| 1 | package relay |
| 2 | |
| 3 | import ( |
| 4 | "bytes" |
| 5 | "context" |
| 6 | "encoding/base64" |
| 7 | "os" |
| 8 | "path/filepath" |
| 9 | "reflect" |
| 10 | "strings" |
| 11 | "testing" |
| 12 | "time" |
| 13 | ) |
| 14 | |
| 15 | func TestParseMasters(t *testing.T) { |
| 16 | in := "k1 " + b64(bytes.Repeat([]byte{1}, 32)) + " -\n" + |
| 17 | "k0 " + b64(bytes.Repeat([]byte{2}, 32)) + " 2026-09-08T00:00:00Z\n" + |
| 18 | "# comment\n\n" |
| 19 | m, err := ParseMasters(strings.NewReader(in)) |
| 20 | if err != nil { |
| 21 | t.Fatal(err) |
| 22 | } |
| 23 | if got := m.Kids(); !reflect.DeepEqual(got, []string{"k0", "k1"}) { |
| 24 | t.Fatalf("kids = %v", got) |
| 25 | } |
| 26 | before := time.Date(2026, 9, 7, 0, 0, 0, 0, time.UTC) |
| 27 | after := time.Date(2026, 9, 9, 0, 0, 0, 0, time.UTC) |
| 28 | if _, ok := m.Lookup("k0", before); !ok { |
| 29 | t.Fatal("k0 should be live before retire_at") |
| 30 | } |
| 31 | if _, ok := m.Lookup("k0", after); ok { |
| 32 | t.Fatal("k0 should be retired after retire_at") |
| 33 | } |
| 34 | if _, ok := m.Lookup("k1", after); !ok { |
| 35 | t.Fatal("k1 never retires") |
| 36 | } |
| 37 | if _, ok := m.Lookup("kx", before); ok { |
| 38 | t.Fatal("unknown kid") |
| 39 | } |
| 40 | } |
| 41 | |
| 42 | func TestParseMastersRejectsBadLines(t *testing.T) { |
| 43 | for _, bad := range []string{"k1 notbase64 -", "k1 " + b64([]byte{1}) + " -", "K1 " + b64(bytes.Repeat([]byte{1}, 32)) + " -", "k1 " + b64(bytes.Repeat([]byte{1}, 32)) + " yesterday"} { |
| 44 | if _, err := ParseMasters(strings.NewReader(bad)); err == nil { |
| 45 | t.Errorf("accepted %q", bad) |
| 46 | } |
| 47 | } |
| 48 | } |
| 49 | |
| 50 | func b64(b []byte) string { return base64.StdEncoding.EncodeToString(b) } |
| 51 | |
| 52 | func TestWatchMastersReloadsOnChange(t *testing.T) { |
| 53 | old := mastersPollInterval |
| 54 | mastersPollInterval = 50 * time.Millisecond |
| 55 | defer func() { mastersPollInterval = old }() |
| 56 | |
| 57 | path := filepath.Join(t.TempDir(), "relay-masters") |
| 58 | write := func(s string) { |
| 59 | if err := os.WriteFile(path, []byte(s), 0o600); err != nil { |
| 60 | t.Fatal(err) |
| 61 | } |
| 62 | } |
| 63 | write("k1 " + b64(bytes.Repeat([]byte{1}, 32)) + " -\n") |
| 64 | ctx, cancel := context.WithCancel(context.Background()) |
| 65 | defer cancel() |
| 66 | got := make(chan []string, 4) |
| 67 | errs := make(chan error, 4) |
| 68 | go WatchMasters(ctx, path, func(m *Masters, err error) { |
| 69 | if err != nil { |
| 70 | errs <- err |
| 71 | return |
| 72 | } |
| 73 | got <- m.Kids() |
| 74 | }) |
| 75 | select { |
| 76 | case k := <-got: |
| 77 | if !reflect.DeepEqual(k, []string{"k1"}) { |
| 78 | t.Fatalf("initial kids = %v", k) |
| 79 | } |
| 80 | case err := <-errs: |
| 81 | t.Fatal(err) |
| 82 | case <-time.After(5 * time.Second): |
| 83 | t.Fatal("no initial load") |
| 84 | } |
| 85 | // Make the mtime observably newer, then rewrite with a second kid. |
| 86 | time.Sleep(20 * time.Millisecond) |
| 87 | write("k1 " + b64(bytes.Repeat([]byte{1}, 32)) + " -\nk2 " + b64(bytes.Repeat([]byte{2}, 32)) + " -\n") |
| 88 | future := time.Now().Add(2 * time.Second) |
| 89 | if err := os.Chtimes(path, future, future); err != nil { |
| 90 | t.Fatal(err) |
| 91 | } |
| 92 | select { |
| 93 | case k := <-got: |
| 94 | if !reflect.DeepEqual(k, []string{"k1", "k2"}) { |
| 95 | t.Fatalf("reloaded kids = %v", k) |
| 96 | } |
| 97 | case err := <-errs: |
| 98 | t.Fatal(err) |
| 99 | case <-time.After(15 * time.Second): |
| 100 | t.Fatal("no reload within three poll ticks") |
| 101 | } |
| 102 | } |
| 103 | |
| 104 | // Retiring is what `carlos relay status` turns into "when may this key leave |
| 105 | // the box" (discussion #120). A master with no retirement date must be absent |
| 106 | // rather than present with a zero time, or the CLI prints a retirement for |
| 107 | // every key a box holds. |
| 108 | func TestMastersRetiring(t *testing.T) { |
| 109 | m, err := ParseMasters(strings.NewReader( |
| 110 | "k0 " + base64.StdEncoding.EncodeToString(testMaster()) + " -\n" + |
| 111 | "k1 " + base64.StdEncoding.EncodeToString(testMaster()) + " 2026-09-09T12:00:00Z\n")) |
| 112 | if err != nil { |
| 113 | t.Fatal(err) |
| 114 | } |
| 115 | r := m.Retiring() |
| 116 | if len(r) != 1 { |
| 117 | t.Fatalf("Retiring() = %v, want just k1", r) |
| 118 | } |
| 119 | if got, want := r["k1"].UTC().Format(time.RFC3339), "2026-09-09T12:00:00Z"; got != want { |
| 120 | t.Errorf("k1 retire_at = %s, want %s", got, want) |
| 121 | } |
| 122 | if _, ok := r["k0"]; ok { |
| 123 | t.Error("k0 has no retirement date and must not appear") |
| 124 | } |
| 125 | } |
| 126 | |
amadan