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lib/fs: Try to remove read only Windows files (fixes #3744) (#8650)

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This happens when folders contain a custom icon.

Co-authored-by: Alexandre Alves <alexandrealvesdb.contact@gmail.com>
This commit is contained in:
Jakob Borg 2022-11-07 21:33:17 +01:00 committed by GitHub
parent 5e384c9185
commit a29605750d
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 46 additions and 8 deletions
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8
lib/fs/basicfs.go
View File

@ -178,14 +178,6 @@ func (f *BasicFilesystem) Lstat(name string) (FileInfo, error) {
return basicFileInfo{fi}, err
}
func (f *BasicFilesystem) Remove(name string) error {
name, err := f.rooted(name)
if err != nil {
return err
}
return os.Remove(name)
}
func (f *BasicFilesystem) RemoveAll(name string) error {
name, err := f.rooted(name)
if err != nil {

8
lib/fs/basicfs_unix.go
View File

@ -74,6 +74,14 @@ func (f *BasicFilesystem) Lchown(name, uid, gid string) error {
return os.Lchown(name, nuid, ngid)
}
func (f *BasicFilesystem) Remove(name string) error {
name, err := f.rooted(name)
if err != nil {
return err
}
return os.Remove(name)
}
// unrootedChecked returns the path relative to the folder root (same as
// unrooted) or an error if the given path is not a subpath and handles the
// special case when the given path is the folder root without a trailing

15
lib/fs/basicfs_windows.go
View File

@ -190,6 +190,21 @@ func (f *BasicFilesystem) Lchown(name, uid, gid string) error {
return windows.SetSecurityInfo(hdl, windows.SE_FILE_OBJECT, si, (*windows.SID)(ownerSID), (*windows.SID)(groupSID), nil, nil)
}
func (f *BasicFilesystem) Remove(name string) error {
name, err := f.rooted(name)
if err != nil {
return err
}
err = os.Remove(name)
if os.IsPermission(err) {
// Try to remove the read-only attribute and try again
if os.Chmod(name, 0600) == nil {
err = os.Remove(name)
}
}
return err
}
// unrootedChecked returns the path relative to the folder root (same as
// unrooted) or an error if the given path is not a subpath and handles the
// special case when the given path is the folder root without a trailing

23
lib/fs/basicfs_windows_test.go
View File

@ -13,6 +13,7 @@ import (
"os"
"path/filepath"
"strings"
"syscall"
"testing"
)
@ -192,3 +193,25 @@ func TestGetFinalPath(t *testing.T) {
}
}
}
func TestRemoveWindowsDirIcon(t *testing.T) {
//Try to delete a folder with a custom icon with os.Remove (simulated by the readonly file attribute)
fs, dir := setup(t)
relativePath := "folder_with_icon"
path := filepath.Join(dir, relativePath)
if err := os.Mkdir(path, os.ModeDir); err != nil {
t.Fatal(err)
}
ptr, err := syscall.UTF16PtrFromString(path)
if err != nil {
t.Fatal(err)
}
if err := syscall.SetFileAttributes(ptr, uint32(syscall.FILE_ATTRIBUTE_DIRECTORY+syscall.FILE_ATTRIBUTE_READONLY)); err != nil {
t.Fatal(err)
}
if err := fs.Remove(relativePath); err != nil {
t.Fatal(err)
}
}