func IsBrowser(r *http.Request) bool

import (
    "net/http"
    "github.com/woodchen-ink/go-web-utils/uautil"
)

func handler(w http.ResponseWriter, r *http.Request) {
    if !uautil.IsBrowser(r) {
        http.Error(w, "仅允许浏览器访问", http.StatusForbidden)
        return
    }

    // 处理浏览器请求
    w.Write([]byte("欢迎使用浏览器访问"))
}

func main() {
    http.HandleFunc("/browser-only", func(w http.ResponseWriter, r *http.Request) {
        if !uautil.IsBrowser(r) {
            http.Error(w, "请使用浏览器访问", http.StatusForbidden)
            return
        }
        w.Write([]byte("浏览器访问成功"))
    })

    http.ListenAndServe(":8080", nil)
}

Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:89.0) Gecko/20100101 Firefox/89.0
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.1.1 Safari/605.1.15

curl/7.68.0
python-requests/2.26.0
Wget/1.20.3
Go-http-client/1.1
Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)