bitPickups/friendica_2019-12_sharedHosting_hotFix
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reciprocal verification on notify, poll

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This commit is contained in:
Mike Macgirvin 2010-08-05 02:57:03 -07:00
commit 40a06771ff
5 changed files with 41 additions and 6 deletions
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12
include/poller.php
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@ -84,11 +84,21 @@ echo "XML: " . $xml;
$res = simplexml_load_string($xml);
if((intval($res->status) != 0) || (! strlen($res->challenge)) || ($res->dfrn_id != $contact['dfrn-id']))
if((intval($res->status) != 0) || (! strlen($res->challenge)) || (! strlen($res->dfrn_id)))
continue;
$postvars = array();
$sent_dfrn_id = hex2bin($res->dfrn_id);
$final_dfrn_id = '';
openssl_public_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['pubkey']);
$final_dfrn_id = substr($final_dfrn_id, 0, strpos($final_dfrn_id, '.'));
if($final_dfrn_id != $contact['dfrn-id']) {
// did not decode properly - cannot trust this site
continue;
}
$postvars['dfrn_id'] = $contact['dfrn-id'];
$challenge = hex2bin($res->challenge);