# coding=utf-8
import urllib
import urllib2
import json
import time
import hashlib
class YouDaoFanyi:
 def __init__(self, appKey, appSecret):
  self.url = 'https://openapi.youdao.com/api/'
  self.headers = {
   "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.109 Safari/537.36",
  }
  self.appKey = appKey # 應用id
  self.appSecret = appSecret # 應用密鑰
  self.langFrom = 'auto' # 翻譯前文字語言,auto為自動檢查
  self.langTo = 'auto'  # 翻譯后文字語言,auto為自動檢查
 def getUrlEncodedData(self, queryText):
  '''
  將數據url編碼
  :param queryText: 待翻譯的文字
  :return: 返回url編碼過的數據
  '''
  salt = str(int(round(time.time() * 1000))) # 產生隨機數 ,其實固定值也可以,不如"2"
  sign_str = self.appKey + queryText + salt + self.appSecret
  sign = hashlib.md5(sign_str).hexdigest()
  payload = {
   'q': queryText,
   'from': self.langFrom,
   'to': self.langTo,
   'appKey': self.appKey,
   'salt': salt,
   'sign': sign
  }
  # 注意是get請求，不是請求
  data = urllib.urlencode(payload)
  return data
 def parseHtml(self, html):
  '''
  解析頁面，輸出翻譯結果
  :param html: 翻譯返回的頁面內容
  :return: None
  '''
  data = json.loads(html)
  print '-' * 10
  translationResult = data['translation']
  if isinstance(translationResult, list):
   translationResult = translationResult[0]
  print translationResult
  if "basic" in data:
   youdaoResult = "\n".join(data['basic']['explains'])
   print '有道詞典結果'
   print youdaoResult
  print '-' * 10
 def translate(self, queryText):
  data = self.getUrlEncodedData(queryText) # 獲取url編碼過的數據
  target_url = self.url + '?' + data # 構造目標url
  request = urllib2.Request(target_url, headers=self.headers) # 構造請求
  response = urllib2.urlopen(request) # 發送請求
  self.parseHtml(response.read()) # 解析，顯示翻譯結果
if __name__ == "__main__":
 appKey = '應用id' # 應用id
 appSecret = '應用密鑰' # 應用密鑰
 fanyi = YouDaoFanyi(appKey, appSecret)
 while True:
  queryText = raw_input("請輸入你好翻譯的文字[Q|quit退出]: ").strip()
  if queryText in ['Q', 'quit']:
   break
  fanyi.translate(queryText)