// script.js - Hauptlogik für index.html (IP Info, IP Lookup, Traceroute)
document.addEventListener('DOMContentLoaded', () => {
// --- DOM Elements (User IP Info) ---
const ipAddressLinkEl = document.getElementById('ip-address-link'); // Geändert von ip-address
const ipAddressSpanEl = document.getElementById('ip-address'); // Das Span *innerhalb* des Links
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');
const geoInfo = document.getElementById('geo-info');
const asnInfo = document.getElementById('asn-info');
const rdnsInfo = document.getElementById('rdns-info');
// --- DOM Elements (Lookup) ---
const lookupIpInput = document.getElementById('lookup-ip-input');
const lookupButton = document.getElementById('lookup-button');
const lookupErrorEl = document.getElementById('lookup-error');
const lookupStatusEl = document.getElementById('lookup-status'); // Optional: für Statusmeldungen wie "Resolving..."
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');
// --- DOM Elements (Footer) ---
const commitShaEl = document.getElementById('commit-sha');
// --- Configuration ---
const API_BASE_URL = '/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) {
if (!globalErrorEl) return;
globalErrorEl.textContent = `Error: ${message}`;
globalErrorEl.classList.remove('hidden');
}
/** Versteckt globale Fehler */
function hideGlobalError() {
if (!globalErrorEl) return;
globalErrorEl.classList.add('hidden');
}
/**
* Prüft, ob der String eine gültige IPv4 oder IPv6 Adresse ist.
* @param {string} input - Der zu prüfende String.
* @returns {boolean} True, wenn es eine gültige IP ist, sonst false.
*/
function isValidIpAddress(input) {
if (!input || typeof input !== 'string') return false;
const ipv4Regex = /^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$/;
// Sehr einfache IPv6 Regex (erkennt gültige Zeichen, aber nicht alle komplexen Formate perfekt)
const ipv6Regex = /^[a-fA-F0-9:]+$/;
// Komplexere IPv6 Regex (versucht mehr Fälle abzudecken, aber immer noch nicht perfekt)
const complexIpv6Regex = /^(?:(?:[a-fA-F0-9]{1,4}:){7}[a-fA-F0-9]{1,4}|(?:[a-fA-F0-9]{1,4}:){1,7}:|(?:[a-fA-F0-9]{1,4}:){1,6}:[a-fA-F0-9]{1,4}|(?:[a-fA-F0-9]{1,4}:){1,5}(?::[a-fA-F0-9]{1,4}){1,2}|(?:[a-fA-F0-9]{1,4}:){1,4}(?::[a-fA-F0-9]{1,4}){1,3}|(?:[a-fA-F0-9]{1,4}:){1,3}(?::[a-fA-F0-9]{1,4}){1,4}|(?:[a-fA-F0-9]{1,4}:){1,2}(?::[a-fA-F0-9]{1,4}){1,5}|[a-fA-F0-9]{1,4}:(?:(?::[a-fA-F0-9]{1,4}){1,6})|:(?:(?::[a-fA-F0-9]{1,4}){1,7}|:)|fe80:(?::[a-fA-F0-9]{0,4}){0,4}%[0-9a-zA-Z]{1,}|::(?:ffff(?::0{1,4}){0,1}:){0,1}(?:(?:25[0-5]|(?:2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(?:25[0-5]|(?:2[0-4]|1{0,1}[0-9]){0,1}[0-9])|(?:[a-fA-F0-9]{1,4}:){1,4}:(?:(?:25[0-5]|(?:2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(?:25[0-5]|(?:2[0-4]|1{0,1}[0-9]){0,1}[0-9]))$/;
return ipv4Regex.test(input) || complexIpv6Regex.test(input);
}
/**
* 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)
const dataContainer = valueElement?.closest('div:not(.loader)'); // Find closest parent div that isn't a loader
if (dataContainer?.classList.contains('hidden')) {
dataContainer.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
const dataContainer = listElement?.closest('div:not(.loader)');
if (dataContainer?.classList.contains('hidden')) {
dataContainer.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 = 'No rDNS records found.'; // Klarere Meldung
}
} 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) {
if (!mapElement || !loaderElement || !messageElement) return null; // Exit if elements are missing
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 {
try {
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
} catch (e) {
console.error(`Leaflet map initialization failed for ${mapId}:`, e);
mapElement.classList.add('hidden');
messageElement.classList.remove('hidden');
messageElement.textContent = 'Error initializing map.';
return null;
}
}
// Invalidate size after showing/updating to prevent grey tiles
setTimeout(() => {
if (window[mapId + '_instance']) { // Check if map still exists
window[mapId + '_instance'].invalidateSize();
}
}, 100);
return mapInstance;
} else {
mapElement.classList.add('hidden');
messageElement.classList.remove('hidden');
messageElement.textContent = 'Map could not be loaded (missing or invalid coordinates).';
// If map existed, remove it to clean up resources
if(mapInstance) {
mapInstance.remove();
window[mapId + '_instance'] = null;
}
return null;
}
}
/** Ruft die IP-Informationen für die eigene IP ab */
async function fetchIpInfo() {
hideGlobalError();
[ipLoader, geoLoader, asnLoader, rdnsLoader, mapLoader].forEach(l => l?.classList.remove('hidden'));
// Hide data elements initially (containers are hidden by default in HTML)
if (ipAddressLinkEl) ipAddressLinkEl.classList.add('hidden'); // Hide link initially
if (mapEl) mapEl.classList.add('hidden');
// Ensure map message is hidden initially
if (mapMessageEl) mapMessageEl.classList.add('hidden');
try {
const response = await fetch(`${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;
// Update the span inside the link
updateField(ipAddressSpanEl, data.ip, ipLoader);
if (ipAddressLinkEl) {
ipAddressLinkEl.classList.remove('hidden'); // Show link element
if (data.ip) {
// Remove old listener if it exists (safety)
ipAddressLinkEl.removeEventListener('click', handleIpClick);
// Add new listener
ipAddressLinkEl.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. ${error.message}`);
[ipLoader, geoLoader, asnLoader, rdnsLoader, mapLoader].forEach(l => l?.classList.add('hidden'));
// Ensure data containers are visible to show potential errors inside them
[geoInfo, asnInfo, rdnsInfo].forEach(container => {
const dataDiv = container?.querySelector('div:not(.loader)'); // Select the data div, not the loader
if (dataDiv) dataDiv.classList.remove('hidden');
});
if (mapMessageEl) {
mapMessageEl.textContent = 'Map could not be loaded due to an error.';
mapMessageEl.classList.remove('hidden');
}
}
}
/** Ruft die Versionsinformationen (Commit SHA) ab */
async function fetchVersionInfo() {
if (!commitShaEl) return; // Don't fetch if element doesn't exist
try {
const response = await fetch(`${API_BASE_URL}/version`);
if (!response.ok) throw new Error(`Network response: ${response.statusText} (${response.status})`);
const data = await response.json();
commitShaEl.textContent = data.commitSha || 'unknown';
} catch (error) {
console.error('Failed to fetch version info:', error);
commitShaEl.textContent = 'error';
// Optionally show global error
// showGlobalError(`Could not load version info: ${error.message}`);
}
}
// --- Lookup Functions ---
/** Zeigt Fehler im Lookup-Bereich an */
function showLookupError(message) {
if (!lookupErrorEl) return;
lookupErrorEl.textContent = `Error: ${message}`;
lookupErrorEl.classList.remove('hidden');
// Hide status message if error occurs
if (lookupStatusEl) lookupStatusEl.classList.add('hidden');
}
/** Versteckt Fehler im Lookup-Bereich */
function hideLookupError() {
if (!lookupErrorEl) return;
lookupErrorEl.classList.add('hidden');
}
/** Zeigt eine Statusmeldung im Lookup-Bereich an */
function showLookupStatus(message) {
if (!lookupStatusEl) return;
lookupStatusEl.textContent = message;
lookupStatusEl.classList.remove('hidden');
hideLookupError(); // Hide errors when showing status
}
/** Versteckt die Statusmeldung im Lookup-Bereich */
function hideLookupStatus() {
if (!lookupStatusEl) return;
lookupStatusEl.classList.add('hidden');
}
/** Setzt den Lookup-Ergebnisbereich zurück */
function resetLookupResults() {
if (!lookupResultsSection) return;
lookupResultsSection.classList.add('hidden');
if (lookupResultLoader) lookupResultLoader.classList.add('hidden');
if (lookupMapLoader) lookupMapLoader.classList.add('hidden');
if (lookupMapEl) lookupMapEl.classList.add('hidden');
if (lookupMapMessageEl) lookupMapMessageEl.classList.add('hidden');
if (lookupPingResultsEl) lookupPingResultsEl.classList.add('hidden'); // Hide ping results too
if (lookupPingLoader) lookupPingLoader.classList.add('hidden');
if (lookupPingOutputEl) lookupPingOutputEl.textContent = '';
if (lookupPingErrorEl) lookupPingErrorEl.textContent = '';
hideLookupStatus(); // Hide status on reset
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 = '-';
if (lookupPingButton) lookupPingButton.disabled = true;
if (lookupTraceButton) 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(); // Reset before showing new results/loaders
hideLookupError();
hideGlobalError();
if (!lookupResultsSection || !lookupResultLoader || !lookupMapLoader) return; // Exit if elements missing
lookupResultsSection.classList.remove('hidden');
lookupResultLoader.classList.remove('hidden');
lookupMapLoader.classList.remove('hidden'); // Show map loader initially
hideLookupStatus(); // Hide status like "Resolving..."
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 ${ipToLookup}:`, data);
currentLookupIp = data.ip; // Store the IP that was actually looked up
updateField(lookupIpAddressEl, data.ip); // Display the looked-up IP
updateField(lookupCountryEl, data.geo?.countryName ? `${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);
if (lookupPingButton) lookupPingButton.disabled = false;
if (lookupTraceButton) lookupTraceButton.disabled = false;
} catch (error) {
console.error(`Failed to fetch lookup info for ${ipToLookup}:`, error);
showLookupError(`Lookup failed: ${error.message}`);
if (lookupMapMessageEl) {
lookupMapMessageEl.textContent = 'Map could not be loaded due to an error.';
lookupMapMessageEl.classList.remove('hidden');
}
if (lookupMapEl) lookupMapEl.classList.add('hidden');
if (lookupMapLoader) lookupMapLoader.classList.add('hidden'); // Hide loader on error
resetLookupResults(); // Hide the section again on error
} finally {
if (lookupResultLoader) lookupResultLoader.classList.add('hidden'); // Hide main loader
// Map loader is handled by initOrUpdateMap
}
}
/**
* Löst einen Domainnamen zu einer IP-Adresse auf (bevorzugt IPv4).
* @param {string} domain - Der aufzulösende Domainname.
* @returns {Promise} Eine Promise, die mit der IP-Adresse oder null aufgelöst wird.
*/
async function resolveDomainToIp(domain) {
console.log(`Attempting to resolve domain: ${domain}`);
try {
// 1. Versuche A Record (IPv4)
let response = await fetch(`${API_BASE_URL}/dns-lookup?domain=${encodeURIComponent(domain)}&type=A`);
let data = await response.json();
if (response.ok && data.success && data.records && Array.isArray(data.records) && data.records.length > 0) {
console.log(`Resolved ${domain} to IPv4: ${data.records[0]}`);
return data.records[0]; // Nimm die erste IPv4-Adresse
}
// 2. Wenn kein A-Record, versuche AAAA Record (IPv6)
console.log(`No A record found for ${domain}, trying AAAA.`);
response = await fetch(`${API_BASE_URL}/dns-lookup?domain=${encodeURIComponent(domain)}&type=AAAA`);
data = await response.json();
if (response.ok && data.success && data.records && Array.isArray(data.records) && data.records.length > 0) {
console.log(`Resolved ${domain} to IPv6: ${data.records[0]}`);
return data.records[0]; // Nimm die erste IPv6-Adresse
}
// 3. Wenn beides fehlschlägt oder keine Records gefunden wurden
console.warn(`Could not resolve domain ${domain} to an IP address.`);
throw new Error(data.error || 'No A or AAAA records found.');
} catch (error) {
console.error(`DNS resolution failed for ${domain}:`, error);
throw new Error(`Could not resolve domain: ${error.message}`);
}
}
// --- Ping Function (for Lookup) ---
async function runLookupPing(ip) {
if (!ip || !lookupPingResultsEl || !lookupPingLoader || !lookupPingOutputEl || !lookupPingErrorEl) return;
lookupPingResultsEl.classList.remove('hidden');
lookupPingLoader.classList.remove('hidden');
lookupPingOutputEl.textContent = '';
lookupPingErrorEl.textContent = '';
hideLookupError(); // Hide general lookup errors
try {
const response = await fetch(`${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 (!tracerouteSection || !tracerouteOutputEl || !tracerouteLoader || !tracerouteMessage) 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 ${endData.exitCode}`}.`;
displayTracerouteLine(endMessage, 'end-line');
tracerouteMessage.textContent = endMessage;
} catch (e) { displayTracerouteLine('[Traceroute finished, error parsing end event]', 'end-line'); }
tracerouteLoader.classList.add('hidden');
eventSource.close();
});
}
function displayTracerouteLine(text, className = '') {
if (!tracerouteOutputEl) return;
const lineDiv = document.createElement('div');
if (className) lineDiv.classList.add(className);
lineDiv.textContent = text;
tracerouteOutputEl.appendChild(lineDiv);
tracerouteOutputEl.scrollTop = tracerouteOutputEl.scrollHeight;
}
function displayTracerouteHop(hopData) {
if (!tracerouteOutputEl) return;
const lineDiv = document.createElement('div');
lineDiv.classList.add('hop-line');
const hopNumSpan = document.createElement('span');
hopNumSpan.classList.add('hop-number');
hopNumSpan.textContent = hopData.hop || '?';
lineDiv.appendChild(hopNumSpan);
if (hopData.ip) {
const ipSpan = document.createElement('span');
ipSpan.classList.add('hop-ip');
ipSpan.textContent = hopData.ip;
lineDiv.appendChild(ipSpan);
if (hopData.hostname) {
const hostSpan = document.createElement('span');
hostSpan.classList.add('hop-hostname');
hostSpan.textContent = ` (${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(); // Verhindert das Standardverhalten des Links (#)
if (currentIp) {
console.log(`User IP link clicked: ${currentIp}. Redirecting to WHOIS lookup...`);
// Leite zur Whois-Seite weiter und übergebe die IP als 'query'-Parameter
window.location.href = `whois-lookup.html?query=${encodeURIComponent(currentIp)}`;
} else {
console.warn('Cannot redirect to WHOIS: current IP is not available.');
}
}
async function handleLookupClick() {
if (!lookupIpInput) return;
const query = lookupIpInput.value.trim();
if (!query) {
showLookupError('Please enter an IP address or domain name.');
return;
}
resetLookupResults(); // Reset results before starting
hideLookupError();
if (isValidIpAddress(query)) {
// Input is an IP address
console.log(`Lookup button clicked for IP: ${query}`);
fetchLookupInfo(query);
} else {
// Input is likely a domain name
console.log(`Lookup button clicked for domain: ${query}`);
showLookupStatus(`Resolving domain ${query}...`); // Show status
try {
const resolvedIp = await resolveDomainToIp(query);
if (resolvedIp) {
console.log(`Domain ${query} resolved to ${resolvedIp}. Fetching lookup info...`);
// Optional: Update input field with resolved IP? Maybe not, keep original query.
// lookupIpInput.value = resolvedIp;
fetchLookupInfo(resolvedIp); // Fetch info for the resolved IP
} else {
// Should be caught by the error in resolveDomainToIp, but as a fallback:
showLookupError(`Could not resolve domain ${query} to an IP address.`);
}
} catch (error) {
showLookupError(error.message); // Display resolution error
} finally {
hideLookupStatus(); // Hide status message regardless of outcome
}
}
}
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
fetchVersionInfo(); // Lade Versionsinfo für Footer
// IP Lookup Listeners (nur wenn Elemente existieren)
if (lookupButton) lookupButton.addEventListener('click', handleLookupClick);
if (lookupIpInput) lookupIpInput.addEventListener('keypress', (event) => {
if (event.key === 'Enter') handleLookupClick();
});
if (lookupPingButton) lookupPingButton.addEventListener('click', handleLookupPingClick);
if (lookupTraceButton) lookupTraceButton.addEventListener('click', handleLookupTraceClick);
// Der Event Listener für den IP-Link wird jetzt in fetchIpInfo() hinzugefügt,
// nachdem die IP erfolgreich abgerufen wurde.
}); // End DOMContentLoaded