private bool Verify(HttpRequestBase request, NameValueCollection requestVal, out AliPayReturnModel model)
{
bool result = false;
SortedDictionary <string, string> sortedDic = new SortedDictionary <string, string>();
foreach (var item in requestVal.AllKeys)
{
if (item.ToLower() != "sign" && item.ToLower() != "sign_type" && !string.IsNullOrEmpty(item))
{
sortedDic.Add(item, requestVal[item]);
}
}
string requestSign = requestVal["sign"];
string requestSigntype = requestVal["sign_type"];
string param = CreateURLParamString(sortedDic);
EnumSignType signType = requestSigntype == "MD5" ? EnumSignType.MD5
: requestSigntype == "RSA" ? EnumSignType.RSA
: EnumSignType.MD5;
if (signType == EnumSignType.MD5)
{
string sign = BuildRequestsign(param, signType);
if (requestSign.Equals(sign))
{
result = true;
}
}
else
{
result = RSAFromPkcs8.verify(param, requestSign, AlipayConfig.ALIPay_RSA_ALI_PUBLICKEY, "utf-8");
}
string responseText = GetResponseTxt(requestVal["notify_id"]);
bool resultVal = result && responseText == "true";
if (resultVal)
{
model = new AliPayReturnModel()
{
OutTradeNo = request.Form["out_trade_no"],
TradeNo = request.Form["trade_no"],
TradeStatus = request.Form["trade_status"]
};
decimal total_fee;
decimal.TryParse(request.Form["total_fee"], out total_fee);
model.TotalFee = total_fee;
}
else
{
model = null;
}
return(resultVal);
}
private string BuildRequest(string orderNo, string subject, decimal totalAmt, EnumAliPayType aliPayType, EnumSignType signType = EnumSignType.MD5)
{
SortedDictionary<string, string> dicParam = CreateParam(orderNo, subject, totalAmt, aliPayType);
string urlParam = CreateURLParamString(dicParam, aliPayType);
string sign = HttpUtility.UrlEncode(BuildRequestsign(urlParam, signType), Encoding.UTF8);
dicParam.Add("sign", sign);
dicParam.Add("sign_type", signType.ToString());
if (aliPayType == EnumAliPayType.Mobile)
{
return urlParam + "&sign=\"" + sign + "\"&sign_type=\"" + signType.ToString() + "\"";
}
else
return BuildForm(dicParam);
}
private string BuildRequestsign(string urlParam, EnumSignType signType)
{
string mysign = "";
if (signType == EnumSignType.MD5)
{
string preString = urlParam + AlipayConfig.ALI_KEY;
mysign = MD5Helper.Sign(preString, AlipayConfig.CHARTSET);
}
else if (signType == EnumSignType.RSA)
{
mysign = RSASign(urlParam, AlipayConfig.ALIPay_RSA_PRIVATEKEY, AlipayConfig.CHARTSET);
}
return(mysign);
}
public string BuildWebPay(string orderNo, string subject, decimal payAmount, EnumSignType signType = EnumSignType.MD5)
{
return this.BuildRequest(orderNo, subject, payAmount, EnumAliPayType.Website, signType);
}
private string BuildRequestsign(string urlParam, EnumSignType signType)
{
string mysign = "";
if (signType == EnumSignType.MD5)
mysign = MD5Sign(urlParam, Config.ALI_KEY, Config.CHARTSET);
else if (signType == EnumSignType.RSA)
mysign = RSASign(urlParam, Config.ALIPay_RSA_PRIVATEKEY, Config.CHARTSET);
return mysign;
}
public string BuildMobilePay(string orderNo, string subject, decimal payAmount, EnumSignType signType = EnumSignType.RSA)
{
return this.BuildRequest(orderNo, subject, payAmount, EnumAliPayType.Mobile, signType);
}
private string BuildRequestsign(string urlParam, EnumSignType signType)
{
string mysign = "";
if (signType == EnumSignType.MD5)
{
string preString = urlParam + AlipayConfig.ALI_KEY;
mysign = MD5Helper.Sign(preString, AlipayConfig.CHARTSET);
}
else if (signType == EnumSignType.RSA)
mysign = RSASign(urlParam, AlipayConfig.ALIPay_RSA_PRIVATEKEY, AlipayConfig.CHARTSET);
return mysign;
}
