修复日志 API 错误

kvmd/apps/kvmd/api/log.py

@@ -61,6 +61,8 @@ class LogApi:
                     record["msg"],
                 )).encode("utf-8") + b"\r\n")
         except Exception as e:
-            await response.write(f"Module systemd.journal unavailable, switch to supervisord.\n{record}".encode("utf-8"))
+            if record is None:
+                record = e 
+            await response.write(f"Module systemd.journal is unavailable.\n{record}".encode("utf-8"))
             return response
         return response

kvmd/apps/kvmd/logreader.py

@@ -30,21 +30,19 @@ from xmlrpc.client import ServerProxy
 
 from ...logging import get_logger
 
-us_systemd_journal = True
-
 try:
-    module_name = "systemd.journal"
-    module = __import__(module_name)
-except ImportError:
+    import systemd.journal
+except ImportError as e:
+    get_logger(0).error("Failed to import module: %s", "systemd.journal")
     us_systemd_journal = False
-    get_logger(0).error("Failed to import module: %s", module_name)
 
 try:
-    module_name = "supervisor.xmlrpc"
-    module = __import__(module_name)
-except ImportError:
+    import supervisor.xmlrpc
+except ImportError as e:
+    get_logger(0).info("Failed to import module: %s", "supervisor.xmlrpc")
     us_systemd_journal = True
 
+
 # =====
 class LogReader:
     async def poll_log(self, seek: int, follow: bool) -> AsyncGenerator[dict, None]: