diff --git a/backend/server.js b/backend/server.js index e848812..a38fa6d 100644 --- a/backend/server.js +++ b/backend/server.js @@ -524,7 +524,7 @@ app.get('/api/traceroute', (req, res) => { // Beachte: nicht async, da wir strea // Lookup Endpunkt für beliebige IP app.get('/api/lookup', async (req, res) => { - // Debuggin-Logs + // Debug-Logs logger.debug({ queryParams: req.query }, 'Received query parameters for lookup'); const targetIpRaw = req.query.targetIp; // IP kommt jetzt als Query-Parameter 'ip' @@ -632,9 +632,6 @@ const signals = { 'SIGINT': 2, 'SIGTERM': 15 }; Object.keys(signals).forEach((signal) => { process.on(signal, () => { logger.info(`Received ${signal}, shutting down gracefully...`); - // Hier könnten noch offene Verbindungen geschlossen werden etc. - // z.B. server.close(() => { logger.info('HTTP server closed.'); process.exit(128 + signals[signal]); }); - // Für dieses Beispiel beenden wir direkt: process.exit(128 + signals[signal]); }); }); \ No newline at end of file diff --git a/frontend/index.html b/frontend/index.html new file mode 100644 index 0000000..308a29c --- /dev/null +++ b/frontend/index.html @@ -0,0 +1,219 @@ + + + + + + IP Info & Diagnostics + + + + + + + + + +
+ +

IP Information & Diagnostics

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Your Public IP

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+ +
+ +

Geolocation

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+ +
+ +

ASN

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+ +
+ +

Reverse DNS (rDNS)

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+ + +
+

Your Location Map

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+

IP Address Lookup

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+ + + + + + + \ No newline at end of file diff --git a/frontend/script.js b/frontend/script.js new file mode 100644 index 0000000..871e706 --- /dev/null +++ b/frontend/script.js @@ -0,0 +1,562 @@ +// script.js +document.addEventListener('DOMContentLoaded', () => { + // --- DOM Elements (User IP Info) --- + const ipAddressEl = document.getElementById('ip-address'); + const countryEl = document.getElementById('country'); + const regionEl = document.getElementById('region'); + const cityEl = document.getElementById('city'); + const postalEl = document.getElementById('postal'); + const coordsEl = document.getElementById('coords'); + const timezoneEl = document.getElementById('timezone'); + const asnNumberEl = document.getElementById('asn-number'); + const asnOrgEl = document.getElementById('asn-org'); + const rdnsListEl = document.getElementById('rdns-list'); + const mapContainer = document.getElementById('map-container'); + const mapEl = document.getElementById('map'); + const mapMessageEl = document.getElementById('map-message'); + const globalErrorEl = document.getElementById('global-error'); + const ipLoader = document.getElementById('ip-loader'); + const geoLoader = document.getElementById('geo-loader'); + const asnLoader = document.getElementById('asn-loader'); + const rdnsLoader = document.getElementById('rdns-loader'); + const mapLoader = document.getElementById('map-loader'); + const geoErrorEl = document.getElementById('geo-error'); + const asnErrorEl = document.getElementById('asn-error'); + const rdnsErrorEl = document.getElementById('rdns-error'); + + // --- DOM Elements (Lookup) --- + const lookupIpInput = document.getElementById('lookup-ip-input'); + const lookupButton = document.getElementById('lookup-button'); + const lookupErrorEl = document.getElementById('lookup-error'); + const lookupResultsSection = document.getElementById('lookup-results-section'); + const lookupIpAddressEl = document.getElementById('lookup-ip-address'); + const lookupResultLoader = document.getElementById('lookup-result-loader'); + const lookupCountryEl = document.getElementById('lookup-country'); + const lookupRegionEl = document.getElementById('lookup-region'); + const lookupCityEl = document.getElementById('lookup-city'); + const lookupPostalEl = document.getElementById('lookup-postal'); + const lookupCoordsEl = document.getElementById('lookup-coords'); + const lookupTimezoneEl = document.getElementById('lookup-timezone'); + const lookupGeoErrorEl = document.getElementById('lookup-geo-error'); + const lookupAsnNumberEl = document.getElementById('lookup-asn-number'); + const lookupAsnOrgEl = document.getElementById('lookup-asn-org'); + const lookupAsnErrorEl = document.getElementById('lookup-asn-error'); + const lookupRdnsListEl = document.getElementById('lookup-rdns-list'); + const lookupRdnsErrorEl = document.getElementById('lookup-rdns-error'); + const lookupMapContainer = document.getElementById('lookup-map-container'); + const lookupMapEl = document.getElementById('lookup-map'); + const lookupMapLoader = document.getElementById('lookup-map-loader'); + const lookupMapMessageEl = document.getElementById('lookup-map-message'); + const lookupPingButton = document.getElementById('lookup-ping-button'); + const lookupTraceButton = document.getElementById('lookup-trace-button'); + const lookupPingResultsEl = document.getElementById('lookup-ping-results'); + const lookupPingLoader = document.getElementById('lookup-ping-loader'); + const lookupPingOutputEl = document.getElementById('lookup-ping-output'); + const lookupPingErrorEl = document.getElementById('lookup-ping-error'); + + + // --- DOM Elements (Traceroute) --- + const tracerouteSection = document.getElementById('traceroute-section'); + const tracerouteOutputEl = document.querySelector('#traceroute-output pre'); + const tracerouteLoader = document.getElementById('traceroute-loader'); + const tracerouteMessage = document.getElementById('traceroute-message'); + + // --- Configuration --- + const API_BASE_URL = 'http://localhost:3000/api'; // Anpassen, falls nötig + + // --- State --- + let map = null; // Leaflet map instance for user's IP + let lookupMap = null; // Leaflet map instance for lookup results + let currentIp = null; // Store the user's fetched IP + let currentLookupIp = null; // Store the last successfully looked-up IP + let eventSource = null; // Store the EventSource instance for traceroute + + // --- Helper Functions --- + + /** Zeigt globale Fehler an */ + function showGlobalError(message) { + globalErrorEl.textContent = `Error: ${message}`; + globalErrorEl.classList.remove('hidden'); + } + + /** Versteckt globale Fehler */ + function hideGlobalError() { + globalErrorEl.classList.add('hidden'); + } + + /** + * Aktualisiert ein Info-Feld und versteckt optional einen Loader. + * @param {HTMLElement} valueElement - Das Element, das den Wert anzeigt. + * @param {any} value - Der anzuzeigende Wert oder ein Fehlerobjekt {error: string}. + * @param {HTMLElement} [loaderElement] - Das zu versteckende Loader-Element. + * @param {HTMLElement} [errorElement] - Das Element zur Anzeige von Fehlern für dieses Feld. + * @param {string} [defaultValue='-'] - Standardwert bei fehlenden Daten. + */ + function updateField(valueElement, value, loaderElement = null, errorElement = null, defaultValue = '-') { + if (loaderElement) loaderElement.classList.add('hidden'); + if (errorElement) errorElement.textContent = ''; // Clear previous error + + // Zeige das Elternelement des valueElements, falls es vorher versteckt war (für initiale Ladeanzeige) + if (valueElement?.parentElement?.classList.contains('hidden')) { + valueElement.parentElement.classList.remove('hidden'); + } + + if (value && typeof value === 'object' && value.error) { + if (valueElement) valueElement.textContent = defaultValue; + if (errorElement) errorElement.textContent = value.error; + else console.warn(`Error in field ${valueElement?.id}: ${value.error}`); + } else if (value !== null && value !== undefined && value !== '') { + if (valueElement) valueElement.textContent = value; + } else { + if (valueElement) valueElement.textContent = defaultValue; + } + } + + /** + * Aktualisiert die rDNS Liste generisch. + * @param {HTMLElement} listElement - Das UL Element. + * @param {Array|object} rdnsData - Die rDNS Daten oder ein Fehlerobjekt. + * @param {HTMLElement} [loaderElement] - Das zu versteckende Loader-Element. + * @param {HTMLElement} [errorElement] - Das Element zur Anzeige von Fehlern. + */ + function updateRdns(listElement, rdnsData, loaderElement = null, errorElement = null) { + if (loaderElement) loaderElement.classList.add('hidden'); + if (listElement) listElement.innerHTML = ''; // Clear previous entries + if (errorElement) errorElement.textContent = ''; + + // Zeige das Elternelement des listElements, falls es vorher versteckt war + if (listElement?.parentElement?.classList.contains('hidden')) { + listElement.parentElement.classList.remove('hidden'); + } + + if (rdnsData && Array.isArray(rdnsData)) { + if (rdnsData.length > 0) { + rdnsData.forEach(hostname => { + const li = document.createElement('li'); + li.textContent = hostname; + if (listElement) listElement.appendChild(li); + }); + } else { + if (listElement) listElement.innerHTML = '
  • -
    • '; + } + } else if (rdnsData && rdnsData.error) { + if (listElement) listElement.innerHTML = '
  • -
    • '; + if (errorElement) errorElement.textContent = rdnsData.error; + } else { + if (listElement) listElement.innerHTML = '
  • -
    • '; + } + } + + /** + * Initialisiert oder aktualisiert eine Leaflet-Karte. + * @param {string} mapId - Die ID des Map-Containers ('map' oder 'lookup-map'). + * @param {number|null} lat - Breitengrad. + * @param {number|null} lon - Längengrad. + * @param {HTMLElement} mapElement - Das Karten-Div. + * @param {HTMLElement} loaderElement - Das Loader-Element für die Karte. + * @param {HTMLElement} messageElement - Das Nachrichten-Element für die Karte. + * @returns {L.Map | null} Die Karteninstanz oder null bei Fehler. + */ + function initOrUpdateMap(mapId, lat, lon, mapElement, loaderElement, messageElement) { + loaderElement.classList.add('hidden'); // Hide loader first + + // Use a unique variable name for the map instance based on mapId + let mapInstance = window[mapId + '_instance']; + + if (lat != null && lon != null) { // Check for non-null coordinates + mapElement.classList.remove('hidden'); + messageElement.classList.add('hidden'); + + if (mapInstance) { + mapInstance.setView([lat, lon], 13); + mapInstance.eachLayer((layer) => { + if (layer instanceof L.Marker) mapInstance.removeLayer(layer); + }); + L.marker([lat, lon]).addTo(mapInstance).bindPopup(`Approximate Location`).openPopup(); + } else { + mapInstance = L.map(mapId).setView([lat, lon], 13); + L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', { + maxZoom: 19, + attribution: '© OpenStreetMap contributors' + }).addTo(mapInstance); + L.marker([lat, lon]).addTo(mapInstance).bindPopup(`Approximate Location`).openPopup(); + window[mapId + '_instance'] = mapInstance; // Store instance + } + // Invalidate size after showing/updating to prevent grey tiles + setTimeout(() => { + if (window[mapId + '_instance']) { // Check if map still exists + window[mapId + '_instance'].invalidateSize(); + } + }, 100); + return mapInstance; + } else { + mapElement.classList.add('hidden'); + messageElement.classList.remove('hidden'); + messageElement.textContent = 'Map could not be loaded (missing or invalid coordinates).'; + // If map existed, remove it to clean up resources + if(mapInstance) { + mapInstance.remove(); + window[mapId + '_instance'] = null; + } + return null; + } + } + + /** Ruft die IP-Informationen für die eigene IP ab */ + async function fetchIpInfo() { + hideGlobalError(); + [ipLoader, geoLoader, asnLoader, rdnsLoader, mapLoader].forEach(l => l?.classList.remove('hidden')); + // Hide data containers initially + ipAddressEl.classList.add('hidden'); + geoInfo.querySelector('div').classList.add('hidden'); + asnInfo.querySelector('div').classList.add('hidden'); + rdnsInfo.querySelector('div').classList.add('hidden'); + mapEl.classList.add('hidden'); + mapMessageEl.classList.add('hidden'); + + + try { + const response = await fetch(`${API_BASE_URL}/ipinfo`); + if (!response.ok) throw new Error(`Network response: ${response.statusText} (${response.status})`); + const data = await response.json(); + console.log('Received User IP Info:', data); + + currentIp = data.ip; + updateField(ipAddressEl, data.ip, ipLoader); + ipAddressEl.classList.remove('hidden'); // Show IP element + if (data.ip) ipAddressEl.addEventListener('click', handleIpClick); + + updateField(countryEl, data.geo?.countryName ? `${data.geo.countryName} (${data.geo.country})` : null, null, geoErrorEl); + updateField(regionEl, data.geo?.region); + updateField(cityEl, data.geo?.city); + updateField(postalEl, data.geo?.postalCode); + updateField(coordsEl, data.geo?.latitude ? `${data.geo.latitude}, ${data.geo.longitude}` : null); + updateField(timezoneEl, data.geo?.timezone, geoLoader); // Hide loader on last geo field + + updateField(asnNumberEl, data.asn?.number, null, asnErrorEl); + updateField(asnOrgEl, data.asn?.organization, asnLoader); + + updateRdns(rdnsListEl, data.rdns, rdnsLoader, rdnsErrorEl); + + map = initOrUpdateMap('map', data.geo?.latitude, data.geo?.longitude, mapEl, mapLoader, mapMessageEl); + + } catch (error) { + console.error('Failed to fetch user IP info:', error); + showGlobalError(`Could not load initial IP information. ${error.message}`); + [ipLoader, geoLoader, asnLoader, rdnsLoader, mapLoader].forEach(l => l?.classList.add('hidden')); + mapMessageEl.textContent = 'Map could not be loaded due to an error.'; + mapMessageEl.classList.remove('hidden'); + } + } + + // --- Lookup Functions --- + + /** Zeigt Fehler im Lookup-Bereich an */ + function showLookupError(message) { + lookupErrorEl.textContent = `Error: ${message}`; + lookupErrorEl.classList.remove('hidden'); + } + + /** Versteckt Fehler im Lookup-Bereich */ + function hideLookupError() { + lookupErrorEl.classList.add('hidden'); + } + + /** Setzt den Lookup-Ergebnisbereich zurück */ + function resetLookupResults() { + lookupResultsSection.classList.add('hidden'); + lookupResultLoader.classList.add('hidden'); + lookupMapLoader.classList.add('hidden'); + lookupMapEl.classList.add('hidden'); + lookupMapMessageEl.classList.add('hidden'); + lookupPingResultsEl.classList.add('hidden'); // Hide ping results too + lookupPingLoader.classList.add('hidden'); + lookupPingOutputEl.textContent = ''; + lookupPingErrorEl.textContent = ''; + + const fieldsToClear = [ + lookupIpAddressEl, lookupCountryEl, lookupRegionEl, lookupCityEl, + lookupPostalEl, lookupCoordsEl, lookupTimezoneEl, lookupAsnNumberEl, + lookupAsnOrgEl, lookupGeoErrorEl, lookupAsnErrorEl, lookupRdnsErrorEl + ]; + fieldsToClear.forEach(el => { if (el) el.textContent = ''; }); + if (lookupRdnsListEl) lookupRdnsListEl.innerHTML = '
  • -
    • '; + + lookupPingButton.disabled = true; + lookupTraceButton.disabled = true; + currentLookupIp = null; + + // Remove lookup map instance if it exists + if (window['lookup-map_instance']) { + window['lookup-map_instance'].remove(); + window['lookup-map_instance'] = null; + } + } + + /** Ruft Informationen für eine spezifische IP ab */ + async function fetchLookupInfo(ipToLookup) { + resetLookupResults(); + hideLookupError(); + hideGlobalError(); + lookupResultsSection.classList.remove('hidden'); + lookupResultLoader.classList.remove('hidden'); + lookupMapLoader.classList.remove('hidden'); // Show map loader initially + + try { + const response = await fetch(`${API_BASE_URL}/lookup?targetIp=${encodeURIComponent(ipToLookup)}`); // Use targetIp parameter + const data = await response.json(); + + if (!response.ok) { + throw new Error(data.error || `Network response: ${response.statusText} (${response.status})`); + } + + console.log(`Received Lookup Info for ${ipToLookup}:`, data); + currentLookupIp = data.ip; + + updateField(lookupIpAddressEl, data.ip); + updateField(lookupCountryEl, data.geo?.countryName ? `${data.geo.countryName} (${data.geo.country})` : null, null, lookupGeoErrorEl); + updateField(lookupRegionEl, data.geo?.region); + updateField(lookupCityEl, data.geo?.city); + updateField(lookupPostalEl, data.geo?.postalCode); + updateField(lookupCoordsEl, data.geo?.latitude ? `${data.geo.latitude}, ${data.geo.longitude}` : null); + updateField(lookupTimezoneEl, data.geo?.timezone); + + updateField(lookupAsnNumberEl, data.asn?.number, null, lookupAsnErrorEl); + updateField(lookupAsnOrgEl, data.asn?.organization); + + updateRdns(lookupRdnsListEl, data.rdns, null, lookupRdnsErrorEl); + + lookupMap = initOrUpdateMap('lookup-map', data.geo?.latitude, data.geo?.longitude, lookupMapEl, lookupMapLoader, lookupMapMessageEl); + + lookupPingButton.disabled = false; + lookupTraceButton.disabled = false; + + } catch (error) { + console.error(`Failed to fetch lookup info for ${ipToLookup}:`, error); + showLookupError(`${error.message}`); + lookupMapMessageEl.textContent = 'Map could not be loaded due to an error.'; + lookupMapMessageEl.classList.remove('hidden'); + lookupMapEl.classList.add('hidden'); + lookupMapLoader.classList.add('hidden'); // Hide loader on error + + } finally { + lookupResultLoader.classList.add('hidden'); // Hide main loader + // Map loader is handled by initOrUpdateMap + } + } + + // --- Ping Function (for Lookup) --- + async function runLookupPing(ip) { + if (!ip) return; + + lookupPingResultsEl.classList.remove('hidden'); + lookupPingLoader.classList.remove('hidden'); + lookupPingOutputEl.textContent = ''; + lookupPingErrorEl.textContent = ''; + hideLookupError(); // Hide general lookup errors + + try { + const response = await fetch(`${API_BASE_URL}/ping?targetIp=${encodeURIComponent(ip)}`); + const data = await response.json(); + + if (!response.ok || !data.success) { + throw new Error(data.error || `Ping request failed with status ${response.status}`); + } + + console.log(`Ping results for ${ip}:`, data); + + // Display parsed results nicely + let outputText = `--- Ping Statistics for ${ip} ---\n`; + if (data.stats) { + outputText += `Packets: ${data.stats.packets.transmitted} transmitted, ${data.stats.packets.received} received, ${data.stats.packets.lossPercent}% loss\n`; + if (data.stats.rtt) { + outputText += `Round Trip Time (ms): min=${data.stats.rtt.min}, avg=${data.stats.rtt.avg}, max=${data.stats.rtt.max}, mdev=${data.stats.rtt.mdev}\n`; + } else if (data.stats.packets.received === 0) { + outputText += `Status: Host unreachable or request timed out.\n`; + } + } else { + outputText += `Could not parse statistics.\n`; + } + outputText += `\n--- Raw Output ---\n${data.rawOutput || 'No raw output available.'}`; + lookupPingOutputEl.textContent = outputText; + + } catch (error) { + console.error(`Failed to run ping for ${ip}:`, error); + lookupPingErrorEl.textContent = `Ping Error: ${error.message}`; + } finally { + lookupPingLoader.classList.add('hidden'); + } + } + + + // --- Traceroute Functions --- + function startTraceroute(ip) { + if (!ip) { + showGlobalError('Cannot start traceroute: IP address is missing.'); + return; + } + if (eventSource) { + eventSource.close(); + console.log('Previous EventSource closed.'); + } + + tracerouteSection.classList.remove('hidden'); + tracerouteOutputEl.textContent = ''; + tracerouteLoader.classList.remove('hidden'); + tracerouteMessage.textContent = `Starting traceroute to ${ip}...`; + hideGlobalError(); + hideLookupError(); + + const url = `${API_BASE_URL}/traceroute?targetIp=${encodeURIComponent(ip)}`; + eventSource = new EventSource(url); + + eventSource.onopen = () => { + console.log('SSE connection opened for traceroute.'); + tracerouteMessage.textContent = `Traceroute to ${ip} in progress...`; + }; + + eventSource.onerror = (event) => { + console.error('EventSource failed:', event); + let errorMsg = 'Connection error during traceroute.'; + if (eventSource.readyState === EventSource.CLOSED) { + errorMsg = 'Connection closed. Server might have stopped or a network issue occurred.'; + } + tracerouteMessage.textContent = errorMsg; + tracerouteLoader.classList.add('hidden'); + // Don't show global error here, as it might be a normal close + eventSource.close(); + }; + + eventSource.addEventListener('hop', (event) => { + try { + const hopData = JSON.parse(event.data); + displayTracerouteHop(hopData); + } catch (e) { displayTracerouteLine(`[Error parsing hop data: ${event.data}]`, 'error-line'); } + }); + + eventSource.addEventListener('info', (event) => { + try { + const infoData = JSON.parse(event.data); + displayTracerouteLine(infoData.message, 'info-line'); + } catch (e) { displayTracerouteLine(`[Error parsing info data: ${event.data}]`, 'error-line'); } + }); + + eventSource.addEventListener('error', (event) => { // Backend error event + try { + const errorData = JSON.parse(event.data); + displayTracerouteLine(errorData.error, 'error-line'); + tracerouteMessage.textContent = `Error during traceroute: ${errorData.error}`; + } catch (e) { displayTracerouteLine(`[Received unparseable error event: ${event.data}]`, 'error-line'); } + }); + + eventSource.addEventListener('end', (event) => { + console.log('SSE connection closed by server (end event).'); + try { + const endData = JSON.parse(event.data); + const endMessage = `Traceroute finished ${endData.exitCode === 0 ? 'successfully' : `with exit code ${endData.exitCode}`}.`; + displayTracerouteLine(endMessage, 'end-line'); + tracerouteMessage.textContent = endMessage; + } catch (e) { displayTracerouteLine('[Traceroute finished, error parsing end event]', 'end-line'); } + tracerouteLoader.classList.add('hidden'); + eventSource.close(); + }); + } + + function displayTracerouteLine(text, className = '') { + const lineDiv = document.createElement('div'); + if (className) lineDiv.classList.add(className); + lineDiv.textContent = text; + tracerouteOutputEl.appendChild(lineDiv); + tracerouteOutputEl.scrollTop = tracerouteOutputEl.scrollHeight; + } + + function displayTracerouteHop(hopData) { + const lineDiv = document.createElement('div'); + lineDiv.classList.add('hop-line'); + + const hopNumSpan = document.createElement('span'); + hopNumSpan.classList.add('hop-number'); + hopNumSpan.textContent = hopData.hop || '?'; + lineDiv.appendChild(hopNumSpan); + + if (hopData.ip) { + const ipSpan = document.createElement('span'); + ipSpan.classList.add('hop-ip'); + ipSpan.textContent = hopData.ip; + lineDiv.appendChild(ipSpan); + if (hopData.hostname) { + const hostSpan = document.createElement('span'); + hostSpan.classList.add('hop-hostname'); + hostSpan.textContent = ` (${hopData.hostname})`; + lineDiv.appendChild(hostSpan); + } + } else if (hopData.rtt && hopData.rtt.every(r => r === '*')) { + const timeoutSpan = document.createElement('span'); + timeoutSpan.classList.add('hop-timeout'); + timeoutSpan.textContent = '* * *'; + lineDiv.appendChild(timeoutSpan); + } else { + lineDiv.appendChild(document.createTextNode(hopData.rawLine || 'Unknown hop format')); + } + + if (hopData.rtt && Array.isArray(hopData.rtt)) { + hopData.rtt.forEach(rtt => { + const rttSpan = document.createElement('span'); + if (rtt === '*') { + rttSpan.classList.add('hop-timeout'); + rttSpan.textContent = ' *'; + } else { + rttSpan.classList.add('hop-rtt'); + rttSpan.textContent = ` ${rtt} ms`; + } + lineDiv.appendChild(rttSpan); + }); + } + tracerouteOutputEl.appendChild(lineDiv); + tracerouteOutputEl.scrollTop = tracerouteOutputEl.scrollHeight; + } + + // --- Event Handlers --- + function handleIpClick(event) { + event.preventDefault(); + if (currentIp) { + console.log(`User IP clicked: ${currentIp}. Starting traceroute...`); + startTraceroute(currentIp); + } + } + + function handleLookupClick() { + const ipToLookup = lookupIpInput.value.trim(); + if (!ipToLookup) { + showLookupError('Please enter an IP address.'); + return; + } + console.log(`Lookup button clicked for IP: ${ipToLookup}`); + fetchLookupInfo(ipToLookup); + } + + function handleLookupPingClick() { + if (currentLookupIp) { + console.log(`Starting ping for looked-up IP: ${currentLookupIp}`); + runLookupPing(currentLookupIp); // Call the new ping function + } + } + + function handleLookupTraceClick() { + if (currentLookupIp) { + console.log(`Starting traceroute for looked-up IP: ${currentLookupIp}`); + startTraceroute(currentLookupIp); + } + } + + // --- Initial Load & Event Listeners --- + fetchIpInfo(); // Lade Infos zur eigenen IP + + lookupButton.addEventListener('click', handleLookupClick); + lookupIpInput.addEventListener('keypress', (event) => { + if (event.key === 'Enter') handleLookupClick(); + }); + lookupPingButton.addEventListener('click', handleLookupPingClick); + lookupTraceButton.addEventListener('click', handleLookupTraceClick); + +}); // End DOMContentLoaded \ No newline at end of file