#!/usr/bin/env bash
# Security test: OMNL-2 (office 2) user must not access other offices' data or achieve
# path traversal / command injection. See docs/04-configuration/mifos-omnl-central-bank/OMNL_OFFICE_2_ACCESS_SECURITY_TEST.md
# Set STRICT_OFFICE_LIST=1 to fail when GET /offices returns other offices or GET /offices/20 returns 200.
set -euo pipefail
REPO_ROOT="${REPO_ROOT:-$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)}"
if [ -f "${REPO_ROOT}/omnl-fineract/.env" ]; then set +u; source "${REPO_ROOT}/omnl-fineract/.env" 2>/dev/null || true; set -u; fi

BASE_URL="${OMNL_FINERACT_BASE_URL:-}"
TENANT="${OMNL_FINERACT_TENANT:-omnl}"
# Office-2 user (do NOT use app.omnl admin)
OFFICE2_USER="${OMNL_OFFICE2_TEST_USER:-shamrayan.admin}"
OFFICE2_PASS="${OMNL_OFFICE2_TEST_PASSWORD:-${OMNL_SHAMRAYAN_ADMIN_PASSWORD:-}}"
STRICT="${STRICT_OFFICE_LIST:-0}"

FAILED=0

if [ -z "$BASE_URL" ] || [ -z "$OFFICE2_PASS" ]; then
  echo "Set OMNL_FINERACT_BASE_URL and either OMNL_OFFICE2_TEST_PASSWORD or OMNL_SHAMRAYAN_ADMIN_PASSWORD (office-2 user only)." >&2
  exit 2
fi

CURL_OFFICE2=(-s -S -w "\n%{http_code}" -H "Fineract-Platform-TenantId: ${TENANT}" -H "Content-Type: application/json" -u "${OFFICE2_USER}:${OFFICE2_PASS}")

echo "=== OMNL-2 access security test ==="
echo "Base URL: $BASE_URL"
echo "User: $OFFICE2_USER"
echo ""

# --- 1. Data isolation: GET /offices; office 2 must be present ---
echo "[1] Data isolation: GET /offices (office 2 must be visible)..."
OFFICES_RESP=$(curl "${CURL_OFFICE2[@]}" "${BASE_URL}/offices" 2>/dev/null)
OFFICES_BODY=$(echo "$OFFICES_RESP" | sed '$d')
OFFICES_CODE=$(echo "$OFFICES_RESP" | tail -n1)
if [ "$OFFICES_CODE" = "401" ]; then
  echo "    ERROR: Invalid or missing credentials (HTTP 401). Set office-2 user and password." >&2
  exit 2
fi
if [ "$OFFICES_CODE" != "200" ]; then
  echo "    FAIL: GET /offices returned HTTP $OFFICES_CODE" >&2
  FAILED=1
else
  OFFICE_IDS=$(echo "$OFFICES_BODY" | jq -r '.[].id // empty' 2>/dev/null || true)
  HAS_OFFICE2=""
  for id in $OFFICE_IDS; do
    [ "$id" = "2" ] && HAS_OFFICE2=1
  done
  if [ -z "$HAS_OFFICE2" ]; then
    echo "    FAIL: Office 2 not in GET /offices response" >&2
    FAILED=1
  else
    BAD_IDS=""
    for id in $OFFICE_IDS; do
      if [ "$id" != "1" ] && [ "$id" != "2" ]; then
        BAD_IDS="${BAD_IDS} ${id}"
      fi
    done
    if [ -n "$BAD_IDS" ] && [ "$STRICT" = "1" ]; then
      echo "    FAIL: Strict mode — office-2 user sees other offices:${BAD_IDS}" >&2
      FAILED=1
    elif [ -n "$BAD_IDS" ]; then
      echo "    OK: Office 2 visible (other offices also listed:${BAD_IDS}; set STRICT_OFFICE_LIST=1 to fail)"
    else
      echo "    OK: Only offices 1 and 2 visible"
    fi
  fi
fi

# --- 2. Data isolation: GET /offices/20 (strict: must not return 200 with office 20) ---
echo "[2] Data isolation: GET /offices/20..."
OFF20_RESP=$(curl "${CURL_OFFICE2[@]}" "${BASE_URL}/offices/20" 2>/dev/null)
OFF20_CODE=$(echo "$OFF20_RESP" | tail -n1)
if [ "$OFF20_CODE" = "200" ]; then
  OFF20_BODY=$(echo "$OFF20_RESP" | sed '$d')
  if echo "$OFF20_BODY" | jq -e '.id == 20' >/dev/null 2>&1; then
    if [ "$STRICT" = "1" ]; then
      echo "    FAIL: Strict mode — office-2 user can read office 20 by ID" >&2
      FAILED=1
    else
      echo "    OK: 200 with office 20 (set STRICT_OFFICE_LIST=1 to fail)"
    fi
  else
    echo "    OK: 200 but no office 20 data"
  fi
else
  echo "    OK: HTTP $OFF20_CODE (access denied or not found)"
fi

# --- 2b. Data isolation: GET /clients?officeId=20 must not return other offices' clients ---
echo "[3] Data isolation: GET /clients?officeId=20 (must be 403 or empty)..."
CLIENTS_RESP=$(curl "${CURL_OFFICE2[@]}" "${BASE_URL}/clients?officeId=20" 2>/dev/null)
CLIENTS_CODE=$(echo "$CLIENTS_RESP" | tail -n1)
CLIENTS_BODY=$(echo "$CLIENTS_RESP" | sed '$d')
if [ "$CLIENTS_CODE" = "200" ]; then
  # pageItems or top-level array
  COUNT=$(echo "$CLIENTS_BODY" | jq -r 'if .pageItems then (.pageItems | length) else (if type == "array" then length else 0 end) end' 2>/dev/null || echo "0")
  case "${COUNT:-0}" in
    ''|null) COUNT=0 ;;
  esac
  if [ "${COUNT:-0}" -gt 0 ] 2>/dev/null; then
    echo "    FAIL: Office-2 user can list clients for office 20 (count=$COUNT)" >&2
    FAILED=1
  else
    echo "    OK: No clients for office 20 returned"
  fi
else
  echo "    OK: HTTP $CLIENTS_CODE (access denied or no data)"
fi

# --- 4. Command injection: response must not contain actual file/command output ---
echo "[4] Command injection: GET response (must not contain file/command output)..."
INJECT_RESP=$(curl "${CURL_OFFICE2[@]}" "${BASE_URL}/offices?locale=en" 2>/dev/null)
INJECT_BODY=$(echo "$INJECT_RESP" | sed '$d')
if echo "$INJECT_BODY" | grep -qE 'root:.*:0:0:|uid=[0-9]+\(.*\)\s+gid='; then
  echo "    FAIL: Response may contain command output or file content" >&2
  FAILED=1
else
  echo "    OK: No command/file output in response"
fi

# --- 5. Path traversal: must not return server file content ---
echo "[5] Path traversal: GET with path-like param (must not return file content)..."
TRAVERSE_RESP=$(curl "${CURL_OFFICE2[@]}" -G --data-urlencode "dateFormat=../../../etc/passwd" "${BASE_URL}/offices" 2>/dev/null)
TRAVERSE_BODY=$(echo "$TRAVERSE_RESP" | sed '$d')
if echo "$TRAVERSE_BODY" | grep -qE 'root:.*:0:0:'; then
  echo "    FAIL: Response may contain file content (path traversal)" >&2
  FAILED=1
else
  echo "    OK: No file content in response"
fi

echo ""
if [ $FAILED -eq 0 ]; then
  echo "All OMNL-2 access security checks passed."
  exit 0
else
  echo "One or more checks FAILED. Do not treat office-2 access as safe until resolved." >&2
  exit 1
fi