/// <summary>
/// 解密消息
/// </summary>
/// <returns>返回解密之后的消息</returns>
private string DecryptMessage(string content)
{
string msg = "";
XmlDocument doc = new XmlDocument();
doc.LoadXml(content);
XmlNode root = doc.FirstChild;
string userName = root["ToUserName"].InnerText;
AccountInfo account = AccountInfoCollection.GetAccountInfo(userName);
if (account == null)
{
return(msg);
}
WXBizMsgCrypt wxcpt = new WXBizMsgCrypt(account.Token, account.EncodingAESKey, account.AppId);
string msg_signature = RequestEx.TryGetQueryString("msg_signature", "", request);
string timestamp = RequestEx.TryGetQueryString("timestamp", "", request);
string nonce = RequestEx.TryGetQueryString("nonce", "", request);
wxcpt.DecryptMsg(msg_signature, timestamp, nonce, content, ref msg);
return(msg);
}
///// <summary>
///// 构造函数
///// </summary>
///// <param name="request">HTTP请求</param>
//public string RequestMessageHelper(HttpRequest request)
//{
// this.request = request;
// //获取请求体内容
// string content = Utility.GetRequestContent(request);
// //获取消息加密类型
// encryptType = GetEncryptType();
// //如果已加密，解密消息
// string rawContent;
// if (encryptType == MessageEncryptTypeEnum.aes)
// rawContent = DecryptMessage(content);
// else
// rawContent = content;
// return rawContent;
//}
/// <summary>
/// 得到消息加密类型
/// </summary>
/// <returns>返回消息加密类型</returns>
private MessageEncryptTypeEnum GetEncryptType()
{
string encrypt_type = RequestEx.TryGetQueryString("encrypt_type", MessageEncryptTypeEnum.raw.ToString("g"), request);
return((MessageEncryptTypeEnum)Enum.Parse(typeof(MessageEncryptTypeEnum), encrypt_type, true));
}
