/// <summary>
/// 执行消息回复
/// </summary>
/// <param name="MessageHandler"></param>
/// <returns></returns>
public string Excute()
{
var Request = HttpContext.Current.Request;
string signature = Request["signature"];
string timestamp = Request["timestamp"];
string nonce = Request["nonce"];
string echostr = Request["echostr"];
string encrypt_type = Request["encrypt_type"]; // aes 是安全模式。 null是明文模式
string msg_signature = Request["msg_signature"]; //消息加密后 会有这个参数
//解加密类
Utils.Tencent.WXBizMsgCrypt wxcpt = new Utils.Tencent.WXBizMsgCrypt(_token, _EncodingAESKey, _appId);
//获取xml
Stream xmlStream = Request.InputStream;
string postData = "";
using (StreamReader sr = new StreamReader(xmlStream))
{
postData = sr.ReadToEnd();
}
//收到的消息
ReceiveMessage receiveMsg = null;
//是否安全模式？
if (encrypt_type == "aes")
{
string str = "";
int i = wxcpt.DecryptMsg(msg_signature, timestamp, nonce, postData, ref str);
if (i == 0)
{
receiveMsg = XMLHelper.XMLDeserializer <ReceiveMessage>(new MemoryStream(Encoding.UTF8.GetBytes(str)));
}
}
else
{
receiveMsg = XMLHelper.XMLDeserializer <ReceiveMessage>(new MemoryStream(Encoding.UTF8.GetBytes(postData)));
}
//避免重复接受
if (receiveMsg.MsgId != null)
{
if (CacheHelper.GetCache(receiveMsg.MsgId) != null)
{
return("");
}
CacheHelper.SetCache(receiveMsg.FromUserName + receiveMsg.CreateTime, "xx", new TimeSpan(0, 0, 1, 0));
}
//执行MessageHandler
ReplyBaseMessage replyMsg = ExcuteMessageHandler(receiveMsg);
if (replyMsg == null)
{
return("");
}
//是否安全模式？
if (encrypt_type == "aes")
{
string relMsg = XMLHelper.XMLSerializer <ReplyBaseMessage>(replyMsg);
string EncryptMsg = "";
//加密
wxcpt.EncryptMsg(relMsg, timestamp, nonce, ref EncryptMsg);
return(EncryptMsg);
}
else
{
return(XMLHelper.XMLSerializer <ReplyBaseMessage>(replyMsg));
}
}
private ReplyBaseMessage ExcuteMessageHandler(ReceiveMessage ReceiveMessage)
{
ReplyBaseMessage Reply = null;
switch (ReceiveMessage.MsgType)
{
case "text":
Reply = _MessageHandler.On_TextEvent(ReceiveMessage);
break;
case "image":
Reply = _MessageHandler.On_ImageEvent(ReceiveMessage);
break;
case "voice":
Reply = _MessageHandler.On_VoiceEvent(ReceiveMessage);
break;
case "video":
Reply = _MessageHandler.On_VideoEvent(ReceiveMessage);
break;
case "shortvideo":
Reply = _MessageHandler.On_ShortVideoEvent(ReceiveMessage);
break;
case "location":
Reply = _MessageHandler.On_LocationEvent(ReceiveMessage);
break;
case "link":
Reply = _MessageHandler.On_LinkEvent(ReceiveMessage);
break;
case "event":
switch (ReceiveMessage.Event)
{
case "subscribe":
Reply = _MessageHandler.On_SubscribeEvent(ReceiveMessage);
break;
case "unsubscribe":
Reply = _MessageHandler.On_UnSubscribeEvent(ReceiveMessage);
break;
case "CLICK":
Reply = _MessageHandler.On_CLICKEvent(ReceiveMessage);
break;
case "VIEW":
Reply = _MessageHandler.On_VIEWEvent(ReceiveMessage);
break;
case "scancode_push":
Reply = _MessageHandler.On_Scancode_pushEvent(ReceiveMessage);
break;
case "scancode_waitmsg":
Reply = _MessageHandler.On_Scancode_waitmsgEvent(ReceiveMessage);
break;
case "pic_sysphoto":
Reply = _MessageHandler.On_Pic_sysphotoEvent(ReceiveMessage);
break;
case "pic_photo_or_album":
Reply = _MessageHandler.On_Pic_photo_or_albumEvent(ReceiveMessage);
break;
case "pic_weixin":
Reply = _MessageHandler.On_Pic_weixinEvent(ReceiveMessage);
break;
case "location_select":
Reply = _MessageHandler.On_Location_selectEvent(ReceiveMessage);
break;
default:
Reply = _MessageHandler.On_DefaultEvent(ReceiveMessage);
break;
}
break;
default:
Reply = _MessageHandler.On_DefaultEvent(ReceiveMessage);
break;
}
if (Reply != null)
{
Reply.FromUserName = ReceiveMessage.ToUserName;
Reply.ToUserName = ReceiveMessage.FromUserName;
}
return(Reply);
}
