一、通過抓包,發現buvid3值存在與該連結的響應cookie中
二、Python代碼實作
import requests
def 擷取buvid3():
視訊位址='https://www.bilibili.com/video/BV1vo4y1A7ED/'
頭資訊={
'User-Agent':'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36'
}
響應=requests.get(url=視訊位址,headers=頭資訊)
buvid3=響應.cookies.get_dict()
print(buvid3['buvid3'])
擷取buvid3()
三、重新清除cookie,重新整理頁面,全局搜尋_uuid的值,并在關鍵處下斷,這裡是一個三元運算符,如果空值,就指派Object(l.a)()
四、進入Object(l.a)()函數
五、将該函數複制到js編輯器,然後再找a函數和s函數,a函數又用到了o函數,正好都在附近,最終js代碼加密如下
function getuuid(){
var e = a(8)
, t = a(4)
, r = a(4)
, n = a(4)
, o = a(12)
, i = (new Date).getTime();
return e + "-" + t + "-" + r + "-" + n + "-" + o + s((i % 1e5).toString(), 5) + "infoc"
}
function a(e) {
for (var t = "", r = 0; r < e; r++)
t += o(16 * Math.random());
return s(t, e)
}
function s(e, t) {
var r = "";
if (e.length < t)
for (var n = 0; n < t - e.length; n++)
r += "0";
return r + e
}
function o(e) {
return Math.ceil(e).toString(16).toUpperCase()
}
六、運作結果