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First working version
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c0ldplasma committed Jul 5, 2020
1 parent 191d1fe commit 4127eb2
Showing 1 changed file with 12 additions and 250 deletions.
262 changes: 12 additions & 250 deletions xExtension-TwitterResolver/extension.php
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Original file line number Diff line number Diff line change
@@ -1,42 +1,21 @@
<?php

/**
* Class YouTubeExtension
* Class TwitterResolverExtension
*
* Latest version can be found at https://github.com/kevinpapst/freshrss-youtube
* Latest version can be found at https://github.com/c0ldplasma/freshrss-twitterresolver
*
* @author Kevin Papst
* @author C0ldPlasma
*/
class YouTubeExtension extends Minz_Extension
class TwitterResolverExtension extends Minz_Extension
{
/**
* Video player width
* @var int
*/
protected $width = 560;
/**
* Video player height
* @var int
*/
protected $height = 315;
/**
* Whether we display the original feed content
* @var bool
*/
protected $showContent = false;
/**
* Switch to enable the Youtube No-Cookie domain
* @var bool
*/
protected $useNoCookie = false;

/**
* Initialize this extension
*/
public function init()
{
$this->registerHook('entry_before_display', array($this, 'embedYouTubeVideo'));
$this->registerHook('check_url_before_add', array($this, 'convertYoutubeFeedUrl'));
$this->registerTranslates();
}

Expand All @@ -48,233 +27,16 @@ public function convertYoutubeFeedUrl($url)
{
$matches = [];

if (preg_match('#^https?://www\.youtube\.com/channel/([0-9a-zA-Z_-]{6,36})#', $url, $matches) === 1) {
return 'https://www.youtube.com/feeds/videos.xml?channel_id=' . $matches[1];
}

if (preg_match('#^https?://www\.youtube\.com/user/([0-9a-zA-Z_-]{6,36})#', $url, $matches) === 1) {
return 'https://www.youtube.com/feeds/videos.xml?user=' . $matches[1];
if (preg_match('#^https?://t\.co/([0-9a-zA-Z_-]{1,64})#', $url, $matches) === 1) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HEADER, true);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$a = curl_exec($ch);
$url = curl_getinfo($ch, CURLINFO_EFFECTIVE_URL);
}

return $url;
}

/**
* Initializes the extension configuration, if the user context is available.
* Do not call that in your extensions init() method, it can't be used there.
*/
public function loadConfigValues()
{
if (!class_exists('FreshRSS_Context', false) || null === FreshRSS_Context::$user_conf) {
return;
}

if (FreshRSS_Context::$user_conf->yt_player_width != '') {
$this->width = FreshRSS_Context::$user_conf->yt_player_width;
}
if (FreshRSS_Context::$user_conf->yt_player_height != '') {
$this->height = FreshRSS_Context::$user_conf->yt_player_height;
}
if (FreshRSS_Context::$user_conf->yt_show_content != '') {
$this->showContent = (bool)FreshRSS_Context::$user_conf->yt_show_content;
}
if (FreshRSS_Context::$user_conf->yt_nocookie != '') {
$this->useNoCookie = (bool)FreshRSS_Context::$user_conf->yt_nocookie;
}
}

/**
* Returns the width in pixel for the youtube player iframe.
* You have to call loadConfigValues() before this one, otherwise you get default values.
*
* @return int
*/
public function getWidth()
{
return $this->width;
}

/**
* Returns the height in pixel for the youtube player iframe.
* You have to call loadConfigValues() before this one, otherwise you get default values.
*
* @return int
*/
public function getHeight()
{
return $this->height;
}

/**
* Returns whether this extensions displays the content of the youtube feed.
* You have to call loadConfigValues() before this one, otherwise you get default values.
*
* @return bool
*/
public function isShowContent()
{
return $this->showContent;
}

/**
* Returns if this extension should use youtube-nocookie.com instead of youtube.com.
* You have to call loadConfigValues() before this one, otherwise you get default values.
*
* @return bool
*/
public function isUseNoCookieDomain()
{
return $this->useNoCookie;
}

/**
* Inserts the YouTube video iframe into the content of an entry, if the entries link points to a YouTube watch URL.
*
* @param FreshRSS_Entry $entry
* @return mixed
*/
public function embedYouTubeVideo($entry)
{
$link = $entry->link();

if (preg_match('#^https?://www\.youtube\.com/watch\?v=|/videos/watch/[0-9a-f-]{36}$#', $link) !== 1) {
return $entry;
}

$this->loadConfigValues();

if (stripos($entry->content(), '<iframe class="youtube-plugin-video"') !== false) {
return $entry;
}
if (stripos($link, 'www.youtube.com/watch?v=') !== false) {
$html = $this->getHtmlContentForLink($entry, $link);
}
else { //peertube
$html = $this->getHtmlPeerTubeContentForLink($entry, $link);
}

$entry->_content($html);

return $entry;
}

/**
* Returns an HTML <iframe> for a given Youtube watch URL (www.youtube.com/watch?v=)
*
* @param string $link
* @return string
*/
public function getHtmlContentForLink($entry, $link)
{
$domain = 'www.youtube.com';
if ($this->useNoCookie) {
$domain = 'www.youtube-nocookie.com';
}
$url = str_replace('//www.youtube.com/watch?v=', '//'.$domain.'/embed/', $link);
$url = str_replace('http://', 'https://', $url);

$html = $this->getHtml($entry, $url);

return $html;
}

/**
* Returns an HTML <iframe> for a given PeerTube watch URL
*
* @param string $link
* @return string
*/
public function getHtmlPeerTubeContentForLink($entry, $link)
{
$url = str_replace('/watch', '/embed', $link);
$html = $this->getHtml($entry, $url);

return $html;
}

/**
* Returns an HTML <iframe> for a given URL for the configured width and height, with content ignored, appended or formated.
*
* @param string $url
* @return string
*/
public function getHtml($entry, $url)
{
$content = '';

$iframe = '<iframe class="youtube-plugin-video"
style="height: ' . $this->height . 'px; width: ' . $this->width . 'px;"
width="' . $this->width . '"
height="' . $this->height . '"
src="' . $url . '"
frameborder="0"
allowFullScreen></iframe>';

if ($this->showContent) {
$doc = new DOMDocument();
$doc->encoding = 'UTF-8';
$doc->recover = true;
$doc->strictErrorChecking = false;

if ($doc->loadHTML('<?xml encoding="utf-8" ?>' . $entry->content()))
{
$xpath = new DOMXpath($doc);

$titles = $xpath->evaluate("//*[@class='enclosure-title']");
$thumbnails = $xpath->evaluate("//*[@class='enclosure-thumbnail']/@src");
$descriptions = $xpath->evaluate("//*[@class='enclosure-description']");

$content = '<div class="enclosure">';

// We hide the title so it doesn't appear in the final article, which would be redundant with the RSS article title,
// but we keep it in the content anyway, so RSS clients can extract it if needed.
if ($titles->length > 0) {
$content .= '<p class="enclosure-title" hidden>' . $titles[0]->nodeValue . '</p>';
}

// We hide the thumbnail so it doesn't appear in the final article, which would be redundant with the YouTube player preview,
// but we keep it in the content anyway, so RSS clients can extract it to display a preview where it wants (in article listing,
// by example, like with Reeder).
if ($thumbnails->length > 0) {
$content .= '<p hidden><img class="enclosure-thumbnail" src="' . $thumbnails[0]->nodeValue . '" alt=""/></p>';
}

$content .= $iframe;

if ($descriptions->length > 0) {
$content .= '<p class="enclosure-description">' . nl2br(htmlentities($descriptions[0]->nodeValue)) . '</p>';
}

$content .= "</div>\n";
}
else {
$content = $iframe . $entry->content();
}
}
else {
$content = $iframe;
}

return $content;
}

/**
* This function is called by FreshRSS when the configuration page is loaded, and when configuration is saved.
* - We save configuration in case of a post.
* - We (re)load configuration in all case, so they are in-sync after a save and before a page load.
*/
public function handleConfigureAction()
{
$this->registerTranslates();

if (Minz_Request::isPost()) {
FreshRSS_Context::$user_conf->yt_player_height = (int)Minz_Request::param('yt_height', '');
FreshRSS_Context::$user_conf->yt_player_width = (int)Minz_Request::param('yt_width', '');
FreshRSS_Context::$user_conf->yt_show_content = (bool)Minz_Request::param('yt_show_content', 0);
FreshRSS_Context::$user_conf->yt_nocookie = (int)Minz_Request::param('yt_nocookie', 0);
FreshRSS_Context::$user_conf->save();
}

$this->loadConfigValues();
}
}

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