Export seed menu item

lib/Cargo.lock

@@ -1051,7 +1051,7 @@ version = "0.1.0"
 dependencies = [
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.65 (registry+https://github.com/rust-lang/crates.io-index)",
- "zecwalletlitelib 0.1.0 (git+https://github.com/adityapk00/zecwallet-light-cli?rev=50d331b0cfe1b3c4b81e33fd6febb4b24264627a)",
+ "zecwalletlitelib 0.1.0 (git+https://github.com/adityapk00/zecwallet-light-cli?rev=3e1c61a4b0589be1ff7590cf4ddf025a9160c631)",
 ]
 
 [[package]]
@@ -2266,7 +2266,7 @@ dependencies = [
 [[package]]
 name = "zecwalletlitelib"
 version = "0.1.0"
-source = "git+https://github.com/adityapk00/zecwallet-light-cli?rev=50d331b0cfe1b3c4b81e33fd6febb4b24264627a#50d331b0cfe1b3c4b81e33fd6febb4b24264627a"
+source = "git+https://github.com/adityapk00/zecwallet-light-cli?rev=3e1c61a4b0589be1ff7590cf4ddf025a9160c631#3e1c61a4b0589be1ff7590cf4ddf025a9160c631"
 dependencies = [
  "base58 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "bellman 0.1.0 (git+https://github.com/adityapk00/librustzcash.git?rev=188537ea025fcb7fbdfc11266f307a084a5451e4)",
@@ -2562,4 +2562,4 @@ dependencies = [
 "checksum zcash_client_backend 0.0.0 (git+https://github.com/adityapk00/librustzcash.git?rev=188537ea025fcb7fbdfc11266f307a084a5451e4)" = "<none>"
 "checksum zcash_primitives 0.0.0 (git+https://github.com/adityapk00/librustzcash.git?rev=188537ea025fcb7fbdfc11266f307a084a5451e4)" = "<none>"
 "checksum zcash_proofs 0.0.0 (git+https://github.com/adityapk00/librustzcash.git?rev=188537ea025fcb7fbdfc11266f307a084a5451e4)" = "<none>"
-"checksum zecwalletlitelib 0.1.0 (git+https://github.com/adityapk00/zecwallet-light-cli?rev=50d331b0cfe1b3c4b81e33fd6febb4b24264627a)" = "<none>"
+"checksum zecwalletlitelib 0.1.0 (git+https://github.com/adityapk00/zecwallet-light-cli?rev=3e1c61a4b0589be1ff7590cf4ddf025a9160c631)" = "<none>"

src/controller.h

@@ -81,6 +81,7 @@ public:
             cb({ {"error", "Failed to unlock wallet"} });
         });
     }
+
     void fetchAllPrivKeys(const std::function<void(json)> cb) { 
         unlockIfEncrypted([=] () {
             zrpc->fetchAllPrivKeys(cb); 
@@ -90,6 +91,15 @@ public:
         });
     }
 
+    void fetchSeed(const std::function<void(json)> cb) {
+        unlockIfEncrypted([=] () {
+            zrpc->fetchSeed(cb); 
+        },
+        [=]() {
+            cb({ {"error", "Failed to unlock wallet"} });
+        });
+    }
+
     // void importZPrivKey(QString addr, bool rescan, const std::function<void(json)>& cb) { zrpc->importZPrivKey(addr, rescan, cb); }
     // void importTPrivKey(QString addr, bool rescan, const std::function<void(json)>& cb) { zrpc->importTPrivKey(addr, rescan, cb); }
 

src/liteinterface.cpp

@@ -56,6 +56,13 @@ void LiteInterface::fetchPrivKey(QString addr, const std::function<void(json)>&
     conn->doRPCWithDefaultErrorHandling("export", addr, cb);
 }
 
+void LiteInterface::fetchSeed(const std::function<void(json)>& cb) {
+    if (conn == nullptr)
+        return;
+
+    conn->doRPCWithDefaultErrorHandling("seed", "", cb);
+}
+
 void LiteInterface::fetchBalance(const std::function<void(json)>& cb) {
     if (conn == nullptr)
         return;

src/liteinterface.h

@@ -52,6 +52,7 @@ public:
 
     void fetchPrivKey(QString addr, const std::function<void(json)>& cb);
     void fetchAllPrivKeys(const std::function<void(json)>);
+    void fetchSeed(const std::function<void(json)>&);
 
     void saveWallet(const std::function<void(json)>& cb);
 

src/mainwindow.cpp

@@ -91,7 +91,7 @@ MainWindow::MainWindow(QWidget *parent) :
     QObject::connect(ui->actionExport_All_Private_Keys, &QAction::triggered, this, &MainWindow::exportAllKeys);
 
     // Backup wallet.dat
-    QObject::connect(ui->actionBackup_wallet_dat, &QAction::triggered, this, &MainWindow::backupWalletDat);
+    QObject::connect(ui->actionExport_Seed, &QAction::triggered, this, &MainWindow::exportSeed);
 
     // Export transactions
     QObject::connect(ui->actionExport_transactions, &QAction::triggered, this, &MainWindow::exportTransactions);
@@ -648,36 +648,60 @@ void MainWindow::exportTransactions() {
 } 
 
 /**
- * Backup the wallet.dat file. This is kind of a hack, since it has to read from the filesystem rather than an RPC call
+ * Export the seed phrase.
- * This might fail for various reasons - Remote zcashd, non-standard locations, custom params passed to zcashd, many others
 */
-void MainWindow::backupWalletDat() {
+void MainWindow::exportSeed() {
     if (!rpc->getConnection())
         return;
 
-    // QDir zcashdir(rpc->getConnection()->config->zcashDir);
+    QDialog d(this);
-    // QString backupDefaultName = "zcash-wallet-backup-" + QDateTime::currentDateTime().toString("yyyyMMdd") + ".dat";
+    Ui_PrivKey pui;
-
+    pui.setupUi(&d);
-    // if (Settings::getInstance()->isTestnet()) {
-    //     zcashdir.cd("testnet3");
-    //     backupDefaultName = "testnet-" + backupDefaultName;
-    // }
     
-    // QFile wallet(zcashdir.filePath("wallet.dat"));
+    // Make the window big by default
-    // if (!wallet.exists()) {
+    auto ps = this->geometry();
-    //     QMessageBox::critical(this, tr("No wallet.dat"), tr("Couldn't find the wallet.dat on this computer") + "\n" +
+    QMargins margin = QMargins() + 50;
-    //         tr("You need to back it up from the machine zcashd is running on"), QMessageBox::Ok);
+    d.setGeometry(ps.marginsRemoved(margin));
-    //     return;
-    // }
-    
-    // QUrl backupName = QFileDialog::getSaveFileUrl(this, tr("Backup wallet.dat"), backupDefaultName, "Data file (*.dat)");
-    // if (backupName.isEmpty())
-    //     return;
 
-    // if (!wallet.copy(backupName.toLocalFile())) {
+    Settings::saveRestore(&d);
-    //     QMessageBox::critical(this, tr("Couldn't backup"), tr("Couldn't backup the wallet.dat file.") + 
+
-    //         tr("You need to back it up manually."), QMessageBox::Ok);
+    pui.privKeyTxt->setPlainText(tr("This might take several minutes. Loading..."));
-    // }
+    pui.privKeyTxt->setReadOnly(true);
+    pui.privKeyTxt->setLineWrapMode(QPlainTextEdit::LineWrapMode::NoWrap);
+
+    pui.helpLbl->setText(tr("This is your wallet seed. Please back it up carefully and safely."));
+
+    // Disable the save button until it finishes loading
+    pui.buttonBox->button(QDialogButtonBox::Save)->setEnabled(false);
+    pui.buttonBox->button(QDialogButtonBox::Ok)->setVisible(false);
+
+    // Wire up save button
+    QObject::connect(pui.buttonBox->button(QDialogButtonBox::Save), &QPushButton::clicked, [=] () {
+        QString fileName = QFileDialog::getSaveFileName(this, tr("Save File"),
+                           "zcash-seed.txt");
+        QFile file(fileName);
+        if (!file.open(QIODevice::WriteOnly)) {
+            QMessageBox::information(this, tr("Unable to open file"), file.errorString());
+            return;
+        }        
+        QTextStream out(&file);
+        out << pui.privKeyTxt->toPlainText();
+    });
+
+    rpc->fetchSeed([=](json reply) {
+         if (isJsonError(reply)) {
+            pui.privKeyTxt->setPlainText(tr("Error loading wallet seed: ") + QString::fromStdString(reply["error"]));
+            pui.buttonBox->button(QDialogButtonBox::Save)->setEnabled(false);
+
+            return;
+        }
+
+        pui.privKeyTxt->setPlainText(QString::fromStdString(reply.dump()));
+        pui.buttonBox->button(QDialogButtonBox::Save)->setEnabled(true);
+    });
+
+    
+    d.exec();
 }
 
 void MainWindow::exportAllKeys() {
@@ -685,6 +709,9 @@ void MainWindow::exportAllKeys() {
 }
 
 void MainWindow::exportKeys(QString addr) {
+    if (!rpc->getConnection())
+        return;
+
     bool allKeys = addr.isEmpty() ? true : false;
 
     QDialog d(this);

src/mainwindow.h

@@ -120,7 +120,7 @@ private:
     void importPrivKey();
     void exportAllKeys();
     void exportKeys(QString addr = "");
-    void backupWalletDat();
+    void exportSeed();
     void exportTransactions();
 
     void doImport(QList<QString>* keys);

src/mainwindow.ui

@@ -1099,7 +1099,7 @@
     <addaction name="actionPay_URI"/>
     <addaction name="separator"/>
     <addaction name="actionExport_All_Private_Keys"/>
-    <addaction name="actionBackup_wallet_dat"/>
+    <addaction name="actionExport_Seed"/>
     <addaction name="separator"/>
     <addaction name="actionExport_transactions"/>
     <addaction name="separator"/>
@@ -1178,9 +1178,9 @@
     <string>Ctrl+B</string>
    </property>
   </action>
-  <action name="actionBackup_wallet_dat">
+  <action name="actionExport_Seed">
    <property name="text">
-    <string>&amp;Backup wallet.dat</string>
+    <string>&amp;Export seed phrase</string>
    </property>
   </action>
   <action name="actionExport_transactions">

src/settings.h

@@ -127,4 +127,10 @@ inline bool isJsonSuccess(const json& res) {
                     QString::fromStdString(res["result"].get<json::string_t>()) == "success";
 }
 
+inline bool isJsonError(const json& res) {
+    return res.find("result") != res.end() && 
+                    QString::fromStdString(res["result"].get<json::string_t>()) == "error";
+}
+
+
 #endif // SETTINGS_H