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<?php defined("SYSPATH") or die("No direct script access.");
/**
* Gallery - a web based photo album viewer and editor
* Copyright (C) 2000-2008 Bharat Mediratta
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or (at
* your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
*/
class Admin_Maintenance_Controller extends Admin_Controller {
/**
* 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" => "<a href=\"" . url::site("admin/maintenance") . "\">",
"link_start" => "</a>")));
}
$view = new Admin_View("admin.html");
$view->content = new View("admin_maintenance.html");
$view->content->task_definitions = task::get_task_definitions();
$view->content->running_tasks = ORM::factory("task")
->select("tasks.*", "users.name as user_name")
->join("users", "tasks.owner_id", "users.id")
->where("done", 0)->orderby("updated", "DESC")->find_all();
$view->content->finished_tasks = ORM::factory("task")
->select("tasks.*", "users.name as user_name")
->join("users", "tasks.owner_id", "users.id")
->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();
$task = task::create($task_callback);
$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::cancel($task_id);
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::remove($task_id);
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();
$task = task::run($task_id);
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" => $task->id)),
html::anchor(url::site("admin/maintenance"), t("maintenance")));
message::success(t("Task failed"));
break;
}
print task::success($task, url::site("admin/maintenance"));
} else {
print task::in_progress($task);
}
}
}
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