friendica/src/App/Mode.php

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<?php
namespace Friendica\App;
use Friendica\Core\Config\Cache\ConfigCache;
use Friendica\Database\Database;
use Friendica\Util\BasePath;
/**
* Mode of the current Friendica Node
*
* @package Friendica\App
*/
class Mode
{
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const LOCALCONFIGPRESENT = 1;
const DBAVAILABLE = 2;
const DBCONFIGAVAILABLE = 4;
const MAINTENANCEDISABLED = 8;
/***
* @var int the mode of this Application
*
*/
private $mode;
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public function __construct(int $mode = 0)
{
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$this->mode = $mode;
}
/**
* 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
*
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* @return Mode returns the determined mode
*
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* @throws \Exception
*/
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public function determine(BasePath $basepath, Database $database, ConfigCache $configCache)
{
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$mode = 0;
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$basepathName = $basepath->getPath();
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if (!file_exists($basepathName . '/config/local.config.php')
&& !file_exists($basepathName . '/config/local.ini.php')
&& !file_exists($basepathName . '/.htconfig.php')) {
return new Mode($mode);
}
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$mode |= Mode::LOCALCONFIGPRESENT;
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if (!$database->connected()) {
return new Mode($mode);
}
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$mode |= Mode::DBAVAILABLE;
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if ($database->fetchFirst("SHOW TABLES LIKE 'config'") === false) {
return new Mode($mode);
}
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$mode |= Mode::DBCONFIGAVAILABLE;
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if (!empty($configCache->get('system', 'maintenance')) ||
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// Don't use Config or Configuration here because we're possibly BEFORE initializing the Configuration,
// so this could lead to a dependency circle
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!empty($database->selectFirst('config', ['v'], ['cat' => 'system', 'k' => 'maintenance'])['v'])) {
return new Mode($mode);
}
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$mode |= Mode::MAINTENANCEDISABLED;
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return new Mode($mode);
}
/**
* Checks, if the Friendica Node has the given mode
*
* @param int $mode A mode to test
*
* @return bool returns true, if the mode is set
*/
public function has($mode)
{
return ($this->mode & $mode) > 0;
}
/**
* Install mode is when the local config file is missing or the DB schema hasn't been installed yet.
*
* @return bool
*/
public function isInstall()
{
return !$this->has(Mode::LOCALCONFIGPRESENT) ||
!$this->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 function isNormal()
{
return $this->has(Mode::LOCALCONFIGPRESENT) &&
$this->has(Mode::DBAVAILABLE) &&
$this->has(Mode::DBCONFIGAVAILABLE) &&
$this->has(Mode::MAINTENANCEDISABLED);
}
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}