Class.Upload.php

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<?php
/*
 * @author Anakeen
 * @license http://creativecommons.org/licenses/by-nc-sa/2.0/fr/ Anakeen - licence CC
 * @package FDL
*/
/**
 * Generated Header (not documented yet)
 *
 * @author Anakeen 2000
 * @version $Id: Class.Upload.php,v 1.2 2003/08/18 15:46:42 eric Exp $
 * @license http://opensource.org/licenses/gpl-license.php GNU Public License
 * @package FDL
 * @subpackage CORE
 */
/**
 */
//--------------------------------#
// LICENSE
//--------------------------------#
//
///// fileupload.class /////
//Copyright (c) 1999 David Fox, Angryrobot Productions
//(http://www.angryrobot.com) All rights reserved.
//
//Redistribution and use in source and binary forms, with or without
//modification, are permitted provided that the following conditions are met:
//1. Redistributions of source code must retain the above copyright notice,
//this list of conditions and the following disclaimer.
//2. Redistributions in binary form must reproduce the above copyright notice,
//this list of conditions and the following disclaimer in the documentation
//and/or other materials provided with the distribution.
//3. Neither the name of author nor the names of its contributors may be used
//to endorse or promote products derived from this software without specific
//prior written permission.
//
//DISCLAIMER:
//THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS" AND ANY
//EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
//WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
//DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY
//DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
//(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
//LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
//ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
//(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
//THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// ---------------------------------------------------------------------------
//  $Id: Class.Upload.php,v 1.2 2003/08/18 15:46:42 eric Exp $
//  $Log: Class.Upload.php,v $
//  Revision 1.2  2003/08/18 15:46:42  eric
//  phpdoc
//
//  Revision 1.1  2002/01/08 12:41:34  eric
//  first
//
//  Revision 1.2  2001/02/08 12:07:18  marianne
//  Creation de la directory 'path' si elle n'existe pas
//
//  Revision 1.1  2001/01/22 11:53:04  marianne
//  *** empty log message ***
//
// ---------------------------------------------------------------------------
//
$CLASS_UPLOAD_PHP = '$Id:';
/*
Error codes:
  0 - "No file was uploaded"
  1 - "Maximum file size exceeded"
  2 - "Maximum image size exceeded"
  3 - "Only specified file type may be uploaded"
  4 - "File already exists" (save only)
*/

class uploader
{
    
    var $file;
    var $errors;
    var $accepted = "";
    var $new_file = "";
    var $max_filesize = 100000;
    var $max_image_width = 1000;
    var $max_image_height = 1000;
    
    function max_filesize($size)
    {
        $this->max_filesize = $size;
    }
    
    function max_image_size($width, $height)
    {
        $this->max_image_width = $width;
        $this->max_image_height = $height;
    }
    
    function upload($filename, $accept_type, $extension)
    {
        // get all the properties of the file
        $index = array(
            "file",
            "name",
            "size",
            "type"
        );
        for ($i = 0; $i < 4; $i++) {
            $file_var = '$' . $filename . (($index[$i] != "file") ? "_" . $index[$i] : "");
            eval('global ' . $file_var . ';');
            eval('$this->file[$index[$i]]=' . $file_var . ';');
        }
        
        if ($this->file["file"] && $this->file["file"] != "none") {
            //test max size
            if ($this->max_filesize && $this->file["size"] > $this->max_filesize) {
                $this->errors[] = "Taille maximale dépassée:. Le fichier ne doit pas excéder " . $this->max_filesize / 1000 . "KB.";
                return False;
            }
            if (preg_match("/image/", $this->file["type"])) {
                
                $image = getimagesize($this->file["file"]);
                $this->file["width"] = $image[0];
                $this->file["height"] = $image[1];
                // test max image size
                if (($this->max_image_width || $this->max_image_height) && (($this->file["width"] > $this->max_image_width) || ($this->file["height"] > $this->max_image_height))) {
                    $this->errors[] = "Les dimensions de l'image sont trop importantes. " . "L'image ne doit pas faire plus de : " . $this->max_image_width . " x " . $this->max_image_height . " pixels";
                    return False;
                }
                switch ($image[2]) {
                    case 1:
                        $this->file["extension"] = ".gif";
                        break;

                    case 2:
                        $this->file["extension"] = ".jpg";
                        break;

                    case 3:
                        $this->file["extension"] = ".png";
                        break;

                    default:
                        $this->file["extension"] = $extension;
                        break;
                }
            } else if (!preg_match("/(\.)([a-z0-9]{3,5})$/", $this->file["name"]) && !$extension) {
                // add new mime types here
                switch ($this->file["type"]) {
                    case "text/plain":
                        $this->file["extension"] = ".txt";
                        break;

                    default:
                        break;
                }
            } else {
                $this->file["extension"] = $extension;
            }
            // check to see if the file is of type specified
            if ($accept_type) {
                $pattern = preg_quote($accept_type);
                if (preg_match("/$pattern/", $this->file["type"])) {
                    $this->accepted = True;
                } else {
                    $this->errors[] = "Seuls les fichiers de type " . preg_replace("/\|/", " or ", $accept_type) . " sont acceptés";
                }
            } else {
                $this->accepted = True;
            }
        } else {
            $this->errors[] = "Fichier introuvable...";
        }
        return $this->accepted;
    }
    
    function save_file($path, $mode)
    {
        global $NEW_NAME;
        
        if ($this->accepted) {
            if (!file_exists($path)) {
                mkdir($path, 0775);
            }
            // very strict naming of file.. only lowercase letters,
            // numbers and underscores
            $new_name = preg_replace("/[^a-z0-9._]/", "", preg_replace("/ /", "_", preg_replace("/%20/", "_", strtolower($this->file["name"]))));
            // check for extension and remove
            if (preg_match("/(\.)([a-z0-9]{3,5})$/", $new_name)) {
                $pos = strrpos($new_name, ".");
                if (!isset($this->file["extension"])) {
                    $this->file["extension"] = substr($new_name, $pos, strlen($new_name));
                }
                $new_name = substr($new_name, 0, $pos);
            }
            $new_name = uniqid("") . "_" . $new_name;
            if (!isset($this->file["extension"])) $this->file["extension"] = "";
            $this->new_file = $path . $new_name . $this->file["extension"];
            $NEW_NAME = $new_name . $this->file["extension"];
            
            switch ($mode) {
                case 1: // overwrite mode
                    $aok = copy($this->file["file"], $this->new_file);
                    break;

                case 2: // create new with incremental extension
                    while (file_exists($path . $new_name . $copy . $this->file["extension"])) {
                        $copy = "_copy" . $n;
                        $n++;
                    }
                    $this->new_file = $path . $new_name . $copy . $this->file["extension"];
                    $aok = copy($this->file["file"], $this->new_file);
                    break;

                case 3: // do nothing if exists, highest protection
                    if (file_exists($this->new_file)) {
                        $this->errors[] = "Le fichier &quot" . $this->new_file . "&quot existe déjà";
                    } else {
                        $aok = rename($this->file["file"], $this->new_file);
                    }
                    break;

                default:
                    break;
            }
            if (!$aok) {
                unset($this->new_file);
            }
            return $aok;
        }
    }
}
?>