package?com.duowan.yymobilegame.controller.wechat;

import?java.io.IOException;
import?java.io.InputStream;
import?java.io.PrintWriter;
import?java.security.MessageDigest;
import?java.security.NoSuchAlgorithmException;
import?java.util.Arrays;
import?java.util.List;

import?javax.servlet.http.HttpServletRequest;
import?javax.servlet.http.HttpServletResponse;
import?javax.xml.parsers.DocumentBuilder;
import?javax.xml.parsers.DocumentBuilderFactory;

import?org.apache.commons.logging.Log;
import?org.apache.commons.logging.LogFactory;
import?org.springframework.beans.factory.annotation.Autowired;
import?org.springframework.stereotype.Controller;
import?org.springframework.web.bind.annotation.RequestMapping;
import?org.w3c.dom.Document;
import?org.w3c.dom.Element;
import?org.w3c.dom.Node;
import?org.w3c.dom.NodeList;

import?com.duowan.yymobilegame.exception.YymobilegameException;
import?com.duowan.yymobilegame.model.GTextInfo;
import?com.duowan.yymobilegame.model.WeChatReceiveMsg;
import?com.duowan.yymobilegame.service.GTextInfoService;

/**
?*?微信設置控制器
?*?@author?Administrator
?*
?*/
@RequestMapping（“/client“）
@Controller
public?class?WeChatController{

	private?static?final?Log?log?=?LogFactory.getLog（WeChatController.class）;
	public?final?String?TOKEN?=?“ziqiangbuxi“;
	private?final?String?SUBSCRIBE_EVENT?=?“subscribe“;//訂閱事件
	private?final?String?MENU_CLICK_EVENT?=?“CLICK“;
	@Autowired
	private?GTextInfoService?gTextInfoService;//圖文信息服務
	/**
	?*?驗證微信URL的合法性，申請開發(fā)者模式
	?*?@param?request
	?*?@param?response
	?*?@throws?IOException?
	?*/
	@RequestMapping（“/valid.do“）
	public?void?weChatService（HttpServletRequest?request?HttpServletResponse?response?InputStream?is）?throws?IOException{
		String?method?=?request.getMethod（）;
		if（method.equals（“GET“））{
			valid（request?response）;
		}else{
			doPost1（request?response?is）;
		}
		
	}
	
	/**
	?*?微信服務器驗證
	?*?@param?request
	?*?@param?response
	?*/
	private?void?valid（HttpServletRequest?request?HttpServletResponse?response）{
		String?signature?=?request.getParameter（“signature“）;//微信加密簽名，signature結合了開發(fā)者填寫的token參數(shù)和請求中的timestamp參數(shù)、nonce參數(shù)。
		String?timestamp?=?request.getParameter（“timestamp“）;//時間戳
		String?nonce?=?request.getParameter（“nonce“）;//隨機數(shù)
		String?echostr?=?request.getParameter（“echostr“）;//隨機字符串
		
		try?{
			boolean?result?=??checkSignature（signature?timestamp?nonce?TOKEN）;
			if（result?==?true）{
				PrintWriter?pw?=?response.getWriter（）;
				pw.write（echostr）;
			}
		}catch?（Exception?e）?{
			log.error（e.getMessage（）?e）;
		}
	}
	
	/**
	?*?響應微信發(fā)來的消息
	?*?@param?request
	?*?@param?response
	?*/
	private?void?doPost1（HttpServletRequest?request?HttpServletResponse?response?InputStream?is）{
		try?{
			WeChatReceiveMsg?msg?=?getMsg（is）;
			String?msgType?=?msg.getMsgType（）;//獲得信息類型
			if（msgType?==?null?||?msgType.length（）?==?0）
				throw?new?YymobilegameException（“----------公眾平臺服務器返回的信息不實標準格式，請檢查!-