/// <summary> /// Konwertuje rozmiar pliku /// </summary> /// <param name="fd">Struktura z WIN32 API</param> /// <returns>Rozmiar pliku</returns> Int64 FoundSize2Long(WIN32_FIND_DATA fd) => (Convert.ToInt64(fd.nFileSizeHigh) << 32) + fd.nFileSizeLow;
/// <summary>
/// Pobiera plik zmodyfikowany po dacie ostatniej synchronizacji endpointu
/// </summary>
/// <param name="pFD">struktura opisuj¹ca plik lub katalog</param>
/// <returns>Czy dosz³o do pobrania pliku</returns>
private bool GetFile(WIN32_FIND_DATA pFD)
{
if ((pFD.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) > 0)
{
return(false);
}
long size = FoundSize2Long(pFD);
if (size == 0)
{
return(false);
}
DateTime lastWrite = FoundTime2DateTime(pFD.ftLastWriteTime);
switch (m_SyncMode)
{
case eSyncFileMode.NewerThenRefreshDate:
if (lastWrite < m_dtLastRefresh)
{
return(false);
}
break;
case eSyncFileMode.UniqueDateAndSizeOnDisk:
if (CheckLocalStorage(pFD.cFileName, size))
{
return(false);
}
break;
case eSyncFileMode.UniqueDateAndSizeInDatabase:
if (m_Disp.CheckDatabase(pFD.cFileName, size, lastWrite))
{
return(false);
}
break;
case eSyncFileMode.AllFiles:
break;
}
if (!FtpGetFile(hFtpSess, pFD.cFileName, m_sLocalDir + pFD.cFileName, false, FILE_ATTRIBUTE_NORMAL, (uint)m_TransferMode, iContext))
{
var dirsep = m_sRemoteDir.EndsWith('/')? string.Empty : "/";
throw new FtpUtilityException($"Kopiowanie {m_sHost}{m_sRemoteDir}{dirsep}{pFD.cFileName} do {m_sLocalDir} nie powiod³o siê");
}
if (m_mainWnd.m_checkTransferedStorage)
{
bool bStatus = CheckLocalStorage(pFD.cFileName, size);
if (!bStatus && File.Exists(m_sLocalDir + pFD.cFileName))
{
File.Delete(m_sLocalDir + pFD.cFileName);
}
return(bStatus);
}
if (m_Disp != null)
{
m_Disp.m_filesTransfered++;
}
return(true);
}
public static extern bool InternetFindNextFile(IntPtr hFind, [Out][In] WIN32_FIND_DATA lpFindFileData);
/// <summary>
/// £¹czy siê z endpointem i pobiera wszystkie pliki póŸniejsze ni¿ data ostatniego pobrania
/// </summary>
/// <param name="log">Informacja o skopiowanych plikach</param>
/// <returns>Tablice nazw pobranych plików oraz ich rozmiarów</returns>
public bool Download(ref FtpSyncModel log)
{
if (!CheckLocalDirectory() || !CheckDispatcher())
{
return(false);
}
Connect();
var lsFileNames = new List <string>();
var llFileSizes = new List <long>();
var ldFileDates = new List <DateTime>();
var pFD = new WIN32_FIND_DATA();
IntPtr hFind = FtpFindFirstFile(hFtpSess, IntPtr.Zero, pFD, INTERNET_FLAG_RELOAD, iContext);
if (hFind == IntPtr.Zero)
{
if (Marshal.GetLastWin32Error() != ERROR_NO_MORE_FILES)
{
throw new FtpUtilityException("B³¹d przegl¹dania zasobu " + m_sHost + m_sRemoteDir);
}
else
{
goto noFilesFound;
}
}
if (GetFile(pFD))
{
var size = FoundSize2Long(pFD);
var last = FoundTime2DateTime(pFD.ftLastWriteTime);
lsFileNames.Add(pFD.cFileName);
llFileSizes.Add(size);
ldFileDates.Add(last);
if (m_showError != null)
{
m_showError(eSeverityCode.FileInfo, $"1|{pFD.cFileName}|{size}|{last.ToBinary()}");
}
}
while (InternetFindNextFile(hFind, pFD) && m_Disp.InProgress)
{
if (GetFile(pFD))
{
var size = FoundSize2Long(pFD);
var last = FoundTime2DateTime(pFD.ftLastWriteTime);
lsFileNames.Add(pFD.cFileName);
llFileSizes.Add(size);
ldFileDates.Add(last);
if (m_showError != null)
{
m_showError(eSeverityCode.FileInfo, $"1|{pFD.cFileName}|{size}|{last.ToBinary()}");
}
}
}
if (m_Disp != null && !m_Disp.InProgress && m_showError != null)
{
m_showError(eSeverityCode.Message, $"Pobieranie z serwera {m_sHost}{m_sRemoteDir} zosta³o przerwane przez u¿ytkownika");
}
if (Marshal.GetLastWin32Error() != ERROR_NO_MORE_FILES)
{
throw new FtpUtilityException("B³¹d pobierania z zasobu " + m_sHost + m_sRemoteDir);
}
noFilesFound:
InternetCloseHandle(hFind);
Dispose();
log.fileNames = lsFileNames.ToArray();
log.fileSizes = llFileSizes.ToArray();
log.fileDates = ldFileDates.ToArray();
return(true);
}
public static extern IntPtr FtpFindFirstFile(IntPtr hConnect, IntPtr lpszSearchFile, [Out][In] WIN32_FIND_DATA lpFindFileData, UInt32 dwFlags, IntPtr dwContext);
