fix export wallet

src/js/controllers/export.js

@@ -15,6 +15,54 @@ angular.module('copayApp.controllers').controller('exportController',
       });
     };
 
+    function prepareWallet(cb) {
+      if ($scope.password) return cb($scope.password);
+
+      walletService.prepare(wallet, function(err, password) {
+        if (err) {
+          popupService.showAlert(gettextCatalog.getString('Error'), err);
+          return cb();
+        }
+        $scope.password = password;
+
+        walletService.getEncodedWalletInfo(wallet, $scope.password, function(err, code) {
+          if (err) {
+            popupService.showAlert(gettextCatalog.getString('Error'), gettextCatalog.getString('Could not decrypt private key'));
+            return cb(password);
+          }
+
+          $scope.file.value = false;
+
+          if (!code)
+            $scope.formData.supported = false;
+          else {
+            $scope.formData.supported = true;
+            $scope.formData.exportWalletInfo = code;
+          }
+
+          $timeout(function() {
+            $scope.$apply();
+          });
+          return cb(password);
+        });
+      });
+    };
+
+    $scope.generateQrCode = function() {
+      if ($scope.formData.exportWalletInfo) {
+        $scope.file.value = false;
+        $timeout(function() {
+          $scope.$apply();
+        });
+        return;
+      }
+
+      prepareWallet(function(password) {
+        if (!password) return;
+        $scope.password = password;
+      });
+    };
+
     var init = function() {
       $scope.formData = {};
       $scope.isEncrypted = wallet.isPrivKeyEncrypted();
@@ -25,23 +73,6 @@ angular.module('copayApp.controllers').controller('exportController',
       $scope.wallet = wallet;
       $scope.canSign = wallet.canSign();
 
-      walletService.getEncodedWalletInfo(wallet, function(err, code) {
-        if (err || !code) {
-          $log.warn(err);
-          return $ionicHistory.goBack();
-        }
-
-        if (!code)
-          $scope.formData.supported = false;
-        else {
-          $scope.formData.supported = true;
-          $scope.formData.exportWalletInfo = code;
-        }
-
-        $timeout(function() {
-          $scope.$apply();
-        }, 1);
-      });
     };
 
     /*
@@ -67,23 +98,28 @@ angular.module('copayApp.controllers').controller('exportController',
     };
 
     $scope.downloadWalletBackup = function() {
-      $scope.getAddressbook(function(err, localAddressBook) {
-        if (err) {
-          popupService.showAlert(gettextCatalog.getString('Error'), gettextCatalog.getString('Failed to export'));
-          return;
-        }
-        var opts = {
-          noSign: $scope.formData.noSignEnabled,
-          addressBook: localAddressBook
-        };
+      prepareWallet(function(password) {
+        if (!password) return;
 
-        backupService.walletDownload($scope.formData.password, opts, function(err) {
+        $scope.getAddressbook(function(err, localAddressBook) {
           if (err) {
             popupService.showAlert(gettextCatalog.getString('Error'), gettextCatalog.getString('Failed to export'));
             return;
           }
-          $ionicHistory.removeBackView();
-          $state.go('tabs.home');
+          var opts = {
+            noSign: $scope.formData.noSignEnabled,
+            addressBook: localAddressBook,
+            password: password
+          };
+
+          backupService.walletDownload($scope.formData.password, opts, function(err) {
+            if (err) {
+              popupService.showAlert(gettextCatalog.getString('Error'), gettextCatalog.getString('Failed to export'));
+              return;
+            }
+            $ionicHistory.removeBackView();
+            $state.go('tabs.home');
+          });
         });
       });
     };
@@ -171,6 +207,11 @@ angular.module('copayApp.controllers').controller('exportController',
 
     $scope.$on("$ionicView.beforeEnter", function(event, data) {
       init();
+      $scope.file = {
+        value: true
+      };
+      $scope.formData.exportWalletInfo = null;
+      $scope.password = null;
     });
 
   });

src/js/services/walletService.js

@@ -869,10 +869,9 @@ angular.module('copayApp.services').factory('walletService', function($log, $tim
     if (!root.isEncrypted(wallet)) return cb();
 
     askPassword(wallet.name, gettext('Enter Spending Password'), function(password) {
-      if (!password) return cb('no password');
-      if (!wallet.checkPassword(password)) return cb('wrong password');
+      if (!password) return cb('No password');
+      if (!wallet.checkPassword(password)) return cb('Wrong password');
 
-      wallet.credentials.decryptPrivateKey(password);
       return cb(null, password);
     });
   };
@@ -990,8 +989,7 @@ angular.module('copayApp.services').factory('walletService', function($log, $tim
     });
   };
 
-  root.getEncodedWalletInfo = function(wallet, cb) {
-
+  root.getEncodedWalletInfo = function(wallet, password, cb) {
     var derivationPath = wallet.credentials.getBaseAddressDerivationPath();
     var encodingType = {
       mnemonic: 1,
@@ -1004,23 +1002,21 @@ angular.module('copayApp.services').factory('walletService', function($log, $tim
     if (wallet.credentials.derivationStrategy != 'BIP44' || !wallet.canSign())
       return null;
 
-    root.getKeys(wallet, function(err, keys) {
-      if (err || !keys) return cb(err);
+    var keys = root.getKeysWithPassword(wallet, password);
 
-      if (keys.mnemonic) {
-        info = {
-          type: encodingType.mnemonic,
-          data: keys.mnemonic,
-        }
-      } else {
-        info = {
-          type: encodingType.xpriv,
-          data: keys.xPrivKey
-        }
+    if (keys.mnemonic) {
+      info = {
+        type: encodingType.mnemonic,
+        data: keys.mnemonic,
       }
-      return cb(null, info.type + '|' + info.data + '|' + wallet.credentials.network.toLowerCase() + '|' + derivationPath + '|' + (wallet.credentials.mnemonicHasPassphrase));
+    } else {
+      info = {
+        type: encodingType.xpriv,
+        data: keys.xPrivKey
+      }
+    }
 
-    });
+    return cb(null, info.type + '|' + info.data + '|' + wallet.credentials.network.toLowerCase() + '|' + derivationPath + '|' + (wallet.credentials.mnemonicHasPassphrase));
   };
 
   root.setTouchId = function(wallet, enabled, cb) {
@@ -1055,6 +1051,12 @@ angular.module('copayApp.services').factory('walletService', function($log, $tim
     });
   };
 
+  root.getKeysWithPassword = function(wallet, password) {
+    try {
+      return wallet.getKeys(password);
+    } catch (e) {}
+  }
+
   root.getViewStatus = function(wallet, txp) {
     var status = txp.status;
     var type;

www/views/export.html

@@ -5,17 +5,17 @@
     </ion-nav-back-button>
   </ion-nav-bar>
 
-  <ion-content ng-init="file = true">
-    <div class="row text-center top-tabs">
-      <div class="col" ng-click="file = true" ng-style="file && {'border-bottom-style': 'solid'}">
+  <ion-content>
+    <div class="row text-center">
+      <div class="col" ng-click="file.value = true" ng-style="file.value && {'border-bottom': '2px solid'}">
         <span class="" translate>File/Text</span>
       </div>
-      <div class="col" ng-click="file = false" ng-style="!file && {'border-bottom-style': 'solid'}">
+      <div class="col" ng-click="generateQrCode();" ng-style="!file.value && {'border-bottom': '2px solid'}">
         <span class="" translate>QR Code</span>
       </div>
     </div>
 
-    <div ng-include="'views/tab-export-file.html'" ng-if="file"></div>
-    <div ng-include="'views/tab-export-qrCode.html'" ng-if="!file"></div>
+    <div ng-include="'views/tab-export-file.html'" ng-if="file.value"></div>
+    <div ng-include="'views/tab-export-qrCode.html'" ng-if="!file.value"></div>
   </ion-content>
 </ion-view>