Add proxy support for http client

config.default.php

@@ -219,3 +219,10 @@ define('BRUTEFORCE_LOCKDOWN_DURATION', 15);
 // Session duration in second (0 = until the browser is closed)
 // See http://php.net/manual/en/session.configuration.php#ini.session.cookie-lifetime
 define('SESSION_DURATION', 0);
+
+// HTTP client proxy
+define('HTTP_PROXY_HOSTNAME', '');
+define('HTTP_PROXY_PORT', '3128');
+define('HTTP_PROXY_USERNAME', '');
+define('HTTP_PROXY_PASSWORD', '');
+