public void ProcessRequest(HttpContext context)
{
con = context;
con.Response.ContentType = "text/plain";
signature = context.Request.QueryString["signature"] ?? "";
timestamp = context.Request.QueryString["timestamp"] ?? "";
nonce = context.Request.QueryString["nonce"] ?? "";
echoStr = context.Request.QueryString["echoStr"];
#region 认证判断
string[] tempArr = new[] {timestamp,nonce,Common.WeChatAppInfo.Token };
tempArr = tempArr.OrderBy(item => item).ToArray();
string tempStr = string.Join("",tempArr);
string tempSha1Str = WeChatHelper.GetSHA1EnryptStr(tempStr);
if (tempSha1Str != signature) {
con.Response.Write("无验证请求");
con.Response.End();
return;
}
if (!string.IsNullOrEmpty(echoStr))
{
context.Response.Write(echoStr);
context.Response.End();
return;
}
#endregion
// WeChatCrypt = Tencent.WXBizMsgCrypt(WeChatAppInfo.Token, WeChatAppInfo.sEncodingAESKey, WeChatAppInfo.AppID);
string requestContent = System.Text.Encoding.UTF8.GetString(context.Request.BinaryRead(context.Request.TotalBytes));
int ret = 0;
string sMsg = ""; //解析之后的明文
ret = Tencent.WXBizMsgCrypt.DecryptMsg(signature, timestamp, nonce, requestContent, ref sMsg);
if (ret != 0)
{
context.Response.Write("无效请求");
context.Response.End();
return;
}
XmlDocument doc = new XmlDocument();
doc.LoadXml(sMsg);
if(doc.FirstChild["MsgId"]!=null)
{
if (!IsUniqueMsg(doc.FirstChild["MsgId"].InnerText))
{
context.Response.End();
return;
}
}
ReceiveData(doc);
}