Edit File: internet.js
'use strict'; // @ts-check // ================================================================================== // internet.js // ---------------------------------------------------------------------------------- // Description: System Information - library // for Node.js // Copyright: (c) 2014 - 2024 // Author: Sebastian Hildebrandt // ---------------------------------------------------------------------------------- // License: MIT // ================================================================================== // 12. Internet // ---------------------------------------------------------------------------------- const util = require('./util'); let _platform = process.platform; const _linux = (_platform === 'linux' || _platform === 'android'); const _darwin = (_platform === 'darwin'); const _windows = (_platform === 'win32'); const _freebsd = (_platform === 'freebsd'); const _openbsd = (_platform === 'openbsd'); const _netbsd = (_platform === 'netbsd'); const _sunos = (_platform === 'sunos'); // -------------------------- // check if external site is available function inetChecksite(url, callback) { return new Promise((resolve) => { process.nextTick(() => { let result = { url: url, ok: false, status: 404, ms: null }; if (typeof url !== 'string') { if (callback) { callback(result); } return resolve(result); } let urlSanitized = ''; const s = util.sanitizeShellString(url, true); const l = util.mathMin(s.length, 2000); for (let i = 0; i <= l; i++) { if (s[i] !== undefined) { s[i].__proto__.toLowerCase = util.stringToLower; const sl = s[i].toLowerCase(); if (sl && sl[0] && !sl[1] && sl[0].length === 1) { urlSanitized = urlSanitized + sl[0]; } } } result.url = urlSanitized; try { if (urlSanitized && !util.isPrototypePolluted()) { urlSanitized.__proto__.startsWith = util.stringStartWith; if (urlSanitized.startsWith('file:') || urlSanitized.startsWith('gopher:') || urlSanitized.startsWith('telnet:') || urlSanitized.startsWith('mailto:') || urlSanitized.startsWith('news:') || urlSanitized.startsWith('nntp:')) { if (callback) { callback(result); } return resolve(result); } let t = Date.now(); if (_linux || _freebsd || _openbsd || _netbsd || _darwin || _sunos) { let args = ['-I', '--connect-timeout', '5', '-m', '5']; args.push(urlSanitized); let cmd = 'curl'; util.execSafe(cmd, args).then((stdout) => { const lines = stdout.split('\n'); let statusCode = lines[0] && lines[0].indexOf(' ') >= 0 ? parseInt(lines[0].split(' ')[1], 10) : 404; result.status = statusCode || 404; result.ok = (statusCode === 200 || statusCode === 301 || statusCode === 302 || statusCode === 304); result.ms = (result.ok ? Date.now() - t : null); if (callback) { callback(result); } resolve(result); }); } if (_windows) { // if this is stable, this can be used for all OS types const http = (urlSanitized.startsWith('https:') ? require('https') : require('http')); try { http.get(urlSanitized, (res) => { const statusCode = res.statusCode; result.status = statusCode || 404; result.ok = (statusCode === 200 || statusCode === 301 || statusCode === 302 || statusCode === 304); if (statusCode !== 200) { res.resume(); result.ms = (result.ok ? Date.now() - t : null); if (callback) { callback(result); } resolve(result); } else { res.on('data', () => { }); res.on('end', () => { result.ms = (result.ok ? Date.now() - t : null); if (callback) { callback(result); } resolve(result); }); } }).on('error', () => { if (callback) { callback(result); } resolve(result); }); } catch (err) { if (callback) { callback(result); } resolve(result); } } } else { if (callback) { callback(result); } resolve(result); } } catch (err) { if (callback) { callback(result); } resolve(result); } }); }); } exports.inetChecksite = inetChecksite; // -------------------------- // check inet latency function inetLatency(host, callback) { // fallback - if only callback is given if (util.isFunction(host) && !callback) { callback = host; host = ''; } host = host || '8.8.8.8'; return new Promise((resolve) => { process.nextTick(() => { if (typeof host !== 'string') { if (callback) { callback(null); } return resolve(null); } let hostSanitized = ''; const s = (util.isPrototypePolluted() ? '8.8.8.8' : util.sanitizeShellString(host, true)).trim(); const l = util.mathMin(s.length, 2000); for (let i = 0; i <= l; i++) { if (!(s[i] === undefined)) { s[i].__proto__.toLowerCase = util.stringToLower; const sl = s[i].toLowerCase(); if (sl && sl[0] && !sl[1]) { hostSanitized = hostSanitized + sl[0]; } } } hostSanitized.__proto__.startsWith = util.stringStartWith; if (hostSanitized.startsWith('file:') || hostSanitized.startsWith('gopher:') || hostSanitized.startsWith('telnet:') || hostSanitized.startsWith('mailto:') || hostSanitized.startsWith('news:') || hostSanitized.startsWith('nntp:')) { if (callback) { callback(null); } return resolve(null); } let params; if (_linux || _freebsd || _openbsd || _netbsd || _darwin) { if (_linux) { params = ['-c', '2', '-w', '3', hostSanitized]; } if (_freebsd || _openbsd || _netbsd) { params = ['-c', '2', '-t', '3', hostSanitized]; } if (_darwin) { params = ['-c2', '-t3', hostSanitized]; } util.execSafe('ping', params).then((stdout) => { let result = null; if (stdout) { const lines = stdout.split('\n').filter((line) => (line.indexOf('rtt') >= 0 || line.indexOf('round-trip') >= 0 || line.indexOf('avg') >= 0)).join('\n'); const line = lines.split('='); if (line.length > 1) { const parts = line[1].split('/'); if (parts.length > 1) { result = parseFloat(parts[1]); } } } if (callback) { callback(result); } resolve(result); }); } if (_sunos) { const params = ['-s', '-a', hostSanitized, '56', '2']; const filt = 'avg'; util.execSafe('ping', params, { timeout: 3000 }).then((stdout) => { let result = null; if (stdout) { const lines = stdout.split('\n').filter(line => line.indexOf(filt) >= 0).join('\n'); const line = lines.split('='); if (line.length > 1) { const parts = line[1].split('/'); if (parts.length > 1) { result = parseFloat(parts[1].replace(',', '.')); } } } if (callback) { callback(result); } resolve(result); }); } if (_windows) { let result = null; try { const params = [hostSanitized, '-n', '1']; util.execSafe('ping', params, util.execOptsWin).then((stdout) => { if (stdout) { let lines = stdout.split('\r\n'); lines.shift(); lines.forEach(function (line) { if ((line.toLowerCase().match(/ms/g) || []).length === 3) { let l = line.replace(/ +/g, ' ').split(' '); if (l.length > 6) { result = parseFloat(l[l.length - 1]); } } }); } if (callback) { callback(result); } resolve(result); }); } catch (e) { if (callback) { callback(result); } resolve(result); } } }); }); } exports.inetLatency = inetLatency;
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