257 lines
8.0 KiB
PHP
257 lines
8.0 KiB
PHP
<?php
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class YTDownloader {
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private $cache_dir;
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private $cookie_dir;
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private $itag_info = array(
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// Full Video
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18 => "MP4[640x360]",
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22 => "HD MP4[1280x720]",
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36 => "3GP[320x180]",
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43 => "WEBM[640x360]",
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17 => "3GP[176x144]",
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// DASH videos
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137 => "(Video Only) MP4[1920x1080]",
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248 => "(Video Only) WEBM[1920x1080]",
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136 => "(Video Only) MP4[1280x720]",
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247 => "(Video Only) WEBM[1280x720]",
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135 => "(Video Only) MP4[854x480]",
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244 => "(Video Only) WEBM[854x480]",
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134 => "(Video Only) MP4[640x360]",
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243 => "(Video Only) WEBM[640x360]",
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133 => "(Video Only) MP4[320x240]",
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242 => "(Video Only) WEBM[320x240]",
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160 => "(Video Only) MP4[176x144]",
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278 => "(Video Only) WEBM[176x144]",
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// Dash Audios
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140 => "(Audio Only) M4A[128Kbps]",
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171 => "(Audio Only) WEBM[128Kbps]",
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249 => "(Audio Only) WEBM[50Kbps]",
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250 => "(Audio Only) WEBM[70Kbps]",
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251 => "(Audio Only) WEBM[160Kbps]"
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);
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private $itag_ext = array(
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// Full Video
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18 => ".mp4",
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22 => ".mp4",
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36 => ".3gp",
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43 => ".webm",
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17 => ".3gp",
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// DASH videos
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137 => ".mp4",
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248 => ".webm",
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136 => ".mp4",
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247 => ".webm",
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135 => ".mp4",
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244 => ".webm",
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134 => ".mp4",
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243 => ".webm",
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133 => ".mp4",
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242 => ".webm",
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160 => ".mp4",
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278 => ".webm",
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// Dash Audios
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140 => ".mp4",
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171 => ".webm",
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249 => ".webm",
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250 => ".webm",
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251 => ".webm"
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);
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function __construct(){
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$this->cache_dir = dirname(__FILE__).'/.cache';
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$this->cookie_dir = sys_get_temp_dir();
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if(!file_exists($this->cache_dir) && is_writeable(dirname(__FILE__))) {
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mkdir($this->cache_dir,0755);
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}
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}
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public function getDownloadLinks($id) {
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$returnData = FALSE;
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$videoID = $this->extractId($id);
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$webPage = $this->curlGet('https://www.youtube.com/watch?v='.$videoID);
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$sts = null;
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if(preg_match('|"sts":([0-9]{4,}),"|i', $webPage, $matches)) {
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$sts = $matches[1];
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}
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foreach(array('vevo', 'embedded', 'detailpage') as $elKey) {
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$query = http_build_query(array(
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'c' => 'web',
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'el' => $elKey,
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'hl' => 'en_US',
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'sts' => $sts,
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'cver' => 'html5',
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'eurl' => "https://youtube.googleapis.com/v/{$videoID}",
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'html5' => '1',
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'iframe' => '1',
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'authuser' => '1',
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'video_id' => $videoID,
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));
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if($this->is_Ok($videoData = $this->curlGet("http://www.youtube.com/get_video_info?{$query}"))) {
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parse_str($videoData, $videoData);
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break;
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}
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}
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if(isset($videoData['status']) && $videoData['status'] !== 'fail') {
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$vInfo['Title'] = $videoData['title'];
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$vInfo['ChannelName'] = $videoData['author'];
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$vInfo['ChannelId'] = $videoData['ucid'];
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$vInfo['Thumbnail'] = str_replace('default', 'maxresdefault', $videoData['thumbnail_url']);
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$vInfo['Duration'] = $videoData['length_seconds'];
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//$vInfo['Rating'] = $videoData['avg_rating'];
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}
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if (isset($videoData['url_encoded_fmt_stream_map']) && isset($videoData['adaptive_fmts'])) {
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$draft1 = explode(',',$videoData['url_encoded_fmt_stream_map']);
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$draft2 = explode(',',$videoData['adaptive_fmts']);
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foreach ($draft1 as $key) {
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$draftLink[] = $key;
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}
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foreach ($draft2 as $key) {
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$draftLink[] = $key;
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}
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foreach($draftLink as $dlink) {
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parse_str($dlink,$mLink[]);
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}
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if (isset($mLink[0]['s'])) {
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$instructions = $this->get_instructions($webPage);
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}
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foreach($mLink as $linker) {
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if(isset($linker['s'])) {
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$linkData[] = array(
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'url' => preg_replace('@(https\:\/\/)[^\.]+(\.googlevideo\.com)@', 'https://redirector$2', $linker['url']).'&signature='.$this->sig_decipher($linker['s'], $instructions).'&title='.$this->clean_name($videoData['title']),
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'itag' => $linker['itag'],
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'type' => isset($this->itag_info[$linker['itag']]) ? $this->itag_info[$linker['itag']] : 'Unknown'
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);
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} else {
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$linkData[] = array(
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'url' => preg_replace('@(https\:\/\/)[^\.]+(\.googlevideo\.com)@', 'https://redirector$2', $linker['url']).'&title='.$this->clean_name($videoData['title']),
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'itag' => $linker['itag'],
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'type' => isset($this->itag_info[$linker['itag']]) ? $this->itag_info[$linker['itag']] : 'Unknown'
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);
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}
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}
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}
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if (!empty($vInfo)) {
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$returnData['info'] = $vInfo;
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}if (!empty($linkData)) {
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$returnData['dl'] = $linkData;
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}
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return $returnData;
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}
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protected function curlGet($url) {
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if(in_array('curl', get_loaded_extensions())){
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$appSettings = parse_ini_file('../config/config.ini',true);
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$ch = curl_init($url);
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curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (X11; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0');
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
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curl_setopt($ch, CURLOPT_HEADER, 0);
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//curl_setopt($ch, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4);
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if($appSettings["Proxy"]["type"]) {
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curl_setopt($ch, CURLOPT_PROXY, $appSettings["Proxy"]["type"]."://".$appSettings["Proxy"]["domain"].":".$appSettings["Proxy"]["port"]);
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curl_setopt($ch, CURLOPT_PROXYUSERPWD, $appSettings["Proxy"]["username"].":".$appSettings["Proxy"]["password"]);
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}
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curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
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curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
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$result = curl_exec($ch);
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curl_close($ch);
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return $result;
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}
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return FALSE;
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}
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private function is_Ok($var) {
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if(!preg_match('|status=fail|i',$var)) {
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return true;
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}
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}
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private function extractId($str) {
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if(preg_match('/[a-z0-9_-]{11}/i', $str, $matches)){
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return $matches[0];
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}
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return FALSE;
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}
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private function get_instructions($html) {
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$playerPattern = '/"assets":.+?"js":\s*("[^"]+")/';
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if(preg_match($playerPattern, $html, $matches) && is_string($_player = json_decode($matches[1])) && strlen($_player) >= 1) {
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$playerLink = substr($_player, 0, 2) == '//' ? "https:{$_player}" : "https://www.youtube.com{$_player}";
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$cache_player = $this->cache_dir.'/.ht-'.md5($_player);
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if(file_exists($cache_player)) {
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return unserialize(file_get_contents($cache_player));
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} else {
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$js_code = $this->curlGet($playerLink);
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$instructions = $this->sig_js_decode($js_code);
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if($instructions){
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if(file_exists($this->cache_dir) && is_writeable($this->cache_dir))
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file_put_contents($cache_player, serialize($instructions));
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return $instructions;
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}
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}
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}
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return false;
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}
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private function clean_name($name) {
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$special_chars = array(".","?", "[", "]", "/", "\\", "=", "<", ">", ":", ";", ",", "'", "\"", "&", "$", "#", "*", "(", ")", "|", "~", "`", "!", "{", "}", "%", "+", chr(0));
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$filename = str_replace($special_chars,' ',$name);
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$filename = preg_replace( "#\x{00a0}#siu", ' ', $filename );
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$filename = str_replace( array( '%20', '+', ' '), '-', $filename );
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$filename = preg_replace( '/[\r\n\t -]+/', '-', $filename );
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$filename = trim( $filename, '.-_' );
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return $filename;
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}
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private function sig_decipher($signature, $instructions) {
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foreach($instructions as $opt){
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$command = $opt[0];
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$value = $opt[1];
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if($command == 'swap'){
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$temp = $signature[0];
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$signature[0] = $signature[$value % strlen($signature)];
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$signature[$value] = $temp;
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} elseif($command == 'splice'){
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$signature = substr($signature, $value);
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} elseif($command == 'reverse'){
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$signature = strrev($signature);
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}
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}
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return trim($signature);
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}
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private function sig_js_decode($file){
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$script = $this->getBetween($file, 'a=a.split("");', ';return a.join("")');
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$script = str_replace(array("a,","\n"), array(',',''), $script);
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$script2= $this->getBetween($file, 'var ' . substr($script, 0, 2).'={', '};');
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$script2= str_replace('a,b', 'a', $script2);
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$script = str_replace(substr($script, 0, 2).'.', '', $script);
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$script = str_replace('(', '', $script);
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$script = str_replace(')', '', $script);
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$script_ex= explode(";", $script);
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$script2_ex = explode("\n", $script2);
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for($i = 0; $i < count($script2_ex); $i++) {
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$tmp = isset($script2_ex[$i]) ? explode(':', $script2_ex[$i]) : [];
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$n = isset($tmp[0]) ? $tmp[0] : '';
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$m = isset($tmp[1]) ? $tmp[1] : '';
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$tempS[$n] = $m;
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}
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for($i = 0; $i < count($script_ex); $i++) {
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$tmp = isset($script_ex[$i]) ? explode(',', $script_ex[$i]) : [];
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$a = isset($tmp[0]) ? $tmp[0] : '';
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$b = isset($tmp[1]) ? $tmp[1] : '';
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$deKey[] = $this->createCommad($a, $b, $tempS);
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}
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return $deKey;
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}
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private function createCommad($value, $num, $source) {
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$result = '';
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if (isset($source[$value]) && mb_strpos($source[$value], 'reverse')) {
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$result = array('reverse', '');
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} elseif (isset($source[$value]) && mb_strpos($source[$value], 'a.splice')) {
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$result = array('splice', $num);
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} else {
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$result = array('swap', $num);
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}
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return $result;
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}
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private function getBetween($content, $start, $end) {
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$r = explode($start, $content);
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if (isset($r[1])) {
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$r = explode($end, $r[1]);
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return $r[0];
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}
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return '';
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}
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}
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