/// <summary>
/// 执行处理函数
/// </summary>
/// <typeparam name="T">接受类型</typeparam>
/// <param name="xmlStr">XML字符串</param>
/// <returns></returns>
private async Task <Tuple <ToMessageBase, IFromMessage> > ExecuteHandler <T>(string xmlStr)
where T : class, IFromMessage
{
ToMessageBase toMessage = null;
var type = typeof(T);
var handler = serviceProvider.GetService <IWxEventsHandler>();
if (handler == null)
{
throw new WxSdkException($"接收公众号服务端事件消息需要先注册 {nameof(IWxEventsHandler)} ！");
}
IFromMessage fromMessage = XmlHelper.DeserializeObject <T>(xmlStr);
if (fromMessage != null)
{
toMessage = await handler.Execute(fromMessage);
}
else
{
logger.LogWarning($"序列化类型【{type.FullName}】失败");
}
return(new Tuple <ToMessageBase, IFromMessage>(toMessage, fromMessage));
}
/// <summary>
/// 执行处理函数
/// </summary>
/// <typeparam name="T">接受类型</typeparam>
/// <param name="xmlStr">XML字符串</param>
/// <returns></returns>
private async Task <Tuple <ToMessageBase, IFromMessage> > ExcuteHandleFunc <T>(string xmlStr) where T : class, IFromMessage
{
ToMessageBase toMessage = null;
IFromMessage fromMessage = null;
var type = typeof(T);
if (HandleFuncs.ContainsKey(type))
{
fromMessage = XmlHelper.DeserializeObject <T>(xmlStr);
if (fromMessage != null)
{
toMessage = await Task.FromResult(HandleFuncs[type]
.Invoke(fromMessage));
}
else
{
WeChatHelper.LoggerAction?.Invoke(nameof(ServerMessageHandler),
string.Format("序列化类型【{0}】失败", type.FullName));
}
}
else
{
WeChatHelper.LoggerAction?.Invoke(nameof(ServerMessageHandler),
string.Format("没有找到类型为【{0}】的处理函数", type.FullName));
}
return(await Task.FromResult(new Tuple <ToMessageBase, IFromMessage>(toMessage, fromMessage)));
}
/// <summary>
/// 执行
/// </summary>
/// <param name="fromMessage"></param>
/// <returns></returns>
public async Task <ToMessageBase> Execute(IFromMessage fromMessage)
{
if (fromMessage is FromTextMessage)
{
//返回多图文
var toMsg = new ToNewsMessage()
{
Articles = new List <ToNewsMessage.ArticleInfo>()
{
new ToNewsMessage.ArticleInfo()
{
Description = "最简洁最易于使用的微信Sdk，包括公众号Sdk、小程序Sdk、企业微信Sdk等，以及Abp VNext集成。",
PicUrl = "https://www.xin-lai.com/imgs/xinlai-logo_9d2c29c2794e6a173738bf92b056ab69.png",
Title = "Magicodes.Wx.Sdk简介",
Url = "http://xin-lai.com"
}
},
FromUserName = "******",
ToUserName = "******"
};
return(await Task.FromResult(toMsg));
}
else if (fromMessage is FromSubscribeEvent)
{
//返回文本消息
return(await Task.FromResult(new ToTextMessage()
{
Content = "欢迎关注!",
}));
}
else if (fromMessage is FromTextMessage)
{
//返回文本
return(await Task.FromResult(new ToTextMessage()
{
Content = "Test",
}));
}
return(await Task.FromResult(new ToNullMessage()));
}
/// <summary>
/// 处理消息
/// </summary>
/// <param name="xmlStr">XML字符串</param>
/// <returns>The <see cref="Task{ToMessageBase}"/></returns>
public async Task <ToMessageBase> HandleMessage(string xmlStr)
{
ToMessageBase toMessage = null;
logger.LogDebug(Environment.NewLine + xmlStr);
var xmlElement = XElement.Parse(xmlStr);
var msgTypeElement = xmlElement.Element("MsgType");
if (string.IsNullOrWhiteSpace(msgTypeElement?.Value))
{
throw new WxSdkException("消息类型不能为空");
}
var msgType = msgTypeElement.Value.Trim().ToLower();
//接收的消息
IFromMessage fromMessage = null;
//处理结果
Tuple <ToMessageBase, IFromMessage> resulTuple;
//处理事件消息
if (msgType == "event")
{
var fromEventTypeElement = xmlElement.Element("Event");
if (string.IsNullOrWhiteSpace(fromEventTypeElement?.Value))
{
throw new WxSdkException("事件类型不能为空");
}
var fromEvent = fromEventTypeElement.Value.Trim().ToLower();
//记录日志
logger.LogDebug("Event " + fromEvent);
//处理微信服务器事件Key大小写不一致的问题
xmlStr = xmlStr.Replace("<Event><![CDATA[" + fromEventTypeElement.Value + "]]></Event>", "<Event><![CDATA[" + fromEvent + "]]></Event>");
var fromEventType = (FromEventTypes)Enum.Parse(typeof(FromEventTypes), fromEvent);
resulTuple = fromEventType switch
{
FromEventTypes.subscribe => await ExecuteHandler <FromSubscribeEvent>(xmlStr),
FromEventTypes.unsubscribe => await ExecuteHandler <FromUnsubscribeEvent>(xmlStr),
FromEventTypes.scan => await ExecuteHandler <FromScanEvent>(xmlStr),
FromEventTypes.location => await ExecuteHandler <FromLocationEvent>(xmlStr),
FromEventTypes.click => await ExecuteHandler <FromClickEvent>(xmlStr),
FromEventTypes.view => await ExecuteHandler <FromViewEvent>(xmlStr),
FromEventTypes.view_miniprogram => await ExecuteHandler <FromViewMiniprogramEvent>(xmlStr),
FromEventTypes.templatesendjobfinish => await ExecuteHandler <FromTemplateSendJobFinishEvent>(xmlStr),
_ => throw new ArgumentOutOfRangeException(),
};
}
else
{
//记录日志
logger.LogDebug(msgType);
//处理会话消息
var fromMessageType = (FromMessageTypes)Enum.Parse(typeof(FromMessageTypes), msgType);
switch (fromMessageType)
{
case FromMessageTypes.text:
resulTuple = await ExecuteHandler <FromTextMessage>(xmlStr);
break;
case FromMessageTypes.image:
resulTuple = await ExecuteHandler <FromImageMessage>(xmlStr);
break;
case FromMessageTypes.voice:
resulTuple = await ExecuteHandler <FromVoiceMessage>(xmlStr);
break;
case FromMessageTypes.video:
resulTuple = await ExecuteHandler <FromVideoMessage>(xmlStr);
break;
case FromMessageTypes.shortvideo:
resulTuple = await ExecuteHandler <FromShortVideoMessage>(xmlStr);
break;
case FromMessageTypes.location:
resulTuple = await ExecuteHandler <FromLocationMessage>(xmlStr);
break;
case FromMessageTypes.link:
resulTuple = await ExecuteHandler <FromLinkMessage>(xmlStr);
break;
default:
throw new NotSupportedException("暂不支持类型为[" + msgType + "]的消息类型");
}
}
if (resulTuple != null)
{
fromMessage = resulTuple.Item2;
toMessage = resulTuple.Item1;
}
if (toMessage is ToNewsMessage)
{
var news = toMessage as ToNewsMessage;
if (news.Articles.Count > 10)
{
throw new NotSupportedException("图文消息不能超过10条");
}
if (news.Articles.Count == 0)
{
throw new WxSdkException("至少需要包含一条图文消息");
}
news.ArticleCount = news.Articles.Count;
}
if (toMessage is ToNullMessage)
{
return(null);
}
if (toMessage != null && toMessage.CreateTimestamp == default)
{
//设置时间戳
toMessage.CreateTimestamp = toMessage.CreateDateTime.ConvertToTimeStamp();
toMessage.FromUserName = fromMessage.ToUserName;
toMessage.ToUserName = fromMessage.FromUserName;
}
return(await Task.FromResult(toMessage));
}
/// <summary>
/// 处理消息
/// </summary>
/// <param name="xmlStr">XML字符串</param>
public async Task <ToMessageBase> HandleMessage(string xmlStr)
{
ToMessageBase toMessage = null;
//记录日志
WeChatHelper.LoggerAction?.Invoke(nameof(ServerMessageHandler), xmlStr);
var xmlElement = XElement.Parse(xmlStr);
var msgTypeElement = xmlElement.Element("MsgType");
if (string.IsNullOrWhiteSpace(msgTypeElement?.Value))
{
throw new ApiArgumentException("消息类型不能为空");
}
var msgType = msgTypeElement.Value.Trim().ToLower();
//接收的消息
IFromMessage fromMessage = null;
//处理结果
Tuple <ToMessageBase, IFromMessage> resulTuple = null;
//处理事件消息
if (msgType == "event")
{
var fromEventTypeElement = xmlElement.Element("Event");
if (string.IsNullOrWhiteSpace(fromEventTypeElement?.Value))
{
throw new ApiArgumentException("事件类型不能为空");
}
var fromEvent = fromEventTypeElement.Value.Trim().ToLower();
//记录日志
WeChatHelper.LoggerAction?.Invoke(nameof(ServerMessageHandler), "Event " + fromEvent);
var fromEventType = (FromEventTypes)Enum.Parse(typeof(FromEventTypes), fromEvent);
switch (fromEventType)
{
case FromEventTypes.subscribe:
resulTuple = await ExcuteHandleFunc <FromSubscribeEvent>(xmlStr);
break;
case FromEventTypes.unsubscribe:
resulTuple = await ExcuteHandleFunc <FromUnsubscribeEvent>(xmlStr);
break;
case FromEventTypes.scan:
resulTuple = await ExcuteHandleFunc <FromScanEvent>(xmlStr);
break;
case FromEventTypes.location:
resulTuple = await ExcuteHandleFunc <FromLocationEvent>(xmlStr);
break;
case FromEventTypes.click:
resulTuple = await ExcuteHandleFunc <FromClickEvent>(xmlStr);
break;
case FromEventTypes.view:
resulTuple = await ExcuteHandleFunc <FromViewEvent>(xmlStr);
break;
default:
throw new ArgumentOutOfRangeException();
}
}
else
{
//记录日志
WeChatHelper.LoggerAction?.Invoke(nameof(ServerMessageHandler), msgType);
//处理会话消息
var fromMessageType = (FromMessageTypes)Enum.Parse(typeof(FromMessageTypes), msgType);
switch (fromMessageType)
{
case FromMessageTypes.text:
resulTuple = await ExcuteHandleFunc <FromTextMessage>(xmlStr);
break;
case FromMessageTypes.image:
resulTuple = await ExcuteHandleFunc <FromImageMessage>(xmlStr);
break;
case FromMessageTypes.voice:
resulTuple = await ExcuteHandleFunc <FromVoiceMessage>(xmlStr);
break;
case FromMessageTypes.video:
resulTuple = await ExcuteHandleFunc <FromVideoMessage>(xmlStr);
break;
case FromMessageTypes.shortvideo:
resulTuple = await ExcuteHandleFunc <FromShortVideoMessage>(xmlStr);
break;
case FromMessageTypes.location:
resulTuple = await ExcuteHandleFunc <FromLocationMessage>(xmlStr);
break;
case FromMessageTypes.link:
resulTuple = await ExcuteHandleFunc <FromLinkMessage>(xmlStr);
break;
default:
throw new NotSupportedException("暂不支持类型为[" + msgType + "]的消息类型");
}
}
if (resulTuple != null)
{
fromMessage = resulTuple.Item2;
toMessage = resulTuple.Item1;
}
#region 验证多图文格式
if (toMessage is ToNewsMessage)
{
var news = toMessage as ToNewsMessage;
if (news.Articles.Count > 10)
{
throw new NotSupportedException("图文消息不能超过10条");
}
if (news.Articles.Count == 0)
{
throw new ApiArgumentException("至少需要包含一条图文消息");
}
news.ArticleCount = news.Articles.Count;
}
#endregion
#region 设置回复消息的时间戳等内容
if (toMessage != null && toMessage.CreateTimestamp == default(long))
{
//设置时间戳
toMessage.CreateTimestamp = toMessage.CreateDateTime.ConvertToTimeStamp();
toMessage.FromUserName = fromMessage.ToUserName;
toMessage.ToUserName = fromMessage.FromUserName;
}
#endregion
return(await Task.FromResult(toMessage));
}
