python 微信企业号-回调模式接收微信端客户端发送消息并被动返回消息

说明：此代码用于接收手机微信端发送的消息
#-*- coding:utf-8 -*-
from flask import Flask,request
from WXBizMsgCrypt import WXBizMsgCrypt
import xml.etree.cElementTree as ET
import sys
app = Flask(__name__)
@app.route(‘/index‘,methods=[‘GET‘,‘POST‘])
def index():
        sToken = ‘Uxxxx‘
        sEncodingAESKey = ‘U2xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx‘
        sCorpID = ‘wx1xxxxxxxxxxxxx‘
        wxcpt=WXBizMsgCrypt(sToken,sEncodingAESKey,sCorpID)
        #获取url验证时微信发送的相关参数
        sVerifyMsgSig=request.args.get(‘msg_signature‘)
        sVerifyTimeStamp=request.args.get(‘timestamp‘)
        sVerifyNonce=request.args.get(‘nonce‘)
        sVerifyEchoStr=request.args.get(‘echostr‘)
        #
        sReqMsgSig = sVerifyMsgSig
        sReqTimeStamp = sVerifyTimeStamp
        sReqNonce = sVerifyNonce
        #
        sResqMsgSig = sVerifyMsgSig
        sResqTimeStamp = sVerifyTimeStamp
        sResqNonce = sVerifyNonce
        #验证url
        if request.method == ‘GET‘:
                ret,sEchoStr=wxcpt.VerifyURL(sVerifyMsgSig, sVerifyTimeStamp,sVerifyNonce,sVerifyEchoStr)
                print type(ret)
                print type(sEchoStr)
                if (ret != 0 ):
                        print "ERR: VerifyURL ret:" + ret
                        sys.exit(1)
                return sEchoStr
        #接收客户端消息
        if request.method == ‘POST‘:
                #sReqMsgSig = request.form.get(‘msg_signature‘)
                #sReqTimeStamp = request.form.get(‘timestamp‘)
                #sReqNonce = request.form.get(‘nonce‘)
                #赋值url验证请求相同的参数，使用上面注释掉的request.form.get方式获取时，测试有问题
                        sReqMsgSig = sVerifyMsgSig    
                        sReqTimeStamp = sVerifyTimeStamp
                        sReqNonce = sVerifyNonce
                sReqData = request.data
                print sReqData
                ret,sMsg=wxcpt.DecryptMsg( sReqData, sReqMsgSig, sReqTimeStamp, sReqNonce)
                if (ret != 0):
                        print "ERR: VerifyURL ret:"
                        sys.exit(1)
                #解析发送的内容并打印           
                xml_tree = ET.fromstring(sMsg)
                content = xml_tree.find("Content").text
                print content
        #被动响应消息，将微信端发送的消息返回给微信端
        sRespData = ‘‘‘<xml>
                        <ToUserName><![CDATA[mycreate]]></ToUserName>
                        <FromUserName><![CDATA[wx177d1233ab4b730b]]></FromUserName>
                        <CreateTime>1348831860</CreateTime>
                        <MsgType><![CDATA[text]]></MsgType>
                        <Content><![CDATA[‘‘‘ +content +‘‘‘]]></Content>
                        <MsgId>1234567890123456</MsgId>
                        <AgentID>1</AgentID>
                        </xml>‘‘‘
        ret,sEncryptMsg=wxcpt.EncryptMsg(sRespData, sReqNonce, sReqTimeStamp)
        if( ret!=0 ):
                print "ERR: EncryptMsg ret: " + ret
                sys.exit(1)
        return sEncryptMsg
if __name__ == ‘__main__‘:
        app.run(host=‘0.0.0.0‘,port=6000,debug=True)

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