Merge origin/master

auto-claude: 044-implement-server-side-route-protection-for-dashboa

src/components/auth/LoginForm.tsx

@@ -2,9 +2,10 @@
 
 import { useState } from 'react';
 import { useRouter } from 'next/navigation';
-import { Lock, Loader2 } from 'lucide-react';
+import { Lock, Loader2, AlertCircle } from 'lucide-react';
 import { useTranslations, useLocale } from 'next-intl';
 import { createClient } from '@/lib/supabase/client';
+import { rateLimiter } from '../../utils/rateLimiting';
 
 export default function LoginForm() {
   const t = useTranslations('login');
@@ -14,20 +15,48 @@ export default function LoginForm() {
   const [password, setPassword] = useState('');
   const [loading, setLoading] = useState(false);
   const [error, setError] = useState<string | null>(null);
+  const [remainingAttempts, setRemainingAttempts] = useState<number | null>(null);
+  const [isLockedOut, setIsLockedOut] = useState(false);
+  const [lockoutMinutes, setLockoutMinutes] = useState(0);
 
   const handleLogin = async (e: React.FormEvent) => {
     e.preventDefault();
     setLoading(true);
     setError(null);
+    setRemainingAttempts(null);
+    setIsLockedOut(false);
 
     try {
+      // Rate limiting per browser session (client-side UX protection)
+      // Real brute-force protection relies on Supabase's server-side rate limiting
+      const clientIp = '127.0.0.1';
+
+      // Check if already locked out BEFORE attempting auth
+      if (rateLimiter.isRateLimited(clientIp)) {
+        const timeToReset = Math.ceil(rateLimiter.getTimeToReset(clientIp) / 1000 / 60);
+        setIsLockedOut(true);
+        setLockoutMinutes(timeToReset);
+        const unit = timeToReset === 1 ? t('rateLimit.locked.minute') : t('rateLimit.locked.minutes');
+        throw new Error(t('rateLimit.locked.message', { minutes: timeToReset, unit }));
+      }
+
       const supabase = createClient();
       const { error } = await supabase.auth.signInWithPassword({
         email,
         password,
       });
 
-      if (error) throw error;
+      if (error) {
+        // Only track FAILED attempts
+        rateLimiter.trackFailedAttempt(clientIp);
+
+        // Get remaining attempts after tracking the failure
+        const remaining = rateLimiter.getRemainingAttempts(clientIp);
+        setRemainingAttempts(remaining);
+        throw error;
+      }
+
+      // Success - DON'T track, just redirect
       router.push(`/${locale}/dashboard`);
     } catch (err) {
       setError(err instanceof Error ? err.message : t('form.errors.default'));
@@ -45,9 +74,35 @@ export default function LoginForm() {
         </div>
 
         <form className="mt-8 space-y-6" onSubmit={handleLogin}>
-          {error && (
-            <div className="bg-red-500/10 border border-red-500/20 text-red-500 p-4 rounded-lg text-sm">
-              {error}
+          {isLockedOut && (
+            <div className="bg-red-500/10 border border-red-500/20 text-red-500 p-4 rounded-lg flex items-center">
+              <AlertCircle className="h-5 w-5 mr-2 flex-shrink-0" />
+              <div>
+                <p className="font-medium">{t('rateLimit.locked.title')}</p>
+                <p className="text-sm mt-1">
+                  {t('rateLimit.locked.message', {
+                    minutes: lockoutMinutes,
+                    unit: lockoutMinutes === 1 ? t('rateLimit.locked.minute') : t('rateLimit.locked.minutes')
+                  })}
+                </p>
+              </div>
+            </div>
+          )}
+
+          {error && !isLockedOut && (
+            <div className="bg-red-500/10 border border-red-500/20 text-red-500 p-4 rounded-lg">
+              <div className="flex items-center">
+                <AlertCircle className="h-5 w-5 mr-2 flex-shrink-0" />
+                <span>{error}</span>
+              </div>
+              {remainingAttempts !== null && remainingAttempts > 0 && (
+                <p className="text-sm mt-2 ml-7">
+                  {t('rateLimit.warning.message', {
+                    attempts: remainingAttempts,
+                    unit: remainingAttempts === 1 ? t('rateLimit.warning.attempt') : t('rateLimit.warning.attempts')
+                  })}
+                </p>
+              )}
             </div>
           )}
 

src/i18n/locales-old/de/pages/login.ts

@@ -0,0 +1,68 @@
+// src/i18n/locales/de/pages/login.ts
+export const login = {
+    // SEO
+    seo: {
+        title: 'Login',
+        description: 'Anmelden für Zugriff auf das Dashboard'
+    },
+    // Hauptüberschrift
+    header: {
+        title: 'Im Dashboard anmelden'
+    },
+    // Formular
+    form: {
+        // Felder
+        email: {
+            label: 'E-Mail-Adresse',
+            placeholder: 'ihre.email@beispiel.de'
+        },
+        password: {
+            label: 'Passwort',
+            placeholder: 'Ihr Passwort'
+        },
+        // Buttons
+        submit: {
+            default: 'Anmelden',
+            loading: 'Anmeldung läuft...'
+        },
+        // Fehlermeldungen
+        errors: {
+            default: 'Ein Fehler ist aufgetreten',
+            invalidCredentials: 'Ungültige Anmeldedaten',
+            emailRequired: 'Bitte geben Sie Ihre E-Mail-Adresse ein',
+            passwordRequired: 'Bitte geben Sie Ihr Passwort ein',
+            emailInvalid: 'Bitte geben Sie eine gültige E-Mail-Adresse ein'
+        }
+    },
+    // Links und Hilfe
+    help: {
+        forgotPassword: 'Passwort vergessen?',
+        needHelp: 'Benötigen Sie Hilfe?',
+        contactSupport: 'Support kontaktieren'
+    },
+    // Statusmeldungen
+    status: {
+        authenticating: 'Authentifizierung...',
+        success: 'Erfolgreich angemeldet',
+        redirecting: 'Weiterleitung zum Dashboard...'
+    },
+    // Sicherheitshinweise
+    security: {
+        secureConnection: 'Sichere Verbindung',
+        privacyNote: 'Ihre Daten werden verschlüsselt übertragen'
+    },
+    // Ratenbegrenzung
+    rateLimit: {
+        locked: {
+            title: 'Konto vorübergehend gesperrt',
+            message: 'Zu viele fehlgeschlagene Anmeldeversuche. Bitte versuchen Sie es in {minutes} {unit} erneut.',
+            minute: 'Minute',
+            minutes: 'Minuten'
+        },
+        warning: {
+            message: '{attempts} {unit} verbleibend vor vorübergehender Sperrung.',
+            attempt: 'Versuch',
+            attempts: 'Versuche'
+        }
+    }
+};

src/i18n/locales-old/en/pages/login.ts

@@ -0,0 +1,68 @@
+// src/i18n/locales/en/pages/login.ts
+export const login = {
+    // SEO
+    seo: {
+        title: 'Login',
+        description: 'Sign in to access the dashboard'
+    },
+    // Main heading
+    header: {
+        title: 'Sign in to Dashboard'
+    },
+    // Form
+    form: {
+        // Fields
+        email: {
+            label: 'Email Address',
+            placeholder: 'your.email@example.com'
+        },
+        password: {
+            label: 'Password',
+            placeholder: 'Your password'
+        },
+        // Buttons
+        submit: {
+            default: 'Sign In',
+            loading: 'Signing in...'
+        },
+        // Error messages
+        errors: {
+            default: 'An error has occurred',
+            invalidCredentials: 'Invalid credentials',
+            emailRequired: 'Please enter your email address',
+            passwordRequired: 'Please enter your password',
+            emailInvalid: 'Please enter a valid email address'
+        }
+    },
+    // Links and help
+    help: {
+        forgotPassword: 'Forgot Password?',
+        needHelp: 'Need Help?',
+        contactSupport: 'Contact Support'
+    },
+    // Status messages
+    status: {
+        authenticating: 'Authenticating...',
+        success: 'Successfully signed in',
+        redirecting: 'Redirecting to dashboard...'
+    },
+    // Security notices
+    security: {
+        secureConnection: 'Secure Connection',
+        privacyNote: 'Your data is transmitted encrypted'
+    },
+    // Rate limiting
+    rateLimit: {
+        locked: {
+            title: 'Account temporarily locked',
+            message: 'Too many failed login attempts. Please try again in {minutes} {unit}.',
+            minute: 'minute',
+            minutes: 'minutes'
+        },
+        warning: {
+            message: '{attempts} {unit} remaining before temporary lockout.',
+            attempt: 'attempt',
+            attempts: 'attempts'
+        }
+    }
+};

src/i18n/locales-old/sr/pages/login.ts

@@ -0,0 +1,68 @@
+// src/i18n/locales/sr/pages/login.ts
+export const login = {
+    // SEO
+    seo: {
+        title: 'Prijava',
+        description: 'Prijavite se za pristup dashboard-u'
+    },
+    // Glavni naslov
+    header: {
+        title: 'Prijava na dashboard'
+    },
+    // Formular
+    form: {
+        // Polja
+        email: {
+            label: 'E-mail adresa',
+            placeholder: 'vas.email@primer.com'
+        },
+        password: {
+            label: 'Lozinka',
+            placeholder: 'Vaša lozinka'
+        },
+        // Dugmad
+        submit: {
+            default: 'Prijavi se',
+            loading: 'Prijava u toku...'
+        },
+        // Poruke o greškama
+        errors: {
+            default: 'Došlo je do greške',
+            invalidCredentials: 'Neispravni podaci za prijavu',
+            emailRequired: 'Molimo unesite vašu e-mail adresu',
+            passwordRequired: 'Molimo unesite vašu lozinku',
+            emailInvalid: 'Molimo unesite važeću e-mail adresu'
+        }
+    },
+    // Linkovi i pomoć
+    help: {
+        forgotPassword: 'Zaboravili ste lozinku?',
+        needHelp: 'Potrebna vam je pomoć?',
+        contactSupport: 'Kontaktirajte podršku'
+    },
+    // Status poruke
+    status: {
+        authenticating: 'Autentifikacija...',
+        success: 'Uspešna prijava',
+        redirecting: 'Preusmeravanje na dashboard...'
+    },
+    // Bezbednosna obaveštenja
+    security: {
+        secureConnection: 'Bezbedna veza',
+        privacyNote: 'Vaši podaci se prenose u šifrovanom obliku'
+    },
+    // Ograničenje broja pokušaja
+    rateLimit: {
+        locked: {
+            title: 'Nalog privremeno zaključan',
+            message: 'Previše neuspešnih pokušaja prijave. Molimo pokušajte ponovo za {minutes} {unit}.',
+            minute: 'minut',
+            minutes: 'minuta'
+        },
+        warning: {
+            message: '{attempts} {unit} preostalo pre privremenog zaključavanja.',
+            attempt: 'pokušaj',
+            attempts: 'pokušaja'
+        }
+    }
+};

src/utils/rateLimiting.ts

@@ -1,13 +1,22 @@
 /**
+<<<<<<< HEAD
+ * Client-side rate limiter for UX protection.
+ * This provides immediate user feedback but does NOT prevent
+ * server-side brute force attacks. Relies on Supabase's
+ * built-in server-side rate limiting for actual security.
+ */
+
+=======
  * Rate limit entry tracking request count and timestamp
  */
+>>>>>>> origin/master
 interface RateLimitEntry {
   count: number;
   timestamp: number;
 }
 
-const WINDOW_SIZE_MS = 3600000; // 1 hour
-const MAX_REQUESTS = 5; // Maximum requests per hour
+const WINDOW_SIZE_MS = 900000; // 15 minutes
+const MAX_REQUESTS = 5; // Maximum requests per window
 
 /**
  * Rate Limiter for API request throttling
@@ -28,21 +37,28 @@ class RateLimiter {
     const entry = this.cache.get(ip);
 
     if (!entry) {
-      this.cache.set(ip, { count: 1, timestamp: now });
-      return false;
+      return false;  // No entry = not limited
     }
 
     if (now - entry.timestamp > WINDOW_SIZE_MS) {
-      this.cache.set(ip, { count: 1, timestamp: now });
+      // Window expired - clear entry and allow
+      this.cache.delete(ip);
       return false;
     }
 
-    if (entry.count >= MAX_REQUESTS) {
-      return true;
-    }
+    // Check if at or over limit (don't increment here)
+    return entry.count >= MAX_REQUESTS;
+  }
 
-    entry.count++;
-    return false;
+  trackFailedAttempt(ip: string): void {
+    const now = Date.now();
+    const entry = this.cache.get(ip);
+
+    if (!entry || now - entry.timestamp > WINDOW_SIZE_MS) {
+      this.cache.set(ip, { count: 1, timestamp: now });
+    } else {
+      entry.count++;
+    }
   }
 
   /**