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Created PreviewGenerator module

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This commit is contained in:
Alejandro Celaya
2019-08-11 19:38:46 +02:00
parent 1fd677df5a
commit 47ea4218d0
21 changed files with 95 additions and 32 deletions
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13
module/Common/src/Image/ImageBuilder.php
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<?php
declare(strict_types=1);
namespace Shlinkio\Shlink\Common\Image;
use mikehaertl\wkhtmlto\Image;
use Zend\ServiceManager\AbstractPluginManager;
/** @deprecated */
class ImageBuilder extends AbstractPluginManager implements ImageBuilderInterface
{
protected $instanceOf = Image::class;
}

34
module/Common/src/Image/ImageBuilderFactory.php
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<?php
declare(strict_types=1);
namespace Shlinkio\Shlink\Common\Image;
use Interop\Container\ContainerInterface;
use Interop\Container\Exception\ContainerException;
use mikehaertl\wkhtmlto\Image;
use Zend\ServiceManager\Exception\ServiceNotCreatedException;
use Zend\ServiceManager\Exception\ServiceNotFoundException;
use Zend\ServiceManager\Factory\FactoryInterface;
/** @deprecated */
class ImageBuilderFactory implements FactoryInterface
{
/**
* Create an object
*
* @param ContainerInterface $container
* @param string $requestedName
* @param null|array $options
* @return object
* @throws ServiceNotFoundException if unable to resolve the service.
* @throws ServiceNotCreatedException if an exception is raised when
* creating a service.
* @throws ContainerException if any other error occurs
*/
public function __invoke(ContainerInterface $container, $requestedName, ?array $options = null)
{
return new ImageBuilder($container, ['factories' => [
Image::class => ImageFactory::class,
]]);
}
}

11
module/Common/src/Image/ImageBuilderInterface.php
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<?php
declare(strict_types=1);
namespace Shlinkio\Shlink\Common\Image;
use Zend\ServiceManager\ServiceLocatorInterface;
/** @deprecated */
interface ImageBuilderInterface extends ServiceLocatorInterface
{
}

39
module/Common/src/Image/ImageFactory.php
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<?php
declare(strict_types=1);
namespace Shlinkio\Shlink\Common\Image;
use Interop\Container\ContainerInterface;
use Interop\Container\Exception\ContainerException;
use mikehaertl\wkhtmlto\Image;
use Zend\ServiceManager\Exception\ServiceNotCreatedException;
use Zend\ServiceManager\Exception\ServiceNotFoundException;
use Zend\ServiceManager\Factory\FactoryInterface;
/** @deprecated */
class ImageFactory implements FactoryInterface
{
/**
* Create an object
*
* @param ContainerInterface $container
* @param string $requestedName
* @param null|array $options
* @return object
* @throws ServiceNotFoundException if unable to resolve the service.
* @throws ServiceNotCreatedException if an exception is raised when
* creating a service.
* @throws ContainerException if any other error occurs
*/
public function __invoke(ContainerInterface $container, $requestedName, ?array $options = null)
{
$config = $container->get('config')['wkhtmltopdf'];
$image = new Image($config['images'] ?? null);
if ($options['url'] ?? null) {
$image->setPage($options['url']);
}
return $image;
}
}

57
module/Common/src/Service/PreviewGenerator.php
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<?php
declare(strict_types=1);
namespace Shlinkio\Shlink\Common\Service;
use mikehaertl\wkhtmlto\Image;
use Shlinkio\Shlink\Common\Exception\PreviewGenerationException;
use Shlinkio\Shlink\Common\Image\ImageBuilderInterface;
use Symfony\Component\Filesystem\Filesystem;
use function sprintf;
use function urlencode;
/** @deprecated */
class PreviewGenerator implements PreviewGeneratorInterface
{
/** @var string */
private $location;
/** @var ImageBuilderInterface */
private $imageBuilder;
/** @var Filesystem */
private $filesystem;
public function __construct(ImageBuilderInterface $imageBuilder, Filesystem $filesystem, string $location)
{
$this->location = $location;
$this->imageBuilder = $imageBuilder;
$this->filesystem = $filesystem;
}
/**
* Generates and stores preview for provided website and returns the path to the image file
*
* @throws PreviewGenerationException
*/
public function generatePreview(string $url): string
{
$image = $this->imageBuilder->build(Image::class, ['url' => $url]);
// If the file already exists, return its path
$cacheId = sprintf('preview_%s.%s', urlencode($url), $image->type);
$path = $this->location . '/' . $cacheId;
if ($this->filesystem->exists($path)) {
return $path;
}
// Save and check if an error occurred
$image->saveAs($path);
$error = $image->getError();
if (! empty($error)) {
throw PreviewGenerationException::fromImageError($error);
}
// Cache the path and return it
return $path;
}
}

17
module/Common/src/Service/PreviewGeneratorInterface.php
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<?php
declare(strict_types=1);
namespace Shlinkio\Shlink\Common\Service;
use Shlinkio\Shlink\Common\Exception\PreviewGenerationException;
/** @deprecated */
interface PreviewGeneratorInterface
{
/**
* Generates and stores preview for provided website and returns the path to the image file
*
* @throws PreviewGenerationException
*/
public function generatePreview(string $url): string;
}