API integration for macvendors.com API

mac_vendors.dart

///
/// Wrapper around Macvendors API
/// https://macvendors.com/api
///

import 'package:http/http.dart' as http;

import "zmac_address.dart";

const BASE_URL = "https://api.macvendors.com";

Future<String> lookupMacAddress(String macaddress) async {
  print("macvendors :: input $macaddress");

  final normalized = normalizeMacAddress(macaddress);
  // print("macvendors :: normalized $normalized");

  if (normalized == null) {
    return "";
  }

  // take only the first 3 group
  // to save on api call
  final prefix = normalized.substring(0, "00:11:22".length);
  // print("macvendors :: prefix $prefix");

  final url = "$BASE_URL/$prefix";
  // print("macvendors :: url $url");

  final response = await http.get(url);
  // print("macvendors :: response $response");

  final vendor = response.body;
  print("macvendors :: vendor $vendor");

  return vendor;
}

void main () {
  print(lookupMacAddress("F0:18:98:41:5A:52"));
}

zmac_address.dart

final d = "([0-9A-F]{2})";
final s = "[:\.-]?";

final RegExp re = RegExp(
  "$d$s$d$s$d$s$d$s$d$s$d",
  multiLine: false,
);

/// MAC addresses will come in the following shape or form:
/// 00-11-22-33-44-55
/// 00:11:22:33:44:55
/// 00.11.22.33.44.55
/// 001122334455
/// 0011.2233.4455
String normalizeMacAddress(String macaddress) {
  final matches = re.allMatches(macaddress);
  
  if (matches.length < 1) {
    return null;
  }
  
  final match = matches.first;
  return "${match.group(1)}:${match.group(2)}:${match.group(3)}:${match.group(4)}:${match.group(5)}:${match.group(6)}";
}

// void test(address) {
//   final result = normalizeMacAddress(address);
//   print("$address => $result");
// }

// void main() {
//   test("00-11-22-33-44-55");
//   test("00:11:22:33:44:55");
//   test("00.11.22.33.44.55");
//   test("001122334455");
//   test("0011.2233.4455");
// }