Example #1
0
        private async void OpenFileDialog()
        {
            if (SelectedUser == null)
            {
                return;
            }
            var dialog = new OpenFileDialog();

            if (dialog.ShowDialog() == true)
            {
                if (Message.Attachments == null)
                {
                    Message.Attachments = new ObservableCollection <Attachment>();
                }
                //todo multiselect
                var pathItems  = dialog.FileName.Split('\\');
                var attachment = new Attachment
                {
                    Document = new Document {
                        FullName = pathItems.Last()
                    },
                    Type = "doc",
                    Path = string.Join("//", pathItems.Take(pathItems.Length - 2)) //отрезали имя файла
                };
                Message.Attachments.Add(attachment);
                OnPropertyChanged("Message");

                var fileNameHash = _cryptTool.CreateHash(dialog.FileName) + ".txt";

                var key          = _cryptTool.EncryptFile(dialog.FileName, fileNameHash);
                var uploadedFile = await UploadFile(fileNameHash, SelectedUser.Id, attachment);

                File.Delete(fileNameHash);
                if (uploadedFile == null)
                {
                    Message.Attachments.Remove(attachment);
                    return;
                }

                attachment.Document.Id           = uploadedFile.Id;
                attachment.Document.OwnerId      = uploadedFile.OwnerId;
                attachment.Document.Url          = uploadedFile.Url;
                attachment.Document.FileName     = uploadedFile.FileName;
                attachment.EncryptedSymmetricKey = key;
            }
        }