alltube/controllers/FrontController.php

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<?php
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/**
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* FrontController class.
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*/
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namespace Alltube\Controller;
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use Alltube\Config;
use Alltube\EmptyUrlException;
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use Alltube\Locale;
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use Alltube\LocaleManager;
use Alltube\PasswordException;
use Alltube\PlaylistArchiveStream;
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use Alltube\VideoDownload;
use Aura\Session\Segment;
use Aura\Session\SessionFactory;
use Exception;
use GuzzleHttp\Client;
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use Psr\Container\ContainerInterface;
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use Slim\Container;
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use Slim\Http\Request;
use Slim\Http\Response;
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use Slim\Http\Stream;
use Slim\Views\Smarty;
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/**
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* Main controller.
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*/
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class FrontController
{
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/**
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* Config instance.
*
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* @var Config
*/
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private $config;
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/**
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* VideoDownload instance.
*
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* @var VideoDownload
*/
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private $download;
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/**
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* Slim dependency container.
*
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* @var ContainerInterface
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*/
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private $container;
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/**
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* Session segment used to store session variables.
*
* @var Segment
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*/
private $sessionSegment;
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/**
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* Smarty view.
*
* @var Smarty
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*/
private $view;
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/**
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* Default youtube-dl format.
*
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* @var string
*/
private $defaultFormat = 'best[protocol=https]/best[protocol=http]';
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/**
* LocaleManager instance.
*
* @var LocaleManager
*/
private $localeManager;
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/**
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* FrontController constructor.
*
* @param ContainerInterface $container Slim dependency container
* @param Config $config Config instance
* @param array $cookies Cookie array
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*/
public function __construct(ContainerInterface $container, Config $config = null, array $cookies = [])
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{
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if (isset($config)) {
$this->config = $config;
} else {
$this->config = Config::getInstance();
}
$this->download = new VideoDownload($this->config);
$this->container = $container;
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$this->view = $this->container->get('view');
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$this->localeManager = $this->container->get('locale');
$session_factory = new SessionFactory();
$session = $session_factory->newInstance($cookies);
$this->sessionSegment = $session->getSegment(self::class);
if ($this->config->stream) {
$this->defaultFormat = 'best';
}
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}
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/**
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* Display index page.
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*
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* @param Request $request PSR-7 request
* @param Response $response PSR-7 response
*
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* @return Response HTTP response
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*/
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public function index(Request $request, Response $response)
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{
$uri = $request->getUri()->withUserInfo('');
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$this->view->render(
$response,
'index.tpl',
[
'config' => $this->config,
'class' => 'index',
'description' => _('Easily download videos from Youtube, Dailymotion, Vimeo and other websites.'),
'domain' => $uri->getScheme().'://'.$uri->getAuthority(),
'canonical' => $this->getCanonicalUrl($request),
'supportedLocales' => $this->localeManager->getSupportedLocales(),
'locale' => $this->localeManager->getLocale(),
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]
);
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return $response;
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}
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/**
* Switch locale.
*
* @param Request $request PSR-7 request
* @param Response $response PSR-7 response
* @param array $data Query parameters
*
* @return Response
*/
public function locale(Request $request, Response $response, array $data)
{
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$this->localeManager->setLocale(new Locale($data['locale']));
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return $response->withRedirect($this->container->get('router')->pathFor('index'));
}
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/**
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* Display a list of extractors.
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*
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* @param Request $request PSR-7 request
* @param Response $response PSR-7 response
*
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* @return Response HTTP response
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*/
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public function extractors(Request $request, Response $response)
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{
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$this->view->render(
$response,
'extractors.tpl',
[
'config' => $this->config,
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'extractors' => $this->download->listExtractors(),
'class' => 'extractors',
'title' => _('Supported websites'),
'description' => _('List of all supported websites from which Alltube Download '.
'can extract video or audio files'),
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'canonical' => $this->getCanonicalUrl($request),
'locale' => $this->localeManager->getLocale(),
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]
);
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return $response;
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}
/**
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* Display a password prompt.
*
* @param Request $request PSR-7 request
* @param Response $response PSR-7 response
*
* @return Response HTTP response
*/
public function password(Request $request, Response $response)
{
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$this->view->render(
$response,
'password.tpl',
[
'config' => $this->config,
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'class' => 'password',
'title' => _('Password prompt'),
'description' => _('You need a password in order to download this video with Alltube Download'),
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'canonical' => $this->getCanonicalUrl($request),
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'locale' => $this->localeManager->getLocale(),
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]
);
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return $response;
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}
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/**
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* Return a converted MP3 file.
*
* @param Request $request PSR-7 request
* @param Response $response PSR-7 response
* @param array $params GET query parameters
* @param string $password Video password
*
* @return Response HTTP response
*/
private function getConvertedAudioResponse(Request $request, Response $response, array $params, $password = null)
{
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if (!isset($params['from'])) {
$params['from'] = '';
}
if (!isset($params['to'])) {
$params['to'] = '';
}
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$response = $response->withHeader(
'Content-Disposition',
'attachment; filename="'.
$this->download->getAudioFilename($params['url'], 'bestaudio/best', $password).'"'
);
$response = $response->withHeader('Content-Type', 'audio/mpeg');
if ($request->isGet() || $request->isPost()) {
try {
$process = $this->download->getAudioStream(
$params['url'],
'bestaudio/best',
$password,
$params['from'],
$params['to']
);
} catch (Exception $e) {
$process = $this->download->getAudioStream(
$params['url'],
$this->defaultFormat,
$password,
$params['from'],
$params['to']
);
}
$response = $response->withBody(new Stream($process));
}
return $response;
}
/**
* Return the MP3 file.
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*
* @param Request $request PSR-7 request
* @param Response $response PSR-7 response
* @param array $params GET query parameters
* @param string $password Video password
*
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* @return Response HTTP response
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*/
private function getAudioResponse(Request $request, Response $response, array $params, $password = null)
{
try {
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if ((isset($params['from']) && !empty($params['from']))
|| (isset($params['to']) && !empty($params['to']))
) {
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throw new Exception('Force convert when we need to seek.');
}
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if ($this->config->stream) {
return $this->getStream($params['url'], 'mp3', $response, $request, $password);
} else {
$urls = $this->download->getURL($params['url'], 'mp3[protocol=https]/mp3[protocol=http]', $password);
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return $response->withRedirect($urls[0]);
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}
} catch (PasswordException $e) {
return $this->password($request, $response);
} catch (Exception $e) {
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return $this->getConvertedAudioResponse($request, $response, $params, $password);
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}
}
/**
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* Return the video description page.
*
* @param Request $request PSR-7 request
* @param Response $response PSR-7 response
* @param array $params GET query parameters
* @param string $password Video password
*
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* @return Response HTTP response
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*/
private function getVideoResponse(Request $request, Response $response, array $params, $password = null)
{
try {
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$video = $this->download->getJSON($params['url'], $this->defaultFormat, $password);
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} catch (PasswordException $e) {
return $this->password($request, $response);
}
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if (isset($video->entries)) {
$template = 'playlist.tpl';
} else {
$template = 'video.tpl';
}
$title = _('Video download');
$description = _('Download video from ').$video->extractor_key;
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if (isset($video->title)) {
$title = $video->title;
$description = _('Download').' "'.$video->title.'" '._('from').' '.$video->extractor_key;
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}
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$this->view->render(
$response,
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$template,
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[
'video' => $video,
'class' => 'video',
'title' => $title,
'description' => $description,
'config' => $this->config,
'canonical' => $this->getCanonicalUrl($request),
'locale' => $this->localeManager->getLocale(),
'defaultFormat' => $this->defaultFormat,
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]
);
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return $response;
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}
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/**
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* Dislay information about the video.
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*
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* @param Request $request PSR-7 request
* @param Response $response PSR-7 response
*
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* @return Response HTTP response
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*/
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public function video(Request $request, Response $response)
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{
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$params = $request->getQueryParams();
if (!isset($params['url']) && isset($params['v'])) {
$params['url'] = $params['v'];
}
if (isset($params['url']) && !empty($params['url'])) {
$password = $request->getParam('password');
if (isset($password)) {
$this->sessionSegment->setFlash($params['url'], $password);
}
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if (isset($params['audio'])) {
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return $this->getAudioResponse($request, $response, $params, $password);
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} else {
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return $this->getVideoResponse($request, $response, $params, $password);
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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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* Display an error page.
*
* @param Request $request PSR-7 request
* @param Response $response PSR-7 response
* @param Exception $exception Error to display
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*
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* @return Response HTTP response
*/
public function error(Request $request, Response $response, Exception $exception)
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{
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$this->view->render(
$response,
'error.tpl',
[
'config' => $this->config,
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'errors' => $exception->getMessage(),
'class' => 'video',
'title' => _('Error'),
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'canonical' => $this->getCanonicalUrl($request),
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'locale' => $this->localeManager->getLocale(),
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]
);
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return $response->withStatus(500);
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}
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/**
* Get a video/audio stream piped through the server.
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*
* @param string $url URL of the video
* @param string $format Requested format
* @param Response $response PSR-7 response
* @param Request $request PSR-7 request
* @param string $password Video password
*
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* @return Response HTTP response
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*/
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private function getStream($url, $format, Response $response, Request $request, $password = null)
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{
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$video = $this->download->getJSON($url, $format, $password);
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if (isset($video->entries)) {
$stream = new PlaylistArchiveStream($this->config, $video, $format);
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$response = $response->withHeader('Content-Type', 'application/x-tar');
$response = $response->withHeader(
'Content-Disposition',
'attachment; filename="'.$video->title.'.tar"'
);
return $response->withBody($stream);
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} elseif ($video->protocol == 'rtmp') {
$stream = $this->download->getRtmpStream($video);
$response = $response->withHeader('Content-Type', 'video/'.$video->ext);
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$body = new Stream($stream);
} elseif ($video->protocol == 'm3u8' || $video->protocol == 'm3u8_native') {
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$stream = $this->download->getM3uStream($video);
$response = $response->withHeader('Content-Type', 'video/'.$video->ext);
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$body = new Stream($stream);
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} else {
$client = new Client();
$stream = $client->request(
'GET',
$video->url,
[
'stream' => true,
'headers' => ['Range' => $request->getHeader('Range')],
]
);
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$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 = $response->withStatus(206);
}
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$body = $stream->getBody();
}
if ($request->isGet()) {
$response = $response->withBody($body);
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}
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$response = $response->withHeader(
'Content-Disposition',
'attachment; filename="'.
$this->download->getFilename($url, $format, $password).'"'
);
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return $response;
}
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/**
* Get a remuxed stream piped through the server.
*
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* @param string[] $urls URLs of the video and audio files
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* @param string $format Requested format
* @param Response $response PSR-7 response
* @param Request $request PSR-7 request
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*
* @return Response HTTP response
*/
private function getRemuxStream(array $urls, $format, Response $response, Request $request)
{
if (!$this->config->remux) {
throw new Exception(_('You need to enable remux mode to merge two formats.'));
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}
$stream = $this->download->getRemuxStream($urls);
$response = $response->withHeader('Content-Type', 'video/x-matroska');
if ($request->isGet()) {
$response = $response->withBody(new Stream($stream));
}
$webpageUrl = $request->getQueryParam('url');
return $response->withHeader(
'Content-Disposition',
'attachment; filename="'.$this->download->getFileNameWithExtension(
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'mkv',
$webpageUrl,
$format,
$this->sessionSegment->getFlash($webpageUrl)
)
);
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}
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/**
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* Get video format from request parameters or default format if none is specified.
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*
* @param Request $request PSR-7 request
*
* @return string format
*/
private function getFormat(Request $request)
{
$format = $request->getQueryParam('format');
if (!isset($format)) {
$format = $this->defaultFormat;
}
return $format;
}
/**
* Get approriate HTTP response to redirect query
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* Depends on whether we want to stream, remux or simply redirect.
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*
* @param string $url URL of the video
* @param string $format Requested format
* @param Response $response PSR-7 response
* @param Request $request PSR-7 request
*
* @return Response HTTP response
*/
private function getRedirectResponse($url, $format, Response $response, Request $request)
{
try {
$videoUrls = $this->download->getURL(
$url,
$format,
$this->sessionSegment->getFlash($url)
);
} catch (EmptyUrlException $e) {
/*
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.
*/
$videoUrls = [];
}
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if (count($videoUrls) > 1) {
return $this->getRemuxStream($videoUrls, $format, $response, $request);
} elseif ($this->config->stream) {
return $this->getStream(
$url,
$format,
$response,
$request,
$this->sessionSegment->getFlash($url)
);
} else {
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if (empty($videoUrls[0])) {
throw new Exception(_("Can't find URL of video."));
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}
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return $response->withRedirect($videoUrls[0]);
}
}
/**
* Return a converted video file.
*
* @param Request $request PSR-7 request
* @param Response $response PSR-7 response
* @param array $params GET query parameters
* @param string $format Requested source format
*
* @return Response HTTP response
*/
private function getConvertedResponse(Request $request, Response $response, array $params, $format)
{
$password = $request->getParam('password');
$response = $response->withHeader(
'Content-Disposition',
'attachment; filename="'.
$this->download->getFileNameWithExtension(
$params['customFormat'],
$params['url'],
$format,
$password
).'"'
);
$response = $response->withHeader('Content-Type', 'video/'.$params['customFormat']);
if ($request->isGet() || $request->isPost()) {
$process = $this->download->getConvertedStream(
$params['url'],
$format,
$params['customBitrate'],
$params['customFormat'],
$password
);
$response = $response->withBody(new Stream($process));
}
return $response;
}
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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
* @param Response $response PSR-7 response
*
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* @return Response HTTP response
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*/
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public function redirect(Request $request, Response $response)
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{
$params = $request->getQueryParams();
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$format = $this->getFormat($request);
if (isset($params['url'])) {
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try {
if ($this->config->convertAdvanced && !is_null($request->getQueryParam('customConvert'))) {
return $this->getConvertedResponse($request, $response, $params, $format);
}
return $this->getRedirectResponse($params['url'], $format, $response, $request);
} catch (PasswordException $e) {
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return $response->withRedirect(
$this->container->get('router')->pathFor('video').'?url='.urlencode($params['url'])
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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 {
return $response->withRedirect($this->container->get('router')->pathFor('index'));
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}
}
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/**
* Return the JSON object generated by youtube-dl.
*
* @param Request $request PSR-7 request
* @param Response $response PSR-7 response
*
* @return Response HTTP response
*/
public function json(Request $request, Response $response)
{
$params = $request->getQueryParams();
$format = $this->getFormat($request);
if (isset($params['url'])) {
try {
return $response->withJson(
$this->download->getJSON(
$params['url'],
$format
)
);
} catch (Exception $e) {
return $response->withJson(['error' => $e->getMessage()])
->withStatus(500);
}
} else {
return $response->withJson(['error' => 'You need to provide the url parameter'])
->withStatus(400);
}
}
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/**
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* Generate the canonical URL of the current page.
*
* @param Request $request PSR-7 Request
*
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* @return string URL
*/
private function getCanonicalUrl(Request $request)
{
$uri = $request->getUri();
$return = 'https://alltubedownload.net/';
$path = $uri->getPath();
if ($path != '/') {
$return .= $path;
}
$query = $uri->getQuery();
if (!empty($query)) {
$return .= '?'.$query;
}
return $return;
}
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}