Problem: If a document does not want to be converted, the server may …

…crash. The Python process is terminated, but the soffice process runs with 100% CPU and causes a memory error. Fix: If the timeout time is exceeded, catch the error and kill the process group id of the soffice process. Returns a TimeoutExpired message to the Moodle plugin.

classes/converter.php

@@ -194,6 +194,13 @@ public function start_document_conversion(\core_files\conversion $conversion) {
         if (!empty($json->error)) {
             throw new coding_exception($json->error->code . ': ' . $json->error->message . '. Response was: '.$response);
         }
+        if (isset($json['result']['doc-conv-failed'])) {
+            if ($json['result']['doc-conv-failed'] == 'TimeoutExpired') {
+                $conversion->set('status', conversion::STATUS_FAILED);
+                $conversion->update();
+                return $this;
+            }
+        }
         if (!isset($json['result']['pdf']) OR is_null($json)) {
             throw new coding_exception('Response was: '.$response);
         }

version.php

@@ -24,6 +24,6 @@
 
 defined('MOODLE_INTERNAL') || die();
 
-$plugin->version   = 2021100700; // The current plugin version (Date: YYYYMMDDXX).
+$plugin->version   = 2022032800; // The current plugin version (Date: YYYYMMDDXX).
 $plugin->requires  = 2019052000; // Requires this Moodle version.
 $plugin->component = 'fileconverter_flasksoffice'; // Full name of the plugin (used for diagnostics).