1 files changed, 77 insertions, 0 deletions
diff --git a/mod/dfrn_notify.php b/mod/dfrn_notify.php
new file mode 100644
index 000000000..c078afe38
--- /dev/null
+++ b/mod/dfrn_notify.php
@@ -0,0 +1,77 @@
+<?php
+
+
+
+
+
+function dfrn_notify_post(&$a) {
+
+	$dfrn_id = notags(trim($_POST['dfrn_id']));
+	$challenge = notags(trim($_POST['challenge']));
+	$data = $_POST['data'];
+
+	$r = q("SELECT * FROM `challenge` WHERE `dfrn-id` = '%s' AND `challenge` = '%s' LIMIT 1",
+		dbesc($dfrn_id),
+		dbesc($challenge)
+	);
+	if(! count($r))
+		xml_status(3);
+
+	$r = q("DELETE FROM `challenge` WHERE `dfrn-id` = '%s' AND `challenge` = '%s' LIMIT 1",
+		dbesc($dfrn_id),
+		dbesc($challenge)
+	);
+
+
+
+
+
+
+
+}
+
+
+
+
+
+
+
+
+
+
+
+
+function dfrn_notify_content(&$a) {
+
+	if(x($_GET,'dfrn_id')) {
+		// initial communication from external contact
+		$hash = random_string();
+
+		$status = 0;
+
+		$r = q("DELETE FROM `challenge` WHERE `expire` < " . intval(time()));
+
+		$r = q("INSERT INTO `challenge` ( `challenge`, `dfrn-id`, `expire` )
+			VALUES( '%s', '%s', '%s') ",
+			dbesc($hash),
+			dbesc(notags(trim($_GET['dfrn_id']))),
+			intval(time() + 60 )
+		);
+
+		$r = q("SELECT * FROM `contact` WHERE `issued-id` = '%s' AND `blocked` = 0 LIMIT 1",
+			dbesc($_GET['dfrn_id']));
+		if((! count($r)) || (! strlen($r[0]['prvkey'])))
+			$status = 1;
+
+		$challenge = '';
+
+		openssl_private_encrypt($hash,$challenge,$r[0]['prvkey']);
+
+		echo '<?xml version=1.0" encoding="UTF-8"?><dfrn_notify><status>' .$status . '</status><dfrn_id>' . $_GET['dfrn_id'] . '</dfrn_id>'
+			. '<challenge>' . $challenge . '</challenge></dfrn_notify>' . "\r\n" ;
+		session_write_close();
+		exit;
+		
+	}
+
+}
+\ No newline at end of file