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Merge change request 01M70WES5ZZDJ6RP226WB11BBZ: Let people rename and remove their own passkeys
keenan · 23m ago
4b8c9e1d
| 1 | package server_test |
| 2 | |
| 3 | // The deployment baseline, checked the way an operator would: look at the modes |
| 4 | // of everything a fresh instance creates and refuse to be surprised by one. |
| 5 | |
| 6 | import ( |
| 7 | "io" |
| 8 | "log/slog" |
| 9 | "os" |
| 10 | "path/filepath" |
| 11 | "testing" |
| 12 | |
| 13 | "rodent.software/vole/server" |
| 14 | ) |
| 15 | |
| 16 | // TestFreshInstanceCreatesNoReadableSecrets is the acceptance criterion for a |
| 17 | // new install: the roster, the host key and the audit log are for the service |
| 18 | // account, not for everyone with a shell. |
| 19 | func TestFreshInstanceCreatesNoReadableSecrets(t *testing.T) { |
| 20 | t.Parallel() |
| 21 | f := newFixture(t) |
| 22 | |
| 23 | // A privileged operation, so the audit log exists and is written by the code |
| 24 | // that will write it in production. |
| 25 | f.addWriter(t) |
| 26 | |
| 27 | paths := []string{ |
| 28 | f.cfg.DataDir, |
| 29 | f.cfg.UsersDB(), |
| 30 | f.cfg.IndexDB(), |
| 31 | f.cfg.RunsDB(), |
| 32 | f.cfg.SSHHostKey(), |
| 33 | f.cfg.AuditLog(), |
| 34 | } |
| 35 | for _, path := range paths { |
| 36 | st, err := os.Stat(path) |
| 37 | if err != nil { |
| 38 | t.Fatalf("%s: %v", path, err) |
| 39 | } |
| 40 | mode := st.Mode().Perm() |
| 41 | if st.IsDir() { |
| 42 | if mode&0o007 != 0 { |
| 43 | t.Errorf("%s is %04o: world-accessible", path, mode) |
| 44 | } |
| 45 | continue |
| 46 | } |
| 47 | if mode&0o077 != 0 { |
| 48 | t.Errorf("%s is %04o: readable beyond the service account", path, mode) |
| 49 | } |
| 50 | } |
| 51 | } |
| 52 | |
| 53 | // TestUpgradedInstanceHasItsSecretsTightened covers the instance that already |
| 54 | // existed: the files are there, and they were created 0644. |
| 55 | func TestUpgradedInstanceHasItsSecretsTightened(t *testing.T) { |
| 56 | t.Parallel() |
| 57 | f := newFixture(t) |
| 58 | f.addWriter(t) |
| 59 | |
| 60 | for _, path := range []string{f.cfg.UsersDB(), f.cfg.SSHHostKey(), f.cfg.AuditLog()} { |
| 61 | if err := os.Chmod(path, 0o644); err != nil { |
| 62 | t.Fatal(err) |
| 63 | } |
| 64 | } |
| 65 | |
| 66 | // Starting the instance is what tightens them, so build a second server over |
| 67 | // the same directory the way a restart does. |
| 68 | restarted, err := server.New(f.cfg, binPath, slog.New(slog.NewTextHandler(io.Discard, nil))) |
| 69 | if err != nil { |
| 70 | t.Fatalf("restart refused to start over an instance with loose modes: %v", err) |
| 71 | } |
| 72 | t.Cleanup(func() { restarted.Close() }) |
| 73 | |
| 74 | for _, path := range []string{f.cfg.UsersDB(), f.cfg.SSHHostKey(), f.cfg.AuditLog()} { |
| 75 | st, err := os.Stat(path) |
| 76 | if err != nil { |
| 77 | t.Fatal(err) |
| 78 | } |
| 79 | if mode := st.Mode().Perm(); mode&0o077 != 0 { |
| 80 | t.Errorf("%s is %04o after a restart", path, mode) |
| 81 | } |
| 82 | } |
| 83 | } |
| 84 | |
| 85 | // TestBackupIsNotWorldReadable: `vole admin account backup` writes every account, |
| 86 | // key and passkey to a path the operator chooses, so the copy needs the mode the |
| 87 | // original has. |
| 88 | func TestBackupIsNotWorldReadable(t *testing.T) { |
| 89 | t.Parallel() |
| 90 | f := newFixture(t) |
| 91 | f.addWriter(t) |
| 92 | |
| 93 | dst := filepath.Join(t.TempDir(), "roster.db") |
| 94 | if err := f.srv.Identity.Backup(dst); err != nil { |
| 95 | t.Fatal(err) |
| 96 | } |
| 97 | st, err := os.Stat(dst) |
| 98 | if err != nil { |
| 99 | t.Fatal(err) |
| 100 | } |
| 101 | if mode := st.Mode().Perm(); mode&0o077 != 0 { |
| 102 | t.Fatalf("%s is %04o: the backup is readable beyond its owner", dst, mode) |
| 103 | } |
| 104 | } |
| 105 |