CyTube/servcmd.sh.js

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JavaScript
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#!/usr/bin/env node
/*
** CyTube Service Socket Commandline
*/
const readline = require('readline');
const spawn = require('child_process').spawn;
const util = require('util');
const net = require('net');
const fs = require('fs');
const COMPLETIONS = [
"/delete_old_tables",
"/gc",
"/globalban",
"/reload",
"/reloadcert",
"/reload-partitions",
"/switch",
"/unglobalban",
"/unloadchan"
];
var Config = require("./lib/config");
Config.load("config.yaml");
if(!Config.get("service-socket.enabled")){
console.error('The Service Socket is not enabled.');
process.exit(1);
}
const SOCKETFILE = Config.get("service-socket.socket");
// Wipe the TTY
process.stdout.write('\x1Bc');
var commandline, eventlog, syslog, errorlog;
var client = net.createConnection(SOCKETFILE).on('connect', () => {
commandline = readline.createInterface({
input: process.stdin,
output: process.stdout,
completer: tabcomplete
});
commandline.setPrompt("> ", 2);
commandline.on("line", function(line) {
if(line === 'exit'){ return cleanup(); }
if(line === 'quit'){ return cleanup(); }
if(line.match(/^\/globalban/) && line.split(/\s+/).length === 2){
console.log('You must provide a reason')
return commandline.prompt();
}
client.write(line);
commandline.prompt();
});
commandline.on('close', function() {
return cleanup();
});
commandline.on("SIGINT", function() {
commandline.clearLine();
commandline.question("Terminate connection? ", function(answer) {
return answer.match(/^y(es)?$/i) ? cleanup() : commandline.output.write("> ");
});
});
commandline.prompt();
console.log = function() { cmdouthndlr("log", arguments); }
console.warn = function() { cmdouthndlr("warn", arguments); }
console.error = function() { cmdouthndlr("error", arguments); }
// console.info is reserved in this script for the exit message
// this prevents an extraneous final prompt from readline on terminate
eventlog = spawn('tail', ['-f', 'events.log']);
eventlog.stdout.on('data', function (data) {
console.log(data.toString().replace(/^(.+)$/mg, 'events: $1'));
});
syslog = spawn('tail', ['-f', 'sys.log']);
syslog.stdout.on('data', function (data) {
console.log(data.toString().replace(/^(.+)$/mg, 'sys: $1'));
});
errorlog = spawn('tail', ['-f', 'error.log']);
errorlog.stdout.on('data', function (data) {
console.log(data.toString().replace(/^(.+)$/mg, 'error: $1'));
});
}).on('data', (msg) => {
msg = msg.toString();
if(msg === '__disconnect'){
console.log('Server shutting down.');
return cleanup();
}
// Generic message handler
console.log('server: ', data)
}).on('error', (data) => {
console.error('Unable to connect to Service Socket.', data);
process.exit(1);
});
function cmdouthndlr(type, args) {
var t = Math.ceil((commandline.line.length + 3) / process.stdout.columns);
var text = util.format.apply(console, args);
commandline.output.write("\n\x1B[" + t + "A\x1B[0J");
commandline.output.write(text + "\n");
commandline.output.write(Array(t).join("\n\x1B[E"));
commandline._refreshLine();
}
function cleanup(){
console.info('\n',"Terminating.",'\n');
2016-07-22 01:17:38 +00:00
eventlog.kill('SIGTERM');
syslog.kill('SIGTERM');
client.end();
process.exit(0);
}
function tabcomplete(line) {
return [COMPLETIONS.filter((cv)=>{ return cv.indexOf(line) == 0; }), line];
}