added passphrase confirmation

Duplicati/Server/webroot/ngax/scripts/controllers/ExportController.js

@@ -53,9 +53,12 @@ backupApp.controller("ExportController", function($scope, $routeParams, AppServi
         // Make checks that do not require user input
         $scope.fileEncrypted = false;
         if ($scope.UseEncryption && $scope.ExportType === "file") {
-            if (($scope.Passphrase || "").trim().length === 0) {
+            if (typeof $scope.Passphrase === 'undefined' || $scope.Passphrase.trim().length === 0) {
                 DialogService.dialog(gettextCatalog.getString("No passphrase entered"), gettextCatalog.getString("To export without a passphrase, uncheck the \"Encrypt file\" box"));
                 return;
+            } else if ($scope.Passphrase != $scope.ConfirmPassphrase) {
+                DialogService.dialog(gettextCatalog.getString('Error'), gettextCatalog.getString('The passwords do not match'));
+                return;
             } else {
                $scope.fileEncrypted = true;
             }

Duplicati/Server/webroot/ngax/templates/export.html

@@ -25,6 +25,10 @@
                 <label for="encryption-passphrase" translate>Passphrase</label>
                 <input type="password" name="encryption-password" id="encryption-passphrase" ng-model="Passphrase" placeholder="{{'Enter encryption passphrase' | translate}}" >
             </div>
+            <div class="input text" ng-show="UseEncryption && ExportType == 'file'">
+                <label for="encryption-passphrase" translate>Confirm passphrase</label>
+                <input type="password" name="confirm-encryption-password" id="confirm-encryption-passphrase" ng-model="ConfirmPassphrase" placeholder="{{'Confirm encryption passphrase' | translate}}" >
+            </div>
 
             <div class="buttons" ng-hide="Connecting">
                 <a href="#" class="submit" translate>Cancel</a>