Implement initial population of users who share rooms table

synapse/storage/user_directory.py

@@ -16,16 +16,19 @@
 from twisted.internet import defer
 
 from ._base import SQLBaseStore
+
 from synapse.util.caches.descriptors import cached, cachedInlineCallbacks
 from synapse.api.constants import EventTypes, JoinRules
 from synapse.storage.engines import PostgresEngine, Sqlite3Engine
 from synapse.types import get_domain_from_id, get_localpart_from_id
 
 import re
+import logging
+
+logger = logging.getLogger(__name__)
 
 
 class UserDirectoryStore(SQLBaseStore):
-
     @cachedInlineCallbacks(cache_context=True)
     def is_room_world_readable_or_publicly_joinable(self, room_id, cache_context):
         """Check if the room is either world_readable or publically joinable
@@ -281,14 +284,118 @@ class UserDirectoryStore(SQLBaseStore):
             desc="get_users_in_dir_due_to_room",
         )
 
+    @defer.inlineCallbacks
     def get_all_rooms(self):
-        """Get all room_ids we've ever known about
+        """Get all room_ids we've ever known about, in ascending order of "size"
         """
-        return self._simple_select_onecol(
-            table="current_state_events",
-            keyvalues={},
-            retcol="DISTINCT room_id",
-            desc="get_all_rooms",
+        sql = """
+            SELECT room_id FROM current_state_events
+            GROUP BY room_id
+            ORDER BY count(*) ASC
+        """
+        rows = yield self._execute("get_all_rooms", None, sql)
+        defer.returnValue([room_id for room_id, in rows])
+
+    def add_users_who_share_room(self, room_id, share_private, user_id_tuples):
+        """Insert entries into the users_who_share_rooms table. The first
+        user should be a local user.
+
+        Args:
+            room_id (str)
+            share_private (bool): Is the room private
+            user_id_tuples([(str, str)]): iterable of 2-tuple of user IDs.
+        """
+        def _add_users_who_share_room_txn(txn):
+            self._simple_insert_many_txn(
+                txn,
+                table="users_who_share_rooms",
+                values=[
+                    {
+                        "user_id": user_id,
+                        "other_user_id": other_user_id,
+                        "room_id": room_id,
+                        "share_private": share_private,
+                    }
+                    for user_id, other_user_id in user_id_tuples
+                ],
+            )
+            for user_id, other_user_id in user_id_tuples:
+                txn.call_after(
+                    self.get_users_who_share_room_from_dir.invalidate,
+                    (user_id,),
+                )
+                txn.call_after(
+                    self.get_if_users_share_a_room.invalidate,
+                    (user_id, other_user_id),
+                )
+        return self.runInteraction(
+            "add_users_who_share_room", _add_users_who_share_room_txn
+        )
+
+    def update_users_who_share_room(self, room_id, share_private, user_id_sets):
+        """Updates entries in the users_who_share_rooms table. The first
+        user should be a local user.
+
+        Args:
+            room_id (str)
+            share_private (bool): Is the room private
+            user_id_tuples([(str, str)]): iterable of 2-tuple of user IDs.
+        """
+        def _update_users_who_share_room_txn(txn):
+            sql = """
+                UPDATE users_who_share_rooms
+                SET room_id = ?, share_private = ?
+                WHERE user_id = ? AND other_user_id = ?
+            """
+            txn.executemany(
+                sql,
+                (
+                    (room_id, share_private, uid, oid)
+                    for uid, oid in user_id_sets
+                )
+            )
+            for user_id, other_user_id in user_id_sets:
+                txn.call_after(
+                    self.get_users_who_share_room_from_dir.invalidate,
+                    (user_id,),
+                )
+                txn.call_after(
+                    self.get_if_users_share_a_room.invalidate,
+                    (user_id, other_user_id),
+                )
+        return self.runInteraction(
+            "update_users_who_share_room", _update_users_who_share_room_txn
+        )
+
+    def remove_user_who_share_room(self, user_id, other_user_id):
+        """Deletes entries in the users_who_share_rooms table. The first
+        user should be a local user.
+
+        Args:
+            room_id (str)
+            share_private (bool): Is the room private
+            user_id_tuples([(str, str)]): iterable of 2-tuple of user IDs.
+        """
+        def _remove_user_who_share_room_txn(txn):
+            self._simple_delete_txn(
+                txn,
+                table="users_who_share_rooms",
+                keyvalues={
+                    "user_id": user_id,
+                    "other_user_id": other_user_id,
+                },
+            )
+            txn.call_after(
+                self.get_users_who_share_room_from_dir.invalidate,
+                (user_id,),
+            )
+            txn.call_after(
+                self.get_if_users_share_a_room.invalidate,
+                (user_id, other_user_id),
+            )
+
+        return self.runInteraction(
+            "remove_user_who_share_room", _remove_user_who_share_room_txn
         )
 
     def delete_all_from_user_dir(self):
@@ -298,8 +405,11 @@ class UserDirectoryStore(SQLBaseStore):
             txn.execute("DELETE FROM user_directory")
             txn.execute("DELETE FROM user_directory_search")
             txn.execute("DELETE FROM users_in_pubic_room")
+            txn.execute("DELETE FROM users_who_share_rooms")
             txn.call_after(self.get_user_in_directory.invalidate_all)
             txn.call_after(self.get_user_in_public_room.invalidate_all)
+            txn.call_after(self.get_users_who_share_room_from_dir.invalidate_all)
+            txn.call_after(self.get_if_users_share_a_room.invalidate_all)
         return self.runInteraction(
             "delete_all_from_user_dir", _delete_all_from_user_dir_txn
         )