| 1 | package cli |
| 2 | |
| 3 | import ( |
| 4 | "bytes" |
| 5 | "encoding/json" |
| 6 | "os" |
| 7 | "path/filepath" |
| 8 | "runtime" |
| 9 | "strings" |
| 10 | "sync" |
| 11 | "testing" |
| 12 | ) |
| 13 | |
| 14 | func installMachineTestIdentity(t *testing.T) []byte { |
| 15 | t.Helper() |
| 16 | root := t.TempDir() |
| 17 | t.Setenv("REASONIX_HOME", root) |
| 18 | t.Setenv("REASONIX_STATE_HOME", "") |
| 19 | key := bytes.Repeat([]byte{0x5a}, machineIdentityKeyBytes) |
| 20 | if err := os.WriteFile(filepath.Join(root, machineIdentityKeyFile), key, 0o600); err != nil { |
| 21 | t.Fatalf("write machine identity key: %v", err) |
| 22 | } |
| 23 | return key |
| 24 | } |
| 25 | |
| 26 | func TestMachineIdentityKeyInitializesOnceAcrossConcurrentReaders(t *testing.T) { |
| 27 | root := t.TempDir() |
| 28 | t.Setenv("REASONIX_HOME", root) |
| 29 | t.Setenv("REASONIX_STATE_HOME", "") |
| 30 | |
| 31 | type result struct { |
| 32 | key []byte |
| 33 | err error |
| 34 | } |
| 35 | const readers = 16 |
| 36 | results := make(chan result, readers) |
| 37 | var wg sync.WaitGroup |
| 38 | for range readers { |
| 39 | wg.Go(func() { |
| 40 | key, err := loadMachineIdentityKey() |
| 41 | results <- result{key: key, err: err} |
| 42 | }) |
| 43 | } |
| 44 | wg.Wait() |
| 45 | close(results) |
| 46 | |
| 47 | var want []byte |
| 48 | for result := range results { |
| 49 | if result.err != nil { |
| 50 | t.Fatalf("load machine identity key: %v", result.err) |
| 51 | } |
| 52 | if want == nil { |
| 53 | want = result.key |
| 54 | continue |
| 55 | } |
| 56 | if !bytes.Equal(result.key, want) { |
| 57 | t.Fatalf("concurrent readers observed different identity keys") |
| 58 | } |
| 59 | } |
| 60 | if len(want) != machineIdentityKeyBytes { |
| 61 | t.Fatalf("identity key length = %d, want %d", len(want), machineIdentityKeyBytes) |
| 62 | } |
| 63 | info, err := os.Stat(filepath.Join(root, machineIdentityKeyFile)) |
| 64 | if err != nil { |
| 65 | t.Fatalf("stat machine identity key: %v", err) |
| 66 | } |
| 67 | if runtime.GOOS != "windows" && info.Mode().Perm() != 0o600 { |
| 68 | t.Fatalf("identity key permissions = %o, want 600", info.Mode().Perm()) |
| 69 | } |
| 70 | } |
| 71 | |
| 72 | func TestMachineIdentityKeyCorruptionFailsClosed(t *testing.T) { |
| 73 | root := t.TempDir() |
| 74 | t.Setenv("REASONIX_HOME", root) |
| 75 | t.Setenv("REASONIX_STATE_HOME", "") |
| 76 | path := filepath.Join(root, machineIdentityKeyFile) |
| 77 | if err := os.WriteFile(path, []byte("corrupt"), 0o600); err != nil { |
| 78 | t.Fatal(err) |
| 79 | } |
| 80 | if _, err := loadMachineIdentityKey(); err == nil { |
| 81 | t.Fatal("corrupt identity key was silently accepted or rotated") |
| 82 | } |
| 83 | |
| 84 | var out bytes.Buffer |
| 85 | if code := runSessionCommand([]string{"list", "--json", "--dir", t.TempDir()}, &out); code != 1 { |
| 86 | t.Fatalf("exit code = %d, output = %s", code, out.String()) |
| 87 | } |
| 88 | var response machineErrorResponse |
| 89 | if err := json.Unmarshal(out.Bytes(), &response); err != nil { |
| 90 | t.Fatalf("decode machine error: %v", err) |
| 91 | } |
| 92 | if response.Error.Code != "machine_identity_unavailable" || strings.Contains(out.String(), root) { |
| 93 | t.Fatalf("machine error leaked identity details: %+v", response) |
| 94 | } |
| 95 | body, err := os.ReadFile(path) |
| 96 | if err != nil { |
| 97 | t.Fatal(err) |
| 98 | } |
| 99 | if string(body) != "corrupt" { |
| 100 | t.Fatalf("corrupt identity key was silently replaced: %q", body) |
| 101 | } |
| 102 | } |
| 103 | |
| 104 | func TestEventsJSONLRejectsCorruptIdentityBeforeRuntimeSetup(t *testing.T) { |
| 105 | root := t.TempDir() |
| 106 | t.Setenv("REASONIX_HOME", root) |
| 107 | t.Setenv("REASONIX_STATE_HOME", "") |
| 108 | if err := os.WriteFile(filepath.Join(root, machineIdentityKeyFile), []byte("corrupt"), 0o600); err != nil { |
| 109 | t.Fatal(err) |
| 110 | } |
| 111 | var code int |
| 112 | stderr := captureStderr(t, func() { |
| 113 | code = runAgent([]string{"--events-jsonl", "do not start a provider run"}, "dev") |
| 114 | }) |
| 115 | if code != 1 || !strings.Contains(stderr, "machine identity is unavailable") { |
| 116 | t.Fatalf("run exit=%d stderr=%q", code, stderr) |
| 117 | } |
| 118 | if strings.Contains(stderr, root) { |
| 119 | t.Fatalf("run error leaked identity path: %q", stderr) |
| 120 | } |
| 121 | } |
| 122 |