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Die FW_HTTP_Request Klasse ist ein Singleton, da ja nur ein Request existieren kann. Diese Klasse beinhaltet alle vom Nutzer übergebenen Informationen(header, variablen, dateien, authorisierungen) sowie die MVC Controller/Actions/Params um dem Front Controller die nötigen Infos zu geben.

/** (c) 2010 Arne "w13531" Wenzel [ mailto: w13531 (at) terrorhippiecrew (dot) net ] **/
class FW_HTTP_Request extends FW_Object {

    private $post;

    private $get;

    private $cookie;

    private $file;

    private $header;

    private $auth;

    private $server;

    private $MVC_Controller;

    private $MVC_Action;

    private $MVC_Action_Params;

    private static $instance = null;

    /**
    * private clone
    **/
    private function __clone() {}

    /**
    * private constructor
    **/
    private function __construct() {

        $this->post   = &$_POST;
        $this->get    = &$_GET;
        $this->cookie = &$_COOKIE;
        $this->file   = &$_FILES;

        foreach($_SERVER as $key => $value) {
            if(substr($key, 0, 5)== 'HTTP_') {
                $key = strtolower($key);                 //weil es schöner aussieht
                $this->header[substr($key,5)] = $value;  //HTTP_ abschneiden
            } else if($key != 'PHP_AUTH_USER' && $key != 'PHP_AUTH_PW') {
                $key = strtolower($key);
                $this->server[$key] = $value;
            }
        } 

        if(isset($_SERVER['PHP_AUTH_USER'])) {
            $this->auth['user'] = $_SERVER['PHP_AUTH_USER'];
            $this->auth['pass'] = $_SERVER['PHP_AUTH_PW'];
        } else {
            $this->auth = null;
        }
    }

    /**
    * singleton
    **/
    public static function getInstance() {

        if(self::$instance === null) {
            self::$instance = new self();
        }

        return self::$instance;
    }   

    /**
    * sets the name of the controller
    **/
    public function setControllerName($name) {
        $this->MVC_Controller = strtolower($name);
    }

    /**
    * gets the name of the controller
    **/
    public function getControllerName() {
        return $this->MVC_Controller;
    }

    /**
    * sets the name of the action method
    **/
    public function setActionName($name) {
        $this->MVC_Action = strtolower($name);
    }

    /**
    * gets the name of the action method
    **/
    public function getActionName() {
        return $this->MVC_Action;
    }

    /**
    * sets the paramteter for the action method
    **/
    public function setActionParams($params) {
        $this->MVC_Action_Params = $params;
    }

    /**
    * gets the parameter for action method
    **/
    public function getActionParams() {
        return $this->MVC_Action_Params;
    }

    /**
    * get authentication data
    **/
    public function getAuthData() {
        return $this->auth;
    }

    /**
    * header information exisits
    **/
    public function issetHeader($key) {
        $key = strtolower($key);
        return (isset($this->header[$key]));
    }

    /**
    * get header informations
    **/
    public function getHeader($key) {
        $key = strtolower($key);
        if($this->issetHeader($key)) {
            return $this->header[$key];
        }
        return null;
    }

    /**
    * server information exisits
    **/
    public function issetServer($key) {
        $key = strtolower($key);
        return (isset($this->server[$key]));
    }

    /**
    * get server informations
    **/
    public function getServer($key) {
        $key = strtolower($key);
        if($this->issetServer($key)) {
            return $this->server[$key];
        }
        return null;
    }

    /**
    * Get var exists
    **/
    public function issetGet($key) {
        return (isset($this->get[$key]));
    }

    /**
    * gets Get data
    **/
    public function getGet($key) {
        if($this->issetGet($key)) {
            return $this->get[$key];
        }
        return null;
    }

    /**
    * post var exists
    **/
    public function issetPost($key) {
        return (isset($this->post[$key]));
    }

    /**
    * gets Post data
    **/
    public function getPost($key) {
        if($this->issetPost($key)) {
            return $this->post[$key];
        }
        return null;
    }

    /**
    * file exists
    **/
    public function issetFile($key) {
        return (isset($this->file[$key]));
    }

    /**
    * gets a file
    **/
    public function getFile($key) {
        if($this->issetFile($key)) {
            return $this->file[$key];
        }
        return null;
    }

    /**
    * cookie exists
    **/
    public function issetCookie($key) {
        return (isset($this->cookie[$key]));
    }

    /**
    * gets cookie data
    **/
    public function getCookie($key) {
        if($this->issetCookie($key)) {
            return $this->cookie[$key];
        }
        return null;
    }

}