Parse Domain
If you need to validate a domain name for use in a whois, this little classlet will check that it is valid before you search a whois database. This is not intended to check for sub-domains, simply domains of type example.com.au, example.com etc.
<?php
class parse_domain{
private $tldArray;
private $countryArray;
public function __construct(){
$this->tldArray = $this->setTldArray();
$this->countryArray = $this->setCountryArray();
}
/**
* set the tldArray
*
* @access private
*
* @return array
*
*/
private function setTldArray(){
return array("name", "mobi", "pro", "edu", "int", "com", "net", "org", "museum", "csiro", "mil", "gov", "biz", "info", "root", "arpa", "aero", "cat", "jobs", "travel");
}
/**
* Set the countryArray array
*
*@access private
*
* @return array
*
*/
private function setCountryArray(){
return array(
"AF","AL","DZ","AS","AD","AO","AI","AQ","AG","AR","AM","AW","AU","AT","AZ","BS","BH","BD","BB","BY","BE","BZ","BJ","BM","BT","BO","BA","BW","BV","BR","IO","BN","BG","BF","BI","KH","CM","CA","CV","KY","CF","TD","CL","CN","CX","CC","CO","KM","CG","CD","CK","CR","CI","HR","CU","CY","CZ","DK","DJ","DM","DO","TP","EC","EG","SV","GQ","ER","EE","ET","FK","FO","FJ","FI","FR","FX","GF","PF","TF","GA","GM","GE","DE","GH","GI","GR","GL","GD","GP","GU","GT","GN","GW","GY","HT","HM","VA","HN","HK","HU","IS","IN","ID","IR","IQ","IE","IL","IT","JM","JP","JO","KZ","KE","KI","KP","KR","KW","KG","LA","LV","LB","LS","LR","LY","LI","LT","LU","MO","MK","MG","MW","MY","MV","ML","MT","MH","MQ","MR","MU","YT","MX","FM","MD","MC","MN","MS","MA","MZ","MM","NA","NR","NP","NL","AN","NC","NZ","NI","NE","NG","NU","NF","MP","NO","OM","PK","PW","PA","PG","PY","PE","PH","PN","PL","PT","PR","QA","RE","RO","RU","RW","KN","LC","VC","WS","SM","ST","SA","SN","SC","SL","SG","SK","SI","SB","SO","ZA","GS","ES","LK","SH","PM","SD","SR","SJ","SZ","SE","CH","SY","TW","TJ","TZ","TH","TG","TK","TO","TT","TN","TR","TM","TC","TV","UG","UA","AE","GB","US","UM","UY","UZ","VU","VE","VN","VG","VI","WF","EH","YE","YU","ZM","ZW");
}
/**
*
* Check there are no invalid chars
*
* @access private
*
* @param string
*
* @return bool
*
*/
private function checkChars($domainName){
if(!preg_match("/^(?:[^\W_]((?:[^\W_]|-){0,61}[^\W_])?\.)+[a-zA-Z]{2,6}\.?$/", $domainName))
{
throw new Exception("Invalid Characters in Domain Name");
}
}
/**
*
* Check if domain name is valid
*
* @access public
*
* @param string
*
* @return bool
*
*/
public function validateDomain($domainName){
$this->checkDots($domainName);
$this->checkParts($domainName);
$this->checkChars($domainName);
return true;
}
/**
*
* Check the parts of the domain name
*
* @access private
*
* @return bool
*
*/
private function checkParts($domainName){
$parts = explode(".", $domainName);
/*** now we have 2 or 3 parts ***/
if(!in_array($parts[1], $this->tldArray))
{
throw new Exception("Domain has incorrect TLD");
}
/*** if there are 3 parts, we need to check for a valid country domain ***/
if(sizeof($parts) == 3)
{
if(!in_array(strtoupper($parts[2]), $this->countryArray))
{
throw new Exception("Invalid Country Code");
}
}
}
/**
* Check domain name has 1 or 2 dots
*
* @access private
*
* @return void
*
*/
private function checkDots($domainName){
if(substr_count($domainName, ".") != 2 && substr_count($domainName, ".") != 1)
{
throw new Exception("Invalid Domain Name Supplied");
}
}
} /*** end of class ***/
try{
$domainName = "foo.com.au";
$domain = new parse_domain;
if($domain->validateDomain($domainName) == TRUE)
{
echo "domain is valid";
}
else
{
echo "invalid Domain";
}
}
catch(Exception $e)
{
echo $e->getMessage();
}
?>