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* feat(#1724): complete install write-confinement (copyWithPathReplacement, installCodexConfig) ADR-1239 Phase B (parent #1679). PR #1706 (2a) confined the layout-driven plan path and _copyStaged's inline guard; this completes the destSubpath write-confinement acceptance criterion for the two remaining write sites and canonicalizes _copyStaged. - copyWithPathReplacement: new required confinementRoot param; a fail-closed gate (assertDestWithinConfigHome + hasExistingSymlinkBetween) runs BEFORE the rmSync/mkdirSync; root threaded through recursion + all 4 call sites (stageRoot for pristine staging, targetDir for the 3 install sites); writes go through the validated absolute path. Exported for behavioral testing. - installCodexConfig: confines config.toml, agents/, and per-agent agents/<name>.toml (name from agent frontmatter) via the canonical gate + symlink-escape guard (parity with the other two functions). - _copyStaged: fail-closed when configDir omitted (all callers pass it); delegates strict-subpath to the canonical gate, keeps its symlink guard, writes through the validated absolute path. Reuses the existing assertDestWithinConfigHome (handles absolute dests via path.resolve) and hasExistingSymlinkBetween — no new module. Behavioral regression tests (escape/dest==root/fail-closed/symlink/name-injection), red-first proven; cross-platform symlink tests use t.skip not bare return. Closes #1724 Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> * chore(#1724): backfill changeset PR number (#1725) Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
485 B
485 B
type, pr
| type | pr |
|---|---|
| Security | 1725 |
Installer writes are now confined to the declared config home — the workflow/skill emit path (copyWithPathReplacement) and the Codex config writer (installCodexConfig) now reject any destination that escapes the install root: crafted or absolute paths, path-separator agent names, and pre-existing symlinks are refused before any delete or write. Fail-closed: an install write with no declared root is rejected rather than written unconfined.