Nemcio/AutoIndex-pl4
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Update copyright and add PDF to JPG conversion methods

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Florin-Ciprian Bodin
2025-12-01 06:31:57 +02:00
committed by GitHub
parent e77bac59ac
commit b9ab8db8ea
1 changed files with 78 additions and 5 deletions
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83
classes/Image.php
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@@ -2,7 +2,7 @@
/**
* @package AutoIndex
*
* @copyright Copyright (C) 2002-2004 Justin Hagstrom, 2019-2023 Florin C Bodin aka orynider at github.com
* @copyright Copyright (C) 2002-2004 Justin Hagstrom, 2008-2025 Florin C Bodin aka orynider at github.com
* @license http://www.gnu.org/licenses/gpl.html GNU General Public License (GPL)
*
* @link http://autoindex.sourceforge.net
@@ -88,6 +88,51 @@ class Image
}
}
/**
* Convert passed image data, which is assumed to be PDF, to JPG.
*
* @param string $file PDF image data
* @return string|bool JPG image data, or false on failure
*/
protected function directcreatefrompdf($file)
{
// Source - https://stackoverflow.com/a/27381357
// Posted by user4341845, modified by community. See post 'Timeline' for change history
// Retrieved 2025-12-01, License - CC BY-SA 3.0
$img = new imagick();
//this must be called before reading the image, otherwise has no effect
$img->setResolution(195, 195);
//read the pdf
$img->readImage("{$file}[0]");
$img->setImageFormat('jpg');
@header('Content-Type: image/jpeg');
//echo $img;
//exit;
die($img);
}
/**
* Convert passed image data, which is assumed to be PDF, to JPG.
* by carestad at github.com
* @param string $file PDF image data
* @return string|bool JPG image data, or false on failure
*/
protected function imagecreatefrompdf($file)
{
$im = new \Imagick("{$file}[0]");
$im->setIteratorIndex(0); // just use first page
$im->setImageAlphaChannel(\Imagick::VIRTUALPIXELMETHOD_WHITE); // Other alpha options are available, see Imagick PHP documentation
$im->setImageColorspace(\Imagick::COLORSPACE_SRGB); // Other colorspaces are available, see Imagick PHP documentation
$im->setImageBackgroundColor('white'); // Set transparent background elements to this color
$im->setImageFormat('jpg');
$im->setFormat('JPG'); // Format, a wide variety is supported
$im->scaleImage(295, 295, true); // WxH + force aspect (true/false)
@header('Content-Type: image/jpeg');
//echo $img;
//exit;
//file_put_contents(str_replace(FileItem::ext($file), 'jpg', $file), (string) $im);
die($im);
}
/**
* Convert passed image data, which is assumed to be SVG, to PNG.
*
@@ -234,6 +279,7 @@ class Image
$file = $this->filename;
$file_icon = new Icon($file);
$this->icon = $file_icon->__toString();
if (!@is_file($file))
{
header('HTTP/1.0 404 Not Found');
@@ -288,16 +334,43 @@ class Image
}
case 'wmv' :
{
ini_set('memory_limit', '512M');
@ini_set('memory_limit', '512M');
$src = function_exists('imagecreatefromwmv') ? imagecreatefromwmv($file) : imagecreatefromjpeg(str_replace('wmv', 'jpg', $file));
break;
}
case 'pdf':
{
if (@extension_loaded('imagick') || @class_exists("Imagick") )
{
$src = $this->imagecreatefrompdf($file);
}
else
{
$file_icon = new Icon($filename);
$thumb = $file_icon->__toString();
$src = @imagecreatefromjpeg($thumb);
}
break;
}
case 'avi':
case 'divx':
case 'xvid':
{
ini_set('memory_limit', '512M');
$src = function_exists($function) ? imagecreatefromavi($file) : imagecreatefromjpeg(str_replace(FileItem::ext($file), 'jpg', $file));
@ini_set('memory_limit', '512M');
// Source - https://stackoverflow.com/a/34384876
// Posted by user5670408, modified by community. See post 'Timeline' for change history
// Retrieved 2025-12-01, License - CC BY-SA 3.0
$thumb = str_replace(FileItem::ext($file), 'jpg', $file);
if (@is_file($thumb))
{
$src = @imagecreatefromjpeg($thumb);
}
else
{
$file_icon = new Icon($filename);
$thumb = $file_icon->__toString();
$src = @imagecreatefromjpeg($thumb);
}
break;
}
case 'mp4':
@@ -407,7 +480,7 @@ class Image
$src_height = imagesy($src);
if ($src_height <= $thumbnail_height)
{
imagejpeg($src, '', 95);
imagejpeg($src, $file, 95);
}
else
{