package main

import (
    "fmt"
    "io/ioutil"
    "os"

    "github.com/hectane/go-acl/api"
    "golang.org/x/sys/windows"
)

type FileInfo struct {
    path     string
    ownerSid string
    size     int64
}

func main() {
    i, err := DirSid(".")
    if err != nil {
        panic(err)
    }
    fmt.Printf("%#v", i)
}

func DirSid(path string) ([]FileInfo, error) {
    var fileInfo []FileInfo

    fileStat, err := os.Stat(path)
    if err != nil {
        return nil, err
    }

    if fileStat.IsDir() {
        files, err := ioutil.ReadDir(path)
        if err != nil {
            return nil, err
        }
        for _, f := range files {
            i, err := DirSid(path + "\\" + f.Name())
            if err != nil {
                return nil, err
            }
            fileInfo = append(fileInfo, i...)
        }
    } else {
        fileInfo = append(fileInfo, FileInfo{path, GetFileSid(path), fileStat.Size()})
    }
    return fileInfo, nil
}

func GetFileSid(path string) string {
    var owner *windows.SID

    err := api.GetNamedSecurityInfo(
        path,
        api.SE_FILE_OBJECT,
        api.OWNER_SECURITY_INFORMATION,
        &owner,
        nil,
        nil,
        nil,
        nil,
    )
    if err != nil {
        fmt.Println(err)
    }

    return owner.String()
}