commit e8a4ad031b20cc30b44f6c0bb317af4ddfea3a2e
Author: Greg <gmp@wow.st>
Date:   Wed Sep 4 22:19:39 2019 -0400

    Initial commit

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..1dce362
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+cmd/gpass/gpass
+cmd/gpass-gui/gpass-gui
diff --git a/cmd/gpass-gui/log.go b/cmd/gpass-gui/log.go
new file mode 100644
index 0000000..83d8756
--- /dev/null
+++ b/cmd/gpass-gui/log.go
@@ -0,0 +1,28 @@
+package main
+
+import (
+	golog "log"
+	"os"
+)
+
+type logLevelT int
+const (
+        Fatal logLevelT = 1 << iota
+        Error
+        Warn
+        Info
+        Debug
+	DebugGfx
+)
+
+var loglevel = Fatal | Error | Warn | Info
+
+func log(level logLevelT, msg ...interface{}) {
+        if level & loglevel != 0 {
+                golog.Print(msg...)
+        }
+        if level & Fatal != 0 {
+                os.Exit(-1)
+        }
+}
+
diff --git a/cmd/gpass-gui/main.go b/cmd/gpass-gui/main.go
new file mode 100644
index 0000000..16c049d
--- /dev/null
+++ b/cmd/gpass-gui/main.go
@@ -0,0 +1,243 @@
+// +build darwin linux
+
+package main
+
+import (
+	//"fmt"
+	"path"
+	"strings"
+	"image"
+	"image/color"
+	"sync"
+
+	"gioui.org/ui"
+	"gioui.org/ui/app"
+	"gioui.org/ui/input"
+	"gioui.org/ui/key"
+	"gioui.org/ui/layout"
+	"gioui.org/ui/text"
+	"gioui.org/ui/measure"
+	"gioui.org/ui/f32"
+	"gioui.org/ui/paint"
+	"gioui.org/ui/gesture"
+	"gioui.org/ui/pointer"
+
+	"github.com/fsnotify/fsnotify"
+	"golang.org/x/image/font/gofont/goregular"
+	"golang.org/x/image/font/sfnt"
+
+
+	"git.wow.st/gmp/pass"
+)
+
+func main() {
+	var err error
+	store,err = pass.GetStore()
+	if err != nil {
+		log(Fatal, err)
+	}
+	updated = make(chan struct{})
+	go Updater()
+	log(Info,"Staring event loop")
+	go eventLoop()
+	app.Main()
+	log(Info,"Event loop returned")
+}
+
+var (
+	l []pass.Pass
+	mux sync.Mutex
+	store *pass.Store
+	updated chan struct{}
+)
+
+func Updater() {
+	update := func() {
+		ltmp,err := store.List()
+		if err != nil {
+			log(Fatal, err)
+		}
+		mux.Lock()
+		l = ltmp
+		mux.Unlock()
+		updated <- struct{}{}
+	}
+	update()
+
+	watcher, err := fsnotify.NewWatcher()
+	if err != nil {
+		log(Fatal, err)
+	}
+	watcher.Add(store.Dir)
+	for {
+		select {
+		case <-watcher.Events:
+			update()
+		case e := <-watcher.Errors:
+			log(Info, "Watcher error: ",e)
+		}
+	}
+}
+
+type Button struct {
+	Face text.Face
+	Label string
+	Click gesture.Click
+	Color color.RGBA
+	clicked bool
+}
+
+func layoutRRect(col color.RGBA, c ui.Config, ops *ui.Ops, cs layout.Constraints) layout.Dimensions {
+	r := float32(c.Px(ui.Dp(4)))
+	sz := image.Point{X: cs.Width.Min, Y: cs.Height.Min}
+	w, h := float32(sz.X), float32(sz.Y)
+	rrect(ops, w, h, r, r, r, r)
+	paint.ColorOp{Color: col}.Add(ops)
+	paint.PaintOp{Rect: f32.Rectangle{Max: f32.Point{X: w, Y: h}}}.Add(ops)
+	return layout.Dimensions{Size: sz}
+}
+
+// https://pomax.github.io/bezierinfo/#circles_cubic.
+func rrect(ops *ui.Ops, width, height, se, sw, nw, ne float32) {
+	w, h := float32(width), float32(height)
+	const c = 0.55228475 // 4*(sqrt(2)-1)/3
+	var b paint.PathBuilder
+	b.Init(ops)
+	b.Move(f32.Point{X: w, Y: h - se})
+	b.Cube(f32.Point{X: 0, Y: se * c}, f32.Point{X: -se + se*c, Y: se}, f32.Point{X: -se, Y: se}) // SE
+	b.Line(f32.Point{X: sw - w + se, Y: 0})
+	b.Cube(f32.Point{X: -sw * c, Y: 0}, f32.Point{X: -sw, Y: -sw + sw*c}, f32.Point{X: -sw, Y: -sw}) // SW
+	b.Line(f32.Point{X: 0, Y: nw - h + sw})
+	b.Cube(f32.Point{X: 0, Y: -nw * c}, f32.Point{X: nw - nw*c, Y: -nw}, f32.Point{X: nw, Y: -nw}) // NW
+	b.Line(f32.Point{X: w - ne - nw, Y: 0})
+	b.Cube(f32.Point{X: ne * c, Y: 0}, f32.Point{X: ne, Y: ne - ne*c}, f32.Point{X: ne, Y: ne}) // NE
+	b.End()
+}
+
+
+func (b *Button) Layout(c ui.Config, ops *ui.Ops, q input.Queue, cs layout.Constraints) layout.Dimensions {
+	b.clicked = false
+	for ev, ok := b.Click.Next(q); ok; ev, ok = b.Click.Next(q) {
+		if ev.Type == gesture.TypeClick {
+			b.clicked = true
+		}
+	}
+	ins := layout.UniformInset(ui.Dp(1))
+	cs = ins.Begin(c, ops, cs)
+	var dims layout.Dimensions
+	st := layout.Stack{}
+	st.Init(ops, cs)
+	{
+		cs = st.Rigid()
+		l := text.Label{
+			Face: b.Face,
+			Text: b.Label,
+		}
+		ins := layout.UniformInset(ui.Dp(4))
+		dims = ins.End(l.Layout(ops, ins.Begin(c, ops, cs)))
+		pointer.RectAreaOp{image.Rect(0, 0, dims.Size.X, dims.Size.Y)}.Add(ops)
+		b.Click.Add(ops)
+	}
+	c2 := st.End(dims)
+	c1 := st.End(layoutRRect(b.Color, c, ops, st.Expand()))
+	dims = st.Layout(c1, c2)
+	return ins.End(dims)
+}	
+
+func (b *Button) Clicked() bool {
+	return b.clicked
+}
+
+func eventLoop() {
+	w := app.NewWindow(app.WithWidth(ui.Dp(250)))
+	q := w.Queue()
+	_ = q
+	ops := new(ui.Ops)
+	var faces measure.Faces
+	regular, err := sfnt.Parse(goregular.TTF)
+	if err != nil {
+		log(Fatal, "Cannot parse font.")
+	}
+	face := faces.For(regular, ui.Sp(16))
+
+	margin := layout.UniformInset(ui.Dp(10))
+	passInput := &text.Editor{Face: face, SingleLine: true}
+	passInput.SetText("passphrase")
+	passSubmit := &Button{Face: face, Label: "submit"}
+	lst := &layout.List{Axis: layout.Vertical}
+	passBtns := make([]*Button,0)
+	_ = passInput
+	_ = passSubmit
+	pathnames := make([]string,0)
+
+	updateBtns := func() {
+		passBtns = passBtns[:0]
+		pathnames = pathnames[:0]
+		mux.Lock()
+		for _,x := range l {
+			_, n := path.Split(x.Pathname)
+			s := strings.Repeat("  /",x.Level)
+			z := ""
+			if x.Dir { z = "/" }
+			passBtns = append(passBtns,&Button{
+				Face:face,
+				Label:strings.Join([]string{s,n,z},""),
+				Color: color.RGBA{A: 0xff, R: 0xf0, G: 0xf0, B: 0xf0},
+			})
+			pathnames = append(pathnames, x.Pathname)
+		}
+		mux.Unlock()
+	}
+	updateBtns()
+
+
+        for {
+                select {
+                case <-updated:
+			log(Info,"UPDATE")
+			updateBtns()
+                        w.Invalidate()
+                case e := <-w.Events():
+			switch e := e.(type) {
+			case app.DestroyEvent:
+				return
+			case app.UpdateEvent:
+				c := &e.Config
+				ops.Reset()
+                        	faces.Reset(c)
+				var dims layout.Dimensions
+				cs := layout.RigidConstraints(e.Size)
+				cs = margin.Begin(c, ops, cs)
+
+				mux.Lock()
+				if lst.Dragging() {
+					key.HideInputOp{}.Add(ops)
+				}
+				for lst.Init(c, q, ops, cs, len(passBtns)); lst.More(); lst.Next() {
+					btn := passBtns[lst.Index()]
+					dims = btn.Layout(c, ops, q, lst.Constraints())
+					lst.End(dims)
+					if btn.Clicked() {
+						// don't block UI thread on decryption attempt
+						log(Info,"Clicked ", btn.Label)
+						go func(name string) {
+							//p,err := store.Decrypt(name, prompt)
+							p,err := store.Decrypt(name)
+							if err == nil {
+								pass.Clip(p)
+							} else {
+								log(Info,"Can't decrypt ", name)
+								log(Info,err)
+							}
+						}(pathnames[lst.Index()])
+					}
+				}
+				mux.Unlock()
+				dims = lst.Layout()
+				dims = margin.End(dims)
+                        	w.Update(ops)
+			}
+                }
+        }
+}
+
diff --git a/cmd/gpass/main.go b/cmd/gpass/main.go
new file mode 100644
index 0000000..7f26711
--- /dev/null
+++ b/cmd/gpass/main.go
@@ -0,0 +1,76 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"path"
+	"strings"
+
+	"gitlab.wow.st/gmp/pass"
+)
+
+func usage() {
+	fmt.Println("gpass [-c|--clip] [name]")
+	os.Exit(-1)
+}
+
+type options struct {
+	clip bool
+}
+
+func parse(args []string) ([]string,options) {
+	ret := make([]string,0)
+	opts := options{}
+	for _,a := range args {
+		switch {
+		case a == "-c",a == "--clip":
+			opts.clip = true
+		case a[0] == '-':
+			usage()
+		default:
+			ret = append(ret,a)
+		}
+	}
+	return ret,opts
+}
+
+func main() {
+	store,err := pass.GetStore()
+	if err != nil {
+		fmt.Println(err)
+		os.Exit(-1)
+	}
+
+	args := os.Args[1:]
+	args,opts := parse(args)
+	switch len(args) {
+	case 0:
+		l,err := store.List()
+		if err != nil {
+			fmt.Println(err)
+			os.Exit(-1)
+		}
+		for _, x := range l {
+			_, n := path.Split(x.Pathname)
+			s := strings.Repeat("  /",x.Level)
+			z := ""
+			if x.Dir { z = "/" }
+			fmt.Println(strings.Join([]string{s,n,z},""))
+		}
+	case 1:
+		p,err := store.Decrypt(args[0])
+		if err != nil {
+			fmt.Println(err)
+			os.Exit(-1)
+		}
+		if opts.clip {
+			pass.Clip(p)
+		} else {
+			fmt.Print(p)
+		}
+	default:
+		usage()
+	}
+	pass.AskPass2()
+}
+
diff --git a/impl_darwin.go b/impl_darwin.go
new file mode 100644
index 0000000..81e8308
--- /dev/null
+++ b/impl_darwin.go
@@ -0,0 +1,85 @@
+//+build !android !linux
+
+package pass
+
+import (
+	"fmt"
+	"bufio"
+	"bytes"
+	"os"
+	"os/exec"
+	"os/user"
+	"path"
+	"strconv"
+)
+
+func setAgentInfo() {
+	// get UID
+	usr, err := user.Current()
+	if err != nil {
+		fmt.Printf("Error: cannot get user ID: %s\n", err)
+		return
+	}
+	uid := usr.Uid
+
+	// get GPG Agent PID
+	output, err := exec.Command("pgrep", "-U", uid, "gpg-agent").Output()
+	if err != nil {
+		fmt.Printf("Error: %s\n", err)
+		return
+	} else {
+		fmt.Printf("gpg-agent process number is %s\n", output)
+	}
+	pid, err := strconv.Atoi(string(output[:len(output)-1]))
+	if err != nil {
+		fmt.Printf("Integer conversion failed: %s\n", err)
+		return
+	}
+
+	// find agent socket file
+	cmd := exec.Command("lsof", "-w", "-Fn", "-u", uid, "-baUcgpg-agent")
+	stdout, err := cmd.StdoutPipe()
+	if err != nil {
+		fmt.Printf("Error: connect stdout to lsof: %s\n", err)
+		return
+	}
+	scanner := bufio.NewScanner(stdout)
+	err = cmd.Start()
+	if err != nil {
+		fmt.Printf("Error: cannot run lsof: %s\n", err)
+	}
+
+	filename := ""
+	for scanner.Scan() {
+		x := scanner.Text()
+		if x[0] != 'n' {
+			continue
+		}
+		x = x[1:]
+		if path.Base(x) == "S.gpg-agent" {
+			fmt.Println(x)
+			filename = x
+		}
+	}
+	cmd.Wait()
+
+	if filename == "" {
+		fmt.Printf("Error: gpg-agent socket file not found\n")
+		return
+	}
+	s := fmt.Sprintf("%s:%d:1", filename, pid)
+	fmt.Printf("GPG_AGENT_INFO = %s\n", s)
+	os.Setenv("GPG_AGENT_INFO",s)
+}
+
+func init() {
+	setAgentInfo()
+}
+
+func Clip(x string) {
+	b := bytes.NewBuffer([]byte(x))
+	cmd := exec.Command("pbcopy")
+	cmd.Stdin = b
+	cmd.Run()
+}
+
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..83b7b69
--- /dev/null
+++ b/main.go
@@ -0,0 +1,217 @@
+package pass
+
+import (
+	"bufio"
+	"encoding/hex"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"os"
+	"os/user"
+	"path"
+	"regexp"
+	"sort"
+	"strings"
+
+	"github.com/jcmdev0/gpgagent"
+
+	"golang.org/x/crypto/openpgp"
+	"golang.org/x/crypto/openpgp/armor"
+	"golang.org/x/crypto/openpgp/packet"
+)
+
+var (
+	basename *regexp.Regexp
+)
+
+func init() {
+	basename = regexp.MustCompile(".gpg$")
+}
+
+type Store struct {
+	Dir string
+	keyring openpgp.KeyRing
+}
+
+func GetStore() (*Store, error) {
+	ret := &Store{}
+        u, err := user.Current()
+        if err != nil {
+                return ret, fmt.Errorf("Can't get current user.")
+        }
+	ret.Dir = path.Join(u.HomeDir,".password-store")
+
+	fd, err := os.Open(path.Join(u.HomeDir,".gnupg/secring.gpg"))
+	defer fd.Close()
+	if err != nil {
+		return ret, fmt.Errorf("Can't open keyring file")
+	}
+	kr, err := openpgp.ReadKeyRing(fd)
+	if err != nil {
+		return ret, fmt.Errorf("Can't open gnupg keyring.")
+	}
+	ret.keyring = kr
+        return ret, nil
+}
+
+type caseInsensitive []os.FileInfo
+
+func (fs caseInsensitive) Len() int { return len(fs) }
+func (fs caseInsensitive) Swap(i, j int) { fs[i], fs[j] = fs[j], fs[i] }
+func (fs caseInsensitive) Less(i, j int) bool {
+        return strings.ToLower(fs[i].Name()) < strings.ToLower(fs[j].Name())
+}
+
+type Pass struct {
+	Pathname string
+	Level int
+	Dir bool
+}
+
+func (s *Store) List() ([]Pass,error) {
+	return s.list(0,"")
+}
+
+func (s *Store) list(level int, p string) ([]Pass,error) {
+	ret := make([]Pass,0)
+	dir := path.Join(s.Dir,p)
+	fd, err := os.Open(dir)
+	defer fd.Close()
+	if err != nil {
+		return nil, fmt.Errorf("Cannot open password store")
+	}
+	files, err := fd.Readdir(0)
+	if err != nil {
+		return nil, fmt.Errorf("Cannot read password store")
+	}
+	sort.Sort(caseInsensitive(files))
+	for _, x := range files {
+		n := basename.ReplaceAllLiteralString(x.Name(),"")
+		entry := Pass{Pathname: path.Join(p,n),Level: level}
+
+		if n[0] == '.' {
+			continue
+		}
+		if x.IsDir() {
+			entry.Dir = true
+			ret = append(ret,entry)
+			l,err := s.list(level+1,path.Join(p,x.Name()))
+			if err != nil {
+				return nil,err
+			}
+			ret = append(ret,l...)
+		} else {
+			ret = append(ret,entry)
+		}
+	}
+	return ret,nil
+}
+
+func AskPass(prompts ...func() []byte) openpgp.PromptFunction {
+	var prompt func() []byte
+	if len(prompts) > 0 {
+		prompt = prompts[0]
+	} else {
+		prompt = func() []byte {
+			fmt.Print("AskPass(): enter passphrase: ")
+			reader := bufio.NewReader(os.Stdin)
+			text, _ := reader.ReadString('\n')
+			return []byte(text[:len(text)-1])
+		}
+	}
+
+	var err error
+	var passphrase []byte
+	dec := func(p *packet.PrivateKey) {
+		for i := 0; i<3; i++ {
+			if err = p.Decrypt(passphrase); err == nil {
+				break
+			}
+			passphrase = prompt()
+		}
+	}
+
+	var ret openpgp.PromptFunction
+	ret = func(keys []openpgp.Key, symmetric bool) ([]byte, error) {
+		if !symmetric {
+			for _,k := range keys {
+				if p := k.PrivateKey; p != nil && p.Encrypted {
+					dec(p)
+				}
+				for _, s := range k.Entity.Subkeys {
+					if p := s.PrivateKey; p != nil && p.Encrypted {
+						dec(p)
+					}
+				}
+			}
+		}
+		return passphrase, err
+	}
+	return ret
+}
+
+//https://github.com/jcmdev0/gpgagent/blob/master/example/example.go
+func GPGPrompt(keys []openpgp.Key, symmetric bool) ([]byte, error) {
+	conn, err := gpgagent.NewGpgAgentConn()
+	if err != nil {
+		return nil, err
+	}
+	defer conn.Close()
+
+	for _, key := range keys {
+		cacheId := strings.ToUpper(hex.EncodeToString(key.PublicKey.Fingerprint[:]))
+		request := gpgagent.PassphraseRequest{CacheKey: cacheId}
+		passphrase, err := conn.GetPassphrase(&request)
+		if err != nil {
+			return nil, err
+		}
+		err = key.PrivateKey.Decrypt([]byte(passphrase))
+		if err != nil {
+			return nil, err
+		}
+		return []byte(passphrase), nil
+	}
+	return nil, fmt.Errorf("Unable to find key")
+}
+
+func (s *Store) Decrypt(name string, prompts ...func() []byte) (string,error) {
+	var ask openpgp.PromptFunction
+	if len(prompts) > 0 {
+		ask = AskPass(prompts...)
+	} else {
+		ask = GPGPrompt
+	}
+	file := path.Join(s.Dir, strings.Join([]string{name,".gpg"},""))
+	if _, err := os.Stat(file); os.IsNotExist(err) {
+		return "",fmt.Errorf("Not in password store.")
+	}
+	fd, err := os.Open(file)
+	defer fd.Close()
+	if err != nil {
+		return "",err
+	}
+	var reader io.Reader
+	unarmor, err := armor.Decode(fd)
+	if err == nil {
+		reader = unarmor.Body
+	} else {
+		fd.Close()
+		fd, err = os.Open(file)
+		defer fd.Close()
+		if err != nil {
+			return "",err
+		}
+		reader = fd
+	}
+	md, err := openpgp.ReadMessage(reader,s.keyring,ask,nil)
+	if err != nil {
+		fmt.Println("Error reading message")
+		return "",err
+	}
+	ra, err := ioutil.ReadAll(md.UnverifiedBody)
+	if err != nil {
+		return "",err
+	}
+	return string(ra), nil
+}
+