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-rw-r--r--synapse/storage/keys.py49
1 files changed, 30 insertions, 19 deletions
diff --git a/synapse/storage/keys.py b/synapse/storage/keys.py
index 5bdf497b93..49b8e37cfd 100644
--- a/synapse/storage/keys.py
+++ b/synapse/storage/keys.py
@@ -13,7 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from _base import SQLBaseStore
+from _base import SQLBaseStore, cachedInlineCallbacks
 
 from twisted.internet import defer
 
@@ -71,6 +71,24 @@ class KeyStore(SQLBaseStore):
             desc="store_server_certificate",
         )
 
+    @cachedInlineCallbacks()
+    def get_all_server_verify_keys(self, server_name):
+        rows = yield self._simple_select_list(
+            table="server_signature_keys",
+            keyvalues={
+                "server_name": server_name,
+            },
+            retcols=["key_id", "verify_key"],
+            desc="get_all_server_verify_keys",
+        )
+
+        defer.returnValue({
+            row["key_id"]: decode_verify_key_bytes(
+                row["key_id"], str(row["verify_key"])
+            )
+            for row in rows
+        })
+
     @defer.inlineCallbacks
     def get_server_verify_keys(self, server_name, key_ids):
         """Retrieve the NACL verification key for a given server for the given
@@ -81,24 +99,14 @@ class KeyStore(SQLBaseStore):
         Returns:
             (list of VerifyKey): The verification keys.
         """
-        sql = (
-            "SELECT key_id, verify_key FROM server_signature_keys"
-            " WHERE server_name = ?"
-            " AND key_id in (" + ",".join("?" for key_id in key_ids) + ")"
-        )
-
-        rows = yield self._execute_and_decode(
-            "get_server_verify_keys", sql, server_name, *key_ids
-        )
-
-        keys = []
-        for row in rows:
-            key_id = row["key_id"]
-            key_bytes = row["verify_key"]
-            key = decode_verify_key_bytes(key_id, str(key_bytes))
-            keys.append(key)
-        defer.returnValue(keys)
+        keys = yield self.get_all_server_verify_keys(server_name)
+        defer.returnValue({
+            k: keys[k]
+            for k in key_ids
+            if k in keys and keys[k]
+        })
 
+    @defer.inlineCallbacks
     def store_server_verify_key(self, server_name, from_server, time_now_ms,
                                 verify_key):
         """Stores a NACL verification key for the given server.
@@ -109,7 +117,7 @@ class KeyStore(SQLBaseStore):
             ts_now_ms (int): The time now in milliseconds
             verification_key (VerifyKey): The NACL verify key.
         """
-        return self._simple_upsert(
+        yield self._simple_upsert(
             table="server_signature_keys",
             keyvalues={
                 "server_name": server_name,
@@ -123,6 +131,8 @@ class KeyStore(SQLBaseStore):
             desc="store_server_verify_key",
         )
 
+        self.get_all_server_verify_keys.invalidate((server_name,))
+
     def store_server_keys_json(self, server_name, key_id, from_server,
                                ts_now_ms, ts_expires_ms, key_json_bytes):
         """Stores the JSON bytes for a set of keys from a server
@@ -152,6 +162,7 @@ class KeyStore(SQLBaseStore):
                 "ts_valid_until_ms": ts_expires_ms,
                 "key_json": buffer(key_json_bytes),
             },
+            desc="store_server_keys_json",
         )
 
     def get_server_keys_json(self, server_keys):