rss-bridge/bridges/YoutubeBridge.php

444 lines
18 KiB
PHP

<?php
/**
* RssBridgeYoutube
* Returns the newest videos
* WARNING: to parse big playlists (over ~90 videos), you need to edit simple_html_dom.php:
* change: define('MAX_FILE_SIZE', 600000);
* into: define('MAX_FILE_SIZE', 900000); (or more)
*/
class YoutubeBridge extends BridgeAbstract
{
const NAME = 'YouTube Bridge';
const URI = 'https://www.youtube.com/';
const CACHE_TIMEOUT = 10800; // 3h
const DESCRIPTION = 'Returns the 10 newest videos by username/channel/playlist or search';
const MAINTAINER = 'em92';
const PARAMETERS = [
'By username' => [
'u' => [
'name' => 'username',
'exampleValue' => 'LinusTechTips',
'required' => true
]
],
'By channel id' => [
'c' => [
'name' => 'channel id',
'exampleValue' => 'UCw38-8_Ibv_L6hlKChHO9dQ',
'required' => true
]
],
'By custom name' => [
'custom' => [
'name' => 'custom name',
'exampleValue' => 'LinusTechTips',
'required' => true
]
],
'By playlist Id' => [
'p' => [
'name' => 'playlist id',
'exampleValue' => 'PL8mG-RkN2uTzJc8N0EoyhdC54prvBBLpj',
'required' => true
]
],
'Search result' => [
's' => [
'name' => 'search keyword',
'exampleValue' => 'LinusTechTips',
'required' => true
],
'pa' => [
'name' => 'page',
'type' => 'number',
'title' => 'This option is not work anymore, as YouTube will always return the same page',
'exampleValue' => 1
]
],
'global' => [
'duration_min' => [
'name' => 'min. duration (minutes)',
'type' => 'number',
'title' => 'Minimum duration for the video in minutes',
'exampleValue' => 5
],
'duration_max' => [
'name' => 'max. duration (minutes)',
'type' => 'number',
'title' => 'Maximum duration for the video in minutes',
'exampleValue' => 10
]
]
];
private $feedName = '';
private $feeduri = '';
private $channel_name = '';
// This took from repo BetterVideoRss of VerifiedJoseph.
const URI_REGEX = '/(https?:\/\/(?:www\.)?(?:[a-zA-Z0-9-.]{2,256}\.[a-z]{2,20})(\:[0-9]{2 ,4})?(?:\/[a-zA-Z0-9@:%_\+.,~#"\'!?&\/\/=\-*]+|\/)?)/ims'; //phpcs:ignore
private function ytBridgeQueryVideoInfo($vid, &$author, &$desc, &$time)
{
$html = $this->ytGetSimpleHTMLDOM(self::URI . "watch?v=$vid", true);
// Skip unavailable videos
if (strpos($html->innertext, 'IS_UNAVAILABLE_PAGE') !== false) {
return;
}
$elAuthor = $html->find('span[itemprop=author] > link[itemprop=name]', 0);
if (!is_null($elAuthor)) {
$author = $elAuthor->getAttribute('content');
}
$elDatePublished = $html->find('meta[itemprop=datePublished]', 0);
if (!is_null($elDatePublished)) {
$time = strtotime($elDatePublished->getAttribute('content'));
}
$jsonData = $this->getJSONData($html);
$jsonData = $jsonData->contents->twoColumnWatchNextResults->results->results->contents;
$videoSecondaryInfo = null;
foreach ($jsonData as $item) {
if (isset($item->videoSecondaryInfoRenderer)) {
$videoSecondaryInfo = $item->videoSecondaryInfoRenderer;
break;
}
}
if (!$videoSecondaryInfo) {
returnServerError('Could not find videoSecondaryInfoRenderer. Error at: ' . $vid);
}
if (isset($videoSecondaryInfo->description)) {
foreach ($videoSecondaryInfo->description->runs as $description) {
if (isset($description->navigationEndpoint)) {
$metadata = $description->navigationEndpoint->commandMetadata->webCommandMetadata;
$web_type = $metadata->webPageType;
$url = $metadata->url;
$text = '';
switch ($web_type) {
case 'WEB_PAGE_TYPE_UNKNOWN':
$url_components = parse_url($url);
if (isset($url_components['query']) && strpos($url_components['query'], '&q=') !== false) {
parse_str($url_components['query'], $params);
$url = urldecode($params['q']);
}
$text = $url;
break;
case 'WEB_PAGE_TYPE_WATCH':
case 'WEB_PAGE_TYPE_BROWSE':
$url = 'https://www.youtube.com' . $url;
$text = $description->text;
break;
}
$desc .= "<a href=\"$url\" target=\"_blank\">$text</a>";
} else {
$desc .= nl2br($description->text);
}
}
}
}
private function ytBridgeAddItem($vid, $title, $author, $desc, $time, $thumbnail = '')
{
$item = [];
$item['id'] = $vid;
$item['title'] = $title;
$item['author'] = $author;
$item['timestamp'] = $time;
$item['uri'] = self::URI . 'watch?v=' . $vid;
if (!$thumbnail) {
$thumbnail = '0'; // Fallback to default thumbnail if there aren't any provided.
}
$thumbnailUri = str_replace('/www.', '/img.', self::URI) . 'vi/' . $vid . '/' . $thumbnail . '.jpg';
$item['content'] = '<a href="' . $item['uri'] . '"><img src="' . $thumbnailUri . '" /></a><br />' . $desc;
$this->items[] = $item;
}
private function ytBridgeParseXmlFeed($xml)
{
foreach ($xml->find('entry') as $element) {
$title = $this->ytBridgeFixTitle($element->find('title', 0)->plaintext);
$author = $element->find('name', 0)->plaintext;
$desc = $element->find('media:description', 0)->innertext;
// Make sure the description is easy on the eye :)
$desc = htmlspecialchars($desc);
$desc = nl2br($desc);
$desc = preg_replace(
self::URI_REGEX,
'<a href="$1" target="_blank">$1</a> ',
$desc
);
$vid = str_replace('yt:video:', '', $element->find('id', 0)->plaintext);
$time = strtotime($element->find('published', 0)->plaintext);
if (strpos($vid, 'googleads') === false) {
$this->ytBridgeAddItem($vid, $title, $author, $desc, $time);
}
}
$this->feedName = $this->ytBridgeFixTitle($xml->find('feed > title', 0)->plaintext); // feedName will be used by getName()
}
private function ytBridgeFixTitle($title)
{
// convert both &#1234; and &quot; to UTF-8
return html_entity_decode($title, ENT_QUOTES, 'UTF-8');
}
private function ytGetSimpleHTMLDOM($url, $cached = false)
{
$header = [
'Accept-Language: en-US'
];
$opts = [];
$lowercase = true;
$forceTagsClosed = true;
$target_charset = DEFAULT_TARGET_CHARSET;
$stripRN = false;
$defaultBRText = DEFAULT_BR_TEXT;
$defaultSpanText = DEFAULT_SPAN_TEXT;
if ($cached) {
return getSimpleHTMLDOMCached(
$url,
86400,
$header,
$opts,
$lowercase,
$forceTagsClosed,
$target_charset,
$stripRN,
$defaultBRText,
$defaultSpanText
);
}
return getSimpleHTMLDOM(
$url,
$header,
$opts,
$lowercase,
$forceTagsClosed,
$target_charset,
$stripRN,
$defaultBRText,
$defaultSpanText
);
}
private function getJSONData($html)
{
$scriptRegex = '/var ytInitialData = (.*?);<\/script>/';
preg_match($scriptRegex, $html, $matches) or returnServerError('Could not find ytInitialData');
return json_decode($matches[1]);
}
private function parseJSONListing($jsonData)
{
$duration_min = $this->getInput('duration_min') ?: -1;
$duration_min = $duration_min * 60;
$duration_max = $this->getInput('duration_max') ?: INF;
$duration_max = $duration_max * 60;
if ($duration_max < $duration_min) {
returnClientError('Max duration must be greater than min duration!');
}
// $vid_list = '';
foreach ($jsonData as $item) {
$wrapper = null;
if (isset($item->gridVideoRenderer)) {
$wrapper = $item->gridVideoRenderer;
} elseif (isset($item->videoRenderer)) {
$wrapper = $item->videoRenderer;
} elseif (isset($item->playlistVideoRenderer)) {
$wrapper = $item->playlistVideoRenderer;
} elseif (isset($item->richItemRenderer)) {
$wrapper = $item->richItemRenderer->content->videoRenderer;
} else {
continue;
}
$vid = $wrapper->videoId;
$title = $wrapper->title->runs[0]->text;
if (isset($wrapper->ownerText)) {
$this->channel_name = $wrapper->ownerText->runs[0]->text;
} elseif (isset($wrapper->shortBylineText)) {
$this->channel_name = $wrapper->shortBylineText->runs[0]->text;
}
$author = '';
$desc = '';
$time = '';
// The duration comes in one of the formats:
// hh:mm:ss / mm:ss / m:ss
// 01:03:30 / 15:06 / 1:24
$durationText = 0;
if (isset($wrapper->lengthText)) {
$durationText = $wrapper->lengthText->simpleText;
} else {
foreach ($wrapper->thumbnailOverlays as $overlay) {
if (isset($overlay->thumbnailOverlayTimeStatusRenderer)) {
$durationText = $overlay->thumbnailOverlayTimeStatusRenderer->text;
break;
}
}
}
if (preg_match('/([\d]{1,2})\:([\d]{1,2})\:([\d]{2})/', $durationText)) {
$durationText = preg_replace('/([\d]{1,2})\:([\d]{1,2})\:([\d]{2})/', '$1:$2:$3', $durationText);
} else {
$durationText = preg_replace('/([\d]{1,2})\:([\d]{2})/', '00:$1:$2', $durationText);
}
sscanf($durationText, '%d:%d:%d', $hours, $minutes, $seconds);
$duration = $hours * 3600 + $minutes * 60 + $seconds;
if ($duration < $duration_min || $duration > $duration_max) {
continue;
}
// $vid_list .= $vid . ',';
$this->ytBridgeQueryVideoInfo($vid, $author, $desc, $time);
$this->ytBridgeAddItem($vid, $title, $author, $desc, $time);
}
}
public function collectData()
{
$xml = '';
$html = '';
$url_feed = '';
$url_listing = '';
if ($this->getInput('u')) { /* User and Channel modes */
$this->request = $this->getInput('u');
$url_feed = self::URI . 'feeds/videos.xml?user=' . urlencode($this->request);
$url_listing = self::URI . 'user/' . urlencode($this->request) . '/videos';
} elseif ($this->getInput('c')) {
$this->request = $this->getInput('c');
$url_feed = self::URI . 'feeds/videos.xml?channel_id=' . urlencode($this->request);
$url_listing = self::URI . 'channel/' . urlencode($this->request) . '/videos';
} elseif ($this->getInput('custom')) {
$this->request = $this->getInput('custom');
$url_listing = self::URI . urlencode($this->request) . '/videos';
}
if (!empty($url_feed) || !empty($url_listing)) {
$this->feeduri = $url_listing;
if (!empty($this->getInput('custom'))) {
$html = $this->ytGetSimpleHTMLDOM($url_listing);
$jsonData = $this->getJSONData($html);
$url_feed = $jsonData->metadata->channelMetadataRenderer->rssUrl;
}
if (!$this->skipFeeds()) {
$html = $this->ytGetSimpleHTMLDOM($url_feed);
$this->ytBridgeParseXmlFeed($html);
} else {
if (empty($this->getInput('custom'))) {
$html = $this->ytGetSimpleHTMLDOM($url_listing);
$jsonData = $this->getJSONData($html);
}
$channel_id = '';
if (isset($jsonData->contents)) {
$channel_id = $jsonData->metadata->channelMetadataRenderer->externalId;
$jsonData = $jsonData->contents->twoColumnBrowseResultsRenderer->tabs[1];
$jsonData = $jsonData->tabRenderer->content->richGridRenderer->contents;
// $jsonData = $jsonData->itemSectionRenderer->contents[0]->gridRenderer->items;
$this->parseJSONListing($jsonData);
} else {
returnServerError('Unable to get data from YouTube. Username/Channel: ' . $this->request);
}
}
$this->feedName = str_replace(' - YouTube', '', $html->find('title', 0)->plaintext);
} elseif ($this->getInput('p')) { /* playlist mode */
// TODO: this mode makes a lot of excess video query requests.
// To make less requests, we need to cache following dictionary "videoId -> datePublished, duration"
// This cache will be used to find out, which videos to fetch
// to make feed of 15 items or more, if there a lot of videos published on that date.
$this->request = $this->getInput('p');
$url_feed = self::URI . 'feeds/videos.xml?playlist_id=' . urlencode($this->request);
$url_listing = self::URI . 'playlist?list=' . urlencode($this->request);
$html = $this->ytGetSimpleHTMLDOM($url_listing);
$jsonData = $this->getJSONData($html);
// TODO: this method returns only first 100 video items
// if it has more videos, playlistVideoListRenderer will have continuationItemRenderer as last element
$jsonData = $jsonData->contents->twoColumnBrowseResultsRenderer->tabs[0];
$jsonData = $jsonData->tabRenderer->content->sectionListRenderer->contents[0]->itemSectionRenderer;
$jsonData = $jsonData->contents[0]->playlistVideoListRenderer->contents;
$item_count = count($jsonData);
if ($item_count <= 15 && !$this->skipFeeds() && ($xml = $this->ytGetSimpleHTMLDOM($url_feed))) {
$this->ytBridgeParseXmlFeed($xml);
} else {
$this->parseJSONListing($jsonData);
}
$this->feedName = 'Playlist: ' . str_replace(' - YouTube', '', $html->find('title', 0)->plaintext); // feedName will be used by getName()
usort($this->items, function ($item1, $item2) {
if (!is_int($item1['timestamp']) && !is_int($item2['timestamp'])) {
$item1['timestamp'] = strtotime($item1['timestamp']);
$item2['timestamp'] = strtotime($item2['timestamp']);
}
return $item2['timestamp'] - $item1['timestamp'];
});
} elseif ($this->getInput('s')) { /* search mode */
$this->request = $this->getInput('s');
$url_listing = self::URI
. 'results?search_query='
. urlencode($this->request)
. '&sp=CAI%253D';
$html = $this->ytGetSimpleHTMLDOM($url_listing);
$jsonData = $this->getJSONData($html);
$jsonData = $jsonData->contents->twoColumnSearchResultsRenderer->primaryContents;
$jsonData = $jsonData->sectionListRenderer->contents;
foreach ($jsonData as $data) { // Search result includes some ads, have to filter them
if (isset($data->itemSectionRenderer->contents[0]->videoRenderer)) {
$jsonData = $data->itemSectionRenderer->contents;
break;
}
}
$this->parseJSONListing($jsonData);
$this->feeduri = $url_listing;
$this->feedName = 'Search: ' . $this->request; // feedName will be used by getName()
} else { /* no valid mode */
returnClientError("You must either specify either:\n - YouTube
username (?u=...)\n - Channel id (?c=...)\n - Playlist id (?p=...)\n - Search (?s=...)");
}
}
private function skipFeeds()
{
return ($this->getInput('duration_min') || $this->getInput('duration_max'));
}
public function getURI()
{
if (!is_null($this->getInput('p'))) {
return static::URI . 'playlist?list=' . $this->getInput('p');
} elseif ($this->feeduri) {
return $this->feeduri;
}
return parent::getURI();
}
public function getName()
{
// Name depends on queriedContext:
switch ($this->queriedContext) {
case 'By username':
case 'By channel id':
case 'By custom name':
case 'By playlist Id':
case 'Search result':
return htmlspecialchars_decode($this->feedName) . ' - YouTube'; // We already know it's a bridge, right?
default:
return parent::getName();
}
}
}