piwigo/upload.php

<?php
// +-----------------------------------------------------------------------+
// | PhpWebGallery - a PHP based picture gallery                           |
// | Copyright (C) 2002-2003 Pierrick LE GALL - pierrick@phpwebgallery.net |
// | Copyright (C) 2003-2005 PhpWebGallery Team - http://phpwebgallery.net |
// +-----------------------------------------------------------------------+
// | branch        : BSF (Best So Far)
// | file          : $RCSfile$
// | last update   : $Date$
// | last modifier : $Author$
// | revision      : $Revision$
// +-----------------------------------------------------------------------+
// | 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                                          |
// |                                                                       |
// | 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
// | USA.                                                                  |
// +-----------------------------------------------------------------------+
define('PHPWG_ROOT_PATH','./');
include_once( PHPWG_ROOT_PATH.'include/common.inc.php' );

//------------------------------------------------------------------- functions
// The validate_upload function checks if the image of the given path is valid.
// A picture is valid when :
//     - width, height and filesize are not higher than the maximum
//       filesize authorized by the administrator
//     - the type of the picture is among jpg, gif and png
// The function returns an array containing :
//     - $result['type'] contains the type of the image ('jpg', 'gif' or 'png')
//     - $result['error'] contains an array with the different errors
//       found with the picture
function validate_upload( $temp_name, $my_max_file_size,
                          $image_max_width, $image_max_height )
{
  global $conf, $lang;
		
  $result = array();
  $result['error'] = array();
  //echo $_FILES['picture']['name']."<br />".$temp_name;
  $extension = get_extension( $_FILES['picture']['name'] );
  if (!in_array($extension, $conf['picture_ext']))
  {
    array_push( $result['error'], $lang['upload_advise_filetype'] );
    return $result;
  }
  if ( !isset( $_FILES['picture'] ) )
  {
    // do we even have a file?
    array_push( $result['error'], "You did not upload anything!" );
  }
  else if ( $_FILES['picture']['size'] > $my_max_file_size * 1024 )
  {
    array_push( $result['error'],
                $lang['upload_advise_filesize'].$my_max_file_size.' KB' );
  }
  else
  {
    // check if we are allowed to upload this file_type
    // upload de la photo sous un nom temporaire
    if ( !move_uploaded_file( $_FILES['picture']['tmp_name'], $temp_name ) )
    {
      array_push( $result['error'], $lang['upload_cannot_upload'] );
    }
    else
    {
      $size = getimagesize( $temp_name );
      if ( isset( $image_max_width )
           and $image_max_width != ""
           and $size[0] > $image_max_width )
      {
        array_push( $result['error'],
                    $lang['upload_advise_width'].$image_max_width.' px' );
      }
      if ( isset( $image_max_height )
           and $image_max_height != ""
           and $size[1] > $image_max_height )
      {
        array_push( $result['error'],
                    $lang['upload_advise_height'].$image_max_height.' px' );
      }
      // $size[2] == 1 means GIF
      // $size[2] == 2 means JPG
      // $size[2] == 3 means PNG
      switch ( $size[2] )
      {
      case 1 : $result['type'] = 'gif'; break;
      case 2 : $result['type'] = 'jpg'; break;
      case 3 : $result['type'] = 'png'; break;
      default :
        array_push( $result['error'], $lang['upload_advise_filetype'] );  
      }
    }
  }
  if ( sizeof( $result['error'] ) > 0 )
  {
    // destruction de l'image avec le nom temporaire
    @unlink( $temp_name );
  }
  else
  {
    @chmod( $temp_name, 0644);
  }
  return $result;
}	

//-------------------------------------------------- access authorization check
check_login_authorization();
check_cat_id( $_GET['cat'] );
if ( isset( $page['cat'] ) and is_numeric( $page['cat'] ) )
{
  check_restrictions( $page['cat'] );
  $result = get_cat_info( $page['cat'] );
  $page['cat_dir']        = get_complete_dir( $page['cat'] );
  $page['cat_site_id']    = $result['site_id'];
  $page['cat_name']       = $result['name'];
  $page['cat_uploadable'] = $result['uploadable'];
  if ($page['cat_site_id'] != 1 or !$page['cat_uploadable'])
  {
    echo '<div style="text-align:center;">'.$lang['upload_forbidden'].'<br />';
    echo '<a href="./category.php">';
    echo $lang['thumbnails'].'</a></div>';
    exit();
  }
}

$error = array();
$page['upload_successful'] = false;
if ( isset( $_GET['waiting_id'] ) )
{
  $page['waiting_id'] = $_GET['waiting_id'];
}
//-------------------------------------------------------------- picture upload
// verfying fields
if ( isset( $_POST['submit'] ) and !isset( $_GET['waiting_id'] ) )
{
  $path = $page['cat_dir'].$_FILES['picture']['name'];
  if ( @is_file( $path ) )
  {
    array_push( $error, $lang['upload_file_exists'] );
  }
  // test de la pr<70>sence des champs obligatoires
  if ( empty($_FILES['picture']['name']))
  {
    array_push( $error, $lang['upload_filenotfound'] );
  }
  if ( !ereg( "([_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)+)",
             $_POST['mail_address'] ) )
  {
    array_push( $error, $lang['reg_err_mail_address'] );
  }
  if ( empty($_POST['username']) )
  {
    array_push( $error, $lang['upload_err_username'] );
  }
  
  $date_creation = '';
  if ( !empty($_POST['date_creation']) )
  {
    list( $day,$month,$year ) = explode( '/', $_POST['date_creation'] );
    // int checkdate ( int month, int day, int year)
    if (checkdate($month, $day, $year))
    {
      $date_creation = $year.'-'.$month.'-'.$day;
    }
    else
    {
      array_push( $error, $lang['err_date'] );
    }
  }
  // creation of the "infos" field :
  // <infos author="Pierrick LE GALL" comment="my comment"
  //        date_creation="2004-08-14" name="" />
  $xml_infos = '<infos';
  $xml_infos.= ' author="'.htmlspecialchars($_POST['author'],ENT_QUOTES).'"';
  $xml_infos.= ' comment="'.htmlspecialchars($_POST['comment'],ENT_QUOTES).'"';
  $xml_infos.= ' date_creation="'.$date_creation.'"';
  $xml_infos.= ' name="'.htmlspecialchars( $_POST['name'], ENT_QUOTES).'"';
  $xml_infos.= ' />';

  if ( !preg_match( '/^[a-zA-Z0-9-_.]+$/', $_FILES['picture']['name'] ) )
  {
    array_push( $error, $lang['update_wrong_dirname'] );
  }
  
  if ( sizeof( $error ) == 0 )
  {
    $result = validate_upload( $path, $conf['upload_maxfilesize'],
                               $conf['upload_maxwidth'],
                               $conf['upload_maxheight']  );
    for ( $j = 0; $j < sizeof( $result['error'] ); $j++ )
    {
      array_push( $error, $result['error'][$j] );
    }
  }

  if ( sizeof( $error ) == 0 )
  {
    $query = 'insert into '.WAITING_TABLE;
    $query.= ' (storage_category_id,file,username,mail_address,date,infos)';
    $query.= ' values ';
    $query.= '('.$page['cat'].",'".$_FILES['picture']['name']."'";
    $query.= ",'".htmlspecialchars( $_POST['username'], ENT_QUOTES)."'";
    $query.= ",'".$_POST['mail_address']."',".time().",'".$xml_infos."')";
    $query.= ';';
    pwg_query( $query );
    $page['waiting_id'] = mysql_insert_id();
  }
}

//------------------------------------------------------------ thumbnail upload
if ( isset( $_POST['submit'] ) and isset( $_GET['waiting_id'] ) )
{
  // upload of the thumbnail
  $query = 'select file';
  $query.= ' from '.WAITING_TABLE;
  $query.= ' where id = '.$_GET['waiting_id'];
  $query.= ';';
  $result= pwg_query( $query );
  $row = mysql_fetch_array( $result );
  $file = substr ( $row['file'], 0, strrpos ( $row['file'], ".") );
  $extension = get_extension( $_FILES['picture']['name'] );
  $path = $page['cat_dir'].'thumbnail/';
  $path.= $conf['prefix_thumbnail'].$file.'.'.$extension;
  $result = validate_upload( $path, $conf['upload_maxfilesize'],
                             $conf['upload_maxwidth_thumbnail'],
                             $conf['upload_maxheight_thumbnail']  );
  for ( $j = 0; $j < sizeof( $result['error'] ); $j++ )
  {
    array_push( $error, $result['error'][$j] );
  }
  if ( sizeof( $error ) == 0 )
  {
    $query = 'update '.WAITING_TABLE;
    $query.= " set tn_ext = '".$extension."'";
    $query.= ' where id = '.$_GET['waiting_id'];
    $query.= ';';
    pwg_query( $query );
    $page['upload_successful'] = true;
  }
}

//
// Start output of page
//
$title= $lang['upload_title'];
include(PHPWG_ROOT_PATH.'include/page_header.php');
$template->set_filenames(array('upload'=>'upload.tpl'));

$u_form = PHPWG_ROOT_PATH.'upload.php?cat='.$page['cat'];
if ( isset( $page['waiting_id'] ) )
{
$u_form.= '&amp;waiting_id='.$page['waiting_id'];
}

if ( isset( $page['waiting_id'] ) )
{
  $advise_title=$lang['upload_advise_thumbnail'].$_FILES['picture']['name'];
}
else
{
  $advise_title = $lang['upload_advise'];
  $advise_title.= get_cat_display_name($page['cat_name']);
}

$username = !empty($_POST['username'])?$_POST['username']:$user['username'];
$mail_address = !empty($_POST['mail_address'])?$_POST['mail_address']:@$user['mail_address'];
$name = !empty($_POST['name'])?$_POST['name']:'';
$author = !empty($_POST['author'])?$_POST['author']:'';
$date_creation = !empty($_POST['date_creation'])?$_POST['date_creation']:'';
$comment = !empty($_POST['comment'])?$_POST['comment']:'';

$template->assign_vars(array(
  'ADVISE_TITLE' => $advise_title,
  'NAME' => $username,
  'EMAIL' => $mail_address,
  'NAME_IMG' => $name,
  'AUTHOR_IMG' => $author,
  'DATE_IMG' => $date_creation,
  'COMMENT_IMG' => $comment,

  'L_TITLE' => $lang['upload_title'],
  'L_USERNAME' => $lang['upload_username'],
  'L_EMAIL' =>  $lang['mail_address'], 
  'L_NAME_IMG' =>  $lang['upload_name'], 
  'L_SUBMIT' =>  $lang['submit'],
  'L_AUTHOR' =>  $lang['upload_author'], 
  'L_CREATION_DATE' =>  $lang['upload_creation_date'], 
  'L_COMMENT' =>  $lang['comment'],
  'L_RETURN' =>  $lang['home'],
  'L_RETURN_HINT' =>  $lang['home_hint'],
  'L_UPLOAD_DONE' =>  $lang['upload_successful'],
  'L_MANDATORY' =>  $lang['mandatory'],
	
  'F_ACTION' => $u_form,

  'U_RETURN' => PHPWG_ROOT_PATH.'category.php?'.$_SERVER['QUERY_STRING']
  ));
  
if ( !$page['upload_successful'] )
{
  $template->assign_block_vars('upload_not_successful',array());
//-------------------------------------------------------------- errors display
if ( sizeof( $error ) != 0 )
{
  $template->assign_block_vars('upload_not_successful.errors',array());
  for ( $i = 0; $i < sizeof( $error ); $i++ )
  {
    $template->assign_block_vars('upload_not_successful.errors.error',array('ERROR'=>$error[$i]));
  }
}

//--------------------------------------------------------------------- advises
  if ( !empty($conf['upload_maxfilesize']) )
  {
    $content = $lang['upload_advise_filesize'];
    $content.= $conf['upload_maxfilesize'].' KB';
    $template->assign_block_vars('upload_not_successful.advise',array('ADVISE'=>$content));
  }

  if ( isset( $page['waiting_id'] ) )
  {
    if ( $conf['upload_maxwidth_thumbnail'] != '' )
    {
	  $content = $lang['upload_advise_width'];
      $content.= $conf['upload_maxwidth_thumbnail'].' px';
	  $template->assign_block_vars('upload_not_successful.advise',array('ADVISE'=>$content));
    }
    if ( $conf['upload_maxheight_thumbnail'] != '' )
    {
      $content = $lang['upload_advise_height'];
      $content.= $conf['upload_maxheight_thumbnail'].' px';
	  $template->assign_block_vars('upload_not_successful.advise',array('ADVISE'=>$content));
    }
  }
  else
  {
    if ( $conf['upload_maxwidth'] != '' )
    {
      $content = $lang['upload_advise_width'];
      $content.= $conf['upload_maxwidth'].' px';
	  $template->assign_block_vars('upload_not_successful.advise',array('ADVISE'=>$content));
    }
    if ( $conf['upload_maxheight'] != '' )
    {
      $content = $lang['upload_advise_height'];
      $content.= $conf['upload_maxheight'].' px';
	  $template->assign_block_vars('upload_not_successful.advise',array('ADVISE'=>$content));
    }
  }
  $template->assign_block_vars('upload_not_successful.advise',array('ADVISE'=>$lang['upload_advise_filetype']));
  
//----------------------------------------- optionnal username and mail address
  if ( !isset( $page['waiting_id'] ) )
  {
    $template->assign_block_vars('upload_not_successful.fields',array());
	$template->assign_block_vars('note',array());
  }
}
else
{
  $template->assign_block_vars('upload_successful',array());
}
//----------------------------------------------------------- html code display
$template->parse('upload');
include(PHPWG_ROOT_PATH.'include/page_tail.php');
?>