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/* SPDX-License-Identifier: MIT
*
* Copyright (C) 2019 WireGuard LLC. All Rights Reserved.
*/
package ui
import (
"fmt"
"sort"
"strings"
"github.com/lxn/walk"
"golang.zx2c4.com/wireguard/windows/service"
)
// Status + active CIDRs + deactivate + separator
const trayTunnelActionsOffset = 4
type Tray struct {
*walk.NotifyIcon
// Current known tunnels by name
tunnels map[string]*walk.Action
mtw *ManageTunnelsWindow
icon *walk.Icon
}
func NewTray(mtw *ManageTunnelsWindow, icon *walk.Icon) (*Tray, error) {
var err error
tray := &Tray{
mtw: mtw,
icon: icon,
tunnels: make(map[string]*walk.Action),
}
tray.NotifyIcon, err = walk.NewNotifyIcon(mtw.MainWindow)
if err != nil {
return nil, err
}
return tray, tray.setup()
}
func (tray *Tray) setup() error {
tray.SetToolTip("WireGuard: Deactivated")
tray.SetVisible(true)
tray.SetIcon(tray.icon)
tray.MouseDown().Attach(func(x, y int, button walk.MouseButton) {
if button == walk.LeftButton {
tray.mtw.Show()
}
})
// configure initial menu items
for _, item := range [...]struct {
label string
handler walk.EventHandler
enabled bool
hidden bool
separator bool
}{
{label: "Status: Unknown"},
{label: "Networks: None", hidden: true},
{label: "Deactivate", handler: tray.onDeactivateTunnel, enabled: true, hidden: true},
{separator: true},
{separator: true},
{label: "&Manage tunnels...", handler: tray.mtw.Show, enabled: true},
{label: "&Import tunnel(s) from file...", handler: tray.mtw.onImport, enabled: true},
{separator: true},
{label: "&About WireGuard", handler: func() { onAbout(tray.mtw) }, enabled: true},
{label: "&Quit", handler: onQuit, enabled: true},
} {
var action *walk.Action
if item.separator {
action = walk.NewSeparatorAction()
} else {
action = walk.NewAction()
action.SetText(item.label)
action.SetEnabled(item.enabled)
action.SetVisible(!item.hidden)
if item.handler != nil {
action.Triggered().Attach(item.handler)
}
}
tray.ContextMenu().Actions().Add(action)
}
tunnels, err := service.IPCClientTunnels()
if err != nil {
return err
}
for _, tunnel := range tunnels {
tray.addTunnelAction(tunnel.Name)
}
tray.mtw.TunnelAdded().Attach(tray.addTunnelAction)
tray.mtw.TunnelDeleted().Attach(tray.removeTunnelAction)
return nil
}
func (tray *Tray) addTunnelAction(tunnelName string) {
tunnelAction := walk.NewAction()
tunnelAction.SetText(tunnelName)
tunnelAction.SetEnabled(true)
tunnelAction.SetCheckable(true)
tunnelAction.Triggered().Attach(func() {
if activeTunnel := tray.mtw.tunnelTracker.activeTunnel; activeTunnel != nil && activeTunnel.Name == tunnelName {
tray.onDeactivateTunnel()
} else {
tray.onActivateTunnel(tunnelName)
}
})
tray.tunnels[tunnelName] = tunnelAction
// Add the action at the right spot
var names []string
for name, _ := range tray.tunnels {
names = append(names, name)
}
sort.Strings(names)
var (
idx int
name string
)
for idx, name = range names {
if name == tunnelName {
break
}
}
tray.ContextMenu().Actions().Insert(trayTunnelActionsOffset+idx, tunnelAction)
}
func (tray *Tray) removeTunnelAction(tunnelName string) {
tray.ContextMenu().Actions().Remove(tray.tunnels[tunnelName])
delete(tray.tunnels, tunnelName)
}
func (tray *Tray) SetTunnelState(tunnel *service.Tunnel, state service.TunnelState) {
tray.SetTunnelStateWithNotification(tunnel, state, true)
}
func (tray *Tray) SetTunnelStateWithNotification(tunnel *service.Tunnel, state service.TunnelState, showNotifications bool) {
tunnelAction := tray.tunnels[tunnel.Name]
actions := tray.ContextMenu().Actions()
statusAction := actions.At(0)
activeCIDRsAction := actions.At(1)
deactivateAction := actions.At(2)
setTunnelActionsEnabled := func(enabled bool) {
for i := 0; i < len(tray.tunnels); i++ {
action := actions.At(trayTunnelActionsOffset + i)
action.SetEnabled(enabled)
}
}
switch state {
case service.TunnelStarting:
statusAction.SetText("Status: Activating")
setTunnelActionsEnabled(false)
tray.SetToolTip("WireGuard: Activating...")
case service.TunnelStarted:
statusAction.SetText("Status: Active")
setTunnelActionsEnabled(true)
config, err := tunnel.RuntimeConfig()
activeCIDRsAction.SetVisible(err == nil)
deactivateAction.SetVisible(err == nil)
if err == nil {
var sb strings.Builder
for i, addr := range config.Interface.Addresses {
if i > 0 {
sb.WriteString(", ")
}
sb.WriteString(addr.String())
}
activeCIDRsAction.SetText(fmt.Sprintf("Networks: %s", sb.String()))
}
tunnelAction.SetEnabled(true)
tunnelAction.SetChecked(true)
tray.SetToolTip("WireGuard: Activated")
if showNotifications {
tray.ShowInfo("WireGuard Activated", fmt.Sprintf("The %s tunnel has been activated.", tunnel.Name))
}
case service.TunnelStopping:
statusAction.SetText("Status: Deactivating")
setTunnelActionsEnabled(false)
tray.SetToolTip("WireGuard: Deactivating...")
case service.TunnelStopped:
statusAction.SetText("Status: Inactive")
activeCIDRsAction.SetVisible(false)
deactivateAction.SetVisible(false)
setTunnelActionsEnabled(true)
tunnelAction.SetChecked(false)
tray.SetToolTip("WireGuard: Deactivated")
if showNotifications {
tray.ShowInfo("WireGuard Deactivated", fmt.Sprintf("The %s tunnel has been deactivated.", tunnel.Name))
}
}
}
func (tray *Tray) onActivateTunnel(tunnelName string) {
if err := tray.mtw.TunnelTracker().ActivateTunnel(&service.Tunnel{tunnelName}); err != nil {
walk.MsgBox(tray.mtw, "Failed to activate tunnel", err.Error(), walk.MsgBoxIconError)
}
}
func (tray *Tray) onDeactivateTunnel() {
if err := tray.mtw.TunnelTracker().DeactivateTunnel(); err != nil {
walk.MsgBox(tray.mtw, "Failed to deactivate tunnel", err.Error(), walk.MsgBoxIconError)
}
}
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