Merge pull request #257 from clue-labs/dns-multiple

Support falling back to multiple DNS servers from DNS config

Author: clue

composer.json

@@ -28,7 +28,7 @@
     "require": {
         "php": ">=5.3.0",
         "evenement/evenement": "^3.0 || ^2.0 || ^1.0",
-        "react/dns": "^1.1",
+        "react/dns": "^1.7",
         "react/event-loop": "^1.0 || ^0.5",
         "react/promise": "^2.6.0 || ^1.2.1",
         "react/promise-timer": "^1.4.0",

src/Connector.php

@@ -57,16 +57,18 @@ public function __construct(LoopInterface $loop, array $options = array())
                 $resolver = $options['dns'];
             } else {
                 if ($options['dns'] !== true) {
-                    $server = $options['dns'];
+                    $config = $options['dns'];
                 } else {
                     // try to load nameservers from system config or default to Google's public DNS
                     $config = DnsConfig::loadSystemConfigBlocking();
-                    $server = $config->nameservers ? \reset($config->nameservers) : '8.8.8.8';
+                    if (!$config->nameservers) {
+                        $config->nameservers[] = '8.8.8.8'; // @codeCoverageIgnore
+                    }
                 }
 
                 $factory = new DnsFactory();
                 $resolver = $factory->createCached(
-                    $server,
+                    $config,
                     $loop
                 );
             }