fix debug mode in gaiohttp worker

The debug setting has been removed and now only the debug level can be used to know if
we are in debug mode or not. This change update the gaiohttp worker to handle
that. While I'm here, expose the loglevel from the Logger class.

fix #977

gunicorn/glogging.py

@@ -171,12 +171,13 @@ class Logger(object):
         self.access_log.propagate = False
         self.error_handlers = []
         self.access_handlers = []
+        self.loglevel = logging.INFO
         self.cfg = cfg
         self.setup(cfg)
 
     def setup(self, cfg):
-        loglevel = self.LOG_LEVELS.get(cfg.loglevel.lower(), logging.INFO)
-        self.error_log.setLevel(loglevel)
+        self.loglevel = self.LOG_LEVELS.get(cfg.loglevel.lower(), logging.INFO)
+        self.error_log.setLevel(self.loglevel)
         self.access_log.setLevel(logging.INFO)
 
         # set gunicorn.error handler

gunicorn/workers/_gaiohttp.py

@@ -5,6 +5,7 @@
 
 import asyncio
 import functools
+import logging
 import os
 import gunicorn.workers.base as base
 
@@ -44,11 +45,14 @@ class AiohttpWorker(base.Worker):
         return proto
 
     def factory(self, wsgi, addr):
+        # are we in debug level
+        is_debug = self.log.loglevel == logging.DEBUG
+
         proto = WSGIServerHttpProtocol(
             wsgi, readpayload=True,
             loop=self.loop,
             log=self.log,
-            debug=self.cfg.debug,
+            debug=is_debug,
             keep_alive=self.cfg.keepalive,
             access_log=self.log.access_log,
             access_log_format=self.cfg.access_log_format)