Sample code for parsing FtpwebRequest response for ListDirectoryDetails

FtpwebRequest response for ListDirectoryDetails

Sim — Thu, 09 Nov 2006 23:31:35 GMT

Getting the following error while doing this:

using (FtpWebResponse response = (FtpWebResponse)ftp.GetResponse())

The Remote Server returned an error:(550) File unavailable(e.g., file not found, no access)

Some corrections

Steffen Xavier xsteffen@ict7.com — Tue, 08 May 2007 15:38:55 GMT

Replace:

string[] strs = processstr.Split(new char[] { ' ' }, true);

processstr = strs[1];

By:

processstr = processstr.Remove(0,processstr.IndexOf(' ') + 1);

Otherwise you truncate file name with white spaces.

f.CreateTime = DateTime.Parse(dateStr + " " + timeStr); Can throw a InvalidFormatException. Replace by

f.CreateTime = DateTime.Parse(dateStr + " " + timeStr, CultureInfo.GetCultureInfo("en-US"));

Thanks for you code. He help me.

re: Sample code for parsing FtpwebRequest response for ListDirectoryDetails

Atam — Mon, 18 Jun 2007 12:06:10 GMT

Thanks, saved me some time reverse engineering the crap out of this streamreader:)

re: Sample code for parsing FtpwebRequest response for ListDirectoryDetails

DeMi — Tue, 25 Sep 2007 12:22:15 GMT

Hay,

Here some code using Regular Expressions which makes life a little easier (besides making the regular expression ;-)

public class FTPLineParser

{

private Regex unixStyle = new Regex(@"^(?<dir>[-dl])(?<ownerSec>[-r][-w][-x])(?<groupSec>[-r][-w][-x])(?<everyoneSec>[-r][-w][-x])\s+(?:\d)\s+(?<owner>\w+)\s+(?<group>\w+)\s+(?<size>\d+)\s+(?<month>\w+)\s+(?<day>\d{1,2})\s+(?<hour>\d{1,2}):(?<minutes>\d{1,2})\s+(?<name>.*)$");

private Regex winStyle = new Regex(@"^(?<month>\d{1,2})-(?<day>\d{1,2})-(?<year>\d{1,2})\s+(?<hour>\d{1,2}):(?<minutes>\d{1,2})(?<ampm>am|pm)\s+(?<dir>[<]dir[>])?\s+(?<size>\d+)?\s+(?<name>.*)$");

public FTPLineResult Parse(string line)

{

Match match = unixStyle.Match(line);

if (match.Success)

{

return ParseMatch(match.Groups, ListStyle.Unix);

}

match = winStyle.Match(line);

if (match.Success)

{

return ParseMatch(match.Groups, ListStyle.Unix);

}

throw new Exception("Invalid line format");

}

private FTPLineResult ParseMatch(GroupCollection matchGroups, ListStyle style)

{

string dirMatch = (style == ListStyle.Unix ? "d" : "<dir>");

FTPLineResult result = new FTPLineResult();

result.Style = style;

result.IsDirectory = matchGroups["dir"].Value.Equals(dirMatch, StringComparison.InvariantCultureIgnoreCase);

result.Name = matchGroups["name"].Value;

if (!result.IsDirectory)

result.Size = long.Parse(matchGroups["size"].Value);

return result;

}

public enum ListStyle

{

Unix,

Windows

}

public class FTPLineResult

{

public ListStyle Style;

public string Name;

public DateTime DateTime;

public bool IsDirectory;

public long Size;

}

re: Sample code for parsing FtpwebRequest response for ListDirectoryDetails

DeMi — Tue, 25 Sep 2007 12:35:51 GMT

Hay, DeMi again.

I hit the <ENTER> to quick when adding my example :-O

Some details:

In my previous example its better to use the RegexOptions.IgnoreCase option in the RegEx constructor.

private Regex unixStyle = new Regex(@"^...$", RegexOptions.IgnoreCase);

private Regex winStyle = new Regex(@"^...$", RegexOptions.IgnoreCase);

To call the FTPLineParser you can use the code below:

//...

FtpWebResponse ftpResponse = (FtpWebResponse) ftpRequest.GetResponse();

Stream response = ftpResponse.GetResponseStream();

StreamReader responseReader = new StreamReader(response);

string line = null;

FTPLineParser parser = new FTPLineParser();

List<FTPLineResult> lines = new List<FTPLineResult>();

while ((line = responseReader.ReadLine()) != null)

{

FTPLineResult lineResult = parser.Parse(line);

lines.Add(lineResult);

}

DoSomethingWithTheParsedLines(lines);

Hope this is of some help for you.

Enjoy.

Dennis

re: Sample code for parsing FtpwebRequest response for ListDirectoryDetails

Bomzhang — Wed, 07 May 2008 07:31:31 GMT

Stop! Try to read this interested book:,

re: Sample code for parsing FtpwebRequest response for ListDirectoryDetails

Sntzjyhf — Sun, 15 Jun 2008 15:52:45 GMT

Try to look here and may be you find what do you want:,

re: Sample code for parsing FtpwebRequest response for ListDirectoryDetails

Kvovydtq — Wed, 25 Jun 2008 18:09:10 GMT

Of course, but what do you think about that?,

re: Sample code for parsing FtpwebRequest response for ListDirectoryDetails

DM — Tue, 07 Oct 2008 16:11:31 GMT

Do you know what is refactoring?

re: Sample code for parsing FtpwebRequest response for ListDirectoryDetails

Will — Fri, 24 Oct 2008 16:10:38 GMT

Do you have this sample written in VB code?

re: Sample code for parsing FtpwebRequest response for ListDirectoryDetails

Stephen — Wed, 29 Apr 2009 13:37:25 GMT

the date.pase() method which parses the concacated date and time was crapping out as my culture was "en-GB", it's betst to add a private field like

private CultureInfo _cultureInfo = CultureInfo.CreateSpecificCulture("en-US");

And then in the line where the date is parsed, it is changed to

f.CreateTime = DateTime.Parse(dateStr + " " + timeStr, _cultureInfo);

that way, it will know that it is parsing a US style date.

great work by the way, this has saved me at least two days of work!

re: Sample code for parsing FtpwebRequest response for ListDirectoryDetails

sunss — Wed, 13 May 2009 12:06:50 GMT

DeMi's alternative code seems to work as well (and seems a little neater!). The only bug I've found is changing the 2nd occurence of:

return ParseMatch(match.Groups, ListStyle.Unix);

return ParseMatch(match.Groups, ListStyle.Windows);

re: Sample code for parsing FtpwebRequest response for ListDirectoryDetails

tynar — Wed, 10 Jun 2009 14:11:42 GMT

Regex for FileZilla Server;

private Regex fileZilla = new Regex(@"(?<dir>[-dl])(?<ownerSec>)[-r][-w][-x](?<groupSec>)[-r][-w][-x](?<everyoneSec>)[-r][-w][-x]\s+(?:\d)\s+(?<owner>\w+)\s+(?<group>\w+)\s+(?<size>\d+)\s+(?<month>\w+)\s+(?<day>\d{1,2})\s+(?<year>\w+)\s+(?<name>.*)$");

match = fileZilla.Match(line);

if (match.Success)

{

return ParseMatch(match.Groups, ListStyle.Unix);

}

re: Sample code for parsing FtpwebRequest response for ListDirectoryDetails

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re: Sample code for parsing FtpwebRequest response for ListDirectoryDetails

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re: Sample code for parsing FtpwebRequest response for ListDirectoryDetails

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re: Sample code for parsing FtpwebRequest response for ListDirectoryDetails

virt — Tue, 21 Jul 2009 23:38:50 GMT

If your ftpsite requires authentication, use

FtpWebRequest ftpclientRequest = WebRequest.Create(args[0]) as FtpWebRequest;

ftpclientRequest.Credentials = new NetworkCredential("username", "password");

re: Sample code for parsing FtpwebRequest response for ListDirectoryDetails

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