Bitwarden import (#348)

lib/l10n/arb/app_en.arb

@@ -86,6 +86,7 @@
   "importSelectJsonFile": "Select JSON file",
   "importEnteEncGuide": "Select the encrypted JSON file exported from ente",
   "importRaivoGuide": "Use the \"Export OTPs to Zip archive\" option in Raivo's Settings.\n\nExtract the zip file and import the JSON file.",
+  "importBitwardenGuide": "Use the \"Export vault\" option within Bitwarden Tools and import the unencrypted JSON file.",
   "importAegisGuide": "Use the \"Export the vault\" option in Aegis's Settings.\n\nIf your vault is encrypted, you will need to enter vault password to decrypt the vault.",
   "exportCodes": "Export codes",
   "importLabel": "Import",

lib/ui/settings/data/import/bitwarden_import.dart

@@ -0,0 +1,103 @@
+import 'dart:async';
+import 'dart:convert';
+import 'dart:io';
+
+import 'package:ente_auth/l10n/l10n.dart';
+import 'package:ente_auth/models/code.dart';
+import 'package:ente_auth/services/authenticator_service.dart';
+import 'package:ente_auth/store/code_store.dart';
+import 'package:ente_auth/ui/components/buttons/button_widget.dart';
+import 'package:ente_auth/ui/components/dialog_widget.dart';
+import 'package:ente_auth/ui/components/models/button_type.dart';
+import 'package:ente_auth/ui/settings/data/import/import_success.dart';
+import 'package:ente_auth/utils/dialog_util.dart';
+import 'package:file_picker/file_picker.dart';
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+
+Future<void> showBitwardenImportInstruction(BuildContext context) async {
+  final l10n = context.l10n;
+  final result = await showDialogWidget(
+    context: context,
+    title: l10n.importFromApp("Bitwarden"),
+    body: l10n.importBitwardenGuide,
+    buttons: [
+      ButtonWidget(
+        buttonType: ButtonType.primary,
+        labelText: l10n.importSelectJsonFile,
+        isInAlert: true,
+        buttonSize: ButtonSize.large,
+        buttonAction: ButtonAction.first,
+      ),
+      ButtonWidget(
+        buttonType: ButtonType.secondary,
+        labelText: context.l10n.cancel,
+        buttonSize: ButtonSize.large,
+        isInAlert: true,
+        buttonAction: ButtonAction.second,
+      ),
+    ],
+  );
+  if (result?.action != null && result!.action != ButtonAction.cancel) {
+    if (result.action == ButtonAction.first) {
+      await _pickBitwardenJsonFile(context);
+    }
+  }
+}
+
+Future<void> _pickBitwardenJsonFile(BuildContext context) async {
+  final l10n = context.l10n;
+  FilePickerResult? result = await FilePicker.platform.pickFiles();
+  if (result == null) {
+    return;
+  }
+  final progressDialog = createProgressDialog(context, l10n.pleaseWait);
+  await progressDialog.show();
+  try {
+    String path = result.files.single.path!;
+    int? count = await _processBitwardenExportFile(context, path);
+    await progressDialog.hide();
+    if (count != null) {
+      await importSuccessDialog(context, count);
+    }
+  } catch (e) {
+    await progressDialog.hide();
+    await showErrorDialog(
+      context,
+      context.l10n.sorry,
+      context.l10n.importFailureDesc,
+    );
+  }
+}
+
+Future<int?> _processBitwardenExportFile(
+  BuildContext context,
+  String path,
+) async {
+  File file = File(path);
+  final jsonString = await file.readAsString();
+  final data = jsonDecode(jsonString);
+  List<dynamic> jsonArray = data['items'];
+  final parsedCodes = [];
+  for (var item in jsonArray) {
+    if (item['login']['totp'] != null) {
+      var issuer = item['name'];
+      var account = item['login']['username'];
+      var secret = item['login']['totp'];
+
+      parsedCodes.add(
+        Code.fromAccountAndSecret(
+          account,
+          issuer,
+          secret,
+        ),
+      );
+    }
+  }
+
+  for (final code in parsedCodes) {
+    await CodeStore.instance.addCode(code, shouldSync: false);
+  }
+  unawaited(AuthenticatorService.instance.onlineSync());
+  return parsedCodes.length;
+}

lib/ui/settings/data/import/import_service.dart

@@ -1,4 +1,5 @@
 import 'package:ente_auth/ui/settings/data/import/aegis_import.dart';
+import 'package:ente_auth/ui/settings/data/import/bitwarden_import.dart';
 import 'package:ente_auth/ui/settings/data/import/encrypted_ente_import.dart';
 import 'package:ente_auth/ui/settings/data/import/google_auth_import.dart';
 import 'package:ente_auth/ui/settings/data/import/plain_text_import.dart';
@@ -31,6 +32,9 @@ class ImportService {
       case ImportType.aegis:
         showAegisImportInstruction(context);
         break;
+      case ImportType.bitwarden:
+        showBitwardenImportInstruction(context);
+        break;
     }
   }
 }

lib/ui/settings/data/import_page.dart

@@ -15,6 +15,7 @@ enum ImportType {
   ravio,
   googleAuthenticator,
   aegis,
+  bitwarden,
 }
 
 class ImportCodePage extends StatelessWidget {
@@ -24,6 +25,7 @@ class ImportCodePage extends StatelessWidget {
     ImportType.ravio,
     ImportType.aegis,
     ImportType.googleAuthenticator,
+    ImportType.bitwarden,
   ];
 
   ImportCodePage({super.key});
@@ -40,6 +42,8 @@ class ImportCodePage extends StatelessWidget {
         return 'Google Authenticator';
       case ImportType.aegis:
         return 'Aegis Authenticator';
+      case ImportType.bitwarden:
+        return 'Bitwarden';
     }
   }