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-rw-r--r--synapse/storage/keys.py41
-rw-r--r--synapse/storage/media_repository.py71
-rw-r--r--synapse/storage/prepare_database.py2
-rw-r--r--synapse/storage/schema/delta/44/expire_url_cache.sql38
4 files changed, 129 insertions, 23 deletions
diff --git a/synapse/storage/keys.py b/synapse/storage/keys.py
index 3b5e0a4fb9..87aeaf71d6 100644
--- a/synapse/storage/keys.py
+++ b/synapse/storage/keys.py
@@ -113,30 +113,37 @@ class KeyStore(SQLBaseStore):
                 keys[key_id] = key
         defer.returnValue(keys)
 
-    @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.
         Args:
             server_name (str): The name of the server.
-            key_id (str): The version of the key for the server.
             from_server (str): Where the verification key was looked up
-            ts_now_ms (int): The time now in milliseconds
-            verification_key (VerifyKey): The NACL verify key.
+            time_now_ms (int): The time now in milliseconds
+            verify_key (nacl.signing.VerifyKey): The NACL verify key.
         """
-        yield self._simple_upsert(
-            table="server_signature_keys",
-            keyvalues={
-                "server_name": server_name,
-                "key_id": "%s:%s" % (verify_key.alg, verify_key.version),
-            },
-            values={
-                "from_server": from_server,
-                "ts_added_ms": time_now_ms,
-                "verify_key": buffer(verify_key.encode()),
-            },
-            desc="store_server_verify_key",
-        )
+        key_id = "%s:%s" % (verify_key.alg, verify_key.version)
+
+        def _txn(txn):
+            self._simple_upsert_txn(
+                txn,
+                table="server_signature_keys",
+                keyvalues={
+                    "server_name": server_name,
+                    "key_id": key_id,
+                },
+                values={
+                    "from_server": from_server,
+                    "ts_added_ms": time_now_ms,
+                    "verify_key": buffer(verify_key.encode()),
+                },
+            )
+            txn.call_after(
+                self._get_server_verify_key.invalidate,
+                (server_name, key_id)
+            )
+
+        return self.runInteraction("store_server_verify_key", _txn)
 
     def store_server_keys_json(self, server_name, key_id, from_server,
                                ts_now_ms, ts_expires_ms, key_json_bytes):
diff --git a/synapse/storage/media_repository.py b/synapse/storage/media_repository.py
index 82bb61b811..7110a71279 100644
--- a/synapse/storage/media_repository.py
+++ b/synapse/storage/media_repository.py
@@ -62,7 +62,7 @@ class MediaRepositoryStore(SQLBaseStore):
         def get_url_cache_txn(txn):
             # get the most recently cached result (relative to the given ts)
             sql = (
-                "SELECT response_code, etag, expires, og, media_id, download_ts"
+                "SELECT response_code, etag, expires_ts, og, media_id, download_ts"
                 " FROM local_media_repository_url_cache"
                 " WHERE url = ? AND download_ts <= ?"
                 " ORDER BY download_ts DESC LIMIT 1"
@@ -74,7 +74,7 @@ class MediaRepositoryStore(SQLBaseStore):
                 # ...or if we've requested a timestamp older than the oldest
                 # copy in the cache, return the oldest copy (if any)
                 sql = (
-                    "SELECT response_code, etag, expires, og, media_id, download_ts"
+                    "SELECT response_code, etag, expires_ts, og, media_id, download_ts"
                     " FROM local_media_repository_url_cache"
                     " WHERE url = ? AND download_ts > ?"
                     " ORDER BY download_ts ASC LIMIT 1"
@@ -86,14 +86,14 @@ class MediaRepositoryStore(SQLBaseStore):
                 return None
 
             return dict(zip((
-                'response_code', 'etag', 'expires', 'og', 'media_id', 'download_ts'
+                'response_code', 'etag', 'expires_ts', 'og', 'media_id', 'download_ts'
             ), row))
 
         return self.runInteraction(
             "get_url_cache", get_url_cache_txn
         )
 
-    def store_url_cache(self, url, response_code, etag, expires, og, media_id,
+    def store_url_cache(self, url, response_code, etag, expires_ts, og, media_id,
                         download_ts):
         return self._simple_insert(
             "local_media_repository_url_cache",
@@ -101,7 +101,7 @@ class MediaRepositoryStore(SQLBaseStore):
                 "url": url,
                 "response_code": response_code,
                 "etag": etag,
-                "expires": expires,
+                "expires_ts": expires_ts,
                 "og": og,
                 "media_id": media_id,
                 "download_ts": download_ts,
@@ -238,3 +238,64 @@ class MediaRepositoryStore(SQLBaseStore):
                 },
             )
         return self.runInteraction("delete_remote_media", delete_remote_media_txn)
+
+    def get_expired_url_cache(self, now_ts):
+        sql = (
+            "SELECT media_id FROM local_media_repository_url_cache"
+            " WHERE expires_ts < ?"
+            " ORDER BY expires_ts ASC"
+            " LIMIT 500"
+        )
+
+        def _get_expired_url_cache_txn(txn):
+            txn.execute(sql, (now_ts,))
+            return [row[0] for row in txn]
+
+        return self.runInteraction("get_expired_url_cache", _get_expired_url_cache_txn)
+
+    def delete_url_cache(self, media_ids):
+        sql = (
+            "DELETE FROM local_media_repository_url_cache"
+            " WHERE media_id = ?"
+        )
+
+        def _delete_url_cache_txn(txn):
+            txn.executemany(sql, [(media_id,) for media_id in media_ids])
+
+        return self.runInteraction("delete_url_cache", _delete_url_cache_txn)
+
+    def get_url_cache_media_before(self, before_ts):
+        sql = (
+            "SELECT media_id FROM local_media_repository"
+            " WHERE created_ts < ? AND url_cache IS NOT NULL"
+            " ORDER BY created_ts ASC"
+            " LIMIT 500"
+        )
+
+        def _get_url_cache_media_before_txn(txn):
+            txn.execute(sql, (before_ts,))
+            return [row[0] for row in txn]
+
+        return self.runInteraction(
+            "get_url_cache_media_before", _get_url_cache_media_before_txn,
+        )
+
+    def delete_url_cache_media(self, media_ids):
+        def _delete_url_cache_media_txn(txn):
+            sql = (
+                "DELETE FROM local_media_repository"
+                " WHERE media_id = ?"
+            )
+
+            txn.executemany(sql, [(media_id,) for media_id in media_ids])
+
+            sql = (
+                "DELETE FROM local_media_repository_thumbnails"
+                " WHERE media_id = ?"
+            )
+
+            txn.executemany(sql, [(media_id,) for media_id in media_ids])
+
+        return self.runInteraction(
+            "delete_url_cache_media", _delete_url_cache_media_txn,
+        )
diff --git a/synapse/storage/prepare_database.py b/synapse/storage/prepare_database.py
index 72b670b83b..a0af8456f5 100644
--- a/synapse/storage/prepare_database.py
+++ b/synapse/storage/prepare_database.py
@@ -25,7 +25,7 @@ logger = logging.getLogger(__name__)
 
 # Remember to update this number every time a change is made to database
 # schema files, so the users will be informed on server restarts.
-SCHEMA_VERSION = 43
+SCHEMA_VERSION = 44
 
 dir_path = os.path.abspath(os.path.dirname(__file__))
 
diff --git a/synapse/storage/schema/delta/44/expire_url_cache.sql b/synapse/storage/schema/delta/44/expire_url_cache.sql
new file mode 100644
index 0000000000..e2b775f038
--- /dev/null
+++ b/synapse/storage/schema/delta/44/expire_url_cache.sql
@@ -0,0 +1,38 @@
+/* Copyright 2017 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+CREATE INDEX local_media_repository_url_idx ON local_media_repository(created_ts) WHERE url_cache IS NOT NULL;
+
+-- we need to change `expires` to `expires_ts` so that we can index on it. SQLite doesn't support
+-- indices on expressions until 3.9.
+CREATE TABLE local_media_repository_url_cache_new(
+    url TEXT,
+    response_code INTEGER,
+    etag TEXT,
+    expires_ts BIGINT,
+    og TEXT,
+    media_id TEXT,
+    download_ts BIGINT
+);
+
+INSERT INTO local_media_repository_url_cache_new
+    SELECT url, response_code, etag, expires + download_ts, og, media_id, download_ts FROM local_media_repository_url_cache;
+
+DROP TABLE local_media_repository_url_cache;
+ALTER TABLE local_media_repository_url_cache_new RENAME TO local_media_repository_url_cache;
+
+CREATE INDEX local_media_repository_url_cache_expires_idx ON local_media_repository_url_cache(expires_ts);
+CREATE INDEX local_media_repository_url_cache_by_url_download_ts ON local_media_repository_url_cache(url, download_ts);
+CREATE INDEX local_media_repository_url_cache_media_idx ON local_media_repository_url_cache(media_id);