update chat

php/chat/relay.php

@@ -5,31 +5,38 @@ if (!isset($_GET['user'])) {
 }
 
 $user = preg_replace('/[^a-zA-Z0-9_-]/', '', $_GET['user']);
+
+// Verifica se a live está online (arquivo .mpd existe)
+$mpdPath = "/var/www/html/stream/{$user}.mpd";
+if (!file_exists($mpdPath)) {
+    http_response_code(404);
+    exit("Live offline");
+}
+
 header("Content-Type: text/event-stream");
 header("Cache-Control: no-cache");
 header("Connection: keep-alive");
 
 $tmp_file = sys_get_temp_dir() . "/relay_chat_{$user}.txt";
 
+// Cria o arquivo se ainda não existir
 if (!file_exists($tmp_file)) {
     file_put_contents($tmp_file, '');
 }
 
-$last_modif = 0;
+$lastMessage = '';
 
 while (true) {
     clearstatcache();
-    $current_modif = filemtime($tmp_file);
+    $currentMessage = trim(file_get_contents($tmp_file));
 
-    if ($current_modif > $last_modif) {
-        $last_modif = $current_modif;
-        $data = file_get_contents($tmp_file);
-        echo "data: " . trim($data) . "\n\n";
+    if ($currentMessage !== '' && $currentMessage !== $lastMessage) {
+        echo "data: " . $currentMessage . "\n\n";
         ob_flush();
         flush();
+        $lastMessage = $currentMessage;
     }
 
     sleep(1);
 }
 ?>
-