#_*_ coding: utf-8 _*_

'''

Created on 2018-7-12

@author: sss

功能：爬取有道翻译

'''

import urllib

import urllib.request

import urllib.parse

import urllib.response

from pip._vendor.urllib3.filepost import encode_multipart_formdata

from pip._vendor.distlib.compat import raw_input

import json

import random

# url = "http://fanyi.youdao.com/translate?smartresult=dict&smartresult=rule&smartresult=ugc&sessionFrom=null"

url = "http://fanyi.youdao.com/translate?smartresult=dict&smartresult=rule"  #http://fanyi.youdao.com/translate_o?smartresult=dict&smartresult=rule要把_o去掉

#user-agent列表，每次请求随机选一个：

ua_list = [

    "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36",

    "Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; rv:11.0) like Gecko",

    "Mozilla/5.0 (X11; CrOS i686 2268.111.0)like Gecko",

    "Mozilla/5.0 (Macintosh; U; PPC Mac OS X ",

    "Mozilla/5.0 (Macintosh; Intel Mac OS "

]

user_agnet = random.choice(ua_list)

headers = {

        "Connection" : "keep-alive",

        "Accept" : "application/json, text/javascript, */*; q=0.01",

        "X-Requested-With" : "XMLHttpRequest",

        "User-Agent" : user_agnet,

        "Content-Type" : "application/x-www-form-urlencoded; charset=UTF-8",

        "Referer" : "http://fanyi.youdao.com/"

    }

key = raw_input("请输入需要翻译的文字：\n")

formdata = {

        "i" :key,

        "from " :"AUTO",

        "to" :"AUTO",

        "smartresult" :"dict",

        "client" :"fanyideskweb",

        "salt" :"1531403738742",  #这个应该是个时间戳

        "sign" :"ffa2b29fe52953208226d97a174bcea7", #应该是根据时间戳+你要翻译的内容加密后生成的验证字段

        "doctype" :"json",

        "version" :"2.1",

        "keyfrom" :"fanyi.web",

        "action" :"FY_BY_REALTIME",

        "typoResult" :"false"

    }

data = urllib.parse.urlencode(formdata ).encode(encoding='UTF8')  #这里后面要加encoding='utf-8'

request = urllib.request.Request(url, data = data, headers = headers)

html = urllib.request.urlopen(request).read()

print(html)

print('完成！')

target = json.loads(html)

print("翻译结果：%s"%(target['translateResult'][0][0]['tgt'])) #读出结果

print(headers)