remove SOCKS4 support from core and GUI

- now we support SOCKS5 only

4 files changed, 9 insertions, 61 deletions

diff --git a/src/qt/forms/optionsdialog.ui b/src/qt/forms/optionsdialog.ui
index 0c5b8895aa..1f535a4a62 100644
--- a/src/qt/forms/optionsdialog.ui
+++ b/src/qt/forms/optionsdialog.ui
@@ -329,26 +329,6 @@
           </widget>
          </item>
          <item>
-          <widget class="QLabel" name="socksVersionLabel">
-           <property name="text">
-            <string>SOCKS &amp;Version:</string>
-           </property>
-           <property name="textFormat">
-            <enum>Qt::PlainText</enum>
-           </property>
-           <property name="buddy">
-            <cstring>socksVersion</cstring>
-           </property>
-          </widget>
-         </item>
-         <item>
-          <widget class="QValueComboBox" name="socksVersion">
-           <property name="toolTip">
-            <string>SOCKS version of the proxy (e.g. 5)</string>
-           </property>
-          </widget>
-         </item>
-         <item>
           <spacer name="horizontalSpacer_1_Network">
            <property name="orientation">
             <enum>Qt::Horizontal</enum>
diff --git a/src/qt/optionsdialog.cpp b/src/qt/optionsdialog.cpp
index 9502dba904..597be40abd 100644
--- a/src/qt/optionsdialog.cpp
+++ b/src/qt/optionsdialog.cpp
@@ -52,15 +52,8 @@ OptionsDialog::OptionsDialog(QWidget *parent) :
     ui->proxyPort->setEnabled(false);
     ui->proxyPort->setValidator(new QIntValidator(1, 65535, this));
 
-    /** SOCKS version is only selectable for default proxy and is always 5 for IPv6 and Tor */
-    ui->socksVersion->setEnabled(false);
-    ui->socksVersion->addItem("5", 5);
-    ui->socksVersion->addItem("4", 4);
-    ui->socksVersion->setCurrentIndex(0);
-
     connect(ui->connectSocks, SIGNAL(toggled(bool)), ui->proxyIp, SLOT(setEnabled(bool)));
     connect(ui->connectSocks, SIGNAL(toggled(bool)), ui->proxyPort, SLOT(setEnabled(bool)));
-    connect(ui->connectSocks, SIGNAL(toggled(bool)), ui->socksVersion, SLOT(setEnabled(bool)));
 
     ui->proxyIp->installEventFilter(this);
 
@@ -182,7 +175,6 @@ void OptionsDialog::setMapper()
     mapper->addMapping(ui->connectSocks, OptionsModel::ProxyUse);
     mapper->addMapping(ui->proxyIp, OptionsModel::ProxyIP);
     mapper->addMapping(ui->proxyPort, OptionsModel::ProxyPort);
-    mapper->addMapping(ui->socksVersion, OptionsModel::ProxySocksVersion);
 
     /* Window */
 #ifndef Q_OS_MAC
diff --git a/src/qt/optionsmodel.cpp b/src/qt/optionsmodel.cpp
index 09553a2587..f07e66bf04 100644
--- a/src/qt/optionsmodel.cpp
+++ b/src/qt/optionsmodel.cpp
@@ -122,11 +122,6 @@ void OptionsModel::Init()
     // Only try to set -proxy, if user has enabled fUseProxy
     if (settings.value("fUseProxy").toBool() && !SoftSetArg("-proxy", settings.value("addrProxy").toString().toStdString()))
         addOverriddenOption("-proxy");
-    if (!settings.contains("nSocksVersion"))
-        settings.setValue("nSocksVersion", 5);
-    // Only try to set -socks, if user has enabled fUseProxy
-    if (settings.value("fUseProxy").toBool() && !SoftSetArg("-socks", settings.value("nSocksVersion").toString().toStdString()))
-        addOverriddenOption("-socks");
 
     // Display
     if (!settings.contains("language"))
@@ -188,8 +183,6 @@ QVariant OptionsModel::data(const QModelIndex & index, int role) const
             QStringList strlIpPort = settings.value("addrProxy").toString().split(":", QString::SkipEmptyParts);
             return strlIpPort.at(1);
         }
-        case ProxySocksVersion:
-            return settings.value("nSocksVersion", 5);
 
 #ifdef ENABLE_WALLET
         case Fee: {
@@ -284,13 +277,6 @@ bool OptionsModel::setData(const QModelIndex & index, const QVariant & value, in
             }
         }
         break;
-        case ProxySocksVersion: {
-            if (settings.value("nSocksVersion") != value) {
-                settings.setValue("nSocksVersion", value.toInt());
-                setRestartRequired(true);
-            }
-        }
-        break;
 #ifdef ENABLE_WALLET
         case Fee: { // core option - can be changed on-the-fly
             // Todo: Add is valid check  and warn via message, if not
@@ -378,20 +364,16 @@ bool OptionsModel::getProxySettings(QNetworkProxy& proxy) const
     // GUI settings can be overridden with -proxy.
     proxyType curProxy;
     if (GetProxy(NET_IPV4, curProxy)) {
-        if (curProxy.second == 5) {
-            proxy.setType(QNetworkProxy::Socks5Proxy);
-            proxy.setHostName(QString::fromStdString(curProxy.first.ToStringIP()));
-            proxy.setPort(curProxy.first.GetPort());
+        proxy.setType(QNetworkProxy::Socks5Proxy);
+        proxy.setHostName(QString::fromStdString(curProxy.ToStringIP()));
+        proxy.setPort(curProxy.GetPort());
 
-            return true;
-        }
-        else
-            return false;
+        return true;
     }
     else
         proxy.setType(QNetworkProxy::NoProxy);
 
-    return true;
+    return false;
 }
 
 void OptionsModel::setRestartRequired(bool fRequired)
diff --git a/src/qt/paymentserver.cpp b/src/qt/paymentserver.cpp
index 53db2c5cd9..5471625a67 100644
--- a/src/qt/paymentserver.cpp
+++ b/src/qt/paymentserver.cpp
@@ -341,20 +341,14 @@ void PaymentServer::initNetManager()
 
     QNetworkProxy proxy;
 
-    // Query active proxy (fails if no SOCKS5 proxy)
+    // Query active SOCKS5 proxy
     if (optionsModel->getProxySettings(proxy)) {
-        if (proxy.type() == QNetworkProxy::Socks5Proxy) {
-            netManager->setProxy(proxy);
+        netManager->setProxy(proxy);
 
-            qDebug() << "PaymentServer::initNetManager : Using SOCKS5 proxy" << proxy.hostName() << ":" << proxy.port();
-        }
-        else
-            qDebug() << "PaymentServer::initNetManager : No active proxy server found.";
+        qDebug() << "PaymentServer::initNetManager : Using SOCKS5 proxy" << proxy.hostName() << ":" << proxy.port();
     }
     else
-        emit message(tr("Net manager warning"),
-            tr("Your active proxy doesn't support SOCKS5, which is required for payment requests via proxy."),
-            CClientUIInterface::MSG_WARNING);
+        qDebug() << "PaymentServer::initNetManager : No active proxy server found.";
 
     connect(netManager, SIGNAL(finished(QNetworkReply*)),
             this, SLOT(netRequestFinished(QNetworkReply*)));