01: /*
02: * Copyright (c) 1998-2008 Caucho Technology -- all rights reserved
03: *
04: * This file is part of Resin(R) Open Source
05: *
06: * Each copy or derived work must preserve the copyright notice and this
07: * notice unmodified.
08: *
09: * Resin Open Source is free software; you can redistribute it and/or modify
10: * it under the terms of the GNU General Public License as published by
11: * the Free Software Foundation; either version 2 of the License, or
12: * (at your option) any later version.
13: *
14: * Resin Open Source is distributed in the hope that it will be useful,
15: * but WITHOUT ANY WARRANTY; without even the implied warranty of
16: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17: * of NON-INFRINGEMENT. See the GNU General Public License for more
18: * details.
19: *
20: * You should have received a copy of the GNU General Public License
21: * along with Resin Open Source; if not, write to the
22: *
23: * Free Software Foundation, Inc.
24: * 59 Temple Place, Suite 330
25: * Boston, MA 02111-1307 USA
26: *
27: * @author Sam
28: */
29:
30: package com.caucho.server.rewrite;
31:
32: import javax.servlet.http.Cookie;
33: import javax.servlet.http.HttpServletRequest;
34: import javax.servlet.http.HttpServletResponse;
35: import javax.annotation.PostConstruct;
36: import java.util.regex.Pattern;
37:
38: /**
39: * A rewrite condition that passes if a named cookie exists and has a value
40: * that matches a regular expression.
41: */
42: public class CookieCondition extends AbstractCondition {
43: private String _name;
44: private Pattern _regexp;
45: private boolean _caseInsensitive;
46: private boolean _sendVary = true;
47:
48: CookieCondition(String name) {
49: _name = name;
50: }
51:
52: public void setCaseInsensitive(boolean caseInsensitive) {
53: _caseInsensitive = caseInsensitive;
54: }
55:
56: public void setRegexp(Pattern regexp) {
57: _regexp = regexp;
58: }
59:
60: public void setSendVary(boolean sendVary) {
61: _sendVary = sendVary;
62: }
63:
64: public String getTagName() {
65: return "cookie";
66: }
67:
68: @PostConstruct
69: public void init() {
70: if (_regexp != null && _caseInsensitive)
71: _regexp = Pattern.compile(_regexp.pattern(),
72: Pattern.CASE_INSENSITIVE);
73: }
74:
75: public boolean isMatch(HttpServletRequest request,
76: HttpServletResponse response) {
77: if (_sendVary)
78: addHeaderValue(response, "Vary", "Cookie");
79:
80: Cookie[] cookies = request.getCookies();
81:
82: if (cookies != null) {
83: for (int i = 0; i < cookies.length; i++) {
84: Cookie cookie = cookies[i];
85:
86: if (cookie.getName().equals(_name)) {
87: return _regexp == null
88: || _regexp.matcher(cookie.getValue())
89: .find();
90: }
91: }
92: }
93:
94: return false;
95: }
96: }
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