/// <summary>
/// 验签
/// </summary>
/// <param name="initStr"></param>
/// <param name="sign"></param>
/// <param name="pubKey"></param>
/// <returns></returns>
public static bool VerifySign(string initStr, string sign, string pubKey)
{
RSASig sig = new RSASig();
sig.setPublicKey(pubKey);
return(sig.verifySigature(sign, initStr));
}
public void PayServicemethod()
{
try
{
string signString = Request.QueryString["SIGN"].Trim();
//本地Key值
string pubKey = ConfigurationManager.AppSettings["PublicKey"].ToString().Trim();
//签名源串
string initString = "POSID=" + Request.QueryString["POSID"].Trim()
+ "&BRANCHID=" + Request.QueryString["BRANCHID"].Trim()
+ "&ORDERID=" + Request.QueryString["ORDERID"].Trim()
+ "&PAYMENT=" + Request.QueryString["PAYMENT"].Trim()
+ "&CURCODE=" + Request.QueryString["CURCODE"].Trim()
+ "&REMARK1=" + Request.QueryString["REMARK1"].Trim()
+ "&REMARK2=" + Request.QueryString["REMARK2"].Trim()
+ "&ACC_TYPE=" + Request.QueryString["ACC_TYPE"]
+ "&SUCCESS=" + Request.QueryString["SUCCESS"].Trim()
+ "&TYPE=" + Request.QueryString["TYPE"].Trim()
+ "&REFERER=" + Request.QueryString["REFERER"].Trim()
+ "&CLIENTIP=" + Request.QueryString["CLIENTIP"].Trim()
+ "&ACCDATE=" + Request.QueryString["ACCDATE"].Trim();
RSASig sign = new RSASig();
sign.setPublicKey(pubKey);
bool result = sign.verifySigature(signString, initString);
if (true == result)//验证成功
{
Console.WriteLine("RSA verified!");
}
else//验证失败
{
Console.WriteLine("RSA not verified!");
}
}
catch (Exception ex)
{
////写文本，纪录中国建设银行返回消息，比对md5计算结果（如网站不支持写txt文件，可改成写数据库）
string TOEXCELLR = Request.Url.ToString() + " " + ex.Message.ToString() + Request.UserHostName.Trim();
StreamWriter fs = new StreamWriter(Server.MapPath("Return_DATA/" + "m" + DateTime.Now.ToString().Replace(":", "")) + ".txt", false, System.Text.Encoding.Default);
fs.Write(TOEXCELLR);
fs.Close();
}
}
public void ProcessRequest(HttpContext context)
{
string requestParmas = string.Empty;
string content = string.Empty;
try
{
logger.Info("----------------建设银行龙支付回调开始---------------------");
var requestDictionary = new Dictionary <string, object>();
logger.Info(JsonConvert.SerializeObject(context.Request.QueryString));//打印参数顺序
var SignString = new StringBuilder();
foreach (string key in context.Request.QueryString.Keys)
{
requestDictionary.Add(key, context.Request.QueryString[key]);
}
requestParmas = JsonConvert.SerializeObject(requestDictionary);//打印参数
logger.Info("请求参数:" + requestParmas);
//拼接签名字符串
SignString.AppendFormat("POSID={0}&", context.Request.QueryString["POSID"]);
SignString.AppendFormat("BRANCHID={0}&", context.Request.QueryString["BRANCHID"]);
SignString.AppendFormat("ORDERID={0}&", context.Request.QueryString["ORDERID"]);
SignString.AppendFormat("PAYMENT={0}&", context.Request.QueryString["PAYMENT"]);
SignString.AppendFormat("CURCODE={0}&", context.Request.QueryString["CURCODE"]);
SignString.AppendFormat("REMARK1={0}&", context.Request.QueryString["REMARK1"]);
SignString.AppendFormat("REMARK2={0}&", context.Request.QueryString["REMARK2"]);
if (context.Request.QueryString["ACC_TYPE"] != null)
{
SignString.AppendFormat("ACC_TYPE={0}&", context.Request.QueryString["ACC_TYPE"]);
}
SignString.AppendFormat("SUCCESS={0}&", context.Request.QueryString["SUCCESS"]);
SignString.AppendFormat("TYPE={0}&", context.Request.QueryString["TYPE"]);
SignString.AppendFormat("REFERER={0}&", context.Request.QueryString["REFERER"]);
SignString.AppendFormat("CLIENTIP={0}&", context.Request.QueryString["CLIENTIP"]);
if (context.Request.QueryString["DISCOUNT"] != null)
{
SignString.AppendFormat("DISCOUNT={0}&", context.Request.QueryString["DISCOUNT"]);
}
string signString = SignString.ToString().TrimEnd('&');
logger.Info("参与数字签名的字符串:" + signString);
string pubKey = GetPubkey().Trim();//获取pubKey
logger.Info("pubKey:" + pubKey);
string oldSign = context.Request.QueryString["SIGN"];
logger.Info("原签名:" + oldSign);
//开始签名
RSASig sign = new RSASig();
sign.setPublicKey(pubKey);
bool result = sign.verifySigature(oldSign, signString);
if (result)
{
logger.Info("签名验证成功");
bool iState = false;
if (context.Request.QueryString["SUCCESS"] == "Y")
{//支付成功
logger.Info("支付成功");
iState = true;
}
else
{//支付失败
logger.Info("支付失败");
iState = false;
}
decimal total_amount = Convert.ToDecimal(requestDictionary["PAYMENT"]) * 100;
bool res = ApiHelper.WxPayNotifyHandle(requestDictionary["ORDERID"].ToString(), //商户订单号
iState, //支付状态
string.Empty, //支付宝交易号
total_amount.ToString(), //本次交易支付的订单金额
string.Empty,
logger);
if (res)
{
//返回处理成功页面
StreamReader sr = new StreamReader(AppDomain.CurrentDomain.BaseDirectory + "JSYHServer\\html\\success.html", System.Text.Encoding.GetEncoding("utf-8"));
content = sr.ReadToEnd().ToString();
sr.Close();
}
else
{
//返回处理失败页面
StreamReader sr = new StreamReader(AppDomain.CurrentDomain.BaseDirectory + "JSYHServer\\html\\error.html", System.Text.Encoding.GetEncoding("utf-8"));
content = sr.ReadToEnd().ToString();
sr.Close();
}
}
else
{
logger.Info("签名验证失败");
//返回处理失败页面
StreamReader sr = new StreamReader(AppDomain.CurrentDomain.BaseDirectory + "JSYHServer\\html\\error.html", System.Text.Encoding.GetEncoding("utf-8"));
content = sr.ReadToEnd().ToString();
sr.Close();
}
context.Response.Clear();
context.Response.Write(content);
}
catch (Exception ex)
{
logger.Info("----------------龙支付回调异常---------------------");
logger.Info("异常错误信息：" + ex.Message);
logger.Fatal("异常错误信息：" + ex.Message, ex);
//返回处理失败页面
StreamReader sr = new StreamReader(AppDomain.CurrentDomain.BaseDirectory + "JSYHServer\\html\\error.html", System.Text.Encoding.GetEncoding("utf-8"));
content = sr.ReadToEnd().ToString();
sr.Close();
context.Response.Clear();
context.Response.Write(content);
}
}