Issue 14692: Prevent loops with remote servers

This commit is contained in:
Michael 2025-01-15 07:51:30 +00:00
parent bb252e326f
commit 1eaab5e410

View file

@ -604,13 +604,14 @@ class HTTPSignature
/**
* Gets a signer from a given HTTP request
*
* @param string $content
* @param array $http_headers
* @param string $content
* @param array $http_headers
* @param ?boolean $update true = always update, false = never update, null = update when not found or outdated
*
* @return string|null|false Signer
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
*/
public static function getSigner(string $content, array $http_headers)
public static function getSigner(string $content, array $http_headers, bool $update = null)
{
if (empty($http_headers['HTTP_SIGNATURE'])) {
DI::logger()->debug('No HTTP_SIGNATURE header');
@ -700,7 +701,7 @@ class HTTPSignature
return false;
}
$key = self::fetchKey($sig_block['keyId'], $actor);
$key = self::fetchKey($sig_block['keyId'], $actor, $update);
if (empty($key)) {
DI::logger()->info('Empty key');
return false;
@ -802,17 +803,18 @@ class HTTPSignature
/**
* fetches a key for a given id and actor
*
* @param string $id
* @param string $actor
* @param string $id
* @param string $actor
* @param ?boolean $update true = always update, false = never update, null = update when not found or outdated
*
* @return array with actor url and public key
* @throws \Exception
*/
private static function fetchKey(string $id, string $actor): array
private static function fetchKey(string $id, string $actor, bool $update = null): array
{
$url = (strpos($id, '#') ? substr($id, 0, strpos($id, '#')) : $id);
$profile = APContact::getByURL($url);
$profile = APContact::getByURL($url, $update);
if (!empty($profile)) {
DI::logger()->info('Taking key from id', ['id' => $id]);
return ['url' => $url, 'pubkey' => $profile['pubkey'], 'type' => $profile['type']];