110 lines
2.5 KiB
JavaScript
110 lines
2.5 KiB
JavaScript
const config = require("../config.json");
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const moment = require("moment");
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// constants
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const LOG_PREFIX_DEBUG = "debug";
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const LOG_PREFIX_INFO = "info";
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const LOG_PREFIX_WARNING = "warning";
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const LOG_PREFIX_ERROR = "error";
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const LOGLEVEL_DEBUG = 0;
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const LOGLEVEL_INFO = 1;
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const LOGLEVEL_WARNING = 2;
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const LOGLEVEL_ERROR = 3;
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// set loglevel on "require"
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const loglevel = function() {
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switch (config.log.level) {
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case LOG_PREFIX_DEBUG:
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case LOGLEVEL_DEBUG:
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return LOGLEVEL_DEBUG;
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case LOG_PREFIX_INFO:
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case LOGLEVEL_INFO:
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return LOGLEVEL_INFO;
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case LOG_PREFIX_WARNING:
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case LOGLEVEL_WARNING:
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return LOGLEVEL_WARNING;
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case LOG_PREFIX_ERROR:
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case LOGLEVEL_ERROR:
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return LOGLEVEL_ERROR;
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default:
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return LOGLEVEL_INFO;
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}
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}();
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// log a http request
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function request(request) {
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let message = "[" + request.method + "] url: \"" + request.url + "\"";
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let counter = 1;
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for (let param in request.body) {
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message += ", parameter " + counter + ": \"" + param + "=" + request.body[param] + "\"";
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counter++;
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}
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debug(message.trim());
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}
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// prefix log with "info"
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function info(message) {
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if (loglevel > LOGLEVEL_INFO) {
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return;
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}
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trace(message);
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}
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// prefix log with "info"
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function warn(message) {
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if (loglevel > LOGLEVEL_WARNING) {
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return;
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}
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trace(message, "warning");
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}
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// prefix log with "debug"
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function debug(message) {
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if (loglevel > LOGLEVEL_DEBUG) {
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return;
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}
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trace(message, "debug");
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}
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// prefix log with "error"
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function error(message) {
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if (loglevel > LOGLEVEL_ERROR) {
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return;
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}
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trace(message, "error");
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}
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// default logging function
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function trace(message, prefix) {
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if (message === undefined || message === null || message.length === 0) {
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return;
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}
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if (prefix === undefined || prefix === null || prefix.length === 0) {
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prefix = "info";
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}
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let print;
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switch (prefix) {
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case "error":
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print = console.error;
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break;
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case "debug":
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print = console.debug;
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break;
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case "warning":
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print = console.warn;
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break;
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default:
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print = console.log;
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}
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message = moment().format(config.server.timestamp) + " | " + prefix + " > " + message;
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print(message);
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}
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// exports
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module.exports = {
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info,
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warn,
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debug,
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error,
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request
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}; |