source: branches/TaskRewrite/src/plugins/acegi-0.5.1/src/groovy/org/codehaus/groovy/grails/plugins/springsecurity/LogoutFilterFactoryBean.groovy @ 58

/* Copyright 2006-2009 the original author or authors.
 *
 * Licensed 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
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.codehaus.groovy.grails.plugins.springsecurity

import javax.servlet.http.HttpServletRequest
import javax.servlet.http.HttpServletResponse

import org.springframework.beans.factory.FactoryBean
import org.springframework.beans.factory.InitializingBean
import org.springframework.beans.factory.annotation.Required
import org.springframework.security.ui.logout.LogoutFilter
import org.springframework.security.ui.logout.LogoutHandler

/**
 * Configures a {@link LogoutFilter} given a list of {@link LogoutHandler}s.
 *
 * @author <a href='mailto:beckwithb@studentsonly.com'>Burt Beckwith</a>
 */
class LogoutFilterFactoryBean implements FactoryBean, InitializingBean {

        private List<LogoutHandler> _handlers
        private LogoutFilter _logoutFilter
        private String _logoutSuccessUrl

        /**
         * {@inheritDoc}
         * @see org.springframework.beans.factory.FactoryBean#getObject()
         */
        LogoutFilter getObject() {
                return _logoutFilter
        }

        /**
         * {@inheritDoc}
         * @see org.springframework.beans.factory.FactoryBean#getObjectType()
         */
        Class<LogoutFilter> getObjectType() {
                return LogoutFilter
        }

        /**
         * {@inheritDoc}
         * @see org.springframework.beans.factory.FactoryBean#isSingleton()
         */
        boolean isSingleton() {
                return true
        }

        /**
         * {@inheritDoc}
         * @see org.springframework.beans.factory.InitializingBean#afterPropertiesSet()
         */
        void afterPropertiesSet() {
                _logoutFilter = new FixRedirectLogoutFilter(_logoutSuccessUrl, _handlers as LogoutHandler[])
        }

        /**
         * Dependency injection for the logout success url.
         * @param logoutSuccessUrl  the url
         */
        @Required
        void setLogoutSuccessUrl(String logoutSuccessUrl) {
                _logoutSuccessUrl = logoutSuccessUrl
        }

        /**
         * Dependency injection for the handlers.
         * @param handlers  the handlers
         */
        @Required
        void setHandlers(List<LogoutHandler> handlers) {
                _handlers = handlers
        }
}

/**
 * Overrides the default redirect behavior to use {@link RedirectUtils#sendRedirect(HttpServletRequest, HttpServletResponse, String)}.
 */
class FixRedirectLogoutFilter extends LogoutFilter {

        FixRedirectLogoutFilter(String logoutSuccessUrl, LogoutHandler[] handlers) {
                super(logoutSuccessUrl, handlers)
        }

        /**
         * {@inheritDoc}
         * @see org.springframework.security.ui.logout.LogoutFilter#sendRedirect(
         *      javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse, java.lang.String)
         */
        @Override
        protected void sendRedirect(
                        HttpServletRequest request,
                        HttpServletResponse response,
                        String url) throws IOException {
                RedirectUtils.sendRedirect(request, response, url)
        }
}