php - Whois 服务器不返回结果？

Question

嗨，我一直在弄乱我从网上获得的这个 Whois 脚本，并且一直在弄乱变量和数组，一直试图弄清楚为什么它不会返回 Google 和 Facebook 的 whois 结果(我测试了谷歌，因为这是显而易见的)，然后在了解到它与 Whois 垃圾邮件有关后测试了 facebook，并且人们添加了此脚本选择的 google.com 子域(同样发生在 facebook 上)...

完成作业后，我设法让它返回所有结果的列表(通过删除脚本中将所需的“=”.$domain 添加到域变量的部分。

在那之后，所有结果都返回了，我了解到脚本正在获取第一个结果的 Whois 服务器(这是一个 google.com.with.added.spam.com)，因此“google.com”可以在与“google.com.with.added.spam.com”相同的 whois 服务器上找不到，因此它返回空白。

为了修复它，我已经尝试了所有方法，从反转 preg_match_all 数组(以获取最后一个 whois 服务器)到编辑我能想到的所有变量..

如有任何帮助，我们将不胜感激。

提前致谢!!!

现在是代码:

<?php

$domain = $_GET['domain'];

// For the full list of TLDs/Whois servers see http://www.iana.org/domains/root/db/ and http://www.whois365.com/en/listtld/
$whoisservers = array(
    "ac" =>"whois.nic.ac",
    "ae" =>"whois.nic.ae",
    "aero"=>"whois.aero",
    "af" =>"whois.nic.af",
    "ag" =>"whois.nic.ag",
    "al" =>"whois.ripe.net",
    "am" =>"whois.amnic.net",
    "arpa" =>"whois.iana.org",
    "as" =>"whois.nic.as",
    "asia" =>"whois.nic.asia",
    "at" =>"whois.nic.at",
    "au" =>"whois.aunic.net",
    "az" =>"whois.ripe.net",
    "ba" =>"whois.ripe.net",
    "be" =>"whois.dns.be",
    "bg" =>"whois.register.bg",
    "bi" =>"whois.nic.bi",
    "biz" =>"whois.biz",
    "bj" =>"whois.nic.bj",
    "br" =>"whois.registro.br",
    "bt" =>"whois.netnames.net",
    "by" =>"whois.ripe.net",
    "bz" =>"whois.belizenic.bz",
    "ca" =>"whois.cira.ca",
    "cat" =>"whois.cat",
    "cc" =>"whois.nic.cc",
    "cd" =>"whois.nic.cd",
    "ch" =>"whois.nic.ch",
    "ci" =>"whois.nic.ci",
    "ck" =>"whois.nic.ck",
    "cl" =>"whois.nic.cl",
    "cn" =>"whois.cnnic.net.cn",
    "com" =>"whois.verisign-grs.com",
    "coop" =>"whois.nic.coop",
    "cx" =>"whois.nic.cx",
    "cy" =>"whois.ripe.net",
    "cz" =>"whois.nic.cz",
    "de" =>"whois.denic.de",
    "dk" =>"whois.dk-hostmaster.dk",
    "dm" =>"whois.nic.cx",
    "dz" =>"whois.ripe.net",
    "edu" =>"whois.educause.edu",
    "ee" =>"whois.eenet.ee",
    "eg" =>"whois.ripe.net",
    "es" =>"whois.ripe.net",
    "eu" =>"whois.eu",
    "fi" =>"whois.ficora.fi",
    "fo" =>"whois.ripe.net",
    "fr" =>"whois.nic.fr",
    "gb" =>"whois.ripe.net",
    "gd" =>"whois.adamsnames.com",
    "ge" =>"whois.ripe.net",
    "gg" =>"whois.channelisles.net",
    "gi" =>"whois2.afilias-grs.net",
    "gl" =>"whois.ripe.net",
    "gm" =>"whois.ripe.net",
    "gov" =>"whois.nic.gov",
    "gr" =>"whois.ripe.net",
    "gs" =>"whois.nic.gs",
    "gw" =>"whois.nic.gw",
    "gy" =>"whois.registry.gy",
    "hk" =>"whois.hkirc.hk",
    "hm" =>"whois.registry.hm",
    "hn" =>"whois2.afilias-grs.net",
    "hr" =>"whois.ripe.net",
    "hu" =>"whois.nic.hu",
    "ie" =>"whois.domainregistry.ie",
    "il" =>"whois.isoc.org.il",
    "in" =>"whois.inregistry.net",
    "info" =>"whois.afilias.net",
    "int" =>"whois.iana.org",
    "io" =>"whois.nic.io",
    "iq" =>"vrx.net",
    "ir" =>"whois.nic.ir",
    "is" =>"whois.isnic.is",
    "it" =>"whois.nic.it",
    "je" =>"whois.channelisles.net",
    "jobs" =>"jobswhois.verisign-grs.com",
    "jp" =>"whois.jprs.jp",
    "ke" =>"whois.kenic.or.ke",
    "kg" =>"www.domain.kg",
    "ki" =>"whois.nic.ki",
    "kr" =>"whois.nic.or.kr",
    "kz" =>"whois.nic.kz",
    "la" =>"whois.nic.la",
    "li" =>"whois.nic.li",
    "lt" =>"whois.domreg.lt",
    "lu" =>"whois.dns.lu",
    "lv" =>"whois.nic.lv",
    "ly" =>"whois.nic.ly",
    "ma" =>"whois.iam.net.ma",
    "mc" =>"whois.ripe.net",
    "md" =>"whois.ripe.net",
    "me" =>"whois.meregistry.net",
    "mg" =>"whois.nic.mg",
    "mil" =>"whois.nic.mil",
    "mn" =>"whois.nic.mn",
    "mobi" =>"whois.dotmobiregistry.net",
    "ms" =>"whois.adamsnames.tc",
    "mt" =>"whois.ripe.net",
    "mu" =>"whois.nic.mu",
    "museum" =>"whois.museum",
    "mx" =>"whois.nic.mx",
    "my" =>"whois.mynic.net.my",
    "na" =>"whois.na-nic.com.na",
    "name" =>"whois.nic.name",
    "net" =>"whois.verisign-grs.net",
    "nf" =>"whois.nic.nf",
    "nl" =>"whois.domain-registry.nl",
    "no" =>"whois.norid.no",
    "nu" =>"whois.nic.nu",
    "nz" =>"whois.srs.net.nz",
    "org" =>"whois.pir.org",
    "pl" =>"whois.dns.pl",
    "pm" =>"whois.nic.pm",
    "pr" =>"whois.uprr.pr",
    "pro" =>"whois.registrypro.pro",
    "pt" =>"whois.dns.pt",
    "re" =>"whois.nic.re",
    "ro" =>"whois.rotld.ro",
    "ru" =>"whois.ripn.net",
    "sa" =>"whois.nic.net.sa",
    "sb" =>"whois.nic.net.sb",
    "sc" =>"whois2.afilias-grs.net",
    "se" =>"whois.iis.se",
    "sg" =>"whois.nic.net.sg",
    "sh" =>"whois.nic.sh",
    "si" =>"whois.arnes.si",
    "sk" =>"whois.ripe.net",
    "sm" =>"whois.ripe.net",
    "st" =>"whois.nic.st",
    "su" =>"whois.ripn.net",
    "tc" =>"whois.adamsnames.tc",
    "tel" =>"whois.nic.tel",
    "tf" =>"whois.nic.tf",
    "th" =>"whois.thnic.net",
    "tj" =>"whois.nic.tj",
    "tk" =>"whois.dot.tk",
    "tl" =>"whois.nic.tl",
    "tm" =>"whois.nic.tm",
    "tn" =>"whois.ripe.net",
    "to" =>"whois.tonic.to",
    "tp" =>"whois.nic.tl",
    "tr" =>"whois.nic.tr",
    "travel" =>"whois.nic.travel",
    "tv" => "tvwhois.verisign-grs.com",
    "tw" =>"whois.twnic.net.tw",
    "ua" =>"whois.net.ua",
    "ug" =>"whois.co.ug",
    "uk" =>"whois.nic.uk",
    "us" =>"whois.nic.us",
    "uy" =>"nic.uy",
    "uz" =>"whois.cctld.uz",
    "va" =>"whois.ripe.net",
    "vc" =>"whois2.afilias-grs.net",
    "ve" =>"whois.nic.ve",
    "vg" =>"whois.adamsnames.tc",
    "wf" =>"whois.nic.wf",
    "ws" =>"whois.website.ws",
    "yt" =>"whois.nic.yt",
    "yu" =>"whois.ripe.net");

function LookupDomain($domain){
    global $whoisservers;
    $domain_parts = explode(".", $domain);
    $tld = strtolower(array_pop($domain_parts));
    $whoisserver = $whoisservers[$tld];
    if(!$whoisserver) {
        return "Error: No appropriate Whois server found for $domain domain!";
    }
    $result = QueryWhoisServer($whoisserver, $domain);
    if(!$result) {
        return "Error: No results retrieved from $whoisserver server for $domain domain!";
    }
    else {
        while(strpos($result, "Whois Server:") !== FALSE){
            preg_match("/Whois Server: (.*)/", $result, $matches);
            $secondary = $matches[1];
            if($secondary) {
                $result = QueryWhoisServer($secondary, $domain);
                $whoisserver = $secondary;
            }
        }
    }
    return "$domain domain lookup results from $whoisserver server:\n\n" . $result;
}

function LookupIP($ip) {
    $whoisservers = array(
        //"whois.afrinic.net", // Africa - returns timeout error :-(
        "whois.lacnic.net", // Latin America and Caribbean - returns data for ALL locations worldwide :-)
        "whois.apnic.net", // Asia/Pacific only
        "whois.arin.net", // North America only
        "whois.ripe.net" // Europe, Middle East and Central Asia only
    );
    $results = array();
    foreach($whoisservers as $whoisserver) {
        $result = QueryWhoisServer($whoisserver, $ip);
        if($result && !in_array($result, $results)) {
            $results[$whoisserver]= $result;
        }
    }
    $res = "RESULTS FOUND: " . count($results);
    foreach($results as $whoisserver=>$result) {
        $res .= "\n\n-------------\nLookup results for $ip from $whoisserver server:\n\n$result";
    }
    return $res;
}

function ValidateIP($ip) {
    $ipnums = explode(".", $ip);
    if(count($ipnums) != 4) {
        return false;
    }
    foreach($ipnums as $ipnum) {
        if(!is_numeric($ipnum) || ($ipnum > 255)) {
            return false;
        }
    }
    return $ip;
}

function ValidateDomain($domain) {
    if(!preg_match("/^([-a-z0-9]{2,100})\.([a-z\.]{2,8})$/i", $domain)) {
        return false;
    }
    return $domain;
}

function QueryWhoisServer($whoisserver, $domain) {
    $port = 43;
    $timeout = 10;
    $fp = @fsockopen($whoisserver, $port, $errno, $errstr, $timeout) or die("Socket Error " . $errno . " - " . $errstr);
    if($whoisserver == "whois.verisign-grs.com") $domain = "=".$domain; // whois.verisign-grs.com requires the equals sign ("=") or it returns any result containing the searched string.
    fputs($fp, $domain . "\r\n");
    $out = "";
    while(!feof($fp)){
        $out .= fgets($fp);
    }
    fclose($fp);

    $res = "";
    if((strpos(strtolower($out), "error") === FALSE) && (strpos(strtolower($out), "not allocated") === FALSE)) {
        $rows = explode("\n", $out);
        foreach($rows as $row) {
            $row = trim($row);
            if(($row != '') && ($row{0} != '#') && ($row{0} != '%')) {
                $res .= $row."\n";
            }
        }
    }
    return $res;
}
?>
<html>
<head>
<title>Whois Lookup Script</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>

<body>
<form action="<?=$_SERVER['PHP_SELF'];?>">
<p><b><label for="domain">Domain/IP Address:</label></b> <input type="text" name="domain" id="domain" value="<?=$domain;?>"> <input type="submit" value="Lookup"></p>
</form>
<?
if($domain) {
    $domain = trim($domain);
    if(substr(strtolower($domain), 0, 7) == "http://") $domain = substr($domain, 7);
    if(substr(strtolower($domain), 0, 4) == "www.") $domain = substr($domain, 4);
    if(ValidateIP($domain)) {
        $result = LookupIP($domain);
    }
    elseif(ValidateDomain($domain)) {
        $result = LookupDomain($domain);
    }
    else die("Invalid Input!");
    echo "<pre>\n" . $result . "\n</pre>\n";
}
?>
</body>
</html>

Answer 1

当您尝试将域(例如:google.com)从表单发送到您的脚本时，不要将其作为“google.com”发送，而是添加“域”一词，即(域 google.com)。

这是做什么的，它告诉 whois 服务器找到这个域(即 google.com)，而不是任何其他包含单词 google 的域。

所以在函数“LookupDomain($domain)”中确保 $domain 的值应该是'domain google.com' 以显示正确的结果。