/**
*
* 检测签名是否正确
* 正确返回true，错误抛异常
*/
public bool CheckSign()
{
//如果没有设置签名，则跳过检测
if (!IsSet("sign"))
{
WxPayException exx = new WxPayException("WxPayData签名存在但不合法!");
log4net.LogHelper.WriteError(this.GetType(), exx);
throw exx;
}
//如果设置了签名但是签名为空，则抛异常
else if (GetValue("sign") == null || GetValue("sign").ToString() == "")
{
WxPayException exx = new WxPayException("WxPayData签名存在但不合法!");
log4net.LogHelper.WriteError(this.GetType(), exx);
throw exx;
}
//获取接收到的签名
string return_sign = GetValue("sign").ToString();
//第三方支付需要查询KEY的值
string key = string.Empty;
if (IsSet("appid"))
{
string appid = GetValue("appid").ToString();
PayCenterSetting setting = new PayCenterSettingBLL().GetPayCenterSetting(appid);
if (setting != null && setting.Id > 0)
{
key = setting.Key;
}
}
//在本地计算新的签名
string cal_sign = MakeSign(key);
if (cal_sign == return_sign)
{
return(true);
}
WxPayException ex = new WxPayException("WxPayData签名验证错误!");
log4net.LogHelper.WriteError(this.GetType(), ex);
throw ex;;
}
//public SortedDictionary<string, object> FromXml(string xml, bool checksign)
//{
// if (checksign)
// {
// return FromXml(xml);
// }
// if (string.IsNullOrEmpty(xml))
// {
// WxPayException ex = new WxPayException("将空的xml串转换为WxPayData不合法!");
// log4net.LogHelper.WriteError(this.GetType(), ex);
// throw ex;
// }
// XmlDocument xmlDoc = new XmlDocument();
// xmlDoc.LoadXml(xml);
// XmlNode xmlNode = xmlDoc.FirstChild;//获取到根节点<xml>
// XmlNodeList nodes = xmlNode.ChildNodes;
// foreach (XmlNode xn in nodes)
// {
// XmlElement xe = (XmlElement)xn;
// m_values[xe.Name] = xe.InnerText;//获取xml的键值对到WxPayData内部的数据中
// }
// return m_values;
//}
/**
* @Dictionary格式转化成url参数格式
* @ return url格式串, 该串不包含sign字段值
*/
public string ToUrl()
{
string buff = "";
foreach (KeyValuePair <string, object> pair in m_values)
{
if (pair.Value == null)
{
WxPayException ex = new WxPayException("WxPayData内部含有值为null的字段!" + pair.Key);
log4net.LogHelper.WriteError(this.GetType(), ex);
throw ex;
}
if (pair.Key != "sign" && pair.Value.ToString() != "")
{
buff += pair.Key + "=" + pair.Value + "&";
}
}
buff = buff.Trim('&');
return(buff);
}
/**
* @将Dictionary转成xml
* @return 经转换得到的xml串
* @throws WxPayException
**/
public string ToXml()
{
//数据为空时不能转化为xml格式
if (0 == m_values.Count)
{
WxPayException ex = new WxPayException("WxPayData数据为空!");
log4net.LogHelper.WriteError(this.GetType(), ex);
throw ex;
}
string xml = "<xml>";
foreach (KeyValuePair <string, object> pair in m_values)
{
//字段值不能为null，会影响后续流程
if (pair.Value == null)
{
WxPayException ex = new WxPayException("WxPayData内部含有值为null的字段!");
log4net.LogHelper.WriteError(this.GetType(), ex);
throw ex;
}
if (pair.Value.GetType() == typeof(int))
{
xml += "<" + pair.Key + ">" + pair.Value + "</" + pair.Key + ">";
}
else if (pair.Value.GetType() == typeof(string))
{
xml += "<" + pair.Key + ">" + "<![CDATA[" + pair.Value + "]]></" + pair.Key + ">";
}
else//除了string和int类型不能含有其他数据类型
{
WxPayException ex = new WxPayException("WxPayData字段数据类型错误!");
log4net.LogHelper.WriteError(this.GetType(), ex);
throw ex;
}
}
xml += "</xml>";
return(xml);
}
/**
* @将xml转为WxPayData对象并返回对象内部的数据
* @param string 待转换的xml串
* @return 经转换得到的Dictionary
* @throws WxPayException
*/
public SortedDictionary <string, object> FromXml(string xml)
{
if (string.IsNullOrEmpty(xml))
{
WxPayException ex = new WxPayException("将空的xml串转换为WxPayData不合法!");
log4net.LogHelper.WriteError(this.GetType(), ex);
throw ex;
}
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.LoadXml(xml);
XmlNode xmlNode = xmlDoc.FirstChild;//获取到根节点<xml>
XmlNodeList nodes = xmlNode.ChildNodes;
foreach (XmlNode xn in nodes)
{
XmlElement xe = (XmlElement)xn;
m_values[xe.Name] = xe.InnerText;//获取xml的键值对到WxPayData内部的数据中
}
try
{
//2015-06-29 错误是没有签名
if ((string)m_values["return_code"] != "SUCCESS")
{
return(m_values);
}
CheckSign();//验证签名,不通过会抛异常
}
catch (WxPayException ex)
{
throw new WxPayException(ex.Message);
}
return(m_values);
}