friendica_2021.01_tupambae_.../mod/parse_url.php

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<?php
require_once('library/HTML5/Parser.php');
function parse_url_content(&$a) {
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$url = trim($_GET['url']);
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$template = "<a href=\"%s\" >%s</a>%s";
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if($url)
$s = fetch_url($url);
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else {
echo '';
killme();
}
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if(! $s) {
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echo sprintf($template,$url,$url,'');
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killme();
}
$dom = HTML5_Parser::parse($s);
if(! $dom)
return $ret;
$items = $dom->getElementsByTagName('title');
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if($items) {
foreach($items as $item) {
$title = $item->textContent;
break;
}
}
$items = $dom->getElementsByTagName('p');
if($items) {
foreach($items as $item) {
$text = $item->textContent;
$text = strip_tags($text);
if(strlen($text) < 100)
continue;
$text = substr($text,0,250) . '...' ;
break;
}
}
if(strlen($text)) {
$text = '<br />' . $text;
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}
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echo sprintf($template,$url,$title,$text);
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killme();
}