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-rw-r--r--synapse/storage/__init__.py12
-rw-r--r--synapse/storage/_base.py2
-rw-r--r--synapse/storage/event_federation.py21
-rw-r--r--synapse/storage/schema/event_edges.sql10
-rw-r--r--synapse/storage/signatures.py12
5 files changed, 56 insertions, 1 deletions
diff --git a/synapse/storage/__init__.py b/synapse/storage/__init__.py
index 2a1970914f..48ad4d864f 100644
--- a/synapse/storage/__init__.py
+++ b/synapse/storage/__init__.py
@@ -19,7 +19,6 @@ from synapse.api.events.room import (
     RoomMemberEvent, RoomTopicEvent, FeedbackEvent,
     RoomNameEvent,
     RoomJoinRulesEvent,
-    RoomPowerLevelsEvent,
     RoomRedactionEvent,
 )
 
@@ -302,6 +301,17 @@ class DataStore(RoomMemberStore, RoomStore,
                     txn, event.event_id, prev_event_id, alg, hash_bytes
                 )
 
+        for auth_id, _ in event.auth_events:
+            self._simple_insert_txn(
+                txn,
+                table="event_auth",
+                values={
+                    "event_id": event.event_id,
+                    "room_id": event.room_id,
+                    "auth_id": auth_id,
+                },
+            )
+
         (ref_alg, ref_hash_bytes) = compute_event_reference_hash(event)
         self._store_event_reference_hash_txn(
             txn, event.event_id, ref_alg, ref_hash_bytes
diff --git a/synapse/storage/_base.py b/synapse/storage/_base.py
index 7821fc4726..9aa404695d 100644
--- a/synapse/storage/_base.py
+++ b/synapse/storage/_base.py
@@ -474,6 +474,8 @@ class SQLBaseStore(object):
                 if is_state == 0
             ]
 
+            ev.auth_events = self._get_auth_events(txn, ev.event_id)
+
             if hasattr(ev, "state_key"):
                 ev.prev_state = [
                     (e_id, h)
diff --git a/synapse/storage/event_federation.py b/synapse/storage/event_federation.py
index 180a764134..86c68ebf87 100644
--- a/synapse/storage/event_federation.py
+++ b/synapse/storage/event_federation.py
@@ -139,6 +139,27 @@ class EventFederationStore(SQLBaseStore):
 
         return results
 
+    def _get_auth_events(self, txn, event_id):
+        auth_ids = self._simple_select_onecol_txn(
+            txn,
+            table="event_auth",
+            keyvalues={
+                "event_id": event_id,
+            },
+            retcol="auth_id",
+        )
+
+        results = []
+        for auth_id in auth_ids:
+            hashes = self._get_event_reference_hashes_txn(txn, auth_id)
+            prev_hashes = {
+                k: encode_base64(v) for k, v in hashes.items()
+                if k == "sha256"
+            }
+            results.append((auth_id, prev_hashes))
+
+        return results
+
     def get_min_depth(self, room_id):
         return self.runInteraction(
             "get_min_depth",
diff --git a/synapse/storage/schema/event_edges.sql b/synapse/storage/schema/event_edges.sql
index 51695826a8..be1c72a775 100644
--- a/synapse/storage/schema/event_edges.sql
+++ b/synapse/storage/schema/event_edges.sql
@@ -63,3 +63,13 @@ CREATE INDEX IF NOT EXISTS st_extrem_keys ON state_forward_extremities(
 );
 CREATE INDEX IF NOT EXISTS st_extrem_id ON state_forward_extremities(event_id);
 
+
+CREATE TABLE IF NOT EXISTS event_auth(
+    event_id TEXT NOT NULL,
+    auth_id TEXT NOT NULL,
+    room_id TEXT NOT NULL,
+    CONSTRAINT uniqueness UNIQUE (event_id, auth_id, room_id)
+);
+
+CREATE INDEX IF NOT EXISTS evauth_edges_id ON event_auth(event_id);
+CREATE INDEX IF NOT EXISTS evauth_edges_auth_id ON event_auth(auth_id);
\ No newline at end of file
diff --git a/synapse/storage/signatures.py b/synapse/storage/signatures.py
index b4b3d5d7ea..84a49088a2 100644
--- a/synapse/storage/signatures.py
+++ b/synapse/storage/signatures.py
@@ -55,6 +55,18 @@ class SignatureStore(SQLBaseStore):
             or_ignore=True,
         )
 
+    def get_event_reference_hashes(self, event_ids):
+        def f(txn):
+            return [
+                self._get_event_reference_hashes_txn(txn, ev)
+                for ev in event_ids
+            ]
+
+        return self.runInteraction(
+            "get_event_reference_hashes",
+            f
+        )
+
     def _get_event_reference_hashes_txn(self, txn, event_id):
         """Get all the hashes for a given PDU.
         Args: