有道翻译采用js加密的方式，阻碍我们使用代码进行翻译。分析发送请求时提交的Form Data，数据中的salt（盐）和sign（签名）是常见的js加密方式，salt是一个很长的随机串，是防止程序员使用字典反推（{明文：密文}--{密文：明文}）的形式破解加密方式（增加了原字符串的数量，使破解难以完成）。sign也是一种js加密方式。
        sign的加密方式使用了md5加密算法，即消息摘要算法第五版，提供消息的完整性保护，由js代码可知md5()的参数是一个由四个字符串组成的字符串，第一个和第二个都是常字符串，第三个是所谓的salt，第四个是输入要翻译的单词；salt的加密方式是当前时间取整*1000然后再加上0~10之间的一个随机数而得。下面直接上代码：

[Python] 纯文本查看 复制代码

import hashlib
import json
import random
import time
import requests


def youdao():
    content = input("请输入您要翻译的内容:")
    u = 'fanyideskweb'
    d = content

    # 生成salt
    salt = str(int(time.time() * 1000) + random.randint(1, 10))


    c = 'p09@Bn{h02_BIEe]$P^nG'

    # 生成sign
    sign = hashlib.md5((u + d + salt + c).encode('utf-8')).hexdigest()

    url = "http://fanyi.youdao.com/translate_o?smartresult=dict&smartresult=rule"
    data = {
        "i": content,
        "from": "AUTO",
        "to": "AUTO",
        "smartresult": "dict",
        "client": "fanyideskweb",
        "salt": salt,
        "sign": sign,
        # "ts": "1547536652328",
        # "bv": "363eb5a1de8cfbadd0cd78bd6bd43bee",
        "doctype": "json",
        "version": "2.1",
        "keyfrom": "fanyi.web",
        "action": "FY_BY_REALTIME",
        "typoResult": "false",
    }
    headers = {
        "Accept": "application/json, text/javascript, */*; q=0.01",
        "Accept-Language": "zh-CN,zh;q = 0.9",
        "Connection": "keep-alive",
        "Content-Length": "271",
        "Content-Type": "application/x-www-form-urlencoded; charset=UTF-8",
        "Cookie": "OUTFOX_SEARCH_USER_ID=-1105037136@10.168.8.64; JSESSIONID=aaadY5kjkBpKngxtXrqHw; OUTFOX_SEARCH_USER_ID_NCOO=1440145660.3035378; ___rl__test__cookies=1547536652325",
        "Host": "fanyi.youdao.com",
        "Origin": "http://fanyi.youdao.com",
        "Referer": "http://fanyi.youdao.com/",
        "User-Agent": "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36",
    }

    response = requests.post(url, data=data, headers=headers)

    print(json.loads(response.content.decode()).get("translateResult")[0][0].get("tgt"))
    print(response.content.decode())


if __name__ == '__main__':
    youdao()

       有道翻译采用js加密的方式，阻碍我们使用代码进行翻译。分析发送请求时提交的Form Data，数据中的salt（盐）和sign（签名）是常见的js加密方式，salt是一个很长的随机串，是防止程序员使用字典反推（{明文：密文}--{密文：明文}）的形式破解加密方式（增加了原字符串的数量，使破解难以完成）。sign也是一种js加密方式。
        sign的加密方式使用了md5加密算法，即消息摘要算法第五版，提供消息的完整性保护，由js代码可知md5()的参数是一个由四个字符串组成的字符串，第一个和第二个都是常字符串，第三个是所谓的salt，第四个是输入要翻译的单词；salt的加密方式是当前时间取整*1000然后再加上0~10之间的一个随机数而得。下面直接上代码：

[Python] 纯文本查看 复制代码

import hashlib
import json
import random
import time
import requests


def youdao():
    content = input("请输入您要翻译的内容:")
    u = 'fanyideskweb'
    d = content

    # 生成salt
    salt = str(int(time.time() * 1000) + random.randint(1, 10))


    c = 'p09@Bn{h02_BIEe]$P^nG'

    # 生成sign
    sign = hashlib.md5((u + d + salt + c).encode('utf-8')).hexdigest()

    url = "http://fanyi.youdao.com/translate_o?smartresult=dict&smartresult=rule"
    data = {
        "i": content,
        "from": "AUTO",
        "to": "AUTO",
        "smartresult": "dict",
        "client": "fanyideskweb",
        "salt": salt,
        "sign": sign,
        # "ts": "1547536652328",
        # "bv": "363eb5a1de8cfbadd0cd78bd6bd43bee",
        "doctype": "json",
        "version": "2.1",
        "keyfrom": "fanyi.web",
        "action": "FY_BY_REALTIME",
        "typoResult": "false",
    }
    headers = {
        "Accept": "application/json, text/javascript, */*; q=0.01",
        "Accept-Language": "zh-CN,zh;q = 0.9",
        "Connection": "keep-alive",
        "Content-Length": "271",
        "Content-Type": "application/x-www-form-urlencoded; charset=UTF-8",
        "Cookie": "OUTFOX_SEARCH_USER_ID=-1105037136@10.168.8.64; JSESSIONID=aaadY5kjkBpKngxtXrqHw; OUTFOX_SEARCH_USER_ID_NCOO=1440145660.3035378; ___rl__test__cookies=1547536652325",
        "Host": "fanyi.youdao.com",
        "Origin": "http://fanyi.youdao.com",
        "Referer": "http://fanyi.youdao.com/",
        "User-Agent": "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36",
    }

    response = requests.post(url, data=data, headers=headers)

    print(json.loads(response.content.decode()).get("translateResult")[0][0].get("tgt"))
    print(response.content.decode())


if __name__ == '__main__':
    youdao()