extranet/includes/cache.php

<?php
/**
 * Cache - G<EFBFBD>re le cache de la page et des diff<EFBFBD>rents fichiers
 * @package Cache
 * @author Michael RICOIS
 * @copyright Scores&Decisions
 */

class Cache {
	
	public $idEntreprise = '';
	public $siren = '';
	public $page = '';
	public $content = '';
	public $length = '';
	
	/*
	 * Construction du nom du fichier
	 * [page]-[idEntreprise].html
	 * [page]-[siren].html
	 */
	public $fileName = '';
	public $path = '';
	
	private $maxTime = 4; //4h max en cache
	private $CacheRefreshHours = 14; //Raffraichir les pages apr<70>s 14heures
	
	function __construct(){
		$this->path = realpath(dirname(__FILE__).'/../cache/');
	}
	
	function startCapture($page, $siren, $idEntreprise = 0){
		global $firephp;
		$this->page = str_replace('.php','',$page);
		$this->idEntreprise = $idEntreprise;
		$this->siren = $siren;
		if ($this->siren==0){
			$this->fileName = $this->path.'/'.$this->page.'-'.$this->idEntreprise.'.html';
		}else{
			$this->fileName = $this->path.'/'.$this->page.'-'.$this->siren.'.html';
		}	
		if(!$this->isInCache()){
			$firephp->log('Pas en CACHE','CACHE');
			ob_start();
			return TRUE;	
		}else{
			$firephp->log('En CACHE','CACHE');
			return FALSE;
		}	
	}
	
	function stopCapture(){
		if(!$this->isInCache()){
			$this->content = ob_get_contents();
			$this->length  = ob_get_length();
			ob_end_flush();
			$this->content.='<!-- Page fourni par le cache -->'; 	
			$this->create();
		}
	}
	
	function isInCache(){
		if(file_exists($this->fileName) && !$this->timeOver()) return TRUE;
		else return FALSE;
	}

	function timeOver(){
		global $firephp;
		$today = mktime(date('G'), date('i'), date('s'), date("m") , date("d"), date("Y"));
		$todayMaxTime = mktime(date('G')+$this->maxTime, 0, 0, date("m"), date("d"), date("Y"));
		$today14 = mktime($this->CacheRefreshHours, 0, 0, date("m"), date("d"), date("Y"));
	
		$dateFile = filemtime($this->fileName);
		$firephp->log($dateFile,	'CACHE : dateFile ');
		$firephp->log($today,		'CACHE : today ');
		$firephp->log($todayMaxTime,'CACHE : todayMaxTime');
		$firephp->log($today14,		'CACHE : today14 ');
		
		if( ($dateFile>$todayMaxTime) || 
			($dateFile>$today14 && $today>$today14) ) 
			return TRUE;
		else return FALSE;
	}
	
	function delete(){}
	
	function displayCache(){
		if(file_exists($this->fileName)){
			return file_get_contents($this->fileName);
		}else{
			return 'Erreur';
		}
	}
	
	function create(){
		//Retrait <script>...</script>
		preg_replace('@<script[^>]*?>.*?</script>@si', '', $this->content);
		if( !file_put_contents($this->fileName, $this->content))
		{
			//TODO : Gestion des erreurs
		} 
	}
	
}
?>