Add IpSupport class

Author: relliv

src/Support/IpSupport.php

@@ -0,0 +1,81 @@
+<?php
+
+namespace LaravelReady\UltimateSupport\Support;
+
+use Exception;
+
+use Illuminate\Support\Facades\Log;
+use Illuminate\Support\Facades\Http;
+
+class IpSupport
+{
+    /**
+     * Check client is from localhost
+     *
+     * @source https://stackoverflow.com/a/21702853/6940144
+     *
+     * @return bool
+     */
+    public static function isLocalhost(): bool
+    {
+        return in_array($_SERVER['REMOTE_ADDR'], ['127.0.0.1', '::1', '172.27.0.1']);
+    }
+
+    /**
+     * Get client public IP address if it is localhost
+     *
+     * @return null | string
+     */
+    public static function getLocalhostPublicIp(): null | string
+    {
+        $ipAddress = null;
+
+        $response = Http::get('https://api.ipify.org/?format=json');
+
+        if ($response->ok()) {
+            $ipAddress = $response->json()['ip'] ?? null;
+
+            if (!empty($ipAddress)) {
+                return $ipAddress;
+            }
+        }
+
+        return $ipAddress;
+    }
+
+    /**
+     * Get client real IP address
+     *
+     * @source https://stackoverflow.com/q/13646690/6940144
+     *
+     * @param bool $getLocalPublicIp
+     *
+     * @return string
+     */
+    public static function getIP(bool $getLocalPublicIp = true): string
+    {
+        $baseIp = $_SERVER['REMOTE_ADDR'];
+
+        try {
+            // get localhost public ip
+            if ($getLocalPublicIp && self::isLocalhost()) {
+                return self::getLocalhostPublicIp();
+            }
+
+            // check other conditions, cloudflare etc
+            if (isset($_SERVER['HTTP_CF_CONNECTING_IP']) && filter_var($_SERVER['HTTP_CF_CONNECTING_IP'], FILTER_VALIDATE_IP)) {
+                return $_SERVER['HTTP_CF_CONNECTING_IP'];
+            } elseif (isset($_SERVER['HTTP_X_REAL_IP']) && filter_var($_SERVER['HTTP_X_REAL_IP'], FILTER_VALIDATE_IP)) {
+                return $_SERVER['HTTP_X_REAL_IP'];
+            } elseif (isset($_SERVER['HTTP_CLIENT_IP']) && filter_var($_SERVER['HTTP_CLIENT_IP'], FILTER_VALIDATE_IP)) {
+                return $_SERVER['HTTP_CLIENT_IP'];
+            } elseif (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) {
+                return $_SERVER['HTTP_X_FORWARDED_FOR'];
+            }
+        } catch (Exception $exp) {
+            Log::alert('getIP error', ['error' => $exp]);
+        }
+
+        return $baseIp;
+    }
+}