mod_http_logging/mod_http_logging.lua
changeset 1886 99863a6a7b8c
child 1887 c625ed20ebda
equal deleted inserted replaced
1885:3683eb95bc1a 1886:99863a6a7b8c
       
     1 -- mod_http_logging
       
     2 --
       
     3 -- Copyright (C) 2015 Kim Alvefur
       
     4 --
       
     5 -- Produces HTTP logs in the style of Apache
       
     6 --
       
     7 -- TODO
       
     8 -- * Configurable format?
       
     9 
       
    10 module:set_global();
       
    11 
       
    12 local server = require "net.http.server";
       
    13 
       
    14 local send_response = server.send_response;
       
    15 local function log_and_send_response(response, body)
       
    16 	if not response.finished then
       
    17 		body = body or response.body;
       
    18 		local len = body and #body or "-";
       
    19 		local request = response.request;
       
    20 		local ip = request.conn:ip();
       
    21 		local req = string.format("%s %s HTTP/%s", request.method, request.path, request.httpversion);
       
    22 		local date = os.date("%d/%m/%Y:%H:%M:%S %z");
       
    23 		module:log("info", "%s - - [%s] \"%s\" %d %s", ip, date, req, response.status_code, tostring(len));
       
    24 	end
       
    25 	return server.send_response(response, body);
       
    26 end
       
    27 
       
    28 if module.wrap_object_event then
       
    29 	-- Use object event wrapping, allows clean unloading of the module
       
    30 	module:wrap_object_event(server._events, false, function (handlers, event_name, event_data)
       
    31 		if event_data.response then
       
    32 			event_data.response.send = log_and_send_response;
       
    33 		end
       
    34 		return handlers(event_name, event_data);
       
    35 	end);
       
    36 else
       
    37 	-- Fall back to monkeypatching, unlikely to behave nicely in the
       
    38 	-- presence of other modules also doing this
       
    39 	server.send_response = log_and_send_response;
       
    40 	function module.unload()
       
    41 		server.send_response = send_response;
       
    42 	end
       
    43 end