Jake Slack | 03928ae | 2014-05-13 18:41:56 -0700 | [diff] [blame] | 1 | // |
| 2 | // ======================================================================== |
| 3 | // Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd. |
| 4 | // ------------------------------------------------------------------------ |
| 5 | // All rights reserved. This program and the accompanying materials |
| 6 | // are made available under the terms of the Eclipse Public License v1.0 |
| 7 | // and Apache License v2.0 which accompanies this distribution. |
| 8 | // |
| 9 | // The Eclipse Public License is available at |
| 10 | // http://www.eclipse.org/legal/epl-v10.html |
| 11 | // |
| 12 | // The Apache License v2.0 is available at |
| 13 | // http://www.opensource.org/licenses/apache2.0.php |
| 14 | // |
| 15 | // You may elect to redistribute this code under either of these licenses. |
| 16 | // ======================================================================== |
| 17 | // |
| 18 | |
| 19 | package org.eclipse.jetty.server.handler; |
| 20 | |
| 21 | import java.io.IOException; |
| 22 | |
| 23 | import javax.servlet.ServletException; |
| 24 | import javax.servlet.http.HttpServletRequest; |
| 25 | import javax.servlet.http.HttpServletResponse; |
| 26 | |
| 27 | import org.eclipse.jetty.http.HttpHeaders; |
| 28 | import org.eclipse.jetty.server.HandlerContainer; |
| 29 | import org.eclipse.jetty.server.Request; |
| 30 | import org.eclipse.jetty.util.URIUtil; |
| 31 | |
| 32 | /* ------------------------------------------------------------ */ |
| 33 | /** Moved ContextHandler. |
| 34 | * This context can be used to replace a context that has changed |
| 35 | * location. Requests are redirected (either to a fixed URL or to a |
| 36 | * new context base). |
| 37 | */ |
| 38 | public class MovedContextHandler extends ContextHandler |
| 39 | { |
| 40 | final Redirector _redirector; |
| 41 | String _newContextURL; |
| 42 | boolean _discardPathInfo; |
| 43 | boolean _discardQuery; |
| 44 | boolean _permanent; |
| 45 | String _expires; |
| 46 | |
| 47 | public MovedContextHandler() |
| 48 | { |
| 49 | _redirector=new Redirector(); |
| 50 | setHandler(_redirector); |
| 51 | setAllowNullPathInfo(true); |
| 52 | } |
| 53 | |
| 54 | public MovedContextHandler(HandlerContainer parent, String contextPath, String newContextURL) |
| 55 | { |
| 56 | super(parent,contextPath); |
| 57 | _newContextURL=newContextURL; |
| 58 | _redirector=new Redirector(); |
| 59 | setHandler(_redirector); |
| 60 | } |
| 61 | |
| 62 | public boolean isDiscardPathInfo() |
| 63 | { |
| 64 | return _discardPathInfo; |
| 65 | } |
| 66 | |
| 67 | public void setDiscardPathInfo(boolean discardPathInfo) |
| 68 | { |
| 69 | _discardPathInfo = discardPathInfo; |
| 70 | } |
| 71 | |
| 72 | public String getNewContextURL() |
| 73 | { |
| 74 | return _newContextURL; |
| 75 | } |
| 76 | |
| 77 | public void setNewContextURL(String newContextURL) |
| 78 | { |
| 79 | _newContextURL = newContextURL; |
| 80 | } |
| 81 | |
| 82 | public boolean isPermanent() |
| 83 | { |
| 84 | return _permanent; |
| 85 | } |
| 86 | |
| 87 | public void setPermanent(boolean permanent) |
| 88 | { |
| 89 | _permanent = permanent; |
| 90 | } |
| 91 | |
| 92 | public boolean isDiscardQuery() |
| 93 | { |
| 94 | return _discardQuery; |
| 95 | } |
| 96 | |
| 97 | public void setDiscardQuery(boolean discardQuery) |
| 98 | { |
| 99 | _discardQuery = discardQuery; |
| 100 | } |
| 101 | |
| 102 | private class Redirector extends AbstractHandler |
| 103 | { |
| 104 | public void handle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException |
| 105 | { |
| 106 | if (_newContextURL==null) |
| 107 | return; |
| 108 | |
| 109 | String path=_newContextURL; |
| 110 | if (!_discardPathInfo && request.getPathInfo()!=null) |
| 111 | path=URIUtil.addPaths(path, request.getPathInfo()); |
| 112 | |
| 113 | StringBuilder location = URIUtil.hasScheme(path)?new StringBuilder():baseRequest.getRootURL(); |
| 114 | |
| 115 | location.append(path); |
| 116 | if (!_discardQuery && request.getQueryString()!=null) |
| 117 | { |
| 118 | location.append('?'); |
| 119 | String q=request.getQueryString(); |
| 120 | q=q.replaceAll("\r\n?&=","!"); |
| 121 | location.append(q); |
| 122 | } |
| 123 | |
| 124 | response.setHeader(HttpHeaders.LOCATION,location.toString()); |
| 125 | |
| 126 | if (_expires!=null) |
| 127 | response.setHeader(HttpHeaders.EXPIRES,_expires); |
| 128 | |
| 129 | response.setStatus(_permanent?HttpServletResponse.SC_MOVED_PERMANENTLY:HttpServletResponse.SC_FOUND); |
| 130 | response.setContentLength(0); |
| 131 | baseRequest.setHandled(true); |
| 132 | } |
| 133 | |
| 134 | } |
| 135 | |
| 136 | /* ------------------------------------------------------------ */ |
| 137 | /** |
| 138 | * @return the expires header value or null if no expires header |
| 139 | */ |
| 140 | public String getExpires() |
| 141 | { |
| 142 | return _expires; |
| 143 | } |
| 144 | |
| 145 | /* ------------------------------------------------------------ */ |
| 146 | /** |
| 147 | * @param expires the expires header value or null if no expires header |
| 148 | */ |
| 149 | public void setExpires(String expires) |
| 150 | { |
| 151 | _expires = expires; |
| 152 | } |
| 153 | |
| 154 | } |