Http Proxy support

README.md

@@ -145,3 +145,12 @@ project](https://cloud.google.com/appengine/docs/flexible/php/download).
 
 No one ever has enough engineers, so we're very happy to accept contributions
 via Pull Requests. For details, see [CONTRIBUTING](CONTRIBUTING.md)
+
+## Proxy support
+To make requests to Google servers via proxy add environment variable
+RECAPTCHA_PROXY with proxy address and port.
+Exampple:
+```
+RECAPTCHA_PROXY=192.168.1.100:3128
+```
+Use CurlPost RequestMethod.

composer.json

@@ -1,5 +1,5 @@
 {
-    "name": "google/recaptcha",
+    "name": "jakreiter/recaptchaproxyable",
     "description": "Client library for reCAPTCHA, a free service that protects websites from spam and abuse.",
     "type": "library",
     "keywords": ["recaptcha", "captcha", "spam", "abuse"],

src/ReCaptcha/RequestMethod/CurlPost.php

@@ -90,6 +90,10 @@ public function submit(RequestParameters $params)
             CURLOPT_RETURNTRANSFER => true,
             CURLOPT_SSL_VERIFYPEER => true
         );
+        // jakrei -  added proxy support
+        if (isset($_ENV['RECAPTCHA_PROXY']) && $_ENV['RECAPTCHA_PROXY']) {
+            $options[CURLOPT_PROXY] = $_ENV['RECAPTCHA_PROXY'];
+        }
         $this->curl->setoptArray($handle, $options);
 
         $response = $this->curl->exec($handle);