autoproxy detection for given URL in GUI

autoproxy.hxx

@@ -67,7 +67,7 @@ namespace proxy {
       platform's implementation.
       
       @code
-      proxy::Auto pf;        // keep for program life time (because of caching)
+      proxy::Face pf;        // keep for program life time (because of caching)
       proxy::List pf.proxies("http://swisssign.com");
       [...]                  // set proxy, read from http://swisssign.com
       @endcode

proxyface/gui/proxy.hxx

@@ -8,10 +8,12 @@
 #ifndef PROXY_HXX
 #define PROXY_HXX
 
+#include <autoproxy.hxx>
 #include <ui_proxy.h>
 #include <QtGui/QDialog>
 #include <QtGui/QPushButton>
 #include <QtNetwork/QNetworkProxy>
+#include <QtCore/QUrl>
 #include <QtCore/QSettings>
 
 #include <QtCore/QDebug>
@@ -22,12 +24,14 @@ class Proxy: public QDialog, private Ui::Proxy {
 
   public:
     
-    Proxy(QWidget* p=0): QDialog(p) {
+    Proxy(QString testUrl, QWidget* p=0): QDialog(p), _testUrl(testUrl){
       setupUi(this);
       QSettings s("SwissSign", "ProxySettings");
       _type->setCurrentIndex(s.value("default-type", 0).toInt());
       _url->setText(s.value("default-server", QString()).toString());
       _port->setValue(s.value("default-port", 80).toInt());
+      connect(&_auto, SIGNAL(proxyFound(const QUrl&, const QNetworkProxy&)),
+              SLOT(proxyFound(const QUrl&, const QNetworkProxy&)));
       accept();
     }
 
@@ -36,8 +40,12 @@ class Proxy: public QDialog, private Ui::Proxy {
     void acceptValues() {
       QNetworkProxy::ProxyType type(QNetworkProxy::NoProxy);
       switch (_type->currentIndex()) {
-        case 0: type=QNetworkProxy::HttpProxy; break;
-        case 1: type=QNetworkProxy::Socks5Proxy; break;
+        case 0: try {
+          type=QNetworkProxy::NoProxy;
+          _auto.proxy(_testUrl);
+        } catch (...) {} break;
+        case 1: type=QNetworkProxy::HttpProxy; break;
+        case 2: type=QNetworkProxy::Socks5Proxy; break;
       }
       QNetworkProxy::setApplicationProxy
         (QNetworkProxy(type, _url->text(), _port->value()));
@@ -64,6 +72,10 @@ class Proxy: public QDialog, private Ui::Proxy {
 
   public Q_SLOTS:
 
+    void proxyFound(const QUrl&, const QNetworkProxy& p) {
+      QNetworkProxy::setApplicationProxy(p);
+    }
+
     void on__save_clicked(bool=false) {
       QSettings s("SwissSign", "ProxySettings");
       s.setValue("default-type", _type->currentIndex());
@@ -86,6 +98,11 @@ class Proxy: public QDialog, private Ui::Proxy {
       QDialog::accept();
     }
 
+  private:
+
+    proxy::Face _auto;
+    QUrl _testUrl;
+
 };
 
 #endif