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232 lines
7.7 KiB
232 lines
7.7 KiB
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using BWP.ABCClient.Businesses;
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using System.Security.Cryptography;
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using System.Net;
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using System.IO;
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using System.Security;
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namespace BWP.ABCClient.B2C.OnlineRemits
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{
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public abstract class OnlineRemitBaseRequest
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{
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protected abstract void checkRequest();
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protected abstract XmlDocument createMessage();
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XmlDocument verifySign(XmlDocument aMessage)
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{
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XmlDocument document = aMessage.GetValue("Message");
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if (document == null)
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{
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throw new OnlineRemitException("1301", "网上支付平台的响应报文不完整", "无[Message]段！");
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}
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if (aMessage.GetValueNoNull("Signature-Algorithm") == null)
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{
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throw new OnlineRemitException("1301", "网上支付平台的响应报文不完整", "无[Signature-Algorithm]段！");
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}
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string data = aMessage.GetValueNoNull("Signature");
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if (data == null)
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{
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throw new OnlineRemitException("1301", "网上支付平台的响应报文不完整", "无[Signature]段！");
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}
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byte[] rgbSignature = Convert.FromBase64String(data);
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try
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{
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SHA1Managed managed = new SHA1Managed();
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byte[] rgbHash = managed.ComputeHash(Encoding.GetEncoding("gb2312").GetBytes(document.ToString()));
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RSACryptoServiceProvider provider = new RSACryptoServiceProvider(new CspParameters { Flags = CspProviderFlags.UseMachineKeyStore });
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//RSAParameters parameters = TrustpayCertificate.GetPublicKey().ExportParameters();
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RSAParameters parameters = new RSAParameters() { Exponent = OnlineRemitConfig.GetCertificate().GetPublicKey() };
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provider.ImportParameters(parameters);
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bool flag = provider.VerifyHash(rgbHash, CryptoConfig.MapNameToOID("SHA1"), rgbSignature);
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managed.Clear();
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provider.Clear();
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if (!flag)
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{
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throw new OnlineRemitException("1302", "网上支付平台的响应报文签名验证失败");
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}
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}
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catch (OnlineRemitException exception)
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{
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throw exception;
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}
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catch (Exception exception2)
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{
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throw new OnlineRemitException("1302", "网上支付平台的响应报文签名验证失败 - " + exception2.Message);
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}
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return document;
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}
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string ECMerchantType = "B2C";
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/// <summary>
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/// 商户编号
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/// </summary>
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public string MerchantID { get; set; }
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XmlDocument sendMessage(XmlDocument aMessage)
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{
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Exception exception;
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string s = "<MSG>" + aMessage.ToString() + "</MSG>";
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int length = 0;
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try
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{
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length = Encoding.UTF8.GetBytes(s).Length;
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}
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catch (Exception exception1)
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{
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exception = exception1;
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throw new OnlineRemitException("1999", "系统发生无法预期的错误", exception.Message);
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}
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HttpWebRequest request = null;
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BufferedStream stream = null;
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HttpWebResponse response = null;
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string aXMLString = "";
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XmlDocument document = null;
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string str3 = OnlineRemitConfig.TrustPayConnectMethod + "://" + OnlineRemitConfig.TrustPayServerName;
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if ((OnlineRemitConfig.TrustPayConnectMethod.Equals("https") && (OnlineRemitConfig.TrustPayServerPort != 0x1bb)) || (OnlineRemitConfig.TrustPayConnectMethod.Equals("http") && (OnlineRemitConfig.TrustPayServerPort != 80)))
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{
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str3 = str3 + ":" + OnlineRemitConfig.TrustPayServerPort;
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}
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try
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{
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request = (HttpWebRequest)WebRequest.Create(str3 + OnlineRemitConfig.TrustPayTrxURL);
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request.Method = "POST";
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request.ProtocolVersion = HttpVersion.Version10;
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request.ContentType = "application/x-www-form-urlencoded";
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//this.iLogWriter.log("成功");
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//this.iLogWriter.logNewLine("提交交易报文：");
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byte[] bytes = Encoding.UTF8.GetBytes(s);
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request.ContentLength = bytes.Length;
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stream = new BufferedStream(request.GetRequestStream());
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if (!stream.CanWrite)
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{
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throw new OnlineRemitException("1201", "无法连线网上支付平台", "无法连线到[" + str3 + "]");
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}
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stream.Write(bytes, 0, bytes.Length);
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stream.Flush();
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stream.Close();
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//this.iLogWriter.log("成功");
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//this.iLogWriter.logNewLine("等待网上支付平台返回交易结果：");
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response = (HttpWebResponse)request.GetResponse();
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Stream responseStream = response.GetResponseStream();
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Encoding encoding = Encoding.GetEncoding("gb2312");
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StreamReader reader = new StreamReader(responseStream, encoding);
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string str4 = null;
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while ((str4 = reader.ReadLine()) != null)
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{
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aXMLString = aXMLString + str4;
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if (str4.IndexOf("</MSG>") != -1)
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{
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break;
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}
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}
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response.Close();
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//this.iLogWriter.log("成功");
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//this.iLogWriter.logNewLine("返回报文：");
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//this.iLogWriter.log("\n" + aXMLString.ToString());
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if (response.StatusCode != HttpStatusCode.OK)
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{
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throw new OnlineRemitException("1206", "网上支付平台服务暂时停止");
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}
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document = new XmlDocument(aXMLString).GetValue("MSG");
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if (document == null)
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{
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throw new OnlineRemitException("1205", "无法辨识网上支付平台的响应报文", "无[MSG]段！");
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}
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}
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catch (WebException exception2)
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{
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//this.iLogWriter.logNewLine(exception2.ToString());
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throw new OnlineRemitException("1201", "无法连线网上支付平台", "无法连线到[" + str3 + "], " + exception2.Message);
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}
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catch (IOException exception3)
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{
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//this.iLogWriter.logNewLine(exception3.ToString());
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throw new OnlineRemitException("1202", "提交交易时发生网络错误", "连线中断！");
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}
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catch (SecurityException exception4)
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{
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//this.iLogWriter.logNewLine(exception4.ToString());
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throw new OnlineRemitException("1201", "无法连线网上支付平台", "进程权限太低！");
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}
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catch (OnlineRemitException exception5)
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{
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throw exception5;
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}
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catch (Exception exception10)
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{
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exception = exception10;
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//this.iLogWriter.logNewLine(exception.StackTrace);
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throw new OnlineRemitException("1201", "无法连线网上支付平台", exception.StackTrace);
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}
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finally
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{
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if (stream != null)
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{
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try
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{
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stream.Close();
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}
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catch (Exception)
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{
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}
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}
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if (response != null)
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{
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try
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{
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response.Close();
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}
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catch (Exception)
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{
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}
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}
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}
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return document;
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}
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/// <summary>
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/// 在消息头部加上商户信息
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/// </summary>
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/// <param name="aMessage"></param>
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/// <returns></returns>
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XmlDocument composeRequestMessage(XmlDocument aMessage)
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{
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return new XmlDocument("<Merchant><ECMerchantType>" + ECMerchantType + "</ECMerchantType><MerchantID>" + MerchantID + "</MerchantID></Merchant>" + aMessage.ToString());
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}
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/// <summary>
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/// 加入签名信息
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/// </summary>
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/// <param name="aMessage"></param>
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/// <returns></returns>
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XmlDocument fileSignMessage(XmlDocument aMessage)
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{
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RSACryptoServiceProvider provider = OnlineRemitConfig.GetMerchantKey(MerchantID);
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byte[] rgbHash = new SHA1Managed().ComputeHash(Encoding.UTF8.GetBytes(aMessage.ToString()));
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byte[] data = provider.SignHash(rgbHash, CryptoConfig.MapNameToOID("SHA1"));
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string str = Convert.ToBase64String(data);
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return new XmlDocument("<Message>" + aMessage.ToString() + "</Message><Signature-Algorithm>SHA1withRSA</Signature-Algorithm><Signature>" + str + "</Signature>");
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}
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protected XmlDocument Send()
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{
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checkRequest();
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var message = createMessage();
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message = composeRequestMessage(message);
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message = fileSignMessage(message);
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message = sendMessage(message);
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message = verifySign(message);
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return message;
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}
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}
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}
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