/// <summary>
/// 检查签名
/// </summary>
/// <param name="xml"></param>
/// <param name="key"></param>
/// <returns></returns>
public static bool CheckSign(string xml, string key)
{
XElement root = XElement.Parse(xml);
var eles = root.Elements();
string sign = null;
AsciiSortedDictionary <string> keyValues = new AsciiSortedDictionary <string>();
foreach (var item in eles)
{
if (!"sign".Equals(item.Name.LocalName, StringComparison.OrdinalIgnoreCase) && !string.IsNullOrEmpty(item.Value))
{
keyValues.Add(item.Name.LocalName, item.Value);
}
else if ("sign".Equals(item.Name.LocalName, StringComparison.OrdinalIgnoreCase))
{
sign = item.Value;
}
}
StringBuilder builder = new StringBuilder();
keyValues.Aggregate(builder, (b, kv) => b.Append(kv.Key).Append("=").Append(kv.Value).Append("&"));
builder.Append("key=").Append(key);
Debug.WriteLine(builder.ToString());
string mSign = MD5.Encode(builder.ToString());
return(mSign.Equals(sign, StringComparison.OrdinalIgnoreCase));
}
public IGatawayResult Wrap(string bizResult, string code, string message)
{
code = string.IsNullOrEmpty(code) ? "0000" : code;
if (string.IsNullOrEmpty(message) && code != "0000")
{
message = "系统错误";
}
else if (string.IsNullOrEmpty(message) && code == "0000")
{
message = null;
}
Dictionary <string, object> data = new Dictionary <string, object>();
data.Add("retCode", string.IsNullOrEmpty(code) ? (string.IsNullOrEmpty(bizResult) ? "0001" : "0000") : code);
data.Add("retMsg", message);
data.Add("timestamp", (long)(new TimeStamp().Seconds));
data.Add("data", bizResult);
string cipher = null, sign = null;
if (!string.IsNullOrEmpty(bizResult))
{
cipher = Merchant.Encrypt(bizResult);
StringBuilder builder = new StringBuilder();
AsciiSortedDictionary <object> signDictionary = new AsciiSortedDictionary <object>();
data.Aggregate(signDictionary, (d, kv) =>
{
if (kv.Value != null && !string.IsNullOrEmpty(kv.Value.ToString()))
{
d.Add(kv.Key, kv.Value);
}
return(d);
});
signDictionary.Aggregate(builder, (b, kv) => b.Append(kv.Key).Append("=").Append(kv.Value).Append("&"));
sign = Merchant.SignData(builder.Remove(builder.Length - 1, 1).ToString());
}
data["data"] = cipher;
data.Add("sign", sign);
string json = JsonSerializer.JsonSerialize(data);
return(new GatewayResult(json, "application/json"));
}
public FuncResult VerifySignature()
{
IMerchant merchant = GetMerchant();
if (merchant == null)
{
return(FuncResult.FailResult("无效商户号", 400));
}
AsciiSortedDictionary <object> dic = JsonSerializer.Deserializer <AsciiSortedDictionary <object> >(GetRequestOriginalString());
dic.Remove(item => item.Key.Equals("sign", StringComparison.OrdinalIgnoreCase) || item.Value == null || string.IsNullOrEmpty(item.Value.ToString()));
StringBuilder builder = new StringBuilder();
dic.Aggregate(builder, (b, kv) => b.Append(kv.Key).Append("=").Append(kv.Value).Append("&"));
builder.Remove(builder.Length - 1, 1);
bool res = merchant.VerifySignature(builder.ToString(), GetRequestSignature());
return(new FuncResult {
Success = res, Message = "签名验证不正确", StatusCode = 2
});
}
