2017-05-02 15:04:55 +00:00
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<?php
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/**
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* PlaylistArchiveStream class.
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*/
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namespace Alltube;
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use Barracuda\ArchiveStream\TarArchive;
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2018-02-05 15:48:58 +00:00
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use GuzzleHttp\Client;
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2019-04-20 22:34:12 +00:00
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use Psr\Http\Message\StreamInterface;
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use RuntimeException;
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use stdClass;
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2017-05-02 15:04:55 +00:00
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/**
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* Class used to create a Tar archive from playlists and stream it to the browser.
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*
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2019-04-20 22:34:12 +00:00
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* @link https://github.com/php-fig/http-message/blob/master/src/StreamInterface.php
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2017-05-02 15:04:55 +00:00
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*/
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2019-04-20 22:34:12 +00:00
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class PlaylistArchiveStream extends TarArchive implements StreamInterface
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2017-05-02 15:04:55 +00:00
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{
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/**
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2019-04-20 22:56:12 +00:00
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* videos to add in the archive.
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2017-05-02 15:04:55 +00:00
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*
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2019-04-20 22:56:12 +00:00
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* @var PlaylistArchiveVideo[]
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2017-05-02 15:04:55 +00:00
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*/
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2019-04-20 22:56:12 +00:00
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private $videos = [];
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2017-05-02 15:04:55 +00:00
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/**
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* Stream used to store data before it is sent to the browser.
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*
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* @var resource
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*/
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private $buffer;
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/**
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* Guzzle client.
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*
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2018-02-05 15:48:58 +00:00
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* @var Client
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2017-05-02 15:04:55 +00:00
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*/
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private $client;
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/**
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* VideoDownload instance.
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*
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* @var VideoDownload
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*/
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private $download;
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/**
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2019-04-20 22:56:12 +00:00
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* Current video being streamed to the archive.
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2017-05-02 15:04:55 +00:00
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*
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* @var int
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*/
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2019-04-20 22:56:12 +00:00
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private $curVideo;
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2017-05-02 15:04:55 +00:00
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/**
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* Video format to download.
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*
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* @var string
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*/
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private $format;
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/**
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* PlaylistArchiveStream constructor.
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2017-12-24 00:12:47 +00:00
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*
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* @param Config $config Config instance.
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* @param stdClass $video Video object returned by youtube-dl
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* @param string $format Requested format
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2017-05-02 15:04:55 +00:00
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*/
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public function __construct(Config $config, stdClass $video, $format)
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{
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2018-02-05 15:48:58 +00:00
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$this->client = new Client();
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2017-11-11 12:58:55 +00:00
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$this->download = new VideoDownload($config);
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$this->format = $format;
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$buffer = fopen('php://temp', 'r+');
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if ($buffer !== false) {
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$this->buffer = $buffer;
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}
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foreach ($video->entries as $entry) {
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2019-04-20 22:56:12 +00:00
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$this->videos[] = new PlaylistArchiveVideo($entry->url);
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}
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2017-05-02 15:04:55 +00:00
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}
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/**
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* Add data to the archive.
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*
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2017-05-04 22:06:18 +00:00
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* @param string $data Data
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2017-05-02 15:04:55 +00:00
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*
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* @return void
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*/
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protected function send($data)
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{
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$pos = ftell($this->buffer);
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2019-04-19 23:19:55 +00:00
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// Add data to the buffer.
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2017-05-02 15:04:55 +00:00
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fwrite($this->buffer, $data);
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2017-12-05 14:49:13 +00:00
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if ($pos !== false) {
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2019-04-20 22:34:12 +00:00
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// Rewind so that read() can later read this data.
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2017-12-05 14:49:13 +00:00
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fseek($this->buffer, $pos);
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}
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2017-05-02 15:04:55 +00:00
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}
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/**
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* Write data to the stream.
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2017-05-02 15:04:55 +00:00
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*
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* @param string $string The string that is to be written.
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2017-05-02 15:04:55 +00:00
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*
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* @return int
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2017-05-02 15:04:55 +00:00
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*/
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public function write($string)
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2017-05-02 15:04:55 +00:00
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{
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throw new RuntimeException('This stream is not writeable.');
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}
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2017-05-02 15:04:55 +00:00
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2019-04-20 22:34:12 +00:00
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/**
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* Get the size of the stream if known.
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*
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* @return null
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*/
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public function getSize()
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{
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}
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/**
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* Returns whether or not the stream is seekable.
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*
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2019-04-20 22:58:04 +00:00
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* @return bool
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2019-04-20 22:34:12 +00:00
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*/
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public function isSeekable()
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{
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return false;
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}
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/**
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* Seek to the beginning of the stream.
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*
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* @return void
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*/
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public function rewind()
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{
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throw new RuntimeException('This stream is not seekable.');
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}
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/**
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* Returns whether or not the stream is writable.
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*
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* @return bool
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2019-04-20 22:34:12 +00:00
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*/
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public function isWritable()
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{
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return false;
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}
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/**
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* Returns whether or not the stream is readable.
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*
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* @return bool
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2019-04-20 22:34:12 +00:00
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*/
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public function isReadable()
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{
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2017-05-02 15:04:55 +00:00
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return true;
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}
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/**
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2019-04-20 22:34:12 +00:00
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* Returns the remaining contents in a string.
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2017-05-02 15:04:55 +00:00
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*
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2019-04-20 22:34:12 +00:00
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* @return string
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*/
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public function getContents()
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{
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return stream_get_contents($this->buffer);
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}
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/**
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* Get stream metadata as an associative array or retrieve a specific key.
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*
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* @param string $key string $key Specific metadata to retrieve.
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*
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* @return null
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2017-05-02 15:04:55 +00:00
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*/
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public function getMetadata($key = null)
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2017-05-02 15:04:55 +00:00
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{
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}
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/**
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2019-04-20 22:34:12 +00:00
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* Separates any underlying resources from the stream.
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2017-05-02 15:04:55 +00:00
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*
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2019-04-20 22:34:12 +00:00
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* @return resource
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2017-05-02 15:04:55 +00:00
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*/
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2019-04-20 22:34:12 +00:00
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public function detach()
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2017-05-02 15:04:55 +00:00
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{
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2019-04-20 22:34:12 +00:00
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$stream = $this->buffer;
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$this->close();
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2019-04-20 22:58:04 +00:00
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2019-04-20 22:34:12 +00:00
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return $stream;
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2017-05-02 15:04:55 +00:00
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}
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/**
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2019-04-20 22:34:12 +00:00
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* Reads all data from the stream into a string, from the beginning to end.
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*
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* @return string
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*/
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public function __toString()
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{
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$string = '';
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2019-04-20 22:56:12 +00:00
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foreach ($this->videos as $file) {
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$string .= $file->url;
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2019-04-20 22:34:12 +00:00
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}
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return $string;
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}
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/**
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2019-04-20 22:58:04 +00:00
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* Returns the current position of the file read/write pointer.
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2017-05-02 15:04:55 +00:00
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*
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2017-12-05 14:49:13 +00:00
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* @return int|false
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2017-05-02 15:04:55 +00:00
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*/
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2019-04-20 22:34:12 +00:00
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public function tell()
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2017-05-02 15:04:55 +00:00
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{
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return ftell($this->buffer);
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}
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/**
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2019-04-20 22:34:12 +00:00
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* Seek to a position in the stream.
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2017-05-02 15:04:55 +00:00
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*
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* @param int $offset Offset
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2019-04-20 22:34:12 +00:00
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* @param int $whence Specifies how the cursor position will be calculated
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2017-05-02 15:04:55 +00:00
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*
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* @return void
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2017-05-02 15:04:55 +00:00
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*/
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2019-04-20 22:34:12 +00:00
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public function seek($offset, $whence = SEEK_SET)
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2017-05-02 15:04:55 +00:00
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{
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2019-04-20 22:34:12 +00:00
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throw new RuntimeException('This stream is not seekable.');
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2017-05-02 15:04:55 +00:00
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}
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/**
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2019-04-20 22:34:12 +00:00
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* Returns true if the stream is at the end of the stream.
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2017-05-02 15:04:55 +00:00
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*
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* @return bool
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*/
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2019-04-20 22:34:12 +00:00
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public function eof()
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{
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2019-04-20 22:56:12 +00:00
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foreach ($this->videos as $file) {
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if (!$file->complete) {
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2017-05-02 15:04:55 +00:00
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return false;
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}
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}
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return true;
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}
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/**
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2019-04-20 22:34:12 +00:00
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* Read data from the stream.
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2017-05-02 15:04:55 +00:00
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*
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* @param int $count Number of bytes to read
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*
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2017-12-05 14:49:13 +00:00
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* @return string|false
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2017-05-02 15:04:55 +00:00
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*/
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2019-04-20 22:34:12 +00:00
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public function read($count)
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2017-05-02 15:04:55 +00:00
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{
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2019-04-20 22:56:12 +00:00
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if (isset($this->curVideo)) {
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if (isset($this->curVideo->stream)) {
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if (!$this->curVideo->stream->eof()) {
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$this->stream_file_part($this->curVideo->stream->read($count));
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} elseif (!$this->curVideo->complete) {
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$this->complete_file_stream();
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$this->curVideo->complete = true;
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} else {
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$this->curVideo = next($this->videos);
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}
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} else {
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$urls = $this->download->getURL($this->curVideo->url, $this->format);
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$response = $this->client->request('GET', $urls[0], ['stream' => true]);
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$contentLengthHeaders = $response->getHeader('Content-Length');
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$this->init_file_stream_transfer(
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$this->download->getFilename($this->curVideo->url, $this->format),
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$contentLengthHeaders[0]
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);
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$this->curVideo->stream = $response->getBody();
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}
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} else {
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$this->curVideo = current($this->videos);
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2017-05-02 15:04:55 +00:00
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}
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return fread($this->buffer, $count);
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}
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2019-04-19 22:37:49 +00:00
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/**
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2019-04-20 22:34:12 +00:00
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* Closes the stream and any underlying resources.
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2019-04-19 22:37:49 +00:00
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*
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* @return void
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*/
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2019-04-20 22:34:12 +00:00
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public function close()
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{
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if (is_resource($this->buffer)) {
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fclose($this->buffer);
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}
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2019-04-20 22:56:12 +00:00
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foreach ($this->videos as $file) {
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if (is_resource($file->stream)) {
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fclose($file->stream);
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2019-04-20 22:34:12 +00:00
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}
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}
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}
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2017-05-02 15:04:55 +00:00
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}
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