perf: 是否允许爬虫爬取增加ui设置选项

packages/ui/certd-server/src/controller/basic/root-controller.ts

@@ -0,0 +1,18 @@
+import { Controller, Get, Inject, Provide } from '@midwayjs/core';
+import { Constants, SysSettingsService } from '@certd/lib-server';
+
+@Provide()
+@Controller('/')
+export class HomeController {
+  @Inject()
+  sysSettingsService: SysSettingsService;
+  @Get('/robots.txt', { summary: Constants.per.guest })
+  async robots(): Promise<string> {
+    const publicSettings = await this.sysSettingsService.getPublicSettings();
+    if (!publicSettings.robots) {
+      return 'User-agent: *\nDisallow: /';
+    } else {
+      return 'User-agent: *\nAllow: /';
+    }
+  }
+}