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.Collections.Generic;
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using System.Security.Cryptography;
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using System.Text;
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namespace WebsitePanel.Ecommerce.EnterpriseServer
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{
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public class TCOProvider : SystemPluginBase, IInteractivePaymentGatewayProvider
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{
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#region Error Messages
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public const string CURRENCY_NOT_MATCH_MSG = "Invoice currency doesn't conform with the 2CheckOut plug-in settings. Please check that your storefront base currency matches with the 2CO plug-in currency";
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public const string KEY_VALIDATION_FAILED_MSG = "Key validation failed. Original response has been either corrupted or modified.";
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public const string CC_PROCESSED_ERROR_MSG = "2CheckOut is unable to process your credit card";
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#endregion
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public const string PAYMENT_ROUTINE = "https://www.2checkout.com/2co/buyer/purchase";
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public const string ErrorPrefix = "2Checkout.";
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public const string CREDIT_CARD_PROCESSED = "credit_card_processed";
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public const string DEMO_MODE = "demo";
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public const string KEY = "key";
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public const string OUTSIDE_US_CA = "Outside US and Canada";
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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[] { ToCheckoutSettings.SECRET_WORD };
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}
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}
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/// <summary>
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/// Gets whether 2CO plug-in running in demo 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[ToCheckoutSettings.LIVE_MODE]);
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}
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}
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/// <summary>
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/// Gets whether 2CO plug-in should disable quantity field
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/// </summary>
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public bool FixedCart
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{
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get
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{
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return Convert.ToBoolean(PluginSettings[ToCheckoutSettings.FIXED_CART]);
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}
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}
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/// <summary>
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/// Gets plug-in secret word
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/// </summary>
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public string SecretWord
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{
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get { return PluginSettings[ToCheckoutSettings.SECRET_WORD]; }
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}
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/// <summary>
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/// Gets 2CO account sid
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/// </summary>
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public string AccountSID
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{
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get { return PluginSettings[ToCheckoutSettings.ACCOUNT_SID]; }
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}
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/// <summary>
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/// Gets 2CO currency
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/// </summary>
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public string TCO_Currency
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{
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get { return PluginSettings[ToCheckoutSettings.CURRENCY]; }
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}
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/// <summary>
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/// Gets 2CO continue shopping button url
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/// </summary>
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public string ContinueShoppingUrl
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{
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get { return PluginSettings[ToCheckoutSettings.CONTINUE_SHOPPING_URL]; }
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}
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public TCOProvider()
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{
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}
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#region IPaymentGatewayProvider Members
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public CheckoutFormParams GetCheckoutFormParams(FormParameters inputParams, InvoiceItem[] invoiceLines)
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{
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// check invoice currency against 2CO settings
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if (!CI_ValuesEqual(TCO_Currency, inputParams[FormParameters.CURRENCY]))
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throw new Exception(CURRENCY_NOT_MATCH_MSG);
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// fill checkout params
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CheckoutFormParams outputParams = new CheckoutFormParams();
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// sets serviced props
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outputParams.Action = PAYMENT_ROUTINE;
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outputParams.Method = CheckoutFormParams.POST_METHOD;
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// copy target_site variable
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outputParams["target_site"] = inputParams["target_site"];
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// copy invoice amount
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outputParams["sid"] = AccountSID;
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// copy contract number
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outputParams["contract_id"] = inputParams[FormParameters.CONTRACT];
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// copy invoice number
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outputParams["merchant_order_id"] = inputParams[FormParameters.INVOICE];
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// copy invoice currency
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outputParams["tco_currency"] = inputParams[FormParameters.CURRENCY];
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// copy continue shopping button url
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// outputParams["return_url"] = ContinueShoppingUrl + "&ContractId=" + inputParams[FormParameters.CONTRACT];
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// copy fixed cart option
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if (FixedCart)
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outputParams["fixed"] = "Y";
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// copy pay method (credit card)
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outputParams["pay_method"] = "CC";
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// copy live mode flag
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if (!LiveMode)
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outputParams["demo"] = "Y";
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// copy card holder name
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outputParams["card_holder_name"] = inputParams[FormParameters.FIRST_NAME] + " " + inputParams[FormParameters.LAST_NAME];
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// copy email
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outputParams["email"] = inputParams[FormParameters.EMAIL];
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// copy street address
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outputParams["street_address"] = inputParams[FormParameters.ADDRESS];
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// copy country
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outputParams["country"] = inputParams[FormParameters.COUNTRY];
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// copy city
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outputParams["city"] = inputParams[FormParameters.CITY];
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// copy state & phone
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if (!CI_ValuesEqual(inputParams[FormParameters.COUNTRY], "US") &&
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!CI_ValuesEqual(inputParams[FormParameters.COUNTRY], "CA"))
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{
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// state is outside US & CA
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outputParams["state"] = OUTSIDE_US_CA;
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// copy outside US phone as is
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outputParams["phone"] = inputParams[FormParameters.PHONE];
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}
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else
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{
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// copy state
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outputParams["state"] = inputParams[FormParameters.STATE];
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// convert phone to US format
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outputParams["phone"] = ConvertPhone2US(inputParams[FormParameters.PHONE]);
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}
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// copy zip
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outputParams["zip"] = inputParams[FormParameters.ZIP];
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// copy invoice amount
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outputParams["total"] = inputParams[FormParameters.AMOUNT];
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// copy invoice number
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outputParams["cart_order_id"] = inputParams[FormParameters.INVOICE];
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return outputParams;
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}
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public TransactionResult SubmitPaymentTransaction(CheckoutDetails details)
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{
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TransactionResult result = new TransactionResult();
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// build raw response for 2CO
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string[] keys = details.GetAllKeys();
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List<string> bunch = new List<string>();
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// copy checkout details
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foreach (string key in keys)
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{
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bunch.Add(String.Concat(key, "=", details[key]));
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}
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// build raw 2CO response
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result.RawResponse = String.Join("|", bunch.ToArray());
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// recognize credit card status
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switch(details[CREDIT_CARD_PROCESSED])
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{
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case "Y":
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result.TransactionStatus = TransactionStatus.Approved;
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break;
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case "K":
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result.TransactionStatus = TransactionStatus.Pending;
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break;
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default:
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throw new Exception(CC_PROCESSED_ERROR_MSG);
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}
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// read order number
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string order_number = details["order_number"];
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// check demo mode: set order number to 1
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// according to 2Checkout documentation for demo transactions
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bool valid = false;
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// validate TCO key
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if (LiveMode) // do live validation
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valid = ValidateKey(SecretWord, AccountSID, order_number, details[CheckoutKeys.Amount], details[KEY]);
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else // do demo validation
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valid = ValidateKey(SecretWord, AccountSID, "1", details[CheckoutKeys.Amount], details[KEY]);
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// key validation failed
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if (!valid)
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throw new ArgumentException(KEY_VALIDATION_FAILED_MSG);
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// we are succeed copy order number
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result.TransactionId = order_number;
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//
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result.Succeed = true;
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// return result
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return result;
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}
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#endregion
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private bool ValidateKey(string secretWord, string vendorNumber, string tcoOrderNumber, string tcoTotal, string tcoKey)
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{
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string rawString = String.Concat(secretWord, vendorNumber, tcoOrderNumber, tcoTotal);
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System.Text.Encoding encoding = System.Text.Encoding.ASCII;
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byte[] bufferIn = encoding.GetBytes(rawString);
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MD5CryptoServiceProvider cryptoProv = new MD5CryptoServiceProvider();
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byte[] bufferOut = cryptoProv.ComputeHash(bufferIn);
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string hashString = String.Empty;
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for (int i = 0; i < bufferOut.Length; i++)
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{
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hashString += Convert.ToString(bufferOut[i], 16).PadLeft(2, '0');
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}
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hashString = hashString.PadLeft(32, '0').ToUpper();
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return (String.Compare(hashString, tcoKey, true) == 0);
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}
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private string ConvertPhone2US(string phone)
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{
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string result = "";
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// loop for each digit in phone
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foreach (char c in phone.ToCharArray())
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{
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// exit from loop if phone length is exceeded
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if (result.Length == 12)
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break;
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// check character
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if (Char.IsDigit(c))
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{
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// append delimiter
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if (result.Length == 3 || result.Length == 6)
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result += "-";
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// build phone number
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result += c.ToString();
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}
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}
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// return result formatted string
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return result;
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}
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private bool CI_ValuesEqual(string strA, string strB)
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{
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return String.Equals(strA, strB, StringComparison.InvariantCultureIgnoreCase);
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}
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}
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}
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