| /******************************************************************************* |
| * 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.ofbiz.webapp.view; |
| |
| import java.io.IOException; |
| import javax.servlet.ServletContext; |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| |
| import org.apache.ofbiz.base.util.Debug; |
| import org.apache.ofbiz.base.util.HttpClient; |
| import org.apache.ofbiz.base.util.HttpClientException; |
| import org.apache.ofbiz.base.util.UtilValidate; |
| |
| /** |
| * ViewHandlerException - View Handler Exception |
| */ |
| public class HttpViewHandler extends AbstractViewHandler { |
| |
| public static final String module = HttpViewHandler.class.getName(); |
| |
| public void init(ServletContext context) throws ViewHandlerException { |
| } |
| |
| public void render(String name, String page, String info, String contentType, String encoding, HttpServletRequest request, HttpServletResponse response) throws ViewHandlerException { |
| // some containers call filters on EVERY request, even forwarded ones, |
| // so let it know that it came from the control servlet |
| |
| if (request == null) |
| throw new ViewHandlerException("Null HttpServletRequest object"); |
| if (UtilValidate.isEmpty(page)) |
| throw new ViewHandlerException("Null or empty source"); |
| |
| if (Debug.infoOn()) Debug.logInfo("Retreiving HTTP resource at: " + page, module); |
| try { |
| HttpClient httpClient = new HttpClient(page); |
| String pageText = httpClient.get(); |
| |
| // TODO: parse page and remove harmful tags like <HTML>, <HEAD>, <BASE>, etc - look into the OpenSymphony piece for an example |
| response.getWriter().print(pageText); |
| } catch (IOException e) { |
| throw new ViewHandlerException("IO Error in view", e); |
| } catch (HttpClientException e) { |
| throw new ViewHandlerException(e.getNonNestedMessage(), e.getNested()); |
| } |
| } |
| } |
