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package main
import (
"fmt"
"net"
"regexp"
"github.com/lxn/walk"
"github.com/lxn/walk/declarative"
"github.com/mdlayher/wol"
)
// WakeOnLAN struct type for wake on lan
type WakeOnLAN struct {
SleepHost, SleepPass, SleepMac string
SleepPort int
}
func runWakeOnLanDg(owner walk.Form, dfgAddr, mactgadd string) (int, error) {
const regexSingle = "^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$"
var wakeClientguiwindow struct {
dlgWakeOnLan *walk.Dialog
dbindersshx *walk.DataBinder
acceptPB, cancelPB *walk.PushButton
macLine, addrLine *walk.LineEdit
}
wakestatset := &WakeOnLAN{
SleepHost: dfgAddr,
SleepMac: mactgadd,
SleepPort: 7,
}
return declarative.Dialog{
AssignTo: &wakeClientguiwindow.dlgWakeOnLan,
FixedSize: true,
Title: "Wake On LAN Client",
DefaultButton: &wakeClientguiwindow.acceptPB,
CancelButton: &wakeClientguiwindow.cancelPB,
DataBinder: declarative.DataBinder{
AssignTo: &wakeClientguiwindow.dbindersshx,
Name: "wakeClient",
DataSource: wakestatset,
ErrorPresenter: declarative.ToolTipErrorPresenter{},
},
MinSize: declarative.Size{Width: 320, Height: 300},
Layout: declarative.VBox{},
Children: []declarative.Widget{
declarative.GroupBox{
Title: "Wake On Lan Options",
Layout: declarative.HBox{},
Children: []declarative.Widget{
declarative.Composite{
Layout: declarative.Grid{Columns: 1},
Children: []declarative.Widget{
declarative.GroupBox{
Title: "Host Address To Wake",
Layout: declarative.Grid{Columns: 3},
Children: []declarative.Widget{
declarative.LineEdit{
AssignTo: &wakeClientguiwindow.addrLine,
ToolTipText: "format: IP Address",
CueBanner: "IPv4 Address...",
Text: declarative.Bind("SleepHost"),
},
declarative.NumberEdit{
ToolTipText: "port number",
MaxSize: declarative.Size{Width: 40},
MinSize: declarative.Size{Width: 40},
Value: declarative.Bind("SleepPort"),
MinValue: 1,
MaxValue: 65535,
},
},
},
declarative.GroupBox{
Title: "Host MAC Address",
Layout: declarative.Grid{Columns: 1},
Children: []declarative.Widget{
declarative.LineEdit{
AssignTo: &wakeClientguiwindow.macLine,
CueBanner: "Mac Address...",
Text: declarative.Bind("SleepMac"),
},
},
},
declarative.GroupBox{
Title: "Optional Wake Up Password",
Layout: declarative.VBox{},
Children: []declarative.Widget{
declarative.LineEdit{
CueBanner: "Optional Password...",
PasswordMode: true,
Text: declarative.Bind("SleepPass"),
},
},
},
},
},
},
},
declarative.Composite{
Layout: declarative.HBox{},
Children: []declarative.Widget{
declarative.HSpacer{},
declarative.PushButton{
AssignTo: &wakeClientguiwindow.acceptPB,
Text: "Wake Up",
OnClicked: func() {
if err := wakeClientguiwindow.dbindersshx.Submit(); err != nil {
return
}
if wakestatset.SleepHost == "" {
wakeClientguiwindow.addrLine.Focused()
return
}
if wakestatset.SleepMac == "" {
wakeClientguiwindow.macLine.Focused()
return
}
if match, _ := regexp.MatchString(regexSingle, wakestatset.SleepHost); !match {
walk.MsgBox(wakeClientguiwindow.dlgWakeOnLan, "Host syntax error", "Invalid IPv4 address, Example: 192.168.1.1", walk.MsgBoxIconError)
return
}
digMacAddr, err := net.ParseMAC(wakestatset.SleepMac)
if err != nil {
walk.MsgBox(wakeClientguiwindow.dlgWakeOnLan, "Mac syntax error", fmt.Sprint(err), walk.MsgBoxIconError)
return
}
if err := wakeMachineUp(fmt.Sprintf("%v:%v", wakestatset.SleepHost, wakestatset.SleepPort), digMacAddr, []byte(wakestatset.SleepPass)); err != nil {
walk.MsgBox(wakeClientguiwindow.dlgWakeOnLan, "Wake on error", fmt.Sprint(err), walk.MsgBoxIconError)
return
}
walk.MsgBox(wakeClientguiwindow.dlgWakeOnLan, "Wake on lan", fmt.Sprintf("sent UDP Wake-on-LAN magic packet using \n%s to %s", wakestatset.SleepHost, wakestatset.SleepMac), walk.MsgBoxIconInformation)
},
},
declarative.PushButton{
AssignTo: &wakeClientguiwindow.cancelPB,
Text: "Cancel",
OnClicked: func() { wakeClientguiwindow.dlgWakeOnLan.Cancel() },
},
},
},
},
}.Run(owner)
}
func wakeMachineUp(ipaddr string, macaddr net.HardwareAddr, password []byte) error {
machine, err := wol.NewClient()
if err != nil {
return err
}
defer machine.Close()
return machine.WakePassword(ipaddr, macaddr, password)
}
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