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fix(score): validate PDF bridge byte arrays without coercion - #750

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seonghobae wants to merge 15 commits into
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fix/score-pdf-byte-validation-clean
Open

fix(score): validate PDF bridge byte arrays without coercion#750
seonghobae wants to merge 15 commits into
developfrom
fix/score-pdf-byte-validation-clean

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What

Harden readScorePdf so plain-array bridge responses are accepted only when every element is an integer in the inclusive 0..255 byte range. Validation uses an indexed, short-circuiting loop before Uint8Array.from, preventing implicit wrapping, truncation, and non-finite coercion.

The branch also retains the bounded root-lock update from Undici 7.28.0 to 7.29.0, which clears the current high-severity npm advisory set without adding a nested workspace lock.

Why

Uint8Array.from silently converts values such as -1, 256, 1.5, NaN, and Infinity. A malformed or compromised desktop bridge response must fail closed instead of being converted into different bytes. The indexed loop additionally avoids predicate callback overhead while preserving O(1) auxiliary validation memory and early termination.

Verification contract

  • valid boundary bytes 0 and 255 are preserved;
  • strings, negative integers, values above 255, fractional values, NaN, and infinity are rejected;
  • validation stops after the first invalid element;
  • bridge-unavailable behavior remains fail-closed;
  • desktop lint, strict typecheck, measured tests, production build, npm audit, repository CI, security gates, and independent current-head review remain mandatory before merge.

Scope

Exactly three files differ from develop:

  • apps/desktop/src/features/score/scoreStorage.ts
  • apps/desktop/src/features/score/scoreStorage.test.ts
  • package-lock.json

No workflow, permission, nested lockfile, proxy, runtime dependency, filesystem, network, or IPC authority is added.

Supersession

This clean review entry supersedes #729. Its exact clean head was retained, but the original pull request's workflows were left in GitHub's action_required state before any jobs could start. The replacement retriggers the same three-file tree through the normal current-head review and branch-protection path.

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Review details
⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: 2b03205e-3fe2-42b9-8201-fb0f62816140

📥 Commits

Reviewing files that changed from the base of the PR and between acdbea6 and 74bb1fe.

⛔ Files ignored due to path filters (1)
  • package-lock.json is excluded by !**/package-lock.json
📒 Files selected for processing (2)
  • apps/desktop/src/features/score/scoreStorage.test.ts
  • apps/desktop/src/features/score/scoreStorage.ts

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@opencode-agent @cwl-noema-review Please independently review exact current head 74bb1fe30dc9c12e41e8ec015a64d084213d7b64 after required checks complete. Verify the three-file scope, fail-closed integer byte validation, first-invalid-element short circuit, bounded Undici remediation, and absence of workflow, permission, nested-lock, filesystem, network, or IPC expansion. Approve only if no blocking finding remains.

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@opencode-agent @cwl-noema-review Please independently review exact current head 74bb1fe30dc9c12e41e8ec015a64d084213d7b64 after the remaining exact-head checks complete. Verify fail-closed integer byte validation before Uint8Array.from, 0/255 boundary preservation, rejection of negative/out-of-range/fractional/non-finite/non-number values, indexed short-circuit behavior, bridge-unavailable handling, the bounded Undici 7.29.0 root-lock change, absence of nested locks or added authority, and current-head measured coverage. Submit APPROVE only if no blocker remains.

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🧩 Analysis chain

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@seonghobae I reviewed exact head 74bb1fe30dc9c12e41e8ec015a64d084213d7b64.

The three-file scope is correct. No workflow, permission, nested-lockfile, filesystem, network, or IPC authority change exists.

readScorePdf now validates every plain-array element before Uint8Array.from. The indexed loop rejects non-number values, non-integers, negative values, values above 255, NaN, and infinity. The tests cover 0, 255, invalid values, first-invalid-element short circuit, and bridge-unavailable handling.

The root lockfile changes undici only from 7.28.0 to 7.29.0.

I cannot approve yet:

  • coverage-source-tree is still queued.
  • strix failed with a MEDIUM finding about frontend validation of projectId, songId, and scoreId. The direct IPC forwarding predates this PR, but the failed required check must be triaged and resolved or formally accepted, then rerun.

The successful build, test, audit, and other security checks are insufficient while these two conditions remain unresolved.

✅ Action performed

Review finished.

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@opencode-agent @cwl-noema-review Please independently review exact head 74bb1fe30dc9c12e41e8ec015a64d084213d7b64. Repository CI, security, SBOM, audit, Bandit, Semgrep, and release workflows for this head have succeeded. Do not reuse approval evidence from superseded PR #729 or another SHA.

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@opencode-agent @cwl-noema-review Please independently review exact current head 74bb1fe30dc9c12e41e8ec015a64d084213d7b64. Repository-local CI, build, release, SAST, Bandit, secret scan, security audit, security scan, and SBOM runs are successful; approve only if the same-head coverage and review contracts are satisfied.

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Pull request overview

OpenCode cannot approve yet because required coverage evidence did not pass.

Review outcome

1. HIGH .github/workflows/opencode-review.yml:1 - Coverage evidence did not prove required test/docstring evidence

  • Problem: The required coverage-evidence job result was failure, so OpenCode cannot establish approval sufficiency for this head.

  • Root cause: Automated approval is only valid when the same-head coverage-evidence job proves supported repository test suites passed and configured docstring gates passed or were advisory, or reports not applicable because no supported source files or package manifests exist. Missing, failed, skipped, unavailable, or unsupported-tooling test evidence is a blocker.

  • Fix: Install or configure the repository test/docstring evidence tooling when source files or package manifests exist, rerun the current-head coverage-evidence job, and approve only after it reports success with required evidence or explicit no-source not-applicable evidence.

  • Regression test: Keep the approval branch checking needs.coverage-evidence.result == success before posting APPROVE, and publish REQUEST_CHANGES when coverage-evidence blocker states such as cancelled, skipped, failed, unsupported-tooling, or below-100 evidence are present.

  • Result: REQUEST_CHANGES

  • Reason: coverage-evidence result was failure, so required test/docstring evidence was not proven for current head 74bb1fe30dc9c12e41e8ec015a64d084213d7b64.

  • Head SHA: 74bb1fe30dc9c12e41e8ec015a64d084213d7b64

  • Workflow run: 30981152078

  • Workflow attempt: 1

Coverage evidence

Coverage evidence job did not run or did not publish coverage evidence.

Changed-File Evidence Map

flowchart LR
  PR["PR changed files"] --> Evidence["OpenCode bounded evidence"]
  Evidence --> S1["Changed file (3 files)"]
  S1 --> I1["repository behavior"]
  I1 --> R1["Review risk: Changed file (3 files)"]
  R1 --> V1["required checks"]
Loading

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OpenCode Review Overview

  • Head SHA: 74bb1fe30dc9c12e41e8ec015a64d084213d7b64
  • Workflow run: 30981152078
  • Workflow attempt: 1
  • Gate result: REQUEST_CHANGES (approval step)

Pull request overview

OpenCode cannot approve yet because required coverage evidence did not pass.

Review outcome

1. HIGH .github/workflows/opencode-review.yml:1 - Coverage evidence did not prove required test/docstring evidence

  • Problem: The required coverage-evidence job result was failure, so OpenCode cannot establish approval sufficiency for this head.

  • Root cause: Automated approval is only valid when the same-head coverage-evidence job proves supported repository test suites passed and configured docstring gates passed or were advisory, or reports not applicable because no supported source files or package manifests exist. Missing, failed, skipped, unavailable, or unsupported-tooling test evidence is a blocker.

  • Fix: Install or configure the repository test/docstring evidence tooling when source files or package manifests exist, rerun the current-head coverage-evidence job, and approve only after it reports success with required evidence or explicit no-source not-applicable evidence.

  • Regression test: Keep the approval branch checking needs.coverage-evidence.result == success before posting APPROVE, and publish REQUEST_CHANGES when coverage-evidence blocker states such as cancelled, skipped, failed, unsupported-tooling, or below-100 evidence are present.

  • Result: REQUEST_CHANGES

  • Reason: coverage-evidence result was failure, so required test/docstring evidence was not proven for current head 74bb1fe30dc9c12e41e8ec015a64d084213d7b64.

  • Head SHA: 74bb1fe30dc9c12e41e8ec015a64d084213d7b64

  • Workflow run: 30981152078

  • Workflow attempt: 1

Coverage evidence

Coverage evidence job did not run or did not publish coverage evidence.

Changed-File Evidence Map

flowchart LR
  PR["PR changed files"] --> Evidence["OpenCode bounded evidence"]
  Evidence --> S1["Changed file (3 files)"]
  S1 --> I1["repository behavior"]
  I1 --> R1["Review risk: Changed file (3 files)"]
  R1 --> V1["required checks"]
Loading

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opencode-agent Bot disabled auto-merge August 5, 2026 09:20

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@coderabbitai review

Please review exact current head 74bb1fe30dc9c12e41e8ec015a64d084213d7b64. Repository CI, npm audit, release, SBOM, SAST, secret, Bandit, and security workflows all succeeded on this head. Focus on fail-closed integer byte validation, first-invalid-element short circuiting, bridge-unavailable behavior, and the bounded Undici 7.29.0 root-lock change.

@opencode-agent Please rerun review for this exact head after the central npm-workspace coverage materializer is available; do not reuse the failed predecessor coverage-evidence result.

@cwl-noema-review Please independently review this exact head. Merge remains subject to protected current-head checks and a qualifying non-author approval.

@seonghobae
seonghobae enabled auto-merge (squash) August 5, 2026 12:02
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🧩 Analysis chain

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@seonghobae I reviewed exact head 74bb1fe30dc9c12e41e8ec015a64d084213d7b64.

I found no blocking defect in the three changed files.

  • The scope is limited to the two score-storage files and the root package-lock.json.
  • readScorePdf validates each plain-array value before Uint8Array.from.
  • The indexed loop rejects non-integers, negative values, values above 255, NaN, infinity, and non-number values.
  • The loop stops at the first invalid value.
  • The tests preserve 0 and 255, cover all specified rejected values, verify short-circuiting, and retain bridge-unavailable failure behavior.
  • Exact-head CI ran scoreStorage.test.ts: 9 tests passed.
  • Exact-head desktop coverage reports scoreStorage.ts at 100% statements, branches, functions, and lines.
  • The lockfile changes only root undici, from 7.28.0 to 7.29.0.
  • No nested lockfile or workflow, permission, filesystem, network, or IPC-authority expansion exists.

I cannot approve while the exact-head strix check remains failed. Its available annotation reports only “Process completed with exit code 1.” Resolve, formally accept, or rerun that check under repository policy before approval.

⚠️ Action not completed

Review rate limited.

Note: CodeRabbit is an incremental review system and does not re-review already reviewed commits. This command is applicable only when automatic reviews are paused.

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opencode-agent Bot disabled auto-merge August 5, 2026 13:24

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@opencode-agent @cwl-noema-review

Please perform a fresh exact-head review of 74bb1fe30dc9c12e41e8ec015a64d084213d7b64. Every repository-owned exact-head workflow is successful, including CI, measured tests, production build, security-audit/npm audit, Security Scan, Semgrep, Bandit, secret scan, SBOM, release, and build-baseline; there are zero inline review threads. Verify strict integer 0..255 byte-domain validation, early exit after the first invalid element, preservation of valid boundary bytes, bridge-unavailable fail-closed behavior, and the bounded Undici 7.29.0 root-lock security update. The prior coverage-evidence review was an infrastructure result, not a product-source finding; do not reuse it without re-evaluating the current central coverage path.

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@opencode-agent @cwl-noema-review Please independently re-review exact current head 74bb1fe30dc9c12e41e8ec015a64d084213d7b64. All repository-local CI, build, release, npm/Python/Rust security audit, Bandit, Semgrep, Security Scan, secret scan, and SBOM workflows succeeded on this SHA; there are no unresolved inline threads. The remaining central coverage failure is the npm-workspace lock-owner prerequisite tracked in ContextualWisdomLab/.github#748.

@seonghobae
seonghobae enabled auto-merge (squash) August 6, 2026 08:59
@opencode-agent
opencode-agent Bot disabled auto-merge August 6, 2026 10:02
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