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-rw-r--r--synapse/handlers/register.py6
-rw-r--r--synapse/handlers/state_deltas.py9
-rw-r--r--synapse/handlers/stats.py47
-rw-r--r--synapse/handlers/user_directory.py118
4 files changed, 73 insertions, 107 deletions
diff --git a/synapse/handlers/register.py b/synapse/handlers/register.py
index 5c7113a3bb..af812dbda9 100644
--- a/synapse/handlers/register.py
+++ b/synapse/handlers/register.py
@@ -207,8 +207,10 @@ class RegistrationHandler(BaseHandler):
 
             if self.hs.config.user_directory_search_all_users:
                 profile = yield self.store.get_profileinfo(localpart)
-                yield self.user_directory_handler.handle_local_profile_change(
-                    user_id, profile
+                yield defer.ensureDeferred(
+                    self.user_directory_handler.handle_local_profile_change(
+                        user_id, profile
+                    )
                 )
 
         else:
diff --git a/synapse/handlers/state_deltas.py b/synapse/handlers/state_deltas.py
index f065970c40..8590c1eff4 100644
--- a/synapse/handlers/state_deltas.py
+++ b/synapse/handlers/state_deltas.py
@@ -15,8 +15,6 @@
 
 import logging
 
-from twisted.internet import defer
-
 logger = logging.getLogger(__name__)
 
 
@@ -24,8 +22,7 @@ class StateDeltasHandler(object):
     def __init__(self, hs):
         self.store = hs.get_datastore()
 
-    @defer.inlineCallbacks
-    def _get_key_change(self, prev_event_id, event_id, key_name, public_value):
+    async def _get_key_change(self, prev_event_id, event_id, key_name, public_value):
         """Given two events check if the `key_name` field in content changed
         from not matching `public_value` to doing so.
 
@@ -41,10 +38,10 @@ class StateDeltasHandler(object):
         prev_event = None
         event = None
         if prev_event_id:
-            prev_event = yield self.store.get_event(prev_event_id, allow_none=True)
+            prev_event = await self.store.get_event(prev_event_id, allow_none=True)
 
         if event_id:
-            event = yield self.store.get_event(event_id, allow_none=True)
+            event = await self.store.get_event(event_id, allow_none=True)
 
         if not event and not prev_event:
             logger.debug("Neither event exists: %r %r", prev_event_id, event_id)
diff --git a/synapse/handlers/stats.py b/synapse/handlers/stats.py
index d93a276693..149f861239 100644
--- a/synapse/handlers/stats.py
+++ b/synapse/handlers/stats.py
@@ -16,17 +16,14 @@
 import logging
 from collections import Counter
 
-from twisted.internet import defer
-
 from synapse.api.constants import EventTypes, Membership
-from synapse.handlers.state_deltas import StateDeltasHandler
 from synapse.metrics import event_processing_positions
 from synapse.metrics.background_process_metrics import run_as_background_process
 
 logger = logging.getLogger(__name__)
 
 
-class StatsHandler(StateDeltasHandler):
+class StatsHandler:
     """Handles keeping the *_stats tables updated with a simple time-series of
     information about the users, rooms and media on the server, such that admins
     have some idea of who is consuming their resources.
@@ -35,7 +32,6 @@ class StatsHandler(StateDeltasHandler):
     """
 
     def __init__(self, hs):
-        super(StatsHandler, self).__init__(hs)
         self.hs = hs
         self.store = hs.get_datastore()
         self.state = hs.get_state_handler()
@@ -68,20 +64,18 @@ class StatsHandler(StateDeltasHandler):
 
         self._is_processing = True
 
-        @defer.inlineCallbacks
-        def process():
+        async def process():
             try:
-                yield self._unsafe_process()
+                await self._unsafe_process()
             finally:
                 self._is_processing = False
 
         run_as_background_process("stats.notify_new_event", process)
 
-    @defer.inlineCallbacks
-    def _unsafe_process(self):
+    async def _unsafe_process(self):
         # If self.pos is None then means we haven't fetched it from DB
         if self.pos is None:
-            self.pos = yield self.store.get_stats_positions()
+            self.pos = await self.store.get_stats_positions()
 
         # Loop round handling deltas until we're up to date
 
@@ -96,13 +90,13 @@ class StatsHandler(StateDeltasHandler):
             logger.debug(
                 "Processing room stats %s->%s", self.pos, room_max_stream_ordering
             )
-            max_pos, deltas = yield self.store.get_current_state_deltas(
+            max_pos, deltas = await self.store.get_current_state_deltas(
                 self.pos, room_max_stream_ordering
             )
 
             if deltas:
                 logger.debug("Handling %d state deltas", len(deltas))
-                room_deltas, user_deltas = yield self._handle_deltas(deltas)
+                room_deltas, user_deltas = await self._handle_deltas(deltas)
             else:
                 room_deltas = {}
                 user_deltas = {}
@@ -111,7 +105,7 @@ class StatsHandler(StateDeltasHandler):
             (
                 room_count,
                 user_count,
-            ) = yield self.store.get_changes_room_total_events_and_bytes(
+            ) = await self.store.get_changes_room_total_events_and_bytes(
                 self.pos, max_pos
             )
 
@@ -125,7 +119,7 @@ class StatsHandler(StateDeltasHandler):
             logger.debug("user_deltas: %s", user_deltas)
 
             # Always call this so that we update the stats position.
-            yield self.store.bulk_update_stats_delta(
+            await self.store.bulk_update_stats_delta(
                 self.clock.time_msec(),
                 updates={"room": room_deltas, "user": user_deltas},
                 stream_id=max_pos,
@@ -137,13 +131,12 @@ class StatsHandler(StateDeltasHandler):
 
             self.pos = max_pos
 
-    @defer.inlineCallbacks
-    def _handle_deltas(self, deltas):
+    async def _handle_deltas(self, deltas):
         """Called with the state deltas to process
 
         Returns:
-            Deferred[tuple[dict[str, Counter], dict[str, counter]]]
-            Resovles to two dicts, the room deltas and the user deltas,
+            tuple[dict[str, Counter], dict[str, counter]]
+            Two dicts: the room deltas and the user deltas,
             mapping from room/user ID to changes in the various fields.
         """
 
@@ -162,7 +155,7 @@ class StatsHandler(StateDeltasHandler):
 
             logger.debug("Handling: %r, %r %r, %s", room_id, typ, state_key, event_id)
 
-            token = yield self.store.get_earliest_token_for_stats("room", room_id)
+            token = await self.store.get_earliest_token_for_stats("room", room_id)
 
             # If the earliest token to begin from is larger than our current
             # stream ID, skip processing this delta.
@@ -184,7 +177,7 @@ class StatsHandler(StateDeltasHandler):
 
             sender = None
             if event_id is not None:
-                event = yield self.store.get_event(event_id, allow_none=True)
+                event = await self.store.get_event(event_id, allow_none=True)
                 if event:
                     event_content = event.content or {}
                     sender = event.sender
@@ -200,16 +193,16 @@ class StatsHandler(StateDeltasHandler):
                 room_stats_delta["current_state_events"] += 1
 
             if typ == EventTypes.Member:
-                # we could use _get_key_change here but it's a bit inefficient
-                # given we're not testing for a specific result; might as well
-                # just grab the prev_membership and membership strings and
-                # compare them.
+                # we could use StateDeltasHandler._get_key_change here but it's
+                # a bit inefficient given we're not testing for a specific
+                # result; might as well just grab the prev_membership and
+                # membership strings and compare them.
                 # We take None rather than leave as a previous membership
                 # in the absence of a previous event because we do not want to
                 # reduce the leave count when a new-to-the-room user joins.
                 prev_membership = None
                 if prev_event_id is not None:
-                    prev_event = yield self.store.get_event(
+                    prev_event = await self.store.get_event(
                         prev_event_id, allow_none=True
                     )
                     if prev_event:
@@ -301,6 +294,6 @@ class StatsHandler(StateDeltasHandler):
 
         for room_id, state in room_to_state_updates.items():
             logger.debug("Updating room_stats_state for %s: %s", room_id, state)
-            yield self.store.update_room_state(room_id, state)
+            await self.store.update_room_state(room_id, state)
 
         return room_to_stats_deltas, user_to_stats_deltas
diff --git a/synapse/handlers/user_directory.py b/synapse/handlers/user_directory.py
index 722760c59d..12423b909a 100644
--- a/synapse/handlers/user_directory.py
+++ b/synapse/handlers/user_directory.py
@@ -17,14 +17,11 @@ import logging
 
 from six import iteritems, iterkeys
 
-from twisted.internet import defer
-
 import synapse.metrics
 from synapse.api.constants import EventTypes, JoinRules, Membership
 from synapse.handlers.state_deltas import StateDeltasHandler
 from synapse.metrics.background_process_metrics import run_as_background_process
 from synapse.storage.roommember import ProfileInfo
-from synapse.types import get_localpart_from_id
 from synapse.util.metrics import Measure
 
 logger = logging.getLogger(__name__)
@@ -103,43 +100,39 @@ class UserDirectoryHandler(StateDeltasHandler):
         if self._is_processing:
             return
 
-        @defer.inlineCallbacks
-        def process():
+        async def process():
             try:
-                yield self._unsafe_process()
+                await self._unsafe_process()
             finally:
                 self._is_processing = False
 
         self._is_processing = True
         run_as_background_process("user_directory.notify_new_event", process)
 
-    @defer.inlineCallbacks
-    def handle_local_profile_change(self, user_id, profile):
+    async def handle_local_profile_change(self, user_id, profile):
         """Called to update index of our local user profiles when they change
         irrespective of any rooms the user may be in.
         """
         # FIXME(#3714): We should probably do this in the same worker as all
         # the other changes.
-        is_support = yield self.store.is_support_user(user_id)
+        is_support = await self.store.is_support_user(user_id)
         # Support users are for diagnostics and should not appear in the user directory.
         if not is_support:
-            yield self.store.update_profile_in_user_dir(
+            await self.store.update_profile_in_user_dir(
                 user_id, profile.display_name, profile.avatar_url
             )
 
-    @defer.inlineCallbacks
-    def handle_user_deactivated(self, user_id):
+    async def handle_user_deactivated(self, user_id):
         """Called when a user ID is deactivated
         """
         # FIXME(#3714): We should probably do this in the same worker as all
         # the other changes.
-        yield self.store.remove_from_user_dir(user_id)
+        await self.store.remove_from_user_dir(user_id)
 
-    @defer.inlineCallbacks
-    def _unsafe_process(self):
+    async def _unsafe_process(self):
         # If self.pos is None then means we haven't fetched it from DB
         if self.pos is None:
-            self.pos = yield self.store.get_user_directory_stream_pos()
+            self.pos = await self.store.get_user_directory_stream_pos()
 
         # If still None then the initial background update hasn't happened yet
         if self.pos is None:
@@ -155,12 +148,12 @@ class UserDirectoryHandler(StateDeltasHandler):
                 logger.debug(
                     "Processing user stats %s->%s", self.pos, room_max_stream_ordering
                 )
-                max_pos, deltas = yield self.store.get_current_state_deltas(
+                max_pos, deltas = await self.store.get_current_state_deltas(
                     self.pos, room_max_stream_ordering
                 )
 
                 logger.debug("Handling %d state deltas", len(deltas))
-                yield self._handle_deltas(deltas)
+                await self._handle_deltas(deltas)
 
                 self.pos = max_pos
 
@@ -169,10 +162,9 @@ class UserDirectoryHandler(StateDeltasHandler):
                     max_pos
                 )
 
-                yield self.store.update_user_directory_stream_pos(max_pos)
+                await self.store.update_user_directory_stream_pos(max_pos)
 
-    @defer.inlineCallbacks
-    def _handle_deltas(self, deltas):
+    async def _handle_deltas(self, deltas):
         """Called with the state deltas to process
         """
         for delta in deltas:
@@ -187,11 +179,11 @@ class UserDirectoryHandler(StateDeltasHandler):
             # For join rule and visibility changes we need to check if the room
             # may have become public or not and add/remove the users in said room
             if typ in (EventTypes.RoomHistoryVisibility, EventTypes.JoinRules):
-                yield self._handle_room_publicity_change(
+                await self._handle_room_publicity_change(
                     room_id, prev_event_id, event_id, typ
                 )
             elif typ == EventTypes.Member:
-                change = yield self._get_key_change(
+                change = await self._get_key_change(
                     prev_event_id,
                     event_id,
                     key_name="membership",
@@ -201,7 +193,7 @@ class UserDirectoryHandler(StateDeltasHandler):
                 if change is False:
                     # Need to check if the server left the room entirely, if so
                     # we might need to remove all the users in that room
-                    is_in_room = yield self.store.is_host_joined(
+                    is_in_room = await self.store.is_host_joined(
                         room_id, self.server_name
                     )
                     if not is_in_room:
@@ -209,40 +201,41 @@ class UserDirectoryHandler(StateDeltasHandler):
                         # Fetch all the users that we marked as being in user
                         # directory due to being in the room and then check if
                         # need to remove those users or not
-                        user_ids = yield self.store.get_users_in_dir_due_to_room(
+                        user_ids = await self.store.get_users_in_dir_due_to_room(
                             room_id
                         )
 
                         for user_id in user_ids:
-                            yield self._handle_remove_user(room_id, user_id)
+                            await self._handle_remove_user(room_id, user_id)
                         return
                     else:
                         logger.debug("Server is still in room: %r", room_id)
 
-                is_support = yield self.store.is_support_user(state_key)
+                is_support = await self.store.is_support_user(state_key)
                 if not is_support:
                     if change is None:
                         # Handle any profile changes
-                        yield self._handle_profile_change(
+                        await self._handle_profile_change(
                             state_key, room_id, prev_event_id, event_id
                         )
                         continue
 
                     if change:  # The user joined
-                        event = yield self.store.get_event(event_id, allow_none=True)
+                        event = await self.store.get_event(event_id, allow_none=True)
                         profile = ProfileInfo(
                             avatar_url=event.content.get("avatar_url"),
                             display_name=event.content.get("displayname"),
                         )
 
-                        yield self._handle_new_user(room_id, state_key, profile)
+                        await self._handle_new_user(room_id, state_key, profile)
                     else:  # The user left
-                        yield self._handle_remove_user(room_id, state_key)
+                        await self._handle_remove_user(room_id, state_key)
             else:
                 logger.debug("Ignoring irrelevant type: %r", typ)
 
-    @defer.inlineCallbacks
-    def _handle_room_publicity_change(self, room_id, prev_event_id, event_id, typ):
+    async def _handle_room_publicity_change(
+        self, room_id, prev_event_id, event_id, typ
+    ):
         """Handle a room having potentially changed from/to world_readable/publically
         joinable.
 
@@ -255,14 +248,14 @@ class UserDirectoryHandler(StateDeltasHandler):
         logger.debug("Handling change for %s: %s", typ, room_id)
 
         if typ == EventTypes.RoomHistoryVisibility:
-            change = yield self._get_key_change(
+            change = await self._get_key_change(
                 prev_event_id,
                 event_id,
                 key_name="history_visibility",
                 public_value="world_readable",
             )
         elif typ == EventTypes.JoinRules:
-            change = yield self._get_key_change(
+            change = await self._get_key_change(
                 prev_event_id,
                 event_id,
                 key_name="join_rule",
@@ -278,7 +271,7 @@ class UserDirectoryHandler(StateDeltasHandler):
 
         # There's been a change to or from being world readable.
 
-        is_public = yield self.store.is_room_world_readable_or_publicly_joinable(
+        is_public = await self.store.is_room_world_readable_or_publicly_joinable(
             room_id
         )
 
@@ -293,11 +286,11 @@ class UserDirectoryHandler(StateDeltasHandler):
             # ignore the change
             return
 
-        users_with_profile = yield self.state.get_current_users_in_room(room_id)
+        users_with_profile = await self.state.get_current_users_in_room(room_id)
 
         # Remove every user from the sharing tables for that room.
         for user_id in iterkeys(users_with_profile):
-            yield self.store.remove_user_who_share_room(user_id, room_id)
+            await self.store.remove_user_who_share_room(user_id, room_id)
 
         # Then, re-add them to the tables.
         # NOTE: this is not the most efficient method, as handle_new_user sets
@@ -306,26 +299,9 @@ class UserDirectoryHandler(StateDeltasHandler):
         # being added multiple times. The batching upserts shouldn't make this
         # too bad, though.
         for user_id, profile in iteritems(users_with_profile):
-            yield self._handle_new_user(room_id, user_id, profile)
-
-    @defer.inlineCallbacks
-    def _handle_local_user(self, user_id):
-        """Adds a new local roomless user into the user_directory_search table.
-        Used to populate up the user index when we have an
-        user_directory_search_all_users specified.
-        """
-        logger.debug("Adding new local user to dir, %r", user_id)
-
-        profile = yield self.store.get_profileinfo(get_localpart_from_id(user_id))
-
-        row = yield self.store.get_user_in_directory(user_id)
-        if not row:
-            yield self.store.update_profile_in_user_dir(
-                user_id, profile.display_name, profile.avatar_url
-            )
+            await self._handle_new_user(room_id, user_id, profile)
 
-    @defer.inlineCallbacks
-    def _handle_new_user(self, room_id, user_id, profile):
+    async def _handle_new_user(self, room_id, user_id, profile):
         """Called when we might need to add user to directory
 
         Args:
@@ -334,18 +310,18 @@ class UserDirectoryHandler(StateDeltasHandler):
         """
         logger.debug("Adding new user to dir, %r", user_id)
 
-        yield self.store.update_profile_in_user_dir(
+        await self.store.update_profile_in_user_dir(
             user_id, profile.display_name, profile.avatar_url
         )
 
-        is_public = yield self.store.is_room_world_readable_or_publicly_joinable(
+        is_public = await self.store.is_room_world_readable_or_publicly_joinable(
             room_id
         )
         # Now we update users who share rooms with users.
-        users_with_profile = yield self.state.get_current_users_in_room(room_id)
+        users_with_profile = await self.state.get_current_users_in_room(room_id)
 
         if is_public:
-            yield self.store.add_users_in_public_rooms(room_id, (user_id,))
+            await self.store.add_users_in_public_rooms(room_id, (user_id,))
         else:
             to_insert = set()
 
@@ -376,10 +352,9 @@ class UserDirectoryHandler(StateDeltasHandler):
                     to_insert.add((other_user_id, user_id))
 
             if to_insert:
-                yield self.store.add_users_who_share_private_room(room_id, to_insert)
+                await self.store.add_users_who_share_private_room(room_id, to_insert)
 
-    @defer.inlineCallbacks
-    def _handle_remove_user(self, room_id, user_id):
+    async def _handle_remove_user(self, room_id, user_id):
         """Called when we might need to remove user from directory
 
         Args:
@@ -389,24 +364,23 @@ class UserDirectoryHandler(StateDeltasHandler):
         logger.debug("Removing user %r", user_id)
 
         # Remove user from sharing tables
-        yield self.store.remove_user_who_share_room(user_id, room_id)
+        await self.store.remove_user_who_share_room(user_id, room_id)
 
         # Are they still in any rooms? If not, remove them entirely.
-        rooms_user_is_in = yield self.store.get_user_dir_rooms_user_is_in(user_id)
+        rooms_user_is_in = await self.store.get_user_dir_rooms_user_is_in(user_id)
 
         if len(rooms_user_is_in) == 0:
-            yield self.store.remove_from_user_dir(user_id)
+            await self.store.remove_from_user_dir(user_id)
 
-    @defer.inlineCallbacks
-    def _handle_profile_change(self, user_id, room_id, prev_event_id, event_id):
+    async 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
         database if there are.
         """
         if not prev_event_id or not event_id:
             return
 
-        prev_event = yield self.store.get_event(prev_event_id, allow_none=True)
-        event = yield self.store.get_event(event_id, allow_none=True)
+        prev_event = await self.store.get_event(prev_event_id, allow_none=True)
+        event = await self.store.get_event(event_id, allow_none=True)
 
         if not prev_event or not event:
             return
@@ -421,4 +395,4 @@ class UserDirectoryHandler(StateDeltasHandler):
         new_avatar = event.content.get("avatar_url")
 
         if prev_name != new_name or prev_avatar != new_avatar:
-            yield self.store.update_profile_in_user_dir(user_id, new_name, new_avatar)
+            await self.store.update_profile_in_user_dir(user_id, new_name, new_avatar)