name: security-scan

# Max-heuristic, reliable push safeguard. Direct gitleaks FULL scan (entropy +
# 150+ rules, respects .gitleaks.toml) — no partial/range scan, so force-pushes
# and history rewrites don't break it. Plus key/.env/weight-file and private-IP
# checks (the IP check skips docs/tests/examples to avoid flagging sample IPs).

on:
  push:
  pull_request:

permissions:
  contents: read

jobs:
  secret-scan:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
      - name: gitleaks full scan (entropy + curated rules)
        run: |
          curl -sSfL https://github.com/gitleaks/gitleaks/releases/download/v8.24.3/gitleaks_8.24.3_linux_x64.tar.gz -o /tmp/gl.tgz
          tar -xzf /tmp/gl.tgz -C /tmp gitleaks
          /tmp/gitleaks detect --source . --no-banner --redact --exit-code 1
      - name: key / .env / weight files
        if: always()
        run: |
          HITS=$(find . -path ./.git -prune -o -type f \( -name '*.key' -o -name '*.pem' -o -name '.env' -o -name '*.safetensors' -o -name '*.gguf' \) -print | grep -v '.env.example' || true)
          if [ -n "$HITS" ]; then echo "::error::key/.env/weight file committed:"; echo "$HITS"; exit 1; fi
          echo "OK: no key/.env/weight files."
      - name: private IPs in code/config
        if: always()
        run: |
          IP='(^|[^0-9.])(10\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}|192\.168\.[0-9]{1,3}\.[0-9]{1,3}|172\.(1[6-9]|2[0-9]|3[01])\.[0-9]{1,3}\.[0-9]{1,3})'
          if grep -rIEn "$IP" --include='*.py' --include='*.ts' --include='*.js' --include='*.sh' --include='*.yaml' --include='*.yml' --exclude-dir=.git --exclude-dir=.github --exclude-dir=docs --exclude-dir=tests --exclude-dir=test --exclude-dir=__tests__ --exclude-dir=examples --exclude-dir=fixtures . ; then
            echo "::error::private (RFC1918) IP in code/config — use 192.0.2.0/24 in examples."; exit 1
          fi
          echo "OK: no private IPs in code/config."
