Open
Description
"OpenSSH for Windows" version
8.0.0.0 (v8.0.0.0p1-Beta)
Server OperatingSystem
Windows 10 Home
Client OperatingSystem
Windows 10 Home
What is failing
If connected over SFTP to the Win32-OpenSSH-Server, the folder doesn't contain the "." and ".." folder.
Expected output
Connected to xxx.
sftp> ls -la
drwx****** 1 - - 8192 Sep 29 21:26 .
drwx****** 1 - - 8192 Sep 29 21:26 ..
drwx****** 1 - - 8192 Sep 29 21:26 Miscellaneous
drwx****** 1 - - 8192 Sep 30 22:26 Working
sftp>
Actual output
Connected to xxx.
sftp> ls -la
drwx****** 1 - - 8192 Sep 29 21:26 Miscellaneous
drwx****** 1 - - 8192 Sep 30 22:26 Working
sftp>
Example if connected to OpenSSH-Server on a debian 10 system:
Connected to xxx.
sftp> ls -la
drwxr-xr-x 5 ncadmin ncadmin 4096 Oct 1 20:42 .
drwxr-xr-x 3 root root 4096 Sep 30 19:44 ..
-rw------- 1 ncadmin ncadmin 1057 Oct 1 21:00 .bash_history
-rw-r--r-- 1 ncadmin ncadmin 220 Sep 30 19:44 .bash_logout
-rw-r--r-- 1 ncadmin ncadmin 3526 Sep 30 19:44 .bashrc
drwx------ 3 ncadmin ncadmin 4096 Sep 30 19:55 .gnupg
drwxr-xr-x 3 ncadmin ncadmin 4096 Sep 30 19:58 .local
-rw-r--r-- 1 ncadmin ncadmin 807 Sep 30 19:44 .profile
drwx------ 2 ncadmin ncadmin 4096 Oct 1 20:42 .ssh
sftp>
This behaviour leads to a problem in Nextcloud with external storages where deleting empty folders is not possible. I debugged it so far and found out, that the following code in the library "phpseclib" shows the problem:
$entries = $this->readlist($path, true);
// normally $entries would have at least . and .. but it might not if the directories
// permissions didn't allow reading
if (empty($entries)) {
return false;
}
unset($entries['.'], $entries['..']);
I think the problem lies in the Win32-OpenSSH-Server and not in Nextcloud or phpseclib.