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<?php
namespace BenTools\HostnameExtractor\SuffixProvider;
use CallbackFilterIterator;
use GuzzleHttp\Client;
class PublicSuffixProvider implements SuffixProviderInterface
{
/**
* @var Client
*/
private $client;
* @var string
private $listUrl;
* @var array
private $cache;
* @inheritDoc
public function __construct(
Client $client,
string $listUrl = 'https://publicsuffix.org/list/public_suffix_list.dat'
) {
$this->client = $client;
$this->listUrl = $listUrl;
}
* @param bool $force
public function fetchSuffixes(bool $force = false): void
if (null === $this->cache || true === $force) {
$content = $this->client->get($this->listUrl)->getBody();
// Create an iterator for the document
$iterator = (function (string $content) {
$tok = strtok($content, "\r\n");
while (false !== $tok) {
$line = $tok;
$tok = strtok("\r\n");
// Remove "*." prefixes
if (0 === strpos($line, '*.')) {
$line = substr($line, 2, mb_strlen($line) - 2);
yield $line;
})($content);
// Ignore commented lines
$valid = function (string $string) {
return 0 !== strpos($string, '//');
};
$suffixes = iterator_to_array(new CallbackFilterIterator($iterator, $valid));
// Sort by suffix length
usort($suffixes, function ($a, $b) {
return mb_strlen($b) <=> mb_strlen($a);
});
$this->cache = $suffixes;
public function getSuffixes(): iterable
$this->fetchSuffixes();
yield from $this->cache ?? new \EmptyIterator();
bpolaszek /
hostname-extractor
