Problem: Home-directory in Nextcloud 19.04 / 20.02 not writeable

[DirkS]

Problem

Home-directories are not writeable in Nextcloud after update to version 19.04.

Environment

Folderredirection is in use and points to the homeshare of the users.

Solution

Locate /apps/files_external/3rdparty/icewind/smb/src/Native/NativeFileInfo.php

root@dc0:~ # updatedb
root@dc0:~ # locate NativeFileInfo.php
root@dc0:~ # vi /var/lib/docker/overlay2/2b15192d1a1c94b92a9cfdb2aa10e1ad3681203ed73e3019ff1ac6ccddbbe53a/merged/var/www/html/apps/files_external/3rdparty/icewind/smb/src/Native/NativeFileInfo.php

Change the file from:

public function isReadOnly() {
                $mode = $this->getMode();
                if ($mode > 0x1000) {
                        return !(bool)($mode & 0x80); // 0x80: owner write permissions
                } else {
                        return (bool)($mode & IFileInfo::MODE_READONLY);
                }
        

}

to

public function isReadOnly() {
                 $mode = $this->getMode();
                 if ($this->isDirectory()) {
                        return false;
                 } elseif ($mode > 0x1000) {
                         return !(bool)($mode & 0x80); // 0x80: owner write permissions
                 } else {
                         return (bool)($mode & IFileInfo::MODE_READONLY);
                 }
         }

Root Cause

Microsoft specifies (read Cause) the Readonly Attribute of a directory different to a readonly Attribute of a file. Nextcloud do not distinguish between file or directory.

See nextcloud discussion about that topic with the original fix included.