001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.wicket.protocol.http.servlet; 018 019import java.util.Iterator; 020import java.util.List; 021 022import javax.servlet.FilterConfig; 023 024import org.apache.wicket.protocol.http.WebApplication; 025import org.apache.wicket.util.lang.Generics; 026 027/** 028 * A very simple manager for web filter factories. 029 * 030 * @author Juergen Donnerstag 031 */ 032public class FilterFactoryManager implements Iterable<AbstractRequestWrapperFactory> 033{ 034 private List<AbstractRequestWrapperFactory> filters; 035 036 /** 037 * Construct. 038 */ 039 public FilterFactoryManager() 040 { 041 } 042 043 /** 044 * Add a filter factory 045 * 046 * @param wrapperFactory 047 * @return this 048 */ 049 public final FilterFactoryManager add(final AbstractRequestWrapperFactory wrapperFactory) 050 { 051 if (wrapperFactory != null) 052 { 053 if (filters == null) 054 { 055 filters = Generics.newArrayList(2); 056 } 057 058 filters.add(wrapperFactory); 059 } 060 061 return this; 062 } 063 064 /** 065 * Add a X-Forwarded web filter factory 066 * 067 * @param config 068 * If null, <code>WebApplication.get().getWicketFilter().getFilterConfig()</code> 069 * will be called to retrieve the config. 070 * @return this 071 */ 072 public final FilterFactoryManager addXForwardedRequestWrapperFactory(FilterConfig config) 073 { 074 if (config == null) 075 { 076 config = WebApplication.get().getWicketFilter().getFilterConfig(); 077 } 078 079 XForwardedRequestWrapperFactory factory = new XForwardedRequestWrapperFactory(); 080 factory.init(config); 081 082 return add(factory); 083 } 084 085 /** 086 * Add a Secure remote address web filter factory 087 * 088 * @param config 089 * If null, <code>WebApplication.get().getWicketFilter().getFilterConfig()</code> 090 * will be called to retrieve the config. 091 * @return this 092 */ 093 public final FilterFactoryManager addSecuredRemoteAddressRequestWrapperFactory( 094 FilterConfig config) 095 { 096 if (config == null) 097 { 098 config = WebApplication.get().getWicketFilter().getFilterConfig(); 099 } 100 101 SecuredRemoteAddressRequestWrapperFactory factory = new SecuredRemoteAddressRequestWrapperFactory(); 102 factory.init(config); 103 104 return add(factory); 105 } 106 107 /** 108 * @see java.lang.Iterable#iterator() 109 */ 110 @Override 111 public Iterator<AbstractRequestWrapperFactory> iterator() 112 { 113 return filters.iterator(); 114 } 115}