blob: 8eb3f95df70814d535f65c9c9db4c5f611b048ee (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
//
// ========================================================================
// Copyright (c) 1995-2016 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
//
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
//
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
//
package org.eclipse.jetty.rewrite.handler;
import java.io.IOException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Abstract rule to use as a base class for rules that match with a regular expression.
*/
public abstract class RegexRule extends Rule
{
protected Pattern _regex;
/* ------------------------------------------------------------ */
/**
* Sets the regular expression string used to match with string URI.
*
* @param regex the regular expression.
*/
public void setRegex(String regex)
{
_regex=Pattern.compile(regex);
}
/* ------------------------------------------------------------ */
/**
* @return get the regular expression
*/
public String getRegex()
{
return _regex==null?null:_regex.pattern();
}
/* ------------------------------------------------------------ */
@Override
public String matchAndApply(String target, HttpServletRequest request, HttpServletResponse response) throws IOException
{
Matcher matcher=_regex.matcher(target);
boolean matches = matcher.matches();
if (matches)
return apply(target,request,response, matcher);
return null;
}
/* ------------------------------------------------------------ */
/**
* Apply this rule to the request/response pair.
* Called by {@link #matchAndApply(String, HttpServletRequest, HttpServletResponse)} if the regex matches.
* @param target field to attempt match
* @param request request object
* @param response response object
* @param matcher The Regex matcher that matched the request (with capture groups available for replacement).
* @return The target (possible updated).
* @throws IOException exceptions dealing with operating on request or response objects
*/
protected abstract String apply(String target, HttpServletRequest request, HttpServletResponse response, Matcher matcher) throws IOException;
/* ------------------------------------------------------------ */
/**
* Returns the regular expression string.
*/
@Override
public String toString()
{
return super.toString()+"["+_regex+"]";
}
}
|
