抓取真实浏览器设备指纹fingerprint写入cookie方案

一个关于抓取真实浏览器设备指纹写入cookie方案，用户访问页面获取到用户设备生成指纹id，通过js把指纹存入cookie，然后用php进行获取cookie存的指纹值到后台。

用途：追踪用户设备，防恶意注册，防恶意采集

浏览器指纹功能：无论如何换ip和ua，都无法改变浏览器指纹值

上写法：

首页在前端页面js引入：

<!--引入浏览器指纹!-->
<script>
function getCookie(name) { 
    var cookieValue = null; 
    var cookies = document.cookie.split("; "); 
    for (var i = 0; i < cookies.length; i++) { 
        var cookie = cookies[i].split("="); 
        if (cookie[0] == name) { 
            cookieValue = cookie[1]; 
            break; 
        } 
    } 
    return cookieValue; 
}
</script>
 
 
<script>
  function initFingerprintJS() {
    FingerprintJS.load().then(fp => {
      fp.get().then(result => {
        const visitorId = result.visitorId;
        var cookieValue = getCookie("visitorId");
        if (cookieValue) {
    }else{
if(navigator.cookieEnabled) {
document.cookie = "visitorId="+visitorId+"; expires=Thu, 31 Dec 2035 12:00:00 UTC; path=/";
window.location = window.location;
}
else {
  alert("未开启cookie缓存！");
  break;
}
}
      });
    });
  }
</script>
<script
  async
  src="//static.nongpin88.com/skin/default/js/fingerprint.js"
  onload="initFingerprintJS()"
>
</script>

　然后php后端获取cookie调取就简单了：