| 1 | package fixture |
| 2 | |
| 3 | // Not compiled. The ways round the provenance rule that the 2026-10-11 |
| 4 | // re-review of Plan 6 Task 1a found, plus a forged serverText. Each one |
| 5 | // must fail the gate (TestMovesProvenanceBypassesFail). |
| 6 | |
| 7 | type serverText struct{ spoken string } |
| 8 | |
| 9 | type moveJournal struct{ StuckReason string } |
| 10 | |
| 11 | func moveSay(out int, line string) {} |
| 12 | |
| 13 | func sayError(out int, err error) { moveSay(out, err.Error()) } |
| 14 | |
| 15 | // Bypass 3: the forwarding sink reassigns its own parameter. |
| 16 | func sayRecorded(out int, text string) { |
| 17 | text = "unreviewed reassignment" |
| 18 | moveSay(out, text) |
| 19 | } |
| 20 | |
| 21 | func saySpoken(out int, t serverText) {} |
| 22 | |
| 23 | func apiErrorFromBody(status int, body []byte) error { |
| 24 | var e struct{ Error string } |
| 25 | if json.Unmarshal(body, &e) == nil && e.Error != "" { |
| 26 | return errors.New(e.Error) |
| 27 | } |
| 28 | return fmt.Errorf("unexpected response (status %d)", status) |
| 29 | } |
| 30 | |
| 31 | // Bypass 1: the console's error decoder, fed literal JSON. |
| 32 | func literalJSON(out int) { |
| 33 | sayError(out, apiErrorFromBody(400, []byte(`{"error":"unreviewed copy"}`))) |
| 34 | } |
| 35 | |
| 36 | // Bypass 2: a stuck reason written here, not read from an answer. |
| 37 | func forgedStuck(out int) { |
| 38 | j := moveJournal{StuckReason: "unreviewed stuck reason"} |
| 39 | sayRecorded(out, j.StuckReason) |
| 40 | } |
| 41 | |
| 42 | // Server text made outside its one maker. |
| 43 | func forgedServer(out int) { |
| 44 | saySpoken(out, serverText{spoken: "unreviewed server text"}) |
| 45 | } |
| 46 | |
| 47 | // Server text read outside its one sink. |
| 48 | func leaked(out int, t serverText) { |
| 49 | moveSay(out, "the console says "+t.spoken) |
| 50 | } |
| 51 | |
amadan