From 4564b05483c8568b5435cfc527a73a6a7696fa61 Mon Sep 17 00:00:00 2001 From: Erik Johnston Date: Thu, 15 Jun 2017 10:15:00 +0100 Subject: Implement updating users who share rooms on the fly --- synapse/handlers/user_directory.py | 148 +++++++++++++++++++++++++++++++------ synapse/storage/user_directory.py | 111 +++++++++++++++++++++++++++- 2 files changed, 235 insertions(+), 24 deletions(-) diff --git a/synapse/handlers/user_directory.py b/synapse/handlers/user_directory.py index 581c078bb2..aa8af95177 100644 --- a/synapse/handlers/user_directory.py +++ b/synapse/handlers/user_directory.py @@ -390,12 +390,77 @@ class UserDirectoyHandler(object): room_id ) - if not is_public: - return + if is_public: + row = yield self.store.get_user_in_public_room(user_id) + if not row: + yield self.store.add_users_to_public_room(room_id, [user_id]) - row = yield self.store.get_user_in_public_room(user_id) - if not row: - yield self.store.add_users_to_public_room(room_id, [user_id]) + # Now we update users who share rooms with users. We do this by getting + # all the current users in the room and seeing which aren't already + # marked in the database as sharing with `user_id` + + users_with_profile = yield self.state.get_current_user_in_room(room_id) + + to_insert = set() + to_update = set() + + # First, if they're our user then we need to update for every user + if self.is_mine_id(user_id): + # Returns a map of other_user_id -> shared_private. We only need + # to update mappings if for users that either don't share a room + # already (aren't in the map) or, if the room is private, those that + # only share a public room. + user_ids_shared = yield self.store.get_users_who_share_room_from_dir( + user_id + ) + + for other_user_id in users_with_profile: + if user_id == other_user_id: + continue + + shared_is_private = user_ids_shared.get(other_user_id) + if shared_is_private is True: + # We've already marked in the database they share a private room + continue + elif shared_is_private is False: + # They already share a public room, so only update if this is + # a private room + if not is_public: + to_update.add((user_id, other_user_id)) + elif shared_is_private is None: + # This is the first time they both share a room + to_insert.add((user_id, other_user_id)) + + # Next we need to update for every local user in the room + for other_user_id in users_with_profile: + if user_id == other_user_id: + continue + + if self.is_mine_id(other_user_id): + shared_is_private = yield self.store.get_if_users_share_a_room( + other_user_id, user_id, + ) + if shared_is_private is True: + # We've already marked in the database they share a private room + continue + elif shared_is_private is False: + # They already share a public room, so only update if this is + # a private room + if not is_public: + to_update.add((other_user_id, user_id)) + elif shared_is_private is None: + # This is the first time they both share a room + to_insert.add((other_user_id, user_id)) + + if to_insert: + yield self.store.add_users_who_share_room( + room_id, not is_public, to_insert, + ) + + if to_update: + yield self.store.update_users_who_share_room( + room_id, not is_public, to_update, + ) @defer.inlineCallbacks def _handle_remove_user(self, room_id, user_id): @@ -413,32 +478,29 @@ class UserDirectoyHandler(object): row = yield self.store.get_user_in_public_room(user_id) update_user_in_public = row and row["room_id"] == room_id - if not update_user_in_public and not update_user_dir: - return - - # XXX: Make this faster? - rooms = yield self.store.get_rooms_for_user(user_id) - for j_room_id in rooms: - if not update_user_in_public and not update_user_dir: - break + if (update_user_in_public or update_user_dir): + # XXX: Make this faster? + rooms = yield self.store.get_rooms_for_user(user_id) + for j_room_id in rooms: + if (not update_user_in_public and not update_user_dir): + break - is_in_room = yield self.store.is_host_joined( - j_room_id, self.server_name, - ) + is_in_room = yield self.store.is_host_joined( + j_room_id, self.server_name, + ) - if not is_in_room: - continue + if not is_in_room: + continue - if update_user_dir: - update_user_dir = False - yield self.store.update_user_in_user_dir(user_id, j_room_id) + if update_user_dir: + update_user_dir = False + yield self.store.update_user_in_user_dir(user_id, j_room_id) - if update_user_in_public: is_public = yield self.store.is_room_world_readable_or_publicly_joinable( j_room_id ) - if is_public: + if update_user_in_public and is_public: yield self.store.update_user_in_public_user_list(user_id, j_room_id) update_user_in_public = False @@ -447,6 +509,46 @@ class UserDirectoyHandler(object): elif update_user_in_public: yield self.store.remove_from_user_in_public_room(user_id) + # Now handle users_who_share_rooms. + + # Get a list of user tuples that were in the DB due to this room and + # users (this includes tuples where the other user matches `user_id`) + user_tuples = yield self.store.get_users_in_share_dir_with_room_id( + user_id, room_id, + ) + + for user_id, other_user_id in user_tuples: + # For each user tuple get a list of rooms that they still share, + # trying to find a private room, and update the entry in the DB + rooms = yield self.store.get_rooms_in_common_for_users(user_id, other_user_id) + + # If they dont share a room anymore, remove the mapping + if not rooms: + yield self.store.remove_user_who_share_room( + user_id, other_user_id, + ) + continue + + found_public_share = None + for j_room_id in rooms: + is_public = yield self.store.is_room_world_readable_or_publicly_joinable( + j_room_id + ) + + if is_public: + found_public_share = j_room_id + else: + found_public_share = None + yield self.store.update_users_who_share_room( + room_id, not is_public, [(user_id, other_user_id)], + ) + break + + if found_public_share: + yield self.store.update_users_who_share_room( + room_id, not is_public, [(user_id, other_user_id)], + ) + @defer.inlineCallbacks def _handle_profile_change(self, user_id, room_id, prev_event_id, event_id): """Check member event changes for any profile changes and update the diff --git a/synapse/storage/user_directory.py b/synapse/storage/user_directory.py index 0123e28f99..2a17cbc9e9 100644 --- a/synapse/storage/user_directory.py +++ b/synapse/storage/user_directory.py @@ -273,17 +273,38 @@ class UserDirectoryStore(SQLBaseStore): desc="get_users_in_public_due_to_room", ) + @defer.inlineCallbacks def get_users_in_dir_due_to_room(self, room_id): """Get all user_ids that are in the room directory becuase they're in the given room_id """ - return self._simple_select_onecol( + user_ids_dir = yield self._simple_select_onecol( table="user_directory", keyvalues={"room_id": room_id}, retcol="user_id", desc="get_users_in_dir_due_to_room", ) + user_ids_pub = yield self._simple_select_onecol( + table="users_in_pubic_room", + keyvalues={"room_id": room_id}, + retcol="user_id", + desc="get_users_in_dir_due_to_room", + ) + + user_ids_share = yield self._simple_select_onecol( + table="users_who_share_rooms", + keyvalues={"room_id": room_id}, + retcol="user_id", + desc="get_users_in_dir_due_to_room", + ) + + user_ids = set(user_ids_dir) + user_ids.update(user_ids_pub) + user_ids.update(user_ids_share) + + defer.returnValue(user_ids) + @defer.inlineCallbacks def get_all_rooms(self): """Get all room_ids we've ever known about, in ascending order of "size" @@ -398,6 +419,94 @@ class UserDirectoryStore(SQLBaseStore): "remove_user_who_share_room", _remove_user_who_share_room_txn ) + @cached(max_entries=500000) + def get_if_users_share_a_room(self, user_id, other_user_id): + """Gets if users share a room. + + Args: + user_id (str): Must be a local user_id + other_user_id (str) + + Returns: + bool|None: None if they don't share a room, otherwise whether they + share a private room or not. + """ + return self._simple_select_one_onecol( + table="users_who_share_rooms", + keyvalues={ + "user_id": user_id, + "other_user_id": other_user_id, + }, + retcol="share_private", + allow_none=True, + ) + + @cachedInlineCallbacks(max_entries=500000, iterable=True) + def get_users_who_share_room_from_dir(self, user_id): + """Returns the set of users who share a room with `user_id` + + Args: + user_id(str): Must be a local user + + Returns: + dict: user_id -> share_private mapping + """ + rows = yield self._simple_select_list( + table="users_who_share_rooms", + keyvalues={ + "user_id": user_id, + }, + retcols=("other_user_id", "share_private",), + desc="get_users_who_share_room_with_user", + ) + + defer.returnValue({ + row["other_user_id"]: row["share_private"] + for row in rows + }) + + def get_users_in_share_dir_with_room_id(self, user_id, room_id): + """Get all user tuples that are in the users_who_share_rooms due to the + given room_id. + + Returns: + [(user_id, other_user_id)]: where one of the two will match the given + user_id. + """ + sql = """ + SELECT user_id, other_user_id FROM users_who_share_rooms + WHERE room_id = ? AND (user_id = ? OR other_user_id = ?) + """ + return self._execute( + "get_users_in_share_dir_with_room_id", None, sql, room_id, user_id, user_id + ) + + @defer.inlineCallbacks + def get_rooms_in_common_for_users(self, user_id, other_user_id): + """Given two user_ids find out the list of rooms they share. + """ + sql = """ + SELECT room_id FROM ( + SELECT c.room_id FROM current_state_events AS c + INNER JOIN room_memberships USING (event_id) + WHERE type = 'm.room.member' + AND membership = 'join' + AND state_key = ? + ) AS f1 INNER JOIN ( + SELECT c.room_id FROM current_state_events AS c + INNER JOIN room_memberships USING (event_id) + WHERE type = 'm.room.member' + AND membership = 'join' + AND state_key = ? + ) f2 USING (room_id) + """ + + rows = yield self._execute( + "get_rooms_in_common_for_users", None, sql, user_id, other_user_id + ) + + defer.returnValue([room_id for room_id, in rows]) + def delete_all_from_user_dir(self): """Delete the entire user directory """ -- cgit 1.4.1