JS逆向之某财富逆向(量化干货)

打印结果看看是否成功：

print('获利比例' + str(get_huoli_billi(result)))
print('平均成本' + str(get_chengben(result))

03

var fator = 150
var range = 120
function a(t, klinedata){
var e = 0
, o = 0
, r = fator
, i = range ? Math.max(0, t - range + 1) : 0
, n = klinedata.slice(i, Math.max(1, t + 1))
if (0 === n.length)
throw "invaild index";
for (var a = 0; a < n.length; a++)
var s = n[a]
, e = e ? Math.max(e, +s[3]) : +s[3]
, o = o ? Math.min(o, +s[4]) : +s[4];
for (var l = Math.max(.01, (e - o) / (r - 1)), h = [], a = 0; a < r; a++)
h.push(+(o + l * a).toFixed(2));
for (var d = function(t) {
for (var e = [], i = 0; i < t; i++)
e.push(0);
return e
}(r), a = 0; a < n.length; a++) {
for (var c = n[a], p = +c[1], g = +c[2], A = +c[3], u = +c[4], f = (p + g + A + u) / 4, m = Math.min(1, c[8] / 100 || 0), C = Math.floor((A - o) / l), y = Math.ceil((u - o) / l), v = [A == u ? r - 1 : 2 / (A - u), Math.floor((f - o) / l)], x = 0; x < d.length; x++)
d[x] *= 1 - m;
if (A == u)
d[v[1]] += v[0] * m / 2;
else
for (var I = y; I <= C; I++) {
var b = o + l * I;
b <= f ? Math.abs(f - u) < 1e-8 ? d[I] += v[0] * m : d[I] += (b - u) / (f - u) * v[0] * m : Math.abs(A - f) < 1e-8 ? d[I] += v[0] * m : d[I] += (A - b) / (A - f) * v[0] * m
}
}
for (var w = +klinedata[t][2], k = 0, a = 0; a < r; a++) {
var M = +d[a].toPrecision(12);
k += M
}
var T = new function() {
this.x = arguments[0],
this.y = arguments[1],
this.benefitPart = arguments[2],
this.avgCost = arguments[3],
this.percentChips = arguments[4],
this.computePercentChips = function(t) {
if (1 < t || t < 0)
throw 'argument "percent" out of range';
var e = [(1 - t) / 2, (1 + t) / 2]
, i = [R(k * e[0]), R(k * e[1])];
return {
priceRange: [i[0].toFixed(2), i[1].toFixed(2)],
concentration: i[0] + i[1] === 0 ? 0 : (i[1] - i[0]) / (i[0] + i[1])
}
}
,
this.getBenefitPart = function(t) {
for (var e = 0, i = 0; i < r; i++) {
var n = +d[i].toPrecision(12);
o + i * l <= t && (e += n)
}
return 0 == k ? 0 : e / k
}
}
;
return T.x = d,
T.y = h,
T.benefitPart = T.getBenefitPart(w),
T.avgCost = R(.5 * k).toFixed(2),
T.percentChips = {
90: T.computePercentChips(.9),
70: T.computePercentChips(.7)
},
T;
function R(t) {
for (var e = 0, i = 0, n = 0; n < r; n++) {
var a = +d[n].toPrecision(12);
if (t < i + a) {
e = o + n * l;
break
}
i += a
}
return e
}
}

04

Python源码

import requests
import time
import random
import json
import execjs
headers = {
'Cookie': 'qgqp_b_id=96d6e6751a2f0e0ef83bde7b8768bab7; HAList=a-sz-002108-%u6CA7%u5DDE%u660E%u73E0; em-quote-version=topspeed; st_si=39126136647263; st_asi=delete; st_pvi=01981213275515; st_sp=2022-06-09%2011%3A36%3A06; st_inirUrl=https%3A%2F%2Fwww.baidu.com%2Flink; st_sn=4; st_psi=20220720192804212-113200301202-3920776165',
'Host': 'push2his.eastmoney.com',
'Referer': 'http://quote.eastmoney.com/',
'User-Agent': 'Mozilla/5.0 (Windows NT 6.3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.54 Safari/537.36 Edg/101.0.1210.39'
}
def get_timestamp():
return int(round(time.time() * 1000))


def get_cb():
return ('jQuery' + '1.12.4' + str(random.random())).replace('.', '') + '_' + str(get_timestamp())


def get_resposne_by_id(id):
url = "http://push2his.eastmoney.com/api/qt/stock/kline/get"
params = {
'cb': get_cb(),
'fields1': 'f1,f2,f3,f4,f5,f6',
'fields2': 'f51,f52,f53,f54,f55,f56,f57,f58,f59,f60,f61',
'ut': '7eea3edcaed734bea9cbfc24409ed989',
'klt': '101',
'fqt': '1',
'secid': '0.' + id,
'beg': '0',
'end': '20500000'
}
response = requests.get(url=url, headers=headers, params=params)
responseTxt = response.text[42:].lstrip("(").rstrip(');')
data = json.loads(responseTxt)['data']
dataReturn = []
for kline in data['klines']:
dataObj =[]
klines = str(kline).split(',')
a8 = ''
a9 = ''
a10 = ''
for i in range(len(klines)):
if i == 7:
dataObj.append(str(klines[i]) + '%')
elif i == 8:
a9 = str(klines[i])
elif i == 9:
a10 = str(klines[i])
elif i == 10:
a8 = str(klines[i])
else:
dataObj.append(str(klines[i]))
dataObj.append(a8)
dataObj.append(a9)
dataObj.append(a10)
dataReturn.append(dataObj)
data['klines'] = dataReturn
return data


def getData(data):
result = ''
with open('./index.js', encoding='utf-8') as file:
jsData = execjs.compile(file.read())
result = jsData.call("a", 3701, data)
return result



def get_chengben(result):
return result['avgCost']



def get_huoli_billi(result):
return 100 * result['benefitPart']


if __name__ == "__main__":
data = get_resposne_by_id('002108')
result = getData(data['klines'])
print('获利比例' + str(get_huoli_billi(result)))
    print('平均成本' + str(get_chengben(result)))