/**
* Queries the WHOIS server for the given domain name.
*
* @param Domain|string $domain Domain name.
*
* @return string Result of the WHOIS server.
*
* @throws WhoisException when the TLD does not exist.
* @throws WhoisException when the connection to the WHOIS server failed.
* @throws QuotaExceededException if the quota for the WHOIS server is exceeded.
*/
public function query($domain)
{
if (false === $domain instanceof Domain) {
$domain = Domain::create($domain);
}
$tld = $domain->getTld();
try {
$data = $this->data->getByTld($tld);
} catch (DataException $e) {
throw new WhoisException(sprintf('The TLD "%s" does not exist.', $tld), 0, $e);
}
$connection = $this->factory->createStreamConnection();
try {
$connection->open($data['whoisServer'], 43);
$connection->write(sprintf("%s\r\n", $domain->getDomainName()));
$whois = $connection->read();
$connection->close();
} catch (ConnectionException $e) {
throw new WhoisException(sprintf('Could not query WHOIS for "%s".', $domain->getDomainName()), 0, $e);
}
if (0 === strlen(trim($whois))) {
throw new WhoisException(sprintf('Retrieved empty WHOIS for "%s".', $domain->getDomainName()));
}
if (true === isset($data['patterns']['quotaExceeded']) && preg_match($data['patterns']['quotaExceeded'], $whois)) {
throw new QuotaExceededException(sprintf('Quota exceeded for WHOIS server "%s".', $data['whoisServer']));
}
if (true === isset($data['patterns']['waitPeriod']) && true === isset($data['waitPeriod']) && preg_match($data['patterns']['waitPeriod'], $whois)) {
sleep($data['waitPeriod']);
return $this->query($domain);
}
return $whois;
}
/**
* Returns if the given domain is available.
*
* @param Domain|string $domain Domain.
*
* @return boolean `true` if the domain is available, `false` if not.
*
* @throws AvailabilityException when no pattern exists for the given TLD.
*/
public function isAvailable($domain)
{
if (false === $domain instanceof Domain) {
$domain = Domain::create($domain);
}
$data = $this->data->getByTld($domain->getTld());
if (false === isset($data['patterns']['notRegistered'])) {
throw new AvailabilityException(sprintf('No pattern exists to check availability of %s domains.', $domain->getTld()));
}
$this->lastWhoisResult = $this->whoisClient->query($domain);
if (preg_match($data['patterns']['notRegistered'], $this->lastWhoisResult)) {
return true;
}
return false;
}
/**
* @test
* @covers Cocur\Domain\Data\Data::getByTld()
* @expectedException Cocur\Domain\Data\DataException
*/
public function getByTldThrowsException()
{
$this->data->getByTld('invalid');
}