/// <summary>
/// 验证Sign参数是否正确
/// </summary>
/// <param name="sign"></param>
/// <returns></returns>
public static bool VerifySign(string notifyXmlStr)
{
//将notifyXmlStr转化为XElement
XElement root = XElement.Parse(notifyXmlStr);
//将参数转化为Dictionary
Dictionary <string, string> parameterDict = root.Elements()
.ToDictionary(x => x.Name.ToString(), x => x.Value);
//参数中不存在sign
if (!parameterDict.Keys.Contains("sign"))
{
return(false);
}
//获取参数中的sign
string originSign = parameterDict["sign"];
//移除参数中的sign
parameterDict.Remove("sign");
//得到parameterDict排序后的SortedDictionary
SortedDictionary <string, string> sortedParameterDict = SortDictionaryConverter.Convert(parameterDict);
//计算得到sign
string caculateSign = SignBulider.Generate(sortedParameterDict, WechatPaymentConfig.SECRET);
//返回Sign是否相等的判断
return(originSign == caculateSign);
}
public void CreateJointStr_传入非空排序字典_链接字符串结果正确()
{
//arrange
SortedDictionary <string, string> sortDict = new SortedDictionary <string, string>();
sortDict.Add("a", "1");
sortDict.Add("d", "2");
sortDict.Add("b", "3");
//act
string jointStr = SignBulider.CreateJointStr(sortDict);
//assert
Assert.IsTrue(jointStr == "a=1&b=3&d=2&");
}
/// <summary>
/// Client执行接口
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="request"></param>
/// <returns></returns>
public static T Excute <T>(BasicRequest <T> request) where T : BasicResponse
{
//设置request对象的随机字符串
request.NonceStr = RandomStringBulider.Generate(32);
//1.首先执行参数验证，如果参数提供有误，会抛出异常
request.Validate();
//2.得到请求的所有参数字典,调用request.GetParameterDict()可以获得Request的应用参数，同时要将SYS_PARAMETER_DICT系统参数也加入
Dictionary <string, string> paramterDict = request.GetParameterDict()
.Concat(WechatPaymentConfig.SYS_PARAMETER_DICT).ToDictionary(k => k.Key, v => v.Value);
//3.将参数字典的key值按字母顺序排序（按ASCII排序，例如a在b前面）
SortedDictionary <string, string> sortedParameterDict = SortDictionaryConverter.Convert(paramterDict);
//4.拼接计算Sign参数
string sign = SignBulider.Generate(sortedParameterDict, WechatPaymentConfig.SECRET);
//5.将sign参数加入到参数字典中
paramterDict.Add("sign", sign);
//6.将paramterDict字典转化为XML格式
string requestXml = XmlStringBulider.Generate(paramterDict);
//7.提交请求到微信服务器，获取响应的字符串
//HACK(Teroy):退款API在POST的时候要带证书,其他API请求不用
string responseXml = request.IsPostRequireCertificate ?
HttpRequestWrapper.PostXmlWithCertificate(request.ApiUrl, requestXml) : HttpRequestWrapper.PostXml(request.ApiUrl, requestXml);
//8.将响应的XML数据实例化为T类型
T result = XmlSerializerWrapper.Deserialize <T>(responseXml);
//9.将响应的XML数据预存到Body中
result.Body = responseXml;
return(result);
}
