231 lines
7.7 KiB
PHP
231 lines
7.7 KiB
PHP
<?php
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/**
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* RssBridgeYoutube
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* Returns the newest videos
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* WARNING: to parse big playlists (over ~90 videos), you need to edit simple_html_dom.php:
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* change: define('MAX_FILE_SIZE', 600000);
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* into: define('MAX_FILE_SIZE', 900000); (or more)
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*/
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class YoutubeBridge extends BridgeAbstract {
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const NAME = 'YouTube Bridge';
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const URI = 'https://www.youtube.com/';
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const CACHE_TIMEOUT = 10800; // 3h
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const DESCRIPTION = 'Returns the 10 newest videos by username/channel/playlist or search';
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const MAINTAINER = 'mitsukarenai';
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const PARAMETERS = array(
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'By username' => array(
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'u' => array(
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'name' => 'username',
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'exampleValue' => 'test',
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'required' => true
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)
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),
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'By channel id' => array(
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'c' => array(
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'name' => 'channel id',
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'exampleValue' => '15',
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'required' => true
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)
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),
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'By playlist Id' => array(
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'p' => array(
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'name' => 'playlist id',
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'exampleValue' => '15'
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)
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),
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'Search result' => array(
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's' => array(
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'name' => 'search keyword',
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'exampleValue' => 'test'
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),
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'pa' => array(
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'name' => 'page',
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'type' => 'number',
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'exampleValue' => 1
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)
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)
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);
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private function ytBridgeQueryVideoInfo($vid, &$author, &$desc, &$time){
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$html = $this->ytGetSimpleHTMLDOM(self::URI . "watch?v=$vid");
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// Skip unavailable videos
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if(!strpos($html->innertext, 'IS_UNAVAILABLE_PAGE')) {
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return;
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}
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foreach($html->find('script') as $script) {
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$data = trim($script->innertext);
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if(strpos($data, '{') !== 0)
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continue; // Wrong script
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$json = json_decode($data);
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if(!isset($json->itemListElement))
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continue; // Wrong script
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$author = $json->itemListElement[0]->item->name;
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}
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if(!is_null($html->find('#watch-description-text', 0)))
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$desc = $html->find('#watch-description-text', 0)->innertext;
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if(!is_null($html->find('meta[itemprop=datePublished]', 0)))
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$time = strtotime($html->find('meta[itemprop=datePublished]', 0)->getAttribute('content'));
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}
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private function ytBridgeAddItem($vid, $title, $author, $desc, $time){
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$item = array();
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$item['id'] = $vid;
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$item['title'] = $title;
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$item['author'] = $author;
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$item['timestamp'] = $time;
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$item['uri'] = self::URI . 'watch?v=' . $vid;
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$thumbnailUri = str_replace('/www.', '/img.', self::URI) . 'vi/' . $vid . '/0.jpg';
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$item['content'] = '<a href="' . $item['uri'] . '"><img src="' . $thumbnailUri . '" /></a><br />' . $desc;
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$this->items[] = $item;
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}
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private function ytBridgeParseXmlFeed($xml) {
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foreach($xml->find('entry') as $element) {
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$title = $this->ytBridgeFixTitle($element->find('title', 0)->plaintext);
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$author = $element->find('name', 0)->plaintext;
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$desc = $element->find('media:description', 0)->innertext;
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// Make sure the description is easy on the eye :)
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$desc = htmlspecialchars($desc);
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$desc = nl2br($desc);
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$desc = preg_replace('/(http[s]{0,1}\:\/\/[a-zA-Z0-9.\/\?\&=\-_]{4,})/ims',
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'<a href="$1" target="_blank">$1</a> ',
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$desc);
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$vid = str_replace('yt:video:', '', $element->find('id', 0)->plaintext);
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$time = strtotime($element->find('published', 0)->plaintext);
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if(strpos($vid, 'googleads') === false)
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$this->ytBridgeAddItem($vid, $title, $author, $desc, $time);
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}
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$this->feedName = $this->ytBridgeFixTitle($xml->find('feed > title', 0)->plaintext); // feedName will be used by getName()
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}
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private function ytBridgeParseHtmlListing($html, $element_selector, $title_selector, $add_parsed_items = true) {
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$limit = $add_parsed_items ? 10 : INF;
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$count = 0;
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foreach($html->find($element_selector) as $element) {
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if($count < $limit) {
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$author = '';
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$desc = '';
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$time = 0;
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$vid = str_replace('/watch?v=', '', $element->find('a', 0)->href);
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$vid = substr($vid, 0, strpos($vid, '&') ?: strlen($vid));
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$title = $this->ytBridgeFixTitle($element->find($title_selector, 0)->plaintext);
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if($title != '[Private Video]' && strpos($vid, 'googleads') === false) {
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if ($add_parsed_items) {
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$this->ytBridgeQueryVideoInfo($vid, $author, $desc, $time);
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$this->ytBridgeAddItem($vid, $title, $author, $desc, $time);
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}
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$count++;
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}
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}
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}
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return $count;
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}
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private function ytBridgeFixTitle($title) {
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// convert both Ӓ and " to UTF-8
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return html_entity_decode($title, ENT_QUOTES, 'UTF-8');
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}
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private function ytGetSimpleHTMLDOM($url){
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return getSimpleHTMLDOM($url,
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$header = array(),
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$opts = array(),
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$lowercase = true,
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$forceTagsClosed = true,
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$target_charset = DEFAULT_TARGET_CHARSET,
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$stripRN = false,
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$defaultBRText = DEFAULT_BR_TEXT,
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$defaultSpanText = DEFAULT_SPAN_TEXT);
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}
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public function collectData(){
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$xml = '';
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$html = '';
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$url_feed = '';
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$url_listing = '';
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if($this->getInput('u')) { /* User and Channel modes */
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$this->request = $this->getInput('u');
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$url_feed = self::URI . 'feeds/videos.xml?user=' . urlencode($this->request);
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$url_listing = self::URI . 'user/' . urlencode($this->request) . '/videos';
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} elseif($this->getInput('c')) {
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$this->request = $this->getInput('c');
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$url_feed = self::URI . 'feeds/videos.xml?channel_id=' . urlencode($this->request);
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$url_listing = self::URI . 'channel/' . urlencode($this->request) . '/videos';
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}
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if(!empty($url_feed) && !empty($url_listing)) {
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if($xml = $this->ytGetSimpleHTMLDOM($url_feed)) {
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$this->ytBridgeParseXmlFeed($xml);
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} elseif($html = $this->ytGetSimpleHTMLDOM($url_listing)) {
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$this->ytBridgeParseHtmlListing($html, 'li.channels-content-item', 'h3');
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} else {
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returnServerError("Could not request YouTube. Tried:\n - $url_feed\n - $url_listing");
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}
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} elseif($this->getInput('p')) { /* playlist mode */
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$this->request = $this->getInput('p');
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$url_feed = self::URI . 'feeds/videos.xml?playlist_id=' . urlencode($this->request);
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$url_listing = self::URI . 'playlist?list=' . urlencode($this->request);
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$html = $this->ytGetSimpleHTMLDOM($url_listing)
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or returnServerError("Could not request YouTube. Tried:\n - $url_listing");
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$item_count = $this->ytBridgeParseHtmlListing($html, 'tr.pl-video', '.pl-video-title a', false);
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if ($item_count <= 15 && ($xml = $this->ytGetSimpleHTMLDOM($url_feed))) {
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$this->ytBridgeParseXmlFeed($xml);
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} else {
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$this->ytBridgeParseHtmlListing($html, 'tr.pl-video', '.pl-video-title a');
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}
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$this->feedName = 'Playlist: ' . str_replace(' - YouTube', '', $html->find('title', 0)->plaintext); // feedName will be used by getName()
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usort($this->items, function ($item1, $item2) {
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return $item2['timestamp'] - $item1['timestamp'];
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});
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} elseif($this->getInput('s')) { /* search mode */
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$this->request = $this->getInput('s');
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$page = 1;
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if($this->getInput('pa'))
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$page = (int)preg_replace('/[^0-9]/', '', $this->getInput('pa'));
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$url_listing = self::URI
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. 'results?search_query='
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. urlencode($this->request)
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. '&page='
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. $page
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. '&filters=video&search_sort=video_date_uploaded';
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$html = $this->ytGetSimpleHTMLDOM($url_listing)
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or returnServerError("Could not request YouTube. Tried:\n - $url_listing");
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$this->ytBridgeParseHtmlListing($html, 'div.yt-lockup', 'h3 > a');
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$this->feedName = 'Search: ' . str_replace(' - YouTube', '', $html->find('title', 0)->plaintext); // feedName will be used by getName()
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} else { /* no valid mode */
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returnClientError("You must either specify either:\n - YouTube
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username (?u=...)\n - Channel id (?c=...)\n - Playlist id (?p=...)\n - Search (?s=...)");
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}
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}
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public function getName(){
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// Name depends on queriedContext:
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switch($this->queriedContext) {
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case 'By username':
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case 'By channel id':
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case 'By playlist Id':
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case 'Search result':
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return $this->feedName . ' - YouTube'; // We already know it's a bridge, right?
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default:
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return parent::getName();
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}
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}
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}
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