alltube/controllers/FrontController.php

619 lines
19 KiB
PHP

<?php
/**
* FrontController class.
*/
namespace Alltube\Controller;
use Alltube\Config;
use Alltube\EmptyUrlException;
use Alltube\Locale;
use Alltube\LocaleManager;
use Alltube\PasswordException;
use Alltube\PlaylistArchiveStream;
use Alltube\Video;
use Aura\Session\Segment;
use Aura\Session\SessionFactory;
use Exception;
use GuzzleHttp\Client;
use Psr\Container\ContainerInterface;
use Slim\Container;
use Slim\Http\Request;
use Slim\Http\Response;
use Slim\Http\Stream;
use Slim\Views\Smarty;
/**
* Main controller.
*/
class FrontController
{
/**
* Config instance.
*
* @var Config
*/
private $config;
/**
* Current video.
*
* @var Video
*/
private $video;
/**
* Slim dependency container.
*
* @var ContainerInterface
*/
private $container;
/**
* Session segment used to store session variables.
*
* @var Segment
*/
private $sessionSegment;
/**
* Smarty view.
*
* @var Smarty
*/
private $view;
/**
* Default youtube-dl format.
*
* @var string
*/
private $defaultFormat = 'best[protocol=https]/best[protocol=http]';
/**
* LocaleManager instance.
*
* @var LocaleManager
*/
private $localeManager;
/**
* FrontController constructor.
*
* @param ContainerInterface $container Slim dependency container
* @param array $cookies Cookie array
*/
public function __construct(ContainerInterface $container, array $cookies = [])
{
$this->config = Config::getInstance();
$this->container = $container;
$this->view = $this->container->get('view');
$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';
}
}
/**
* 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()->withUserInfo('');
$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(),
]
);
return $response;
}
/**
* 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)
{
$this->localeManager->setLocale(new Locale($data['locale']));
return $response->withRedirect($this->container->get('router')->pathFor('index'));
}
/**
* 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',
[
'config' => $this->config,
'extractors' => Video::getExtractors(),
'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),
'locale' => $this->localeManager->getLocale(),
]
);
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',
[
'config' => $this->config,
'class' => 'password',
'title' => _('Password prompt'),
'description' => _('You need a password in order to download this video with Alltube Download'),
'canonical' => $this->getCanonicalUrl($request),
'locale' => $this->localeManager->getLocale(),
]
);
return $response;
}
/**
* 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) {
return $this->password($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);
}
}
/**
* Return the video description page.
*
* @param Request $request PSR-7 request
* @param Response $response PSR-7 response
*
* @return Response HTTP response
*/
private function getVideoResponse(Request $request, Response $response)
{
try {
$this->video->getJson();
} catch (PasswordException $e) {
return $this->password($request, $response);
}
if (isset($this->video->entries)) {
$template = 'playlist.tpl';
} else {
$template = 'video.tpl';
}
$title = _('Video download');
$description = _('Download video from ').$this->video->extractor_key;
if (isset($this->video->title)) {
$title = $this->video->title;
$description = _('Download').' "'.$this->video->title.'" '._('from').' '.$this->video->extractor_key;
}
$this->view->render(
$response,
$template,
[
'video' => $this->video,
'class' => 'video',
'title' => $title,
'description' => $description,
'config' => $this->config,
'canonical' => $this->getCanonicalUrl($request),
'locale' => $this->localeManager->getLocale(),
'defaultFormat' => $this->defaultFormat,
]
);
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)
{
$url = $request->getQueryParam('url') ?: $request->getQueryParam('v');
if (isset($url) && !empty($url)) {
$password = $request->getParam('password');
if (isset($password)) {
$this->sessionSegment->setFlash($url, $password);
}
$this->video = new Video($url, $this->defaultFormat, $password);
if ($request->getQueryParam('audio')) {
return $this->getAudioResponse($request, $response);
} else {
return $this->getVideoResponse($request, $response);
}
} 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',
[
'config' => $this->config,
'errors' => $exception->getMessage(),
'class' => 'video',
'title' => _('Error'),
'canonical' => $this->getCanonicalUrl($request),
'locale' => $this->localeManager->getLocale(),
]
);
return $response->withStatus(500);
}
/**
* 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)) {
$stream = new PlaylistArchiveStream($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 {
$client = new Client();
$stream = $client->request(
'GET',
$this->video->getUrl(),
[
'stream' => true,
'headers' => ['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 video format from request parameters or default format if none is specified.
*
* @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
* 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 getRedirectResponse(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;
}
/**
* 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)
{
$format = $this->getFormat($request);
$url = $request->getQueryParam('url');
if (isset($url)) {
$this->video = new Video($url, $format, $this->sessionSegment->getFlash($url));
try {
if ($this->config->convertAdvanced && !is_null($request->getQueryParam('customConvert'))) {
return $this->getConvertedResponse($request, $response);
}
return $this->getRedirectResponse($request, $response);
} catch (PasswordException $e) {
return $response->withRedirect(
$this->container->get('router')->pathFor('video').'?url='.urlencode($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'));
}
}
/**
* 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)
{
$format = $this->getFormat($request);
$url = $request->getQueryParam('url');
if (isset($url)) {
try {
$this->video = new Video($url, $format);
return $response->withJson($this->video->getJson());
} 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);
}
}
/**
* 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;
}
}