[dolphin] [Bug 441567] New: Dolphin allows file rename and then silently fails even though the user does not have write permission

[bugzilla_noreply at kde.org]

https://bugs.kde.org/show_bug.cgi?id=441567

            Bug ID: 441567
           Summary: Dolphin allows file rename and then silently fails
                    even though the user does not have write permission
           Product: dolphin
           Version: 21.08.0
          Platform: Archlinux Packages
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: dolphin-bugs-null at kde.org
          Reporter: 2wxsy58236r3 at opayq.com
                CC: kfm-devel at kde.org
  Target Milestone: ---

SUMMARY

Even though the user does not have write permission to a file, the rename
option is still available and a new name can be entered. Then Dolphin silently
fails to rename the file due to insufficient permission.

STEPS TO REPRODUCE

1. `sudo touch test.txt` to create a file owned by root with mode 644.
2. As a non-root user, rename the file via right-click menu or F2.

OBSERVED RESULT

File rename dialog pops up and the user can submit a new name.

The file will not be renamed because the user does not have write permission.
However, Dolphin will not give any error message.

EXPECTED RESULT

Dolphin should disable the rename option if the user does not have enough
permission, or at least output an error message that the rename operation
failed.

SOFTWARE/OS VERSIONS

KDE Plasma Version: 5.22.4
KDE Frameworks Version: 5.85.0
Qt Version: 5.15.2

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