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<?php
if (isset($_POST['domain']) && isset($_POST['tld'])){
if(preg_match('/\Ahttps?:\/\/([-\w\.]+)+(:\d+)?(\/([\w\/_\.]*(\?\S+)?)?)?\Z/', 'http://'.$_POST['domain']) && !empty($_POST['domain']) && !empty($_POST['tld']))
{
$whois=array();
$whois['.de']['server']='whois.denic.de';
$whois['.de']['string']='Status: free';
$whois['.com']['server']='whois.crsnic.net';
$whois['.com']['string']='No match for';
$whois['.net']['server']='whois.crsnic.net';
$whois['.net']['string']='No match for';
$whois['.org']['server']='whois.publicinterestregistry.net';
$whois['.org']['string']='NOT FOUND';
$whois['.info']['server']='whois.afilias.net';
$whois['.info']['string']='NOT FOUND';
$whois['.biz']['server']='whois.nic.biz';
$whois['.biz']['string']='Not found';
$whois['.ag']['server']='whois.nic.ag';
$whois['.ag']['string']='NOT FOUND';
$whois['.am']['server']='whois.nic.am';
$whois['.am']['string']='No match';
$whois['.as']['server']='whois.nic.as';
$whois['.as']['string']='Domain Not Found';
$whois['.at']['server']='whois.nic.at';
$whois['.at']['string']='nothing found';
$whois['.be']['server']='whois.dns.be';
$whois['.be']['string']='Status: AVAILABLE';
$whois['.cd']['server']='whois.cd';
$whois['.cd']['string']='No match';
$whois['.ch']['server']='whois.nic.ch';
$whois['.ch']['string']='not have an entry';
$whois['.cx']['server']='whois.nic.cx';
$whois['.cx']['string']='Status: Not Registered';
$whois['.dk']['server']='whois.dk-hostmaster.dk';
$whois['.dk']['string']='No entries found';
$whois['.it']['server']='whois.nic.it';
$whois['.it']['string']='Status: AVAILABLE';
$whois['.li']['server']='whois.nic.li';
$whois['.li']['string']='do not have an entry';
$whois['.lu']['server']='whois.dns.lu';
$whois['.lu']['string']='No such domain';
$whois['.nu']['server']='whois.nic.nu';
$whois['.nu']['string']='NO MATCH for';
$whois['.ru']['server']='whois.ripn.net';
$whois['.ru']['string']='No entries found';
$whois['.uk.com']['server']='whois.centralnic.com';
$whois['.uk.com']['string']='No match for';
$whois['.eu.com']['server']='whois.centralnic.com';
$whois['.eu.com']['string']='No match';
$whois['.ws']['server']='whois.nic.ws';
$whois['.ws']['string']='No match for';
$domain=str_replace('www.', '', $_POST['domain']);
$report = '';
$check=fsockopen($whois[$_POST['tld']]['server'], 43);
fputs($check, $domain.$_POST['tld']."\r\n");
while(!feof($check))
{
$report=$report.fgets($check, 128);
}
fclose($check);
if(str_contains($report, $whois[$_POST['tld']]['string']))
{
?>
<div class="container mt-3 alert alert-success" title="<?= $report ?>">
<?php
print('Die Domain <b>'.$_POST['domain'].$_POST['tld'].'</b> ist frei');
}
else
{?>
<div class="container mt-3 alert alert-danger" title="<?= $report ?>">
<?php
print('Die Domain <b>'.$_POST['domain'].$_POST['tld'].'</b> ist belegt');
}?></div>
<?php
}
}
?>
<div class="content container">
<h2>Domain Check</h2>
<form method="post" action="?" class="mt-3">
<div class="input-group">
<input class="form-control" type="text" style="width: 60%" required name="domain" placeholder="domain" value="<?= $_POST['domain'] ?? "" ?>">
<select class="form-select" aria-label="Domain Endung auswählen" name="tld" required>
<option value="<?= $_POST['tld'] ?? "" ?>"><?= $_POST['tld'] ?? "Wähle eine TLD" ?></option>
<option value=".de">.de</option>
<option value=".com">.com</option>
<option value=".net">.net</option>
<option value=".org">.org</option>
<option value=".info">.info</option>
<option value=".biz">.biz</option>
<option value=".ag">.ag</option>
<option value=".am">.am</option>
<option value=".at">.at</option>
<option value=".be">.be</option>
<option value=".cd">.cd</option>
<option value=".cx">.cx</option>
<option value=".dk">.dk</option>
<option value=".it">.it</option>
<option value=".lu">.lu</option>
<option value=".nu">.nu</option>
<option value=".ru">.ru</option>
</select>
<input type="submit" value="Abfragen" class="btn btn-primary">
</div>
</form>
</div>
<hr class="m-3">
<div class="container rounded mt-3" style="background-color: white">
<h4 style="color: black" class="m-0">Source Code:</h4>
<hr class="m-0" style="color: black">
<?php
echo highlight_string((file_get_contents("pages/domaincheck.php")), true);
?>
</div>