77 lines
1.4 KiB
PHP
77 lines
1.4 KiB
PHP
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<?php
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function dfrn_notify_post(&$a) {
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$dfrn_id = notags(trim($_POST['dfrn_id']));
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$challenge = notags(trim($_POST['challenge']));
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$data = $_POST['data'];
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$r = q("SELECT * FROM `challenge` WHERE `dfrn-id` = '%s' AND `challenge` = '%s' LIMIT 1",
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dbesc($dfrn_id),
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dbesc($challenge)
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);
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if(! count($r))
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xml_status(3);
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$r = q("DELETE FROM `challenge` WHERE `dfrn-id` = '%s' AND `challenge` = '%s' LIMIT 1",
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dbesc($dfrn_id),
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dbesc($challenge)
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);
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}
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function dfrn_notify_content(&$a) {
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if(x($_GET,'dfrn_id')) {
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// initial communication from external contact
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$hash = random_string();
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$status = 0;
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$r = q("DELETE FROM `challenge` WHERE `expire` < " . intval(time()));
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$r = q("INSERT INTO `challenge` ( `challenge`, `dfrn-id`, `expire` )
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VALUES( '%s', '%s', '%s') ",
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dbesc($hash),
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dbesc(notags(trim($_GET['dfrn_id']))),
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intval(time() + 60 )
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);
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$r = q("SELECT * FROM `contact` WHERE `issued-id` = '%s' AND `blocked` = 0 LIMIT 1",
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dbesc($_GET['dfrn_id']));
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if((! count($r)) || (! strlen($r[0]['prvkey'])))
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$status = 1;
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$challenge = '';
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openssl_private_encrypt($hash,$challenge,$r[0]['prvkey']);
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echo '<?xml version=1.0" encoding="UTF-8"?><dfrn_notify><status>' .$status . '</status><dfrn_id>' . $_GET['dfrn_id'] . '</dfrn_id>'
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. '<challenge>' . $challenge . '</challenge></dfrn_notify>' . "\r\n" ;
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session_write_close();
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exit;
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}
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}
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