| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
| InvalidState |
|
| 1.0;1 |
| 1 | package org.apache.turbine.modules.screens.error; | |
| 2 | ||
| 3 | ||
| 4 | /* | |
| 5 | * Licensed to the Apache Software Foundation (ASF) under one | |
| 6 | * or more contributor license agreements. See the NOTICE file | |
| 7 | * distributed with this work for additional information | |
| 8 | * regarding copyright ownership. The ASF licenses this file | |
| 9 | * to you under the Apache License, Version 2.0 (the | |
| 10 | * "License"); you may not use this file except in compliance | |
| 11 | * with the License. You may obtain a copy of the License at | |
| 12 | * | |
| 13 | * http://www.apache.org/licenses/LICENSE-2.0 | |
| 14 | * | |
| 15 | * Unless required by applicable law or agreed to in writing, | |
| 16 | * software distributed under the License is distributed on an | |
| 17 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | |
| 18 | * KIND, either express or implied. See the License for the | |
| 19 | * specific language governing permissions and limitations | |
| 20 | * under the License. | |
| 21 | */ | |
| 22 | ||
| 23 | ||
| 24 | import org.apache.fulcrum.parser.ParameterParser; | |
| 25 | import org.apache.turbine.modules.Screen; | |
| 26 | import org.apache.turbine.pipeline.PipelineData; | |
| 27 | import org.apache.turbine.util.RunData; | |
| 28 | import org.apache.turbine.util.uri.TurbineURI; | |
| 29 | ||
| 30 | /** | |
| 31 | * Users will get this screen if the screen on their browser is in an | |
| 32 | * invalid state. For example, if they hit "Back" or "Reload" and | |
| 33 | * then try to submit old form data. | |
| 34 | * | |
| 35 | * If you want one of your screens to check for invalid state | |
| 36 | * then add a hidden form field called "_session_access_counter" | |
| 37 | * with the value currently stored in the session. The | |
| 38 | * SessionValidator action will check to see if it is an old | |
| 39 | * value and redirect you to this screen. | |
| 40 | * | |
| 41 | * @author <a href="mailto:mbryson@mont.mindspring.com">Dave Bryson</a> | |
| 42 | * @author <a href="mailto:hps@intermeta.de">Henning P. Schmiedehausen</a> | |
| 43 | * @author <a href="mailto:peter@courcoux.biz">Peter Courcoux</a> | |
| 44 | * @version $Id: InvalidState.java 1854797 2019-03-04 20:41:39Z tv $ | |
| 45 | */ | |
| 46 | 0 | public class InvalidState implements Screen |
| 47 | { | |
| 48 | /** | |
| 49 | * Build the Screen. | |
| 50 | * | |
| 51 | * @param pipelineData Turbine information. | |
| 52 | * @throws Exception a generic exception. | |
| 53 | */ | |
| 54 | @Override | |
| 55 | public String doBuild(PipelineData pipelineData) | |
| 56 | throws Exception | |
| 57 | { | |
| 58 | 0 | RunData data = pipelineData.getRunData(); |
| 59 | 0 | StringBuilder body = new StringBuilder(); |
| 60 | 0 | body.append("<body>"); |
| 61 | ||
| 62 | 0 | StringBuilder message = new StringBuilder(); |
| 63 | 0 | StringBuilder sb = new StringBuilder(); |
| 64 | 0 | sb.append("<b>There has been an error.</b>") |
| 65 | 0 | .append("<p>") |
| 66 | 0 | .append("- If you used the browser \"Back\" or \"Reload\"") |
| 67 | 0 | .append(" buttons please use the navigation buttons we provide") |
| 68 | 0 | .append(" within the screen.") |
| 69 | 0 | .append("<p>") |
| 70 | 0 | .append("Please click "); |
| 71 | ||
| 72 | 0 | message.append(sb.toString()); |
| 73 | ParameterParser pp; | |
| 74 | 0 | pp = (ParameterParser) data.getUser().getTemp("prev_parameters"); |
| 75 | 0 | pp.remove("_session_access_counter"); |
| 76 | ||
| 77 | 0 | TurbineURI back = new TurbineURI(data,(String) data.getUser().getTemp("prev_screen")); |
| 78 | 0 | back.addPathInfo(pp); |
| 79 | 0 | message.append( "<a href=\"" ).append(back.getRelativeLink()).append("\">here</a>"); |
| 80 | 0 | message.append(" to return the the screen you were working on."); |
| 81 | ||
| 82 | 0 | body.append(message); |
| 83 | 0 | body.append("</body>"); |
| 84 | 0 | return body.toString(); |
| 85 | } | |
| 86 | } |