alltube/controllers/FrontController.php
2017-04-24 17:49:13 +02:00

401 lines
12 KiB
PHP

<?php
/**
* FrontController class.
*/
namespace Alltube\Controller;
use Alltube\Config;
use Alltube\PasswordException;
use Alltube\VideoDownload;
use Interop\Container\ContainerInterface;
use Slim\Container;
use Slim\Http\Request;
use Slim\Http\Response;
use Slim\Http\Stream;
/**
* Main controller.
*/
class FrontController
{
/**
* Config instance.
*
* @var Config
*/
private $config;
/**
* VideoDownload instance.
*
* @var VideoDownload
*/
private $download;
/**
* Slim dependency container.
*
* @var ContainerInterface
*/
private $container;
/**
* Session segment used to store session variables.
*
* @var \Aura\Session\Segment
*/
private $sessionSegment;
/**
* Smarty view.
*
* @var \Slim\Views\Smarty
*/
private $view;
/**
* Default youtube-dl format.
*
* @var string
*/
private $defaultFormat = 'best[protocol^=http]';
/**
* FrontController constructor.
*
* @param Container $container Slim dependency container
*/
public function __construct(ContainerInterface $container, Config $config = null)
{
if (isset($config)) {
$this->config = $config;
} else {
$this->config = Config::getInstance();
}
$this->download = new VideoDownload();
$this->container = $container;
$this->view = $this->container->get('view');
$session_factory = new \Aura\Session\SessionFactory();
$session = $session_factory->newInstance($_COOKIE);
$this->sessionSegment = $session->getSegment('Alltube\Controller\FrontController');
if ($this->config->stream) {
$this->defaultFormat = 'best';
}
}
/**
* Display index page.
*
* @param Request $request PSR-7 request
* @param Response $response PSR-7 response
*
* @return Response HTTP response
*/
public function index(Request $request, Response $response)
{
$uri = $request->getUri();
$this->view->render(
$response,
'index.tpl',
[
'convert' => $this->config->convert,
'uglyUrls' => $this->config->uglyUrls,
'class' => 'index',
'description' => 'Easily download videos from Youtube, Dailymotion, Vimeo and other websites.',
'domain' => $uri->getScheme().'://'.$uri->getAuthority(),
'canonical' => $this->getCanonicalUrl($request),
]
);
return $response;
}
/**
* Display a list of extractors.
*
* @param Request $request PSR-7 request
* @param Response $response PSR-7 response
*
* @return Response HTTP response
*/
public function extractors(Request $request, Response $response)
{
$this->view->render(
$response,
'extractors.tpl',
[
'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',
'canonical' => $this->getCanonicalUrl($request),
]
);
return $response;
}
/**
* 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)
{
$this->view->render(
$response,
'password.tpl',
[
'class' => 'password',
'title' => 'Password prompt',
'description' => 'You need a password in order to download this video with Alltube Download',
'canonical' => $this->getCanonicalUrl($request),
]
);
return $response;
}
/**
* Return the 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 getAudioResponse(Request $request, Response $response, array $params, $password = null)
{
try {
if ($this->config->stream) {
return $this->getStream($params['url'], 'mp3', $response, $request, $password);
} else {
$url = $this->download->getURL($params['url'], 'mp3[protocol^=http]', $password);
return $response->withRedirect($url);
}
} catch (PasswordException $e) {
return $this->password($request, $response);
} catch (\Exception $e) {
$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()) {
$process = $this->download->getAudioStream($params['url'], 'bestaudio/best', $password);
$response = $response->withBody(new Stream($process));
}
return $response;
}
}
/**
* 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
*
* @return Response HTTP response
*/
private function getVideoResponse(Request $request, Response $response, array $params, $password = null)
{
try {
$video = $this->download->getJSON($params['url'], $this->defaultFormat, $password);
} catch (PasswordException $e) {
return $this->password($request, $response);
}
if ($this->config->stream) {
$protocol = '';
} else {
$protocol = '[protocol^=http]';
}
$this->view->render(
$response,
'video.tpl',
[
'video' => $video,
'class' => 'video',
'title' => $video->title,
'description' => 'Download "'.$video->title.'" from '.$video->extractor_key,
'protocol' => $protocol,
'config' => $this->config,
'canonical' => $this->getCanonicalUrl($request),
'uglyUrls' => $this->config->uglyUrls,
]
);
return $response;
}
/**
* Dislay information about the video.
*
* @param Request $request PSR-7 request
* @param Response $response PSR-7 response
*
* @return Response HTTP response
*/
public function video(Request $request, Response $response)
{
$params = $request->getQueryParams();
if (isset($params['url'])) {
$password = $request->getParam('password');
if (isset($password)) {
$this->sessionSegment->setFlash($params['url'], $password);
}
if (isset($params['audio'])) {
return $this->getAudioResponse($request, $response, $params, $password);
} else {
return $this->getVideoResponse($request, $response, $params, $password);
}
} else {
return $response->withRedirect($this->container->get('router')->pathFor('index'));
}
}
/**
* Display an error page.
*
* @param Request $request PSR-7 request
* @param Response $response PSR-7 response
* @param \Exception $exception Error to display
*
* @return Response HTTP response
*/
public function error(Request $request, Response $response, \Exception $exception)
{
$this->view->render(
$response,
'error.tpl',
[
'errors' => $exception->getMessage(),
'class' => 'video',
'title' => 'Error',
'canonical' => $this->getCanonicalUrl($request),
]
);
return $response->withStatus(500);
}
/**
* Get a video/audio stream piped through the server.
*
* @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 $password Video password
*
* @return Response HTTP response
*/
private function getStream($url, $format, $response, $request, $password = null)
{
$video = $this->download->getJSON($url, $format, $password);
if ($video->protocol == 'm3u8') {
$stream = $this->download->getM3uStream($video);
$response = $response->withHeader('Content-Type', 'video/'.$video->ext);
if ($request->isGet()) {
$response = $response->withBody(new Stream($stream));
}
} else {
$client = new \GuzzleHttp\Client();
$stream = $client->request('GET', $video->url, ['stream' => true]);
$response = $response->withHeader('Content-Type', $stream->getHeader('Content-Type'));
$response = $response->withHeader('Content-Length', $stream->getHeader('Content-Length'));
if ($request->isGet()) {
$response = $response->withBody($stream->getBody());
}
}
$response = $response->withHeader('Content-Disposition', 'attachment; filename="'.$video->_filename.'"');
return $response;
}
/**
* Redirect to video file.
*
* @param Request $request PSR-7 request
* @param Response $response PSR-7 response
*
* @return Response HTTP response
*/
public function redirect(Request $request, Response $response)
{
$params = $request->getQueryParams();
if (isset($params['format'])) {
$format = $params['format'];
} else {
$format = $this->defaultFormat;
}
if (isset($params['url'])) {
try {
if ($this->config->stream) {
return $this->getStream(
$params['url'],
$format,
$response,
$request,
$this->sessionSegment->getFlash($params['url'])
);
} else {
$url = $this->download->getURL(
$params['url'],
$format,
$this->sessionSegment->getFlash($params['url'])
);
return $response->withRedirect($url);
}
} catch (PasswordException $e) {
return $response->withRedirect(
$this->container->get('router')->pathFor('video').'?url='.urlencode($params['url'])
);
} 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'));
}
}
/**
* Generate the canonical URL of the current page.
*
* @param Request $request PSR-7 Request
*
* @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;
}
}