com.rivetlogic.ecommerce.paypal.PaypalUtil.java Source code

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Here is the source code for com.rivetlogic.ecommerce.paypal.PaypalUtil.java

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/**
 * Copyright (C) 2005-2016 Rivet Logic Corporation.
 * 
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free Software
 * Foundation; version 3 of the License.
 * 
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
 * details.
 * 
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc., 51
 * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 */

package com.rivetlogic.ecommerce.paypal;

import com.liferay.portal.kernel.log.Log;
import com.liferay.portal.kernel.log.LogFactoryUtil;
import com.liferay.portal.kernel.util.HttpUtil;
import com.liferay.portal.kernel.util.StringPool;
import com.liferay.portal.kernel.util.WebKeys;
import com.liferay.portal.theme.ThemeDisplay;
import com.rivetlogic.ecommerce.beans.ShoppingCartPrefsBean;
import com.rivetlogic.ecommerce.model.ShoppingOrder;

import javax.portlet.ActionRequest;
import javax.portlet.ActionResponse;

/**
 * 
 * @author joseross
 *
 */
public class PaypalUtil {

    private static final Log LOG = LogFactoryUtil.getLog(PaypalUtil.class);

    public static String getPaypalRedirect(ActionRequest request, ActionResponse response,
            ShoppingOrder shoppingOrder) {
        ShoppingCartPrefsBean prefsBean = new ShoppingCartPrefsBean(request);

        if (prefsBean.isPaypalEnabled()) {
            ThemeDisplay themeDisplay = (ThemeDisplay) request.getAttribute(WebKeys.THEME_DISPLAY);
            String portalUrl = themeDisplay.getPortalURL();
            String returnUrl = portalUrl + request.getParameter(WebKeys.REDIRECT);
            String notifyUrl = portalUrl + PaypalConstants.NOTIFY_ACTION_PATH;
            String paypalEmail = prefsBean.getPaypalEmail();
            String orderId = Long.toString(shoppingOrder.getOrderId());
            double orderTotal = shoppingOrder.getTotal();
            String[] names = shoppingOrder.getCustomerName().split(StringPool.SPACE);
            String firstName = names[0];
            String lastName = names.length > 1 ? names[1] : StringPool.BLANK;

            StringBuilder sb = new StringBuilder();
            sb.append(PaypalConstants.PAYPAL_ENDPOINT).append(StringPool.QUESTION);
            formatParam(sb, PaypalConstants.PARAM_CMD, PaypalConstants.CMD_XCLICK);
            formatParam(sb, PaypalConstants.PARAM_BUSINESS, paypalEmail);
            formatParam(sb, PaypalConstants.PARAM_ITEM_NAME, orderId);
            formatParam(sb, PaypalConstants.PARAM_ITEM_NUMBER, orderId);
            formatParam(sb, PaypalConstants.PARAM_INVOICE, orderId);
            formatParam(sb, PaypalConstants.PARAM_AMOUNT, orderTotal);
            formatParam(sb, PaypalConstants.PARAM_RETURN, returnUrl);
            formatParam(sb, PaypalConstants.PARAM_NOTIFY_URL, notifyUrl);
            formatParam(sb, PaypalConstants.PARAM_FIRST_NAME, firstName);
            formatParam(sb, PaypalConstants.PARAM_LAST_NAME, lastName);
            formatParam(sb, PaypalConstants.PARAM_EMAIL, shoppingOrder.getCustomerEmail());
            formatParam(sb, PaypalConstants.PARAM_ADDRESS1, shoppingOrder.getShippingAddress1());
            formatParam(sb, PaypalConstants.PARAM_CITY, shoppingOrder.getShippingCity());
            formatParam(sb, PaypalConstants.PARAM_STATE, shoppingOrder.getShippingStateProvince());
            formatParam(sb, PaypalConstants.PARAM_ZIP, shoppingOrder.getShippingPostalCode());
            formatParam(sb, PaypalConstants.PARAM_NO_NOTE, "1");
            formatParam(sb, PaypalConstants.PARAM_CURRENCY, PaypalConstants.CURRENCY_USD);

            if (LOG.isDebugEnabled())
                LOG.debug("Paypal URL: " + sb);

            return sb.toString();
        } else {
            return null;
        }
    }

    private static void formatParam(StringBuilder sb, String name, Object value) {
        if (!StringPool.QUESTION.equals(sb.subSequence(sb.length() - 1, sb.length() - 1)))
            sb.append(StringPool.AMPERSAND);
        sb.append(String.format("%s=%s", name, HttpUtil.encodeURL(value.toString())));
    }

}