# HG changeset patch
# User Kim Alvefur <zash@zash.se>
# Date 1443612973 -7200
# Node ID 99863a6a7b8c28d93ffe9aac395bebb3c355dafc
# Parent  3683eb95bc1afed25e71f1b161a00f6756dbdff4
mod_http_logging: Produce HTTP logs in the style of Apache

diff -r 3683eb95bc1a -r 99863a6a7b8c mod_http_logging/mod_http_logging.lua
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mod_http_logging/mod_http_logging.lua	Wed Sep 30 13:36:13 2015 +0200
@@ -0,0 +1,43 @@
+-- mod_http_logging
+--
+-- Copyright (C) 2015 Kim Alvefur
+--
+-- Produces HTTP logs in the style of Apache
+--
+-- TODO
+-- * Configurable format?
+
+module:set_global();
+
+local server = require "net.http.server";
+
+local send_response = server.send_response;
+local function log_and_send_response(response, body)
+	if not response.finished then
+		body = body or response.body;
+		local len = body and #body or "-";
+		local request = response.request;
+		local ip = request.conn:ip();
+		local req = string.format("%s %s HTTP/%s", request.method, request.path, request.httpversion);
+		local date = os.date("%d/%m/%Y:%H:%M:%S %z");
+		module:log("info", "%s - - [%s] \"%s\" %d %s", ip, date, req, response.status_code, tostring(len));
+	end
+	return server.send_response(response, body);
+end
+
+if module.wrap_object_event then
+	-- Use object event wrapping, allows clean unloading of the module
+	module:wrap_object_event(server._events, false, function (handlers, event_name, event_data)
+		if event_data.response then
+			event_data.response.send = log_and_send_response;
+		end
+		return handlers(event_name, event_data);
+	end);
+else
+	-- Fall back to monkeypatching, unlikely to behave nicely in the
+	-- presence of other modules also doing this
+	server.send_response = log_and_send_response;
+	function module.unload()
+		server.send_response = send_response;
+	end
+end