289 lines
10 KiB
PHP
289 lines
10 KiB
PHP
<?php
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/**
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* DownloadController class.
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*/
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namespace Alltube\Controller;
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use Alltube\Exception\EmptyUrlException;
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use Alltube\Exception\PasswordException;
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use Alltube\Stream\ConvertedPlaylistArchiveStream;
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use Alltube\Stream\PlaylistArchiveStream;
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use Alltube\Stream\YoutubeStream;
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use Alltube\Video;
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use Exception;
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use Slim\Http\Request;
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use Slim\Http\Response;
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use Slim\Http\Stream;
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/**
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* Controller that returns a video or audio file.
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*/
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class DownloadController extends BaseController
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{
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/**
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* Redirect to video file.
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*
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* @param Request $request PSR-7 request
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* @param Response $response PSR-7 response
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*
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* @return Response HTTP response
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*/
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public function download(Request $request, Response $response)
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{
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$url = $request->getQueryParam('url');
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if (isset($url)) {
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$this->video = new Video($url, $this->getFormat($request), $this->getPassword($request));
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try {
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if ($this->config->convert && $request->getQueryParam('audio')) {
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// Audio convert.
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return $this->getAudioResponse($request, $response);
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} elseif ($this->config->convertAdvanced && !is_null($request->getQueryParam('customConvert'))) {
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// Advance convert.
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return $this->getConvertedResponse($request, $response);
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}
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// Regular download.
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return $this->getDownloadResponse($request, $response);
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} catch (PasswordException $e) {
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return $response->withRedirect(
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$this->container->get('router')->pathFor('info') .
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'?' . http_build_query($request->getQueryParams())
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);
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} catch (Exception $e) {
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$response->getBody()->write($e->getMessage());
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return $response->withHeader('Content-Type', 'text/plain')->withStatus(500);
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}
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} else {
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return $response->withRedirect($this->container->get('router')->pathFor('index'));
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}
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}
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/**
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* Return a converted MP3 file.
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*
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* @param Request $request PSR-7 request
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* @param Response $response PSR-7 response
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*
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* @return Response HTTP response
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*/
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private function getConvertedAudioResponse(Request $request, Response $response)
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{
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$from = $request->getQueryParam('from');
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$to = $request->getQueryParam('to');
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$response = $response->withHeader(
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'Content-Disposition',
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'attachment; filename="' .
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$this->video->getFileNameWithExtension('mp3') . '"'
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);
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$response = $response->withHeader('Content-Type', 'audio/mpeg');
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if ($request->isGet() || $request->isPost()) {
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try {
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$process = $this->video->getAudioStream($from, $to);
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} catch (Exception $e) {
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// Fallback to default format.
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$this->video = $this->video->withFormat($this->defaultFormat);
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$process = $this->video->getAudioStream($from, $to);
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}
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$response = $response->withBody(new Stream($process));
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}
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return $response;
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}
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/**
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* Return the MP3 file.
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*
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* @param Request $request PSR-7 request
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* @param Response $response PSR-7 response
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*
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* @return Response HTTP response
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*/
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private function getAudioResponse(Request $request, Response $response)
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{
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try {
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// First, we try to get a MP3 file directly.
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if (!empty($request->getQueryParam('from')) || !empty($request->getQueryParam('to'))) {
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throw new Exception('Force convert when we need to seek.');
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}
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if ($this->config->stream) {
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$this->video = $this->video->withFormat('mp3');
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return $this->getStream($request, $response);
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} else {
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$this->video = $this->video->withFormat('mp3[protocol=https]/mp3[protocol=http]');
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$urls = $this->video->getUrl();
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return $response->withRedirect($urls[0]);
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}
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} catch (PasswordException $e) {
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$frontController = new FrontController($this->container);
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return $frontController->password($request, $response);
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} catch (Exception $e) {
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// If MP3 is not available, we convert it.
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$this->video = $this->video->withFormat('bestaudio');
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return $this->getConvertedAudioResponse($request, $response);
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}
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}
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/**
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* Get a video/audio stream piped through the server.
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*
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* @param Response $response PSR-7 response
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* @param Request $request PSR-7 request
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*
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* @return Response HTTP response
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*/
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private function getStream(Request $request, Response $response)
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{
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if (isset($this->video->entries)) {
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if ($this->config->convert && $request->getQueryParam('audio')) {
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$stream = new ConvertedPlaylistArchiveStream($this->video);
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} else {
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$stream = new PlaylistArchiveStream($this->video);
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}
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$response = $response->withHeader('Content-Type', 'application/zip');
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$response = $response->withHeader(
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'Content-Disposition',
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'attachment; filename="' . $this->video->title . '.zip"'
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);
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return $response->withBody($stream);
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} elseif ($this->video->protocol == 'rtmp') {
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$response = $response->withHeader('Content-Type', 'video/' . $this->video->ext);
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$body = new Stream($this->video->getRtmpStream());
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} elseif ($this->video->protocol == 'm3u8' || $this->video->protocol == 'm3u8_native') {
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$response = $response->withHeader('Content-Type', 'video/' . $this->video->ext);
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$body = new Stream($this->video->getM3uStream());
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} else {
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$headers = [];
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$range = $request->getHeader('Range');
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if (!empty($range)) {
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$headers['Range'] = $range;
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}
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$stream = $this->video->getHttpResponse($headers);
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$response = $response->withHeader('Content-Type', $stream->getHeader('Content-Type'));
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$response = $response->withHeader('Content-Length', $stream->getHeader('Content-Length'));
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$response = $response->withHeader('Accept-Ranges', $stream->getHeader('Accept-Ranges'));
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$response = $response->withHeader('Content-Range', $stream->getHeader('Content-Range'));
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if ($stream->getStatusCode() == 206) {
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$response = $response->withStatus(206);
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}
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if (isset($this->video->downloader_options->http_chunk_size)) {
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// Workaround for Youtube throttling the download speed.
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$body = new YoutubeStream($this->video);
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} else {
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$body = $stream->getBody();
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}
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}
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if ($request->isGet()) {
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$response = $response->withBody($body);
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}
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$response = $response->withHeader(
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'Content-Disposition',
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'attachment; filename="' .
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$this->video->getFilename() . '"'
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);
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return $response;
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}
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/**
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* Get a remuxed stream piped through the server.
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*
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* @param Response $response PSR-7 response
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* @param Request $request PSR-7 request
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*
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* @return Response HTTP response
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*/
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private function getRemuxStream(Request $request, Response $response)
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{
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if (!$this->config->remux) {
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throw new Exception(_('You need to enable remux mode to merge two formats.'));
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}
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$stream = $this->video->getRemuxStream();
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$response = $response->withHeader('Content-Type', 'video/x-matroska');
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if ($request->isGet()) {
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$response = $response->withBody(new Stream($stream));
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}
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return $response->withHeader(
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'Content-Disposition',
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'attachment; filename="' . $this->video->getFileNameWithExtension('mkv') . '"'
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);
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}
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/**
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* Get approriate HTTP response to download query.
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* Depends on whether we want to stream, remux or simply redirect.
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*
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* @param Response $response PSR-7 response
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* @param Request $request PSR-7 request
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*
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* @return Response HTTP response
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*/
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private function getDownloadResponse(Request $request, Response $response)
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{
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try {
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$videoUrls = $this->video->getUrl();
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} catch (EmptyUrlException $e) {
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/*
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If this happens it is probably a playlist
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so it will either be handled by getStream() or throw an exception anyway.
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*/
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$videoUrls = [];
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}
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if (count($videoUrls) > 1) {
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return $this->getRemuxStream($request, $response);
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} elseif ($this->config->stream && (isset($this->video->entries) || $request->getQueryParam('stream'))) {
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return $this->getStream($request, $response);
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} else {
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if (empty($videoUrls[0])) {
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throw new Exception(_("Can't find URL of video."));
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}
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return $response->withRedirect($videoUrls[0]);
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}
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}
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/**
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* Return a converted video file.
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*
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* @param Request $request PSR-7 request
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* @param Response $response PSR-7 response
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*
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* @return Response HTTP response
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*/
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private function getConvertedResponse(Request $request, Response $response)
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{
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$response = $response->withHeader(
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'Content-Disposition',
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'attachment; filename="' .
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$this->video->getFileNameWithExtension($request->getQueryParam('customFormat')) . '"'
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);
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$response = $response->withHeader('Content-Type', 'video/' . $request->getQueryParam('customFormat'));
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if ($request->isGet() || $request->isPost()) {
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$process = $this->video->getConvertedStream(
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$request->getQueryParam('customBitrate'),
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$request->getQueryParam('customFormat')
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);
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$response = $response->withBody(new Stream($process));
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}
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return $response;
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}
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}
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