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auth.rxbn.de/bin/logs/module.js

94 lines
2.2 KiB
JavaScript

var methods = {};
let fs = require('fs');
let util = require('util');
var cfg = require(global['__dirname']+'/bin/config');
// save new line to file
newLine = (prefix, obj) => {
let date = new Date(); // current date
let filename = cfg.log.filename(); // filename
let dir = cfg.log.directory(); // directory
let path = dir + filename; // filepath
let fs_options = { // fs options for encoding, file mode and file flag
encoding: "utf8",
flag: "a+" // Open file for reading and appending. The file is created if it does not exist.
};
let date_string =
("0" + date.getUTCHours()).slice(-2) + ":" +
("0" + date.getUTCMinutes()).slice(-2) + ":" +
("0" + date.getUTCSeconds()).slice(-2);
// directory not existing; create directory
if(!fs.existsSync(dir)) {
fs.mkdir(dir, (err) => {
if(err) throw err;
});
}
// type matching
if(
typeof obj == "string" ||
typeof obj == "number" ||
typeof obj == "boolean"
) fs.appendFileSync(path, prefix + " " + date_string + " | " + obj + "\n", fs_options);
else
if(typeof obj == "object") {
let lines = JSON.stringify(obj, null, '\t'); // prettyprint obj as JSON
lines.split(/\r?\n/).forEach((line) => { // for each linebreak (\r | \n)
fs.appendFileSync(path, prefix + " " + date_string + " | " + line + "\n", fs_options);
});
} else {
// do nothing; not supported
// typeof obj == "symbol"
// typeof obj == "undefined"
// typeof obj == "function"
}
};
log = (fn, ...data) => {
if(data.length == 1) data = data[0];
fn.apply(null, data);
}
// LOG | INFO
methods.log = (...data) => {
log(console.log, data);
if(data.length == 1) data = data[0];
newLine(" [LOG]", data);
};
methods.info = methods.log;
// WARNING
methods.warn = (...data) => {
log(console.warn, data);
if(data.length == 1) data = data[0];
newLine(" [WARN]", data);
};
// ERROR
methods.error = (...data) => {
log(console.error, data);
if(data.length == 1) data = data[0];
newLine("[ERROR]", data);
};
methods.err = methods.error;
// DEBUG
methods.debug = (...data) => {
if(global['debug'] === true) {
log(console.log, data);
if(data.length == 1) data = data[0];
newLine("[DEBUG]", data);
}
};
module.exports = methods;