feat: add client IP diagnostics and blocking

back/api/clientIp.ts

@@ -0,0 +1,55 @@
+import { NextFunction, Request, Response, Router } from 'express';
+import { celebrate, Joi } from 'celebrate';
+import {
+  diagnoseClientIp,
+  getTrustProxyConfig,
+  updateTrustProxy,
+} from '../shared/trustProxy';
+
+const route = Router();
+
+export default (app: Router) => {
+  app.use('/system/client-ip', route);
+
+  route.get(
+    '/config',
+    async (req: Request, res: Response, next: NextFunction) => {
+      try {
+        res.send({ code: 200, data: await getTrustProxyConfig() });
+      } catch (error) {
+        next(error);
+      }
+    },
+  );
+
+  route.put(
+    '/config',
+    celebrate({
+      body: Joi.object({
+        trustProxy: Joi.string().max(500).required(),
+      }),
+    }),
+    async (req: Request, res: Response) => {
+      try {
+        const data = await updateTrustProxy(req.body.trustProxy);
+        res.send({ code: 200, data });
+      } catch (error) {
+        res.send({
+          code: 400,
+          message: error instanceof Error ? error.message : '配置更新失败',
+        });
+      }
+    },
+  );
+
+  route.get(
+    '/diagnose',
+    async (req: Request, res: Response, next: NextFunction) => {
+      try {
+        res.send({ code: 200, data: await diagnoseClientIp(req) });
+      } catch (error) {
+        next(error);
+      }
+    },
+  );
+};