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mod_log_json/mod_log_json.lua @ 4976:75b6e5df65f9
various: Improve error reporting if missing file server module on 0.12
If there is some error loading net.http.files then it would be swallowed
by the pcall and then it would proceed to trying mod_http_files, which
might cause unexpected behavior on 0.12
Ref #1765
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Mon, 18 Jul 2022 22:47:54 +0200 |
parent | 4974:807007913f67 |
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local pack = table.pack or require "util.table".pack; local json = require "util.json"; local array = require "util.array"; local datetime = require "util.datetime".datetime; local socket = require "socket"; module:set_global(); local function sink_maker(config) local send = function () end if config.filename then local logfile = io.open(config.filename, "a+"); logfile:setvbuf("no"); function send(payload) logfile:write(payload, "\n"); end elseif config.udp_host and config.udp_port then local conn = socket.udp(); conn:setpeername(config.udp_host, config.udp_port); function send(payload) conn:send(payload); end end local format = require "util.format".format; local do_format = config.formatted_as or false; return function (source, level, message, ...) local args = pack(...); for i = 1, args.n do if args[i] == nil then args[i] = json.null; elseif type(args[i]) ~= "string" or type(args[i]) ~= "number" then args[i] = tostring(args[i]); end end args.n = nil; local payload = { datetime = datetime(), source = source, level = level, message = message, args = array(args); }; if do_format then payload[do_format] = format(message, ...) end send(json.encode(payload)); end end function module.unload() -- deregister require"core.loggingmanager".register_sink_type("json", nil); end require"core.loggingmanager".register_sink_type("json", sink_maker);