Executing abort() function leads to the Unexpected error

[oleua]

Hi! I have updated my NC instance to v.34.0.2. Now my simple scripts (eg Directory tree generation) shows Unexpected error when the abort function is run.

eg:

if( exists(out_folder, "tree.txt") )then
	abort("The file 'tree.txt' already exists in this folder.")
end

will lead to

{"reqId":"raRCLIDGVZqSrKgNSl1G","level":3,"time":"2026-08-09T14:17:14+03:00","remoteAddr":"****","user":"username","app":"files_scripts","method":"POST","url":"/index.php/apps/files_scripts/run/3","scriptName":"/index.php","message":"File scripts runtime error","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/151.0.0.0 Safari/537.36","version":"34.0.2.1","data":{"app":"files_scripts","error_message":"The file 'tree.txt' already exists in this folder.","trace":"#0 /www/html/nextcloud-dev-34/apps/files_scripts/lib/Interpreter/Lua/LuaInterpreter.php(14): Lua->eval()\n#1 /www/html/nextcloud-dev-34/apps/files_scripts/lib/Interpreter/Interpreter.php(32): OCA\\FilesScripts\\Interpreter\\Lua\\LuaInterpreter->eval()\n#2 /www/html/nextcloud-dev-34/apps/files_scripts/lib/Service/ScriptService.php(88): OCA\\FilesScripts\\Interpreter\\Interpreter->execute()\n#3 /www/html/nextcloud-dev-34/apps/files_scripts/lib/Controller/ScriptController.php(204): OCA\\FilesScripts\\Service\\ScriptService->runScript()\n#4 /www/html/nextcloud-dev-34/lib/private/AppFramework/Http/Dispatcher.php(165): OCA\\FilesScripts\\Controller\\ScriptController->run()\n#5 /www/html/nextcloud-dev-34/lib/private/AppFramework/Http/Dispatcher.php(78): OC\\AppFramework\\Http\\Dispatcher->executeController()\n#6 /www/html/nextcloud-dev-34/lib/private/AppFramework/App.php(137): OC\\AppFramework\\Http\\Dispatcher->dispatch()\n#7 /www/html/nextcloud-dev-34/lib/private/Route/Router.php(324): OC\\AppFramework\\App::main()\n#8 /www/html/nextcloud-dev-34/lib/base.php(1172): OC\\Route\\Router->match()\n#9 /www/html/nextcloud-dev-34/index.php(25): OC::handleRequest()\n#10 {main}","script_id":"3","inputs":"[]","files":"{\"1\":\"/master/files/new.docx\"}"},"id":"6a7a3d8562d80"}

And I will see pop-up Unexpected Error.

Though the script works.

I tried to modify the file lib/Controller/ScriptController.php without any success:

try {
			$this->scriptService->runScript($script, $context);
		} catch (AbortException $e) {
			return new JSONResponse([
				'error' => $e->getMessage(),
				'messages' => $context->getMessages()
			], HTTP::STATUS_BAD_REQUEST);
		}

The only workaround is to use the construction:

if( exists(out_folder, "tree.txt") )then
	add_message("The file 'tree.txt' already exists in this folder.","error")
else
    new_file(out_folder, "tree.txt", list)
end