Example #1
0
func runHandler(resp http.ResponseWriter, req *http.Request,
	fn func(resp http.ResponseWriter, req *http.Request) error, errfn httputil.Error) {
	defer func() {
		if rv := recover(); rv != nil {
			err := errors.New("handler panic")
			logError(req, err, rv)
			errfn(resp, req, http.StatusInternalServerError, err)
		}
	}()

	if s := req.Header.Get("X-Real-Ip"); s != "" && httputil.StripPort(req.RemoteAddr) == "127.0.0.1" {
		req.RemoteAddr = s
	}

	req.Body = http.MaxBytesReader(resp, req.Body, 2048)
	req.ParseForm()
	var rb httputil.ResponseBuffer
	err := fn(&rb, req)
	if err == nil {
		rb.WriteTo(resp)
	} else if e, ok := err.(*httpError); ok {
		if e.status >= 500 {
			logError(req, err, nil)
		}
		errfn(resp, req, e.status, e.err)
	} else {
		logError(req, err, nil)
		errfn(resp, req, http.StatusInternalServerError, err)
	}
}
Example #2
0
func isRobot(req *http.Request) bool {
	if robotPat.MatchString(req.Header.Get("User-Agent")) {
		return true
	}
	host := httputil.StripPort(req.RemoteAddr)
	n, err := db.IncrementCounter(host, 1)
	if err != nil {
		log.Printf("error incrementing counter for %s,  %v\n", host, err)
		return false
	}
	if n > *robot {
		log.Printf("robot %.2f %s %s", n, host, req.Header.Get("User-Agent"))
		return true
	}
	return false
}