paypalevents.java

Sequoia ERP是一个真正的企业级开源ERP解决方案。它提供的模块包括：电子商务应用(e-commerce), POS系统(point of sales),知识管理,存货与仓库管理

/*
 * $Id: PayPalEvents.java 6642 2006-02-01 02:29:51Z sichen $
 *
 * Copyright (c) 2001-2005 The Open For Business Project - www.ofbiz.org
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT
 * OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 */
package org.ofbiz.accounting.thirdparty.paypal;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.URL;
import java.net.URLConnection;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Set;
import javax.servlet.ServletContext;
import javax.servlet.ServletRequest;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.ofbiz.base.util.Debug;
import org.ofbiz.base.util.UtilDateTime;
import org.ofbiz.base.util.UtilFormatOut;
import org.ofbiz.base.util.UtilHttp;
import org.ofbiz.base.util.UtilMisc;
import org.ofbiz.base.util.UtilProperties;
import org.ofbiz.base.util.UtilValidate;
import org.ofbiz.entity.GenericDelegator;
import org.ofbiz.entity.GenericEntityException;
import org.ofbiz.entity.GenericValue;
import org.ofbiz.entity.transaction.GenericTransactionException;
import org.ofbiz.entity.transaction.TransactionUtil;
import org.ofbiz.order.order.OrderChangeHelper;
import org.ofbiz.product.catalog.CatalogWorker;
import org.ofbiz.product.store.ProductStoreWorker;
import org.ofbiz.service.GenericServiceException;
import org.ofbiz.service.ModelService;
import org.ofbiz.service.LocalDispatcher;

import org.apache.commons.collections.map.LinkedMap;

/**
 * PayPal Events
 *
 * @author     <a href="mailto:[e-mail]">Andy Zeneski</a>
 * @version    $Rev: 6642 $
 * @since      2.0
 */
public class PayPalEvents {
    
    public static final String module = PayPalEvents.class.getName();
    
    /** Initiate PayPal Request */
    public static String callPayPal(HttpServletRequest request, HttpServletResponse response) {
        ServletContext application = ((ServletContext) request.getAttribute("servletContext"));
        GenericDelegator delegator = (GenericDelegator) request.getAttribute("delegator");
        LocalDispatcher dispatcher = (LocalDispatcher) request.getAttribute("dispatcher");
        GenericValue userLogin = (GenericValue) request.getSession().getAttribute("userLogin"); 
                
        // get the orderId
        String orderId = (String) request.getAttribute("orderId");
        
        // get the order header
        GenericValue orderHeader = null;
        try {
            orderHeader = delegator.findByPrimaryKey("OrderHeader", UtilMisc.toMap("orderId", orderId));
        } catch (GenericEntityException e) {
            Debug.logError(e, "Cannot get the order header for order: " + orderId, module);
            request.setAttribute("_ERROR_MESSAGE_", "Problems getting order header.");
            return "error";
        }
        
        // get the order total
        String orderTotal = UtilFormatOut.formatPrice(orderHeader.getDouble("grandTotal"));
            
        // get the webSiteId
        String webSiteId = CatalogWorker.getWebSiteId(request);
        
        // get the product store
        GenericValue productStore = ProductStoreWorker.getProductStore(request);

        if (productStore == null) {
            Debug.logError("ProductStore is null", module);
            request.setAttribute("_ERROR_MESSAGE_", "Problems getting merchant configuration, please contact customer service.");
            return "error";
        }
        
        // get the payment properties file       
        GenericValue paymentConfig = ProductStoreWorker.getProductStorePaymentSetting(delegator, productStore.getString("productStoreId"), "EXT_PAYPAL", null, true);
        String configString = null;
        if (paymentConfig != null) {
            configString = paymentConfig.getString("paymentPropertiesPath");    
        }
                
        if (configString == null) {
            configString = "payment.properties";
        }
                        
        // get the company name
        String company = UtilFormatOut.checkEmpty(productStore.getString("companyName"), "");
        
        // create the item name
        String itemName = "Order #" + orderId + (company != null ? " from " + company : "");
        String itemNumber = "0";
        
        // get the redirect url
        String redirectUrl = UtilProperties.getPropertyValue(configString, "payment.paypal.redirect");
        
        // get the notify url
        String notifyUrl = UtilProperties.getPropertyValue(configString, "payment.paypal.notify");
        
        // get the return urls
        String returnUrl = UtilProperties.getPropertyValue(configString, "payment.paypal.return");
        String cancelReturnUrl = UtilProperties.getPropertyValue(configString, "payment.paypal.cancelReturn");
        
        // get the image url
        String imageUrl = UtilProperties.getPropertyValue(configString, "payment.paypal.image");        
        
        // get the paypal account
        String payPalAccount = UtilProperties.getPropertyValue(configString, "payment.paypal.business");
                
        // create the redirect string
        Map parameters = new LinkedMap();
        parameters.put("cmd", "_xclick");
        parameters.put("business", payPalAccount);
        parameters.put("item_name", itemName);
        parameters.put("item_number", itemNumber);
        parameters.put("invoice", orderId);
        parameters.put("custom", userLogin.getString("userLoginId"));
        parameters.put("amount", orderTotal);        
        parameters.put("return", returnUrl);
        parameters.put("cancel_return", cancelReturnUrl);
        parameters.put("notify_url", notifyUrl);
        parameters.put("image_url", imageUrl);
        parameters.put("no_note", "1");        // no notes allowed in paypal (not passed back)
        parameters.put("no_shipping", "1");    // no shipping address required (local shipping used)
                
        String encodedParameters = UtilHttp.urlEncodeArgs(parameters, false);
        String redirectString = redirectUrl + "?" + encodedParameters;   
        
        // set the order in the session for cancelled orders
        request.getSession().setAttribute("PAYPAL_ORDER", orderId); 
        
        // redirect to paypal
        try {
            response.sendRedirect(redirectString);
        } catch (IOException e) {
            Debug.logError(e, "Problems redirecting to PayPal", module);
            request.setAttribute("_ERROR_MESSAGE_", "Problems connecting with PayPal, please contact customer service.");
            return "error";
        }
        
        return "success";   
    }
    
    /** PayPal Call-Back Event */
    public static String payPalIPN(HttpServletRequest request, HttpServletResponse response) {
        ServletContext application = ((ServletContext) request.getAttribute("servletContext"));
        GenericDelegator delegator = (GenericDelegator) request.getAttribute("delegator");
        LocalDispatcher dispatcher = (LocalDispatcher) request.getAttribute("dispatcher");   
        
        // get the webSiteId
        String webSiteId = CatalogWorker.getWebSiteId(request);

        // get the product store
        GenericValue productStore = ProductStoreWorker.getProductStore(request);

        // get the payment properties file
        GenericValue paymentConfig = ProductStoreWorker.getProductStorePaymentSetting(delegator, productStore.getString("productStoreId"), "EXT_PAYPAL", null, true);
        String configString = null;
        if (paymentConfig != null) {
            configString = paymentConfig.getString("paymentPropertiesPath");
        }

        if (configString == null) {
            configString = "payment.properties";
        }
               
        // get the confirm URL
        String confirmUrl = UtilProperties.getPropertyValue(configString, "payment.paypal.confirm");
        if (confirmUrl == null) {
            Debug.logError("Payment properties is not configured properly, no confirm URL defined!", module);
            request.setAttribute("_ERROR_MESSAGE_", "PayPal has not been configured, please contact customer service.");
            return "error";
        }
                
        // first verify this is valid from PayPal
        Map parametersMap = UtilHttp.getParameterMap(request);
        parametersMap.put("cmd", "_notify-validate");  
        
        // send off the confirm request     
        String confirmResp = null;

        try {
            String str = UtilHttp.urlEncodeArgs(parametersMap);
            URL u = new URL("http://www.paypal.com/cgi-bin/webscr");
            URLConnection uc = u.openConnection();
            uc.setDoOutput(true);
            uc.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
            PrintWriter pw = new PrintWriter(uc.getOutputStream());
            pw.println(str);
            pw.close();

            BufferedReader in = new BufferedReader(new InputStreamReader(uc.getInputStream()));
            confirmResp = in.readLine();
            in.close();
            Debug.logError("PayPal Verification Response: " + confirmResp, module);
        } catch (IOException e) {
            Debug.logError(e, "Problems sending verification message", module);
        }

        if (confirmResp.trim().equals("VERIFIED")) {
            // we passed verification
            Debug.logInfo("Got verification from PayPal, processing..", module);
        } else {
            Debug.logError("###### PayPal did not verify this request, need investigation!", module);
            Set keySet = parametersMap.keySet();
            Iterator i = keySet.iterator();
            while (i.hasNext()) {
                String name = (String) i.next();
                String value = request.getParameter(name);
                Debug.logError("### Param: " + name + " => " + value, module);
            }
        }