Added filter to prevent useless Session is disconnected warning in logs

bazarr/app/logger.py

@@ -55,6 +55,36 @@ def format(self, record):
     def formatException(self, record):
         return ''
 
+
+class UnwantedWaitressMessageFilter(logging.Filter):
+    def filter(self, record):
+        if settings.general.debug == True:
+            # no filtering in debug mode
+            return True
+
+        unwantedMessages = [ 
+            "Exception while serving /api/socket.io/", 
+            ['Session is disconnected', 'Session not found' ],
+
+            "Exception while serving /api/socket.io/", 
+            ["'Session is disconnected'", "'Session not found'" ],
+
+            "Exception while serving /api/socket.io/", 
+            ['"Session is disconnected"', '"Session not found"' ]
+        ]
+
+        wanted = True    
+        listLength = len(unwantedMessages)
+        for i in range(0, listLength, 2):
+            if record.msg == unwantedMessages[i]:
+                exceptionTuple = record.exc_info
+                if exceptionTuple != None:
+                    if str(exceptionTuple[1]) in unwantedMessages[i+1]:
+                        wanted = False
+                        break
+
+        return wanted
+
 
 def configure_logging(debug=False):
     warnings.simplefilter('ignore', category=ResourceWarning)
@@ -129,6 +159,7 @@ def configure_logging(debug=False):
         logging.getLogger("ga4mp.ga4mp").setLevel(logging.ERROR)
 
     logging.getLogger("waitress").setLevel(logging.ERROR)
+    logging.getLogger("waitress").addFilter(UnwantedWaitressMessageFilter())   
     logging.getLogger("knowit").setLevel(logging.CRITICAL)
     logging.getLogger("enzyme").setLevel(logging.CRITICAL)
     logging.getLogger("guessit").setLevel(logging.WARNING)