/
main.go
151 lines (138 loc) · 2.86 KB
/
main.go
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package main
import (
"bytes"
"encoding/xml"
"flag"
"fmt"
"go/format"
"io"
"log"
"os"
"os/exec"
"github.com/go-ole/go-ole"
"github.com/go-ole/go-ole/oleutil"
)
type Property struct {
Name string `xml:"NAME,attr"`
Type string `xml:"TYPE,attr"`
}
type class struct {
Name string `xml:"NAME,attr"`
Property []Property `xml:"PROPERTY"`
}
type result struct {
Class class `xml:"RESULTS>CIM>CLASS"`
}
func typeName(s string) string {
switch s {
case "boolean":
return "bool"
case "char16":
return "uint16"
case "datetime":
return "time.Time"
case "object":
return "interface{}"
case "real32":
return "float32"
case "real64":
return "float64"
case "reference":
return "interface{}"
case "sint16":
return "int16"
case "sint32":
return "int32"
case "sint8":
return "int8"
case "string":
return "string"
case "uint8":
return "uint8"
case "uint16":
return "uint16"
case "uint32":
return "uint32"
case "uint64":
return "uint16"
}
return s
}
func main() {
var pkg, out string
var list, num bool
flag.StringVar(&pkg, "p", "main", "package")
flag.StringVar(&out, "o", "", "output filename")
flag.BoolVar(&list, "l", false, "list all classes")
flag.BoolVar(&num, "n", false, "output number fields")
flag.Parse()
if list {
ole.CoInitialize(0)
enumClasses(func(s string) {
fmt.Println(s)
})
return
}
var buf bytes.Buffer
fmt.Fprintf(&buf, "package %s\n", pkg)
for _, arg := range flag.Args() {
cmd := exec.Command("wmic", "class", arg, "get", "/format:RAWXML")
b, err := cmd.CombinedOutput()
if err != nil {
log.Fatal(err)
}
var r result
err = xml.Unmarshal(b, &r)
if err != nil {
log.Fatal(err)
}
fmt.Fprintf(&buf, "// %s is struct for WMI\n", r.Class.Name)
fmt.Fprintf(&buf, "type %s struct {\n", r.Class.Name)
for _, p := range r.Class.Property {
if num {
switch p.Type {
case "datetime", "object", "reference", "string":
continue
}
}
fmt.Fprintf(&buf, "\t%s\t%s\n", p.Name, typeName(p.Type))
}
fmt.Fprintln(&buf, "}\n")
}
b, err := format.Source(buf.Bytes())
if err != nil {
log.Fatal(err)
}
var w io.Writer = os.Stdout
if out != "" {
f, err := os.Create(out)
if err != nil {
log.Fatal(err)
}
defer f.Close()
w = f
}
w.Write(b)
}
func enumClasses(f func(string)) {
unk, err := ole.GetObject(`winmgmts:root\cimv2`, nil, nil)
if err != nil {
return
}
defer unk.Release()
disp, err := unk.QueryInterface(ole.IID_IDispatch)
if err != nil {
return
}
defer unk.Release()
classes := oleutil.MustCallMethod(disp, "ExecQuery", "Select * From meta_class ").ToIDispatch()
defer classes.Release()
oleutil.ForEach(classes, func(v *ole.VARIANT) error {
clazz := v.ToIDispatch()
path := oleutil.MustGetProperty(clazz, "Path_").ToIDispatch()
defer path.Release()
f(oleutil.MustGetProperty(path, "Class").ToString())
v.Clear()
return nil
})
}