root/trunk/www/dpics.php

<?php
/****************************************************** Open .node ***
 * Description:
 * Status:        Stable.
 * Author:        Alexandre Dath <alexandre@dotnode.com>
 * $Id$
 *
 * Copyright (C) 2005 Alexandre Dath <alexandre@dotnode.com>
 *
 * 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; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 ******************** http://opensource.ikse.net/projects/dotnode ***/

include('../includes/includes.inc.php');

$token = retreive_url_info($_SERVER['PHP_SELF']);

$nb_arg = count($token);

if($nb_arg == 5)
    $img = array(
        'size' => $token[1],
        'subdir1'=> $token[2],
        'subdir2'=> $token[3],
        'filename' => $token[4],
        'path' => $token[2].'/'.$token[3].'/'.$token[4]
        );

elseif($nb_arg == 4)
    $img = array(
                'size' => null,
        'subdir1' => $token[1],
        'subdir2' => $token[2],
        'filename' => $token[3],
                'path' => $token[1].'/'.$token[2].'/'.$token[3]
        );

if(ereg('x', $img['size']))
{
    list($s1, $s2) = split('x', $img['size']);
    if(is_numeric($s1) && $s1>1)
        $width = $s1;
    else
        $width = 1500;
    if(is_numeric($s2) && $s1>1)
        $height = $s2;
    else
        $height = 1125;
}
elseif(is_numeric($img['size']))
{
    $width = $img['size'];
    $height = 1125;
}
else
{
    unset($img['size']);
}

if(file_exists(ALBUMPATH.'/'.$img['path']))
{
    $real_file = ALBUMPATH.'/'.$img['path'];
}

if(is_null($img['size']) || $img['size']=='0x0' || $img['size']=='0')
{
    header('location: /albums/'.$img['path']);
    exit();
}
elseif(is_numeric($width) && is_numeric($height))
{
    $sized_file = ALBUMSIZEDPATH.'/'.$img['size'].'/'.$img['subdir1'].'_'.$img['subdir2'].'_'.$img['filename'];
}
else
{
    header('Location: /files/pics/nopics.png');
    exit();
}

if($img['path'] && file_exists($real_file))
{
    if(!file_exists($sized_file))
    {
        error_log("$_DOMAIN | Creation du cache pour {$img['path']} en $width x $height");
        if(!is_dir(ALBUMSIZEDPATH.'/'.$img['size']))
            mkdir(ALBUMSIZEDPATH.'/'.$img['size']);
        list($w, $h, $type, $attr) = getimagesize($real_file);
        
        switch($type)
        {
        case 3:
            $src = imagecreatefrompng($real_file);
            $ext = 'png';
            break;
        case 2:
            $src = imagecreatefromjpeg($real_file);
            $ext = 'jpeg';
            break;
        case 1:
            $src = imagecreatefromgif($real_file);
                        $ext = 'gif';
                        break;
        default:
            header('Location: /files/pics/nopics.png');
            exit();
        }
        if($src)
        {
            $wh_ratio = $w/$h;

            if($w > $width || $h > $height)
                if($wh_ratio > $width/$height)
                {
                    $image_width = $width;
                    $image_height = floor($h*$width/$w);
                }
                else
                {
                    $image_width = floor($w*$height/$h);
                    $image_height = $height;
                }
            else
            {
                header('location: /albums/'.$img['path']);
                exit();
            }

            error_log("$_DOMAIN | $real_file - w:$w -> $image_width   /    h:$h -> $image_height path: $sized_file");

            $image = imagecreatetruecolor ($image_width, $image_height);
            $color_white = imagecolorallocate ( $image, 255,255,255);
            imagefilledrectangle($image, 0,0, $image_width, $image_height, $color_white);
            imagecopyresampled($image, $src, 0,0, 0,0, $image_width, $image_height, $w, $h);


            switch($ext)
            {
            case 'jpeg':
                imagejpeg($image, $sized_file);
                break;
            case 'png':
            default:
                imagepng($image, $sized_file);
                break;
            }
        }
    }
    header('Location: /albums/sized/'.$img['size'].'/'.$img['subdir1'].'_'.$img['subdir2'].'_'.$img['filename']);
    exit();
}
else
{
    header('Location: /files/pics/nopics.png');
    exit();
}

?>