check SyncService

scripts/ftp-server.php

@@ -106,11 +106,16 @@ function ftpSession($ctrl, string $user, string $pass, string $root): void
     $pendUser = '';
     $pasvSock = null;
 
+    stream_set_timeout($ctrl, 300); 
     ftpSend($ctrl, '220 matab-panel FTP Server');
 
     while (!feof($ctrl)) {
         $line = ftpRead($ctrl);
-        if ($line === '') continue;
+        if ($line === '') {
+            $info = stream_get_meta_data($ctrl);
+            if ($info['timed_out']) continue;
+            break; 
+        }
 
         $parts = explode(' ', $line, 2);
         $cmd   = strtoupper($parts[0]);
@@ -261,6 +266,31 @@ function ftpSession($ctrl, string $user, string $pass, string $root): void
                 }
                 break;
 
+            case 'OPTS':
+                ftpSend($ctrl, '200 OK');
+                break;
+
+            case 'PBSZ':
+                ftpSend($ctrl, '200 PBSZ=0');
+                break;
+
+            case 'PROT':
+                ftpSend($ctrl, '200 Protection level set to ' . ($arg ?: 'C'));
+                break;
+
+            case 'EPSV':
+                if (!$authed) { ftpSend($ctrl, '530 Not logged in'); break; }
+                if ($pasvSock) fclose($pasvSock);
+                $pasvPort = rand(60000, 60020);
+                $pasvSock = @stream_socket_server("tcp://0.0.0.0:{$pasvPort}", $e1, $e2);
+                if (!$pasvSock) { ftpSend($ctrl, '425 Cannot open passive connection'); break; }
+                ftpSend($ctrl, "229 Entering Extended Passive Mode (|||{$pasvPort}|)");
+                break;
+
+            case 'EPRT':
+                ftpSend($ctrl, '200 OK');
+                break;
+
             case 'NOOP':
                 ftpSend($ctrl, '200 OK');
                 break;
@@ -270,6 +300,7 @@ function ftpSession($ctrl, string $user, string $pass, string $root): void
                 return;
 
             default:
+                echo "  [UNKNOWN CMD] {$cmd} {$arg}\n";
                 ftpSend($ctrl, '502 Not implemented: ' . $cmd);
         }
     }