Add Export/Import Wallet to GUI

src/qt/bitcoin.qrc

@@ -41,6 +41,8 @@
         <file alias="filesave">res/icons/filesave.png</file>
         <file alias="qrcode">res/icons/qrcode.png</file>
         <file alias="debugwindow">res/icons/debugwindow.png</file>
+        <file alias="import">res/icons/import.png</file>
+        <file alias="export2">res/icons/export2.png</file>
     </qresource>
     <qresource prefix="/images">
         <file alias="about">res/images/about.png</file>

src/qt/bitcoingui.cpp

@@ -258,6 +258,10 @@ void BitcoinGUI::createActions()
     encryptWalletAction->setCheckable(true);
     backupWalletAction = new QAction(QIcon(":/icons/filesave"), tr("&Backup Wallet..."), this);
     backupWalletAction->setStatusTip(tr("Backup wallet to another location"));
+    dumpWalletAction = new QAction(QIcon(":/icons/export2"), tr("&Export Wallet..."), this);
+    dumpWalletAction->setStatusTip(tr("Export wallet's keys to a text file"));
+    importWalletAction = new QAction(QIcon(":/icons/import"), tr("&Import Wallet..."), this);
+    importWalletAction->setStatusTip(tr("Import a file's keys into a wallet"));
     changePassphraseAction = new QAction(QIcon(":/icons/key"), tr("&Change Passphrase..."), this);
     changePassphraseAction->setStatusTip(tr("Change the passphrase used for wallet encryption"));
     signMessageAction = new QAction(QIcon(":/icons/edit"), tr("Sign &message..."), this);
@@ -282,6 +286,8 @@ void BitcoinGUI::createActions()
     connect(changePassphraseAction, SIGNAL(triggered()), this, SLOT(changePassphrase()));
     connect(signMessageAction, SIGNAL(triggered()), this, SLOT(gotoSignMessageTab()));
     connect(verifyMessageAction, SIGNAL(triggered()), this, SLOT(gotoVerifyMessageTab()));
+    connect(dumpWalletAction, SIGNAL(triggered()), this, SLOT(dumpWallet()));
+    connect(importWalletAction, SIGNAL(triggered()), this, SLOT(importWallet()));
 }
 
 void BitcoinGUI::createMenuBar()
@@ -297,6 +303,10 @@ void BitcoinGUI::createMenuBar()
     // Configure the menus
     QMenu *file = appMenuBar->addMenu(tr("&File"));
     file->addAction(backupWalletAction);
+    file->addSeparator();
+    file->addAction(dumpWalletAction);
+    file->addAction(importWalletAction);
+    file->addSeparator();
     file->addAction(exportAction);
     file->addAction(signMessageAction);
     file->addAction(verifyMessageAction);
@@ -886,6 +896,73 @@ void BitcoinGUI::backupWallet()
     }
 }
 
+void BitcoinGUI::dumpWallet()
+{
+   if(!walletModel)
+      return;
+
+   WalletModel::UnlockContext ctx(walletModel->requestUnlock());
+   if(!ctx.isValid())
+   {
+       // Unlock wallet failed or was cancelled
+       return;
+   }
+
+#if QT_VERSION < 0x050000
+    QString saveDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
+#else
+    QString saveDir = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
+#endif
+    QString filename = QFileDialog::getSaveFileName(this, tr("Export Wallet"), saveDir, tr("Wallet Text (*.txt)"));
+    if(!filename.isEmpty()) {
+        if(!walletModel->dumpWallet(filename)) {
+            message(tr("Export Failed"),
+                         tr("There was an error trying to save the wallet's keys to your location.\n"
+                            "Keys were not saved")
+                      ,CClientUIInterface::MSG_ERROR);
+        }
+        else
+            message(tr("Export Successful"),
+                       tr("Keys were saved to:\n %1")
+                       .arg(filename)
+                      ,CClientUIInterface::MSG_INFORMATION);
+    }
+}
+
+void BitcoinGUI::importWallet()
+{
+   if(!walletModel)
+      return;
+
+   WalletModel::UnlockContext ctx(walletModel->requestUnlock());
+   if(!ctx.isValid())
+   {
+       // Unlock wallet failed or was cancelled
+       return;
+   }
+
+#if QT_VERSION < 0x050000
+    QString openDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
+#else
+    QString openDir = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
+#endif
+    QString filename = QFileDialog::getOpenFileName(this, tr("Import Wallet"), openDir, tr("Wallet Text (*.txt)"));
+    if(!filename.isEmpty()) {
+        if(!walletModel->importWallet(filename)) {
+            message(tr("Import Failed"),
+                         tr("There was an error trying to import the file's keys into your wallet.\n"
+                            "Some or all keys were not imported from walletfile: %1")
+                         .arg(filename)
+                      ,CClientUIInterface::MSG_ERROR);
+        }
+        else
+            message(tr("Import Successful"),
+                       tr("Keys %1, were imported into wallet.")
+                       .arg(filename)
+                      ,CClientUIInterface::MSG_INFORMATION);
+    }
+}
+
 void BitcoinGUI::changePassphrase()
 {
     AskPassphraseDialog dlg(AskPassphraseDialog::ChangePass, this);

src/qt/bitcoingui.h

@@ -87,6 +87,8 @@ class BitcoinGUI : public QMainWindow
     QAction *exportAction;
     QAction *encryptWalletAction;
     QAction *backupWalletAction;
+    QAction *dumpWalletAction;
+    QAction *importWalletAction;
     QAction *changePassphraseAction;
     QAction *aboutQtAction;
     QAction *openRPCConsoleAction;
@@ -171,6 +173,9 @@ private slots:
     void incomingTransaction(const QModelIndex & parent, int start, int end);
     /** Encrypt the wallet */
     void encryptWallet(bool status);
+    /** Import/Export the wallet's keys */
+    void dumpWallet();
+    void importWallet();
     /** Backup the wallet */
     void backupWallet();
     /** Change encrypted wallet passphrase */

src/qt/walletmodel.cpp

@@ -313,6 +313,16 @@ bool WalletModel::backupWallet(const QString &filename)
     return BackupWallet(*wallet, filename.toLocal8Bit().data());
 }
 
+bool WalletModel::dumpWallet(const QString &filename)
+{
+  return DumpWallet(wallet, filename.toLocal8Bit().data());
+}
+
+bool WalletModel::importWallet(const QString &filename)
+{
+  return ImportWallet(wallet, filename.toLocal8Bit().data());
+}
+
 void WalletModel::getStakeWeightFromValue(const int64& nTime, const int64& nValue, uint64& nWeight)
 {
     wallet->GetStakeWeightFromValue(nTime, nValue, nWeight);

src/qt/walletmodel.h

@@ -95,6 +95,9 @@ class WalletModel : public QObject
     bool changePassphrase(const SecureString &oldPass, const SecureString &newPass);
     // Wallet backup
     bool backupWallet(const QString &filename);
+    //Wallet Inport/Export
+    bool dumpWallet(const QString &filename);
+    bool importWallet(const QString &filename);
     //PoS Information about value and time
     void getStakeWeightFromValue(const qint64& nTime, const qint64& nValue, quint64& nWeight);