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* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
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package org.ofbiz.accounting.thirdparty.paypal;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.math.BigDecimal;
import java.net.URL;
import java.net.URLConnection;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Set;
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.Delegator;
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.store.ProductStoreWorker;
import org.ofbiz.service.GenericServiceException;
import org.ofbiz.service.LocalDispatcher;
import org.ofbiz.service.ModelService;
public class PayPalEvents {
public static final String resource = "AccountingUiLabels";
public static final String resourceErr = "AccountingErrorUiLabels";
public static final String commonResource = "CommonUiLabels";
public static final String module = PayPalEvents.class.getName();
/** Initiate PayPal Request */
public static String callPayPal(HttpServletRequest request, HttpServletResponse response) {
Locale locale = UtilHttp.getLocale(request);
Delegator delegator = (Delegator) request.getAttribute("delegator");
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_", UtilProperties.getMessage(resourceErr, "payPalEvents.problemsGettingOrderHeader", locale));
return "error";
}
// get the order total
String orderTotal = orderHeader.getBigDecimal("grandTotal").toPlainString();
String currencyUom = orderHeader.getString("currencyUom");
// get the product store
GenericValue productStore = ProductStoreWorker.getProductStore(request);
if (productStore == null) {
Debug.logError("ProductStore is null", module);
request.setAttribute("_ERROR_MESSAGE_", UtilProperties.getMessage(resourceErr, "payPalEvents.problemsGettingMerchantConfiguration", locale));
return "error";
}
// get the payment properties file
GenericValue paymentConfig = ProductStoreWorker.getProductStorePaymentSetting(delegator, productStore.getString("productStoreId"), "EXT_PAYPAL", null, true);
String configString = null;
String paymentGatewayConfigId = null;
if (paymentConfig != null) {
paymentGatewayConfigId = paymentConfig.getString("paymentGatewayConfigId");
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 = UtilProperties.getMessage(resource, "AccountingOrderNr", locale) + orderId + " " +
(company != null ? UtilProperties.getMessage(commonResource, "CommonFrom", locale) + " "+ company : "");
String itemNumber = "0";
// get the redirect url
String redirectUrl = getPaymentGatewayConfigValue(delegator, paymentGatewayConfigId, "redirectUrl", configString, "payment.paypal.redirect");
// get the notify url
String notifyUrl = getPaymentGatewayConfigValue(delegator, paymentGatewayConfigId, "notifyUrl", configString, "payment.paypal.notify");
// get the return urls
String returnUrl = getPaymentGatewayConfigValue(delegator, paymentGatewayConfigId, "returnUrl", configString, "payment.paypal.return");
// get the cancel return urls
String cancelReturnUrl = getPaymentGatewayConfigValue(delegator, paymentGatewayConfigId, "cancelReturnUrl", configString, "payment.paypal.cancelReturn");
// get the image url
String imageUrl = getPaymentGatewayConfigValue(delegator, paymentGatewayConfigId, "imageUrl", configString, "payment.paypal.image");
// get the paypal account
String payPalAccount = getPaymentGatewayConfigValue(delegator, paymentGatewayConfigId, "businessEmail", configString, "payment.paypal.business");
if (UtilValidate.isEmpty(redirectUrl)
|| UtilValidate.isEmpty(notifyUrl)
|| UtilValidate.isEmpty(returnUrl)
|| UtilValidate.isEmpty(imageUrl)
|| UtilValidate.isEmpty(payPalAccount)) {
Debug.logError("Payment properties is not configured properly, some notify URL from PayPal is not correctly defined!", module);
request.setAttribute("_ERROR_MESSAGE_", UtilProperties.getMessage(resourceErr, "payPalEvents.problemsGettingMerchantConfiguration", locale));
return "error";
}
// create the redirect string
Map <String, Object> parameters = new LinkedHashMap <String, Object>();
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("currency_code", currencyUom);
parameters.put("return", returnUrl);
if (UtilValidate.isNotEmpty(cancelReturnUrl)) 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_", UtilProperties.getMessage(resourceErr, "payPalEvents.problemsConnectingWithPayPal", locale));
return "error";
}
return "success";
}
/** PayPal Call-Back Event */
public static String payPalIPN(HttpServletRequest request, HttpServletResponse response) {
Locale locale = UtilHttp.getLocale(request);
Delegator delegator = (Delegator) request.getAttribute("delegator");
LocalDispatcher dispatcher = (LocalDispatcher) request.getAttribute("dispatcher");
// get the product store
GenericValue productStore = ProductStoreWorker.getProductStore(request);
if (productStore == null) {
Debug.logError("ProductStore is null", module);
request.setAttribute("_ERROR_MESSAGE_", UtilProperties.getMessage(resourceErr, "payPalEvents.problemsGettingMerchantConfiguration", locale));
return "error";
}
// get the payment properties file
GenericValue paymentConfig = ProductStoreWorker.getProductStorePaymentSetting(delegator, productStore.getString("productStoreId"), "EXT_PAYPAL", null, true);
String configString = null;
String paymentGatewayConfigId = null;
if (paymentConfig != null) {
paymentGatewayConfigId = paymentConfig.getString("paymentGatewayConfigId");
configString = paymentConfig.getString("paymentPropertiesPath");
}
if (configString == null) {
configString = "payment.properties";
}
// get the confirm URL
String confirmUrl = getPaymentGatewayConfigValue(delegator, paymentGatewayConfigId, "confirmUrl", configString, "payment.paypal.confirm");
// get the redirect URL
String redirectUrl = getPaymentGatewayConfigValue(delegator, paymentGatewayConfigId, "redirectUrl", configString, "payment.paypal.redirect");
if (UtilValidate.isEmpty(confirmUrl) || UtilValidate.isEmpty(redirectUrl)) {
Debug.logError("Payment properties is not configured properly, no confirm URL defined!", module);
request.setAttribute("_ERROR_MESSAGE_", UtilProperties.getMessage(resourceErr, "payPalEvents.problemsGettingMerchantConfiguration", locale));
return "error";
}
// first verify this is valid from PayPal
Map <String, Object> 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(redirectUrl);
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);
}
Debug.logInfo("Got verification from PayPal, processing..", module);
boolean verified = false;
Set <String> keySet = parametersMap.keySet();
Iterator <String> i = keySet.iterator();
while (i.hasNext()) {
String name = i.next();
String value = request.getParameter(name);
Debug.logError("### Param: " + name + " => " + value, module);
if (UtilValidate.isNotEmpty(name) && "payer_status".equalsIgnoreCase(name) &&
UtilValidate.isNotEmpty(value) && "verified".equalsIgnoreCase(value)) {
verified = true;
}
}
if (!verified) {
Debug.logError("###### PayPal did not verify this request, need investigation!", module);
}
// get the system user
GenericValue userLogin = null;
try {
userLogin = delegator.findByPrimaryKey("UserLogin", UtilMisc.toMap("userLoginId", "system"));
} catch (GenericEntityException e) {
Debug.logError(e, "Cannot get UserLogin for: system; cannot continue", module);
request.setAttribute("_ERROR_MESSAGE_", UtilProperties.getMessage(resourceErr, "payPalEvents.problemsGettingAuthenticationUser", locale));
return "error";
}
// get the orderId
String orderId = request.getParameter("invoice");
// get the order header
GenericValue orderHeader = null;
if (UtilValidate.isNotEmpty(orderId)) {
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_", UtilProperties.getMessage(resourceErr, "payPalEvents.problemsGettingOrderHeader", locale));
return "error";
}
} else {
Debug.logError("PayPal did not callback with a valid orderId!", module);
request.setAttribute("_ERROR_MESSAGE_", UtilProperties.getMessage(resourceErr, "payPalEvents.noValidOrderIdReturned", locale));
return "error";
}
if (orderHeader == null) {
Debug.logError("Cannot get the order header for order: " + orderId, module);
request.setAttribute("_ERROR_MESSAGE_", UtilProperties.getMessage(resourceErr, "payPalEvents.problemsGettingOrderHeader", locale));
return "error";
}
/* get payment data
String paymentCurrency = request.getParameter("mc_currency");
String paymentAmount = request.getParameter("mc_gross");
String paymentFee = request.getParameter("mc_fee");
String transactionId = request.getParameter("txn_id");
*/
// get the transaction status
String paymentStatus = request.getParameter("payment_status");
// attempt to start a transaction
boolean okay = true;
boolean beganTransaction = false;
try {
beganTransaction = TransactionUtil.begin();
if (paymentStatus.equals("Completed")) {
okay = OrderChangeHelper.approveOrder(dispatcher, userLogin, orderId);
} else if (paymentStatus.equals("Failed") || paymentStatus.equals("Denied")) {
okay = OrderChangeHelper.cancelOrder(dispatcher, userLogin, orderId);
}
if (okay) {
// set the payment preference
okay = setPaymentPreferences(delegator, dispatcher, userLogin, orderId, request);
}
} catch (Exception e) {
String errMsg = "Error handling PayPal notification";
Debug.logError(e, errMsg, module);
try {
TransactionUtil.rollback(beganTransaction, errMsg, e);
} catch (GenericTransactionException gte2) {
Debug.logError(gte2, "Unable to rollback transaction", module);
}
} finally {
if (!okay) {
try {
TransactionUtil.rollback(beganTransaction, "Failure in processing PayPal callback", null);
} catch (GenericTransactionException gte) {
Debug.logError(gte, "Unable to rollback transaction", module);
}
} else {
try {
TransactionUtil.commit(beganTransaction);
} catch (GenericTransactionException gte) {
Debug.logError(gte, "Unable to commit transaction", module);
}
}
}
if (okay) {
// attempt to release the offline hold on the order (workflow)
OrderChangeHelper.releaseInitialOrderHold(dispatcher, orderId);
// call the email confirm service
Map <String, String> emailContext = UtilMisc.toMap("orderId", orderId);
try {
dispatcher.runSync("sendOrderConfirmation", emailContext);
} catch (GenericServiceException e) {
Debug.logError(e, "Problems sending email confirmation", module);
}
}
return "success";
}
/** Event called when customer cancels a paypal order */
public static String cancelPayPalOrder(HttpServletRequest request, HttpServletResponse response) {
Locale locale = UtilHttp.getLocale(request);
LocalDispatcher dispatcher = (LocalDispatcher) request.getAttribute("dispatcher");
GenericValue userLogin = (GenericValue) request.getSession().getAttribute("userLogin");
// get the stored order id from the session
String orderId = (String) request.getSession().getAttribute("PAYPAL_ORDER");
// attempt to start a transaction
boolean beganTransaction = false;
try {
beganTransaction = TransactionUtil.begin();
} catch (GenericTransactionException gte) {
Debug.logError(gte, "Unable to begin transaction", module);
}
// cancel the order
boolean okay = OrderChangeHelper.cancelOrder(dispatcher, userLogin, orderId);
if (okay) {
try {
TransactionUtil.commit(beganTransaction);
} catch (GenericTransactionException gte) {
Debug.logError(gte, "Unable to commit transaction", module);
}
} else {
try {
TransactionUtil.rollback(beganTransaction, "Failure in processing PayPal cancel callback", null);
} catch (GenericTransactionException gte) {
Debug.logError(gte, "Unable to rollback transaction", module);
}
}
// attempt to release the offline hold on the order (workflow)
if (okay)
OrderChangeHelper.releaseInitialOrderHold(dispatcher, orderId);
request.setAttribute("_EVENT_MESSAGE_", UtilProperties.getMessage(resourceErr, "payPalEvents.previousPayPalOrderHasBeenCancelled", locale));
return "success";
}
private static boolean setPaymentPreferences(Delegator delegator, LocalDispatcher dispatcher, GenericValue userLogin, String orderId, HttpServletRequest request) {
Debug.logVerbose("Setting payment prefrences..", module);
List <GenericValue> paymentPrefs = null;
try {
Map <String, String> paymentFields = UtilMisc.toMap("orderId", orderId, "statusId", "PAYMENT_NOT_RECEIVED");
paymentPrefs = delegator.findByAnd("OrderPaymentPreference", paymentFields);
} catch (GenericEntityException e) {
Debug.logError(e, "Cannot get payment preferences for order #" + orderId, module);
return false;
}
if (paymentPrefs.size() > 0) {
Iterator <GenericValue> i = paymentPrefs.iterator();
while (i.hasNext()) {
GenericValue pref = i.next();
boolean okay = setPaymentPreference(dispatcher, userLogin, pref, request);
if (!okay)
return false;
}
}
return true;
}
private static boolean setPaymentPreference(LocalDispatcher dispatcher, GenericValue userLogin, GenericValue paymentPreference, HttpServletRequest request) {
Locale locale = UtilHttp.getLocale(request);
String paymentDate = request.getParameter("payment_date");
String paymentType = request.getParameter("payment_type");
String paymentAmount = request.getParameter("mc_gross");
String paymentStatus = request.getParameter("payment_status");
String transactionId = request.getParameter("txn_id");
List <GenericValue> toStore = new LinkedList <GenericValue> ();
// PayPal returns the timestamp in the format 'hh:mm:ss Jan 1, 2000 PST'
// Parse this into a valid Timestamp Object
SimpleDateFormat sdf = new SimpleDateFormat("hh:mm:ss MMM d, yyyy z");
java.sql.Timestamp authDate = null;
try {
authDate = new java.sql.Timestamp(sdf.parse(paymentDate).getTime());
} catch (ParseException e) {
Debug.logError(e, "Cannot parse date string: " + paymentDate, module);
authDate = UtilDateTime.nowTimestamp();
} catch (NullPointerException e) {
Debug.logError(e, "Cannot parse date string: " + paymentDate, module);
authDate = UtilDateTime.nowTimestamp();
}
paymentPreference.set("maxAmount", new BigDecimal(paymentAmount));
if (paymentStatus.equals("Completed")) {
paymentPreference.set("statusId", "PAYMENT_RECEIVED");
} else if (paymentStatus.equals("Pending")) {
paymentPreference.set("statusId", "PAYMENT_NOT_RECEIVED");
} else {
paymentPreference.set("statusId", "PAYMENT_CANCELLED");
}
toStore.add(paymentPreference);
Delegator delegator = paymentPreference.getDelegator();
// create the PaymentGatewayResponse
String responseId = delegator.getNextSeqId("PaymentGatewayResponse");
GenericValue response = delegator.makeValue("PaymentGatewayResponse");
response.set("paymentGatewayResponseId", responseId);
response.set("paymentServiceTypeEnumId", "PRDS_PAY_EXTERNAL");
response.set("orderPaymentPreferenceId", paymentPreference.get("orderPaymentPreferenceId"));
response.set("paymentMethodTypeId", paymentPreference.get("paymentMethodTypeId"));
response.set("paymentMethodId", paymentPreference.get("paymentMethodId"));
// set the auth info
response.set("amount", new BigDecimal(paymentAmount));
response.set("referenceNum", transactionId);
response.set("gatewayCode", paymentStatus);
response.set("gatewayFlag", paymentStatus.substring(0,1));
response.set("gatewayMessage", paymentType);
response.set("transactionDate", authDate);
toStore.add(response);
try {
delegator.storeAll(toStore);
} catch (GenericEntityException e) {
Debug.logError(e, "Cannot set payment preference/payment info", module);
return false;
}
// create a payment record too
Map <String, Object> results = null;
try {
String comment = UtilProperties.getMessage(resource, "AccountingPaymentReceiveViaPayPal", locale);
results = dispatcher.runSync("createPaymentFromPreference", UtilMisc.toMap("userLogin", userLogin,
"orderPaymentPreferenceId", paymentPreference.get("orderPaymentPreferenceId"), "comments", comment));
} catch (GenericServiceException e) {
Debug.logError(e, "Failed to execute service createPaymentFromPreference", module);
request.setAttribute("_ERROR_MESSAGE_", UtilProperties.getMessage(resourceErr, "payPalEvents.failedToExecuteServiceCreatePaymentFromPreference", locale));
return false;
}
if ((results == null) || (results.get(ModelService.RESPONSE_MESSAGE).equals(ModelService.RESPOND_ERROR))) {
Debug.logError((String) results.get(ModelService.ERROR_MESSAGE), module);
request.setAttribute("_ERROR_MESSAGE_", results.get(ModelService.ERROR_MESSAGE));
return false;
}
return true;
}
private static String getPaymentGatewayConfigValue(Delegator delegator, String paymentGatewayConfigId, String paymentGatewayConfigParameterName,
String resource, String parameterName) {
String returnValue = "";
if (UtilValidate.isNotEmpty(paymentGatewayConfigId)) {
try {
GenericValue payPal = delegator.findOne("PaymentGatewayPayPal", UtilMisc.toMap("paymentGatewayConfigId", paymentGatewayConfigId), false);
if (UtilValidate.isNotEmpty(payPal)) {
Object payPalField = payPal.get(paymentGatewayConfigParameterName);
if (payPalField != null) {
returnValue = payPalField.toString().trim();
}
}
} catch (GenericEntityException e) {
Debug.logError(e, module);
}
} else {
String value = UtilProperties.getPropertyValue(resource, parameterName);
if (value != null) {
returnValue = value.trim();
}
}
return returnValue;
}
}