feat: 更新 H5 线路配置逻辑，添加默认线路处理和相关单元测试

README.md

@@ -2,6 +2,8 @@
 
 Flutter WebView 套壳 App，启动后会请求 `/client_config/query` 获取 H5 线路配置，并加载第一条可用线路。
 
+默认情况下，非本地 Web 访问会使用当前服务地址的 origin 作为 H5 线路和接口域名，例如访问 `https://app.example.com/app/` 时会请求 `https://app.example.com/client_config/query`。本地访问（如 `localhost`、`127.0.0.1`）继续使用固定兜底域名 `https://h5-test.imharry.work/`。
+
 ## H5 线路切换
 
 线路切换在 Flutter 套壳层完成。远程配置不可用时，会先使用启动兜底线路；也可以在打包时覆盖启动线路或配置接口地址：

lib/config/app_config.dart

@@ -42,8 +42,7 @@ class AppConfig {
 
   static List<H5Line> get h5Lines {
     final configuredUrls = _dartDefinedH5LineUrls.trim().isEmpty
-        ? _normalizedUniqueUrls(_environmentHosts[currentEnvironment] ??
-            const [_bootstrapH5LineUrl])
+        ? _normalizedUniqueUrls(defaultH5LineUrlsForBaseUri(Uri.base))
         : _normalizedUniqueUrls(_dartDefinedH5LineUrls.split(','));
     final urls = configuredUrls.isEmpty
         ? _normalizedUniqueUrls(const [_bootstrapH5LineUrl])
@@ -71,18 +70,26 @@ class AppConfig {
       return const [];
     }
 
-    final homeUri = lines.first.uri;
+    return clientConfigQueryUrisForHomeUri(lines.first.uri);
+  }
+
+  static List<String> defaultH5LineUrlsForBaseUri(Uri baseUri) {
+    final runtimeHomeUrl = _runtimeHomeUrlFromBaseUri(baseUri);
+    if (runtimeHomeUrl != null) {
+      return [runtimeHomeUrl];
+    }
+
+    final environmentHosts = _environmentHosts[currentEnvironment];
+    if (environmentHosts == null || environmentHosts.isEmpty) {
+      return const [_bootstrapH5LineUrl];
+    }
+    return environmentHosts;
+  }
+
+  static List<Uri> clientConfigQueryUrisForHomeUri(Uri homeUri) {
     return [
-      homeUri.replace(
-        path: '/client_config/query',
-        queryParameters: const {},
-        fragment: '',
-      ),
-      homeUri.replace(
-        path: '/api/user/client_config/query',
-        queryParameters: const {},
-        fragment: '',
-      ),
+      _originUriWithPath(homeUri, '/client_config/query'),
+      _originUriWithPath(homeUri, '/api/user/client_config/query'),
     ];
   }
 
@@ -191,6 +198,69 @@ class AppConfig {
     return uri.replace(path: path).toString();
   }
 
+  static String? _runtimeHomeUrlFromBaseUri(Uri baseUri) {
+    if (_isLocalRuntimeUri(baseUri)) {
+      return null;
+    }
+
+    return _originUriWithPath(baseUri, '/').toString();
+  }
+
+  static Uri _originUriWithPath(Uri uri, String path) {
+    final normalizedPath = path.startsWith('/') ? path : '/$path';
+    return Uri.parse('${uri.scheme}://${uri.authority}$normalizedPath');
+  }
+
+  static bool _isLocalRuntimeUri(Uri uri) {
+    if (uri.scheme != 'http' && uri.scheme != 'https') {
+      return true;
+    }
+
+    final host = _normalizeHostForCompare(uri.host);
+    if (host.isEmpty) {
+      return true;
+    }
+
+    if (host == 'localhost' || host.endsWith('.localhost') || host == '::1') {
+      return true;
+    }
+
+    final ipv4Parts = _tryParseIpv4Address(host);
+    if (ipv4Parts == null) {
+      return false;
+    }
+
+    return ipv4Parts[0] == 127 || ipv4Parts.every((part) => part == 0);
+  }
+
+  static String _normalizeHostForCompare(String host) {
+    final normalized = host.trim().toLowerCase();
+    if (normalized.endsWith('.')) {
+      return normalized.substring(0, normalized.length - 1);
+    }
+    return normalized;
+  }
+
+  static List<int>? _tryParseIpv4Address(String host) {
+    final parts = host.split('.');
+    if (parts.length != 4) {
+      return null;
+    }
+
+    final octets = <int>[];
+    for (final part in parts) {
+      if (part.isEmpty || !RegExp(r'^\d+$').hasMatch(part)) {
+        return null;
+      }
+      final value = int.tryParse(part);
+      if (value == null || value < 0 || value > 255) {
+        return null;
+      }
+      octets.add(value);
+    }
+    return octets;
+  }
+
   static String _replaceWildcardHost(
     String value, {
     String Function()? wildcardFactory,

test/widget_test.dart

@@ -20,6 +20,30 @@ void main() {
     expect(Uri.parse(lines.first.url).path, '/');
   });
 
+  test('uses current non-local service origin as default H5 line', () {
+    final urls = AppConfig.defaultH5LineUrlsForBaseUri(
+      Uri.parse('https://app.example.com/shell/index.html?from=local#hash'),
+    );
+
+    expect(urls, ['https://app.example.com/']);
+  });
+
+  test('preserves current service port when building default H5 line', () {
+    final urls = AppConfig.defaultH5LineUrlsForBaseUri(
+      Uri.parse('https://chat.example.com:8443/app/'),
+    );
+
+    expect(urls, ['https://chat.example.com:8443/']);
+  });
+
+  test('keeps fixed bootstrap H5 line for local browser access', () {
+    final urls = AppConfig.defaultH5LineUrlsForBaseUri(
+      Uri.parse('http://localhost:3000/'),
+    );
+
+    expect(urls, ['https://h5-test.imharry.work/']);
+  });
+
   test('uses fixed client config query parameters', () {
     expect(AppConfig.clientConfigQueryPayload, {
       'device': 'h5',
@@ -31,6 +55,20 @@ void main() {
     );
   });
 
+  test('builds client config query APIs from current service origin', () {
+    final uris = AppConfig.clientConfigQueryUrisForHomeUri(
+      Uri.parse('https://app.example.com/app/index.html?from=local#hash'),
+    );
+
+    expect(
+      uris.map((uri) => uri.toString()),
+      [
+        'https://app.example.com/client_config/query',
+        'https://app.example.com/api/user/client_config/query',
+      ],
+    );
+  });
+
   test('splits client config resourceUrl into indexed H5 lines', () {
     final lines = AppConfig.h5LinesFromResourceUrl(
       'line-one.example\nhttps://line-two.example/app\n\nline-three.example',