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<?php |
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namespace Jackal\Downloader\Downloader; |
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use Jackal\Downloader\Exception\DownloadException; |
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use Jackal\Downloader\Utils\DownloaderUtil; |
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use Symfony\Component\OptionsResolver\OptionsResolver; |
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abstract class AbstractDownloader implements DownloaderInterface |
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{ |
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/** |
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* @var string |
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*/ |
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protected $tempFilePathName; |
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/** |
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* @var array |
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*/ |
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protected $options = []; |
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/** |
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* AbstractDownloader constructor. |
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* @param string $id |
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* @param array $config |
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*/ |
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public function __construct($id, array $config = []) |
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{ |
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$options = new OptionsResolver(); |
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$options->setDefaults(array_merge($config, [ |
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'force' => false, |
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'video_id' => $id, |
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'overwrite' => false, |
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])); |
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$options->setAllowedTypes('force', 'bool'); |
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$options->setAllowedTypes('overwrite', 'bool'); |
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$options->setAllowedTypes('video_id', ['string','integer']); |
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$this->options = $options->resolve($config); |
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} |
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/** |
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* @return bool |
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*/ |
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protected function forceDownload() : bool |
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{ |
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return $this->options['force'] == true; |
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} |
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/** |
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* @return bool |
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*/ |
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protected function forceOverwriteFile() : bool |
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{ |
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return $this->options['overwrite'] == true; |
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} |
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/** |
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* @return array |
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*/ |
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public function getOptions(): array |
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{ |
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return $this->options; |
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} |
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/** |
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* @return string |
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*/ |
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protected function getVideoId() : string |
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{ |
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return $this->options['video_id']; |
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} |
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/** |
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* @return array |
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*/ |
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protected function getFormats() : array |
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{ |
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if(!isset($this->options['format'])){ |
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return []; |
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} |
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if(is_scalar($this->options['format'])){ |
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return [$this->options['format']]; |
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} |
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return $this->options['format']; |
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} |
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protected function filterByFormats(array $possibleResults) : array{ |
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if($this->getFormats() != []) { |
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foreach ($this->getFormats() as $selectedFormat) { |
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if (isset($possibleResults[$selectedFormat])) { |
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return [$selectedFormat => $possibleResults[$selectedFormat]]; |
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} |
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} |
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throw DownloadException::formatNotFound($this->getFormats(), $possibleResults); |
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} |
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return $possibleResults; |
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} |
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/** |
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* @param string $destinationFile |
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* @param callable|null $callback |
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* @throws DownloadException |
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*/ |
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public function download(string $destinationFile, callable $callback = null) : void |
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{ |
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if (file_exists($destinationFile) and !$this->forceOverwriteFile()) { |
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throw DownloadException::destinationFileAlreadyExists($destinationFile); |
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} |
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if (!is_dir(dirname($destinationFile))) { |
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if (!mkdir(dirname($destinationFile), 0777, true)) { |
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throw DownloadException::cannotCreateDirectory(dirname($destinationFile)); |
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} |
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} |
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$this->tempFilePathName = $destinationFile . '.temp'; |
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if (file_exists($this->tempFilePathName) and !$this->forceDownload()) { |
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throw DownloadException::tempFileAlreadyExists($this->tempFilePathName); |
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} |
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DownloaderUtil::downloadURL($this->getURL(), $this->tempFilePathName, $callback); |
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rename($this->tempFilePathName, $destinationFile); |
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} |
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public function __destruct() |
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{ |
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if (is_file($this->tempFilePathName)) { |
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unlink($this->tempFilePathName); |
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} |
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} |
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} |
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lucajackal85 /
VideoDownloader
