public async Task <FtpClientResponse> ReadAsync(FtpConfig config, Func <string, Task <string> > securePasswordCallBack,
Func <string, string, string, MemoryStream, string, string, bool> copyFileFunc)
{
var response = new FtpClientResponse {
ErrorMessage = FtpConstants.NoError, Status = FtpConstants.SuccessStatus, FileData = new List <FtpClientResponseFile>()
};
try
{
await CreateFtpClientAsync(config, securePasswordCallBack);
Func <FtpListItem, bool> predicate = f => f.Type == FtpFileSystemObjectType.File;
if (!string.IsNullOrEmpty(config.Ftp.FilenameRegex))
{
var rx = new Regex(config.Ftp.FilenameRegex, RegexOptions.IgnoreCase);
predicate = f => f.Type == FtpFileSystemObjectType.File && rx.IsMatch(f.Name);
}
var listOfFiles = _ftpPolicyRegistry.GetPolicy(FtpPolicyName.FtpCommandPolicy)
.Execute((context) => _ftpClient.GetListing(config.Ftp.Path).Where(predicate), new Polly.Context($"LIST_FILE_{config.Ftp.Path}"));
if (!string.IsNullOrEmpty(config.Ftp.ArchivedPath) && config.Ftp.ArchivedPath != config.Ftp.Path)
{
var folderExisted = _ftpClient.DirectoryExists(config.Ftp.ArchivedPath);
if (!folderExisted)
{
_ftpPolicyRegistry.GetPolicy(FtpPolicyName.FtpCommandPolicy).Execute((context) => _ftpClient.CreateDirectory(config.Ftp.ArchivedPath), new Polly.Context("CREATE_ARCHIVE_FOLDER"));
}
}
var resolvedStorageAccountKey =
await securePasswordCallBack.Invoke(config.AzureBlobStorage.StorageKeyVault);
foreach (var item in listOfFiles)
{
bool copied = false;
bool isArchived = false;
try
{
var fileName = item.Name;
using (var istream = await _ftpClient.OpenReadAsync(item.FullName))
{
MemoryStream memoryStream = new MemoryStream();
istream.CopyTo(memoryStream);
memoryStream.Position = 0;
copied = copyFileFunc.Invoke(config.AzureBlobStorage.ContainerName,
fileName,
config.Retry.StorageRetryPolicy, memoryStream, config.AzureBlobStorage.StorageAccountName, resolvedStorageAccountKey);
}
if (copied && !string.IsNullOrEmpty(config.Ftp.ArchivedPath) && config.Ftp.ArchivedPath != config.Ftp.Path)
{
isArchived = _ftpPolicyRegistry.GetPolicy(FtpPolicyName.FtpCommandPolicy).Execute((context) => _ftpClient.MoveFile(item.FullName, config.Ftp.ArchivedPath + "\\" + item.Name, FtpExists.Overwrite), new Polly.Context("COPY_FILE_TO_ARCHIVE"));
}
else if (config.Ftp.ArchivedPath == config.Ftp.Path)
{
//delete mode
isArchived = _ftpPolicyRegistry.GetPolicy(FtpPolicyName.FtpCommandPolicy).Execute((context) =>
{
_ftpClient.DeleteFile(item.FullName);
return(true);
}, new Polly.Context("DELETE_FILE_TO_ARCHIVE"));
}
var fres = new FtpClientResponseFile
{
Status = (copied && isArchived) ? FtpConstants.SuccessStatus : FtpConstants.FailureStatus,
FileName = item.Name,
ErrorMessage = (copied ? string.Empty : FtpConstants.BlobUploadError) + " " + (isArchived ? string.Empty : FtpConstants.ArchivedError)
};
response.FileData.Add(fres);
}
catch (Exception ex)
{
_logger.LogError(ex, $"ActorFtpClient failed to process the file {item.Name}, copy: {copied}, archived {isArchived}. Error: {ex.Message}");
}
}
await Stop();
}
catch (Exception e)
{
response.ErrorMessage = response.ErrorMessage + e.Message;
response.Status = FtpConstants.FailureStatus;
_logger.LogError(e, $"ActorFtpClient failed to start creating the client of {config.Ftp.Host} : {e.Message}");
}
return(response);
}