feat: 新增 Hosts 写入功能，通过预设的干净 DNS 获取ip 并 写入 hosts 文件

lib/common/helper/system_helper.dart

@@ -257,4 +257,10 @@ foreach ($adapter in $adapterMemory) {
     await Process.run(
         SystemHelper.powershellPath, ["explorer.exe", "/select,\"$path\""]);
   }
+
+  static String getHostsFilePath() {
+    final envVars = Platform.environment;
+    final systemRoot = envVars["SYSTEMROOT"];
+    return "$systemRoot\\System32\\drivers\\etc\\hosts";
+  }
 }

lib/common/io/rs_http.dart

@@ -51,13 +51,20 @@ class RSHttp {
   }
 
   static Future<RustHttpResponse> head(String url,
-      {Map<String, String>? headers}) async {
+      {Map<String, String>? headers, String? withIpAddress}) async {
     final r = await rust_http.fetch(
-        method: MyMethod.head, url: url, headers: headers);
+        method: MyMethod.head,
+        url: url,
+        headers: headers,
+        withIpAddress: withIpAddress);
     return r;
   }
 
   static Future<List<String>> dnsLookupTxt(String host) async {
     return await rust_http.dnsLookupTxt(host: host);
   }
+
+  static Future<List<String>> dnsLookupIps(String host) async {
+    return await rust_http.dnsLookupIps(host: host);
+  }
 }

lib/common/utils/async.dart

@@ -8,7 +8,7 @@ extension AsyncError on Future {
       return await this;
     } catch (e) {
       dPrint("unwrap error:$e");
-      if (context != null) {
+      if (context != null && context.mounted) {
         showToast(context, "出现错误: $e");
       }
       return null;

lib/ui/tools/dialogs/hosts_booster_dialog_ui.dart

@@ -0,0 +1,290 @@
+import 'dart:io';
+
+import 'package:fluent_ui/fluent_ui.dart';
+import 'package:flutter_hooks/flutter_hooks.dart';
+import 'package:font_awesome_flutter/font_awesome_flutter.dart';
+import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:starcitizen_doctor/common/helper/system_helper.dart';
+import 'package:starcitizen_doctor/common/io/rs_http.dart';
+import 'package:starcitizen_doctor/common/utils/async.dart';
+import 'package:starcitizen_doctor/common/utils/log.dart';
+
+class HostsBoosterDialogUI extends HookConsumerWidget {
+  const HostsBoosterDialogUI({super.key});
+
+  static const _hostsMap = {
+    "Recaptcha": ["www.recaptcha.net", "recaptcha.net"],
+    "RSI 官网": ["robertsspaceindustries.com"],
+    "RSI Zendesk 客服站": ["cloudimperiumservicesllc.zendesk.com"],
+    "RSI 客服站": ["support.robertsspaceindustries.com"],
+  };
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final checkedMap = useState<Map<String, bool>>({});
+    final workingMap = useState<Map<String, int?>>({});
+    final workingText = useState<String>("");
+
+    doHost(BuildContext context) async {
+      if (workingMap.value.isEmpty) {
+        final hasTrue =
+            checkedMap.value.values.where((element) => element).firstOrNull !=
+                null;
+        if (!hasTrue) {
+          for (var k in _hostsMap.keys) {
+            checkedMap.value[k] = true;
+          }
+          checkedMap.value = Map.from(checkedMap.value);
+        }
+      }
+      workingText.value = "正在查询 DNS 并测试可访问性 请耐心等待...";
+      final ipsMap = await _doCheckDns(workingMap, checkedMap);
+      workingText.value = "正在写入 Hosts ...";
+      if (!context.mounted) return;
+      await _doWriteHosts(ipsMap).unwrap(context: context);
+      workingText.value = "读取配置 ...";
+      await _readHostsState(workingMap, checkedMap);
+      workingText.value = "";
+    }
+
+    useEffect(() {
+      // 监听 Hosts 文件变更
+      _readHostsState(workingMap, checkedMap);
+      return null;
+    }, const []);
+
+    return ContentDialog(
+      constraints:
+          BoxConstraints(maxWidth: MediaQuery.of(context).size.width * .55),
+      title: Row(
+        children: [
+          IconButton(
+              icon: const Icon(
+                FluentIcons.back,
+                size: 22,
+              ),
+              onPressed:
+                  workingText.value.isEmpty ? Navigator.of(context).pop : null),
+          const SizedBox(width: 12),
+          const Text("Hosts 加速"),
+          const Spacer(),
+          Button(
+              onPressed: () => _openHostsFile(context),
+              child: const Padding(
+                padding: EdgeInsets.all(3),
+                child: Row(
+                  children: [
+                    Icon(FluentIcons.open_file),
+                    SizedBox(width: 6),
+                    Text("打开 Hosts 文件"),
+                  ],
+                ),
+              ))
+        ],
+      ),
+      content: AnimatedSize(
+        duration: const Duration(milliseconds: 200),
+        child: Column(
+          mainAxisSize: MainAxisSize.min,
+          children: [
+            const SizedBox(height: 12),
+            const Row(
+              children: [
+                SizedBox(width: 12),
+                Text("状态"),
+                SizedBox(width: 38),
+                Text("站点"),
+                Spacer(),
+                Text("是否启用"),
+                SizedBox(width: 12),
+              ],
+            ),
+            const SizedBox(height: 12),
+            ListView.builder(
+              itemCount: _hostsMap.length,
+              shrinkWrap: true,
+              padding: const EdgeInsets.all(6),
+              physics: const NeverScrollableScrollPhysics(),
+              itemBuilder: (BuildContext context, int index) {
+                final isEnable =
+                    checkedMap.value[_hostsMap.keys.elementAt(index)] ?? false;
+                final workingState =
+                    workingMap.value[_hostsMap.keys.elementAt(index)];
+                return Container(
+                  padding: const EdgeInsets.all(12),
+                  margin: const EdgeInsets.only(bottom: 12),
+                  decoration: BoxDecoration(
+                    color: FluentTheme.of(context).cardColor,
+                    borderRadius: BorderRadius.circular(12),
+                  ),
+                  child: Row(
+                    children: [
+                      if (workingState == null)
+                        Icon(FontAwesomeIcons.xmark,
+                            size: 24, color: Colors.red),
+                      if (workingState == 0)
+                        const SizedBox(
+                            width: 24, height: 24, child: ProgressRing()),
+                      if (workingState == 1)
+                        Icon(FontAwesomeIcons.check,
+                            size: 24, color: Colors.green),
+                      const SizedBox(width: 24),
+                      const SizedBox(width: 12),
+                      Text(_hostsMap.keys.elementAt(index)),
+                      const Spacer(),
+                      ToggleSwitch(
+                        onChanged: (value) {
+                          checkedMap.value[_hostsMap.keys.elementAt(index)] =
+                              value;
+                          checkedMap.value = Map.from(checkedMap.value);
+                        },
+                        checked: isEnable,
+                      ),
+                    ],
+                  ),
+                );
+              },
+            ),
+            const SizedBox(height: 12),
+            if (workingText.value.isNotEmpty)
+              SizedBox(
+                height: 86,
+                child: Column(
+                  children: [
+                    const SizedBox(
+                        height: 42, width: 42, child: ProgressRing()),
+                    const SizedBox(height: 12),
+                    Text(workingText.value),
+                  ],
+                ),
+              )
+            else
+              Padding(
+                padding: const EdgeInsets.all(12),
+                child: FilledButton(
+                  onPressed: () => doHost(context),
+                  child: const Padding(
+                    padding:
+                        EdgeInsets.only(top: 3, bottom: 3, left: 12, right: 12),
+                    child: Text("一键加速"),
+                  ),
+                ),
+              ),
+          ],
+        ),
+      ),
+    );
+  }
+
+  Future<void> _openHostsFile(BuildContext context) async {
+    // 使用管理员权限调用记事本打开 Hosts 文件
+    Process.run(SystemHelper.powershellPath, [
+      "-Command",
+      "Start-Process notepad.exe -Verb runAs -ArgumentList ${SystemHelper.getHostsFilePath()}"
+      // ignore: use_build_context_synchronously
+    ]).unwrap(context: context);
+  }
+
+  Future<Map<String, String>> _doCheckDns(
+      ValueNotifier<Map<String, int?>> workingMap,
+      ValueNotifier<Map<String, bool>> checkedMap) async {
+    Map<String, String> result = {};
+    final trueLen = checkedMap.value.values.where((element) => element).length;
+    if (trueLen == 0) {
+      return result;
+    }
+    for (var kv in _hostsMap.entries) {
+      final siteName = kv.key;
+      final siteHost = kv.value.first;
+      if (!(checkedMap.value[siteName] ?? false)) {
+        continue;
+      }
+      workingMap.value[siteName] = 0;
+      workingMap.value = Map.from(workingMap.value);
+      RSHttp.dnsLookupIps(siteHost).then((ips) async {
+        int tryCount = ips.length;
+        try {
+          for (var ip in ips) {
+            final resp =
+                await RSHttp.head("https://$siteHost", withIpAddress: ip);
+            dPrint(
+                "[HostsBooster] host== $siteHost ip== $ip resp== ${resp.headers}");
+            if (resp.headers.isNotEmpty) {
+              if (result[siteName] == null) {
+                result[siteName] = ip;
+                workingMap.value[siteName] = 1;
+                workingMap.value = Map.from(workingMap.value);
+                break;
+              }
+            }
+          }
+        } catch (e) {
+          tryCount--;
+          if (tryCount == 0) {
+            workingMap.value[siteName] = null;
+            workingMap.value = Map.from(workingMap.value);
+            result[siteName] = "";
+          }
+        }
+      }, onError: (e) {
+        workingMap.value[siteName] = null;
+        workingMap.value = Map.from(workingMap.value);
+        result[siteName] = "";
+      });
+    }
+    while (true) {
+      await Future.delayed(const Duration(milliseconds: 100));
+      if (result.length == trueLen) {
+        return result;
+      }
+    }
+  }
+
+  Future<void> _doWriteHosts(Map<String, String> ipsMap) async {
+    // 读取 hosts 文件
+    final hostsFile = File(SystemHelper.getHostsFilePath());
+    final hostsFileString = await hostsFile.readAsString();
+    final hostsFileLines = hostsFileString.split("\n");
+    final newHostsFileLines = <String>[];
+
+    // copy Lines
+    for (var line in hostsFileLines) {
+      if (line.contains("#StarCitizenToolBox")) {
+        break;
+      }
+      newHostsFileLines.add(line);
+    }
+    dPrint("userHostsFile == $hostsFileString");
+    for (var kv in ipsMap.entries) {
+      final domains = _hostsMap[kv.key] ?? <String>[];
+      for (var domain in domains) {
+        if (kv.value != "") {
+          newHostsFileLines
+              .add("${kv.value}     $domain     #StarCitizenToolBox");
+        }
+      }
+    }
+    await hostsFile.writeAsString(newHostsFileLines.join("\n"), flush: true);
+  }
+
+  Future<void> _readHostsState(ValueNotifier<Map<String, int?>> workingMap,
+      ValueNotifier<Map<String, bool>> checkedMap) async {
+    workingMap.value.clear();
+    final hostsFile = File(SystemHelper.getHostsFilePath());
+    final hostsFileString = await hostsFile.readAsString();
+    final hostsFileLines = hostsFileString.split("\n");
+    dPrint("userHostsFile == $hostsFileString");
+    for (var line in hostsFileLines) {
+      if (line.contains("#StarCitizenToolBox")) {
+        for (var host in _hostsMap.entries) {
+          if (line.contains(host.value.first)) {
+            workingMap.value[host.key] = 1;
+            workingMap.value = Map.from(workingMap.value);
+            checkedMap.value[host.key] = true;
+            checkedMap.value = Map.from(checkedMap.value);
+          }
+        }
+      }
+    }
+  }
+}

lib/ui/tools/tools_ui_model.dart

@@ -22,6 +22,8 @@ import 'package:starcitizen_doctor/widgets/widgets.dart';
 import 'package:url_launcher/url_launcher_string.dart';
 import 'package:xml/xml.dart';
 
+import 'dialogs/hosts_booster_dialog_ui.dart';
+
 part 'tools_ui_model.g.dart';
 
 part 'tools_ui_model.freezed.dart';
@@ -81,6 +83,13 @@ class ToolsUIModel extends _$ToolsUIModel {
           const Icon(FontAwesomeIcons.download, size: 28),
           onTap: () => _downloadP4k(context),
         ),
+        ToolsItemData(
+          "hosts_booster",
+          "Hosts 加速",
+          "将 IP 信息写入 Hosts 文件，解决部分地区的 DNS 污染导致无法登录官网等问题。",
+          const Icon(FluentIcons.virtual_network, size: 28),
+          onTap: () => _doHostsBooster(context),
+        ),
         ToolsItemData(
           "reinstall_eac",
           "重装 EasyAntiCheat 反作弊",
@@ -549,4 +558,10 @@ class ToolsUIModel extends _$ToolsUIModel {
   void onChangeLauncherPath(String s) {
     state = state.copyWith(rsiLauncherInstalledPath: s);
   }
+
+  _doHostsBooster(BuildContext context) async {
+    showDialog(
+        context: context,
+        builder: (BuildContext context) => const HostsBoosterDialogUI());
+  }
 }