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Harden OEmbed link discovery

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- Check OEmbed call return code before storing response
- Stop at first successful OEmbed response
This commit is contained in:
Hypolite Petovan 2021-02-08 02:03:48 -05:00
parent 5354a2d5d0
commit 0927bb5f2c
1 changed files with 12 additions and 14 deletions
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26
src/Content/OEmbed.php
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@ -98,21 +98,19 @@ class OEmbed
// try oembed autodiscovery
$html_text = DI::httpRequest()->fetch($embedurl, 15, 'text/*');
if ($html_text) {
$dom = @DOMDocument::loadHTML($html_text);
if ($dom) {
$dom = new DOMDocument();
if ($dom->loadHTML($html_text)) {
$xpath = new DOMXPath($dom);
$entries = $xpath->query("//link[@type='application/json+oembed']");
foreach ($entries as $e) {
$href = $e->getAttributeNode('href')->nodeValue;
$json_string = DI::httpRequest()->fetch($href . '&maxwidth=' . $a->videowidth);
break;
}
$entries = $xpath->query("//link[@type='text/json+oembed']");
foreach ($entries as $e) {
$href = $e->getAttributeNode('href')->nodeValue;
$json_string = DI::httpRequest()->fetch($href . '&maxwidth=' . $a->videowidth);
break;
foreach (
$xpath->query("//link[@type='application/json+oembed'] | //link[@type='text/json+oembed']")
as $link)
{
$href = $link->getAttributeNode('href')->nodeValue;
$result = DI::httpRequest()->fetchFull($href . '&maxwidth=' . $a->videowidth);
if ($result->getReturnCode() === 200) {
$json_string = $result->getBody();
break;
}
}
}
}