mirror of
https://github.com/netbirdio/netbird.git
synced 2024-11-22 16:13:31 +01:00
466 lines
11 KiB
Go
466 lines
11 KiB
Go
package main
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import (
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"context"
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"flag"
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"fmt"
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"github.com/cenkalti/backoff/v4"
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"io/ioutil"
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"os"
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"os/exec"
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"path"
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"runtime"
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"strconv"
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"strings"
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"syscall"
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"time"
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_ "embed"
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"github.com/getlantern/systray"
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"github.com/netbirdio/netbird/client/internal"
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"github.com/netbirdio/netbird/client/proto"
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log "github.com/sirupsen/logrus"
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"github.com/skratchdot/open-golang/open"
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"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
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"google.golang.org/grpc"
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"google.golang.org/grpc/credentials/insecure"
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"fyne.io/fyne/v2"
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"fyne.io/fyne/v2/app"
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"fyne.io/fyne/v2/dialog"
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"fyne.io/fyne/v2/widget"
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)
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const (
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defaultFailTimeout = 3 * time.Second
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failFastTimeout = time.Second
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)
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func main() {
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var daemonAddr string
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defaultDaemonAddr := "unix:///var/run/wiretrustee.sock"
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if runtime.GOOS == "windows" {
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defaultDaemonAddr = "tcp://127.0.0.1:41731"
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}
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flag.StringVar(
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&daemonAddr, "daemon-addr",
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defaultDaemonAddr,
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"Daemon service address to serve CLI requests [unix|tcp]://[path|host:port]")
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var showSettings bool
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flag.BoolVar(&showSettings, "settings", false, "run settings windows")
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flag.Parse()
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a := app.New()
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client := newServiceClient(daemonAddr, a, showSettings)
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if showSettings {
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a.Run()
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} else {
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if err := checkPIDFile(); err != nil {
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fmt.Println(err)
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return
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}
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systray.Run(client.onTrayReady, client.onTrayExit)
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}
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}
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//go:embed connected.ico
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var iconConnectedICO []byte
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//go:embed connected.png
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var iconConnectedPNG []byte
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//go:embed disconnected.ico
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var iconDisconnectedICO []byte
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//go:embed disconnected.png
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var iconDisconnectedPNG []byte
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type serviceClient struct {
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ctx context.Context
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addr string
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conn proto.DaemonServiceClient
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icConnected []byte
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icDisconnected []byte
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// systray menu itmes
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mStatus *systray.MenuItem
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mUp *systray.MenuItem
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mDown *systray.MenuItem
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mAdminPanel *systray.MenuItem
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mSettings *systray.MenuItem
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mQuit *systray.MenuItem
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// application with main windows.
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app fyne.App
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wSettings fyne.Window
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showSettings bool
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// input elements for settings form
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iMngURL *widget.Entry
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iAdminURL *widget.Entry
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iConfigFile *widget.Entry
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iLogFile *widget.Entry
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iPreSharedKey *widget.Entry
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// observable settings over correspondign iMngURL and iPreSharedKey values.
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managementURL string
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preSharedKey string
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adminURL string
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}
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// newServiceClient instance constructor
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//
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// This constructor olso build UI elements for settings window.
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func newServiceClient(addr string, a fyne.App, showSettings bool) *serviceClient {
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s := &serviceClient{
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ctx: context.Background(),
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addr: addr,
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app: a,
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showSettings: showSettings,
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}
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if runtime.GOOS == "windows" {
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s.icConnected = iconConnectedICO
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s.icDisconnected = iconDisconnectedICO
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} else {
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s.icConnected = iconConnectedPNG
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s.icDisconnected = iconDisconnectedPNG
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}
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if showSettings {
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s.showUIElements()
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return s
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}
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return s
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}
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func (s *serviceClient) showUIElements() {
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// add settings window UI elements.
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s.wSettings = s.app.NewWindow("Settings")
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s.iMngURL = widget.NewEntry()
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s.iAdminURL = widget.NewEntry()
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s.iConfigFile = widget.NewEntry()
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s.iConfigFile.Disable()
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s.iLogFile = widget.NewEntry()
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s.iLogFile.Disable()
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s.iPreSharedKey = widget.NewPasswordEntry()
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s.wSettings.SetContent(s.getSettingsForm())
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s.wSettings.Resize(fyne.NewSize(600, 100))
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s.getSrvConfig()
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s.wSettings.Show()
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}
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// getSettingsForm to embed it into settings window.
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func (s *serviceClient) getSettingsForm() *widget.Form {
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return &widget.Form{
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Items: []*widget.FormItem{
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{Text: "Management URL", Widget: s.iMngURL},
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{Text: "Admin URL", Widget: s.iAdminURL},
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{Text: "Pre-shared Key", Widget: s.iPreSharedKey},
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{Text: "Config File", Widget: s.iConfigFile},
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{Text: "Log File", Widget: s.iLogFile},
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},
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SubmitText: "Save",
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OnSubmit: func() {
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if s.iPreSharedKey.Text != "" && s.iPreSharedKey.Text != "**********" {
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// validate preSharedKey if it added
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if _, err := wgtypes.ParseKey(s.iPreSharedKey.Text); err != nil {
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dialog.ShowError(fmt.Errorf("Invalid Pre-shared Key Value"), s.wSettings)
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return
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}
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}
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defer s.wSettings.Close()
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// if management URL or Pre-shared key changed, we try to re-login with new settings.
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if s.managementURL != s.iMngURL.Text || s.preSharedKey != s.iPreSharedKey.Text ||
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s.adminURL != s.iAdminURL.Text {
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s.managementURL = s.iMngURL.Text
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s.preSharedKey = s.iPreSharedKey.Text
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s.adminURL = s.iAdminURL.Text
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client, err := s.getSrvClient(failFastTimeout)
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if err != nil {
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log.Errorf("get daemon client: %v", err)
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return
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}
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_, err = client.Login(s.ctx, &proto.LoginRequest{
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ManagementUrl: s.iMngURL.Text,
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AdminURL: s.iAdminURL.Text,
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PreSharedKey: s.iPreSharedKey.Text,
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})
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if err != nil {
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log.Errorf("login to management URL: %v", err)
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return
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}
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_, err = client.Up(s.ctx, &proto.UpRequest{})
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if err != nil {
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log.Errorf("login to management URL: %v", err)
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return
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}
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}
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s.wSettings.Close()
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},
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OnCancel: func() {
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s.wSettings.Close()
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},
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}
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}
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func (s *serviceClient) menuUpClick() error {
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conn, err := s.getSrvClient(defaultFailTimeout)
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if err != nil {
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log.Errorf("get client: %v", err)
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return err
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}
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status, err := conn.Status(s.ctx, &proto.StatusRequest{})
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if err != nil {
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log.Errorf("get service status: %v", err)
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return err
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}
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if status.Status != string(internal.StatusIdle) {
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log.Warnf("already connected")
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return nil
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}
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if _, err := s.conn.Up(s.ctx, &proto.UpRequest{}); err != nil {
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log.Errorf("up service: %v", err)
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return err
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}
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return nil
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}
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func (s *serviceClient) menuDownClick() error {
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conn, err := s.getSrvClient(defaultFailTimeout)
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if err != nil {
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log.Errorf("get client: %v", err)
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return err
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}
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status, err := conn.Status(s.ctx, &proto.StatusRequest{})
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if err != nil {
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log.Errorf("get service status: %v", err)
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return err
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}
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if status.Status != string(internal.StatusConnected) {
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log.Warnf("already down")
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return nil
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}
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if _, err := s.conn.Down(s.ctx, &proto.DownRequest{}); err != nil {
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log.Errorf("down service: %v", err)
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return err
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}
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return nil
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}
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func (s *serviceClient) updateStatus() error {
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conn, err := s.getSrvClient(defaultFailTimeout)
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if err != nil {
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return err
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}
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err = backoff.Retry(func() error {
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status, err := conn.Status(s.ctx, &proto.StatusRequest{})
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if err != nil {
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log.Errorf("get service status: %v", err)
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return err
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}
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if status.Status == string(internal.StatusConnected) {
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systray.SetIcon(s.icConnected)
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s.mStatus.SetTitle("Connected")
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s.mUp.Disable()
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s.mDown.Enable()
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} else {
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systray.SetIcon(s.icDisconnected)
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s.mStatus.SetTitle("Disconnected")
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s.mDown.Disable()
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s.mUp.Enable()
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}
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return nil
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}, &backoff.ExponentialBackOff{
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InitialInterval: time.Second,
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RandomizationFactor: backoff.DefaultRandomizationFactor,
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Multiplier: backoff.DefaultMultiplier,
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MaxInterval: 300 * time.Millisecond,
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MaxElapsedTime: 2 * time.Second,
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Stop: backoff.Stop,
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Clock: backoff.SystemClock,
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})
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if err != nil {
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return err
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}
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return nil
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}
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func (s *serviceClient) onTrayReady() {
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systray.SetIcon(s.icDisconnected)
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// setup systray menu items
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s.mStatus = systray.AddMenuItem("Disconnected", "Disconnected")
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s.mStatus.Disable()
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systray.AddSeparator()
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s.mUp = systray.AddMenuItem("Connect", "Connect")
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s.mDown = systray.AddMenuItem("Disconnect", "Disconnect")
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s.mDown.Disable()
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s.mAdminPanel = systray.AddMenuItem("Admin Panel", "Wiretrustee Admin Panel")
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systray.AddSeparator()
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s.mSettings = systray.AddMenuItem("Settings", "Settings of the application")
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systray.AddSeparator()
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s.mQuit = systray.AddMenuItem("Quit", "Quit the client app")
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go func() {
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s.getSrvConfig()
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for {
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err := s.updateStatus()
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if err != nil {
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log.Errorf("error while updating status: %v", err)
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}
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time.Sleep(2 * time.Second)
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}
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}()
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go func() {
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var err error
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for {
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select {
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case <-s.mAdminPanel.ClickedCh:
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err = open.Run(s.adminURL)
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case <-s.mUp.ClickedCh:
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s.mUp.Disable()
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if err = s.menuUpClick(); err != nil {
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s.mUp.Enable()
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}
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case <-s.mDown.ClickedCh:
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s.mDown.Disable()
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if err = s.menuDownClick(); err != nil {
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s.mDown.Enable()
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}
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case <-s.mSettings.ClickedCh:
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s.mSettings.Disable()
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go func() {
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defer s.mSettings.Enable()
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proc, err := os.Executable()
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if err != nil {
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log.Errorf("show settings: %v", err)
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return
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}
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cmd := exec.Command(proc, "--settings=true")
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out, err := cmd.CombinedOutput()
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if exitErr, ok := err.(*exec.ExitError); ok && exitErr.ExitCode() == 1 {
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log.Errorf("start settings UI: %v, %s", err, string(out))
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return
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}
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if len(out) != 0 {
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log.Info("settings change:", string(out))
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}
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// update config in systray when settings windows closed
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s.getSrvConfig()
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}()
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case <-s.mQuit.ClickedCh:
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systray.Quit()
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return
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}
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if err != nil {
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log.Errorf("process connection: %v", err)
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}
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}
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}()
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}
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func (s *serviceClient) onTrayExit() {}
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// getSrvClient connection to the service.
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func (s *serviceClient) getSrvClient(timeout time.Duration) (proto.DaemonServiceClient, error) {
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if s.conn != nil {
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return s.conn, nil
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}
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ctx, cancel := context.WithTimeout(context.Background(), timeout)
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defer cancel()
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conn, err := grpc.DialContext(
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ctx,
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strings.TrimPrefix(s.addr, "tcp://"),
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grpc.WithTransportCredentials(insecure.NewCredentials()),
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grpc.WithBlock(),
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)
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if err != nil {
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return nil, fmt.Errorf("dial service: %w", err)
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}
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s.conn = proto.NewDaemonServiceClient(conn)
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return s.conn, nil
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}
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// getSrvConfig from the service to show it in the settings window.
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func (s *serviceClient) getSrvConfig() {
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s.managementURL = "https://api.wiretrustee.com:33073"
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s.adminURL = "https://app.netbird.io"
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conn, err := s.getSrvClient(failFastTimeout)
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if err != nil {
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log.Errorf("get client: %v", err)
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return
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}
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cfg, err := conn.GetConfig(s.ctx, &proto.GetConfigRequest{})
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if err != nil {
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log.Errorf("get config settings from server: %v", err)
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return
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}
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if cfg.ManagementUrl != "" {
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s.managementURL = cfg.ManagementUrl
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}
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if cfg.AdminURL != "" {
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s.adminURL = cfg.AdminURL
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}
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s.preSharedKey = cfg.PreSharedKey
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if s.showSettings {
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s.iMngURL.SetText(s.managementURL)
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s.iAdminURL.SetText(s.adminURL)
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s.iConfigFile.SetText(cfg.ConfigFile)
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s.iLogFile.SetText(cfg.LogFile)
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s.iPreSharedKey.SetText(cfg.PreSharedKey)
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}
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}
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// checkPIDFile exists and return error, or write new.
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func checkPIDFile() error {
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pidFile := path.Join(os.TempDir(), "wiretrustee-ui.pid")
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if piddata, err := ioutil.ReadFile(pidFile); err == nil {
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if pid, err := strconv.Atoi(string(piddata)); err == nil {
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if process, err := os.FindProcess(pid); err == nil {
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if err := process.Signal(syscall.Signal(0)); err == nil {
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return fmt.Errorf("process already exists: %d", pid)
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}
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}
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}
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}
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return ioutil.WriteFile(pidFile, []byte(fmt.Sprintf("%d", os.Getpid())), 0o664)
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}
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