[IpValidator] disable ipv6 checks (#13984)

* disable ipv6 checks

* remove empty line

* updated CHANGELOG.md

framework/CHANGELOG.md

@@ -64,7 +64,8 @@ Yii Framework 2 Change Log
 - Enh #13560: Refactored `\yii\widgets\FragmentCache::getCachedContent()`, added tests (Kolyunya)
 - Bug #13901: Fixed passing unused parameter to `formatMessage()` call in `\yii\validators\IpValidator` (Kolyunya)
 - Enh #13945: Removed Courier New from error page fonts list since it looks bad on Linux (samdark)
-- Bug #13961: RBAC Rules: `PostgreSQL: PHP Warning "unserialize() expects parameter 1 to be string, resource given` was fixed (vsguts)
+- Bug #13961: RBAC Rules: PostgreSQL: PHP Warning "unserialize() expects parameter 1 to be string, resource given" was fixed (vsguts)
+- Enh #13976: Disabled IPv6 check on `\yii\validators\IpValidator` as it turns out it is not needed for inet_* methods to work (mikk150)
 - Enh #13981: `yii\caching\Cache::getOrSet()` now supports both `Closure` and `callable` (silverfire) 
 
 2.0.11.2 February 08, 2017

framework/validators/IpValidator.php

@@ -221,11 +221,6 @@ class IpValidator extends Validator
         if (!$this->ipv4 && !$this->ipv6) {
             throw new InvalidConfigException('Both IPv4 and IPv6 checks can not be disabled at the same time');
         }
-
-        if (!defined('AF_INET6') && $this->ipv6) {
-            throw new InvalidConfigException('IPv6 validation can not be used. PHP is compiled without IPv6');
-        }
-
         if ($this->message === null) {
             $this->message = Yii::t('yii', '{attribute} must be a valid IP address.');
         }

tests/framework/validators/IpValidatorTest.php

@@ -13,10 +13,6 @@ class IpValidatorTest extends TestCase
 {
     protected function setUp()
     {
-        if (!defined('AF_INET6')) {
-            $this->markTestSkipped('The environment does not support IPv6.');
-        }
-
         parent::setUp();
         $this->mockApplication();
     }