[FTP adapter] LIST command not compatible with latest FileZilla server

[astehlik]

Bug Report

Providing options with the FTP LIST command (e.g. LIST -aln /) is not supported any more by the FileZilla server.

I'm not sure if the new behavior is violating any RFCs or if allowing options is actually a non Standard behavior.

My suggestion would be to add an option that disables the usage of LIST options (which seems to fix the issue).

Q	A
BC Break	no
Version	2.3.2

Summary

Version 1.1.0 of the FileZilla server does not allow arguments in the LIST command any more.

This command works:

LIST /

This fails with 450 - Couldn't open the file

LIST -aln /

How to reproduce

Try listing files with the latest FileZilla server as remote:

// This will always return an empty list with a FileZilla server
// even if there are files / directories in the root directory.
FilesystemOperator::listContents('')

This is the log output of the FileZilla server:

Hint

It took me a while to figure out the problem because I got a totally unrelated error.

The listContents() call does not throw an Exception, it simply returns an empty list.

But when you upload a file after listing the contents (in the same request) you get an error:

Warning: ftp_fput(): Unable to build data connection: ECONNABORTED - Connection aborted

I hope this helps when someone has a similar issue.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[marvinschroeder]

We also run into this problem with FileZilla Server v1.3.0

[Xinecraft]

I also got an empty array for a few FTP servers but works fine on others. After some debugging found that removing -aln from the ftp_rawlist in the package works. Checking this issues page earlier would have saved some hours of debugging. 😅

[frankdejonge]

@Xinecraft what type of FTP server is that?

[Xinecraft]

Seems like Multicraft 2.3.5 FTP Server. It's a Minecraft server management panel lot of hosting companies use. Don't know what running use under the hood. It get installed in both Windows and Linux

@Xinecraft what type of FTP server is that?

[LiaraAlis]

I can confirm this. Would be good if this issue can be resolved.

[frankdejonge]

Please upgrade to 3.4.0 or above to resolve this issue.