차량 모니터 관리자 쿠키 승격 처리

monitor.php

@@ -888,6 +888,18 @@ function car_monitor_cookie_secret(): string
     return $secret;
 }
 
+function car_monitor_admin_assertion_secret(): string
+{
+    global $carSecretConfig;
+
+    $secret = (string)($carSecretConfig['monitor_auth']['admin_assertion_secret'] ?? '');
+    if ($secret === '') {
+        throw new RuntimeException('Car monitor admin assertion secret is missing.');
+    }
+
+    return $secret;
+}
+
 function car_monitor_cookie_options(int $expires): array
 {
     return [
@@ -899,47 +911,76 @@ function car_monitor_cookie_options(int $expires): array
     ];
 }
 
-function car_monitor_cookie_value(int $expires): string
+function car_monitor_cookie_value(int $expires, bool $admin = false): string
 {
     $body = base64_encode(json_encode([
         'exp' => $expires,
         'iat' => time(),
+        'admin' => $admin,
     ], JSON_UNESCAPED_SLASHES));
     $sig = hash_hmac('sha256', $body, car_monitor_cookie_secret());
 
     return $body . '.' . $sig;
 }
 
-function car_monitor_issue_cookie(): void
+function car_monitor_issue_cookie(bool $admin = false): void
 {
     $expires = time() + CAR_MONITOR_AUTH_TTL;
-    setcookie(CAR_MONITOR_COOKIE, car_monitor_cookie_value($expires), car_monitor_cookie_options($expires));
+    setcookie(CAR_MONITOR_COOKIE, car_monitor_cookie_value($expires, $admin), car_monitor_cookie_options($expires));
 }
 
-function car_monitor_has_cookie(): bool
+function car_monitor_cookie_payload(): ?array
 {
     $cookie = $_COOKIE[CAR_MONITOR_COOKIE] ?? '';
     if (!is_string($cookie) || strpos($cookie, '.') === false) {
-        return false;
+        return null;
     }
 
     [$body, $sig] = explode('.', $cookie, 2);
     $expected = hash_hmac('sha256', $body, car_monitor_cookie_secret());
     if (!hash_equals($expected, $sig)) {
-        return false;
+        return null;
     }
 
     $decoded = base64_decode($body, true);
     if ($decoded === false) {
-        return false;
+        return null;
     }
 
     $payload = json_decode($decoded, true);
     if (!is_array($payload)) {
+        return null;
+    }
+
+    return (int)($payload['exp'] ?? 0) >= time() ? $payload : null;
+}
+
+function car_monitor_has_cookie(): bool
+{
+    return is_array(car_monitor_cookie_payload());
+}
+
+function car_monitor_verify_admin_assertion(string $assertion): bool
+{
+    if (strpos($assertion, '.') === false) {
         return false;
     }
 
-    return (int)($payload['exp'] ?? 0) >= time();
+    [$body, $sig] = explode('.', $assertion, 2);
+    $expected = hash_hmac('sha256', $body, car_monitor_admin_assertion_secret());
+    if (!hash_equals($expected, $sig)) {
+        return false;
+    }
+
+    $decoded = base64_decode($body, true);
+    $payload = $decoded !== false ? json_decode($decoded, true) : null;
+    if (!is_array($payload)) {
+        return false;
+    }
+
+    return ($payload['aud'] ?? '') === 'car-monitor'
+        && !empty($payload['admin'])
+        && (int)($payload['exp'] ?? 0) >= time();
 }
 
 function car_monitor_launcher_session(): array
@@ -954,21 +995,22 @@ function car_monitor_launcher_session(): array
     if ($cookieHeader !== '') {
         $adminSession = car_monitor_launcher_api_request('GET', 'https://chaegeon.com/custom/launcher/api.php?adminSession=1', null, $cookieHeader);
         if (is_array($adminSession) && !empty($adminSession['authenticated']) && !empty($adminSession['admin'])) {
-            car_monitor_issue_cookie();
+            car_monitor_issue_cookie(true);
             $session = ['authenticated' => true, 'admin' => true];
             return $session;
         }
 
         $remoteSession = car_monitor_launcher_api_request('GET', 'https://chaegeon.com/custom/launcher/api.php?session=1', null, $cookieHeader);
         if (is_array($remoteSession) && !empty($remoteSession['authenticated'])) {
-            car_monitor_issue_cookie();
+            car_monitor_issue_cookie(!empty($remoteSession['admin']));
             $session = $remoteSession;
             return $session;
         }
     }
 
-    if (car_monitor_has_cookie()) {
+    $cookiePayload = car_monitor_cookie_payload();
-        $session = ['authenticated' => true, 'admin' => false];
+    if (is_array($cookiePayload)) {
+        $session = ['authenticated' => true, 'admin' => !empty($cookiePayload['admin'])];
         return $session;
     }
 
@@ -1132,10 +1174,37 @@ function car_monitor_auth_api(): void
     json_response(['result' => 'fail'], 401);
 }
 
+function car_monitor_admin_assert_api(): void
+{
+    if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
+        json_response(['error' => 'method_not_allowed'], 405);
+    }
+
+    $data = request_payload();
+    $assertion = (string)($data['assertion'] ?? '');
+    if (!car_monitor_verify_admin_assertion($assertion)) {
+        json_response([
+            'status' => 'forbidden',
+            'message' => '관리자 권한이 필요합니다.',
+        ], 403);
+    }
+
+    car_monitor_issue_cookie(true);
+    json_response([
+        'status' => 'success',
+        'authenticated' => true,
+        'admin' => true,
+    ]);
+}
+
 if (isset($_GET['mode']) && $_GET['mode'] === 'auth-login') {
     car_monitor_auth_api();
 }
 
+if (isset($_GET['mode']) && $_GET['mode'] === 'admin-assert') {
+    car_monitor_admin_assert_api();
+}
+
 car_monitor_issue_pwa_cookie_if_requested();
 
 if (isset($_GET['mode']) && $_GET['mode'] === 'ajax') {
@@ -2954,7 +3023,15 @@ $carMonitorSession = car_monitor_launcher_session();
                 cache: 'no-store',
             });
             const data = await res.json();
-            if (res.ok && data?.authenticated && data?.admin) {
+            if (res.ok && data?.authenticated && data?.admin && data?.assertion) {
+                const localRes = await fetch('?mode=admin-assert', {
+                    method: 'POST',
+                    headers: { 'Content-Type': 'application/json' },
+                    cache: 'no-store',
+                    body: JSON.stringify({ assertion: data.assertion }),
+                });
+                if (!localRes.ok) return;
+
                 CAR_MONITOR_SESSION = { ...CAR_MONITOR_SESSION, authenticated: true, admin: true };
                 showCalibrationSettings();
             }