<?php
//////////////////////////////////////////////////////////////////////////////////////////////////////
// L'encrier 1.2.0                                                                                  //
// Copyright (C) 2002-2004 Sylvain Eliade <sylvain@journalintime.com>                               //
// This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike License.   //
// To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/1.0/          //
// or send a letter to Creative Commons, 559 Nathan Abbott Way, Stanford, California 94305, USA.    //
// Francais (brouillon): http://creativecommons.org/projects/international/fr/translated-license    //
//////////////////////////////////////////////////////////////////////////////////////////////////////

// Système de cache
// v0.1.3

class cache {
    var $err = array(
        "stop"  =>  "oui",
        "log"   =>  "oui",
        "debug" =>  "oui");

    var $chemin = "../datas/";

    // Gestion des erreurs
    function _err($err,$debug="") {
        // Si le debug est activé
        if($this->err[debug] == "oui" && !empty($debug)) $err.= "\n// DEBUG //\n".$debug;

        // Si on log les erreurs
        if($this->err[log] == "oui") $this->erreurs[] = $err;

        // Si on s'arrête sur les erreurs
        if($this->err[stop] == "oui") {
            echo "<pre>".htmlentities(stripslashes($err))."</pre>";
            exit;
        }
        $this->erreur = $err;
        return FALSE;
    }

    function creer($journal,$url,$contenu) {
        $url = $this->chemin."cache/{$journal}/".$url;
        $fp = @fopen($url,"w");
        if(!$fp) return $this->_err("Problème technique.","Ne peux ouvrir {$url}");
        fputs($fp,$contenu);
        fclose($fp);
        return $url;
    }

    function supprimer($journal,$url) {
        if(!file_exists($this->chemin."cache/".$journal."/".$url)) return TRUE;
        if(!unlink($this->chemin."cache/".$journal."/".$url))
            return $this->_err("Problème technique.","Impossible de supprimer ".$this->chemin."cache/".$journal."/".$url);
        return TRUE;
    }
    
    function suppr_ecrit($journal,$id) {
        $requete = "SELECT date,name FROM ecrits WHERE journal='{$journal}' AND id='{$id}'";
        $res = mysql_query($requete);
        if(!$res) return FALSE;
        
        $rec = mysql_fetch_assoc($res);
        $this->supprimer($journal,date("Y_m_d_",$rec[date]).$id);
        if(!empty($rec[name])) $this->supprimer($journal,date("Y_m_d_",$rec[date]).$rec[name]);
        
        $this->supprimer($journal,date("Y_m",$rec[date]));
        return TRUE;
    }

    function vider_forum($journal) {
        $h = opendir($this->chemin."cache/".$journal);
        $base = $this->chemin."cache/".$journal."/";
        while($d = readdir($h)) {
            if(substr($d,0,5) == "forum") $this->supprimer($journal,$d);
        }
        closedir($h);
        return TRUE;
    }

    function vider_forum_mois($journal,$mois) {
        $h = opendir($this->chemin."cache/".$journal);
        $base = $this->chemin."cache/".$journal."/";
        $mois = substr($mois,0,4)."_".substr($mois,4);
        while($d = readdir($h)) {
            if(substr($d,0,13) == "forum_".$mois) {
            	if(!$this->supprimer($journal,$d)) return FALSE;
            }
        }
        closedir($h);
        return TRUE;
    }

    function vider($journal) {
        $h = opendir($this->chemin."cache/".$journal);
        $base = $this->chemin."cache/".$journal."/";
        while($d = readdir($h)) {
            if(substr($d,0,1) != ".") $this->supprimer($journal,$d);
        }
        closedir($h);
        return TRUE;
    }
}
?>