/SlightPHP.php

<?php

/*{{{LICENSE

+-----------------------------------------------------------------------+

| SlightPHP Framework                                                   |

+-----------------------------------------------------------------------+

| This program is free software; you can redistribute it and/or modify  |

| it under the terms of the GNU General Public License as published by  |

| the Free Software Foundation. You should have received a copy of the  |

| GNU General Public License along with this program.  If not, see      |

| http://www.gnu.org/licenses/.                                         |

| Copyright (C) 2008-2009. All Rights Reserved.                         |

+-----------------------------------------------------------------------+

| Supports: http://www.slightphp.com                                    |

+-----------------------------------------------------------------------+

}}}*/

/**

 * @package SlightPHP

 */

if(!class_exists("SlightPHP",false)):

final class SlightPHP{

	/**

	 * @var string

	 */

	public static $appDir=".";



	/**

	 * @var string

	 */

	public static $pathInfo="";



	/**

	 * current zone

	 * @var string

	 */

	public static $zone;

	/**

	 * @var string

	 */

	public static $defaultZone="zone";

	

	/**

	 * current page

	 * @var string

	 */

	public static $page;

	/**

	 * @var string

	 */

	public static $defaultPage="page";

	/**

	 * current entry

	 * @var string

	 */

	public static $entry;

	/**

	 * @var string

	 */

	public static $defaultEntry="entry";

	/**

	 * split flag of zone,classs,method

	 *

	 * @var string

	 */

	public static $splitFlag="/";



	/**

	 * zoneAlias

	 *

	 * @var array

	 */

	public static $zoneAlias;



	/**

	 * @param string $zone

	 * @param string $alias

	 * @return boolean

	 */

	public static function setZoneAlias($zone,$alias){

		self::$zoneAlias[$zone]=$alias;

		return true;

	}

	/**

	 * @param string $zone

	 * @return string | boolean

	 */

	public static function getZoneAlias($zone){

		return isset(self::$zoneAlias[$zone]) ? self::$zoneAlias[$zone] : false;

	}

	

	/**

	 * defaultZone set

	 * 

	 * @param string $zone

	 * @return boolean

	 */



	public static function setDefaultZone($zone){

		self::$defaultZone = $zone;

		return true;

	}

	/**

	 * defaultZone get

	 * 

	 * @return string

	 */



	public static function getDefaultZone(){

		return self::$defaultZone;

	}

	/**

	 * defaultClass set

	 * 

	 * @param string $page

	 * @return boolean

	 */

	public static function setDefaultPage($page){

		self::$defaultPage = $page;

		return true;

	}

	/**

	 * getDefaultClass get

	 * 

	 * @return string

	 */

	public static function getDefaultPage(){

		return self::$defaultPage;

	}

	/**

	 * defaultMethod set

	 * 

	 * @param string $entry

	 * @return boolean

	 */

	public static function setDefaultEntry($entry){

		self::$defaultEntry = $entry;

		return true;

	}

	/**

	 * defaultMethod get

	 * 

	 * @return string $method

	 */

	public static function getDefaultEntry(){

		return self::$defaultEntry;

	}

	/**

	 * splitFlag set

	 * 

	 * @param string $flag

	 * @return boolean

	 */

	public static function setSplitFlag($flag){

		self::$splitFlag = $flag;

		return true;

	}

	/**

	 * defaultMethod get

	 * 

	 * @return string

	 */

	public static function getSplitFlag(){

		return self::$splitFlag;

	}

	/**

	 * appDir set && get

	 * IMPORTANT: you must set absolute path if you use extension mode(extension=SlightPHP.so)

	 *

	 * @param string $dir

	 * @return boolean

	 */



	public static function setAppDir($dir){

		self::$appDir = $dir;

		return true;

	}

	public static function setPathInfo($pathInfo){

		self::$pathInfo = $pathInfo;

		return true;

	}

	/**

	 * appDir get

	 * 

	 * @return string

	 */

	public static function getAppDir(){

		return self::$appDir;

	}

	/**

	 * debug status set

	 *

	 * @param boolean $debug

	 * @return boolean

	 */

	public static function setDebug($debug){

		self::$_debug = $debug;

		return true;

	}

	/**

	 * debug status get

	 * 

	 * @return boolean 

	 */

	public static function getDebug(){

		return self::$_debug;

	}



	/**

	 * main method!

	 *

	 * @param string $path

	 * @return boolean

	 */



	public static function run($path=""){

		$splitFlag = preg_quote(self::$splitFlag,"/");

		$path_array = array();

		if(!empty($path)){

			$isPart = true;

			if($path[0]=="/")$path=substr($path,1);

			$path_array = preg_split("/[$splitFlag\/]/",$path,-1);

		}else{

			$isPart = false;

			if(!empty(self::$pathInfo)){

				$url = self::$pathInfo;

			}else{

				if(!empty($_GET['PATH_INFO'])){

					$url = $_GET['PATH_INFO'];

				}else{

					$url = !empty($_SERVER["PATH_INFO"])?$_SERVER["PATH_INFO"]:"";

				}

			}

			if(!empty($url)){

				if($url[0]=="/")$url=substr($url,1);

				$path_array = preg_split("/[$splitFlag\/]/",$url,-1);

			}

		}



		$zone	= !empty($path_array[0]) ? $path_array[0] : self::$defaultZone ;

		$page	= !empty($path_array[1]) ? $path_array[1] : self::$defaultPage ;

		$entry	= !empty($path_array[2]) ? $path_array[2] : self::$defaultEntry ;



		if(self::$zoneAlias && ($key = array_search($zone,self::$zoneAlias))!==false){

			$zone = $key;

		}

		if(!$isPart){

			self::$zone	= $zone;

			self::$page	= $page;

			self::$entry	= $entry;

		}else{

			if($zone == self::$zone && $page == self::$page && $entry == self::$entry){

				self::debug("part ignored [$path]");

				return false;

			}

		}



		$app_file = self::$appDir . DIRECTORY_SEPARATOR . $zone . DIRECTORY_SEPARATOR . $page . ".page.php";

		if(!is_file($app_file)){

			self::debug("file[$app_file] does not exists");

			return false;

		}else{

			require_once(realpath($app_file));

		}

		$method = "Page".$entry;

		$classname = $zone ."_". $page;

		

		if(!class_exists($classname,false)){

			self::debug("class[$classname] does not exists");

			return false;

		}

		$path_array[0] = $zone;

		$path_array[1] = $page;

		$path_array[2] = $entry;

		$classInstance = new $classname($path_array);

		if(!method_exists($classInstance,$method)){

			self::debug("method[$method] does not exists in class[$classname]");

			return false;

		}

		return call_user_func(array(&$classInstance,$method),$path_array);



	}



	/**

	 * @var boolean

	 */

	private static $_debug=0;



	/*private*/

	private function debug($debugmsg){

		if(self::$_debug){

			error_log($debugmsg);

			echo "<!--slightphp debug: ".$debugmsg."-->";

		}

	}

}

endif;