Initial project's source code check-in.
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// Copyright (c) 2011, Outercurve Foundation.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification,
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// are permitted provided that the following conditions are met:
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//
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// - Redistributions of source code must retain the above copyright notice, this
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// list of conditions and the following disclaimer.
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//
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// - Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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//
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// - Neither the name of the Outercurve Foundation nor the names of its
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// contributors may be used to endorse or promote products derived from this
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// software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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// ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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using System;
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using System.Web;
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using System.Net;
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using System.IO;
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using System.Collections.Generic;
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using System.Text;
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using System.Security.Cryptography;
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namespace WebsitePanel.Ecommerce.EnterpriseServer
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{
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/// <summary>
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/// Payment provider for the Authorize.NET Gateway
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/// </summary>
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public class AuthorizeNetProvider : SystemPluginBase, IPaymentGatewayProvider
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{
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public const string DEMO_SERVICE_URL = "https://test.authorize.net/gateway/transact.dll";
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public const string LIVE_SERVICE_URL = "https://secure.authorize.net/gateway/transact.dll";
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public const char DELIMITER_CHAR = '|';
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public const string API_VERSION = "3.1";
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public const string TRANSACTION_TYPE = "AUTH_CAPTURE";
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public const string PAYMENT_METHOD = "CC";
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public const string MD5_INVALID_MSG = "MD5 hash value received is either incorrect or modified.";
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public override string[] SecureSettings
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{
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get
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{
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return new string[] { AuthNetSettings.MD5_HASH, AuthNetSettings.TRANSACTION_KEY };
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}
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}
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/// <summary>
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/// Gets Authorize.Net account is demo
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/// </summary>
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public bool DemoAccount
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{
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get
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{
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return Convert.ToBoolean(PluginSettings[AuthNetSettings.DEMO_ACCOUNT]);
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}
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}
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/// <summary>
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/// Gets whether provider is running in live mode
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/// </summary>
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public bool LiveMode
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{
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get
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{
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return Convert.ToBoolean(PluginSettings[AuthNetSettings.LIVE_MODE]);
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}
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}
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/// <summary>
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/// Gets whether email confirmations enabled
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/// </summary>
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public bool SendConfirmation
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{
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get
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{
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return Convert.ToBoolean(PluginSettings[AuthNetSettings.SEND_CONFIRMATION]);
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}
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}
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/// <summary>
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/// Get MD5 hash value for the account
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/// </summary>
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public string MD5_Hash
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{
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get { return PluginSettings[AuthNetSettings.MD5_HASH]; }
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}
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/// <summary>
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/// Gets transaction key for the account
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/// </summary>
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public string TransactionKey
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{
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get { return PluginSettings[AuthNetSettings.TRANSACTION_KEY]; }
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}
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/// <summary>
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/// Gets Authorize.Net account username
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/// </summary>
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public string Username
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{
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get { return PluginSettings[AuthNetSettings.USERNAME]; }
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}
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/// <summary>
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/// Gets merchant email to send confirmations by email
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/// </summary>
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public string MerchantEmail
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{
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get { return PluginSettings[AuthNetSettings.MERCHANT_EMAIL]; }
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}
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/// <summary>
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/// Gets Authorize.Net service url
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/// </summary>
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public string ServiceUrl
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{
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get
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{
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if (DemoAccount)
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return DEMO_SERVICE_URL;
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return LIVE_SERVICE_URL;
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}
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}
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#region IPaymentGatewayProvider Members
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public TransactionResult SubmitPaymentTransaction(CheckoutDetails details)
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{
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//init result structure
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TransactionResult ret = new TransactionResult();
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//create request content
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string data = GetRequestData(details);
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// create webrequest instance
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HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(ServiceUrl);
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webRequest.Method = "POST";
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webRequest.ContentLength = data.Length;
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webRequest.ContentType = "application/x-www-form-urlencoded";
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// send service request
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StreamWriter sw = null;
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try
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{
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sw = new StreamWriter(webRequest.GetRequestStream());
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sw.Write(data);
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}
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finally
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{
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if (sw != null)
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sw.Close();
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}
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// read service response
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AIMResponse aimResponse = null;
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HttpWebResponse webResponse = null;
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try
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{
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// get response
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webResponse = (HttpWebResponse)webRequest.GetResponse();
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// emit new response
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aimResponse = new AIMResponse(webResponse.GetResponseStream(), DELIMITER_CHAR);
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}
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finally
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{
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webResponse.Close();
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webRequest.Abort();
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}
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// copy raw service response
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ret.RawResponse = aimResponse.RawResponse;
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// read service response status
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switch (aimResponse[AIMField.ResponseCode])
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{
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case "1": //This transaction has been approved.
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case "4": //This transaction is being held for review.
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// check MD5 signature
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if (!CheckResponseSignature(Username, MD5_Hash, aimResponse[AIMField.TransactionId], details[CheckoutKeys.Amount],
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aimResponse[AIMField.ResponseSignature]))
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{
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throw new Exception(MD5_INVALID_MSG);
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}
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//
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ret.Succeed = true;
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//
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ret.TransactionId = aimResponse[AIMField.TransactionId];
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// mark transaction as a completed
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ret.TransactionStatus = TransactionStatus.Approved;
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//
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break;
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case "2": // This transaction has been declined.
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case "3": // There has been an error processing this transaction.
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//
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ret.StatusCode = String.Concat(AuthorizeNetKeys.ErrorPrefix, aimResponse[AIMField.ResponseCode],
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aimResponse[AIMField.ResponseReasonCode]);
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//
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ret.Succeed = false;
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//
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ret.TransactionStatus = TransactionStatus.Declined;
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//
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break;
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}
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// return result
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return ret;
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}
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#endregion
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private bool CheckResponseSignature(string login, string md5hash,
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string transactId, string amount, string signature)
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{
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//input string = "MD5 Hash Value"+"API Login ID"+"Trans ID"+"Amount"
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byte[] data = Encoding.ASCII.GetBytes(md5hash + login + transactId + amount);
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MD5 md5 = new MD5CryptoServiceProvider();
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byte[] result = md5.ComputeHash(data);
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StringBuilder sb = new StringBuilder();
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foreach (byte b in result)
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{
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sb.Append(b.ToString("X2"));
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}
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// validate response signature
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return (sb.ToString() == signature);
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}
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private string GetRequestData(CheckoutDetails details)
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{
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StringBuilder sb = new StringBuilder();
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AddRequestData(CheckoutKeys.CardNumber, AuthorizeNetKeys.CardNumber, sb, details);
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AddRequestData(CheckoutKeys.VerificationCode, AuthorizeNetKeys.VerificationCode, sb, details);
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// expire date
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string expireDate = String.Concat(details[CheckoutKeys.ExpireMonth], details[CheckoutKeys.ExpireYear]);
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AddRequestData(AuthorizeNetKeys.ExpirationDate, expireDate, sb);
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AddRequestData(CheckoutKeys.Amount, AuthorizeNetKeys.Amount, sb, details);
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//TODO: Add currency support
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AddRequestData(CheckoutKeys.Currency, AuthorizeNetKeys.CurrencyCode, sb, details);
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AddRequestData(CheckoutKeys.InvoiceNumber, AuthorizeNetKeys.InvoiceNumber, sb, details);
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AddRequestData(CheckoutKeys.ContractNumber, AuthorizeNetKeys.TransDescription, sb, details);
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AddRequestData(CheckoutKeys.FirstName, AuthorizeNetKeys.FirstName, sb, details);
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AddRequestData(CheckoutKeys.LastName, AuthorizeNetKeys.LastName, sb, details);
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// email is shipping
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AddRequestData(CheckoutKeys.CustomerEmail, AuthorizeNetKeys.CustomerEmail, sb, details);
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AddRequestData(CheckoutKeys.Address, AuthorizeNetKeys.Address, sb, details);
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AddRequestData(CheckoutKeys.Zip, AuthorizeNetKeys.Zip, sb, details);
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AddRequestData(CheckoutKeys.City, AuthorizeNetKeys.City, sb, details);
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AddRequestData(CheckoutKeys.State, AuthorizeNetKeys.State, sb, details);
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AddRequestData(CheckoutKeys.Country, AuthorizeNetKeys.Country, sb, details);
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AddRequestData(CheckoutKeys.Phone, AuthorizeNetKeys.Phone, sb, details);
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AddRequestData(CheckoutKeys.Fax, AuthorizeNetKeys.Fax, sb, details);
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AddRequestData(CheckoutKeys.CustomerId, AuthorizeNetKeys.CustomerId, sb, details);
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AddRequestData(CheckoutKeys.IPAddress, AuthorizeNetKeys.IPAddress, sb, details);
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// shipping information
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AddRequestData(CheckoutKeys.ShipToFirstName, AuthorizeNetKeys.ShipToFirstName, sb, details);
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AddRequestData(CheckoutKeys.ShipToLastName, AuthorizeNetKeys.ShipToLastName, sb, details);
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AddRequestData(CheckoutKeys.ShipToCompany, AuthorizeNetKeys.ShipToCompany, sb, details);
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AddRequestData(CheckoutKeys.ShipToZip, AuthorizeNetKeys.ShipToZip, sb, details);
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AddRequestData(CheckoutKeys.ShipToAddress, AuthorizeNetKeys.ShipToAddress, sb, details);
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AddRequestData(CheckoutKeys.ShipToCity, AuthorizeNetKeys.ShipToCity, sb, details);
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AddRequestData(CheckoutKeys.ShipToState, AuthorizeNetKeys.ShipToState, sb, details);
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AddRequestData(CheckoutKeys.ShipToCountry, AuthorizeNetKeys.ShipToCountry, sb, details);
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// service settings
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// copy account username
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AddRequestData(AuthorizeNetKeys.Account, Username, sb);
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// copy response delimiter char
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AddRequestData(AuthorizeNetKeys.DelimiterChar, DELIMITER_CHAR.ToString(), sb);
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// copy transaction key
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AddRequestData(AuthorizeNetKeys.TransactionKey, TransactionKey, sb);
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// copy send confirmation flag & merchant email
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if (SendConfirmation)
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{
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AddRequestData(AuthorizeNetKeys.MerchantEmail, MerchantEmail, sb);
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AddRequestData(AuthorizeNetKeys.SendConfirmation, "TRUE", sb);
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}
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else
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{
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AddRequestData(AuthorizeNetKeys.SendConfirmation, "FALSE", sb);
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}
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// copy API version
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AddRequestData(AuthorizeNetKeys.Version, API_VERSION, sb);
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// copy demo mode flag
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if (!LiveMode)
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AddRequestData(AuthorizeNetKeys.DemoMode, "TRUE", sb);
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// copy payment method
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AddRequestData(AuthorizeNetKeys.PaymentMethod, PAYMENT_METHOD, sb);
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// copy transaction type
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AddRequestData(AuthorizeNetKeys.TransactType, TRANSACTION_TYPE, sb);
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// copy delim data flag
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AddRequestData(AuthorizeNetKeys.DelimData, "TRUE", sb);
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// copy relay response flag
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AddRequestData(AuthorizeNetKeys.RelayResponse, "FALSE", sb);
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// return result
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return sb.ToString();
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}
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private void AddRequestData(string key1, string key2, StringBuilder sb, CheckoutDetails details)
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{
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AddRequestData(key2, details[key1], sb);
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}
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private void AddRequestData(string key, StringBuilder sb, CheckoutDetails details)
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{
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AddRequestData(key, details[key], sb);
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}
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private void AddRequestData(string key, string value, StringBuilder sb)
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{
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if (!String.IsNullOrEmpty(key) && !String.IsNullOrEmpty(value))
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{
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if (sb.Length == 0)
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sb.AppendFormat("{0}={1}", key, value);
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else
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sb.AppendFormat("&{0}={1}", key, value);
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}
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}
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}
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}
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