feat: QPS Limit middleware (#2956)

* feat: QPS Limit middleware

* chore: use request-ip to get client ip

* feat: frequencyLimit schema

packages/service/common/middle/qpsLimit.ts

@@ -0,0 +1,26 @@
+import { ApiRequestProps } from 'type/next';
+import requestIp from 'request-ip';
+import { ERROR_ENUM } from '@fastgpt/global/common/error/errorCode';
+import { authFrequencyLimit } from 'common/system/frequencyLimit/utils';
+import { addSeconds } from 'date-fns';
+
+// unit: times/s
+// how to use?
+// export default NextAPI(useQPSLimit(10), handler); // limit 10 times per second for a ip
+export function useQPSLimit(limit: number) {
+  return async (req: ApiRequestProps) => {
+    const ip = requestIp.getClientIp(req);
+    if (!ip) {
+      return;
+    }
+    try {
+      await authFrequencyLimit({
+        eventId: 'ip-qps-limit' + ip,
+        maxAmount: limit,
+        expiredTime: addSeconds(new Date(), 1)
+      });
+    } catch (_) {
+      return Promise.reject(ERROR_ENUM.QPSLimitExceed);
+    }
+  };
+}