setup proxy for $HTTP_PROXY, if env-variable is defined; refs #12

src/proxyface/autoproxy.hxx

@@ -310,6 +310,13 @@ namespace proxy {
         reset();
         _url = url;
         _direct = true; // first try direct access
+        if (getenv("HTTP_PROXY")) {
+          QUrl proxy(QString(getenv("HTTP_PROXY")));
+          QNetworkProxy envProxy(QNetworkProxy::HttpProxy,
+                                 proxy.host(), proxy.port(),
+                                 proxy.userName(), proxy.password());
+          setupProxyCheck(envProxy, url);
+        }
         QNetworkProxy directProxy(QNetworkProxy::NoProxy);
         setupProxyCheck(directProxy, url);
         QNetworkProxy defaultProxy;