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https://github.com/YunoHost-Apps/hubzilla_ynh.git
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95 lines
2.7 KiB
PHP
95 lines
2.7 KiB
PHP
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<?php
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/**
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* Name: Standard Embeds
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* Description: Allow unfiltered access to embeds from top media providers
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* Version: 1.0
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* Author: Mike Macgirvin
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* Maintainer: none
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*/
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function std_embeds_load() {
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Zotlabs\Extend\Hook::register('oembed_action','addon/std_embeds/std_embeds.php','std_embeds_action');
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Zotlabs\Extend\Hook::register('html2bb_video','addon/std_embeds/std_embeds.php','std_embeds_html2bb_video');
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Zotlabs\Extend\Hook::register('bb_translate_video','addon/std_embeds/std_embeds.php','std_embeds_bb_translate_video');
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}
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function std_embeds_unload() {
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Zotlabs\Extend\Hook::unregister_by_file('addon/std_embeds/std_embeds.php');
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}
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function std_embeds_action(&$arr) {
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if($arr['action'] === 'block')
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return;
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$m = parse_url($arr['url']);
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$realurl = '';
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// Prevent hostname forgeries to get around host restrictions by providing our own URL replacements.
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// So https://youtube.com.badguy.com/watch/111111111 and https://foobar.com/youtube.com/watch/111111111 and
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// https://foobar.com/?fakeurl=https://youtube.com/watch/111111 will not be allowed unfiltered access.
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$s = array(
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'youtube' => 'https://youtube.com',
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'youtu.be' => 'https://youtube.com',
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'vimeo' => 'https://vimeo.com',
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'soundcloud' => 'https://soundcloud.com'
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);
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foreach($s as $k => $v) {
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if(strpos($m['host'],$k) !== false) {
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logger('found: ' . $k);
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$realurl = $v;
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break;
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}
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}
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if($realurl) {
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$arr['url'] = $realurl . (($m['path']) ? '/' . $m['path'] : '') . (($m['query']) ? '?' . $m['query'] : '') . (($m['fragment']) ? '#' . $m['fragment'] : '');
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$arr['action'] = 'allow';
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logger('allowed');
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}
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}
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function std_embeds_html2bb_video(&$x) {
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$s = $x['string'];
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$s = preg_replace('#<object[^>]+>(.*?)https?://www.youtube.com/((?:v|cp)/[A-Za-z0-9\-_=]+)(.*?)</object>#ism',
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'[embed]https://www.youtube.com/watch?v=$2[/embed]', $s);
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$s = preg_replace('#<iframe[^>](.*?)https?://www.youtube.com/embed/([A-Za-z0-9\-_=]+)(.*?)</iframe>#ism',
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'[embed]https://www.youtube.com/watch?v=$2[/embed]', $s);
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$s = preg_replace('#<iframe[^>](.*?)https?://player.vimeo.com/video/([0-9]+)(.*?)</iframe>#ism',
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'[embed]https://player.vimeo.com/video/$2[/embed]', $s);
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$x['string'] = $s;
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}
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function std_embeds_bb_translate_video(&$x) {
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$s = $x['string'];
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$matches = null;
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$r = preg_match_all("/\[video\](.*?)\[\/video\]/ism",$s,$matches,PREG_SET_ORDER);
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if($r) {
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foreach($matches as $mtch) {
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if((stristr($mtch[1],'youtube')) || (stristr($mtch[1],'youtu.be')))
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$s = str_replace($mtch[0],'[embed]' . $mtch[1] . '[/embed]',$s);
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elseif(stristr($mtch[1],'vimeo'))
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$s = str_replace($mtch[0],'[embed]' . $mtch[1] . '[/embed]',$s);
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}
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}
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$x['string'] = $s;
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}
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