473 lines
10 KiB
Go
473 lines
10 KiB
Go
// +build darwin linux
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package main
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import (
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"io/ioutil"
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"os"
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"path"
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"strings"
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"sync"
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"time"
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"gioui.org/ui"
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"gioui.org/ui/app"
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"gioui.org/ui/key"
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"gioui.org/ui/layout"
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"gioui.org/ui/measure"
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"gioui.org/ui/text"
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"github.com/fsnotify/fsnotify"
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"gopkg.in/yaml.v2"
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"git.wow.st/gmp/passgo"
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)
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type conf struct {
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StoreDir string
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ClearDelay int
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}
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func main() {
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var fd *os.File
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confFile := path.Join(confDir, "config.yml")
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if _, err := os.Stat(confFile); os.IsNotExist(err) {
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fd, err = os.Create(confFile)
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if err != nil {
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log(Fatal, "Cannot create configuration file: ", err)
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}
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}
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confbytes, err := ioutil.ReadFile(confFile)
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if err != nil {
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log(Fatal, "Cannot read configuration file: ", err)
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}
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if err = yaml.UnmarshalStrict(confbytes, &Config); err != nil {
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log(Fatal, "Cannot parse configuration file: ", err)
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}
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store.Dir = Config.StoreDir
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log(Info, " StoreDir = ", store.Dir)
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err = passgo.GetStore(&store)
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if err != nil {
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log(Fatal, err)
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}
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if Config.ClearDelay == 0 {
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Config.ClearDelay = 45
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}
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if fd != nil { // we still have an empty conf file open:
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Config.StoreDir = store.Dir
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saveConf(fd)
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}
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reload = make(chan struct{})
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updated = make(chan struct{})
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passch = make(chan []byte)
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go Updater()
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log(Info, "Staring event loop")
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go eventLoop()
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app.Main()
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log(Info, "Event loop returned")
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}
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var (
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Config conf
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l []passgo.Pass
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mux sync.Mutex
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store passgo.Store
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reload chan struct{}
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updated chan struct{}
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passch chan []byte
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)
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func Updater() {
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update := func() {
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ltmp, err := store.List()
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if err != nil {
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log(Info, err)
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}
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mux.Lock()
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l = ltmp
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mux.Unlock()
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updated <- struct{}{}
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}
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update()
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watcher, err := fsnotify.NewWatcher()
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if err != nil {
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log(Fatal, err)
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}
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watcher.Add(store.Dir)
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for {
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select {
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case <-reload:
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update()
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case <-watcher.Events:
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update()
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case e := <-watcher.Errors:
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log(Info, "Watcher error: ", e)
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}
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}
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}
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func saveConf(fds ...*os.File) {
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var fd *os.File
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var err error
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if len(fds) > 0 && fds[0] != nil {
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fd = fds[0]
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} else {
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fd, err = os.Create(path.Join(confDir, "config.yml"))
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if err != nil {
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log(Fatal, "Cannot open config file: ", err)
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}
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}
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defer fd.Close()
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confbytes, err := yaml.Marshal(Config)
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if err != nil {
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log(Fatal, "Cannot save configuration: ", err)
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}
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_, err = fd.Write(confbytes)
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if err != nil {
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log(Fatal, "Cannot write to configuration: ", err)
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}
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}
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func eventLoop() {
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w := app.NewWindow(app.WithWidth(ui.Dp(250)))
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q := w.Queue()
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var c ui.Config
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ops := new(ui.Ops)
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var dims layout.Dimensions
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var cs layout.Constraints
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var margincs layout.Constraints
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var faces measure.Faces
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var c1 layout.FlexChild // flex child for title bar
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face := faces.For(regular, ui.Sp(16))
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margin := layout.UniformInset(ui.Dp(10))
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title := &text.Label{Face: face, Text: "passgo"}
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dotsbtn := &Button{
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Face: face,
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Label: "\xe2\x8b\xae",
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Alignment: text.End,
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Color: black,
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Background: gray,
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}
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titleflex := &layout.Flex{Axis: layout.Horizontal}
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flex := &layout.Flex{Axis: layout.Vertical}
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lst := &layout.List{Axis: layout.Vertical}
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passBtns := make([]*Button, 0)
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pathnames := make([]string, 0)
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copied := &Overlay{Face: face, Text: "copied to clipboard",
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Color: black,
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Background: darkgray,
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Alignment: text.Middle,
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}
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cleared := &Overlay{Face: face, Text: "clipboard cleared",
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Color: black,
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Background: darkgray,
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Alignment: text.Middle,
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}
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overlay := copied
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var overlayStart time.Time
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updateBtns := func() {
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passBtns = passBtns[:0]
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pathnames = pathnames[:0]
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mux.Lock()
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for _, x := range l {
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_, n := path.Split(x.Pathname)
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s := strings.Repeat(" /", x.Level)
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z := ""
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if x.Dir {
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z = "/"
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}
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passBtns = append(passBtns, &Button{
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Face: face,
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Label: strings.Join([]string{s, n, z}, ""),
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Background: gray,
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})
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pathnames = append(pathnames, x.Pathname)
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}
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mux.Unlock()
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}
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updateBtns()
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confBtn := &Button{
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Face: face,
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Label: "configure",
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Alignment: text.Middle,
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Color: black,
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Background: gray,
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}
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storeDirLabel := &text.Label{Face: face, Text: "Store directory"}
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storeDirEd := &text.Editor{Face: face, SingleLine: true}
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storeDirEd.SetText(store.Dir)
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saveBtn := &Button{
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Face: face,
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Label: "save",
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Alignment: text.End,
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Color: black,
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Background: gray,
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}
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backBtn := &Button{
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Face: face,
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Label: "back",
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Alignment: text.End,
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Color: black,
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Background: gray,
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}
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promptLabel := &text.Label{Face: face, Text: "passphrase"}
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promptEd := &text.Editor{Face: face, SingleLine: true, Submit: true}
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okBtn := &Button{
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Face: face,
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Label: "ok",
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Alignment: text.End,
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Color: black,
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Background: gray,
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}
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anim := &time.Ticker{}
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animating := false
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animOn := func() {
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log(Info,"animOn()")
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anim = time.NewTicker(time.Second / 120)
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animating = true
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w.Invalidate()
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}
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animOff := func() {
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log(Info,"animOff()")
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anim.Stop()
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animating = false
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}
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var listPage, confPage, promptPage, page func()
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prompt := func() []byte {
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page = promptPage
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promptEd.SetText("")
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w.Invalidate()
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return <-passch
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}
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listPage = func() {
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cs = flex.Flexible(1.0)
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mux.Lock()
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if lst.Dragging() {
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key.HideInputOp{}.Add(ops)
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}
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var c2 layout.FlexChild
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if len(passBtns) == 0 {
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c2 = flex.End(confBtn.Layout(c, q, ops, cs))
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if confBtn.Clicked() {
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log(Info, "Configure")
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w.Invalidate()
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page = confPage
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}
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} else {
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for lst.Init(c, q, ops, cs, len(passBtns)); lst.More(); lst.Next() {
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i := lst.Index()
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btn := passBtns[i]
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dims = btn.Layout(c, q, ops, lst.Constraints())
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lst.End(dims)
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if btn.Clicked() {
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log(Info, "Clicked ", btn.Label)
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// don't block UI thread on decryption attempt
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go func(name string) {
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p,err := store.Decrypt(name, prompt)
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//p, err := store.Decrypt(name)
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if err == nil {
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passgo.Clip(p)
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overlayStart = time.Now()
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overlay = copied
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overlay.Color = black
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overlay.Background = darkgray
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animOn()
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go func() {
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time.Sleep(time.Second * time.Duration(Config.ClearDelay))
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log(Info, "clearing clipboard")
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passgo.Clip("")
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}()
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} else {
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log(Info, "Can't decrypt ", name)
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log(Info, err)
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}
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}(pathnames[i])
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}
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}
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c2 = flex.End(lst.Layout())
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}
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mux.Unlock()
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if dotsbtn.Clicked() {
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log(Info, "Configure")
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w.Invalidate()
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page = confPage
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}
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flex.Layout(c1, c2)
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x := time.Since(overlayStart).Seconds()
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fade1a, fade1b := 1.5, 1.75
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start2 := float64(Config.ClearDelay)
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fade2a, end := start2 + 1.5, start2 + 1.75
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switch {
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case x > fade1a && x < fade1b ||
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x > fade2a && x < end:
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var fade float64
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switch {
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case x < fade1b:
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fade = (fade1b - x) / (fade1b - fade1a)
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case x > fade2a:
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fade = (end - x) / (end - fade2a)
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}
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overlay.Color.R = uint8(float64(black.R) * fade)
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overlay.Color.G = uint8(float64(black.G) * fade)
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overlay.Color.B = uint8(float64(black.B) * fade)
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overlay.Color.A = uint8(float64(black.A) * fade)
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overlay.Background.R = uint8(float64(darkgray.R) * fade)
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overlay.Background.G = uint8(float64(darkgray.G) * fade)
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overlay.Background.B = uint8(float64(darkgray.B) * fade)
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overlay.Background.A = uint8(float64(darkgray.A) * fade)
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fallthrough
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case x <= fade1b ||
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x > start2 && x < end:
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if x > start2 && overlay == copied {
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overlay = cleared
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overlay.Color = black
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overlay.Background = darkgray
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}
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cs = margincs
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al := layout.Align{Alignment: layout.SE}
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cs = al.Begin(ops, cs)
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cs.Width.Min = cs.Width.Max
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dims = al.End(overlay.Layout(c, ops, cs))
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case animating && x > end:
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animOff()
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}
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}
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confPage = func() {
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cs = flex.Rigid()
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c2 := flex.End(storeDirLabel.Layout(ops, cs))
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cs = flex.Rigid()
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c3 := flex.End(storeDirEd.Layout(c, q, ops, cs))
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cs = flex.Rigid()
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al := &layout.Align{Alignment: layout.E}
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cs = al.Begin(ops, cs)
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btnflx := &layout.Flex{Axis: layout.Horizontal}
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btnflx.Init(ops, cs)
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cs = btnflx.Rigid()
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bc1 := btnflx.End(backBtn.Layout(c, q, ops, cs))
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cs = btnflx.Rigid()
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bc2 := btnflx.End(saveBtn.Layout(c, q, ops, cs))
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dims = btnflx.Layout(bc1, bc2)
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c4 := flex.End(al.End(dims))
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flex.Layout(c1, c2, c3, c4)
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if backBtn.Clicked() {
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log(Info, "Back")
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storeDirEd.SetText(store.Dir)
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w.Invalidate()
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page = listPage
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}
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if saveBtn.Clicked() {
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log(Info, "Save")
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go func() { // do not block UI thread
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store.Dir = storeDirEd.Text()
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passgo.GetStore(&store)
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Config.StoreDir = store.Dir
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saveConf()
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reload <- struct{}{}
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}()
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w.Invalidate()
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page = listPage
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}
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}
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promptPage = func() {
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submit := false
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for e, ok := promptEd.Next(c, q); ok; e, ok = promptEd.Next(c, q) {
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switch e.(type) {
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case text.SubmitEvent:
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log(Info, "Submit")
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submit = true
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}
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}
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cs = flex.Rigid()
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c2 := flex.End(promptLabel.Layout(ops, cs))
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cs = flex.Rigid()
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c3 := flex.End(promptEd.Layout(c, q, ops, cs))
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cs = flex.Rigid()
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al := &layout.Align{Alignment: layout.E}
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cs = al.Begin(ops, cs)
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btnflx := &layout.Flex{Axis: layout.Horizontal}
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btnflx.Init(ops, cs)
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cs = btnflx.Rigid()
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bc1 := btnflx.End(backBtn.Layout(c, q, ops, cs))
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cs = btnflx.Rigid()
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bc2 := btnflx.End(okBtn.Layout(c, q, ops, cs))
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dims = btnflx.Layout(bc1, bc2)
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c4 := flex.End(al.End(dims))
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flex.Layout(c1, c2, c3, c4)
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if submit || okBtn.Clicked() {
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log(Info, "Ok")
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go func() { // do not block UI thread
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passch <-[]byte(promptEd.Text())
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}()
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w.Invalidate()
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page = listPage
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}
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if backBtn.Clicked() {
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log(Info, "Back")
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go func() {
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passch <- nil // cancel prompt
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}()
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w.Invalidate()
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page = listPage
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}
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}
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page = listPage
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for {
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select {
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case <-updated:
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log(Info, "UPDATE")
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updateBtns()
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w.Invalidate()
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case <-anim.C:
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w.Invalidate()
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case e := <-w.Events():
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switch e := e.(type) {
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case app.DestroyEvent:
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return
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case app.UpdateEvent:
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c = &e.Config
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ops.Reset()
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faces.Reset(c)
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cs = layout.RigidConstraints(e.Size)
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cs = margin.Begin(c, ops, cs)
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margincs = cs
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flex.Init(ops, cs)
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cs = flex.Rigid()
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titleflex.Init(ops, cs)
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cs = titleflex.Rigid()
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ct2 := titleflex.End(dotsbtn.Layout(c, q, ops, cs))
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cs = titleflex.Flexible(1.0)
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cs.Width.Min = cs.Width.Max
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ct1 := titleflex.End(title.Layout(ops, cs))
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c1 = flex.End(titleflex.Layout(ct1, ct2))
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page()
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margin.End(dims)
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w.Update(ops)
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}
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}
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}
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}
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