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pdfcraft/crates
Michael Higgins 3be126f9bb fix(engine, automation): Action Wizard and doc_batch honour JavaScript being off (#5080)
## What this changes

Batch processing now keeps the caller's "Enable JavaScript" setting. Before, each file was processed in a fresh `Session::new()`, where JavaScript is on, so open-time XFA scripts and "Run a JavaScript" steps ran and their results were saved.

- `actions::run_on` and `ocr::recognize_file` take a `javascript: bool` and call `set_javascript` before opening the file. In `recognize_file` the open now goes through a small private helper, `ocr::open_file`, so the open path can be tested without the recognition models.
- `doc_batch`'s `Recipe` carries the setting into its per-file session and its OCR step.
- Callers pass their own `session.javascript()`: the desktop Action Wizard, desktop multi-file OCR, `action_run`, `ocr_recognize_files` and `doc_batch`.

Also relevant to #5054: an administrator's `DisableJavaScript` policy now reaches these sessions.

Fixes #5080

## How you verified it

Regression tests, adopted from the reviewers' patches, plus one for the OCR open path:

- `crates/engine/src/tests.rs::an_action_runs_a_javascript_step_only_when_javascript_is_on` (croquete1): a "Run a JavaScript" step writes its field with JavaScript on, and `run_on(.., false, ..)` refuses it instead of saving a scripted value. croquete1 reported it failing with the `set_javascript` call in `run_on` removed.
- `crates/automation/tests/it/automation.rs::file_processing_keeps_javascript_off_for_xfa_open_scripts` (Harrison-Booth): with `js_enabled` off, an XFA initialize script that sets `qty` to 42 doesn't reach the output of `action_run`, `doc_batch` or (only when its models are installed) `ocr_recognize_files`. The contributor reported that each propagation removed on its own makes it fail.
- `crates/engine/src/ocr.rs::tests::files_open_for_recognition_with_the_callers_javascript_preference`: opens the scripted XFA fixture through `recognize_file`'s open path with JavaScript off (the initialize script leaves `qty` empty) and on (it sets `qty` to 2). This covers the OCR propagation in runs without the OCR models.

What was run locally, and what wasn't:

- `cargo fmt --check` and `cargo clippy --all-targets -- -D warnings` were clean on `pdfcraft-engine`, `pdfcraft-automation` and `pdfcraft-ui-egui` at the earlier heads. On the latest commit only `cargo fmt --all` was run; clippy was not re-run.
- No tests were run locally, including the new `ocr::tests` one: test builds time out on this machine, and the run was stopped before it compiled. The new test has not been seen failing either. If `set_javascript` is removed, the session keeps its JavaScript-on default, so the off case would read `qty` = 2 like the on case, and the first assertion would fail. Seeing that happen is still owed.
- The tests are left to the maintainers' CI. No CI result is claimed for this PR.

- [x] `cargo fmt --check`
- [ ] clippy with `-D warnings` on the crates I changed (clean at the earlier heads; not re-run on the latest commit)
- [ ] tests pass on the crates I changed (not run locally)
- [x] `cargo xtask layers` and `cargo xtask assets`: N/A. No crate boundaries, dependencies or assets change.

## Never-crash

- [x] No new `unwrap`/`expect`/`panic!`/`unreachable!`/`todo!` outside tests. The new non-test code only passes a `bool` and propagates errors with `?`.
- [x] No indexing or slicing with input-derived positions, no new arithmetic, allocations or recursion.
- [x] No `unsafe`
- [x] Any crash this fixes has a regression test: N/A, this fixes no crash.

## Provenance

- [x] No asset from an Adobe product, and no Adobe icon recreated, traced or imitated (no assets change)
- [x] No font files committed here
- [x] No GPL/AGPL code copied in
- [x] Behaviour comes from the project's own JavaScript preference (`Session::set_javascript`) and issue #5080, not from another implementation's source
- [x] Every new asset has an `ATTRIBUTION.toml` entry: N/A, no new assets

## Security

- [x] `--root` confinement still holds: `action_run` and `ocr_recognize_files` still resolve every input and output through `resolve`, and `doc_batch`'s path handling is unchanged. No new paths are read or written.
- [x] MCP and the UI control channel are untouched.
- [x] No new outbound network access.
- This narrows script execution: with JavaScript off, the per-file sessions of the Action Wizard, multi-file OCR, `action_run`, `ocr_recognize_files` and `doc_batch` no longer run document or step scripts.

## Parity and reach

- [ ] `parity/acrobat-features.toml` not updated: this is a bug fix, and the `misc.batch-processing` entry's status (`partial`) and notes stay true.
- [x] Reachable headlessly: `action_run`, `ocr_recognize_files` and `doc_batch` take the setting from the session, which `js_enabled` sets.
- [x] Docs: N/A. No documented behaviour changes (`docs/cli-batch.md` doesn't describe JavaScript handling).

## Anything a reviewer should look at first

- The existing `run_on` tests pass `true` to keep their behaviour; the tests above cover the JavaScript-off path.
- `recognize_file` now has 7 parameters, the `too_many_arguments` limit.
- The OCR branch of the end-to-end test runs only where the OCR models are installed. The engine unit test covers the OCR open path without them. Provisioning the models in CI is left as a separate decision.


<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
<!-- coderabbit-ai-generated:v1 -->

## Summary by CodeRabbit

* **Bug Fixes**
  * File actions, batch processing, and OCR now honor the JavaScript setting from your current session for each file.
  * When JavaScript is disabled, document scripts—including scripts that run when a document opens—won’t execute during processing. When enabled, JavaScript steps can run as expected.
  * This behavior applies across automated and in-app workflows. Per-file results and OCR output handling remain unchanged.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
2026-11-11 07:32:14 +01:00
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2026-11-09 18:32:42 +07:00
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