/// <summary>
/// 发送微信信息,回复用户
/// </summary>
/// <param name="context"></param>
/// <param name="toKen">微信账号toKen</param>
/// <param name="GetData">回调函数,取回\回复给用户的消息内容</param>
/// <param name="errorDescription"></param>
public static bool Handle(HttpContext context, string toKen, DelegateGetData GetData, ref string errorDescription)
{
errorDescription = "";
#region 验证请求的信息是否来自微信服务器
bool sucessed = ValidSignature(context, toKen, ref errorDescription);
if (!sucessed)
{
//context.Response.End(); //[shove]
return(false);
}
#endregion
#region 获取微信请求的内容
Stream stream = null;//[shove] context.Request.InputStream;
if (stream.Length < 1)
{
//errorDescription = "请求内容为空，无法解析。";
//HttpContext.Current.Response.End();
//return false;
context.Response.WriteAsync(context.Request.Query["echoStr"]);
//[shove] context.Response.End();
return(true);
}
string requestContent = "";
byte[] b = new byte[stream.Length];
stream.Read(b, 0, (int)stream.Length);
requestContent = Encoding.UTF8.GetString(b);
if (string.IsNullOrEmpty(requestContent))
{
//errorDescription = "请求内容为空，无法解析。";
//HttpContext.Current.Response.End();
//return false;
context.Response.WriteAsync(context.Request.Query["echoStr"]);
//[shove] context.Response.End();
return(true);
}
#endregion
#region 分析微信请求的内容
string FromUserName = "", ToUserName = "", Conten = "", MsgType = "";
DateTime createTime;
Message requestMessage = new Message();
XmlDocument doc = new XmlDocument();
try
{
doc.LoadXml(requestContent);
XmlNodeList list = doc.GetElementsByTagName("xml");
XmlNode xn = list[0];
FromUserName = xn.SelectSingleNode("//FromUserName").InnerText;
ToUserName = xn.SelectSingleNode("//ToUserName").InnerText;
MsgType = xn.SelectSingleNode("//MsgType").InnerText;
string Time = xn.SelectSingleNode("//CreateTime").InnerText;
DateTime dtStart = TimeZoneInfo.ConvertTime(new DateTime(1970, 1, 1), TimeZoneInfo.Local);
long lTime = long.Parse(xn.SelectSingleNode("//CreateTime").InnerText + "0000000");
TimeSpan toNow = new TimeSpan(lTime);
createTime = dtStart.Add(toNow);
// 判断用户点击了菜单栏还是自己发送的信息
if (MsgType.ToLower().Equals("event")) //用户点击菜单
{
string Event = xn.SelectSingleNode("//Event").InnerText.ToLower();
string Ticket = "";//获取二维码Ticket;
//上报地理位置事件
if (Event.Equals("location"))
{
string _Latitude = xn.SelectSingleNode("//Latitude").InnerText;
string _Longitude = xn.SelectSingleNode("//Longitude").InnerText;
string _Precision = xn.SelectSingleNode("//Precision").InnerText;
requestMessage = new RepuestGeographicalPositionmMessage
(Event, _Latitude, _Longitude, _Precision, FromUserName, ToUserName, createTime, MsgType);
}
else if (Event.ToUpper().Equals("MASSSENDJOBFINISH"))//群发失败信息返回
{
string _MsgID = xn.SelectSingleNode("//MsgID").InnerText;
string _Status = xn.SelectSingleNode("//Status").InnerText;
string _TotalCount = xn.SelectSingleNode("//TotalCount").InnerText;
string _FilterCount = xn.SelectSingleNode("//FilterCount ").InnerText;
long _SentCount = Shove.Convert.StrToLong(xn.SelectSingleNode("//SentCount").InnerText, -1);
long _ErrorCount = Shove.Convert.StrToLong(xn.SelectSingleNode("//ErrorCount").InnerText, -1);
requestMessage = new RequestSendFinishMessage(_MsgID, _Status, _TotalCount, _FilterCount, _SentCount, _ErrorCount);
}
else//事假推送
{
string EventKey = xn.SelectSingleNode("//EventKey").InnerText;
//是否是从二维码扫描关注
if (EventKey.IndexOf("qrscene") >= 0)
{
Ticket = EventKey.Split('_')[1];
}
requestMessage = new RequestEventMessage(Event, EventKey, Ticket, FromUserName, ToUserName, createTime, MsgType);
}
}
else if (MsgType.ToLower().Equals("image")) //微信用户发来的图片
{
string Url = xn.SelectSingleNode("//PicUrl").InnerText;
string MsgId = xn.SelectSingleNode("//MsgId").InnerText;
string MediaId = xn.SelectSingleNode("//MediaId").InnerText;//图片ID
requestMessage = new RequestImageMessage(Url, MsgId, MediaId, FromUserName, ToUserName, createTime, MsgType);
}
else if (MsgType.ToLower().Equals("link")) // 微信用户发来的链接
{
string title = xn.SelectSingleNode("//Title").InnerText;
string Description = xn.SelectSingleNode("//Description").InnerText;
string Url = xn.SelectSingleNode("//Url ").InnerText;
string MsgId = xn.SelectSingleNode("//MsgId").InnerText;
requestMessage = new RequestLinkMessage(title, Description, Url, MsgId, FromUserName, ToUserName, createTime, MsgType);
}
else if (MsgType.ToLower().Equals("text")) // 消息文本
{
Conten = xn.SelectSingleNode("//Content").InnerText; //文本
requestMessage = new RequestTextMessage(Conten, FromUserName, ToUserName, createTime, MsgType);
}
else if (MsgType.ToLower().Equals("location")) // 地理位置
{
string Location_X = xn.SelectSingleNode("//Location_X").InnerText; // 纬度
string Location_Y = xn.SelectSingleNode("//Location_Y").InnerText; // 经度
string Scale = xn.SelectSingleNode("//Scale").InnerText; // 地图缩放大小
string Label = xn.SelectSingleNode("//Label").InnerText; // 地理消息位置
string MsgId = xn.SelectSingleNode("//MsgId").InnerText;
requestMessage = new RequestLocationMessage(Location_X, Location_Y, Scale, Label, MsgId, FromUserName, ToUserName, createTime, MsgType);
}
else if (MsgType.ToLower().Equals("video")) //视频类型
{
string MediaId = xn.SelectSingleNode("//MediaId").InnerText; // 视频消息媒体id，可以调用多媒体文件下载接口拉取数据。
string ThumbMediaId = xn.SelectSingleNode("//ThumbMediaId").InnerText; // 视频消息缩略图的媒体id，可以调用多媒体文件下载接口拉取数据。
string MsgId = xn.SelectSingleNode("//MsgId").InnerText; //
requestMessage = new RequestVideoMessage(MediaId, ThumbMediaId, MsgId, FromUserName, ToUserName, createTime, MsgType);
}
else if (MsgType.ToLower().Equals("voice")) //声音类型
{
string MediaId = xn.SelectSingleNode("//MediaId").InnerText; // 语音消息媒体id，可以调用多媒体文件下载接口拉取数据。
string Format = xn.SelectSingleNode("//Format").InnerText; // 语音格式，如amr，speex等
string MsgId = xn.SelectSingleNode("//MsgId").InnerText; // 消息ID;
string Recognition = xn.SelectSingleNode("//Recognition").InnerText.ToString(); //语音识别结果,utf-8编码
requestMessage = new RequestVoiceMessage(MediaId, Format, MsgId, Recognition, FromUserName, ToUserName, createTime, MsgType);
}
else
{
errorDescription = "请求内容无法解析类型。";
//[shove] context.Response.End();
return(false);
}
}
catch (Exception e)
{
errorDescription = "请求内容格式错误，无法解析：" + e.Message;
//[shove] context.Response.End();
return(false);
}
#endregion
#region 由应用程序返回消息内容
List <Message> replyMessages = GetData(requestMessage, MsgType, ref errorDescription);
if ((replyMessages == null) || (replyMessages.Count < 1))
{
//[shove] context.Response.End();
return(true);
}
#endregion
#region 构建回复消息，并返回给微信服务器
StringBuilder reply = new StringBuilder();
reply.Append("<xml>");
reply.Append("<ToUserName><![CDATA[" + FromUserName + "]]></ToUserName>");
reply.Append("<FromUserName><![CDATA[" + ToUserName + "]]></FromUserName>");
reply.Append("<CreateTime><![CDATA[" + DateTime.Now.Ticks.ToString() + "]]></CreateTime>");
reply.Append("<MsgType><![CDATA[" + replyMessages[0].MsgType + "]]></MsgType>");
for (int i = 0; i < replyMessages.Count; i++)
{
if (replyMessages[i] is TextMessage)
{
TextMessage message = replyMessages[i] as TextMessage;
int len = Shove.String.GetLength(message.Content);
if (len > 2048)
{
errorDescription = "文本内容字节长度不能超过 2048。";
//[shove] context.Response.End();
return(false);
}
reply.Append("<Content><![CDATA[" + message.Content + "]]></Content>");
}
else if (replyMessages[i] is ImageTextMessage)
{
ImageTextMessage message = replyMessages[i] as ImageTextMessage;
string Ext = System.IO.Path.GetExtension(message.PicUrl).ToLower();
if (!Ext.Equals(".png") && !Ext.Equals(".jpg"))
{
errorDescription = "图片格式不正确,只能是：jpg、png。";
//[shove] context.Response.End();
return(false);
}
if (System.Convert.ToInt32(message.ArticleCount) > 10 || replyMessages.Count > 10)
{
errorDescription = "图文信息超出 10 条限制。";
//[shove] context.Response.End();
return(false);
}
if (i == 0)
{
reply.Append("<ArticleCount>" + message.ArticleCount + "</ArticleCount>");
reply.Append("<Articles>");
}
reply.Append("<item>");
reply.Append("<Title><![CDATA[" + message.Title + "]]></Title>");
reply.Append("<Description><![CDATA[" + message.Description + "]]></Description>");
reply.Append("<PicUrl><![CDATA[" + message.PicUrl + "]]></PicUrl>");
reply.Append("<Url><![CDATA[" + message.Url + "]]></Url>");
reply.Append("</item>");
if (i == replyMessages.Count - 1)
{
reply.Append("</Articles>");
}
}
else if (replyMessages[i] is MusicMessage)
{
MusicMessage message = replyMessages[i] as MusicMessage;
reply.Append("<Music>");
reply.Append("<Title><![CDATA[" + message.Title + "]]></Title>");
reply.Append("<Description><![CDATA[" + message.Description + "]]></Description>");
reply.Append("<MusicUrl><![CDATA[" + message.MusicUrl + "]]></MusicUrl>");
reply.Append("<HQMusicUrl><![CDATA[" + message.HQMusicUrl + "]]></HQMusicUrl>");
reply.Append("</Music>");
}
else if (replyMessages[i] is VoiceMessage)
{
VoiceMessage Voice = replyMessages[i] as VoiceMessage;
if (string.IsNullOrEmpty(Voice.MediaId))
{
errorDescription = "音频媒体ID为空,";
//[shove] context.Response.End();
return(false);
}
reply.Append("<Voice>");
reply.Append("<MediaId><![CDATA[" + Voice.MediaId + "]]></MediaId>");
reply.Append("</Voice>");
}
else if (replyMessages[i] is VideoMessage)
{
VideoMessage Video = replyMessages[i] as VideoMessage;
if (string.IsNullOrEmpty(Video.MediaId))
{
errorDescription = "视频媒体ID为空,";
//[shove] context.Response.End();
return(false);
}
reply.Append("<Video>");
reply.Append("<MediaId><![CDATA[" + Video.MediaId + "]]></MediaId>");
reply.Append("<Title><![CDATA[" + Video.Title + "]]></Title>");
reply.Append("<Description><![CDATA[" + Video.Description + "]]></Description>");
reply.Append("</Video>");
}
else if (replyMessages[i] is CustomerServiceMessage)
{
}
else
{
errorDescription = "暂不支持回复此类型的消息。";
//[shove] context.Response.End();
return(false);
}
}
reply.Append("</xml>");
context.Response.WriteAsync(reply.ToString());
#endregion
return(true);
}