friendica/src/App/Mode.php

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<?php
namespace Friendica\App;
use Friendica\Core\Config;
use Friendica\Database\DBA;
/**
* Mode of the current Friendica Node
*
* @package Friendica\App
*/
class Mode
{
const LOCALCONFIGPRESENT = 1;
const DBAVAILABLE = 2;
const DBCONFIGAVAILABLE = 4;
const MAINTENANCEDISABLED = 8;
/***
* @var int the mode of this Application
*
* Default is 0 (= not set)
*/
private static $mode = 0;
/**
* Sets the App mode
*
* - App::MODE_INSTALL : Either the database connection can't be established or the config table doesn't exist
* - App::MODE_MAINTENANCE: The maintenance mode has been set
* - App::MODE_NORMAL : Normal run with all features enabled
*
* @param string $basepath the Basepath of the Application
*
*/
public static function determine($basepath)
{
self::$mode = 0;
if (!file_exists($basepath . DIRECTORY_SEPARATOR . 'config' . DIRECTORY_SEPARATOR . 'local.ini.php')
&& !file_exists($basepath . DIRECTORY_SEPARATOR . '.htconfig.php')) {
return;
}
self::$mode |= Mode::LOCALCONFIGPRESENT;
if (!DBA::connected()) {
return;
}
self::$mode |= Mode::DBAVAILABLE;
if (DBA::fetchFirst("SHOW TABLES LIKE 'config'") === false) {
return;
}
self::$mode |= Mode::DBCONFIGAVAILABLE;
if (Config::get('system', 'maintenance')) {
return;
}
self::$mode |= Mode::MAINTENANCEDISABLED;
}
/**
* Checks, if the Friendica Node has the given mode
*
* @param int $mode A mode to test
*
* @return bool returns true, if the mode is set
*/
public static function has($mode)
{
return self::$mode & $mode;
}
/**
* Install mode is when the local config file is missing or the DB schema hasn't been installed yet.
*
* @return bool
*/
public static function isInstall()
{
return !self::has(Mode::LOCALCONFIGPRESENT) ||
!self::has(MODE::DBCONFIGAVAILABLE);
}
/**
* Normal mode is when the local config file is set, the DB schema is installed and the maintenance mode is off.
*
* @return bool
*/
public static function isNormal()
{
return self::has(Mode::LOCALCONFIGPRESENT) &&
self::has(Mode::DBAVAILABLE) &&
self::has(Mode::DBCONFIGAVAILABLE) &&
self::has(Mode::MAINTENANCEDISABLED);
}
}