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<?php |
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/** |
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* CallableClass.php - Jaxon callable class plugin |
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* |
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* This class registers user defined callable classes, generates client side javascript code, |
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* and calls their methods on user request |
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* |
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* @package jaxon-core |
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* @author Jared White |
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* @author J. Max Wilson |
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* @author Joseph Woolley |
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* @author Steffen Konerow |
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* @author Thierry Feuzeu <[email protected]> |
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* @copyright Copyright (c) 2005-2007 by Jared White & J. Max Wilson |
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* @copyright Copyright (c) 2008-2010 by Joseph Woolley, Steffen Konerow, Jared White & J. Max Wilson |
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* @copyright 2016 Thierry Feuzeu <[email protected]> |
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* @license https://opensource.org/licenses/BSD-3-Clause BSD 3-Clause License |
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* @link https://github.com/jaxon-php/jaxon-core |
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*/ |
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namespace Jaxon\Request\Plugin; |
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use Jaxon\Jaxon; |
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use Jaxon\Plugin\Request as RequestPlugin; |
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use Jaxon\Request\Support\CallableRepository; |
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class CallableClass extends RequestPlugin |
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{ |
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use \Jaxon\Utils\Traits\Manager; |
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use \Jaxon\Utils\Traits\Validator; |
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use \Jaxon\Utils\Traits\Translator; |
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/** |
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* The callable repository |
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* |
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* @var CallableRepository |
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*/ |
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protected $repository = null; |
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/** |
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* The value of the class parameter of the incoming Jaxon request |
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* |
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* @var string |
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*/ |
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protected $sRequestedClass = null; |
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/** |
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* The value of the method parameter of the incoming Jaxon request |
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* |
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* @var string |
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*/ |
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protected $sRequestedMethod = null; |
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/** |
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* The class constructor |
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* |
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* @param CallableRepository $repository |
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*/ |
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public function __construct(CallableRepository $repository) |
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{ |
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$this->repository = $repository; |
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if(!empty($_GET['jxncls'])) |
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{ |
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$this->sRequestedClass = $_GET['jxncls']; |
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} |
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if(!empty($_GET['jxnmthd'])) |
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{ |
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$this->sRequestedMethod = $_GET['jxnmthd']; |
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} |
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if(!empty($_POST['jxncls'])) |
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{ |
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$this->sRequestedClass = $_POST['jxncls']; |
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} |
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if(!empty($_POST['jxnmthd'])) |
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{ |
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$this->sRequestedMethod = $_POST['jxnmthd']; |
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} |
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} |
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/** |
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* Return the name of this plugin |
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* |
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* @return string |
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*/ |
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public function getName() |
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{ |
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return Jaxon::CALLABLE_CLASS; |
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} |
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/** |
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* Register a callable class |
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* |
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* @param string $sType The type of request handler being registered |
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* @param string $sClassName The name of the class being registered |
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* @param array|string $aOptions The associated options |
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* |
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* @return boolean |
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*/ |
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public function register($sType, $sClassName, $aOptions) |
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{ |
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if($sType != $this->getName()) |
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{ |
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return false; |
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} |
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if(!is_string($sClassName)) |
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{ |
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throw new \Jaxon\Exception\Error($this->trans('errors.objects.invalid-declaration')); |
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} |
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if(is_string($aOptions)) |
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{ |
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$aOptions = ['include' => $aOptions]; |
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} |
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if(!is_array($aOptions)) |
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{ |
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throw new \Jaxon\Exception\Error($this->trans('errors.objects.invalid-declaration')); |
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} |
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$this->repository->addClass($sClassName, $aOptions); |
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return true; |
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} |
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/** |
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* Generate a hash for the registered callable objects |
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* |
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* @return string |
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*/ |
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public function generateHash() |
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{ |
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return $this->repository->generateHash(); |
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} |
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/** |
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* Generate client side javascript code for the registered callable objects |
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* |
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* @return string |
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*/ |
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public function getScript() |
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{ |
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return $this->repository->getScript(); |
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} |
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/** |
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* Check if this plugin can process the incoming Jaxon request |
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* |
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* @return boolean |
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*/ |
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public function canProcessRequest() |
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{ |
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// Check the validity of the class name |
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View Code Duplication |
if($this->sRequestedClass !== null && !$this->validateClass($this->sRequestedClass)) |
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{ |
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$this->sRequestedClass = null; |
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$this->sRequestedMethod = null; |
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} |
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// Check the validity of the method name |
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View Code Duplication |
if($this->sRequestedMethod !== null && !$this->validateMethod($this->sRequestedMethod)) |
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{ |
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$this->sRequestedClass = null; |
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$this->sRequestedMethod = null; |
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} |
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return ($this->sRequestedClass !== null && $this->sRequestedMethod !== null); |
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} |
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/** |
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* Process the incoming Jaxon request |
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* |
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* @return boolean |
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*/ |
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public function processRequest() |
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{ |
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if(!$this->canProcessRequest()) |
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{ |
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return false; |
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} |
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$aArgs = $this->getRequestManager()->process(); |
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// Find the requested method |
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$xCallableObject = $this->repository->getCallableObject($this->sRequestedClass); |
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if(!$xCallableObject || !$xCallableObject->hasMethod($this->sRequestedMethod)) |
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{ |
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// Unable to find the requested object or method |
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throw new \Jaxon\Exception\Error($this->trans('errors.objects.invalid', |
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['class' => $this->sRequestedClass, 'method' => $this->sRequestedMethod])); |
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} |
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// Call the requested method |
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$xCallableObject->call($this->sRequestedMethod, $aArgs); |
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return true; |
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} |
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} |
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Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.