomID object.
A tuple of:
The room ID as a RoomID object.
Hosts likely to be participating in the room ([str]).
Raises:
SynapseError if room alias could not be found.
"""
@ -615,11 +609,9 @@ class RoomMemberHandler(BaseHandler):
raise SynapseError(404, "No such room alias")
room_id = mapping["room_id"]
hosts = mapping["servers"]
if not hosts:
raise SynapseError(404, "No known servers")
servers = mapping["servers"]
defer.returnValue((RoomID.from_string(room_id), hosts))
defer.returnValue((RoomID.from_string(room_id), servers))
def get_inviter(self, user_id, current_state):
prev_state = current_state.get((EventTypes.Member, user_id))

6
synapse/rest/client/v1/room.py
View File

@ -230,11 +230,11 @@ class JoinRoomAliasServlet(ClientV1RestServlet):
if RoomID.is_valid(room_identifier):
room_id = room_identifier
room_hosts = None
remote_room_hosts = None
elif RoomAlias.is_valid(room_identifier):
handler = self.handlers.room_member_handler
room_alias = RoomAlias.from_string(room_identifier)
room_id, room_hosts = yield handler.lookup_room_alias(room_alias)
room_id, remote_room_hosts = yield handler.lookup_room_alias(room_alias)
room_id = room_id.to_string()
else:
raise SynapseError(400, "%s was not legal room ID or room alias" % (
@ -247,7 +247,7 @@ class JoinRoomAliasServlet(ClientV1RestServlet):
room_id=room_id,
action="join",
txn_id=txn_id,
room_hosts=room_hosts,
remote_room_hosts=remote_room_hosts,
)
defer.returnValue((200, {"room_id": room_id}))