114 lines
2.9 KiB
PHP
114 lines
2.9 KiB
PHP
<?php
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declare(strict_types=1);
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namespace App\Service;
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use App\Service\IpGeolocator;
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use Exception;
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use MaxMind\Db\Reader;
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use Psr\Cache\CacheItemPoolInterface;
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use RuntimeException;
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use Symfony\Component\Cache\Adapter\ProxyAdapter;
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final class IpGeolocation
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{
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private bool $isInitialized = false;
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private ?Reader $reader;
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private ?string $readerShortName;
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private string $attribution = '';
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private CacheItemPoolInterface $psr6Cache;
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public function __construct(CacheItemPoolInterface $psr6Cache)
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{
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$this->psr6Cache = new ProxyAdapter($psr6Cache, 'ip_geo.');
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}
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private function initialize(): void
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{
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if ($this->isInitialized) {
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return;
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}
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$this->isInitialized = true;
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$readers = [
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IpGeolocator\GeoLite::class,
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IpGeolocator\DbIp::class,
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];
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foreach ($readers as $reader) {
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/** @var IpGeolocator\IpGeolocatorInterface $reader */
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if ($reader::isAvailable()) {
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$this->reader = $reader::getReader();
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$this->readerShortName = $reader::getReaderShortName();
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$this->attribution = $reader::getAttribution();
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return;
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}
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}
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$this->reader = null;
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$this->readerShortName = null;
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$this->attribution = __(
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'GeoLite database not configured for this installation. See System Administration for instructions.'
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);
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}
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public function getAttribution(): string
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{
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if (!$this->isInitialized) {
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$this->initialize();
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}
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return $this->attribution;
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}
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public function getLocationInfo(string $ip): IpGeolocator\IpResult
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{
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if (!$this->isInitialized) {
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$this->initialize();
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}
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$reader = $this->reader;
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if (null === $reader) {
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throw new RuntimeException('No IP Geolocation reader available.');
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}
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$cacheKey = $this->readerShortName . '_' . str_replace([':', '.'], '_', $ip);
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$cacheItem = $this->psr6Cache->getItem($cacheKey);
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if (!$cacheItem->isHit()) {
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try {
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$ipInfo = $reader->get($ip);
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if (!empty($ipInfo)) {
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return $ipInfo;
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}
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$cacheItem->set([
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'status' => 'error',
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'message' => 'Internal/Reserved IP',
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]);
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} catch (Exception $e) {
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$cacheItem->set([
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'status' => 'error',
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'message' => $e->getMessage(),
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]);
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}
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/** @noinspection SummerTimeUnsafeTimeManipulationInspection */
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$cacheItem->expiresAfter(86400 * 7);
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$this->psr6Cache->saveDeferred($cacheItem);
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}
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$ipInfo = $cacheItem->get();
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return IpGeolocator\IpResult::fromIpInfo($ip, $ipInfo);
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}
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}
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