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-rw-r--r--synapse/handlers/user_directory.py77
-rw-r--r--synapse/storage/_base.py5
-rw-r--r--synapse/storage/schema/delta/42/user_dir.py10
-rw-r--r--synapse/storage/user_directory.py77
4 files changed, 138 insertions, 31 deletions
diff --git a/synapse/handlers/user_directory.py b/synapse/handlers/user_directory.py
index a8525fc86a..d795a9f8d5 100644
--- a/synapse/handlers/user_directory.py
+++ b/synapse/handlers/user_directory.py
@@ -50,6 +50,7 @@ class UserDirectoyHandler(object):
         # When start up for the first time we need to populate the user_directory.
         # This is a set of user_id's we've inserted already
         self.initially_handled_users = set()
+        self.initially_handled_users_in_public = set()
 
         # The current position in the current_state_delta stream
         self.pos = None
@@ -145,8 +146,6 @@ class UserDirectoyHandler(object):
             return
 
         is_public = yield self.store.is_room_world_readable_or_publicly_joinable(room_id)
-        if not is_public:
-            return
 
         users_with_profile = yield self.state.get_current_user_in_room(room_id)
         unhandled_users = set(users_with_profile) - self.initially_handled_users
@@ -159,6 +158,13 @@ class UserDirectoyHandler(object):
 
         self.initially_handled_users |= unhandled_users
 
+        if is_public:
+            yield self.store.add_users_to_public_room(
+                room_id,
+                user_ids=unhandled_users - self.initially_handled_users_in_public
+            )
+            self.initially_handled_users_in_public != unhandled_users
+
     @defer.inlineCallbacks
     def _handle_deltas(self, deltas):
         """Called with the state deltas to process
@@ -206,14 +212,7 @@ class UserDirectoyHandler(object):
                     else:
                         logger.debug("Server is still in room: %r", room_id)
 
-                is_public = yield self.store.is_room_world_readable_or_publicly_joinable(
-                    room_id
-                )
-
                 if change:  # The user joined
-                    if not is_public:
-                        return
-
                     event = yield self.store.get_event(event_id)
                     profile = ProfileInfo(
                         avatar_url=event.content.get("avatar_url"),
@@ -276,11 +275,13 @@ class UserDirectoyHandler(object):
             # ignore the change
             return
 
-        users_with_profile = yield self.state.get_current_user_in_room(room_id)
-        for user_id, profile in users_with_profile.iteritems():
-            if change:
+        if change:
+            users_with_profile = yield self.state.get_current_user_in_room(room_id)
+            for user_id, profile in users_with_profile.iteritems():
                 yield self._handle_new_user(room_id, user_id, profile)
-            else:
+        else:
+            users = yield self.store.get_users_in_public_due_to_room(room_id)
+            for user_id in users:
                 yield self._handle_remove_user(room_id, user_id)
 
     @defer.inlineCallbacks
@@ -292,11 +293,21 @@ class UserDirectoyHandler(object):
             user_id (str)
         """
         logger.debug("Adding user to dir, %r", user_id)
+
         row = yield self.store.get_user_in_directory(user_id)
-        if row:
+        if not row:
+            yield self.store.add_profiles_to_user_dir(room_id, {user_id: profile})
+
+        is_public = yield self.store.is_room_world_readable_or_publicly_joinable(
+            room_id
+        )
+
+        if not is_public:
             return
 
-        yield self.store.add_profiles_to_user_dir(room_id, {user_id: profile})
+        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])
 
     @defer.inlineCallbacks
     def _handle_remove_user(self, room_id, user_id):
@@ -309,15 +320,20 @@ class UserDirectoyHandler(object):
         logger.debug("Maybe removing user %r", user_id)
 
         row = yield self.store.get_user_in_directory(user_id)
-        if not row or row["room_id"] != room_id:
-            # Either the user wasn't in directory or we're still in a room that
-            # is public (i.e. the room_id in the database)
-            logger.debug("Not removing as row: %r", row)
+        update_user_dir = row and row["room_id"] == room_id
+
+        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
+
             is_in_room = yield self.state.get_is_host_in_room(
                 j_room_id, self.server_name,
             )
@@ -325,16 +341,23 @@ class UserDirectoyHandler(object):
             if not is_in_room:
                 continue
 
-            is_public = yield self.store.is_room_world_readable_or_publicly_joinable(
-                j_room_id
-            )
-
-            if is_public:
+            if update_user_dir:
+                update_user_dir = False
                 yield self.store.update_user_in_user_dir(user_id, j_room_id)
-                logger.debug("Not removing as found other public room: %r", j_room_id)
-                return
 
-        yield self.store.remove_from_user_dir(user_id)
+            if update_user_in_public:
+                is_public = yield self.store.is_room_world_readable_or_publicly_joinable(
+                    j_room_id
+                )
+
+                if is_public:
+                    yield self.store.update_user_in_public_user_list(user_id, j_room_id)
+                    update_user_in_public = False
+
+        if update_user_dir:
+            yield self.store.remove_from_user_dir(user_id)
+        elif update_user_in_public:
+            yield self.store.remove_from_user_in_public_room(user_id)
 
     @defer.inlineCallbacks
     def _get_key_change(self, prev_event_id, event_id, key_name, public_value):
diff --git a/synapse/storage/_base.py b/synapse/storage/_base.py
index 58b73af7d2..db816346f5 100644
--- a/synapse/storage/_base.py
+++ b/synapse/storage/_base.py
@@ -425,6 +425,11 @@ class SQLBaseStore(object):
 
         txn.execute(sql, vals)
 
+    def _simple_insert_many(self, table, values, desc):
+        return self.runInteraction(
+            desc, self._simple_insert_many_txn, table, values
+        )
+
     @staticmethod
     def _simple_insert_many_txn(txn, table, values):
         if not values:
diff --git a/synapse/storage/schema/delta/42/user_dir.py b/synapse/storage/schema/delta/42/user_dir.py
index c34aa5e7d2..ea6a18196d 100644
--- a/synapse/storage/schema/delta/42/user_dir.py
+++ b/synapse/storage/schema/delta/42/user_dir.py
@@ -31,13 +31,21 @@ INSERT INTO user_directory_stream_pos (stream_id) VALUES (null);
 
 CREATE TABLE user_directory (
     user_id TEXT NOT NULL,
-    room_id TEXT NOT NULL,  -- A room_id that we know is public
+    room_id TEXT NOT NULL,  -- A room_id that we know the user is joined to
     display_name TEXT,
     avatar_url TEXT
 );
 
 CREATE INDEX user_directory_room_idx ON user_directory(room_id);
 CREATE UNIQUE INDEX user_directory_user_idx ON user_directory(user_id);
+
+CREATE TABLE users_in_pubic_room (
+    user_id TEXT NOT NULL,
+    room_id TEXT NOT NULL  -- A room_id that we know is public
+);
+
+CREATE INDEX users_in_pubic_room_room_idx ON users_in_pubic_room(room_id);
+CREATE UNIQUE INDEX users_in_pubic_room_user_idx ON users_in_pubic_room(user_id);
 """
 
 
diff --git a/synapse/storage/user_directory.py b/synapse/storage/user_directory.py
index 4fe30ce72e..cab0afc5c3 100644
--- a/synapse/storage/user_directory.py
+++ b/synapse/storage/user_directory.py
@@ -50,12 +50,34 @@ class UserDirectoryStore(SQLBaseStore):
 
         defer.returnValue(False)
 
-    def add_profiles_to_user_dir(self, room_id, users_with_profile):
-        """Add profiles to the user directory
+    @defer.inlineCallbacks
+    def add_users_to_public_room(self, room_id, user_ids):
+        """Add user to the list of users in public rooms
 
         Args:
             room_id (str): A room_id that all users are in that is world_readable
                 or publically joinable
+            user_ids (list(str)): Users to add
+        """
+        yield self._simple_insert_many(
+            table="users_in_pubic_room",
+            values=[
+                {
+                    "user_id": user_id,
+                    "room_id": room_id,
+                }
+                for user_id in user_ids
+            ],
+            desc="add_users_to_public_room"
+        )
+        for user_id in user_ids:
+            self.get_user_in_public_room.invalidate((user_id,))
+
+    def add_profiles_to_user_dir(self, room_id, users_with_profile):
+        """Add profiles to the user directory
+
+        Args:
+            room_id (str): A room_id that all users are joined to
             users_with_profile (dict): Users to add to directory in the form of
                 mapping of user_id -> ProfileInfo
         """
@@ -125,7 +147,15 @@ class UserDirectoryStore(SQLBaseStore):
             updatevalues={"room_id": room_id},
             desc="update_user_in_user_dir",
         )
-        self.get_user_in_directory.invalidate((user_id,))
+
+    @defer.inlineCallbacks
+    def update_user_in_public_user_list(self, user_id, room_id):
+        yield self._simple_update_one(
+            table="users_in_pubic_room",
+            keyvalues={"user_id": user_id},
+            updatevalues={"room_id": room_id},
+            desc="update_user_in_public_user_list",
+        )
 
     def remove_from_user_dir(self, user_id):
         def _remove_from_user_dir_txn(txn):
@@ -139,13 +169,41 @@ class UserDirectoryStore(SQLBaseStore):
                 table="user_directory_search",
                 keyvalues={"user_id": user_id},
             )
+            self._simple_delete_txn(
+                txn,
+                table="users_in_pubic_room",
+                keyvalues={"user_id": user_id},
+            )
             txn.call_after(
                 self.get_user_in_directory.invalidate, (user_id,)
             )
+            txn.call_after(
+                self.get_user_in_public_room.invalidate, (user_id,)
+            )
         return self.runInteraction(
             "remove_from_user_dir", _remove_from_user_dir_txn,
         )
 
+    @defer.inlineCallbacks
+    def remove_from_user_in_public_room(self, user_id):
+        yield self._simple_delete(
+            table="users_in_pubic_room",
+            keyvalues={"user_id": user_id},
+            desc="remove_from_user_in_public_room",
+        )
+        self.get_user_in_public_room.invalidate((user_id,))
+
+    def get_users_in_public_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(
+            table="users_in_pubic_room",
+            keyvalues={"room_id": room_id},
+            retcol="user_id",
+            desc="get_users_in_public_due_to_room",
+        )
+
     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
@@ -173,6 +231,7 @@ class UserDirectoryStore(SQLBaseStore):
         def _delete_all_from_user_dir_txn(txn):
             txn.execute("DELETE FROM user_directory")
             txn.execute("DELETE FROM user_directory_search")
+            txn.execute("DELETE FROM users_in_pubic_room")
             txn.call_after(self.get_user_in_directory.invalidate_all)
         return self.runInteraction(
             "delete_all_from_user_dir", _delete_all_from_user_dir_txn
@@ -188,6 +247,16 @@ class UserDirectoryStore(SQLBaseStore):
             desc="get_user_in_directory",
         )
 
+    @cached()
+    def get_user_in_public_room(self, user_id):
+        return self._simple_select_one(
+            table="users_in_pubic_room",
+            keyvalues={"user_id": user_id},
+            retcols=("room_id",),
+            allow_none=True,
+            desc="get_user_in_public_room",
+        )
+
     def get_user_directory_stream_pos(self):
         return self._simple_select_one_onecol(
             table="user_directory_stream_pos",
@@ -282,6 +351,7 @@ class UserDirectoryStore(SQLBaseStore):
                 SELECT user_id, display_name, avatar_url
                 FROM user_directory_search
                 INNER JOIN user_directory USING (user_id)
+                INNER JOIN users_in_pubic_room USING (user_id)
                 WHERE vector @@ to_tsquery('english', ?)
                 ORDER BY
                     ts_rank_cd(vector, to_tsquery('english', ?), 1) DESC,
@@ -295,6 +365,7 @@ class UserDirectoryStore(SQLBaseStore):
                 SELECT user_id, display_name, avatar_url
                 FROM user_directory_search
                 INNER JOIN user_directory USING (user_id)
+                INNER JOIN users_in_pubic_room USING (user_id)
                 WHERE value MATCH ?
                 ORDER BY
                     rank(matchinfo(user_directory)) DESC,