public override void GetFilesFromSource(CertificateTask task, IList <CertificateFile> files)
{
var catalogId = task.DocumentLine.ProductEntity.CatalogProduct.Id;
var catalogs = GetSourceCatalog(catalogId, task.SerialNumber);
if (catalogs.Count == 0)
{
task.DocumentLine.CertificateError = "Нет записи в таблице перекодировки";
return;
}
foreach (var certificateSourceCatalog in catalogs)
{
var filename = certificateSourceCatalog.OriginFilePath;
var mask = String.Format("{0}*{1}", Path.GetFileNameWithoutExtension(filename), Path.GetExtension(filename));
var uri = new Uri(task.CertificateSource.LookupUrl);
var dir = Path.Combine(Path.GetDirectoryName(uri.AbsolutePath) ?? "",
Path.GetDirectoryName(certificateSourceCatalog.OriginFilePath) ?? "");
using (var ftpClient = new FTP_Client()) {
ftpClient.PassiveMode = true;
ftpClient.Connect(uri.Host, uri.Port);
var credentials = Util.GetCredentials(uri);
if (credentials != null)
{
ftpClient.Authenticate(credentials.UserName, credentials.Password);
}
else
{
ftpClient.Authenticate("anonymous", "");
}
if (!String.IsNullOrEmpty(dir))
{
ftpClient.SetCurrentDir(dir);
}
var ftpFiles = ftpClient.GetList();
var filesToDownload = ftpFiles.Tables["DirInfo"]
.AsEnumerable()
.Where(r => !Convert.ToBoolean(r["IsDirectory"]))
.Select(r => r["Name"].ToString())
.Where(n => FileHelper.CheckMask(n, mask))
.ToList();
foreach (var file in filesToDownload)
{
var tempFileName = Path.GetTempFileName();
ftpClient.ReceiveFile(file, tempFileName);
files.Add(new CertificateFile(
tempFileName,
certificateSourceCatalog.OriginFilePath,
file,
task.CertificateSource));
}
}
}
if (files.Count == 0)
{
task.DocumentLine.CertificateError = "Файл сертификата не найден на ftp поставщика";
}
}
/// <summary>
/// Пытается загрузить файл. После 3х неудачных попыток последнее исключение отдается наверх
/// </summary>
/// <param name="ftpClient">Объект FTP клиента</param>
/// <param name="fileInDirectory">Имя файла в текущей FTP директории</param>
/// <param name="downloadedFileName">Путь к файлу, куда он должен быть загружен</param>
private void ReceiveFile(FTP_Client ftpClient, string fileInDirectory, string downloadedFileName)
{
var countAttempts = 3;
for (var i = 0; i < countAttempts; i++)
{
try {
if (File.Exists(downloadedFileName))
{
_log.DebugFormat("Загрузка файла. Файл {0} уже существует. Удаляем", downloadedFileName);
File.Delete(downloadedFileName);
}
using (var fileStream = new FileStream(downloadedFileName, FileMode.CreateNew)) {
ftpClient.ReceiveFile(fileInDirectory, fileStream);
return;
}
}
catch (Exception) {
if (i >= countAttempts)
{
throw;
}
}
}
}
public static DownloadedFile GetFileFromSource(PriceSource source, string downHandlerPath)
{
var ftpHost = source.PricePath;
if (ftpHost.StartsWith(@"ftp://", StringComparison.OrdinalIgnoreCase))
{
ftpHost = ftpHost.Substring(6);
}
if (ftpHost.EndsWith(@"/"))
{
ftpHost = ftpHost.Substring(0, ftpHost.Length - 1);
}
var pricePath = source.FtpDir;
if (!pricePath.StartsWith(@"/", StringComparison.OrdinalIgnoreCase))
{
pricePath = @"/" + pricePath;
}
var ftpFileName = String.Empty;
var downFileName = String.Empty;
var shortFileName = String.Empty;
var priceDateTime = source.PriceDateTime;
using (var ftpClient = new FTP_Client()) {
ftpClient.PassiveMode = true;
ftpClient.Connect(ftpHost, 21);
ftpClient.Authenticate(source.FtpLogin, source.FtpPassword);
ftpClient.SetCurrentDir(pricePath);
var dsEntries = ftpClient.GetList();
foreach (DataRow entry in dsEntries.Tables["DirInfo"].Rows)
{
if (Convert.ToBoolean(entry["IsDirectory"]))
{
continue;
}
shortFileName = entry["Name"].ToString();
var priceMaskIsMatched = PriceProcessor.FileHelper.CheckMask(shortFileName, source.PriceMask);
if (priceMaskIsMatched)
{
var fileLastWriteTime = Convert.ToDateTime(entry["Date"]);
#if DEBUG
priceDateTime = fileLastWriteTime;
ftpFileName = shortFileName;
#endif
if (((fileLastWriteTime.CompareTo(priceDateTime) > 0) &&
(DateTime.Now.Subtract(fileLastWriteTime).TotalMinutes > Settings.Default.FileDownloadInterval)) ||
((fileLastWriteTime.CompareTo(DateTime.Now) > 0) && (fileLastWriteTime.Subtract(priceDateTime).TotalMinutes > 0)))
{
priceDateTime = fileLastWriteTime;
ftpFileName = shortFileName;
}
}
}
if (String.IsNullOrEmpty(ftpFileName))
{
return(null);
}
downFileName = Path.Combine(downHandlerPath, ftpFileName);
using (var file = new FileStream(downFileName, FileMode.Create))
ftpClient.ReceiveFile(ftpFileName, file);
}
return(new DownloadedFile(downFileName, priceDateTime));
}
