/// <summary>
/// Checks if a file exists.
/// </summary>
/// <param name="path">A <see cref="String"/> representing the path to check.</param>
/// <returns>A <see cref="Boolean"/> indicating whether the file exists.</returns>
public bool FileExists(string path)
{
WINAPI.WIN32_FIND_DATA findData = new WINAPI.WIN32_FIND_DATA();
IntPtr hFindFile = WININET.FtpFindFirstFile(
_hConnect,
path,
ref findData,
WININET.INTERNET_FLAG_NO_CACHE_WRITE,
IntPtr.Zero);
try
{
if (hFindFile == IntPtr.Zero)
{
return(false);
}
return(true);
}
finally
{
if (hFindFile != IntPtr.Zero)
{
WININET.InternetCloseHandle(hFindFile);
}
}
}
extern public static int InternetFindNextFile(
[In] IntPtr hInternet,
[In][Out] ref WINAPI.WIN32_FIND_DATA findData);
extern public static IntPtr FtpFindFirstFile(
[In] IntPtr hConnect,
[In] string searchFile,
[In][Out] ref WINAPI.WIN32_FIND_DATA findFileData,
[In] int dwFlags,
[In] IntPtr dwContext);
/// <summary>
/// Gets details of all directories and their available FTP directory information from the current working FTP directory that match the directory mask.
/// </summary>
/// <returns>A <see cref="FtpDirectoryInfo[]"/> representing the directories in the current working directory that match the mask.</returns>
public FtpDirectoryInfo[] GetDirectories(string path)
{
WINAPI.WIN32_FIND_DATA findData = new WINAPI.WIN32_FIND_DATA();
IntPtr hFindFile = WININET.FtpFindFirstFile(
_hConnect,
path,
ref findData,
WININET.INTERNET_FLAG_NO_CACHE_WRITE,
IntPtr.Zero);
try
{
List <FtpDirectoryInfo> directories = new List <FtpDirectoryInfo>();
if (hFindFile == IntPtr.Zero)
{
if (Marshal.GetLastWin32Error() == WINAPI.ERROR_NO_MORE_FILES)
{
return(directories.ToArray());
}
else
{
Error();
return(directories.ToArray());
}
}
if ((findData.dfFileAttributes & WINAPI.FILE_ATTRIBUTE_DIRECTORY) == WINAPI.FILE_ATTRIBUTE_DIRECTORY)
{
FtpDirectoryInfo dir = new FtpDirectoryInfo(this, new string(findData.fileName).TrimEnd('\0'));
dir.LastAccessTime = findData.ftLastAccessTime.ToDateTime();
dir.LastWriteTime = findData.ftLastWriteTime.ToDateTime();
dir.CreationTime = findData.ftCreationTime.ToDateTime();
dir.Attributes = (FileAttributes)findData.dfFileAttributes;
directories.Add(dir);
}
findData = new WINAPI.WIN32_FIND_DATA();
while (WININET.InternetFindNextFile(hFindFile, ref findData) != 0)
{
if ((findData.dfFileAttributes & WINAPI.FILE_ATTRIBUTE_DIRECTORY) == WINAPI.FILE_ATTRIBUTE_DIRECTORY)
{
FtpDirectoryInfo dir = new FtpDirectoryInfo(this, new string(findData.fileName).TrimEnd('\0'));
dir.LastAccessTime = findData.ftLastAccessTime.ToDateTime();
dir.LastWriteTime = findData.ftLastWriteTime.ToDateTime();
dir.CreationTime = findData.ftCreationTime.ToDateTime();
dir.Attributes = (FileAttributes)findData.dfFileAttributes;
directories.Add(dir);
}
findData = new WINAPI.WIN32_FIND_DATA();
}
if (Marshal.GetLastWin32Error() != WINAPI.ERROR_NO_MORE_FILES)
{
Error();
}
return(directories.ToArray());
}
finally
{
if (hFindFile != IntPtr.Zero)
{
WININET.InternetCloseHandle(hFindFile);
}
}
}
private List <string> List(string mask, bool onlyDirectories)
{
WINAPI.WIN32_FIND_DATA findData = new WINAPI.WIN32_FIND_DATA();
IntPtr hFindFile = WININET.FtpFindFirstFile(
_hConnect,
mask,
ref findData,
WININET.INTERNET_FLAG_NO_CACHE_WRITE,
IntPtr.Zero);
try
{
List <string> files = new List <string>();
if (hFindFile == IntPtr.Zero)
{
if (Marshal.GetLastWin32Error() == WINAPI.ERROR_NO_MORE_FILES)
{
return(files);
}
else
{
Error();
return(files);
}
}
if (onlyDirectories && (findData.dfFileAttributes & WINAPI.FILE_ATTRIBUTE_DIRECTORY) == WINAPI.FILE_ATTRIBUTE_DIRECTORY)
{
files.Add(new string(findData.fileName).TrimEnd('\0'));
}
else if (!onlyDirectories)
{
files.Add(new string(findData.fileName).TrimEnd('\0'));
}
findData = new WINAPI.WIN32_FIND_DATA();
while (WININET.InternetFindNextFile(hFindFile, ref findData) != 0)
{
if (onlyDirectories && (findData.dfFileAttributes & WINAPI.FILE_ATTRIBUTE_DIRECTORY) == WINAPI.FILE_ATTRIBUTE_DIRECTORY)
{
files.Add(new string(findData.fileName).TrimEnd('\0'));
}
else if (!onlyDirectories)
{
files.Add(new string(findData.fileName).TrimEnd('\0'));
}
findData = new WINAPI.WIN32_FIND_DATA();
}
if (Marshal.GetLastWin32Error() != WINAPI.ERROR_NO_MORE_FILES)
{
Error();
}
return(files);
}
finally
{
if (hFindFile != IntPtr.Zero)
{
WININET.InternetCloseHandle(hFindFile);
}
}
}