$module_info) { $class_name = "{$module_name}_task"; if (method_exists($class_name, "available_tasks")) { foreach (call_user_func(array($class_name, "available_tasks")) as $task) { $tasks[$task->callback] = $task; } } } return $tasks; } /** * Show a list of all available, running and finished tasks. */ public function index() { $query = Database::instance()->query( "UPDATE `tasks` SET `state` = 'stalled' " . "WHERE done = 0 " . "AND state <> 'stalled' " . "AND unix_timestamp(now()) - updated > 120"); $stalled_count = $query->count(); if ($stalled_count) { log::warning("tasks", t2("One task is stalled", "%count tasks are stalled", $stalled_count), t("%link_startview%link_end", array("link_start" => "", "link_start" => ""))); } $view = new Admin_View("admin.html"); $view->content = new View("admin_maintenance.html"); $view->content->task_definitions = $this->_get_task_definitions(); $view->content->running_tasks = ORM::factory("task")->where("done", 0)->orderby("updated", "DESC")->find_all(); $view->content->finished_tasks = ORM::factory("task")->where("done", 1)->orderby("updated", "DESC")->find_all(); $view->content->csrf = access::csrf_token(); print $view; } /** * Start a new task * @param string $task_callback */ public function start($task_callback) { access::verify_csrf(); $task_definitions = $this->_get_task_definitions(); $task = ORM::factory("task"); $task->callback = $task_callback; $task->name = $task_definitions[$task_callback]->name; $task->percent_complete = 0; $task->status = ""; $task->state = "started"; $task->context = serialize(array()); $task->save(); $view = new View("admin_maintenance_task.html"); $view->csrf = access::csrf_token(); $view->task = $task; log::info("tasks", t("Task %task_name started (task id %task_id)", array("task_name" => $task->name, "task_id" => $task->id)), html::anchor(url::site("admin/maintenance"), t("maintenance"))); print $view; } /** * Resume a stalled task * @param string $task_id */ public function resume($task_id) { access::verify_csrf(); $task = ORM::factory("task", $task_id); if (!$task->loaded) { throw new Exception("@todo MISSING_TASK"); } $view = new View("admin_maintenance_task.html"); $view->csrf = access::csrf_token(); $view->task = $task; log::info("tasks", t("Task %task_name resumed (task id %task_id)", array("task_name" => $task->name, "task_id" => $task->id)), html::anchor(url::site("admin/maintenance"), t("maintenance"))); print $view; } /** * Cancel a task. * @param string $task_id */ public function cancel($task_id) { access::verify_csrf(); $task = ORM::factory("task", $task_id); if (!$task->loaded) { throw new Exception("@todo MISSING_TASK"); } $task->done = 1; $task->state = "cancelled"; $task->save(); message::success(t("Task cancelled")); url::redirect("admin/maintenance"); } /** * Remove a task. * @param string $task_id */ public function remove($task_id) { access::verify_csrf(); $task = ORM::factory("task", $task_id); if (!$task->loaded) { throw new Exception("@todo MISSING_TASK"); } $task->delete(); message::success(t("Task removed")); url::redirect("admin/maintenance"); } /** * Run a task. This will trigger the task to do a small amount of work, then it will report * back with status on the task. * @param string $task_id */ public function run($task_id) { access::verify_csrf(); $task = ORM::factory("task", $task_id); if (!$task->loaded) { throw new Exception("@todo MISSING_TASK"); } $task->state = "running"; call_user_func_array($task->callback, array(&$task)); $task->save(); if ($task->done) { switch ($task->state) { case "success": log::success("tasks", t("Task %task_name completed (task id %task_id)", array("task_name" => $task->name, "task_id" => $task->id)), html::anchor(url::site("admin/maintenance"), t("maintenance"))); message::success(t("Task completed successfully")); break; case "error": log::error("tasks", t("Task %task_name failed (task id %task_id)", array("task_name" => $task->name, "task_id" => $task->id)), html::anchor(url::site("admin/maintenance"), t("maintenance"))); message::success(t("Task failed")); break; } print json_encode( array("result" => "success", "task" => $task->as_array(), "location" => url::site("admin/maintenance"))); } else { print json_encode( array("result" => "in_progress", "task" => $task->as_array())); } } }