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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.HttpHeader;
28 import org.eclipse.jetty.server.HandlerContainer;
29 import org.eclipse.jetty.server.Request;
30 import org.eclipse.jetty.util.URIUtil;
31
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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(HttpHeader.LOCATION.asString(),location.toString());
125
126 if (_expires!=null)
127 response.setHeader(HttpHeader.EXPIRES.asString(),_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
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140 public String getExpires()
141 {
142 return _expires;
143 }
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148
149 public void setExpires(String expires)
150 {
151 _expires = expires;
152 }
153
154 }