Unverified Commit ac3a5575 authored by Lemon-miaow's avatar Lemon-miaow
Browse files

fix(cli): Sync picker hides system servers; keep the two 409 refusals apart

Two defects from the live Sync drill:

- The picker listed the system servers (login/lobby), which the backup API can
  never accept (reserved names, no servers row): the pick died in name
  validation with a raw "server name is reserved" error. backupPickable now
  filters them out; the halt picker keeps them on purpose (break-glass retains
  full power over system servers).
- backupErrorFromResponse mapped every 409 to the stopped gate, so the new
  world-volume refusal would have displayed the wrong reason. The 409 arm now
  keys on the body's error code; a code-less body still reads as the stopped
  gate.

Live (auditfix38): the picker shows only user servers; a world-less pick shows
the API's own "no world volume yet — start it once" text; the not_stopped text
is unchanged.
parent 508a1c02
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+33 −9
Changes for cmd/felis/backupnow.go: 33 added lines, 9 removed lines.
Original line number Diff line number Diff line
@@ -86,23 +86,31 @@ func requestBackup(ctx context.Context, hc *http.Client, baseURL, token, name, o

// backupErrorFromResponse turns a non-202 into a human message. The well-known codes get
// an operator-facing explanation; anything else falls back to the API's
// {"error":{message}} body, then the bare status code.
// {"error":{code,message}} body, then the bare status code.
func backupErrorFromResponse(resp *http.Response) error {
	switch resp.StatusCode {
	case http.StatusConflict: // not_stopped
		return fmt.Errorf("the server must be stopped before its world can be backed up — halt it first")
	case http.StatusServiceUnavailable: // backup_unavailable
		return fmt.Errorf("the backup subsystem is not configured on felis-api (FELIS_IMAGE / FELIS_BACKUP_PVC unset)")
	case http.StatusNotFound:
		return fmt.Errorf("no such server")
	}
	var e struct {
		Error struct {
			Code    string `json:"code"`
			Message string `json:"message"`
		} `json:"error"`
	}
	raw, _ := io.ReadAll(io.LimitReader(resp.Body, 1<<16))
	_ = json.Unmarshal(raw, &e)

	switch resp.StatusCode {
	case http.StatusConflict:
		// Two refusals share 409: the stopped gate and the missing-world-volume
		// gate. The body's code distinguishes them; a code-less body reads as the
		// stopped gate (the only 409 before the volume gate existed), and any other
		// coded 409 falls through to the API's own operator text.
		if e.Error.Code == "" || e.Error.Code == "not_stopped" {
			return fmt.Errorf("the server must be stopped before its world can be backed up — halt it first")
		}
	case http.StatusServiceUnavailable: // backup_unavailable
		return fmt.Errorf("the backup subsystem is not configured on felis-api (FELIS_IMAGE / FELIS_BACKUP_PVC unset)")
	case http.StatusNotFound:
		return fmt.Errorf("no such server")
	}
	if e.Error.Message != "" {
		return fmt.Errorf("felis-api: %s", e.Error.Message)
	}
@@ -120,3 +128,19 @@ func performBackupNow(ctx context.Context, cl client.Client, controlNamespace, n
	hc := &http.Client{Timeout: 10 * time.Second}
	return requestBackup(ctx, hc, baseURL, token, name, osUser)
}

// backupPickable narrows the backup picker to servers the backup API can accept.
// System servers (login/lobby) are excluded: they have no row in the servers
// table and carry reserved names, so every attempt dies in name validation —
// offering them would be a dead pick. The halt picker keeps them on purpose
// (break-glass retains full power over system servers); only the API-backed
// backup op cannot reach them.
func backupPickable(servers []haltableServer) []haltableServer {
	out := make([]haltableServer, 0, len(servers))
	for _, s := range servers {
		if !s.system {
			out = append(out, s)
		}
	}
	return out
}
+32 −3
Changes for cmd/felis/backupnow_test.go: 32 added lines, 3 removed lines.
Original line number Diff line number Diff line
@@ -114,16 +114,23 @@ func TestRequestBackup(t *testing.T) {
	cases := []struct {
		name   string
		code   int
		body   string // optional JSON error body
		expect string
	}{
		{"409 not_stopped", http.StatusConflict, "must be stopped"},
		{"503 backup_unavailable", http.StatusServiceUnavailable, "not configured"},
		{"404 not found", http.StatusNotFound, "no such server"},
		{"409 not_stopped", http.StatusConflict, "", "must be stopped"},
		{"409 no_world_volume surfaces the API's own text", http.StatusConflict,
			`{"error":{"code":"no_world_volume","message":"this server has no world volume yet — start it once to create it, then retry"}}`,
			"no world volume yet"},
		{"503 backup_unavailable", http.StatusServiceUnavailable, "", "not configured"},
		{"404 not found", http.StatusNotFound, "", "no such server"},
	}
	for _, tc := range cases {
		t.Run(tc.name, func(t *testing.T) {
			srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
				w.WriteHeader(tc.code)
				if tc.body != "" {
					_, _ = io.WriteString(w, tc.body)
				}
			}))
			defer srv.Close()
			_, err := requestBackup(context.Background(), hc, srv.URL, "tok", "survival", "alice")
@@ -142,3 +149,25 @@ func TestRequestBackup(t *testing.T) {
		}
	})
}

// The Sync picker must not offer system servers: the backup API validates names
// and resolves a servers-table row, so a lobby/login pick can only die in
// validation — a dead choice in an emergency console.
func TestBackupPickable(t *testing.T) {
	got := backupPickable([]haltableServer{
		{name: "lobby", phase: "Running", system: true},
		{name: "login", phase: "Running", system: true},
		{name: "test-one", phase: "Stopped"},
	})
	if len(got) != 1 || got[0].name != "test-one" || got[0].system {
		t.Fatalf("backupPickable = %+v, want only the user server", got)
	}

	// Survivors keep their input order (the picker's cursor math depends on it).
	got = backupPickable([]haltableServer{
		{name: "alpha"}, {name: "login", system: true}, {name: "beta"},
	})
	if len(got) != 2 || got[0].name != "alpha" || got[1].name != "beta" {
		t.Fatalf("backupPickable order = %+v, want [alpha beta]", got)
	}
}
+1 −1
Changes for cmd/felis/tui_backupnow.go: 1 added line, 1 removed line.
Original line number Diff line number Diff line
@@ -86,7 +86,7 @@ func (m *backupModel) loadCmd() tea.Cmd {
		if err != nil {
			return backupListMsg{err: fmt.Errorf("list servers: %w", err)}
		}
		return backupListMsg{cl: cl, servers: servers}
		return backupListMsg{cl: cl, servers: backupPickable(servers)}
	}
}