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Allow non-guests to peek on rooms using /events

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Daniel Wagner-Hall 2016-01-20 15:34:07 +00:00 • committed by review.rocks
parent ea5eea2424
commit da417aa56d
8 changed files with 107 additions and 84 deletions
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91
synapse/handlers/message.py
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@ -78,21 +78,20 @@ class MessageHandler(BaseHandler):
defer.returnValue(None)
@defer.inlineCallbacks
def get_messages(self, user_id=None, room_id=None, pagin_config=None,
as_client_event=True, is_guest=False):
def get_messages(self, requester, room_id=None, pagin_config=None,
as_client_event=True):
"""Get messages in a room.
Args:
user_id (str): The user requesting messages.
requester (Requester): The user requesting messages.
room_id (str): The room they want messages from.
pagin_config (synapse.api.streams.PaginationConfig): The pagination
config rules to apply, if any.
as_client_event (bool): True to get events in client-server format.
is_guest (bool): Whether the requesting user is a guest (as opposed
to a fully registered user).
Returns:
dict: Pagination API results
"""
user_id = requester.user.to_string()
data_source = self.hs.get_event_sources().sources["room"]
if pagin_config.from_token:
@ -115,36 +114,33 @@ class MessageHandler(BaseHandler):
source_config = pagin_config.get_source_config("room")
if not is_guest:
member_event = yield self.auth.check_user_was_in_room(room_id, user_id)
if member_event.membership == Membership.LEAVE:
# If they have left the room then clamp the token to be before
# they left the room.
# If they're a guest, we'll just 403 them if they're asking for
# events they can't see.
leave_token = yield self.store.get_topological_token_for_event(
member_event.event_id
)
leave_token = RoomStreamToken.parse(leave_token)
if leave_token.topological < room_token.topological:
source_config.from_key = str(leave_token)
membership, member_event_id = yield self._check_in_room_or_world_readable(
room_id, user_id
)
if membership == Membership.LEAVE:
# If they have left the room then clamp the token to be before
# they left the room.
leave_token = yield self.store.get_topological_token_for_event(
member_event_id
)
leave_token = RoomStreamToken.parse(leave_token)
if leave_token.topological < room_token.topological:
source_config.from_key = str(leave_token)
if source_config.direction == "f":
if source_config.to_key is None:
if source_config.direction == "f":
if source_config.to_key is None:
source_config.to_key = str(leave_token)
else:
to_token = RoomStreamToken.parse(source_config.to_key)
if leave_token.topological < to_token.topological:
source_config.to_key = str(leave_token)
else:
to_token = RoomStreamToken.parse(source_config.to_key)
if leave_token.topological < to_token.topological:
source_config.to_key = str(leave_token)
yield self.hs.get_handlers().federation_handler.maybe_backfill(
room_id, room_token.topological
)
user = UserID.from_string(user_id)
events, next_key = yield data_source.get_pagination_rows(
user, source_config, room_id
requester.user, source_config, room_id
)
next_token = pagin_config.from_token.copy_and_replace(
@ -158,7 +154,11 @@ class MessageHandler(BaseHandler):
"end": next_token.to_string(),
})
events = yield self._filter_events_for_client(user_id, events, is_guest=is_guest)
events = yield self._filter_events_for_client(
user_id,
events,
is_peeking=(member_event_id is None),
)
time_now = self.clock.time_msec()
@ -289,7 +289,7 @@ class MessageHandler(BaseHandler):
SynapseError if something went wrong.
"""
membership, membership_event_id = yield self._check_in_room_or_world_readable(
room_id, user_id, is_guest
room_id, user_id
)
if membership == Membership.JOIN:
@ -306,7 +306,7 @@ class MessageHandler(BaseHandler):
defer.returnValue(data)
@defer.inlineCallbacks
def _check_in_room_or_world_readable(self, room_id, user_id, is_guest):
def _check_in_room_or_world_readable(self, room_id, user_id):
try:
# check_user_was_in_room will return the most recent membership
# event for the user if:
@ -316,7 +316,7 @@ class MessageHandler(BaseHandler):
member_event = yield self.auth.check_user_was_in_room(room_id, user_id)
defer.returnValue((member_event.membership, member_event.event_id))
return
except AuthError, auth_error:
except AuthError:
visibility = yield self.state_handler.get_current_state(
room_id, EventTypes.RoomHistoryVisibility, ""
)
@ -326,8 +326,6 @@ class MessageHandler(BaseHandler):
):
defer.returnValue((Membership.JOIN, None))
return
if not is_guest:
raise auth_error
raise AuthError(
403, "Guest access not allowed", errcode=Codes.GUEST_ACCESS_FORBIDDEN
)
@ -345,7 +343,7 @@ class MessageHandler(BaseHandler):
A list of dicts representing state events. [{}, {}, {}]
"""
membership, membership_event_id = yield self._check_in_room_or_world_readable(
room_id, user_id, is_guest
room_id, user_id
)
if membership == Membership.JOIN:
@ -556,13 +554,13 @@ class MessageHandler(BaseHandler):
defer.returnValue(ret)
@defer.inlineCallbacks
def room_initial_sync(self, user_id, room_id, pagin_config=None, is_guest=False):
def room_initial_sync(self, requester, room_id, pagin_config=None):
"""Capture the a snapshot of a room. If user is currently a member of
the room this will be what is currently in the room. If the user left
the room this will be what was in the room when they left.
Args:
user_id(str): The user to get a snapshot for.
requester(Requester): The user to get a snapshot for.
room_id(str): The room to get a snapshot of.
pagin_config(synapse.streams.config.PaginationConfig):
The pagination config used to determine how many messages to
@ -573,19 +571,20 @@ class MessageHandler(BaseHandler):
A JSON serialisable dict with the snapshot of the room.
"""
user_id = requester.user.to_string()
membership, member_event_id = yield self._check_in_room_or_world_readable(
room_id,
user_id,
is_guest
room_id, user_id,
)
is_peeking = member_event_id is None
if membership == Membership.JOIN:
result = yield self._room_initial_sync_joined(
user_id, room_id, pagin_config, membership, is_guest
user_id, room_id, pagin_config, membership, is_peeking
)
elif membership == Membership.LEAVE:
result = yield self._room_initial_sync_parted(
user_id, room_id, pagin_config, membership, member_event_id, is_guest
user_id, room_id, pagin_config, membership, member_event_id, is_peeking
)
account_data_events = []
@ -609,7 +608,7 @@ class MessageHandler(BaseHandler):
@defer.inlineCallbacks
def _room_initial_sync_parted(self, user_id, room_id, pagin_config,
membership, member_event_id, is_guest):
membership, member_event_id, is_peeking):
room_state = yield self.store.get_state_for_events(
[member_event_id], None
)
@ -631,7 +630,7 @@ class MessageHandler(BaseHandler):
)
messages = yield self._filter_events_for_client(
user_id, messages, is_guest=is_guest
user_id, messages, is_peeking=is_peeking
)
start_token = StreamToken(token[0], 0, 0, 0, 0)
@ -654,7 +653,7 @@ class MessageHandler(BaseHandler):
@defer.inlineCallbacks
def _room_initial_sync_joined(self, user_id, room_id, pagin_config,
membership, is_guest):
membership, is_peeking):
current_state = yield self.state.get_current_state(
room_id=room_id,
)
@ -718,7 +717,7 @@ class MessageHandler(BaseHandler):
).addErrback(unwrapFirstError)
messages = yield self._filter_events_for_client(
user_id, messages, is_guest=is_guest,
user_id, messages, is_peeking=is_peeking,
)
start_token = now_token.copy_and_replace("room_key", token[0])
@ -737,7 +736,7 @@ class MessageHandler(BaseHandler):
"presence": presence,
"receipts": receipts,
}
if not is_guest:
if not is_peeking:
ret["membership"] = membership
defer.returnValue(ret)