com.liferay.portal.spring.servlet.RemotingServlet.java Source code

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Here is the source code for com.liferay.portal.spring.servlet.RemotingServlet.java

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/**
 * Copyright (c) 2000-2011 Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library 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 Lesser General Public License for more
 * details.
 */

package com.liferay.portal.spring.servlet;

import com.liferay.portal.kernel.log.Log;
import com.liferay.portal.kernel.log.LogFactoryUtil;
import com.liferay.portal.kernel.util.GetterUtil;
import com.liferay.portal.model.User;
import com.liferay.portal.security.auth.PrincipalThreadLocal;
import com.liferay.portal.security.permission.PermissionChecker;
import com.liferay.portal.security.permission.PermissionCheckerFactoryUtil;
import com.liferay.portal.security.permission.PermissionThreadLocal;
import com.liferay.portal.service.UserLocalServiceUtil;
import com.liferay.portal.spring.context.TunnelApplicationContext;
import com.liferay.portal.util.PortalInstances;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.web.servlet.DispatcherServlet;

/**
 * @author Brian Wing Shun Chan
 */
public class RemotingServlet extends DispatcherServlet {

    public static final String CONTEXT_CLASS = TunnelApplicationContext.class.getName();

    public static final String CONTEXT_CONFIG_LOCATION = "/WEB-INF/remoting-servlet.xml,classpath*:WEB-INF/remoting-servlet-ext.xml";

    public Class<?> getContextClass() {
        try {
            return Class.forName(CONTEXT_CLASS);
        } catch (Exception e) {
            _log.error(e);
        }

        return null;
    }

    public String getContextConfigLocation() {
        return CONTEXT_CONFIG_LOCATION;
    }

    public void service(HttpServletRequest request, HttpServletResponse response) throws ServletException {

        try {
            PortalInstances.getCompanyId(request);

            String remoteUser = request.getRemoteUser();

            if (_log.isDebugEnabled()) {
                _log.debug("Remote user " + remoteUser);
            }

            if (remoteUser != null) {
                PrincipalThreadLocal.setName(remoteUser);

                long userId = GetterUtil.getLong(remoteUser);

                User user = UserLocalServiceUtil.getUserById(userId);

                PermissionChecker permissionChecker = PermissionCheckerFactoryUtil.create(user, true);

                PermissionThreadLocal.setPermissionChecker(permissionChecker);
            } else {
                if (_log.isWarnEnabled()) {
                    _log.warn("User id is not provided. An exception will be "
                            + "thrown  if a protected method is accessed.");
                }
            }

            super.service(request, response);
        } catch (Exception e) {
            throw new ServletException(e);
        }
    }

    private static Log _log = LogFactoryUtil.getLog(RemotingServlet.class);

}