Initial Commit

core/Auth.php

@@ -0,0 +1,59 @@
+<?php
+
+namespace Core;
+
+class Auth
+{
+    /**
+     * Check if user is authenticated
+     */
+    public static function check(): bool
+    {
+        return isset($_SESSION['user_id']);
+    }
+
+    /**
+     * Get current user ID
+     */
+    public static function id(): ?int
+    {
+        return $_SESSION['user_id'] ?? null;
+    }
+
+    /**
+     * Get current username
+     */
+    public static function username(): ?string
+    {
+        return $_SESSION['username'] ?? null;
+    }
+
+    /**
+     * Get current user's full name
+     */
+    public static function fullName(): ?string
+    {
+        return $_SESSION['full_name'] ?? null;
+    }
+
+    /**
+     * Require authentication (redirect to login if not authenticated)
+     */
+    public static function require(): void
+    {
+        // Get current path
+        $currentPath = parse_url($_SERVER['REQUEST_URI'] ?? '/', PHP_URL_PATH);
+        
+        // Don't redirect if already on login page or logout
+        if ($currentPath === '/login' || $currentPath === '/logout') {
+            return;
+        }
+        
+        if (!self::check()) {
+            $_SESSION['error'] = 'Please login to continue';
+            header('Location: /login');
+            exit;
+        }
+    }
+}
+