安全性

main.py

@@ -164,7 +164,11 @@ def fetch_kiriban_list (
             env             = os.environ,
             capture_output  = True,
             text            = True)
-    kl: list[list[int | str]] = json.loads (result.stdout)
+    kl: list[list[int | str]]
+    try:
+        kl = json.loads (result.stdout)
+    except Exception:
+        kl = []
 
     return [(cast (int, k[0]), video_info, str_to_datetime (cast (str, k[2])))
             for k in kl
@@ -287,14 +291,25 @@ async def report_hot_spring_time (
 async def reconnect_db (
 ) -> None:
     while True:
-        await asyncio.sleep (1800)
-        try:
+        await asyncio.sleep (600)
+        run_with_mysql_retry (DB.reconnect, 'mysql')
+
+
+def ensure_mysql_alive ():
+    conn = DB.connection ('mysql').get_connection ()
+    conn.ping (True)
+
+
+def run_with_mysql_retry (fn, *args, **kwargs):
+    try:
+        ensure_mysql_alive ()
+        return fn (*args, **kwargs)
+    except Exception as ex:
+        if getattr (ex, 'args', [None])[0] in (2006, 2013):
             DB.reconnect ('mysql')
-        except Exception as e:
-            if getattr (e, 'args', [None])[0] == 2006:
-                print ('堕ちたな（確信）．')
-            else:
-                raise
+            ensure_mysql_alive ()
+            return fn (*args, **kwargs)
+        raise
 
 
 def _add_query (
@@ -310,8 +325,9 @@ def _add_query (
     query.model = GPTModel.GPT4_O.value
     query.sent_at = datetime.now ()
     query.answered = False
-    query.transfer_data = transfer_data
-    query.save ()
+    if transfer_data is not None:
+        query.transfer_data = transfer_data
+    run_with_mysql_retry (query.save)
 
 
 def _format_elapsed (