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<?php
/***************************************************************************
* functions_thumbs.php
* -------------------
* begin : Sat, Jul 27, 2002
* copyright : (C) 2002 Meik Sievertsen
* email : acyd.burn@gmx.de
*
* $Id: functions_thumbs.php,v 1.28 2005/04/16 10:07:26 acydburn Exp $
*
*
***************************************************************************/
/***************************************************************************
*
* 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.
*
*
***************************************************************************/
//
// All Attachment Functions needed to create Thumbnails
//
if ( !defined('IN_PHPBB') )
{
die('Hacking attempt');
exit;
}
$imagick = '';
//
// Calculate the needed size for Thumbnail
//
function get_img_size_format($width, $height)
{
// Maximum Width the Image can take
$max_width = 400;
if ($width > $height)
{
return array(
round($width * ($max_width / $width)),
round($height * ($max_width / $width))
);
}
else
{
return array(
round($width * ($max_width / $height)),
round($height * ($max_width / $height))
);
}
}
//
// Check if imagick is present
//
function is_imagick()
{
global $imagick, $attach_config;
if ($attach_config['img_imagick'] != '')
{
$imagick = $attach_config['img_imagick'];
return true;
}
else
{
return false;
}
}
function get_supported_image_types($type)
{
if (@extension_loaded('gd'))
{
$format = imagetypes();
$new_type = 0;
switch ($type)
{
case 1:
$new_type = ($format & IMG_GIF) ? IMG_GIF : 0;
break;
case 2:
case 9:
case 10:
case 11:
case 12:
$new_type = ($format & IMG_JPG) ? IMG_JPG : 0;
break;
case 3:
$new_type = ($format & IMG_PNG) ? IMG_PNG : 0;
break;
case 6:
case 15:
$new_type = ($format & IMG_WBMP) ? IMG_WBMP : 0;
break;
}
return array(
'gd' => ($new_type) ? true : false,
'format' => $new_type,
'version' => (function_exists('imagecreatetruecolor')) ? 2 : 1
);
}
return array('gd' => false);
}
function create_thumbnail($source, $new_file, $mimetype)
{
global $attach_config, $imagick;
$source = amod_realpath($source);
$source = realpath($source);
$min_filesize = (int) $attach_config['img_min_thumb_filesize'];
$img_filesize = (@file_exists($source)) ? @filesize($source) : false;
if (!$img_filesize || $img_filesize <= $min_filesize)
{
return false;
}
list($width, $height, $type, ) = getimagesize($source);
if (!$width || !$height)
{
return false;
}
list($new_width, $new_height) = get_img_size_format($width, $height);
$tmp_path = '';
$old_file = '';
if (intval($attach_config['allow_ftp_upload']))
{
$old_file = $new_file;
$tmp_path = explode('/', $source);
$tmp_path[count($tmp_path)-1] = '';
$tmp_path = implode('/', $tmp_path);
if ($tmp_path == '')
{
$tmp_path = '/tmp';
}
$value = trim($tmp_path);
if ($value[strlen($value)-1] == '/')
{
$value[strlen($value)-1] = ' ';
}
$new_file = trim($value) . '/t00000';
}
$used_imagick = false;
if (is_imagick())
{
passthru($imagick . ' -quality 85 -antialias -sample ' . $new_width . 'x' . $new_height . ' "' . str_replace('\\', '/', $source) . '" +profile "*" "' . str_replace('\\', '/', $new_file) . '"');
if (@file_exists($new_file))
{
$used_imagick = true;
}
}
if (!$used_imagick)
{
$type = get_supported_image_types($type);
if ($type['gd'])
{
switch ($type['format'])
{
case IMG_GIF:
$image = imagecreatefromgif($source);
break;
case IMG_JPG:
$image = imagecreatefromjpeg($source);
break;
case IMG_PNG:
$image = imagecreatefrompng($source);
break;
case IMG_WBMP:
$image = imagecreatefromwbmp($source);
break;
}
if ($type['version'] == 1 || !$attach_config['use_gd2'])
{
$new_image = imagecreate($new_width, $new_height);
imagecopyresized($new_image, $image, 0, 0, 0, 0, $new_width, $new_height, $width, $height);
}
else
{
$new_image = imagecreatetruecolor($new_width, $new_height);
imagecopyresampled($new_image, $image, 0, 0, 0, 0, $new_width, $new_height, $width, $height);
}
switch ($type['format'])
{
case IMG_GIF:
imagegif($new_image, $new_file);
break;
case IMG_JPG:
imagejpeg($new_image, $new_file, 90);
break;
case IMG_PNG:
imagepng($new_image, $new_file);
break;
case IMG_WBMP:
imagewbmp($new_image, $new_file);
break;
}
imagedestroy($new_image);
}
}
if (!@file_exists($new_file))
{
return false;
}
if (intval($attach_config['allow_ftp_upload']))
{
$result = ftp_file($new_file, $old_file, $mimetype, true); // True for disable error-mode
if (!$result)
{
return false;
}
}
else
{
@chmod($new_file, 0664);
}
return true;
}
?>
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