Python微信企业号开发之回调模式接收微信端客户端发送消息及被动返回消息示例

#-*- coding:utf-8 -*-from flask import Flask,requestfrom WXBizMsgCrypt import WXBizMsgCryptimport xml.etree.cElementTree as ETimport sysapp = 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 sEncryptMsgif __name__ == '__main__':    app.run(host='0.0.0.0',port=6000,debug=True)