adding posibility to disable user registration

backend/api/index.php

@@ -23,7 +23,7 @@ $path = str_replace('/api/', '', $path);
 $segments = explode('/', trim($path, '/'));
 $resource = $segments[0] ?? '';
 
-if ($resource !== 'session' && $resource !== 'login' && $resource !== 'logout') {
+if ($resource !== 'session' && $resource !== 'login' && $resource !== 'logout' && $resource !== 'registration') {
     $loggedin = isset($_SESSION['neptune_loggedin']) && $_SESSION['neptune_loggedin'] === true;
     if (!$loggedin) {
         http_response_code(401);
@@ -70,6 +70,9 @@ try {
         case 'shapes':
             handleShapes($method, $id, $db);
             break;
+        case 'registration':
+            handleRegistration($method, $db);
+            break;
         default:
             http_response_code(404);
             echo json_encode(['error' => 'Not found']);
@@ -79,6 +82,28 @@ try {
     echo json_encode(['error' => $e->getMessage()]);
 }
 
+function handleRegistration($method, $db) {
+    if ($method === 'GET') {
+        $stmt = $db->prepare("SELECT setting_value FROM neptune_settings WHERE setting_key = 'registration_enabled'");
+        $stmt->execute();
+        $row = $stmt->fetch();
+        $enabled = $row ? $row['setting_value'] !== '0' : true;
+        echo json_encode(['registration_enabled' => $enabled]);
+    } elseif ($method === 'POST') {
+        $role = $_SESSION['neptune_role'] ?? 'user';
+        if ($role !== 'admin') {
+            http_response_code(403);
+            echo json_encode(['error' => 'Admins only']);
+            return;
+        }
+        $data = json_decode(file_get_contents('php://input'), true);
+        $enabled = isset($data['registration_enabled']) ? ($data['registration_enabled'] ? '1' : '0') : '1';
+        $stmt = $db->prepare("INSERT INTO neptune_settings (setting_key, setting_value) VALUES ('registration_enabled', ?) ON DUPLICATE KEY UPDATE setting_value = ?");
+        $stmt->execute([$enabled, $enabled]);
+        echo json_encode(['status' => 'success', 'registration_enabled' => $enabled === '1']);
+    }
+}
+
 function handleSession($method, $db) {
     $loggedin = isset($_SESSION['neptune_loggedin']) && $_SESSION['neptune_loggedin'] === true;
     if (!$loggedin && $method === 'GET') {
@@ -152,6 +177,15 @@ function handleLogin($method, $db) {
         $_SESSION['neptune_username'] = $user['username'];
         $_SESSION['neptune_role'] = $user['role'];
     } else {
+        $stmt = $db->prepare("SELECT setting_value FROM neptune_settings WHERE setting_key = 'registration_enabled'");
+        $stmt->execute();
+        $regSetting = $stmt->fetch();
+        $registrationEnabled = $regSetting ? $regSetting['setting_value'] !== '0' : true;
+        if (!$registrationEnabled) {
+            http_response_code(403);
+            echo json_encode(['error' => 'Registration is disabled by admin']);
+            return;
+        }
         $count = $db->query("SELECT COUNT(*) as c FROM neptune_users")->fetch()['c'];
         $role = ($count == 0) ? 'admin' : 'user';
         $stmt = $db->prepare("INSERT INTO neptune_users (user_token, username, email, role) VALUES (?, ?, ?, ?)");

backend/config/database.php

@@ -54,4 +54,15 @@ function migrate($db) {
         $rootDb->exec("ALTER TABLE neptune.network_nodes ADD COLUMN IF NOT EXISTS notes VARCHAR(1000) DEFAULT '' AFTER group_name");
     } catch (Exception $e) {
     }
+    $db->exec("CREATE TABLE IF NOT EXISTS neptune_settings (
+        setting_key VARCHAR(100) PRIMARY KEY,
+        setting_value TEXT NOT NULL
+    )");
+    try {
+        $stmt = $db->prepare("SELECT COUNT(*) as c FROM neptune_settings WHERE setting_key = 'registration_enabled'");
+        $stmt->execute();
+        if ($stmt->fetch()['c'] == 0) {
+            $db->exec("INSERT INTO neptune_settings (setting_key, setting_value) VALUES ('registration_enabled', '1')");
+        }
+    } catch (Exception $e) {}
 }

frontend/assets/js/app.js

@@ -1033,6 +1033,13 @@ function esc(s) {
     return div.innerHTML;
 }
 
+async function loadRegistrationSetting() {
+    try {
+        const res = await apiFetch('registration');
+        document.getElementById('registrationToggle').checked = res.registration_enabled === true;
+    } catch (e) {}
+}
+
 async function loadUsers() {
     const list = document.getElementById('userList');
     try {
@@ -1076,7 +1083,11 @@ async function removeUser(id) {
     }
 }
 
-document.getElementById('settingsModal').addEventListener('show.bs.modal', loadUsers);
+document.getElementById('settingsModal').addEventListener('show.bs.modal', () => {
+    loadUsers();
+    loadRegistrationSetting();
+});
+document.getElementById('registrationToggle').addEventListener('change', saveRegistrationSetting);
 
 // ==================== DOCUMENTS ====================
 const DOC_TYPE_ICONS = {

frontend/index.html

@@ -480,6 +480,16 @@
                     <button class="btn btn-primary" id="addUserBtn"><i class="fas fa-plus"></i> Add</button>
                 </div>
                 <small class="text-secondary">Get the user token from the user's Jakach Auth profile or ask them to log in once.</small>
+                <hr class="border-secondary">
+                <div class="d-flex justify-content-between align-items-center">
+                    <div>
+                        <h6 class="text-secondary mb-0"><i class="fas fa-user-plus me-1"></i> New User Registration</h6>
+                        <small class="text-secondary">Allow new users to register via login link</small>
+                    </div>
+                    <div class="form-check form-switch mb-0">
+                        <input class="form-check-input" type="checkbox" id="registrationToggle" style="cursor:pointer;">
+                    </div>
+                </div>
             </div>
         </div>
     </div>