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<?php |
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/** |
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* @author Marwan Al-Soltany <[email protected]> |
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* @copyright Marwan Al-Soltany 2021 |
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* For the full copyright and license information, please view |
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* the LICENSE file that was distributed with this source code. |
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*/ |
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declare(strict_types=1); |
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namespace MAKS\Velox; |
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use MAKS\Velox\Backend\Event; |
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use MAKS\Velox\Backend\Config; |
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use MAKS\Velox\Backend\Router; |
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use MAKS\Velox\Backend\Globals; |
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use MAKS\Velox\Backend\Session; |
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use MAKS\Velox\Backend\Database; |
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use MAKS\Velox\Backend\Auth; |
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use MAKS\Velox\Frontend\Data; |
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use MAKS\Velox\Frontend\View; |
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use MAKS\Velox\Frontend\HTML; |
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use MAKS\Velox\Frontend\Path; |
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use MAKS\Velox\Helper\Dumper; |
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use MAKS\Velox\Helper\Misc; |
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/** |
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* A class that serves as a basic service-container for VELOX. |
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* This class has most VELOX classes as public properties: |
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* - `$auth`: Instance of the `Auth` class. |
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* - `$event`: Instance of the `Event` class. |
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* - `$config`: Instance of the `Config` class. |
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* - `$router`: Instance of the `Router` class. |
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* - `$globals`: Instance of the `Globals` class. |
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* - `$session`: Instance of the `Session` class. |
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* - `$database`: Instance of the `Database` class. |
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* - `$data`: Instance of the `Data` class. |
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* - `$view`: Instance of the `View` class. |
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* - `$html`: Instance of the `HTML` class. |
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* - `$path`: Instance of the `Path` class. |
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* - `$dumper`: Instance of the `Dumper` class. |
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* - `$misc`: Instance of the `Misc` class. |
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* |
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* Example: |
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* ``` |
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* // create an instance |
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* $app = new App(); |
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* // get an instance of the `Config` class via public property access notation |
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* $app->config; |
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* // or via calling a method with the same name |
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* $app->config()->get('global'); |
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* ``` |
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* |
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* @package Velox |
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* @since 1.0.0 |
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* @api |
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* |
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* @method static void handleException(\Throwable $expression) This method is available only at shutdown. |
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* @method static void handleError(int $code, string $message, string $file, int $line) This method is available only at shutdown. |
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*/ |
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class App |
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{ |
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/** |
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* This event will be dispatched on app termination. Note that this event can be dispatched multiple times in app life-cycle. |
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* This event will not be passed any arguments. |
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* |
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* @var string |
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*/ |
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public const ON_TERMINATE = 'app.on.terminate'; |
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/** |
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* This event will be dispatched on app shutdown. Note that this event is dispatched only once in app life-cycle. |
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* This event will not be passed any arguments. |
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* |
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* @var string |
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*/ |
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public const ON_SHUTDOWN = 'app.on.shutdown'; |
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/** |
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* The class singleton instance. |
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*/ |
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protected static self $instance; |
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public Event $event; |
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public Config $config; |
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public Router $router; |
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public Globals $globals; |
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public Session $session; |
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public Database $database; |
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public Auth $auth; |
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public Data $data; |
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public View $view; |
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public HTML $html; |
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public Path $path; |
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public Dumper $dumper; |
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public Misc $misc; |
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protected array $methods; |
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protected static array $staticMethods; |
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/** |
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* Class constructor. |
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*/ |
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public function __construct() |
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{ |
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if (empty(static::$instance)) { |
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static::$instance = $this; |
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} |
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$this->event = new Event(); |
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$this->config = new Config(); |
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$this->router = new Router(); |
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$this->globals = new Globals(); |
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$this->session = new Session(); |
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$this->database = Database::instance(); |
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$this->auth = Auth::instance(); |
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$this->data = new Data(); |
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$this->view = new View(); |
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$this->html = new HTML(); |
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$this->path = new Path(); |
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$this->dumper = new Dumper(); |
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$this->misc = new Misc(); |
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$this->methods = []; |
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static::$staticMethods = []; |
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} |
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public function __call(string $method, array $arguments) |
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{ |
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$class = static::class; |
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try { |
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return isset($this->methods[$method]) ? $this->methods[$method](...$arguments) : $this->{$method}; |
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} catch (\Exception $error) { |
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throw new \Exception( |
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"Call to undefined method {$class}::{$method}()", |
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(int)$error->getCode(), |
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$error |
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); |
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} |
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} |
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public static function __callStatic(string $method, array $arguments) |
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{ |
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$class = static::class; |
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if (!isset(static::$staticMethods[$method])) { |
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throw new \Exception("Call to undefined static method {$class}::{$method}()"); |
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} |
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return static::$staticMethods[$method](...$arguments); |
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} |
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/** |
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* Returns the singleton instance of the `App` class. |
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* |
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* NOTE: This method returns only the first instance of the class |
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* which is normally the one that was created during application bootstrap. |
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* |
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* @return static |
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* |
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* @since 1.4.0 |
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*/ |
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final public static function instance(): self |
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{ |
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if (empty(static::$instance)) { |
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static::$instance = new static(); |
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} |
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return static::$instance; |
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} |
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/** |
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* Extends the class using the passed callback. |
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* |
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* @param string $name Method name. |
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* @param callable $callback The callback to use as method body. |
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* |
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* @return callable The created bound closure. |
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*/ |
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public function extend(string $name, callable $callback): callable |
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{ |
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$method = \Closure::fromCallable($callback); |
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$method = \Closure::bind($method, $this, $this); |
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return $this->methods[$name] = $method; |
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} |
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/** |
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* Extends the class using the passed callback. |
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* |
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* @param string $name Method name. |
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* @param callable $callback The callback to use as method body. |
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* |
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* @return callable The created closure. |
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*/ |
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public static function extendStatic(string $name, callable $callback): callable |
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{ |
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$method = \Closure::fromCallable($callback); |
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$method = \Closure::bind($method, null, static::class); |
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return static::$staticMethods[$name] = $method; |
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} |
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/** |
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* Logs a message to a file and generates it if it does not exist. |
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* |
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* @param string $message The message wished to be logged. |
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* @param array|null $context An associative array of values where array key = {key} in the message (context). |
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* @param string|null $filename [optional] The name wished to be given to the file. If not provided `{global.logging.defaultFilename}` will be used instead. |
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* @param string|null $directory [optional] The directory where the log file should be written. If not provided `{global.logging.defaultDirectory}` will be used instead. |
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* |
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* @return bool True on success (if the message was written). |
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*/ |
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public static function log(string $message, ?array $context = [], ?string $filename = null, ?string $directory = null): bool |
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{ |
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if (!Config::get('global.logging.enabled', true)) { |
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return true; |
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} |
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$hasPassed = false; |
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if (!$filename) { |
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$filename = Config::get('global.logging.defaultFilename', sprintf('autogenerated-%s', date('Ymd'))); |
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} |
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if (!$directory) { |
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$directory = Config::get('global.logging.defaultDirectory', BASE_PATH); |
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} |
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$file = Path::normalize($directory, $filename, '.log'); |
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if (!file_exists($directory)) { |
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mkdir($directory, 0744, true); |
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} |
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// create log file if it does not exist |
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if (!is_file($file) && is_writable($directory)) { |
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$signature = 'Created by ' . __METHOD__ . date('() \o\\n l jS \of F Y h:i:s A (Ymdhis)') . PHP_EOL . PHP_EOL; |
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file_put_contents($file, $signature, 0); |
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chmod($file, 0775); |
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} |
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// write in the log file |
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if (is_writable($file)) { |
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clearstatcache(true, $file); |
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// empty the file if it exceeds the configured file size |
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$maxFileSize = Config::get('global.logging.maxFileSize', 6.4e+7); |
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if (filesize($file) > $maxFileSize) { |
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$stream = fopen($file, 'r'); |
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if (is_resource($stream)) { |
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$signature = fgets($stream) . 'For exceeding the configured {global.logging.maxFileSize}, it was overwritten on ' . date('l jS \of F Y h:i:s A (Ymdhis)') . PHP_EOL . PHP_EOL; |
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fclose($stream); |
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file_put_contents($file, $signature, 0); |
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chmod($file, 0775); |
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} |
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} |
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$timestamp = (new \DateTime())->format(DATE_ISO8601); |
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$message = Misc::interpolate($message, $context ?? []); |
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$log = "$timestamp\t$message\n"; |
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$stream = fopen($file, 'a+'); |
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if (is_resource($stream)) { |
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fwrite($stream, $log); |
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fclose($stream); |
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$hasPassed = true; |
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} |
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} |
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return $hasPassed; |
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} |
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/** |
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* Aborts the current request and sends a response with the specified HTTP status code, title, and message. |
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* An HTML page will be rendered with the specified title and message. |
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* If a view file for the error page is set using `{global.errorPages.CODE}`, |
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* it will be rendered instead of the normal page and passed the `$code`, `$title`, and `$message` variables. |
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* The title for the most common HTTP status codes (`200`, `401`, `403`, `404`, `405`, `500`, `503`) is already configured. |
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* |
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* @param int $code The HTTP status code. |
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* @param string|null $title [optional] The title of the HTML page. |
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* @param string|null $message [optional] The message of the HTML page. |
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* |
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* @return void |
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* |
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* @since 1.2.5 |
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*/ |
308
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public static function abort(int $code, ?string $title = null, ?string $message = null): void |
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{ |
310
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$http = [ |
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200 => 'OK', |
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401 => 'Unauthorized', |
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403 => 'Forbidden', |
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404 => 'Not Found', |
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405 => 'Not Allowed', |
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500 => 'Internal Server Error', |
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503 => 'Service Unavailable', |
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]; |
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$title = htmlspecialchars($title ?? $code . ' ' . $http[$code] ?? '', ENT_QUOTES, 'UTF-8'); |
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4 |
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$message = htmlspecialchars($message ?? '', ENT_QUOTES, 'UTF-8'); |
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try { |
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4 |
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$html = View::render((string)Config::get("global.errorPages.{$code}"), compact('code', 'title', 'message')); |
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} catch (\Throwable $e) { |
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$html = (new HTML(false)) |
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->node('<!DOCTYPE html>') |
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->open('html', ['lang' => 'en']) |
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->open('head') |
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->title((string)$code) |
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->link(null, [ |
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'href' => 'https://cdn.jsdelivr.net/npm/bulma@latest/css/bulma.min.css', |
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'rel' => 'stylesheet' |
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]) |
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->close() |
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->open('body') |
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->open('section', ['class' => 'section is-large has-text-centered']) |
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->hr(null) |
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->h1($title, ['class' => 'title is-1 is-spaced has-text-danger']) |
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->condition(strlen($message)) |
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->h4($message, ['class' => 'subtitle']) |
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->hr(null) |
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->a('Reload', ['class' => 'button is-warning is-light', 'href' => 'javascript:location.reload();']) |
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->entity('nbsp') |
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->entity('nbsp') |
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->a('Home', ['class' => 'button is-success is-light', 'href' => '/']) |
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->hr(null) |
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->close() |
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->close() |
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->close() |
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->return(); |
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} finally { |
353
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4 |
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http_response_code($code); |
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echo $html; |
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356
|
4 |
|
static::terminate(); |
357
|
|
|
} |
358
|
|
|
} |
359
|
|
|
|
360
|
|
|
|
361
|
|
|
/** |
362
|
|
|
* Terminates (exits) the PHP script. |
363
|
|
|
* This function is used instead of PHP `exit` to allow for testing `exit` without breaking the unit tests. |
364
|
|
|
* |
365
|
|
|
* @param int|string|null $status The exit status code/message. |
366
|
|
|
* @param bool $noShutdown Whether to not execute the shutdown function or not. |
367
|
|
|
* |
368
|
|
|
* @return void This function never returns. It will terminate the script. |
369
|
|
|
* @throws \Exception If `EXIT_EXCEPTION` is defined and truthy. |
370
|
|
|
* |
371
|
|
|
* @since 1.2.5 |
372
|
|
|
*/ |
373
|
5 |
|
public static function terminate($status = null, bool $noShutdown = true): void |
374
|
|
|
{ |
375
|
5 |
|
Event::dispatch(self::ON_TERMINATE); |
376
|
|
|
|
377
|
5 |
|
if (defined('EXIT_EXCEPTION') && EXIT_EXCEPTION) { |
378
|
5 |
|
throw new \Exception(empty($status) ? 'Exit' : 'Exit: ' . $status); |
379
|
|
|
} |
380
|
|
|
|
381
|
|
|
// @codeCoverageIgnoreStart |
382
|
|
|
if ($noShutdown) { |
383
|
|
|
// app shutdown function checks for this variable |
384
|
|
|
// to determine if it should exit, see bootstrap/loader.php |
385
|
|
|
Misc::setArrayValueByKey($GLOBALS, '_VELOX.TERMINATE', true); |
386
|
|
|
} |
387
|
|
|
|
388
|
|
|
exit($status); |
|
|
|
|
389
|
|
|
// @codeCoverageIgnoreEnd |
390
|
|
|
} |
391
|
|
|
|
392
|
|
|
/** |
393
|
|
|
* Shuts the app down by terminating it and executing shutdown function(s). |
394
|
|
|
* The triggered shutdown functions can be normal shutdown functions registered, |
395
|
|
|
* using `register_shutdown_function()` or the `self::ON_SHUTDOWN` event. |
396
|
|
|
* |
397
|
|
|
* @return void |
398
|
|
|
* |
399
|
|
|
* @internal This method is to be used by the framework and not the user. |
400
|
|
|
* @since 1.4.2 |
401
|
|
|
* |
402
|
|
|
* @codeCoverageIgnore |
403
|
|
|
*/ |
404
|
|
|
public static function shutdown(): void |
405
|
|
|
{ |
406
|
|
|
Event::dispatch(self::ON_SHUTDOWN); |
407
|
|
|
|
408
|
|
|
Misc::setArrayValueByKey($GLOBALS, '_VELOX.SHUTDOWN', false); |
409
|
|
|
|
410
|
|
|
exit; |
|
|
|
|
411
|
|
|
} |
412
|
|
|
} |
413
|
|
|
|
In general, usage of exit should be done with care and only when running in a scripting context like a CLI script.