修复判断逻辑

lib/app_upgrade_factory.dart

@@ -22,11 +22,11 @@ class AppUpgradeFactory {
     DownloadService downloadService = config.needSTS == true
         ? DownloadServiceFactory.create(
             baseUrl: config.baseUrl,
-            token: config.token!,
-            productCode: config.productCode!,
+            token: config.token ?? '',
+            productCode: config.productCode ?? '',
           )
         : DownloadServiceFactory.createWithoutToken(
-            baseUrl: config.baseUrl, productCode: config.productCode!);
+            baseUrl: config.baseUrl, productCode: config.productCode ?? '');
 
     return AppUpgradeControl(
       versionService: versionService,

lib/core/services/download_service/download_service_factory.dart

@@ -10,7 +10,7 @@ class DownloadServiceFactory {
     required String token,
     required String productCode,
   }) {
-    if (baseUrl.startsWith("https://gateway.")) {
+    if (baseUrl.startsWith("https://gateway.") && token.isNotEmpty) {
       // oss
       return OSSDownloadImpl(
           baseUrl: baseUrl, token: token, productCode: productCode);