private static EncryptParseItem ParseEncryptItem(string body, string rootNode, int indexOfRootNode)
{
var signDataStartIndex = indexOfRootNode + rootNode.Length + 2;
var indexOfSign = body.IndexOf("\"" + AlipayConstants.SIGN + "\"");
var signDataEndIndex = indexOfSign - 1;
if (signDataEndIndex < 0)
{
signDataEndIndex = body.Length - 1;
}
var length = signDataEndIndex - signDataStartIndex;
var encyptContent = body.Substring(signDataStartIndex + 1, length - 2);
var item = new EncryptParseItem();
item.encryptContent = encyptContent;
item.startIndex = signDataStartIndex;
item.endIndex = signDataEndIndex;
return(item);
}
private static EncryptParseItem ParseEncryptItem(string body, string rootNode, int indexOfRootNode)
{
// 第一个字母+长度+>
var signDataStartIndex = indexOfRootNode + rootNode.Length + 1;
var xmlStartNode = "<" + AlipayConstants.ENCRYPT_NODE_NAME + ">";
var xmlEndNode = "</" + AlipayConstants.ENCRYPT_NODE_NAME + ">";
var indexOfEncryptNode = body.IndexOf(xmlEndNode);
if (indexOfEncryptNode < 0)
{
var item = new EncryptParseItem();
item.encryptContent = null;
item.startIndex = 0;
item.endIndex = 0;
return(item);
}
var startIndex = signDataStartIndex + xmlStartNode.Length;
var bizLen = indexOfEncryptNode - startIndex;
var encryptBizContent = body.Substring(startIndex, bizLen);
var item2 = new EncryptParseItem();
item2.encryptContent = encryptBizContent;
item2.startIndex = signDataStartIndex;
item2.endIndex = indexOfEncryptNode + xmlEndNode.Length;
return(item2);
}
/// <summary>
/// 解析加密节点
/// </summary>
/// <param name="request"></param>
/// <param name="body"></param>
/// <returns></returns>
private static EncryptParseItem parseEncryptData(IAopRequest <T> request, string body)
{
var rootNode = request.GetApiName().Replace(".", "_") + AlipayConstants.RESPONSE_SUFFIX;
var errorRootNode = AlipayConstants.ERROR_RESPONSE;
var indexOfRootNode = body.IndexOf(rootNode);
var indexOfErrorRoot = body.IndexOf(errorRootNode);
EncryptParseItem result = null;
if (indexOfRootNode > 0)
{
result = ParseEncryptItem(body, rootNode, indexOfRootNode);
}
else if (indexOfErrorRoot > 0)
{
result = ParseEncryptItem(body, errorRootNode, indexOfErrorRoot);
}
return(result);
}