update

bin/config.dart

@@ -5,6 +5,8 @@ import 'dart:io';
 class HostAndPort {
   String host;
   int port;
+
+  HostAndPort({this.host, this.port});
 }
 
 class ManageConfig {
@@ -24,9 +26,29 @@ class ProxyConfig {
 
 ProxyConfig parseProxyConfig(String config) {
   final jsonConfig = json.decode(config);
+
+  final managementConfig = jsonConfig['managementConfig'];
+  print(managementConfig);
+
+  // print(jsonConfig);
+  return null;
 }
 
-Future<ProxyConfig> loadProxyConfig(String configFile/*, {List<String> files} ?? */) async {
+HostAndPort parseHostAndPort(String hnp) {
+  final indexOfC = hnp.indexOf(":");
+  if (indexOfC < 0) {
+    throw 'Missing port: ' + hnp;
+  }
+  var host = hnp.substring(0, indexOfC);
+  final port = int.parse(hnp.substring(indexOfC + 1));
+  if (host.isEmpty) {
+    host = "0.0.0.0";
+  }
+  return HostAndPort(host: host, port: port);
+}
+
+Future<ProxyConfig> loadProxyConfig(String configFile
+    /*, {List<String> files} ?? */) async {
   final configFn = File(configFile);
   if (!await configFn.exists()) {
     throw 'Config file not found: ' + configFile;