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index.php
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="description" content="Simple PHP script to lookup entries of A, AAAA, NS, CNAME, MX, SOA and TXT records">
<meta name="author" content="HQWEB">
<title>Simple DNS Lookup</title>
<link rel="icon" href="assets/favicon.ico"><!-- https://www.iconperk.com/iconsets/magicons -->
<link href="assets/css/bootstrap.min.css" rel="stylesheet"><!-- Bootstrap core CSS -->
<link href="assets/css/style.css" rel="stylesheet"><!-- Custom styles for this template -->
</head>
<body>
<div class="container">
<div class="header clearfix">
<nav>
<ul class="nav nav-pills pull-right">
<li role="presentation" ><a href="/">Outils</a></li>
<li role="presentation" class="active"><a href="/dns-lookup">DNS Lookup</a></li>
</ul>
</nav>
<h3 class="text-muted">Simple DNS Lookup</h3>
</div>
<?php
// ini_set('display_errors', 1); // Uncomment to display errors
// ini_set('display_startup_errors', 1); // Uncomment to display errors
// error_reporting(E_ALL); // Uncomment to display errors
// If domain is included in URL, prefill form with domain or if form is submitted display domain in it
if( isset($_POST['domain']) )
{
$value = $_POST['domain'];
}
else
{
$value = $_GET['domain'];
}
// Parse url to extract host
$posted_domain = $_POST['domain'];
$parsed_url = parse_url($posted_domain);
if (array_key_exists('host', $parsed_url))
{
$domain = $parsed_url['host'];
}
else
{
$domain = $posted_domain;
}
// get records
$dns_a = dns_get_record($domain, DNS_A);
$dns_a_ttl = $dns_a[0]['ttl'];
$dns_ns = dns_get_record($domain, DNS_NS);
$dns_ns_ttl = $dns_ns[0]['ttl'];
$dns_mx = dns_get_record($domain, DNS_MX);
$dns_mx_ttl = $dns_mx[0]['ttl'];
$dns_cname = dns_get_record($domain, DNS_CNAME);
$dns_cname_ttl = $dns_mx[0]['ttl'];
$dns_soa = dns_get_record($domain, DNS_SOA);
$dns_soa_ttl = $dns_soa[0]['ttl'];
$dns_soa_email = explode(".", $dns_soa[0]['rname']);
$dns_soa_email = $dns_soa_email[0].'@'.$dns_soa_email[1].'.'.$dns_soa_email[2];
$dns_soa_serial = $dns_soa[0]['serial'];
$dns_soa_refresh = $dns_soa[0]['refresh'];
$dns_soa_retry = $dns_soa[0]['retry'];
$dns_soa_expire = $dns_soa[0]['expire'];
$dns_soa_minimum_ttl = $dns_soa[0]['minimum-ttl'];
$dns_txt = dns_get_record($domain, DNS_TXT);
$dns_txt_ttl = $dns_txt[0]['ttl'];
$dns_aaaa = dns_get_record($domain, DNS_AAAA);
$dns_aaaa_ttl = $dns_aaaa[0]['ttl'];
// Page URL : check if "?domain=" is in the URL to adapt http_referer content
if( (strpos($_SERVER['HTTP_REFERER'], '?domain=') !== false) )
{
$page_url_domain = $_SERVER['HTTP_REFERER'];
}
else
{
$page_url_domain = $_SERVER['HTTP_REFERER'] . "?domain=" . $value;
}
?>
<div class="jumbotron">
<form action="./" method="post">
<div class="form-group">
<input
type="search"
class="form-control input-lg text-center"
name ="domain"
id="domain"
placeholder="https://www.domain.com/page.html or domain.com"
value="<?=$value?>"
requirerd
>
<button type="submit" name="submit" class="btn btn-primary btn-lg">Lookup</button>
</div>
</form>
</div>
<?php if(isset($_POST['submit'])) { ?> <!-- IF FORM SUBMITTED -->
<div class="row marketing">
<h4>Direct link : <a href="<?=$page_url_domain?>"><?=$page_url_domain?></a></h4>
<table class="table table-striped table-bordered table-responsive">
<thead class="bg-primary">
<tr>
<th class="text-center">Records</th>
<th class="text-center">TTL</th>
<th>Entries for <?=$domain?></th>
</tr>
</thead>
<!-- A RECORD -->
<tr>
<td class="vert-align text-center"><h4><span class="label label-primary">A</span></h4></td>
<?php if(empty($dns_a) != null){ ?> <!-- IF NO A RECORD -->
<td class="vert-align text-center">NA</td>
<td class="warning"><h4>No record</h4></td>
<?php } else { ?> <!-- ELSE A RECORD -->
<td class="vert-align text-center"><?=$dns_a_ttl?></td>
<td class="success">
<?php foreach($dns_a as $value)
{
echo "<h4>";
$ipapi = file_get_contents('http://ip-api.com/json/' . $value['ip'] . '?fields=4195842'); // https://ip-api.com/docs/api:json#test
$ipapidc = json_decode($ipapi, true);
$country_code_flag = $ipapidc['countryCode']; // Uppercase
echo mb_convert_encoding( '&#' . ( 127397 + ord( $country_code_flag[0] ) ) . ';', 'UTF-8', 'HTML-ENTITIES');
echo mb_convert_encoding( '&#' . ( 127397 + ord( $country_code_flag[1] ) ) . ';', 'UTF-8', 'HTML-ENTITIES');
echo(" " . $ipapidc['countryCode'] . " · " . $value['ip']. " · <small>(<b>ISP</b> " . $ipapidc['isp']. " <b>ORG</b> " . $ipapidc['org']. " <b>AS</b> " . $ipapidc['asname']);
echo ")</small></h4>";
}
?>
</td>
<?php } ?> <!-- ENDIF A RECORD -->
</tr>
<!-- A RECORD -->
<!-- AAAA RECORD -->
<tr>
<td class="vert-align text-center"><h4><span class="label label-info">AAAA</span></h4></td>
<?php if(empty($dns_aaaa) != null){ ?> <!-- IF NO AAAA RECORD -->
<td class="vert-align text-center">NA</td>
<td class="warning"><h4>No record</h4></td>
<?php } else { ?> <!-- ELSE AAAA RECORD -->
<td class="vert-align text-center"><?=$dns_aaaa_ttl?></td>
<td class="success">
<?php foreach($dns_aaaa as $value)
{
echo "<h4>";
$ipapi = file_get_contents('http://ip-api.com/json/' . $value['ipv6'] . '?fields=4195842');
$ipapidc = json_decode($ipapi, true);
$country_code_flag = $ipapidc['countryCode']; // Uppercase
echo mb_convert_encoding( '&#' . ( 127397 + ord( $country_code_flag[0] ) ) . ';', 'UTF-8', 'HTML-ENTITIES');
echo mb_convert_encoding( '&#' . ( 127397 + ord( $country_code_flag[1] ) ) . ';', 'UTF-8', 'HTML-ENTITIES');
echo(" ". $ipapidc['countryCode'] . " · " . $value['ipv6']. " ·<small> <b>ISP</b> ". $ipapidc['isp']. " · <b>ORG</b> ". $ipapidc['org']. " · <b>ASNAME</b> ". $ipapidc['asname']);
echo "</small></h4>";
}
?>
</td>
<?php } ?> <!-- ENDIF AAAA NO RECORD -->
</tr>
<!-- AAAA RECORD -->
<!-- NS RECORD -->
<tr>
<td class="vert-align text-center"><h4><span class="label label-success">NS</span></h4></td>
<?php if(empty($dns_ns) != null){ ?> <!-- IF NO NS RECORD -->
<td class="vert-align text-center">NA</td>
<td class="warning"><h4>No record</h4></td>
<?php } else { ?> <!-- ELSE NS RECORD -->
<td class="vert-align text-center"><?=$dns_ns_ttl?></td>
<td class="success">
<?php foreach($dns_ns as $value)
{
echo "<h4>";
echo($value['target']);
echo " (";
$ipapi = file_get_contents('http://ip-api.com/json/' . gethostbyname($value['target']) . '?fields=2');
$ipapidc = json_decode($ipapi, true);
$country_code_flag = $ipapidc['countryCode']; // Uppercase
echo mb_convert_encoding( '&#' . ( 127397 + ord( $country_code_flag[0] ) ) . ';', 'UTF-8', 'HTML-ENTITIES');
echo mb_convert_encoding( '&#' . ( 127397 + ord( $country_code_flag[1] ) ) . ';', 'UTF-8', 'HTML-ENTITIES');
echo(" " . $ipapidc['countryCode'] . " · " . gethostbyname($value['target']));
echo ")</h4>";
}
?>
</td>
<?php } ?> <!-- ENDIF NS RECORD -->
</tr>
<!-- NS RECORD -->
<!-- MX RECORD -->
<tr>
<td class="vert-align text-center"><h4><span class="label label-danger">MX</span></h4></td>
<?php if(empty($dns_mx) != null){ ?> <!-- IF NO MX RECORD -->
<td class="vert-align text-center">NA</td>
<td class="warning"><h4>No record</h4></td>
<?php } else { ?> <!-- ELSE MX RECORD -->
<td class="vert-align text-center"><?=$dns_mx_ttl?></td>
<td class="success">
<?php foreach($dns_mx as $value)
{
echo "<h4>";
echo("[" . $value['pri'] . "] " . $value['target'] . " (");
$ipapi = file_get_contents('http://ip-api.com/json/' . gethostbyname($value['target']) . '?fields=2');
$ipapidc = json_decode($ipapi, true);
$country_code_flag = $ipapidc['countryCode']; // Uppercase
echo mb_convert_encoding( '&#' . ( 127397 + ord( $country_code_flag[0] ) ) . ';', 'UTF-8', 'HTML-ENTITIES');
echo mb_convert_encoding( '&#' . ( 127397 + ord( $country_code_flag[1] ) ) . ';', 'UTF-8', 'HTML-ENTITIES');
echo(" " . $ipapidc['countryCode'] . " · " . gethostbyname($value['target']));
echo ")</h4>";
}
?>
</td>
<?php } ?> <!-- ENDIF MX RECORD -->
</tr>
<!-- MX RECORD -->
<!-- CNAME RECORD -->
<tr>
<td class="vert-align text-center"><h4><span class="label label-default">CNAME</span></h4></td>
<?php if(empty($dns_cname) != null){ ?> <!-- IF NO CNAME RECORD -->
<td class="vert-align text-center">NA</td>
<td class="warning"><h4>No record</h4></td>
<?php } else { ?> <!-- ELSE CNAME RECORD -->
<td class="vert-align text-center"><?=$dns_cname_ttl?></td>
<td class="success">
<?php foreach($dns_cname as $value)
{
echo "<h4>";
echo($value['target']);
echo " (";
$ipapi = file_get_contents('http://ip-api.com/json/' . gethostbyname($value['target']) . '?fields=2');
$ipapidc = json_decode($ipapi, true);
$country_code_flag = $ipapidc['countryCode']; // Uppercase
echo mb_convert_encoding( '&#' . ( 127397 + ord( $country_code_flag[0] ) ) . ';', 'UTF-8', 'HTML-ENTITIES');
echo mb_convert_encoding( '&#' . ( 127397 + ord( $country_code_flag[1] ) ) . ';', 'UTF-8', 'HTML-ENTITIES');
echo(" " . $ipapidc['countryCode'] . " · " . gethostbyname($value['target']));
echo ")</h4>";
}
?>
</td>
<?php } ?> <!-- ENDIF CNAME RECORD -->
</tr>
<!-- CNAME RECORD -->
<!-- SOA RECORD -->
<tr>
<td class="vert-align text-center"><h4><span class="label label-warning">SOA</span></h4></td>
<?php if(empty($dns_soa) != null){ ?> <!-- IF NO RECORD -->
<td class="vert-align text-center">NA</td>
<td class="warning"><h4>No record</h4></td>
<?php } else { ?> <!-- ELSE SOA RECORD -->
<td class="vert-align text-center"><?=$dns_soa_ttl?></td>
<td class="success">
<h4>Email : <?=$dns_soa_email?></h4>
<h4>Serial : <?=$dns_soa_serial?></h4>
<h4>Refresh : <?=$dns_soa_refresh?></h4>
<h4>Retry : <?=$dns_soa_retry?></h4>
<h4>Expire : <?=$dns_soa_expire?></h4>
<h4>Minimum TTL : <?=$dns_soa_minimum_ttl?></h4>
</td>
<?php } ?> <!-- ENDIF SOA RECORD -->
</tr>
<!-- SOA RECORD -->
<!-- TXT RECORD -->
<tr>
<td class="vert-align text-center"><h4><span class="label label-default">TXT</span></h4></td>
<?php if(empty($dns_txt) != null){ ?> <!-- IF NO TXT RECORD -->
<td class="vert-align text-center">NA</td>
<td class="warning"><h4>No record</h4></td>
<?php } else { ?> <!-- ELSE TXT RECORD -->
<td class="vert-align text-center"><?php echo($dns_txt[0]['ttl']); ?></td>
<td class="success">
<?php foreach($dns_txt as $value)
{
echo "<h4>";
$dns_txt_value = wordwrap($value['txt'], 80, "<br/>\n", true);
echo $dns_txt_value;
echo "</h4>";
}
?>
</td>
<?php } ?> <!-- ENDIF TXT RECORD -->
</tr>
<!-- TXT RECORD -->
</table>
</div>
<?php } ?> <!-- ENDIF FORM SUBMITTED -->
<footer class="footer">
<p class="text-center">© Simple DNS Lookup - <a href="https://github.com/iSurcouf/Simple-DNS-Lookup">Sourcecode on GitHub</a></p>
</footer>
</div> <!-- /container -->
</body>
</html>