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- <?php
- require_once(__DIR__ . '/BridgeInterface.php');
- class Bridge {
- static protected $dirBridge;
- public function __construct(){
- throw new \LogicException('Please use ' . __CLASS__ . '::create for new object.');
- }
- /**
- * Checks if a bridge is an instantiable bridge.
- * @param string $nameBridge name of the bridge that you want to use
- * @return true if it is an instantiable bridge, false otherwise.
- */
- static public function isInstantiable($nameBridge){
- $re = new ReflectionClass($nameBridge);
- return $re->IsInstantiable();
- }
- /**
- * Create a new bridge object
- * @param string $nameBridge Defined bridge name you want use
- * @return Bridge object dedicated
- */
- static public function create($nameBridge){
- if(!preg_match('@^[A-Z][a-zA-Z0-9-]*$@', $nameBridge)){
- $message = <<<EOD
- 'nameBridge' must start with one uppercase character followed or not by
- alphanumeric or dash characters!
- EOD;
- throw new \InvalidArgumentException($message);
- }
- $nameBridge = $nameBridge . 'Bridge';
- $pathBridge = self::getDir() . $nameBridge . '.php';
- if(!file_exists($pathBridge)){
- throw new \Exception('The bridge you looking for does not exist. It should be at path '
- . $pathBridge);
- }
- require_once $pathBridge;
- if(Bridge::isInstantiable($nameBridge)){
- return new $nameBridge();
- } else {
- return false;
- }
- }
- static public function setDir($dirBridge){
- if(!is_string($dirBridge)){
- throw new \InvalidArgumentException('Dir bridge must be a string.');
- }
- if(!file_exists($dirBridge)){
- throw new \Exception('Dir bridge does not exist.');
- }
- self::$dirBridge = $dirBridge;
- }
- static public function getDir(){
- $dirBridge = self::$dirBridge;
- if(is_null($dirBridge)){
- throw new \LogicException(__CLASS__ . ' class need to know bridge path !');
- }
- return $dirBridge;
- }
- /**
- * Lists the available bridges.
- * @return array List of the bridges
- */
- static public function listBridges(){
- $pathDirBridge = self::getDir();
- $listBridge = array();
- $dirFiles = scandir($pathDirBridge);
- if($dirFiles !== false){
- foreach($dirFiles as $fileName){
- if(preg_match('@^([^.]+)Bridge\.php$@U', $fileName, $out)){
- $listBridge[] = $out[1];
- }
- }
- }
- return $listBridge;
- }
- static public function isWhitelisted($whitelist, $name){
- if(in_array($name, $whitelist)
- || in_array($name . '.php', $whitelist)
- || in_array($name . 'Bridge', $whitelist) // DEPRECATED
- || in_array($name . 'Bridge.php', $whitelist) // DEPRECATED
- || (count($whitelist) === 1 && trim($whitelist[0]) === '*')){
- return true;
- } else {
- return false;
- }
- }
- }
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