name: File Whitelist Security Check
# Enhanced security checks with comprehensive file type detection

on:
  pull_request:
    branches: [ main ]
  workflow_call:  # Called by ci-gate.yml for release pipeline
    inputs:
      check-all-files:
        description: 'Check ALL tracked files (not just changed files)'
        required: false
        type: boolean
        default: true
  workflow_dispatch:

# No concurrency group — intentionally omitted.
# This workflow triggers on both pull_request and workflow_call (from
# ci-gate.yml / release-gate.yml). A shared concurrency key would cause
# direct PR runs and workflow_call runs to cancel each other mid-flight.
# See #3554 (reverted in #3599) for context.

permissions:
  contents: read

jobs:
  whitelist-check:
    runs-on: ubuntu-latest

    steps:
    - name: Harden the runner (Audit all outbound calls)
      uses: step-security/harden-runner@9af89fc71515a100421586dfdb3dc9c984fbf411 # v2.19.4
      with:
        egress-policy: audit

    - name: Checkout code
      uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
      with:
        persist-credentials: false
        fetch-depth: 0

    - name: Security checks for files
      env:
        GITHUB_EVENT_NAME: ${{ github.event_name }}
        GITHUB_BASE_REF: ${{ github.base_ref }}
        CHECK_ALL_FILES: ${{ inputs.check-all-files }}
      run: |
        .github/scripts/file-whitelist-check.sh