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<?php |
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namespace Vectorface\SnappyRouter\Plugin; |
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use \Exception; |
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use Vectorface\SnappyRouter\Controller\AbstractController; |
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use Vectorface\SnappyRouter\Di\Di; |
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use Vectorface\SnappyRouter\Di\DiProviderInterface; |
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use Vectorface\SnappyRouter\Handler\AbstractHandler; |
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use Vectorface\SnappyRouter\Request\AbstractRequest; |
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/** |
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* The base class for all plugins. It is recommended to extend this class |
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* instead of implementing the PluginInterface directly. |
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* @copyright Copyright (c) 2014, VectorFace, Inc. |
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* @author Dan Bruce <[email protected]> |
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*/ |
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abstract class AbstractPlugin implements PluginInterface, DiProviderInterface |
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{ |
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/** the default priority of a plugin */ |
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const PRIORITY_DEFAULT = 1000; |
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/** A string constant indicating the whitelist/blacklist applies to all |
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actions within a controller */ |
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const ALL_ACTIONS = 'all'; |
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/** The plugin options */ |
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protected $options; |
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// properties for plugin/service compatibility |
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// both properties cannot be set at the same time (one or the other or both |
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// must be null at any point) |
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private $whitelist; |
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private $blacklist; |
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/** |
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* Constructor for the plugin. |
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* @param array $options The array of options. |
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*/ |
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public function __construct($options) |
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{ |
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$this->options = $options; |
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} |
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/** |
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* Invoked directly after the router decides which handler will be used. |
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* @param AbstractHandler $handler The handler selected by the router. |
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*/ |
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public function afterHandlerSelected(AbstractHandler $handler) |
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{ |
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} |
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/** |
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* Invoked after the entire route has been handled. |
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* @param AbstractHandler $handler The handler selected by the router. |
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*/ |
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public function afterFullRouteInvoked(AbstractHandler $handler) |
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{ |
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} |
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/** |
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* Invoked if an exception is thrown during the route. |
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* @param AbstractHandler $handler The handler selected by the router. |
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* @param Exception $exception The exception that was thrown. |
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*/ |
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public function errorOccurred(AbstractHandler $handler, Exception $exception) |
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{ |
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} |
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/** |
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* Returns a sortable number for sorting plugins by execution priority. A lower number indicates |
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* higher priority. |
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* @return integer The execution priority (as a number). |
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*/ |
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public function getExecutionOrder() |
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{ |
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return self::PRIORITY_DEFAULT; |
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} |
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/** |
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* Sets the controller/action whitelist of this particular plugin. Note that |
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* setting a whitelist will remove any previously set blacklists. |
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* @param array $whitelist The controller/action whitelist. |
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* @return AbstractPlugin Returns $this. |
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*/ |
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public function setWhitelist($whitelist) |
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{ |
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$this->whitelist = $whitelist; |
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$this->blacklist = null; |
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} |
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/** |
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* Sets the controller/action blacklist of this particular plugin. Note that |
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* setting a blacklist will remove any previously set whitelists. |
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* @param array $blacklist The controller/action blacklist. |
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* @return AbstractPlugin Returns $this. |
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*/ |
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public function setBlacklist($blacklist) |
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{ |
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$this->whitelist = null; |
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$this->blacklist = $blacklist; |
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} |
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/** |
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* Returns whether or not the given controller and action requested should |
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* invoke this plugin. |
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* @param string $controller The requested controller. |
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* @param string $action The requested action. |
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* @return boolean Returns true if the given plugin is allowed to run against |
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* this controller/action and false otherwise. |
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*/ |
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public function supportsControllerAndAction($controller, $action) |
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{ |
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if (null === $this->blacklist) { |
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if (null === $this->whitelist) { |
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// plugin has global scope |
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return true; |
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} |
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// we use a whitelist so ensure the controller is in the whitelist |
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if (!isset($this->whitelist[$controller])) { |
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return false; |
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} |
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// the whitelisted controller could be an array of actions or it could |
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// be mapped to the "all" string |
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if (is_array($this->whitelist[$controller])) { |
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return in_array($action, $this->whitelist[$controller]); |
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} |
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return (self::ALL_ACTIONS === (string)$this->whitelist[$controller]); |
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} |
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// if the controller isn't in the blacklist at all, we're good |
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if (!isset($this->blacklist[$controller])) { |
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return true; |
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} |
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// if the controller is not an array we return false |
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// otherwise we check if the action is listed in the array |
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return is_array($this->blacklist[$controller]) && |
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!in_array($action, $this->blacklist[$controller]); |
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} |
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/** |
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* Retrieve an element from the DI container. |
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* @param string $key The DI key. |
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* @param boolean $useCache (optional) An optional indicating whether we |
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* should use the cached version of the element (true by default). |
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* @return mixed Returns the DI element mapped to that key. |
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*/ |
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public function get($key, $useCache = true) |
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{ |
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return Di::getDefault()->get($key, $useCache); |
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} |
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/** |
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* Sets an element in the DI container for the specified key. |
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* @param string $key The DI key. |
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* @param mixed $element The DI element to store. |
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* @return Di Returns the Di instance. |
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*/ |
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public function set($key, $element) |
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{ |
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return Di::getDefault()->set($key, $element); |
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} |
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} |
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Vectorface /
SnappyRouter
