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<?php |
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declare(strict_types=1); |
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/* |
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+-----------------------------------------------------------------------------+ |
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| PHPPackage - Domain Checker |
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+-----------------------------------------------------------------------------+ |
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| Copyright (c)2018 (http://github.com/phppackage/domaincheck) |
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+-----------------------------------------------------------------------------+ |
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| This source file is subject to MIT License |
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| that is bundled with this package in the file LICENSE. |
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| |
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| If you did not receive a copy of the license and are unable to |
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| obtain it through the world-wide-web, please send an email |
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| to [email protected] so we can send you a copy immediately. |
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+-----------------------------------------------------------------------------+ |
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| Authors: |
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| Lawrence Cherone <[email protected]> |
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+-----------------------------------------------------------------------------+ |
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*/ |
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namespace PHPPackage\DomainCheck; |
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class Whois |
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{ |
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/** |
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* @var |
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*/ |
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private $tlds = []; |
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/** |
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* |
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*/ |
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public function __construct(array $tlds = []) |
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{ |
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$this->tlds = $tlds; |
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} |
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/** |
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* |
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*/ |
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private function filterServers(array $servers, array $tlds = []): array |
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{ |
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$tlds = array_merge($this->tlds, $tlds); |
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if (empty($tlds)) { |
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return $servers; |
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} |
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return array_values(array_filter($servers, function ($value) use ($tlds) { |
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return in_array($value['tld'], $tlds); |
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})); |
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} |
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/** |
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* |
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*/ |
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public function servers(array $tlds = [], string $servers_file = 'whois-servers.json'): array |
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{ |
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$path = __DIR__.'/'.$servers_file; |
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if (!file_exists($path) || !is_readable($path)) { |
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throw new \RuntimeException('whois-servers.json does not exist or is not readable'); |
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} |
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$json = json_decode(file_get_contents($path), true); |
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if (empty($json) || !is_array($json)) { |
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throw new \RuntimeException('invalid whois-servers.json file'); |
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} |
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return $this->filterServers($json, $tlds); |
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} |
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/** |
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* Socket connection to whois server. |
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* |
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* @param string $domain |
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* @param string $server |
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* @param string $findText |
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* @return bool |
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*/ |
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public function check($domain, $server, $pattern): bool |
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{ |
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// open socket to whois server |
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$socket = @fsockopen($server, 43); |
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if ($socket === false) { |
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return false; |
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} |
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// send the requested domain name |
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fputs($socket, $domain."\r\n"); |
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// read and store the server response |
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$response = ' :'; |
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while (!feof($socket)) { |
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$response .= fgets($socket, 512); |
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} |
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// close the connection |
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fclose($socket); |
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// check the response stream whether the domain is available |
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return stripos($response, $pattern) ? true : false; |
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} |
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} |
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phppackage /
domain-check
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