TF-296 Fix download file on browser

core/lib/data/network/download/download_manager.dart

@@ -1,6 +1,7 @@
 import 'dart:async';
 import 'dart:io';
-
+import 'package:http/http.dart' as http;
+import 'package:universal_html/html.dart' as html;
 import 'package:core/core.dart';
 import 'package:dio/dio.dart';
 
@@ -72,4 +73,31 @@ class DownloadManager {
     }
     return streamController.stream.first;
   }
+
+  Future<bool> downloadFileForWeb(String downloadUrl, String filename, String basicAuth) async {
+    final headerParam = Map<String, String>();
+    headerParam[HttpHeaders.authorizationHeader] = basicAuth;
+    headerParam[HttpHeaders.acceptHeader] = DioClient.jmapHeader;
+
+    http.Response res = await http.get(Uri.parse(downloadUrl), headers: headerParam);
+
+    if (res.statusCode == 200) {
+      final blob = html.Blob([res.bodyBytes]);
+      final url = html.Url.createObjectUrlFromBlob(blob);
+      final anchor = html.document.createElement('a') as html.AnchorElement
+        ..href = url
+        ..style.display = 'none'
+        ..download = filename;
+      html.document.body?.children.add(anchor);
+
+      anchor.click();
+
+      html.document.body?.children.remove(anchor);
+      html.Url.revokeObjectUrl(url);
+
+      return true;
+    }
+
+    return false;
+  }
 }

core/lib/presentation/views/dialog/downloading_file_dialog_builder.dart

@@ -1,6 +1,7 @@
 
 import 'package:core/core.dart';
 import 'package:flutter/cupertino.dart';
+import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 
 typedef OnCancelDownloadActionClick = void Function();
@@ -57,13 +58,13 @@ class DownloadingFileDialogBuilder {
           ),
         )),
       actions: [
-        TextButton(
-          onPressed: () {
-            if (_onCancelDownloadActionClick != null) {
-              _onCancelDownloadActionClick!();
-            }},
-          child: Text(_actionText, style: TextStyle(fontSize: 17.0, color: AppColor.appColor)),
-        )
+        if (_actionText.isNotEmpty)
+          Padding(
+            padding: EdgeInsets.only(bottom: kIsWeb ? 16 : 0, top: kIsWeb ? 16 : 0),
+            child: TextButton(
+              onPressed: () => _onCancelDownloadActionClick?.call(),
+              child: Text(_actionText, style: TextStyle(fontSize: 17.0, color: AppColor.appColor)),
+            ))
       ],
     );
   }

core/pubspec.yaml

@@ -76,6 +76,8 @@ dependencies:
   # collection
   collection: 1.15.0
 
+  universal_html: 2.0.8
+
 dev_dependencies:
   flutter_test:
     sdk: flutter

env.file

@@ -1 +1 @@
-SERVER_URL=https://dev.open-paas.org
+SERVER_URL=http://localhost

lib/features/composer/data/network/composer_api.dart

@@ -5,7 +5,6 @@ import 'dart:io';
 import 'package:core/core.dart';
 import 'package:dio/dio.dart';
 import 'package:model/model.dart';
-import 'package:tmail_ui_user/main/utils/app_logger.dart';
 
 class ComposerAPI {
 
@@ -14,7 +13,6 @@ class ComposerAPI {
   ComposerAPI(this._dioClient);
 
   Future<UploadResponse> uploadAttachment(UploadRequest uploadRequest) async {
-    log('uploadAttachment: fileInfo: ${uploadRequest.fileInfo.props}');
     final headerParam = _dioClient.getHeaders();
     headerParam[HttpHeaders.contentTypeHeader] = uploadRequest.fileInfo.mimeType;
     headerParam[HttpHeaders.contentLengthHeader] = uploadRequest.fileInfo.fileSize;

lib/features/email/data/datasource/email_datasource.dart

@@ -27,6 +27,13 @@ abstract class EmailDataSource {
     CancelToken cancelToken
   );
 
+  Future<bool> downloadAttachmentForWeb(
+    Attachment attachment,
+    AccountId accountId,
+    String baseDownloadUrl,
+    AccountRequest accountRequest,
+  );
+
   Future<List<EmailId>> moveToMailbox(AccountId accountId, MoveRequest moveRequest);
 
   Future<List<Email>> markAsStar(

lib/features/email/data/datasource_impl/email_datasource_impl.dart

@@ -113,4 +113,13 @@ class EmailDataSourceImpl extends EmailDataSource {
       throw error;
     });
   }
+
+  @override
+  Future<bool> downloadAttachmentForWeb(Attachment attachment, AccountId accountId, String baseDownloadUrl, AccountRequest accountRequest) {
+    return Future.sync(() async {
+      return await emailAPI.downloadAttachmentForWeb(attachment, accountId, baseDownloadUrl, accountRequest);
+    }).catchError((error) {
+      throw error;
+    });
+  }
 }

lib/features/email/data/network/email_api.dart

@@ -202,6 +202,19 @@ class EmailAPI {
       cancelToken: cancelToken);
   }
 
+  Future<bool> downloadAttachmentForWeb(
+      Attachment attachment,
+      AccountId accountId,
+      String baseDownloadUrl,
+      AccountRequest accountRequest,
+  ) async {
+    return _downloadManager.downloadFileForWeb(
+        attachment.getDownloadUrl(baseDownloadUrl, accountId),
+        attachment.name ?? '',
+        accountRequest.basicAuth,
+    );
+  }
+
   Future<List<EmailId>> moveToMailbox(AccountId accountId, MoveRequest moveRequest) async {
     final setEmailMethod = SetEmailMethod(accountId)
       ..addUpdates(moveRequest.emailIds

lib/features/email/data/repository/email_repository_impl.dart

@@ -103,4 +103,9 @@ class EmailRepositoryImpl extends EmailRepository {
   Future<Email?> updateEmailDrafts(AccountId accountId, Email newEmail, EmailId oldEmailId) {
     return emailDataSource.updateEmailDrafts(accountId, newEmail, oldEmailId);
   }
+
+  @override
+  Future<bool> downloadAttachmentForWeb(Attachment attachment, AccountId accountId, String baseDownloadUrl, AccountRequest accountRequest) {
+    return emailDataSource.downloadAttachmentForWeb(attachment, accountId, baseDownloadUrl, accountRequest);
+  }
 }

lib/features/email/domain/repository/email_repository.dart

@@ -27,6 +27,13 @@ abstract class EmailRepository {
     CancelToken cancelToken
   );
 
+  Future<bool> downloadAttachmentForWeb(
+    Attachment attachment,
+    AccountId accountId,
+    String baseDownloadUrl,
+    AccountRequest accountRequest,
+  );
+
   Future<List<EmailId>> moveToMailbox(AccountId accountId, MoveRequest moveRequest);
 
   Future<List<Email>> markAsStar(

lib/features/email/domain/state/download_attachment_for_web_state.dart

@@ -0,0 +1,18 @@
+import 'package:core/core.dart';
+
+class DownloadAttachmentForWebSuccess extends UIState {
+
+  DownloadAttachmentForWebSuccess();
+
+  @override
+  List<Object> get props => [];
+}
+
+class DownloadAttachmentForWebFailure extends FeatureFailure {
+  final exception;
+
+  DownloadAttachmentForWebFailure(this.exception);
+
+  @override
+  List<Object> get props => [exception];
+}

lib/features/email/domain/usecases/download_attachment_for_web_interactor.dart

@@ -0,0 +1,39 @@
+import 'dart:async';
+
+import 'package:core/core.dart';
+import 'package:dartz/dartz.dart';
+import 'package:jmap_dart_client/jmap/account_id.dart';
+import 'package:model/model.dart';
+import 'package:tmail_ui_user/features/email/domain/repository/email_repository.dart';
+import 'package:tmail_ui_user/features/email/domain/state/download_attachment_for_web_state.dart';
+import 'package:tmail_ui_user/features/login/domain/repository/credential_repository.dart';
+
+class DownloadAttachmentForWebInteractor {
+  final EmailRepository emailRepository;
+  final CredentialRepository credentialRepository;
+
+  DownloadAttachmentForWebInteractor(this.emailRepository, this.credentialRepository);
+
+  Stream<Either<Failure, Success>> execute(Attachment attachment, AccountId accountId, String baseDownloadUrl,) async* {
+    try {
+      final result = await Future.wait(
+        [credentialRepository.getUserName(), credentialRepository.getPassword()],
+        eagerError: true
+      ).then((List responses) async {
+        final accountRequest = AccountRequest(responses.first, responses.last);
+        return await emailRepository.downloadAttachmentForWeb(
+            attachment,
+            accountId,
+            baseDownloadUrl,
+            accountRequest);
+      });
+      if (result) {
+        yield Right<Failure, Success>(DownloadAttachmentForWebSuccess());
+      } else {
+        yield Left<Failure, Success>(DownloadAttachmentForWebFailure(null));
+      }
+    } catch (exception) {
+      yield Left<Failure, Success>(DownloadAttachmentForWebFailure(exception));
+    }
+  }
+}

lib/features/email/presentation/email_bindings.dart

@@ -10,6 +10,7 @@ import 'package:tmail_ui_user/features/email/data/local/html_analyzer.dart';
 import 'package:tmail_ui_user/features/email/data/network/email_api.dart';
 import 'package:tmail_ui_user/features/email/data/repository/email_repository_impl.dart';
 import 'package:tmail_ui_user/features/email/domain/repository/email_repository.dart';
+import 'package:tmail_ui_user/features/email/domain/usecases/download_attachment_for_web_interactor.dart';
 import 'package:tmail_ui_user/features/email/domain/usecases/download_attachments_interactor.dart';
 import 'package:tmail_ui_user/features/email/domain/usecases/export_attachment_interactor.dart';
 import 'package:tmail_ui_user/features/email/domain/usecases/get_email_content_interactor.dart';
@@ -38,6 +39,7 @@ class EmailBindings extends BaseBindings {
         Get.find<ExportAttachmentInteractor>(),
         Get.find<MoveToMailboxInteractor>(),
         Get.find<MarkAsStarEmailInteractor>(),
+        Get.find<DownloadAttachmentForWebInteractor>(),
     ));
   }
 
@@ -70,6 +72,10 @@ class EmailBindings extends BaseBindings {
     ));
     Get.lazyPut(() => MoveToMailboxInteractor(Get.find<EmailRepository>()));
     Get.lazyPut(() => MarkAsStarEmailInteractor(Get.find<EmailRepository>()));
+    Get.lazyPut(() => DownloadAttachmentForWebInteractor(
+      Get.find<EmailRepository>(),
+      Get.find<CredentialRepository>(),
+    ));
   }
 
   @override

lib/features/email/presentation/email_controller.dart

@@ -7,14 +7,17 @@ import 'package:jmap_dart_client/jmap/account_id.dart';
 import 'package:jmap_dart_client/jmap/mail/email/email.dart';
 import 'package:model/model.dart';
 import 'package:permission_handler/permission_handler.dart';
+import 'package:pointer_interceptor/pointer_interceptor.dart';
 import 'package:tmail_ui_user/features/base/base_controller.dart';
 import 'package:tmail_ui_user/features/destination_picker/presentation/model/destination_picker_arguments.dart';
 import 'package:tmail_ui_user/features/email/domain/model/move_request.dart';
+import 'package:tmail_ui_user/features/email/domain/state/download_attachment_for_web_state.dart';
 import 'package:tmail_ui_user/features/email/domain/state/download_attachments_state.dart';
 import 'package:tmail_ui_user/features/email/domain/state/export_attachment_state.dart';
 import 'package:tmail_ui_user/features/email/domain/state/get_email_content_state.dart';
 import 'package:tmail_ui_user/features/email/domain/state/move_to_mailbox_state.dart';
 import 'package:tmail_ui_user/features/email/domain/state/mark_as_email_star_state.dart';
+import 'package:tmail_ui_user/features/email/domain/usecases/download_attachment_for_web_interactor.dart';
 import 'package:tmail_ui_user/features/email/domain/usecases/download_attachments_interactor.dart';
 import 'package:tmail_ui_user/features/email/domain/state/mark_as_email_read_state.dart';
 import 'package:tmail_ui_user/features/email/domain/usecases/export_attachment_interactor.dart';
@@ -43,6 +46,7 @@ class EmailController extends BaseController {
   final ExportAttachmentInteractor _exportAttachmentInteractor;
   final MoveToMailboxInteractor _moveToMailboxInteractor;
   final MarkAsStarEmailInteractor _markAsStarEmailInteractor;
+  final DownloadAttachmentForWebInteractor _downloadAttachmentForWebInteractor;
 
   final emailAddressExpandMode = ExpandMode.COLLAPSE.obs;
   final attachmentsExpandMode = ExpandMode.COLLAPSE.obs;
@@ -60,6 +64,7 @@ class EmailController extends BaseController {
     this._exportAttachmentInteractor,
     this._moveToMailboxInteractor,
     this._markAsStarEmailInteractor,
+    this._downloadAttachmentForWebInteractor,
   );
 
   @override
@@ -107,6 +112,8 @@ class EmailController extends BaseController {
           _downloadAttachmentsFailure(failure);
         } else if (failure is ExportAttachmentFailure) {
           _exportAttachmentFailureAction(failure);
+        } else if (failure is DownloadAttachmentForWebFailure) {
+          _downloadAttachmentForWebFailureAction(failure);
         }
       },
       (success) {
@@ -120,6 +127,8 @@ class EmailController extends BaseController {
           _moveToMailboxSuccess(success);
         } else if (success is MarkAsStarEmailSuccess) {
           _markAsEmailStarSuccess(success);
+        } else if (success is DownloadAttachmentForWebSuccess) {
+          _downloadAttachmentForWebSuccessAction(success);
         }
       });
   }
@@ -229,23 +238,35 @@ class EmailController extends BaseController {
 
   void exportAttachment(BuildContext context, Attachment attachment) {
     final cancelToken = CancelToken();
-    _showDownloadingFileDialog(context, attachment, cancelToken);
+    _showDownloadingFileDialog(context, attachment, cancelToken: cancelToken);
     _exportAttachmentAction(attachment, cancelToken);
   }
 
-  void _showDownloadingFileDialog(BuildContext context, Attachment attachment, CancelToken cancelToken) {
-    showCupertinoDialog(
-      context: context,
-      builder: (_) => (DownloadingFileDialogBuilder()
-          ..key(Key('downloading_file_dialog'))
-          ..title(AppLocalizations.of(context).preparing_to_export)
-          ..content(AppLocalizations.of(context).downloading_file(attachment.name ?? ''))
-          ..actionText(AppLocalizations.of(context).cancel)
-          ..addCancelDownloadActionClick(() {
-              cancelToken.cancel([AppLocalizations.of(context).user_cancel_download_file]);
-              popBack();
-            }))
-        .build());
+  void _showDownloadingFileDialog(BuildContext context, Attachment attachment, {CancelToken? cancelToken}) {
+    if (cancelToken != null) {
+      showCupertinoDialog(
+          context: context,
+          builder: (_) =>
+              PointerInterceptor(child: (DownloadingFileDialogBuilder()
+                    ..key(Key('downloading_file_dialog'))
+                    ..title(AppLocalizations.of(context).preparing_to_export)
+                    ..content(AppLocalizations.of(context).downloading_file(attachment.name ?? ''))
+                    ..actionText(AppLocalizations.of(context).cancel)
+                    ..addCancelDownloadActionClick(() {
+                      cancelToken.cancel([AppLocalizations.of(context).user_cancel_download_file]);
+                      popBack();
+                    }))
+                .build()));
+    } else {
+      showCupertinoDialog(
+          context: context,
+          builder: (_) =>
+              PointerInterceptor(child: (DownloadingFileDialogBuilder()
+                  ..key(Key('downloading_file_for_web_dialog'))
+                  ..title(AppLocalizations.of(context).preparing_to_save)
+                  ..content(AppLocalizations.of(context).downloading_file(attachment.name ?? '')))
+                .build()));
+    }
   }
 
   void _exportAttachmentAction(Attachment attachment, CancelToken cancelToken) async {
@@ -269,6 +290,28 @@ class EmailController extends BaseController {
     }
   }
 
+  void downloadAttachmentForWeb(Attachment attachment) {
+    _downloadAttachmentForWebAction(attachment);
+  }
+
+  void _downloadAttachmentForWebAction(Attachment attachment) async {
+    final accountId = mailboxDashBoardController.accountId.value;
+    if (accountId != null && mailboxDashBoardController.sessionCurrent != null) {
+      final baseDownloadUrl = mailboxDashBoardController.sessionCurrent!.getDownloadUrl();
+      consumeState(_downloadAttachmentForWebInteractor.execute(attachment, accountId, baseDownloadUrl));
+    }
+  }
+
+  void _downloadAttachmentForWebFailureAction(Failure failure) {
+    if (failure is DownloadAttachmentForWebFailure) {
+      popBack();
+    }
+  }
+
+  void _downloadAttachmentForWebSuccessAction(Success success) async {
+    popBack();
+  }
+
   void openDestinationPickerView(PresentationEmail email) async {
     final currentMailbox = mailboxDashBoardController.selectedMailbox.value;
     final accountId = mailboxDashBoardController.accountId.value;

lib/features/email/presentation/email_view.dart

@@ -1,6 +1,7 @@
 import 'dart:io';
 
 import 'package:core/core.dart';
+import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_svg/flutter_svg.dart';
 import 'package:get/get.dart';
@@ -221,10 +222,14 @@ class EmailView extends GetView {
                 ..setExpandMode((countAttachments - 1 == index) ? emailController.attachmentsExpandMode.value : null)
                 ..onExpandAttachmentActionClick(() => emailController.toggleDisplayAttachmentsAction())
                 ..onDownloadAttachmentFileActionClick((attachment) {
-                  if (Platform.isAndroid) {
-                    emailController.downloadAttachments(context, [attachment]);
+                  if (kIsWeb) {
+                    emailController.downloadAttachmentForWeb(attachment);
                   } else {
-                    emailController.exportAttachment(context, attachment);
+                    if (Platform.isAndroid) {
+                      emailController.downloadAttachments(context, [attachment]);
+                    } else if (Platform.isIOS) {
+                      emailController.exportAttachment(context, attachment);
+                    }
                   }
                 }))
             .build())

lib/main/localizations/app_localizations.dart

@@ -646,7 +646,7 @@ class AppLocalizations {
   String get create_new_mailbox_failure {
     return Intl.message(
         'Create new mailbox failure',
-        name: 'new_mailbox_is_created'
+        name: 'create_new_mailbox_failure'
     );
   }
 
@@ -729,4 +729,11 @@ class AppLocalizations {
       name: 'email_address_is_not_in_the_correct_format',
     );
   }
+
+  String get preparing_to_save {
+    return Intl.message(
+        'Preparing to save',
+        name: 'preparing_to_save'
+    );
+  }
 }

pubspec.yaml

@@ -130,9 +130,6 @@ dependencies:
   # fk_user_agent
   fk_user_agent: 2.1.0
 
-  # pointer_interceptor
-  pointer_interceptor: 0.9.3
-
 dev_dependencies:
   flutter_test:
     sdk: flutter

test/features/caching/email_cache_client_test.dart

@@ -1,3 +1,5 @@
+@TestOn('vm')
+
 import 'dart:io';
 
 import 'package:flutter_test/flutter_test.dart';

test/features/caching/mailbox_cache_client_test.dart

@@ -1,3 +1,5 @@
+@TestOn('vm')
+
 import 'dart:io';
 
 import 'package:flutter_test/flutter_test.dart';