dependency-vulnerability-scan.yml

name: Dependency Vulnerability Scan

on:
  pull_request:
    branches: [ main ]
  push:
    branches: [ main ]
  schedule:
    - cron: '17 3 * * *'
  workflow_dispatch:

permissions:
  contents: read
  security-events: write
  pull-requests: read

env:
  CARGO_TERM_COLOR: always
  RUST_BACKTRACE: 1

concurrency:
  group: dependency-vulnerability-scan-${{ github.ref }}
  cancel-in-progress: true

jobs:
  dependency-review:
    name: Pull request dependency review
    if: github.event_name == 'pull_request'
    runs-on: ubuntu-latest
    timeout-minutes: 10
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
      - name: Check Dependency graph availability
        id: graph-check
        run: |
          set +e
          code=$(curl -s -o /dev/null -w '%{http_code}' \
            -H "Authorization: Bearer ${{ github.token }}" \
            -H "Accept: application/vnd.github+json" \
            "https://api.github.com/repos/${{ github.repository }}/dependency-graph/compare/${{ github.event.pull_request.base.sha }}...${{ github.event.pull_request.head.sha }}")
          echo "http_code=$code" >> "$GITHUB_OUTPUT"
      - name: Block vulnerable dependency changes
        if: >
          steps.graph-check.outputs.http_code != '403' &&
          steps.graph-check.outputs.http_code != '404'
        uses: actions/dependency-review-action@v4
        with:
          fail-on-severity: moderate
          deny-licenses: GPL-2.0, GPL-3.0, AGPL-1.0, AGPL-3.0
          comment-summary-in-pr: always
      - name: Skip dependency review (Dependency graph disabled)
        if: >
          steps.graph-check.outputs.http_code == '403' ||
          steps.graph-check.outputs.http_code == '404'
        run: |
          echo "::warning::Dependency graph is not enabled on this repository; skipping dependency review. Enable it in Settings -> Code security and analysis -> Dependency graph."

  rust-audit:
    name: Rust cargo audit
    runs-on: ubuntu-latest
    timeout-minutes: 15
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
      - name: Install Rust toolchain
        uses: dtolnay/rust-toolchain@stable
      - name: Cache Rust dependencies
        uses: Swatinem/rust-cache@v2
      - name: Install cargo-audit
        uses: taiki-e/install-action@cargo-audit
      - name: Audit root workspace dependencies
        run: cargo audit --deny warnings --file Cargo.lock
      - name: Audit contracts workspace dependencies
        run: cargo audit --deny warnings --file contracts/Cargo.lock

  npm-audit:
    name: Node npm audit
    runs-on: ubuntu-latest
    timeout-minutes: 15
    strategy:
      fail-fast: false
      matrix:
        project:
          - meter-simulator
          - usage-dashboard
    defaults:
      run:
        working-directory: ${{ matrix.project }}
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '20'
          cache: npm
          cache-dependency-path: ${{ matrix.project }}/package-lock.json
      - name: Install locked dependencies without running package scripts
        run: npm ci --ignore-scripts
      - name: Audit production dependency tree
        run: npm audit --audit-level=moderate --omit=dev
      - name: Audit full dependency tree
        run: npm audit --audit-level=high

  vulnerability-summary:
    name: Vulnerability scan summary
    runs-on: ubuntu-latest
    needs:
      - rust-audit
      - npm-audit
    if: always()
    timeout-minutes: 5
    steps:
      - name: Publish pipeline summary
        run: |
          cat <<'SUMMARY' >> "$GITHUB_STEP_SUMMARY"
          ## Dependency vulnerability scan

          | Scanner | Scope | Blocking threshold |
          | --- | --- | --- |
          | Dependency Review | Pull request manifest and lockfile changes | Moderate |
          | cargo-audit | Root and contracts Cargo.lock files | RustSec warnings |
          | npm audit | meter-simulator and usage-dashboard | Moderate production / high full tree |

          Failed jobs block the pull request until the dependency is upgraded,
          replaced, or an explicitly documented security exception is approved.
          SUMMARY
      - name: Enforce successful scanners
        run: |
          if [ "${{ needs.rust-audit.result }}" != "success" ] || [ "${{ needs.npm-audit.result }}" != "success" ]; then
            echo "One or more dependency vulnerability scanners failed. Review job logs before merging."
            exit 1
          fi