edit_preedit_password_test.go RawHistoryFolder

1package ui
2
3import (
4	"bytes"
5	"encoding/json"
6	"testing"
7
8	"github.com/bnema/nefergui/internal/css"
9	"github.com/bnema/nefergui/internal/edit"
10	"github.com/bnema/nefergui/internal/text"
11)
12
13func TestPasswordPreeditNeverLeaksIntoDisplay(t *testing.T) {
14	catalog, err := text.Load(text.DirectorySource("../../testdata/fonts"))
15	if err != nil {
16		t.Fatal(err)
17	}
18	r := newRuntime()
19	r.setTextEngine(text.NewEngine(catalog))
20	r.styles = css.Compile(css.UA(), css.Parse(`input {width:250px;height:28px;font-size:16px}`))
21	value := "a"
22	view := func(f *Frame) { f.Root().Input("secret", &value, Password(true)) }
23	r.Build(view)
24	r.route(key("Tab"))
25	r.Build(view)
26	secret := "e\u0301猫"
27	r.route(platformInput{Kind: "ime-done", IME: edit.IMEBatch{Preedit: secret, Begin: len("e\u0301")}})
28	r.Build(view)
29	data, err := json.Marshal(r.output.Display)
30	if err != nil {
31		t.Fatal(err)
32	}
33	if bytes.Contains(data, []byte(secret)) || bytes.Contains(data, []byte("猫")) || bytes.Contains(data, []byte("e\u0301")) {
34		t.Fatalf("plaintext leaked: %s", data)
35	}
36	if value != "a" {
37		t.Fatalf("preedit modified model: %q", value)
38	}
39	found := false
40	for _, c := range r.output.Display {
41		if c.Op == "preedit-text" {
42			found = true
43			if c.Text != "••" || len(c.Runs) == 0 {
44				t.Fatalf("wrong grapheme masking: %+v", c)
45			}
46		}
47	}
48	if !found {
49		t.Fatal("missing masked preedit")
50	}
51}