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Get windows version from registry (#502)

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Avoid problems with localization by retrieving
version information from registry

Return a default 0.0.0.0 if operation fails
This commit is contained in:
Maycon Santos 2022-10-12 12:25:33 +02:00 committed by GitHub
parent 6e9a162877
commit c49fb0c40c
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 38 additions and 23 deletions
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61
client/system/info_windows.go
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@ -1,36 +1,17 @@
package system
import (
"bytes"
"context"
"fmt"
log "github.com/sirupsen/logrus"
"golang.org/x/sys/windows/registry"
"os"
"os/exec"
"runtime"
"strings"
)
// GetInfo retrieves and parses the system information
func GetInfo(ctx context.Context) *Info {
cmd := exec.Command("cmd", "ver")
cmd.Stdin = strings.NewReader("some")
var out bytes.Buffer
var stderr bytes.Buffer
cmd.Stdout = &out
cmd.Stderr = &stderr
err := cmd.Run()
if err != nil {
panic(err)
}
osStr := strings.Replace(out.String(), "\n", "", -1)
osStr = strings.Replace(osStr, "\r\n", "", -1)
tmp1 := strings.Index(osStr, "[Version")
tmp2 := strings.Index(osStr, "]")
var ver string
if tmp1 == -1 || tmp2 == -1 {
ver = "unknown"
} else {
ver = osStr[tmp1+9 : tmp2]
}
ver := getOSVersion()
gio := &Info{Kernel: "windows", OSVersion: ver, Core: ver, Platform: "unknown", OS: "windows", GoOS: runtime.GOOS, CPUs: runtime.NumCPU()}
gio.Hostname, _ = os.Hostname()
gio.WiretrusteeVersion = NetbirdVersion()
@ -38,3 +19,37 @@ func GetInfo(ctx context.Context) *Info {
return gio
}
func getOSVersion() string {
k, err := registry.OpenKey(registry.LOCAL_MACHINE, `SOFTWARE\Microsoft\Windows NT\CurrentVersion`, registry.QUERY_VALUE)
if err != nil {
log.Error(err)
return "0.0.0.0"
}
defer func() {
deferErr := k.Close()
if deferErr != nil {
log.Error(deferErr)
}
}()
major, _, err := k.GetIntegerValue("CurrentMajorVersionNumber")
if err != nil {
log.Error(err)
}
minor, _, err := k.GetIntegerValue("CurrentMinorVersionNumber")
if err != nil {
log.Error(err)
}
build, _, err := k.GetStringValue("CurrentBuildNumber")
if err != nil {
log.Error(err)
}
// Update Build Revision
ubr, _, err := k.GetIntegerValue("UBR")
if err != nil {
log.Error(err)
}
ver := fmt.Sprintf("%d.%d.%s.%d", major, minor, build, ubr)
return ver
}