juju-php/router.class.php

<?php
	require_once('path.class.php');
	require_once('response.class.php');
	class Router {
		private $_paths = array();
		private $_base = '/';
		private $responses = array();
		public function __construct($base = null, $paths = null){
			if($paths != null){
				$this->paths($paths);
			}
			if($base != null){
				$this->base($base);
			}
		}
		public function __get($name){
			switch($name){
				case 'base':
					return $this->_base;
				break;
			}
		}
		public function __clone(){
			// No cloning
		}
		public function __destruct(){
			$this->_paths = array();
		}
		public function __toString(){
			return "[Router]";
		}
		public function base($base){
			$this->_base = $base;
		}
		public function url($url){
			return preg_replace('/(\/+)/','/',$url);
		}
		// fn = function(response,args){}
		public function path($path,$fn){
			$obj = false;
			foreach($this->_paths as $k => $p){
				if($p->path == $path){
					$obj = $p;
				}
			}
			if(!$obj){
				$obj = new Path($path);
				array_push($this->_paths,$obj);
			}
			return $obj->handle($fn);
		}
		public function paths($paths){
			foreach($paths as $path => $fn){
				$this->path($path,$fn);
			}
		}
		public function clear(){
			$this->_paths = array();
		}
		public function handle($url,$res = null,$fn = null,$onerror = null){
			if($url[0] != '/'){
				$url = '/'.$url;
			}
			if(is_null($res)){
				$res = new Response($url);
			}else{
				$res->url = $url;
			}
			if(!in_array($res,$this->responses)){
				array_push($this->responses,$res);
			}
			ob_start();
			$handled = false;
			foreach($this->_paths as $k => $p){
				if($p->matches($url)){
					$handled = true;
					try{
						$p($res,$p->args($url));
					}catch(Exception $e){
						if(!is_null($onerror)){
							$onerror($res,$e);
						}else{
							throw $e;
						}
					}
				}
			}
			if(!$handled && !is_null($fn)){
				$fn($res,$url);
			}
			$res->output = ob_get_contents();
			ob_end_clean();
			return $res;
		}
	}
?>