metrics: add response code, and fix user problem on metrics

rhodecode/lib/middleware/request_wrapper.py

@@ -63,18 +63,22 b' class RequestWrapperTween(object):'
 
             statsd = request.registry.statsd
             if statsd:
+                resp_code = response.status_code
+                user_id = getattr(_auth_user, 'user_id', _auth_user)
                 elapsed_time_ms = 1000.0 * total
                 statsd.timing(
                     'rhodecode_req_timing', elapsed_time_ms,
                     tags=[
                         "path:{}".format(_path),
-                        "user:{}".format(_auth_user.user_id)
+                        "user:{}".format(user_id),
+                        "code:{}".format(resp_code)
                     ]
                 )
                 statsd.incr(
                     'rhodecode_req_count', tags=[
                         "path:{}".format(_path),
-                        "user:{}".format(_auth_user.user_id)
+                        "user:{}".format(user_id),
+                        "code:{}".format(resp_code)
                     ])
 
         return response