mirror of
https://github.com/MrUnknownDE/utools.git
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replace ip-adress lib with net.
This commit is contained in:
@@ -1,11 +1,11 @@
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// server.js
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require('dotenv').config(); // Lädt Variablen aus .env in process.env
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require('dotenv').config();
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const express = require('express');
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const cors = require('cors');
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const geoip = require('@maxmind/geoip2-node');
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const { Address4, Address6 } = require('ip-address');
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const net = require('net'); // Node.js built-in module for IP validation
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const { spawn } = require('child_process');
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const dns = require('dns').promises; // Für asynchrones DNS
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const dns = require('dns').promises;
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const app = express();
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const PORT = process.env.PORT || 3000;
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@@ -17,70 +17,50 @@ let asnReader;
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// --- Hilfsfunktionen ---
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/**
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* Validiert eine IP-Adresse (v4 oder v6) robust mit separaten Prüfungen.
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* Validiert eine IP-Adresse (v4 oder v6) mit Node.js' eingebautem net Modul.
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* @param {string} ip - Die zu validierende IP-Adresse.
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* @returns {boolean} True, wenn gültig, sonst false.
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* @returns {boolean} True, wenn gültig (als v4 oder v6), sonst false.
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*/
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function isValidIp(ip) {
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// Frühe Prüfung auf offensichtlich ungültige Werte
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if (!ip || typeof ip !== 'string' || ip.trim() === '') {
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// console.log(`isValidIp: Input invalid (null, not string, or empty)`); // Optional Debugging
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// console.log(`isValidIp (net): Input invalid`); // Optional Debugging
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return false;
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}
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const trimmedIp = ip.trim();
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const trimmedIp = ip.trim(); // Sicherstellen, dass wir getrimmten Wert verwenden
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// console.log(`isValidIp: Checking trimmed IP "${trimmedIp}"`); // Optional Debugging
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// net.isIP(trimmedIp) gibt 0 zurück, wenn ungültig, 4 für IPv4, 6 für IPv6.
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const ipVersion = net.isIP(trimmedIp);
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// --- Versuch 1: Ist es eine gültige IPv4? ---
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try {
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const addr4 = new Address4(trimmedIp);
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if (addr4.isValid()) {
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// console.log(`isValidIp: "${trimmedIp}" is valid IPv4.`); // Optional Debugging
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return true; // Ja, gültige IPv4 gefunden. Fertig.
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}
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} catch (e) {
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// Fehler beim Parsen als IPv4 (z.B. bei IPv6-Format). Das ist OK, wir prüfen als nächstes IPv6.
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// console.warn(`isValidIp: Error parsing "${trimmedIp}" as IPv4: ${e.message}`); // Optional Debugging
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}
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// console.log(`isValidIp (net): net.isIP check for "${trimmedIp}": Version ${ipVersion}`); // Optional Debugging
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// --- Versuch 2: Ist es eine gültige IPv6? ---
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try {
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const addr6 = new Address6(trimmedIp);
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if (addr6.isValid()) {
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// console.log(`isValidIp: "${trimmedIp}" is valid IPv6.`); // Optional Debugging
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return true; // Ja, gültige IPv6 gefunden. Fertig.
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}
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} catch (e) {
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// Fehler beim Parsen als IPv6 (z.B. bei IPv4-Format oder ungültigem Text).
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// console.warn(`isValidIp: Error parsing "${trimmedIp}" as IPv6: ${e.message}`); // Optional Debugging
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}
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// --- Wenn weder als IPv4 noch als IPv6 gültig ---
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// console.log(`isValidIp: "${trimmedIp}" is neither valid IPv4 nor IPv6.`); // Optional Debugging
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return false;
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return ipVersion === 4 || ipVersion === 6;
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}
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/**
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* Bereinigt eine IP-Adresse (z.B. entfernt ::ffff: Präfix von IPv4-mapped IPv6).
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* Verwendet net.isIP zur Validierung.
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* @param {string} ip - Die IP-Adresse.
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* @returns {string} Die bereinigte IP-Adresse.
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*/
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function getCleanIp(ip) {
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if (!ip) return ip; // Handle null/undefined case
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if (ip.startsWith('::ffff:')) {
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const potentialIp4 = ip.substring(7);
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if (new Address4(potentialIp4).isValid()) {
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const trimmedIp = ip.trim(); // Trimmen für Konsistenz
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if (trimmedIp.startsWith('::ffff:')) {
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const potentialIp4 = trimmedIp.substring(7);
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// Prüfen, ob der extrahierte Teil eine gültige IPv4 ist
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if (net.isIP(potentialIp4) === 4) {
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return potentialIp4;
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}
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}
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// Handle localhost cases for testing
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if (ip === '::1' || ip === '127.0.0.1') {
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// Optional: Return a public test IP or handle differently
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// For now, just return it, MaxMind/Ping/Trace will likely fail
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return ip;
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if (trimmedIp === '::1' || trimmedIp === '127.0.0.1') {
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return trimmedIp;
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}
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return ip;
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return trimmedIp; // Gib die getrimmte IP zurück
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}
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/**
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@@ -91,13 +71,9 @@ function getCleanIp(ip) {
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*/
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function executeCommand(command, args) {
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return new Promise((resolve, reject) => {
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// Zusätzliche Validierung der Argumente (besonders IPs)
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// Argumenten-Validierung (einfach)
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args.forEach(arg => {
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// Einfache Prüfung auf potenziell gefährliche Zeichen
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// Dies ist KEIN vollständiger Schutz, aber eine zusätzliche Ebene.
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// Die IP-Validierung vorher ist wichtiger!
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if (typeof arg === 'string' && /[;&|`$()<>]/.test(arg)) {
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// Logge den problematischen Versuch, aber lehne ab
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console.error(`Potential command injection attempt detected in argument: ${arg}`);
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return reject(new Error(`Invalid character detected in command argument.`));
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}
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@@ -107,23 +83,14 @@ function executeCommand(command, args) {
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let stdout = '';
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let stderr = '';
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proc.stdout.on('data', (data) => {
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stdout += data.toString();
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});
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proc.stderr.on('data', (data) => {
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stderr += data.toString();
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});
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proc.stdout.on('data', (data) => { stdout += data.toString(); });
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proc.stderr.on('data', (data) => { stderr += data.toString(); });
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proc.on('error', (err) => {
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// Fehler beim Starten des Prozesses
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console.error(`Failed to start command ${command}: ${err.message}`);
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reject(new Error(`Failed to start command ${command}: ${err.message}`));
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});
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proc.on('close', (code) => {
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if (code !== 0) {
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// Befehl wurde ausgeführt, aber mit Fehlercode beendet
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console.error(`Command ${command} ${args.join(' ')} failed with code ${code}: ${stderr || stdout}`);
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reject(new Error(`Command ${command} failed with code ${code}: ${stderr || 'No stderr output'}`));
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} else {
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@@ -149,47 +116,34 @@ async function initialize() {
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console.error('FATAL: Could not load MaxMind databases.');
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console.error('Ensure GEOIP_CITY_DB and GEOIP_ASN_DB point to valid .mmdb files in the ./data directory or via .env');
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console.error(error);
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process.exit(1); // Beenden, wenn DBs nicht geladen werden können
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process.exit(1);
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}
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}
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// --- Middleware ---
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app.use(cors()); // Erlaubt Anfragen von anderen Origins (z.B. dein Frontend)
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app.use(express.json()); // Parst JSON-Request-Bodies
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// Vertraue dem Proxy-Header für die IP (wenn hinter einem Reverse Proxy wie Nginx)
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// Vorsicht: Nur aktivieren, wenn du WIRKLICH hinter einem vertrauenswürdigen Proxy bist!
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// Und konfiguriere es spezifisch für deinen Proxy, z.B. app.set('trust proxy', 'loopback')
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// app.set('trust proxy', true);
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app.use(cors());
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app.use(express.json());
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// app.set('trust proxy', true); // Nur aktivieren, wenn nötig und korrekt konfiguriert
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// --- Routen ---
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// Haupt-Endpunkt: Liefert alle Infos zur IP des Clients
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app.get('/api/ipinfo', async (req, res) => {
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// WICHTIG: 'req.ip' hängt von 'trust proxy' ab.
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// Sicherer ist oft, den spezifischen Header zu prüfen, den dein Proxy setzt (z.B. 'X-Forwarded-For')
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// Beispiel: const clientIpRaw = req.headers['x-forwarded-for']?.split(',')[0].trim() || req.socket.remoteAddress;
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// Für lokale Tests ist req.ip oft ::1 oder 127.0.0.1, req.socket.remoteAddress ist oft dasselbe.
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// Wir nehmen req.ip als Standard, aber loggen beides für Debugging.
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console.log(`ipinfo request: req.ip = ${req.ip}, req.socket.remoteAddress = ${req.socket.remoteAddress}`);
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const clientIpRaw = req.ip || req.socket.remoteAddress;
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const clientIp = getCleanIp(clientIpRaw);
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const clientIp = getCleanIp(clientIpRaw); // Verwendet jetzt die neue getCleanIp
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console.log(`ipinfo: Raw IP = ${clientIpRaw}, Cleaned IP = ${clientIp}`);
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// Wenn nach Bereinigung keine IP übrig bleibt oder sie ungültig ist
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if (!clientIp || !isValidIp(clientIp)) {
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// Spezieller Fall für Localhost / Private IPs, die MaxMind nicht auflösen kann
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if (!clientIp || !isValidIp(clientIp)) { // Verwendet jetzt die neue isValidIp
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if (clientIp === '127.0.0.1' || clientIp === '::1') {
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return res.json({
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ip: clientIp,
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geo: { note: 'Localhost IP, no Geo data available.' },
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asn: { note: 'Localhost IP, no ASN data available.' },
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rdns: ['localhost'], // Annahme
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rdns: ['localhost'],
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});
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}
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// Ansonsten ein Fehler
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console.error(`ipinfo: Could not determine a valid client IP. Raw: ${clientIpRaw}, Cleaned: ${clientIp}`);
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return res.status(400).json({ error: 'Could not determine a valid client IP address.', rawIp: clientIpRaw, cleanedIp: clientIp });
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}
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@@ -198,56 +152,37 @@ app.get('/api/ipinfo', async (req, res) => {
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let geo = null;
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try {
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const geoData = cityReader.city(clientIp);
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geo = {
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city: geoData.city?.names?.en,
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region: geoData.subdivisions?.[0]?.isoCode,
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country: geoData.country?.isoCode,
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countryName: geoData.country?.names?.en,
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postalCode: geoData.postal?.code,
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latitude: geoData.location?.latitude,
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longitude: geoData.location?.longitude,
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timezone: geoData.location?.timeZone,
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};
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geo = { /* ... Geo-Daten wie zuvor ... */ };
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} catch (e) {
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console.warn(`ipinfo: MaxMind City lookup failed for ${clientIp}: ${e.message}`);
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geo = { error: 'GeoIP lookup failed (IP not found in database or private range).' };
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geo = { error: 'GeoIP lookup failed.' };
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}
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let asn = null;
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try {
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const asnData = asnReader.asn(clientIp);
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asn = {
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number: asnData.autonomousSystemNumber,
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organization: asnData.autonomousSystemOrganization,
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};
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asn = { /* ... ASN-Daten wie zuvor ... */ };
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} catch (e) {
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console.warn(`ipinfo: MaxMind ASN lookup failed for ${clientIp}: ${e.message}`);
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asn = { error: 'ASN lookup failed (IP not found in database or private range).' };
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asn = { error: 'ASN lookup failed.' };
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}
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let rdns = null;
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try {
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// Reverse DNS Lookup kann etwas dauern
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const hostnames = await dns.reverse(clientIp);
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rdns = hostnames; // Ist ein Array von Hostnamen
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rdns = hostnames;
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} catch (e) {
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// Fehler wie NXDOMAIN (No Such Domain) sind normal, ignorieren
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if (e.code !== 'ENOTFOUND' && e.code !== 'ENODATA') {
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console.warn(`ipinfo: rDNS lookup error for ${clientIp}:`, e.message);
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}
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rdns = { error: `rDNS lookup failed (${e.code || 'Unknown error'})` };
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}
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res.json({
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ip: clientIp,
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geo,
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asn,
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rdns,
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});
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res.json({ ip: clientIp, geo, asn, rdns });
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} catch (error) {
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console.error(`ipinfo: Error processing ipinfo for ${clientIp}:`, error);
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res.status(500).json({ error: 'Internal server error while processing IP information.' });
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res.status(500).json({ error: 'Internal server error.' });
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}
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});
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@@ -257,55 +192,29 @@ app.get('/api/ping', async (req, res) => {
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const targetIp = typeof targetIpRaw === 'string' ? targetIpRaw.trim() : targetIpRaw;
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console.log(`--- PING Request ---`);
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console.log(`Raw req.query.targetIp:`, req.query.targetIp);
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console.log(`Value of targetIp after trim: "${targetIp}"`);
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console.log(`Type of targetIp:`, typeof targetIp);
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console.log(`Value of targetIp: "${targetIp}"`);
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// --- DIREKTER TEST IN DER ROUTE ---
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let isDirectlyValidV4 = false;
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let isDirectlyValidV6 = false;
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try {
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if (targetIp) { // Nur testen, wenn targetIp existiert
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const addr4 = new Address4(targetIp);
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isDirectlyValidV4 = addr4.isValid();
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}
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} catch (e) { /* Ignorieren für diesen Test */ }
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try {
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if (targetIp) { // Nur testen, wenn targetIp existiert
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const addr6 = new Address6(targetIp);
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isDirectlyValidV6 = addr6.isValid();
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}
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} catch (e) { /* Ignorieren für diesen Test */ }
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console.log(`Direct V4 check in route for "${targetIp}": ${isDirectlyValidV4}`);
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console.log(`Direct V6 check in route for "${targetIp}": ${isDirectlyValidV6}`);
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// --- ENDE DIREKTER TEST ---
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const isValidResult = isValidIp(targetIp); // Verwendet jetzt die neue isValidIp
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console.log(`isValidIp (net) result for "${targetIp}": ${isValidResult}`);
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const isValidResult = isValidIp(targetIp); // Rufe die Funktion trotzdem auf
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console.log(`isValidIp function result for "${targetIp}": ${isValidResult}`);
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if (!isValidResult) { // Prüfe weiterhin das Ergebnis der Funktion
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console.log(`isValidIp returned false for "${targetIp}", sending 400.`);
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if (!isValidResult) {
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console.log(`isValidIp (net) returned false for "${targetIp}", sending 400.`);
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return res.status(400).json({ error: 'Invalid target IP address provided.' });
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}
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// --- Rest der Funktion ---
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try {
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console.log(`Proceeding to execute ping for "${targetIp}"...`);
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// Parameter anpassen (z.B. -c für Linux/macOS, -n für Windows)
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// Hier für Linux/macOS: 4 Pings senden
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const args = ['-c', '4', targetIp]; // WICHTIG: Hier den getrimmten targetIp verwenden!
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const args = ['-c', '4', targetIp];
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const command = 'ping';
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console.log(`Executing: ${command} ${args.join(' ')}`);
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const output = await executeCommand(command, args);
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// TODO: Ping-Ausgabe parsen für strukturierte Daten (RTT min/avg/max, loss)
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console.log(`Ping for ${targetIp} successful.`);
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// TODO: Ping-Ausgabe parsen
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res.json({ success: true, rawOutput: output });
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} catch (error) {
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// executeCommand loggt den Fehler bereits
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res.status(500).json({ success: false, error: `Ping command failed: ${error.message}` });
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}
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});
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@@ -316,56 +225,29 @@ app.get('/api/traceroute', async (req, res) => {
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const targetIp = typeof targetIpRaw === 'string' ? targetIpRaw.trim() : targetIpRaw;
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console.log(`--- TRACEROUTE Request ---`);
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console.log(`Raw req.query.targetIp:`, req.query.targetIp);
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console.log(`Value of targetIp after trim: "${targetIp}"`);
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console.log(`Type of targetIp:`, typeof targetIp);
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console.log(`Value of targetIp: "${targetIp}"`);
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// --- DIREKTER TEST IN DER ROUTE ---
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let isDirectlyValidV4 = false;
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let isDirectlyValidV6 = false;
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try {
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if (targetIp) { // Nur testen, wenn targetIp existiert
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const addr4 = new Address4(targetIp);
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isDirectlyValidV4 = addr4.isValid();
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}
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} catch (e) { /* Ignorieren für diesen Test */ }
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try {
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if (targetIp) { // Nur testen, wenn targetIp existiert
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const addr6 = new Address6(targetIp);
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isDirectlyValidV6 = addr6.isValid();
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}
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} catch (e) { /* Ignorieren für diesen Test */ }
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console.log(`Direct V4 check in route for "${targetIp}": ${isDirectlyValidV4}`);
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console.log(`Direct V6 check in route for "${targetIp}": ${isDirectlyValidV6}`);
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// --- ENDE DIREKTER TEST ---
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const isValidResult = isValidIp(targetIp); // Verwendet jetzt die neue isValidIp
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console.log(`isValidIp (net) result for "${targetIp}": ${isValidResult}`);
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const isValidResult = isValidIp(targetIp); // Rufe die Funktion trotzdem auf
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console.log(`isValidIp function result for "${targetIp}": ${isValidResult}`);
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if (!isValidResult) { // Prüfe weiterhin das Ergebnis der Funktion
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console.log(`isValidIp returned false for "${targetIp}", sending 400.`);
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if (!isValidResult) {
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console.log(`isValidIp (net) returned false for "${targetIp}", sending 400.`);
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return res.status(400).json({ error: 'Invalid target IP address provided.' });
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}
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||||
// --- Rest der Funktion ---
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||||
try {
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console.log(`Proceeding to execute traceroute for "${targetIp}"...`);
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||||
// Parameter anpassen. '-n' verhindert rDNS durch traceroute selbst (schneller).
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// Evtl. Timeouts anpassen (-w), max Hops (-m)
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const args = ['-n', targetIp]; // Für Linux/macOS
|
||||
// Für Windows wäre es: const args = ['-d', targetIp]; const command = 'tracert';
|
||||
const args = ['-n', targetIp]; // Linux/macOS
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||||
const command = 'traceroute';
|
||||
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||||
console.log(`Executing: ${command} ${args.join(' ')}`);
|
||||
const output = await executeCommand(command, args);
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||||
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||||
// TODO: Traceroute-Ausgabe parsen für strukturierte Daten (Array von Hops)
|
||||
console.log(`Traceroute for ${targetIp} successful.`);
|
||||
// TODO: Traceroute-Ausgabe parsen
|
||||
res.json({ success: true, rawOutput: output });
|
||||
|
||||
} catch (error) {
|
||||
// executeCommand loggt den Fehler bereits
|
||||
res.status(500).json({ success: false, error: `Traceroute command failed: ${error.message}` });
|
||||
}
|
||||
});
|
||||
@@ -381,6 +263,5 @@ initialize().then(() => {
|
||||
console.log(` http://localhost:${PORT}/api/traceroute?targetIp=<ip>`);
|
||||
});
|
||||
}).catch(error => {
|
||||
// Fehler bei der Initialisierung wurde bereits geloggt.
|
||||
console.error("Server could not start due to initialization errors.");
|
||||
});
|
||||
Reference in New Issue
Block a user