Diverse anpassungen

routes/auth-routes.js

@@ -5,6 +5,40 @@ const { db } = require('../database');
 const LDAPService = require('../services/ldap-service');
 const { getDefaultRole } = require('../helpers/utils');
 
+// Helper-Funktion für UTF-8 Debug-Logging
+function logUsernameEncoding(label, username) {
+  if (!username) {
+    console.log(`[${label}] Username is null or undefined`);
+    return;
+  }
+  
+  console.group(`🔍 ${label} - Server Console`);
+  console.log('Original String:', username);
+  console.log('String Length:', username.length);
+  console.log('Type:', typeof username);
+  
+  // UTF-8 Byte-Repräsentation
+  const utf8Bytes = Buffer.from(username, 'utf8');
+  console.log('UTF-8 Bytes:', Array.from(utf8Bytes));
+  console.log('UTF-8 Bytes (Hex):', Array.from(utf8Bytes).map(b => '0x' + b.toString(16).padStart(2, '0')).join(' '));
+  
+  // Einzelne Zeichen analysieren
+  console.log('=== Character Analysis ===');
+  for (let i = 0; i < username.length; i++) {
+    const char = username[i];
+    const codePoint = char.codePointAt(0);
+    const utf8BytesForChar = Buffer.from(char, 'utf8');
+    console.log(`Position ${i}: "${char}" | CodePoint: U+${codePoint.toString(16).toUpperCase().padStart(4, '0')} (${codePoint}) | UTF-8 Bytes: [${Array.from(utf8BytesForChar).join(', ')}]`);
+  }
+  
+  // URL-Encoding Test
+  console.log('=== URL Encoding Test ===');
+  console.log('encodeURIComponent(username):', encodeURIComponent(username));
+  console.log('encodeURI(username):', encodeURI(username));
+  
+  console.groupEnd();
+}
+
 // Helper-Funktion für erfolgreiche Anmeldung
 function handleSuccessfulLogin(req, res, user, rememberMe = false) {
   // Rollen als JSON-Array parsen
@@ -66,6 +100,12 @@ function registerAuthRoutes(app) {
     const { username, password, remember_me } = req.body;
     const rememberMe = remember_me === 'on' || remember_me === true;
     
+    // Debug-Logging: Empfangener Username vom Client
+    console.log('\n========== LOGIN REQUEST RECEIVED ==========');
+    logUsernameEncoding('Username received from client', username);
+    console.log('Request headers content-type:', req.headers['content-type']);
+    console.log('Request body keys:', Object.keys(req.body));
+    
     // Prüfe ob LDAP aktiviert ist
     LDAPService.getConfig((err, ldapConfig) => {
       if (err) {
@@ -73,11 +113,20 @@ function registerAuthRoutes(app) {
       }
       
       const isLDAPEnabled = ldapConfig && ldapConfig.enabled === 1;
+      console.log('LDAP enabled:', isLDAPEnabled);
       
       // Wenn LDAP aktiviert ist, authentifiziere gegen LDAP
       if (isLDAPEnabled) {
+        console.log('Starting LDAP authentication...');
         LDAPService.authenticate(username, password, (authErr, authSuccess, ldapUserInfo) => {
+          console.log('\n========== LDAP AUTHENTICATION RESULT ==========');
+          console.log('authErr:', authErr ? authErr.message : null);
+          console.log('authSuccess:', authSuccess);
+          console.log('ldapUserInfo:', ldapUserInfo);
+          
           if (authErr || !authSuccess) {
+            console.log('LDAP authentication failed, trying local database fallback...');
+            logUsernameEncoding('Username for DB fallback lookup', username);
             // LDAP-Authentifizierung fehlgeschlagen - prüfe lokale Datenbank als Fallback
             db.get('SELECT * FROM users WHERE username = ? COLLATE NOCASE', [username], (err, user) => {
               if (err || !user) {
@@ -94,6 +143,10 @@ function registerAuthRoutes(app) {
             // LDAP-Authentifizierung erfolgreich - Benutzer anhand des kanonischen LDAP-Benutzernamens aus der DB holen
             // (Sync speichert den exakten LDAP-Wert, z. B. "geißlerj" oder "GeisslerJ")
             const dbLookupUsername = (ldapUserInfo && ldapUserInfo.username) ? ldapUserInfo.username : username;
+            console.log('LDAP authentication successful!');
+            console.log('Original username:', username);
+            console.log('Canonical username from LDAP:', dbLookupUsername);
+            logUsernameEncoding('Canonical username for DB lookup', dbLookupUsername);
             db.get('SELECT * FROM users WHERE username = ? COLLATE NOCASE', [dbLookupUsername], (err, user) => {
               if (err || !user) {
                 return res.render('login', { error: 'Benutzer nicht in der Datenbank gefunden. Bitte führen Sie eine LDAP-Synchronisation durch.' });