Should fix bug when uploading swf files in 1.8.8.x

main/document/download.php

@@ -69,17 +69,21 @@ if (substr($refer_script, 0, 15) == '/fillsurvey.php') {
 //Fixes swf upload problem in chamilo 1.8.x. When uploading a file with 
 //the character "-" the filename was changed from "-" to "_" in the DB for no reason
 $path_info = pathinfo($doc_url);
+
 $fix_file_name = false;
 if (isset($path_info['extension']) && $path_info['extension'] == 'swf') {
-    $original_doc_url =  $doc_url;
-    $doc_url = str_replace('_', '-', $doc_url);
-    $fix_file_name = true;
+    $fixed_url = str_replace('-', '_', $doc_url);
+    $doc_id = DocumentManager::get_document_id(api_get_course_info(), $doc_url);
+    if (!$doc_id) {
+        $fix_file_name = true;
+    }
 }
 
+
 if (Security::check_abs_path($sys_course_path.$doc_url, $sys_course_path.'/')) {
-    $full_file_name = $sys_course_path.$doc_url;
+    $full_file_name = $sys_course_path.$doc_url;    
     if ($fix_file_name) {
-        $doc_url = $original_doc_url;
+        $doc_url = $fixed_url;
     }
     // Check visibility of document and paths
     $is_visible = DocumentManager::is_visible($doc_url, $_course, api_get_session_id());