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| 1 | package host |
| 2 | |
| 3 | import ( |
| 4 | "os" |
| 5 | "path/filepath" |
| 6 | "testing" |
| 7 | "time" |
| 8 | |
| 9 | "github.com/carlosframework/platform/internal/rollout" |
| 10 | "golang.org/x/sys/unix" |
| 11 | ) |
| 12 | |
| 13 | func TestPlan14RootFailureLegacySpecialFiles(t *testing.T) { |
| 14 | for _, kind := range []string{"fifo", "symlink", "regular", "absent"} { |
| 15 | t.Run(kind, func(t *testing.T) { |
| 16 | dir := t.TempDir() |
| 17 | path := filepath.Join(dir, rollout.FailureFile) |
| 18 | switch kind { |
| 19 | case "fifo": |
| 20 | if err := unix.Mkfifo(path, 0600); err != nil { |
| 21 | t.Fatal(err) |
| 22 | } |
| 23 | case "symlink": |
| 24 | target := filepath.Join(dir, "target") |
| 25 | if err := os.WriteFile(target, []byte("legacy"), 0600); err != nil { |
| 26 | t.Fatal(err) |
| 27 | } |
| 28 | if err := os.Symlink(target, path); err != nil { |
| 29 | t.Fatal(err) |
| 30 | } |
| 31 | case "regular": |
| 32 | if err := os.WriteFile(path, []byte("legacy"), 0600); err != nil { |
| 33 | t.Fatal(err) |
| 34 | } |
| 35 | } |
| 36 | done := make(chan error, 1) |
| 37 | go func() { _, err := rootFailureLegacy(dir); done <- err }() |
| 38 | select { |
| 39 | case err := <-done: |
| 40 | if (err == nil) != (kind == "regular" || kind == "absent") { |
| 41 | t.Fatal("unsafe legacy reader", kind, err) |
| 42 | } |
| 43 | case <-time.After(time.Second): |
| 44 | t.Fatal("legacy file blocked root") |
| 45 | } |
| 46 | }) |
| 47 | } |
| 48 | } |
| 49 | |
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