Update Request::getIp method

Author: natanfelles

src/Request.php

@@ -895,7 +895,13 @@ public function getId() : ?string
      */
     public function getIp() : string
     {
-        return $_SERVER[$this->getIpKey()];
+        $key = $this->getIpKey();
+        if ($key === 'HTTP_X_FORWARDED_FOR') {
+            $ip = \explode(',', $_SERVER[$key], 2)[0];
+            $ip = \trim($ip);
+            return $ip;
+        }
+        return $_SERVER[$key];
     }
 
     /**

tests/RequestTest.php

@@ -698,6 +698,8 @@ public function testIpKey() : void
     {
         $this->request->setIpKey('HTTP_X_FORWARDED_FOR');
         self::assertSame('45.181.102.88', $this->request->getIp());
+        $_SERVER['HTTP_X_FORWARDED_FOR'] = '203.0.113.195, 2001:db8:85a3:8d3:1319:8a2e:370:7348';
+        self::assertSame('203.0.113.195', $this->request->getIp());
     }
 
     public function testIpKeyException() : void