Elgg-Lorea-Hydra/mod/file_tools/actions/upload/zip.php

<?php

$container_guid = (int) get_input("container_guid", 0);
$parent_guid = get_input("parent_guid");

set_time_limit(0);

$forward_url = REFERER;

if (!empty($container_guid) && get_uploaded_file("zip_file")) {
	$extension_array = explode(".", $_FILES["zip_file"]["name"]);
	
	if (strtolower(end($extension_array)) == "zip") {
		$file = $_FILES["zip_file"];
		
		// disable notifications of new objects
		elgg_unregister_notification_event('object', 'file');
		
		if (file_tools_unzip($file, $container_guid, $parent_guid)) {
			system_message(elgg_echo("file:saved"));
			
			$container = get_entity($container_guid);
			if (elgg_instanceof($container, "group")) {
				$forward_url = "file/group/" . $container->getGUID() . "/all#" . $parent_guid;
			} else {
				$forward_url = "file/owner/" . $container->username . "#" . $parent_guid;
			}
		} else {
			register_error(elgg_echo("file:uploadfailed"));
		}
		
		// reenable notifications of new objects
		elgg_register_notification_event('object', 'file', array('create'));
	} else {
		register_error(elgg_echo("file:uploadfailed"));
	}
} else {
	register_error(elgg_echo("file:cannotload"));
}

forward($forward_url);