} // func ParseFtpDateTime
/// <summary></summary>
/// <typeparam name="T"></typeparam>
/// <param name="path"></param>
/// <param name="searchPattern"></param>
/// <param name="searchOption"></param>
/// <param name="encoding"></param>
/// <returns></returns>
public IEnumerable <T> Enumerate <T>(string path = null, string searchPattern = null, SearchOption searchOption = SearchOption.TopDirectoryOnly, Encoding encoding = null)
where T : FtpItem
{
var subFolders = new Stack <string>();
subFolders.Push(path);
var filterExpr = Procs.GetFilerFunction(searchPattern, true);
var attributeConverter = new FtpItemAtributesConverter();
var isDirectoriesAllowed = typeof(T).IsAssignableFrom(typeof(FtpDirectory));
var isFilesAllowed = typeof(T).IsAssignableFrom(typeof(FtpFile));
while (subFolders.Count > 0)
{
var currentPath = subFolders.Pop();
using (var response = OpenRequest(WebRequestMethods.Ftp.ListDirectoryDetails, currentPath))
using (var sr = new StreamReader(response.GetResponseStream(), encoding ?? Encoding.UTF8))
{
int pos;
string line;
while ((line = sr.ReadLine()) != null)
{
line = line.Trim();
// Rights (fix Länge 10 Zeichen)
var attributes = (FtpItemAttributes)attributeConverter.ConvertFromString(line.Substring(0, 10));
pos = 10;
ParseListColumn(line, ref pos); // Number of sub directories
var user = ParseListColumn(line, ref pos);
var group = ParseListColumn(line, ref pos);
// Size
if (!Int64.TryParse(ParseListColumn(line, ref pos), out var size))
{
size = -1;
}
// Date z.B. yyyy-mm-dd hh:mm oder mmm dd {yyyy | hh:mm}
var lastWrite = ParseFtpDateTime(line, ref pos);
// Filename
var name = line.Substring(pos).Trim();
if (name == "." || name == "..")
{
continue;
}
// return result
if ((attributes & FtpItemAttributes.Directory) != 0)
{
if (isDirectoriesAllowed && filterExpr(name))
{
yield return((T)(object)new FtpDirectory(this, currentPath, name, lastWrite, attributes));
}
if (searchOption == SearchOption.AllDirectories)
{
subFolders.Push(String.IsNullOrEmpty(currentPath) ? name : currentPath + '/' + name);
}
}
else if (isFilesAllowed && filterExpr(name))
{
yield return((T)(object)new FtpFile(this, currentPath, name, size, lastWrite, attributes));
}
}
}
}
} // proc Enumerate