# -*- coding: utf-8 -*-
import hashlib
import web
import lxml
import time
import os
import urllib2,json
import urllib
import re
import random
import hashlib
import cookielib
from urllib import urlencode
from lxml import etree
 
class WeixinInterface:
 
  def __init__(self):
    self.app_root = os.path.dirname(__file__)
    self.templates_root = os.path.join(self.app_root, 'templates')
    self.render = web.template.render(self.templates_root)
     
 
  def GET(self):
    #獲取輸入?yún)?shù)
    data = web.input()
    signature=data.signature
    timestamp=data.timestamp
    nonce=data.nonce
    echostr=data.echostr
    #自己的token
    token="weixin9047" #這里改寫(xiě)你在微信公眾平臺(tái)里輸入的token
    #字典序排序
    list=[token,timestamp,nonce]
    list.sort()
    sha1=hashlib.sha1()
    map(sha1.update,list)
    hashcode=sha1.hexdigest()
    #sha1加密算法    
    #如果是來(lái)自微信的請(qǐng)求，則回復(fù)echostr
    if hashcode == signature:
      return echostr
     
 
     
  def POST(self):    
    str_xml = web.data() #獲得post來(lái)的數(shù)據(jù)
    xml = etree.fromstring(str_xml)#進(jìn)行XML解析
    content=xml.find("Content").text#獲得用戶(hù)所輸入的內(nèi)容
    msgType=xml.find("MsgType").text
    fromUser=xml.find("FromUserName").text
    toUser=xml.find("ToUserName").text
    if(content == u"天氣"):
      url = "http://m.ip138.com/21/nanjing/tianqi/"
      headers = {
        'Connection': 'Keep-Alive',
        'Accept': 'text/html, application/xhtml+xml, */*',
        'Accept-Language': 'en-US,en;q=0.8,zh-Hans-CN;q=0.5,zh-Hans;q=0.3',
        'User-Agent': 'Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; rv:11.0) like Gecko'}
      req = urllib2.Request(url, headers = headers)
      opener = urllib2.urlopen(req)
      html = opener.read()
      rex = r'(?<=img src="/image/s[0-9].gif" alt=").{1,6}(?=" />)'
      rexx = r'(?<=div class="temperature">).{5,15}(?=