Created new namespace for IP geolocation elements

module/Common/src/IpGeolocation/GeoLite2LocationResolver.php

@@ -0,0 +1,73 @@
+<?php
+declare(strict_types=1);
+
+namespace Shlinkio\Shlink\Common\IpGeolocation;
+
+use GeoIp2\Database\Reader;
+use GeoIp2\Exception\AddressNotFoundException;
+use GeoIp2\Model\City;
+use MaxMind\Db\Reader\InvalidDatabaseException;
+use Shlinkio\Shlink\Common\Exception\WrongIpException;
+
+class GeoLite2LocationResolver implements IpLocationResolverInterface
+{
+    /**
+     * @var Reader
+     */
+    private $geoLiteDbReader;
+
+    public function __construct(Reader $geoLiteDbReader)
+    {
+        $this->geoLiteDbReader = $geoLiteDbReader;
+    }
+
+    /**
+     * @param string $ipAddress
+     * @return array
+     * @throws WrongIpException
+     */
+    public function resolveIpLocation(string $ipAddress): array
+    {
+        try {
+            $city = $this->geoLiteDbReader->city($ipAddress);
+            return $this->mapFields($city);
+        } catch (AddressNotFoundException $e) {
+            throw WrongIpException::fromIpAddress($ipAddress, $e);
+        } catch (InvalidDatabaseException $e) {
+            throw new WrongIpException('Provided GeoLite2 db file is invalid', 0, $e);
+        }
+    }
+
+    private function mapFields(City $city): array
+    {
+        return [
+            'country_code' => $city->country->isoCode ?? '',
+            'country_name' => $city->country->name ?? '',
+            'region_name' => $city->mostSpecificSubdivision->name ?? '',
+            'city' => $city->city->name ?? '',
+            'latitude' => (string) $city->location->latitude, // FIXME Cast to string for BC compatibility
+            'longitude' => (string) $city->location->longitude, // FIXME Cast to string for BC compatibility
+            'time_zone' => $city->location->timeZone ?? '',
+        ];
+    }
+
+    /**
+     * Returns the interval in seconds that needs to be waited when the API limit is reached
+     *
+     * @return int
+     */
+    public function getApiInterval(): int
+    {
+        return 0;
+    }
+
+    /**
+     * Returns the limit of requests that can be performed to the API in a specific interval, or null if no limit exists
+     *
+     * @return int|null
+     */
+    public function getApiLimit(): ?int
+    {
+        return null;
+    }
+}