core/Zotlabs/Daemon/Gprobe.php

<?php /** @file */

namespace Zotlabs\Daemon;

use Zotlabs\Lib\Libzot;
use Zotlabs\Lib\Webfinger;
use Zotlabs\Lib\Zotfinger;

// performs zot_finger on $argv[1], which is a hex_encoded webbie/reddress

class Gprobe {
	static public function run($argc, $argv) {

		if ($argc != 2)
			return;

		$url = hex2bin($argv[1]);
		$is_webbie = false;
		$r = null;

		if (filter_var($url, FILTER_VALIDATE_EMAIL)) {
			$is_webbie = true;

			$r = q("select * from hubloc where hubloc_addr = '%s' and hubloc_network = 'zot6' limit 1",
				dbesc($url)
			);
		}
		elseif (filter_var($url, FILTER_VALIDATE_URL)) {
			$r = q("select * from hubloc where hubloc_id_url = '%s' and hubloc_network = 'zot6' limit 1",
				dbesc($url)
			);
		}

		if (!$r) {
			if ($is_webbie) {
				$url = Webfinger::zot_url(punify($url));
			}

			if ($url) {
				$zf = Zotfinger::exec($url, null);
				if (is_array($zf) && array_path_exists('signature/signer', $zf) && $zf['signature']['signer'] === $url && intval($zf['signature']['header_valid'])) {
					Libzot::import_xchan($zf['data']);
				}
			}
		}

		return;

	}
}