rpn.supertraderfx-cn/fs_wrapper_handler.go

package main

import (
	"net/http"
)

type NotFoundRedirectRespWr struct {
	http.ResponseWriter // We embed http.ResponseWriter
	status              int
}

func (w *NotFoundRedirectRespWr) WriteHeader(status int) {
	w.status = status // Store the status for our own use
	if status != http.StatusNotFound {
		w.ResponseWriter.WriteHeader(status)
	}
}

func (w *NotFoundRedirectRespWr) Write(p []byte) (int, error) {
	if w.status != http.StatusNotFound {
		return w.ResponseWriter.Write(p)
	}
	return len(p), nil // Lie that we successfully written it
}

func wrapHandler(h http.Handler) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		if r.URL.Path == "/" {
			StartPay(w, r)
		} else {
			h.ServeHTTP(w, r)
		}
	}
}