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<?php |
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namespace dominus77\maintenance; |
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use Yii; |
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use yii\base\BootstrapInterface; |
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use yii\base\InvalidConfigException; |
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use yii\base\Application; |
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use dominus77\maintenance\interfaces\StateInterface; |
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/** |
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* Class Maintenance |
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* @package dominus77\maintenance |
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*/ |
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class Maintenance extends BackendMaintenance implements BootstrapInterface |
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{ |
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/** |
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* Route to maintenance action. |
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* @var string |
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*/ |
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public $route; |
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/** |
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* @var array |
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*/ |
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public $filters; |
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/** |
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* Default status code to send on maintenance |
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* 503 = Service Unavailable |
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* @var int|string |
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*/ |
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public $statusCode; |
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/** |
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* Retry-After header |
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* If not set, set automatically from the set time, + 10 minutes |
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* @var bool|string |
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*/ |
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public $retryAfter = false; |
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/** |
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* @var StateInterface |
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*/ |
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protected $state; |
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/** |
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* Maintenance constructor. |
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* @param StateInterface $state |
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* @param array $config |
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*/ |
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public function __construct(StateInterface $state, array $config = []) |
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{ |
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$this->state = $state; |
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if ($this->state->isEnabled()) { |
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$timestamp = $this->state->timestamp(); |
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$this->retryAfter = $this->retryAfter ?: gmdate('D, d M Y H:i:s \G\M\T', $timestamp); // (Wed, 21 Oct 2015 07:28:00 GMT) |
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} |
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$this->statusCode = $this->statusCode ?: $this->state->statusCode(); |
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parent::__construct($config); |
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} |
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/** |
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* @param Application $app |
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* @throws InvalidConfigException |
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*/ |
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public function bootstrap($app) |
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{ |
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$response = $app->response; |
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if ($app->request->isAjax) { |
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$response->statusCode = self::STATUS_CODE_OK; |
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} else { |
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$response->statusCode = (int)$this->statusCode; |
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if ($this->retryAfter && is_string($this->retryAfter)) { |
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$response->headers->set('Retry-After', $this->retryAfter); |
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} |
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} |
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if ($this->state->isEnabled() && !$this->filtersExcepted()) { |
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$app->catchAll = [$this->route]; |
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} else { |
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$response->statusCode = self::STATUS_CODE_OK; |
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} |
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} |
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/** |
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* @return bool |
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* @throws InvalidConfigException |
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*/ |
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protected function filtersExcepted() |
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{ |
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if (empty($this->filters)) { |
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return false; |
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} |
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foreach ($this->filters as $config) { |
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$filter = Yii::createObject($config); |
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if (!($filter instanceof Filter)) { |
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throw new InvalidConfigException( |
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'Class "' . get_class($filter) . '" must instance of "' . Filter::class . '".' |
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); |
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} |
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if ($filter->isAllowed()) { |
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return true; |
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} |
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} |
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return false; |
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} |
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} |
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Dominus77 /
yii2-maintenance
