526 lines
16 KiB
PHP
526 lines
16 KiB
PHP
<?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;
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use Alltube\Locale;
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use Alltube\PasswordException;
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use Alltube\VideoDownload;
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use Psr\Container\ContainerInterface;
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use Slim\Container;
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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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* Main controller.
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*/
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class FrontController
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{
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/**
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* Config instance.
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*
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* @var Config
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*/
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private $config;
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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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* Slim dependency container.
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*
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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.
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*
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* @var \Aura\Session\Segment
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*/
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private $sessionSegment;
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/**
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* Smarty view.
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*
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* @var \Slim\Views\Smarty
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*/
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private $view;
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/**
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* Default youtube-dl format.
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*
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* @var string
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*/
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private $defaultFormat = 'best[protocol^=http]';
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/**
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* LocaleManager instance.
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*
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* @var LocaleManager
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*/
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private $localeManager;
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/**
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* FrontController constructor.
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*
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* @param Container $container Slim dependency container
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* @param Config $config Config instance
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* @param array $cookies Cookie array
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*/
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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)) {
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$this->config = $config;
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} else {
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$this->config = Config::getInstance();
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}
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$this->download = new VideoDownload();
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$this->container = $container;
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$this->view = $this->container->get('view');
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$this->localeManager = $this->container->get('locale');
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$session_factory = new \Aura\Session\SessionFactory();
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$session = $session_factory->newInstance($cookies);
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$this->sessionSegment = $session->getSegment('Alltube\Controller\FrontController');
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if ($this->config->stream) {
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$this->defaultFormat = 'best';
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}
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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
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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 index(Request $request, Response $response)
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{
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$uri = $request->getUri()->withUserInfo(null);
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$this->view->render(
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$response,
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'index.tpl',
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[
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'config' => $this->config,
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'class' => 'index',
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'description' => 'Easily download videos from Youtube, Dailymotion, Vimeo and other websites.',
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'domain' => $uri->getScheme().'://'.$uri->getAuthority(),
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'canonical' => $this->getCanonicalUrl($request),
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'supportedLocales' => $this->localeManager->getSupportedLocales(),
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'locale' => $this->localeManager->getLocale(),
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]
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);
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return $response;
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}
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/**
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* Switch locale.
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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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* @param array $data Query parameters
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*
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* @return Response
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*/
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public function locale(Request $request, Response $response, array $data)
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{
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$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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/**
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* Display a list of extractors.
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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 extractors(Request $request, Response $response)
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{
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$this->view->render(
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$response,
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'extractors.tpl',
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[
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'extractors' => $this->download->listExtractors(),
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'class' => 'extractors',
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'title' => 'Supported websites',
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'description' => 'List of all supported websites from which Alltube Download '.
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'can extract video or audio files',
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'canonical' => $this->getCanonicalUrl($request),
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'locale' => $this->localeManager->getLocale(),
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]
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);
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return $response;
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}
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/**
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* Display a password prompt.
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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 password(Request $request, Response $response)
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{
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$this->view->render(
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$response,
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'password.tpl',
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[
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'class' => 'password',
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'title' => 'Password prompt',
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'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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);
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return $response;
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}
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/**
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* Return the 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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* @param array $params GET query parameters
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* @param string $password Video password
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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, array $params, $password = null)
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{
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try {
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if ($this->config->stream) {
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return $this->getStream($params['url'], 'mp3', $response, $request, $password);
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} else {
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$urls = $this->download->getURL($params['url'], 'mp3[protocol^=http]', $password);
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return $response->withRedirect($urls[0]);
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}
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} catch (PasswordException $e) {
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return $this->password($request, $response);
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} catch (\Exception $e) {
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$response = $response->withHeader(
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'Content-Disposition',
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'attachment; filename="'.
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$this->download->getAudioFilename($params['url'], 'bestaudio/best', $password).'"'
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);
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$response = $response->withHeader('Content-Type', 'audio/mpeg');
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if ($request->isGet() || $request->isPost()) {
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$process = $this->download->getAudioStream($params['url'], 'bestaudio/best', $password);
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$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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/**
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* Return the video description page.
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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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* @param array $params GET query parameters
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* @param string $password Video password
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*
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* @return Response HTTP response
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*/
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private function getVideoResponse(Request $request, Response $response, array $params, $password = null)
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{
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try {
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$video = $this->download->getJSON($params['url'], $this->defaultFormat, $password);
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} catch (PasswordException $e) {
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return $this->password($request, $response);
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}
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if ($this->config->stream) {
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$protocol = '';
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} else {
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$protocol = '[protocol^=http]';
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}
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if (isset($video->entries)) {
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$template = 'playlist.tpl';
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} else {
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$template = 'video.tpl';
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}
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$title = 'Video download';
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$description = 'Download video from '.$video->extractor_key;
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if (isset($video->title)) {
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$title = $video->title;
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$description = 'Download "'.$video->title.'" from '.$video->extractor_key;
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}
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$this->view->render(
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$response,
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$template,
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[
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'video' => $video,
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'class' => 'video',
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'title' => $title,
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'description' => $description,
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'protocol' => $protocol,
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'config' => $this->config,
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'canonical' => $this->getCanonicalUrl($request),
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'locale' => $this->localeManager->getLocale(),
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]
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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
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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 video(Request $request, Response $response)
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{
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$params = $request->getQueryParams();
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if (isset($params['url'])) {
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$password = $request->getParam('password');
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if (isset($password)) {
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$this->sessionSegment->setFlash($params['url'], $password);
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}
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if (isset($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.
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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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* @param \Exception $exception Error to display
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*
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* @return Response HTTP response
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*/
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public function error(Request $request, Response $response, \Exception $exception)
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{
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$this->view->render(
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$response,
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'error.tpl',
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[
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'errors' => $exception->getMessage(),
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'class' => 'video',
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'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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);
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return $response->withStatus(500);
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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 string $url URL of the video
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* @param string $format Requested format
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* @param Response $response PSR-7 response
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* @param Request $request PSR-7 request
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* @param string $password Video password
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*
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* @return Response HTTP response
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*/
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private function getStream($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)) {
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$stream = $this->download->getPlaylistArchiveStream($video, $format);
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$response = $response->withHeader('Content-Type', 'application/x-tar');
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$response = $response->withHeader(
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'Content-Disposition',
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'attachment; filename="'.$video->title.'.tar"'
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);
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return $response->withBody(new Stream($stream));
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} elseif ($video->protocol == 'rtmp') {
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$stream = $this->download->getRtmpStream($video);
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$response = $response->withHeader('Content-Type', 'video/'.$video->ext);
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$body = new Stream($stream);
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} elseif ($video->protocol == 'm3u8') {
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$stream = $this->download->getM3uStream($video);
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$response = $response->withHeader('Content-Type', 'video/'.$video->ext);
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$body = new Stream($stream);
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} else {
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$client = new \GuzzleHttp\Client();
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$stream = $client->request('GET', $video->url, ['stream' => true]);
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$response = $response->withHeader('Content-Type', $stream->getHeader('Content-Type'));
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$response = $response->withHeader('Content-Length', $stream->getHeader('Content-Length'));
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$body = $stream->getBody();
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}
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if ($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->download->getFilename($url, $format, $password).'"'
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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 string[] $urls URLs of the video and audio files
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* @param string $format Requested format
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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(array $urls, $format, Response $response, Request $request)
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{
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if (!$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 = $this->download->getRemuxStream($urls);
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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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$webpageUrl = $request->getQueryParam('url');
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return $response->withHeader('Content-Disposition', 'attachment; filename="'.pathinfo(
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$this->download->getFileNameWithExtension(
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'mkv',
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$webpageUrl,
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$format,
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$this->sessionSegment->getFlash($webpageUrl)
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),
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PATHINFO_FILENAME
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).'.mkv"');
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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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*
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* @param Request $request PSR-7 request
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*
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* @return string format
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*/
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private function getFormat(Request $request)
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{
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$format = $request->getQueryParam('format');
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if (!isset($format)) {
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$format = $this->defaultFormat;
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}
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return $format;
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}
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/**
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* 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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*
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* @param string $url URL of the video
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* @param string $format Requested format
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* @param Response $response PSR-7 response
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* @param Request $request PSR-7 request
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*
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* @return Response HTTP response
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*/
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private function getRedirectResponse($url, $format, Response $response, Request $request)
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{
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$videoUrls = $this->download->getURL(
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$url,
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$format,
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$this->sessionSegment->getFlash($url)
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);
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if (count($videoUrls) > 1) {
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return $this->getRemuxStream($videoUrls, $format, $response, $request);
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} elseif ($this->config->stream) {
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return $this->getStream(
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$url,
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$format,
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$response,
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$request,
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$this->sessionSegment->getFlash($url)
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);
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} else {
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if (empty($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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* 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 redirect(Request $request, Response $response)
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{
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$url = $request->getQueryParam('url');
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$format = $this->getFormat($request);
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if (isset($url)) {
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try {
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return $this->getRedirectResponse($url, $format, $response, $request);
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} catch (PasswordException $e) {
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return $response->withRedirect(
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$this->container->get('router')->pathFor('video').'?url='.urlencode($url)
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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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* Generate the canonical URL of the current page.
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*
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* @param Request $request PSR-7 Request
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*
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* @return string URL
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*/
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private function getCanonicalUrl(Request $request)
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{
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$uri = $request->getUri();
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$return = 'https://alltubedownload.net/';
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$path = $uri->getPath();
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if ($path != '/') {
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$return .= $path;
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}
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$query = $uri->getQuery();
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if (!empty($query)) {
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$return .= '?'.$query;
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}
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return $return;
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}
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}
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