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Add allow_departed_users param to check_in_room_or_world_readable

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... and set it everywhere it's called.

while we're here, rename it for consistency with `check_user_in_room` (and to
help check that I haven't missed any instances)
This commit is contained in:
Richard van der Hoff 2020-02-18 23:14:57 +00:00
parent b58d17e44f
commit a0a1fd0bec
5 changed files with 33 additions and 15 deletions
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16
synapse/api/auth.py
View File

@ -625,10 +625,18 @@ class Auth(object):
return query_params[0].decode("ascii")
@defer.inlineCallbacks
def check_in_room_or_world_readable(self, room_id, user_id):
def check_user_in_room_or_world_readable(
self, room_id: str, user_id: str, allow_departed_users: bool = False
):
"""Checks that the user is or was in the room or the room is world
readable. If it isn't then an exception is raised.
Args:
room_id: room to check
user_id: user to check
allow_departed_users: if True, accept users that were previously
members but have now departed
Returns:
Deferred[tuple[str, str|None]]: Resolves to the current membership of
the user in the room and the membership event ID of the user. If
@ -643,7 +651,7 @@ class Auth(object):
# * The user is a guest user, and has joined the room
# else it will throw.
member_event = yield self.check_user_in_room(
room_id, user_id, allow_departed_users=True
room_id, user_id, allow_departed_users=allow_departed_users
)
return member_event.membership, member_event.event_id
except AuthError:
@ -656,7 +664,9 @@ class Auth(object):
):
return Membership.JOIN, None
raise AuthError(
403, "Guest access not allowed", errcode=Codes.GUEST_ACCESS_FORBIDDEN
403,
"User %s not in room %s, and room previews are disabled"
% (user_id, room_id),
)
@defer.inlineCallbacks

4
synapse/handlers/initial_sync.py
View File

@ -277,7 +277,9 @@ class InitialSyncHandler(BaseHandler):
(
membership,
member_event_id,
) = await self.auth.check_user_in_room_or_world_readable(room_id, user_id)
) = await self.auth.check_user_in_room_or_world_readable(
room_id, user_id, allow_departed_users=True,
)
is_peeking = member_event_id is None
if membership == Membership.JOIN:

12
synapse/handlers/message.py
View File

@ -99,7 +99,9 @@ class MessageHandler(object):
(
membership,
membership_event_id,
) = yield self.auth.check_in_room_or_world_readable(room_id, user_id)
) = yield self.auth.check_user_in_room_or_world_readable(
room_id, user_id, allow_departed_users=True
)
if membership == Membership.JOIN:
data = yield self.state.get_current_state(room_id, event_type, state_key)
@ -177,7 +179,9 @@ class MessageHandler(object):
(
membership,
membership_event_id,
) = yield self.auth.check_in_room_or_world_readable(room_id, user_id)
) = yield self.auth.check_user_in_room_or_world_readable(
room_id, user_id, allow_departed_users=True
)
if membership == Membership.JOIN:
state_ids = yield self.store.get_filtered_current_state_ids(
@ -216,8 +220,8 @@ class MessageHandler(object):
if not requester.app_service:
# We check AS auth after fetching the room membership, as it
# requires us to pull out all joined members anyway.
membership, _ = yield self.auth.check_in_room_or_world_readable(
room_id, user_id
membership, _ = yield self.auth.check_user_in_room_or_world_readable(
room_id, user_id, allow_departed_users=True
)
if membership != Membership.JOIN:
raise NotImplementedError(

4
synapse/handlers/pagination.py
View File

@ -335,7 +335,9 @@ class PaginationHandler(object):
(
membership,
member_event_id,
) = await self.auth.check_in_room_or_world_readable(room_id, user_id)
) = await self.auth.check_user_in_room_or_world_readable(
room_id, user_id, allow_departed_users=True
)
if source_config.direction == "b":
# if we're going backwards, we might need to backfill. This

12
synapse/rest/client/v2_alpha/relations.py
View File

@ -142,8 +142,8 @@ class RelationPaginationServlet(RestServlet):
):
requester = await self.auth.get_user_by_req(request, allow_guest=True)
await self.auth.check_in_room_or_world_readable(
room_id, requester.user.to_string()
await self.auth.check_user_in_room_or_world_readable(
room_id, requester.user.to_string(), allow_departed_users=True
)
# This gets the original event and checks that a) the event exists and
@ -235,8 +235,8 @@ class RelationAggregationPaginationServlet(RestServlet):
):
requester = await self.auth.get_user_by_req(request, allow_guest=True)
await self.auth.check_in_room_or_world_readable(
room_id, requester.user.to_string()
await self.auth.check_user_in_room_or_world_readable(
room_id, requester.user.to_string(), allow_departed_users=True,
)
# This checks that a) the event exists and b) the user is allowed to
@ -313,8 +313,8 @@ class RelationAggregationGroupPaginationServlet(RestServlet):
async def on_GET(self, request, room_id, parent_id, relation_type, event_type, key):
requester = await self.auth.get_user_by_req(request, allow_guest=True)
await self.auth.check_in_room_or_world_readable(
room_id, requester.user.to_string()
await self.auth.check_user_in_room_or_world_readable(
room_id, requester.user.to_string(), allow_departed_users=True,
)
# This checks that a) the event exists and b) the user is allowed to