/// <summary>
/// 获取返回时的签名验证结果
/// </summary>
/// <param name="inputPara">通知返回参数数组</param>
/// <param name="sign">对比的签名结果</param>
/// <param name="signType">签名方式</param>
/// <param name="key">交易安全校验码</param>
/// <param name="code">字符编码格式</param>
/// <returns>签名验证结果</returns>
private static bool GetSignVeryfy(SortedDictionary <string, string> inputPara, string sign, string signType, string key, Encoding code)
{
Dictionary <string, string> sPara = new Dictionary <string, string>();
//过滤空值、sign与sign_type参数
sPara = AlipayCore.FilterPara(inputPara);
//获取待签名字符串
string preSignStr = AlipayCore.CreateLinkString(sPara);
//获得签名验证结果
bool isSgin = false;
if (sign != null && sign != "")
{
switch (signType)
{
case "MD5":
isSgin = AlipayMD5.Verify(preSignStr, sign, key, code);
break;
default:
break;
}
}
return(isSgin);
}
/// <summary>
/// 获取是否是支付宝服务器发来的请求的验证结果
/// </summary>
/// <param name="notifyId">通知验证ID</param>
/// <param name="veryfyUrl">支付宝消息验证地址</param>
/// <param name="partner">收款支付宝帐户ID</param>
/// <returns>验证结果</returns>
private static string GetResponseTxt(string notifyId, string veryfyUrl, string partner)
{
string veryfy_url = string.Format("{0}partner={1}¬ify_id={2}", veryfyUrl, partner, notifyId);
//获取远程服务器ATN结果，验证是否是支付宝服务器发来的请求
string responseTxt = AlipayCore.Get_Http(veryfy_url, 120000);
return(responseTxt);
}
/// <summary>
/// 获取待签名字符串（调试用）
/// </summary>
/// <param name="inputPara">通知返回参数数组</param>
/// <returns>待签名字符串</returns>
private static string GetPreSignStr(SortedDictionary <string, string> inputPara)
{
Dictionary <string, string> sPara = new Dictionary <string, string>();
//过滤空值、sign与sign_type参数
sPara = AlipayCore.FilterPara(inputPara);
//获取待签名字符串
string preSignStr = AlipayCore.CreateLinkString(sPara);
return(preSignStr);
}
/// <summary>
/// 生成要请求给支付宝的参数数组
/// </summary>
/// <param name="sParaTemp">请求前的参数数组</param>
/// <param name="signType">签名方式</param>
/// <param name="key">交易安全校验码</param>
/// <param name="code">字符编码</param>
/// <returns>要请求的参数数组字符串</returns>
private static string BuildRequestParaToString(SortedDictionary <string, string> sParaTemp, string signType, string key, Encoding code)
{
//待签名请求参数数组
Dictionary <string, string> sPara = new Dictionary <string, string>();
sPara = BuildRequestPara(sParaTemp, signType, key, code);
//把参数组中所有元素，按照“参数=参数值”的模式用“&”字符拼接成字符串，并对参数值做urlencode
string strRequestData = AlipayCore.CreateLinkStringUrlencode(sPara, code);
return(strRequestData);
}
/// <summary>
/// 生成要请求给支付宝的参数数组
/// </summary>
/// <param name="sParaTemp">请求前的参数数组</param>
/// <param name="signType">签名方式</param>
/// <param name="key">交易安全校验码</param>
/// <param name="code">字符编码格式</param>
/// <returns>要请求的参数数组</returns>
private static Dictionary <string, string> BuildRequestPara(SortedDictionary <string, string> sParaTemp, string signType, string key, Encoding code)
{
//待签名请求参数数组
Dictionary <string, string> sPara = new Dictionary <string, string>();
//签名结果
string mysign = "";
//过滤签名参数数组
sPara = AlipayCore.FilterPara(sParaTemp);
//获得签名结果
mysign = BuildRequestMysign(sPara, signType, key, code);
//签名结果与签名方式加入请求提交参数组中
sPara.Add("sign", mysign);
sPara.Add("sign_type", signType);
return(sPara);
}
/// <summary>
/// 生成请求时的签名
/// </summary>
/// <param name="sPara">请求给支付宝的参数数组</param>
/// <param name="signType">签名方式</param>
/// <param name="key">交易安全校验码</param>
/// <param name="code">字符编码格式</param>
/// <returns>签名结果</returns>
private static string BuildRequestMysign(Dictionary <string, string> sPara, string signType, string key, Encoding code)
{
//把数组所有元素，按照“参数=参数值”的模式用“&”字符拼接成字符串
string prestr = AlipayCore.CreateLinkString(sPara);
//把最终的字符串签名，获得签名结果
string mysign = "";
switch (signType)
{
case "MD5":
mysign = AlipayMD5.Sign(prestr, key, code);
break;
default:
mysign = "";
break;
}
return(mysign);
}