| /* |
| * $Id$ |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * 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 |
| * |
| * 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.apache.struts2.result; |
| |
| import java.util.Collection; |
| import java.util.List; |
| import java.util.Map; |
| |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| |
| import org.apache.logging.log4j.LogManager; |
| import org.apache.logging.log4j.Logger; |
| import org.apache.struts2.ServletActionContext; |
| import org.apache.struts2.dispatcher.mapper.ActionMapping; |
| import org.apache.struts2.dispatcher.Dispatcher; |
| import org.apache.struts2.result.ServletRedirectResult; |
| import org.apache.struts2.views.util.UrlHelper; |
| |
| import com.opensymphony.xwork2.ActionContext; |
| import com.opensymphony.xwork2.ActionInvocation; |
| import com.opensymphony.xwork2.config.entities.ResultConfig; |
| import com.opensymphony.xwork2.inject.Inject; |
| |
| public class HttpsOffloadAwareServletRedirectResult extends ServletRedirectResult { |
| private static final long serialVersionUID = -5384946213381645549L; |
| private static final Logger LOG = LogManager.getLogger(HttpsOffloadAwareServletRedirectResult.class); |
| |
| private UrlHelper urlHelper; |
| |
| @Inject |
| public void setUrlHelper(UrlHelper urlHelper) { |
| this.urlHelper = urlHelper; |
| } |
| |
| /** |
| * Redirects to the location specified by calling |
| * {@link HttpServletResponse#sendRedirect(String)}. |
| * |
| * @param finalLocation |
| * the location to redirect to. |
| * @param invocation |
| * an encapsulation of the action execution state. |
| * @throws Exception |
| * if an error occurs when redirecting. |
| */ |
| protected void doExecute(String finalLocation, ActionInvocation invocation) throws Exception { |
| ActionContext ctx = invocation.getInvocationContext(); |
| HttpServletRequest request = (HttpServletRequest) ctx.get(ServletActionContext.HTTP_REQUEST); |
| HttpServletResponse response = (HttpServletResponse) ctx.get(ServletActionContext.HTTP_RESPONSE); |
| |
| if (isPathUrl(finalLocation)) { |
| if (!finalLocation.startsWith("/")) { |
| ActionMapping mapping = actionMapper.getMapping(request, Dispatcher.getInstance().getConfigurationManager()); |
| String namespace = null; |
| if (mapping != null) { |
| namespace = mapping.getNamespace(); |
| } |
| |
| if ((namespace != null) && (namespace.length() > 0) && (!"/".equals(namespace))) { |
| finalLocation = namespace + "/" + finalLocation; |
| } else { |
| finalLocation = "/" + finalLocation; |
| } |
| } |
| |
| // if the URL's are relative to the servlet context, append the |
| // servlet context path |
| if (prependServletContext && (request.getContextPath() != null) |
| && (request.getContextPath().length() > 0)) { |
| finalLocation = request.getContextPath() + finalLocation; |
| } |
| |
| finalLocation = fixSchemeIfNeeded(finalLocation, request); |
| } |
| ResultConfig resultConfig = invocation.getProxy().getConfig().getResults().get(invocation.getResultCode()); |
| if (resultConfig != null) { |
| Map<String, String> resultConfigParams = resultConfig.getParams(); |
| |
| List<String> prohibitedResultParams = getProhibitedResultParams(); |
| for (Map.Entry<String, String> e : resultConfigParams.entrySet()) { |
| if (!prohibitedResultParams.contains(e.getKey())) { |
| Collection<String> values = conditionalParseCollection(e.getValue(), invocation, |
| suppressEmptyParameters); |
| if (!suppressEmptyParameters || !values.isEmpty()) { |
| requestParameters.put(e.getKey(), values); |
| } |
| } |
| } |
| } |
| |
| StringBuilder tmpLocation = new StringBuilder(finalLocation); |
| urlHelper.buildParametersString(requestParameters, tmpLocation, "&"); |
| |
| // add the anchor |
| if (anchor != null) { |
| tmpLocation.append('#').append(anchor); |
| } |
| |
| finalLocation = response.encodeRedirectURL(tmpLocation.toString()); |
| |
| LOG.debug("Redirecting to finalLocation: {}", finalLocation); |
| |
| sendRedirect(response, finalLocation); |
| } |
| |
| private String fixSchemeIfNeeded(String location, HttpServletRequest request) { |
| if ("https".equals(request.getHeader("X-Forwarded-Proto"))) { |
| LOG.debug("https offloading happened, fixing redirectlocation"); |
| StringBuilder fixedLocation = new StringBuilder(); |
| fixedLocation.append("https"); |
| fixedLocation.append("://"); |
| fixedLocation.append(request.getServerName()); |
| if (request.getServerPort() != 80) { |
| fixedLocation.append(':'); |
| fixedLocation.append(request.getServerPort()); |
| } |
| fixedLocation.append(location); |
| |
| return fixedLocation.toString(); |
| } else { |
| return location; |
| } |
| } |
| |
| } |