小红书web search_id

没啥写的，我没验证，大家自己试试

js：

function F(){
    var timestamp = new Date().getTime().toString();
    if (timestamp.length < 13) {
      timestamp = timestamp.padEnd(13, "0");
    }
    return timestamp
}

function J() {
            var e;
            var t = BigInt(F())
              , r = BigInt(Math.ceil(2147483646 * Math.random()));
            return t <<= BigInt(64),
            (t += r).toString(36)
        }
console.log(J())

python：

import time
import random
import math

def F():
    timestamp = str(math.floor(time.time() * 1000))
    if len(timestamp) < 13:
        timestamp = timestamp.ljust(13, "0")
    return timestamp

def J():
    t = int(F())
    r = random.randint(1, 2147483646)
    t <<= 64
    t += r
    return base36encode(t)

def base36encode(number):
    digits = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"
    base36 = ""
    while number:
        number, i = divmod(number, 36)
        base36 = digits[i] + base36
    return base36.lower()

print(J())

关于搜索中文编码的问题：

requests传出去后uincode编码了，所以keyword异常。

需要转换下：json.dumps(data,separators=(",", ":"),ensure_ascii=False).encode('utf-8')

注意content-type

def saerch(keyword,web_session,a1):
    headers = {
        "accept":"application/json, text/plain, */*",
        "cache-control":"no-cache",
        "content-type":"application/json;charset=UTF-8",
        "cookie":f"a1={a1}; web_session={web_session};",
        "origin":"https://www.xiaohongshu.com",
        "referer":"https://www.xiaohongshu.com/",
        "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",
        "x-b3-traceid":"a31fffc0ee4f5d8f",
        "x-s-common":"",
    }
    data = {"keyword":keyword,"page":1,"page_size":20,"search_id":J(),"sort":"general","note_type":0}
    exc = execjs.compile(open('xs20230531.js', 'r', encoding='utf-8').read())
    xs_xt = exc.call('get_xs','/api/sns/web/v1/search/notes',data,a1)
    xs_xt['X-t'] = str(xs_xt['X-t'])
    headers.update(xs_xt)
    feed = 'https://edith.xiaohongshu.com/api/sns/web/v1/search/notes'
    print(requests.post(url=feed,data=json.dumps(data,separators=(",", ":"),ensure_ascii=False).encode('utf-8'), headers=headers).text)