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-rw-r--r--synapse/storage/_base.py4
-rw-r--r--synapse/storage/events.py45
-rw-r--r--synapse/storage/keys.py2
-rw-r--r--synapse/storage/pusher.py2
-rw-r--r--synapse/storage/registration.py2
-rw-r--r--synapse/storage/signatures.py2
-rw-r--r--synapse/storage/transactions.py2
7 files changed, 31 insertions, 28 deletions
diff --git a/synapse/storage/_base.py b/synapse/storage/_base.py
index be61147b9b..d9d0255d0b 100644
--- a/synapse/storage/_base.py
+++ b/synapse/storage/_base.py
@@ -18,7 +18,7 @@ import threading
 import time
 
 from six import PY2, iteritems, iterkeys, itervalues
-from six.moves import intern, range
+from six.moves import builtins, intern, range
 
 from canonicaljson import json
 from prometheus_client import Histogram
@@ -1233,7 +1233,7 @@ def db_to_json(db_content):
 
     # psycopg2 on Python 2 returns buffer objects, which we need to cast to
     # bytes to decode
-    if PY2 and isinstance(db_content, buffer):
+    if PY2 and isinstance(db_content, builtins.buffer):
         db_content = bytes(db_content)
 
     # Decode it to a Unicode string before feeding it to json.loads, so we
diff --git a/synapse/storage/events.py b/synapse/storage/events.py
index 03cedf3a75..c780f55277 100644
--- a/synapse/storage/events.py
+++ b/synapse/storage/events.py
@@ -34,6 +34,7 @@ from synapse.api.errors import SynapseError
 from synapse.events import EventBase  # noqa: F401
 from synapse.events.snapshot import EventContext  # noqa: F401
 from synapse.metrics.background_process_metrics import run_as_background_process
+from synapse.state import StateResolutionStore
 from synapse.storage.background_updates import BackgroundUpdateStore
 from synapse.storage.event_federation import EventFederationStore
 from synapse.storage.events_worker import EventsWorkerStore
@@ -731,11 +732,6 @@ class EventsStore(EventFederationStore, EventsWorkerStore, BackgroundUpdateStore
 
         # Ok, we need to defer to the state handler to resolve our state sets.
 
-        def get_events(ev_ids):
-            return self.get_events(
-                ev_ids, get_prev_content=False, check_redacted=False,
-            )
-
         state_groups = {
             sg: state_groups_map[sg] for sg in new_state_groups
         }
@@ -745,7 +741,8 @@ class EventsStore(EventFederationStore, EventsWorkerStore, BackgroundUpdateStore
 
         logger.debug("calling resolve_state_groups from preserve_events")
         res = yield self._state_resolution_handler.resolve_state_groups(
-            room_id, room_version, state_groups, events_map, get_events
+            room_id, room_version, state_groups, events_map,
+            state_res_store=StateResolutionStore(self)
         )
 
         defer.returnValue((res.state, None))
@@ -854,6 +851,27 @@ class EventsStore(EventFederationStore, EventsWorkerStore, BackgroundUpdateStore
         # Insert into event_to_state_groups.
         self._store_event_state_mappings_txn(txn, events_and_contexts)
 
+        # We want to store event_auth mappings for rejected events, as they're
+        # used in state res v2.
+        # This is only necessary if the rejected event appears in an accepted
+        # event's auth chain, but its easier for now just to store them (and
+        # it doesn't take much storage compared to storing the entire event
+        # anyway).
+        self._simple_insert_many_txn(
+            txn,
+            table="event_auth",
+            values=[
+                {
+                    "event_id": event.event_id,
+                    "room_id": event.room_id,
+                    "auth_id": auth_id,
+                }
+                for event, _ in events_and_contexts
+                for auth_id, _ in event.auth_events
+                if event.is_state()
+            ],
+        )
+
         # _store_rejected_events_txn filters out any events which were
         # rejected, and returns the filtered list.
         events_and_contexts = self._store_rejected_events_txn(
@@ -1329,21 +1347,6 @@ class EventsStore(EventFederationStore, EventsWorkerStore, BackgroundUpdateStore
                     txn, event.room_id, event.redacts
                 )
 
-        self._simple_insert_many_txn(
-            txn,
-            table="event_auth",
-            values=[
-                {
-                    "event_id": event.event_id,
-                    "room_id": event.room_id,
-                    "auth_id": auth_id,
-                }
-                for event, _ in events_and_contexts
-                for auth_id, _ in event.auth_events
-                if event.is_state()
-            ],
-        )
-
         # Update the event_forward_extremities, event_backward_extremities and
         # event_edges tables.
         self._handle_mult_prev_events(
diff --git a/synapse/storage/keys.py b/synapse/storage/keys.py
index a1331c1a61..8af17921e3 100644
--- a/synapse/storage/keys.py
+++ b/synapse/storage/keys.py
@@ -32,7 +32,7 @@ logger = logging.getLogger(__name__)
 # py2 sqlite has buffer hardcoded as only binary type, so we must use it,
 # despite being deprecated and removed in favor of memoryview
 if six.PY2:
-    db_binary_type = buffer
+    db_binary_type = six.moves.builtins.buffer
 else:
     db_binary_type = memoryview
 
diff --git a/synapse/storage/pusher.py b/synapse/storage/pusher.py
index c7987bfcdd..2743b52bad 100644
--- a/synapse/storage/pusher.py
+++ b/synapse/storage/pusher.py
@@ -29,7 +29,7 @@ from ._base import SQLBaseStore
 logger = logging.getLogger(__name__)
 
 if six.PY2:
-    db_binary_type = buffer
+    db_binary_type = six.moves.builtins.buffer
 else:
     db_binary_type = memoryview
 
diff --git a/synapse/storage/registration.py b/synapse/storage/registration.py
index 26b429e307..2dd14aba1c 100644
--- a/synapse/storage/registration.py
+++ b/synapse/storage/registration.py
@@ -567,7 +567,7 @@ class RegistrationStore(RegistrationWorkerStore,
         def _find_next_generated_user_id(txn):
             txn.execute("SELECT name FROM users")
 
-            regex = re.compile("^@(\d+):")
+            regex = re.compile(r"^@(\d+):")
 
             found = set()
 
diff --git a/synapse/storage/signatures.py b/synapse/storage/signatures.py
index 5623391f6e..158e9dbe7b 100644
--- a/synapse/storage/signatures.py
+++ b/synapse/storage/signatures.py
@@ -27,7 +27,7 @@ from ._base import SQLBaseStore
 # py2 sqlite has buffer hardcoded as only binary type, so we must use it,
 # despite being deprecated and removed in favor of memoryview
 if six.PY2:
-    db_binary_type = buffer
+    db_binary_type = six.moves.builtins.buffer
 else:
     db_binary_type = memoryview
 
diff --git a/synapse/storage/transactions.py b/synapse/storage/transactions.py
index a3032cdce9..d8bf953ec0 100644
--- a/synapse/storage/transactions.py
+++ b/synapse/storage/transactions.py
@@ -30,7 +30,7 @@ from ._base import SQLBaseStore, db_to_json
 # py2 sqlite has buffer hardcoded as only binary type, so we must use it,
 # despite being deprecated and removed in favor of memoryview
 if six.PY2:
-    db_binary_type = buffer
+    db_binary_type = six.moves.builtins.buffer
 else:
     db_binary_type = memoryview