1 | /* Copyright 2006-2009 the original author or authors. |
---|
2 | * |
---|
3 | * Licensed under the Apache License, Version 2.0 (the "License"); |
---|
4 | * you may not use this file except in compliance with the License. |
---|
5 | * You may obtain a copy of the License at |
---|
6 | * |
---|
7 | * http://www.apache.org/licenses/LICENSE-2.0 |
---|
8 | * |
---|
9 | * Unless required by applicable law or agreed to in writing, software |
---|
10 | * distributed under the License is distributed on an "AS IS" BASIS, |
---|
11 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
---|
12 | * See the License for the specific language governing permissions and |
---|
13 | * limitations under the License. |
---|
14 | */ |
---|
15 | package org.codehaus.groovy.grails.plugins.springsecurity |
---|
16 | |
---|
17 | import javax.servlet.http.HttpServletRequest |
---|
18 | import javax.servlet.http.HttpServletResponse |
---|
19 | |
---|
20 | import org.springframework.security.util.PortResolver |
---|
21 | import org.springframework.security.util.PortResolverImpl |
---|
22 | |
---|
23 | /** |
---|
24 | * Fixes <a href='http://jira.codehaus.org/browse/GRAILSPLUGINS-273'>this redirect bug</a>. |
---|
25 | * @author Tsuyoshi Yamamoto |
---|
26 | */ |
---|
27 | class RedirectUtils { |
---|
28 | |
---|
29 | private static final PortResolver RESOLVER = new PortResolverImpl() |
---|
30 | |
---|
31 | /** |
---|
32 | * Send a redirect. |
---|
33 | * @param request the request |
---|
34 | * @param response the response |
---|
35 | * @param url the target url to redirect to |
---|
36 | * @throws IOException if there's a problem |
---|
37 | */ |
---|
38 | static void sendRedirect( |
---|
39 | HttpServletRequest request, |
---|
40 | HttpServletResponse response, |
---|
41 | String url) throws IOException { |
---|
42 | |
---|
43 | String redirect = buildRedirectUrl(request, response, url) |
---|
44 | response.sendRedirect(response.encodeRedirectURL(redirect)) |
---|
45 | } |
---|
46 | |
---|
47 | /** |
---|
48 | * Build a redirect url. |
---|
49 | * @param request the request |
---|
50 | * @param response the response |
---|
51 | * @param url the target url to redirect to |
---|
52 | * @return the url |
---|
53 | * @throws IOException if there's a problem |
---|
54 | */ |
---|
55 | static String buildRedirectUrl( |
---|
56 | HttpServletRequest request, |
---|
57 | HttpServletResponse response, |
---|
58 | String url) throws IOException { |
---|
59 | |
---|
60 | if (!url.startsWith("http://") && !url.startsWith("https://")) { |
---|
61 | String scheme = request.scheme |
---|
62 | int serverPort = RESOLVER.getServerPort(request) |
---|
63 | boolean inHttp = "http".equalsIgnoreCase(scheme) |
---|
64 | boolean inHttps = "https".equalsIgnoreCase(scheme) |
---|
65 | boolean includePort = true |
---|
66 | if (inHttp && (serverPort == 80)) { |
---|
67 | includePort = false |
---|
68 | } |
---|
69 | else if (inHttps && (serverPort == 443)) { |
---|
70 | includePort = false |
---|
71 | } |
---|
72 | String port = includePort ? ":" + serverPort : "" |
---|
73 | return "${scheme}://${request.serverName}${port}${request.contextPath}${url}" |
---|
74 | } |
---|
75 | |
---|
76 | return url |
---|
77 | } |
---|
78 | } |
---|