feat: support proxy (#284)

ui/flutter/lib/api/model/downloader_config.dart

@@ -8,6 +8,7 @@ class DownloaderConfig {
   int maxRunning = 0;
   ProtocolConfig protocolConfig = ProtocolConfig();
   ExtraConfig extra = ExtraConfig();
+  ProxyConfig proxy = ProxyConfig();
 
   DownloaderConfig();
 
@@ -66,6 +67,22 @@ class ExtraConfig {
   Map<String, dynamic> toJson() => _$ExtraConfigToJson(this);
 }
 
+@JsonSerializable()
+class ProxyConfig {
+  bool enable = false;
+  String scheme = '';
+  String host = '';
+  String usr = '';
+  String pwd = '';
+
+  ProxyConfig();
+
+  factory ProxyConfig.fromJson(Map<String, dynamic> json) =>
+      _$ProxyConfigFromJson(json);
+
+  Map<String, dynamic> toJson() => _$ProxyConfigToJson(this);
+}
+
 @JsonSerializable()
 class ExtraConfigBt {
   List<String> trackerSubscribeUrls = [];

ui/flutter/lib/api/model/downloader_config.g.dart

@@ -12,7 +12,8 @@ DownloaderConfig _$DownloaderConfigFromJson(Map<String, dynamic> json) =>
       ..maxRunning = json['maxRunning'] as int
       ..protocolConfig = ProtocolConfig.fromJson(
           json['protocolConfig'] as Map<String, dynamic>?)
-      ..extra = ExtraConfig.fromJson(json['extra'] as Map<String, dynamic>?);
+      ..extra = ExtraConfig.fromJson(json['extra'] as Map<String, dynamic>?)
+      ..proxy = ProxyConfig.fromJson(json['proxy'] as Map<String, dynamic>);
 
 Map<String, dynamic> _$DownloaderConfigToJson(DownloaderConfig instance) =>
     <String, dynamic>{
@@ -20,6 +21,7 @@ Map<String, dynamic> _$DownloaderConfigToJson(DownloaderConfig instance) =>
       'maxRunning': instance.maxRunning,
       'protocolConfig': instance.protocolConfig.toJson(),
       'extra': instance.extra.toJson(),
+      'proxy': instance.proxy.toJson(),
     };
 
 ProtocolConfig _$ProtocolConfigFromJson(Map<String, dynamic> json) =>
@@ -65,6 +67,22 @@ Map<String, dynamic> _$ExtraConfigToJson(ExtraConfig instance) =>
       'bt': instance.bt.toJson(),
     };
 
+ProxyConfig _$ProxyConfigFromJson(Map<String, dynamic> json) => ProxyConfig()
+  ..enable = json['enable'] as bool
+  ..scheme = json['scheme'] as String
+  ..host = json['host'] as String
+  ..usr = json['usr'] as String
+  ..pwd = json['pwd'] as String;
+
+Map<String, dynamic> _$ProxyConfigToJson(ProxyConfig instance) =>
+    <String, dynamic>{
+      'enable': instance.enable,
+      'scheme': instance.scheme,
+      'host': instance.host,
+      'usr': instance.usr,
+      'pwd': instance.pwd,
+    };
+
 ExtraConfigBt _$ExtraConfigBtFromJson(Map<String, dynamic> json) =>
     ExtraConfigBt()
       ..trackerSubscribeUrls = (json['trackerSubscribeUrls'] as List<dynamic>)