Merge pull request #252 from finecho/master

增加 Guzzle 选项配置

src/Gateways/Gateway.php

@@ -26,6 +26,11 @@ abstract class Gateway implements GatewayInterface
      */
     protected $config;
 
+    /**
+     * @var array
+     */
+    protected $options;
+
     /**
      * @var float
      */
@@ -85,6 +90,26 @@ public function setConfig(Config $config)
         return $this;
     }
 
+    /**
+     * @param $options
+     *
+     * @return $this
+     */
+    public function setGuzzleOptions($options)
+    {
+        $this->options = $options;
+
+        return $this;
+    }
+
+    /**
+     * @return array
+     */
+    public function getGuzzleOptions()
+    {
+        return $this->options ?: $this->config->get('options', []);
+    }
+
     /**
      * {@inheritdoc}
      */

src/Traits/HasHttpRequest.php

@@ -91,12 +91,12 @@ protected function request($method, $endpoint, $options = [])
      */
     protected function getBaseOptions()
     {
-        $options = [
+        $options = method_exists($this, 'getGuzzleOptions') ? $this->getGuzzleOptions() : [];
+
+        return \array_merge($options, [
             'base_uri' => method_exists($this, 'getBaseUri') ? $this->getBaseUri() : '',
             'timeout' => method_exists($this, 'getTimeout') ? $this->getTimeout() : 5.0,
-        ];
-
-        return $options;
+        ]);
     }
 
     /**