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refactor: Split FrontController into multiple classes

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Closes #177
This commit is contained in:
Pierre Rudloff 2019-04-22 16:05:58 +02:00
parent 196d0b1338
commit 25f33bba56
10 changed files with 904 additions and 703 deletions
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274
controllers/DownloadController.php Normal file
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<?php
/**
* DownloadController class.
*/
namespace Alltube\Controller;
use Alltube\ConvertedPlaylistArchiveStream;
use Alltube\EmptyUrlException;
use Alltube\PasswordException;
use Alltube\PlaylistArchiveStream;
use Alltube\Video;
use Exception;
use Slim\Http\Request;
use Slim\Http\Response;
use Slim\Http\Stream;
/**
* Controller that returns a video or audio file.
*/
class DownloadController extends BaseController
{
/**
* Redirect to video file.
*
* @param Request $request PSR-7 request
* @param Response $response PSR-7 response
*
* @return Response HTTP response
*/
public function download(Request $request, Response $response)
{
$url = $request->getQueryParam('url');
if (isset($url)) {
$this->video = new Video($url, $this->getFormat($request), $this->getPassword($request));
try {
if ($this->config->convert && $request->getQueryParam('audio')) {
// Audio convert.
return $this->getAudioResponse($request, $response);
} elseif ($this->config->convertAdvanced && !is_null($request->getQueryParam('customConvert'))) {
// Advance convert.
return $this->getConvertedResponse($request, $response);
}
// Regular download.
return $this->getDownloadResponse($request, $response);
} catch (PasswordException $e) {
return $response->withRedirect(
$this->container->get('router')->pathFor('info').'?'.http_build_query($request->getQueryParams())
);
} catch (Exception $e) {
$response->getBody()->write($e->getMessage());
return $response->withHeader('Content-Type', 'text/plain')->withStatus(500);
}
} else {
return $response->withRedirect($this->container->get('router')->pathFor('index'));
}
}
/**
* Return a converted MP3 file.
*
* @param Request $request PSR-7 request
* @param Response $response PSR-7 response
*
* @return Response HTTP response
*/
private function getConvertedAudioResponse(Request $request, Response $response)
{
$from = $request->getQueryParam('from');
$to = $request->getQueryParam('to');
$response = $response->withHeader(
'Content-Disposition',
'attachment; filename="'.
$this->video->getFileNameWithExtension('mp3').'"'
);
$response = $response->withHeader('Content-Type', 'audio/mpeg');
if ($request->isGet() || $request->isPost()) {
try {
$process = $this->video->getAudioStream($from, $to);
} catch (Exception $e) {
// Fallback to default format.
$this->video = $this->video->withFormat($this->defaultFormat);
$process = $this->video->getAudioStream($from, $to);
}
$response = $response->withBody(new Stream($process));
}
return $response;
}
/**
* Return the MP3 file.
*
* @param Request $request PSR-7 request
* @param Response $response PSR-7 response
*
* @return Response HTTP response
*/
private function getAudioResponse(Request $request, Response $response)
{
try {
// First, we try to get a MP3 file directly.
if (!empty($request->getQueryParam('from')) || !empty($request->getQueryParam('to'))) {
throw new Exception('Force convert when we need to seek.');
}
if ($this->config->stream) {
$this->video = $this->video->withFormat('mp3');
return $this->getStream($request, $response);
} else {
$this->video = $this->video->withFormat('mp3[protocol=https]/mp3[protocol=http]');
$urls = $this->video->getUrl();
return $response->withRedirect($urls[0]);
}
} catch (PasswordException $e) {
$frontController = new FrontController($this->container);
return $frontController->password($request, $response);
} catch (Exception $e) {
// If MP3 is not available, we convert it.
$this->video = $this->video->withFormat($this->defaultFormat);
return $this->getConvertedAudioResponse($request, $response);
}
}
/**
* Get a video/audio stream piped through the server.
*
* @param Response $response PSR-7 response
* @param Request $request PSR-7 request
*
* @return Response HTTP response
*/
private function getStream(Request $request, Response $response)
{
if (isset($this->video->entries)) {
if ($this->config->convert && $request->getQueryParam('audio')) {
$stream = new ConvertedPlaylistArchiveStream($this->video);
} else {
$stream = new PlaylistArchiveStream($this->video);
}
$response = $response->withHeader('Content-Type', 'application/zip');
$response = $response->withHeader(
'Content-Disposition',
'attachment; filename="'.$this->video->title.'.zip"'
);
return $response->withBody($stream);
} elseif ($this->video->protocol == 'rtmp') {
$response = $response->withHeader('Content-Type', 'video/'.$this->video->ext);
$body = new Stream($this->video->getRtmpStream());
} elseif ($this->video->protocol == 'm3u8' || $this->video->protocol == 'm3u8_native') {
$response = $response->withHeader('Content-Type', 'video/'.$this->video->ext);
$body = new Stream($this->video->getM3uStream());
} else {
$stream = $this->video->getHttpResponse(['Range' => $request->getHeader('Range')]);
$response = $response->withHeader('Content-Type', $stream->getHeader('Content-Type'));
$response = $response->withHeader('Content-Length', $stream->getHeader('Content-Length'));
$response = $response->withHeader('Accept-Ranges', $stream->getHeader('Accept-Ranges'));
$response = $response->withHeader('Content-Range', $stream->getHeader('Content-Range'));
if ($stream->getStatusCode() == 206) {
$response = $response->withStatus(206);
}
$body = $stream->getBody();
}
if ($request->isGet()) {
$response = $response->withBody($body);
}
$response = $response->withHeader(
'Content-Disposition',
'attachment; filename="'.
$this->video->getFilename().'"'
);
return $response;
}
/**
* Get a remuxed stream piped through the server.
*
* @param Response $response PSR-7 response
* @param Request $request PSR-7 request
*
* @return Response HTTP response
*/
private function getRemuxStream(Request $request, Response $response)
{
if (!$this->config->remux) {
throw new Exception(_('You need to enable remux mode to merge two formats.'));
}
$stream = $this->video->getRemuxStream();
$response = $response->withHeader('Content-Type', 'video/x-matroska');
if ($request->isGet()) {
$response = $response->withBody(new Stream($stream));
}
return $response->withHeader(
'Content-Disposition',
'attachment; filename="'.$this->video->getFileNameWithExtension('mkv')
);
}
/**
* Get approriate HTTP response to download query.
* Depends on whether we want to stream, remux or simply redirect.
*
* @param Response $response PSR-7 response
* @param Request $request PSR-7 request
*
* @return Response HTTP response
*/
private function getDownloadResponse(Request $request, Response $response)
{
try {
$videoUrls = $this->video->getUrl();
} catch (EmptyUrlException $e) {
/*
If this happens it is probably a playlist
so it will either be handled by getStream() or throw an exception anyway.
*/
$videoUrls = [];
}
if (count($videoUrls) > 1) {
return $this->getRemuxStream($request, $response);
} elseif ($this->config->stream) {
return $this->getStream($request, $response);
} else {
if (empty($videoUrls[0])) {
throw new Exception(_("Can't find URL of video."));
}
return $response->withRedirect($videoUrls[0]);
}
}
/**
* Return a converted video file.
*
* @param Request $request PSR-7 request
* @param Response $response PSR-7 response
*
* @return Response HTTP response
*/
private function getConvertedResponse(Request $request, Response $response)
{
$response = $response->withHeader(
'Content-Disposition',
'attachment; filename="'.
$this->video->getFileNameWithExtension($request->getQueryParam('customFormat')).'"'
);
$response = $response->withHeader('Content-Type', 'video/'.$request->getQueryParam('customFormat'));
if ($request->isGet() || $request->isPost()) {
$process = $this->video->getConvertedStream(
$request->getQueryParam('customBitrate'),
$request->getQueryParam('customFormat')
);
$response = $response->withBody(new Stream($process));
}
return $response;
}
}