Maslosoft Staple API
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/**
* This software package is licensed under AGPL or Commercial license.
*
* @package maslosoft/staple
* @licence AGPL or Commercial
* @copyright Copyright (c) Piotr Masełkowski <pmaselkowski@gmail.com>
* @copyright Copyright (c) Maslosoft
* @link http://maslosoft.com/staple/
*/
namespace Maslosoft\Staple\Renderers;
use Maslosoft\Staple\Exceptions\NotFoundException;
use Maslosoft\Staple\Interfaces\RendererExtensionInterface;
use Maslosoft\Staple\Interfaces\RendererInterface;
use Maslosoft\Staple\Interfaces\VirtualInterface;
use PHPThumb\GD;
use SplFileInfo;
/**
* ThumbRenderer
* TODO: Create image thumbs out of an image.
* 1. Should use extensions like: thumb.jpg, thumb.png
* 3. Should create a thumb with predefined or requested size and cache it in browser
* 4. Should be implemented somewhat similar to PassThroughRenderer
* @author Piotr Maselkowski <pmaselkowski at gmail.com>
*/
class ThumbRenderer extends AbstractRenderer implements RendererInterface, RendererExtensionInterface, VirtualInterface
{
const OptionCrop = 'c';
private $extension = '';
public $width = 300;
public $height = 200;
public $options = [];
public function render($view = 'index', $data = array())
{
$view = urldecode($view);
$contentPath = $this->getOwner()->getContentPath();
$rootPath = $this->getOwner()->getRootPath();
$matches = [];
if (preg_match('~@\((\d+)x(\d+)\)([a-z]{1})?$~', $view, $matches))
{
$this->width = $matches[1];
$this->height = $matches[2];
if (isset($matches[3]))
{
$this->options = preg_split('~~', $matches[3], PREG_SPLIT_NO_EMPTY);
}
$pattern = preg_quote($matches[0]);
$baseView = preg_replace("~$pattern$~", '', $view);
}
$thumbName = sprintf('%s/%s.%s', $rootPath, $view, $this->extension);
// Get thumbnail dir for later use
$thumbDir = dirname($thumbName);
// Try to make a thumbnail dir
if (!file_exists($thumbDir))
{
@mkdir($thumbDir, 0777, true);
}
$baseExt = str_replace('thumb.', '', $this->extension);
$fileName = sprintf('%s/%s.%s', $contentPath, $baseView, $baseExt);
if (!file_exists($fileName))
{
throw new NotFoundException(sprintf('File not found: `%s`', $fileName));
}
if (!file_exists($thumbName))
{
$image = new GD($fileName);
if (in_array(self::OptionCrop, $this->options))
{
$image->adaptiveResize($this->width, $this->height);
}
else
{
$image->resize($this->width, $this->height);
}
// ensure we can write into dir or overwrite a file
if (is_writeable($thumbDir) || is_writeable($thumbName))
{
$image->save($thumbName);
}
}
$info = new SplFileInfo($thumbName);
$size = $info->getSize();
if ($size > 0)
{
header(sprintf('Content-Length: %d', $size));
}
switch (strtolower($info->getExtension()))
{
case 'gif':
header('Content-type: image/gif');
break;
case 'jpg':
header('Content-type: image/jpeg');
break;
case 'png':
case 'string':
header('Content-type: image/png');
break;
}
header(sprintf('ETag: %s', md5($thumbName)));
header(sprintf('Last-Modified: %s', gmdate('D, d M Y H:i:s \G\M\T', $info->getMTime())));
header(sprintf('Content-Disposition: filename="%s"', basename($fileName)));
// Cache it
header('Pragma: public');
header('Cache-Control: max-age=86400');
header('Expires: ' . gmdate('D, d M Y H:i:s \G\M\T', time() + 86400));
echo file_get_contents($thumbName);
exit();
}
public function setExtension($extension)
{
$this->extension = $extension;
}
}
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