【60行代码解决】2024年最新版python爬虫有道翻译js逆向

不会飞的鲨鱼 / 2024-02-19 / 原文

一、表单参数sign加密

sign: c0f36866a9c650144ed5bac4eba532a7
这种32位一般是MD5加密

1.搜索sign:

2.点击去分别在每个 sign: 某某某处打上断点

结果在这个断点断住了

3.原代码

const u = "fanyideskweb"
    , d = "webfanyi"
function j(e) {
    return c.a.createHash("md5").update(e.toString()).digest("hex")
}

function k(e, t) {
    return j(`client=${u}&mysticTime=${e}&product=${d}&key=${t}`)
}

function E(e, t) {
    const o = (new Date).getTime();
    return {
        sign: k(o, e),
    }
}

4.坑点！！

第一次：sign: k(o, e)
e = 'asdjnjfenknafdfsdfsd'
对应的请求：https://dict.youdao.com/webtranslate/key?keyid=webfanyi-key-getter&sign=

第二次：sign: k(o, e)
e = 'fsdsogkndfokasodnaso'
对应的请求：https://dict.youdao.com/webtranslate
我们要用第二次的e值

5.JS代码处理sign

const crypto = require('crypto')

const u = "fanyideskweb"
    , d = "webfanyi"

function j(e) {
    return crypto.createHash("md5").update(e.toString()).digest("hex")
}

function k(e, t) {
    return j(`client=${u}&mysticTime=${e}&product=${d}&key=${t}`)
}

function get_sign() {
    const e = 'fsdsogkndfokasodnaso';
    const o = (new Date).getTime();
    return {
        sign: k(o, e)
    }
}
console.log(get_sign())

6.python代码处理sign

import time
import hashlib

timestamp = int(time.time() * 1000)
# 获取sign
def get_sign():
    e = f'client=fanyideskweb&mysticTime={timestamp}&product=webfanyi&key=fsdsogkndfokasodnaso'
    md5 = hashlib.md5()  # 创建一个md5对象
    md5.update(e.encode('utf-8'))  # 使用utf-8编码数据
    sign = md5.hexdigest()  # 返回加密后的十六进制字符串
    return sign
print(get_sign())

二、响应数据解密

1.搜索 JSON.parse(

2.点进去打上断点

o = 密文
Po["a"].decodeData(o, Wo["a"].state.text.decodeKey, Wo["a"].state.text.decodeIv) = 明文

3.进入Po["a"].decodeData()方法

点这个看

4.原代码

var o = 'ydsecret://query/key/B*RGygVywfNBwpmBaZg*WT7SIOUP2T0C9WHMZN39j^DAdaZhAnxvGcCY6VYFwnHl'
var n = 'ydsecret://query/iv/C@lZe2YzHtZ2CYgaXKSVfsb7Y4QWHjITPPZ0nQp87fBeJ!Iv6v^6fvi2WN@bYpJ4'
const a = e.alloc(16, y(o)) // 8位无符号整数的固定长度的数组(数组长度为16)
    , i = e.alloc(16, y(n)) // 8位无符号整数的固定长度的数组(数组长度为16)
    , r = c.a.createDecipheriv("aes-128-cbc", a, i);
let s = r.update(t, "base64", "utf-8");
return s += r.final("utf-8"), s

5.JS代码处理密文

const crypto = require('crypto')

function encryptdata(t) {
    const a = new Uint8Array([8, 20, 157, 167, 60, 89, 206, 98, 85, 91, 1, 233, 47, 52, 232, 56]) // 8位无符号整数数组  
    // 或者将new Uint8Array 改为Buffer.from也可以
      , i = new Uint8Array([210, 187, 27, 253, 232, 59, 56, 195, 68, 54, 99, 87, 183, 156, 174, 28])
      , r = crypto.createDecipheriv("aes-128-cbc", a, i);
    let s = r.update(t, "base64", "utf-8");
    return s += r.final("utf-8"), s
}

// t 是密文
t = 'Z21kD9ZK1ke6ugku2ccWu-MeDWh3z252xRTQv-wZ6jd-f4VUaQOlThzHO02JcemZvxc0nJ-vbhDbFJRQdHPTtKovDPAv1sDHCrmpMuYhk7ykQ_zXbIHWZq1lhkbfP_KiB3fg19tI6sTvwyKrG_AF8e28EjCELO-0zHUqyiTAn4Q6jKY5mhCX_N2Tvy4AifRcUQw6y_hlNV-qjgxSvFekmckOymIxOvG11B5nHd4AeyF2cCqlv8nRvrTAEAn1VbQ59gZISkVM0D-yGkWv_cVP9aI2IdancjJkRY20-8NqSMI2Nu9tJES1XdceaZGS2EJCusOFCl30Dc4UQOtCvysyGsSiE6YRgdZ3_xbnAVYDskGcgiKEMxA9CxoZylVmaF2z041XLE4Q0tj2PGwOgRgXr0FBfPMcsr0qghdWjii8oJlfbix6DmCGpW1Zu6w9h2uGTHE8FAIumN0uYW5Fo-D5I8VcAx6y1uBZmJpVufdt2Sabq7EA_OaZyuipzgzXOWqUEfLRvtApxAs_aTEXKXXuvxW0aHrFD9ZV_YfmmsJOvu-r9IF2pYMoBccTUJ0d2B6kQywvGLe3Hw52RhmnOQ80NfCWwRBxTOcK30RM_-LEvGW_7Gdu36Ef9bsTiblvp9Xi'
console.log(encryptdata(t))

6.python代码处理密文

import base64
from Crypto.Cipher import AES  # pip install pycryptodome

def encrypt_data(response):
    uint8_array_key = bytearray([8, 20, 157, 167, 60, 89, 206, 98, 85, 91, 1, 233, 47, 52, 232, 56])  # 字节数组 秘钥
    uint8_array_iv = bytearray([210, 187, 27, 253, 232, 59, 56, 195, 68, 54, 99, 87, 183, 156, 174, 28])  # 字节数组 偏移量
    cipher = AES.new(uint8_array_key, AES.MODE_CBC, uint8_array_iv)  # 创建一个AES对象（密钥，模式，偏移量）
    cipherText = base64.urlsafe_b64decode(response)  # 将二进制字符串解码成正常形式的字符串
    result = cipher.decrypt(cipherText).decode()
    return result

response =  'Z21kD9ZK1ke6ugku2ccWu-MeDWh3z252xRTQv-wZ6jd-f4VUaQOlThzHO02JcemZvxc0nJ-vbhDbFJRQdHPTtKovDPAv1sDHCrmpMuYhk7ykQ_zXbIHWZq1lhkbfP_KiB3fg19tI6sTvwyKrG_AF8e28EjCELO-0zHUqyiTAn4Q6jKY5mhCX_N2Tvy4AifRcUQw6y_hlNV-qjgxSvFekmckOymIxOvG11B5nHd4AeyF2cCqlv8nRvrTAEAn1VbQ59gZISkVM0D-yGkWv_cVP9aI2IdancjJkRY20-8NqSMI2Nu9tJES1XdceaZGS2EJCusOFCl30Dc4UQOtCvysyGsSiE6YRgdZ3_xbnAVYDskGcgiKEMxA9CxoZylVmaF2z041XLE4Q0tj2PGwOgRgXr0FBfPMcsr0qghdWjii8oJlfbix6DmCGpW1Zu6w9h2uGTHE8FAIumN0uYW5Fo-D5I8VcAx6y1uBZmJpVufdt2Sabq7EA_OaZyuipzgzXOWqUEfLRvtApxAs_aTEXKXXuvxW0aHrFD9ZV_YfmmsJOvu-r9IF2pYMoBccTUJ0d2B6kQywvGLe3Hw52RhmnOQ80NfCWwRBxTOcK30RM_-LEvGW_7Gdu36Ef9bsTiblvp9Xi'

print(encrypt_data(response))

三、完整python代码

import time
import requests
import base64
import hashlib
from Crypto.Cipher import AES  # pip install pycryptodome


# 获取sign
def get_sign():
    timestamp = int(time.time() * 1000)
    e = f'client=fanyideskweb&mysticTime={timestamp}&product=webfanyi&key=fsdsogkndfokasodnaso'
    md5 = hashlib.md5()  # 创建一个md5对象
    md5.update(e.encode('utf-8'))  # 使用utf-8编码数据
    sign = md5.hexdigest()  # 返回加密后的十六进制字符串
    return sign

# 获取响应密文
def get_response(text):
    headers = {
        'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0',
        'Referer': 'https://fanyi.youdao.com/',
        'Cookie': 'YOUDAO_MOBILE_ACCESS_TYPE=1; OUTFOX_SEARCH_USER_ID_NCOO=550293237.6976808; OUTFOX_SEARCH_USER_ID=-1744705844@115.153.148.150'
    }
    data = {
        "i": text,
        "from": "auto",
        "to": "",
        "dictResult": "true",
        "keyid": "webfanyi",
        "sign": get_sign(),
        "client": "fanyideskweb",
        "product": "webfanyi",
        "appVersion": "1.0.0",
        "vendor": "web",
        "pointParam": "client,mysticTime,product",
        "mysticTime": str(int(time.time() * 1000)),
        "keyfrom": "fanyi.web",
        "mid": "1",
        "screen": "1",
        "model": "1",
        "network": "wifi",
        "abtest": "0",
        "yduuid": "abcdefg"
    }
    response = requests.post('https://dict.youdao.com/webtranslate', headers=headers, data=data).text
    return response

# 解密
def encrypt_data(response):
    uint8_array_key = bytearray([8, 20, 157, 167, 60, 89, 206, 98, 85, 91, 1, 233, 47, 52, 232, 56])  # 字节数组 秘钥
    uint8_array_iv = bytearray([210, 187, 27, 253, 232, 59, 56, 195, 68, 54, 99, 87, 183, 156, 174, 28])  # 字节数组 偏移量
    cipher = AES.new(uint8_array_key, AES.MODE_CBC, uint8_array_iv)  # 创建一个AES对象（密钥，模式，偏移量）
    cipherText = base64.urlsafe_b64decode(response)  # 将二进制字符串解码成正常形式的字符串
    result = cipher.decrypt(cipherText).decode()
    return result

if __name__ == '__main__':
    # text = input('输入：')
    text = 'hello world'
    res = encrypt_data(get_response(text))
    print(res)