public async Task <string> SaveFileSendAsync(Send send, SendFileData data, long fileLength)
{
if (send.Type != SendType.File)
{
throw new BadRequestException("Send is not of type \"file\".");
}
if (fileLength < 1)
{
throw new BadRequestException("No file data.");
}
var storageBytesRemaining = await StorageRemainingForSendAsync(send);
if (storageBytesRemaining < fileLength)
{
throw new BadRequestException("Not enough storage available.");
}
var fileId = Utilities.CoreHelpers.SecureRandomString(32, upper: false, special: false);
try
{
data.Id = fileId;
data.Size = fileLength;
data.Validated = false;
send.Data = JsonConvert.SerializeObject(data,
new JsonSerializerSettings {
NullValueHandling = NullValueHandling.Ignore
});
await SaveSendAsync(send);
return(await _sendFileStorageService.GetSendFileUploadUrlAsync(send, fileId));
}
catch
{
// Clean up since this is not transactional
await _sendFileStorageService.DeleteFileAsync(send, fileId);
throw;
}
}
public async Task <SendFileUploadDataResponseModel> RenewFileUpload(string id, string fileId)
{
var userId = _userService.GetProperUserId(User).Value;
var sendId = new Guid(id);
var send = await _sendRepository.GetByIdAsync(sendId);
var fileData = JsonConvert.DeserializeObject <SendFileData>(send?.Data);
if (send == null || send.Type != SendType.File || (send.UserId.HasValue && send.UserId.Value != userId) ||
!send.UserId.HasValue || fileData.Id != fileId || fileData.Validated)
{
// Not found if Send isn't found, user doesn't have access, request is faulty,
// or we've already validated the file. This last is to emulate create-only blob permissions for Azure
throw new NotFoundException();
}
return(new SendFileUploadDataResponseModel
{
Url = await _sendFileStorageService.GetSendFileUploadUrlAsync(send, fileId),
FileUploadType = _sendFileStorageService.FileUploadType,
SendResponse = new SendResponseModel(send, _globalSettings),
});
}