WooYun.org

public static class OrderRequest
	{
		public static string Send(string data, string url, Encoding encoding, bool isBase64, string sign, string messageType, string companyId)
		{
			byte[] md5HashBytes = Encrypt.GetMd5HashBytes(data + sign, encoding);
			string text = isBase64 ? Convert.ToBase64String(md5HashBytes) : encoding.GetString(md5HashBytes);
			text = HttpUtility.UrlEncode(text);
			Dictionary<string, string> formData = new Dictionary<string, string>
			{
				
				{
					"data",
					data
				},
				
				{
					"data_digest",
					text
				},
				
				{
					"msg_type",
					messageType
				},
				
				{
					"company_id",
					companyId
				}
			};
			return RequestUtility.HttpPost(url, null, formData, encoding);
		}
	}

string value = OrderRequest.Send(billCode[0], ZtoInterfaceUrlUtil.BillUrl, System.Text.Encoding.UTF8, true, ZtoInterfaceUrlUtil.BillInterfaceSign, MsgType.GET, "ZHONGTIAN", null);