Merge pull request #385 from matrix-org/daniel/forgetrooms

Allow users to forget rooms
This commit is contained in:
Mark Haines 2015-11-20 18:07:26 +00:00
commit c6a15f5026
6 changed files with 118 additions and 5 deletions

View file

@ -207,6 +207,13 @@ class Auth(object):
user_id, room_id
))
if membership == Membership.LEAVE:
forgot = yield self.store.did_forget(user_id, room_id)
if forgot:
raise AuthError(403, "User %s not in room %s" % (
user_id, room_id
))
defer.returnValue(member)
@defer.inlineCallbacks

View file

@ -92,7 +92,15 @@ class BaseHandler(object):
membership_event = state.get((EventTypes.Member, user_id), None)
if membership_event:
membership = membership_event.membership
was_forgotten_at_event = yield self.store.was_forgotten_at(
membership_event.state_key,
membership_event.room_id,
membership_event.event_id
)
if was_forgotten_at_event:
membership = None
else:
membership = membership_event.membership
else:
membership = None

View file

@ -743,6 +743,9 @@ class RoomMemberHandler(BaseHandler):
)
defer.returnValue((token, public_key, key_validity_url, display_name))
def forget(self, user, room_id):
self.store.forget(user.to_string(), room_id)
class RoomListHandler(BaseHandler):

View file

@ -448,7 +448,7 @@ class RoomMembershipRestServlet(ClientV1RestServlet):
def register(self, http_server):
# /rooms/$roomid/[invite|join|leave]
PATTERN = ("/rooms/(?P<room_id>[^/]*)/"
"(?P<membership_action>join|invite|leave|ban|kick)")
"(?P<membership_action>join|invite|leave|ban|kick|forget)")
register_txn_path(self, PATTERN, http_server)
@defer.inlineCallbacks
@ -458,6 +458,8 @@ class RoomMembershipRestServlet(ClientV1RestServlet):
allow_guest=True
)
effective_membership_action = membership_action
if is_guest and membership_action not in {Membership.JOIN, Membership.LEAVE}:
raise AuthError(403, "Guest access not allowed")
@ -488,11 +490,13 @@ class RoomMembershipRestServlet(ClientV1RestServlet):
UserID.from_string(state_key)
if membership_action == "kick":
membership_action = "leave"
effective_membership_action = "leave"
elif membership_action == "forget":
effective_membership_action = "leave"
msg_handler = self.handlers.message_handler
content = {"membership": unicode(membership_action)}
content = {"membership": unicode(effective_membership_action)}
if is_guest:
content["kind"] = "guest"
@ -509,6 +513,9 @@ class RoomMembershipRestServlet(ClientV1RestServlet):
is_guest=is_guest,
)
if membership_action == "forget":
self.handlers.room_member_handler.forget(user, room_id)
defer.returnValue((200, {}))
def _has_3pid_invite_keys(self, content):

View file

@ -160,7 +160,7 @@ class RoomMemberStore(SQLBaseStore):
def _get_rooms_for_user_where_membership_is_txn(self, txn, user_id,
membership_list):
where_clause = "user_id = ? AND (%s)" % (
where_clause = "user_id = ? AND (%s) AND NOT forgotten" % (
" OR ".join(["membership = ?" for _ in membership_list]),
)
@ -269,3 +269,67 @@ class RoomMemberStore(SQLBaseStore):
ret = len(room_id_lists.pop(0).intersection(*room_id_lists)) > 0
defer.returnValue(ret)
def forget(self, user_id, room_id):
"""Indicate that user_id wishes to discard history for room_id."""
def f(txn):
sql = (
"UPDATE"
" room_memberships"
" SET"
" forgotten = 1"
" WHERE"
" user_id = ?"
" AND"
" room_id = ?"
)
txn.execute(sql, (user_id, room_id))
self.runInteraction("forget_membership", f)
@defer.inlineCallbacks
def did_forget(self, user_id, room_id):
"""Returns whether user_id has elected to discard history for room_id.
Returns False if they have since re-joined."""
def f(txn):
sql = (
"SELECT"
" COUNT(*)"
" FROM"
" room_memberships"
" WHERE"
" user_id = ?"
" AND"
" room_id = ?"
" AND"
" forgotten = 0"
)
txn.execute(sql, (user_id, room_id))
rows = txn.fetchall()
return rows[0][0]
count = yield self.runInteraction("did_forget_membership", f)
defer.returnValue(count == 0)
@defer.inlineCallbacks
def was_forgotten_at(self, user_id, room_id, event_id):
"""Returns whether user_id has elected to discard history for room_id at event_id.
event_id must be a membership event."""
def f(txn):
sql = (
"SELECT"
" forgotten"
" FROM"
" room_memberships"
" WHERE"
" user_id = ?"
" AND"
" room_id = ?"
" AND"
" event_id = ?"
)
txn.execute(sql, (user_id, room_id, event_id))
rows = txn.fetchall()
return rows[0][0]
forgot = yield self.runInteraction("did_forget_membership_at", f)
defer.returnValue(forgot == 1)

View file

@ -0,0 +1,24 @@
/* Copyright 2015 OpenMarket Ltd
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* Keeps track of what rooms users have left and don't want to be able to
* access again.
*
* If all users on this server have left a room, we can delete the room
* entirely.
*/
ALTER TABLE room_memberships ADD COLUMN forgotten INTEGER(1) DEFAULT 0;