1 //
2 // ========================================================================
3 // Copyright (c) 1995-2016 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.websocket.api.util;
20
21 import java.net.URI;
22 import java.net.URISyntaxException;
23 import java.util.Objects;
24
25 /**
26 * Utility methods for converting a {@link URI} between a HTTP(S) and WS(S) URI.
27 */
28 public final class WSURI
29 {
30 /**
31 * Convert to HTTP <code>http</code> or <code>https</code> scheme URIs.
32 * <p>
33 * Converting <code>ws</code> and <code>wss</code> URIs to their HTTP equivalent
34 *
35 * @param inputUri
36 * the input URI
37 * @return the HTTP scheme URI for the input URI.
38 * @throws URISyntaxException
39 * if unable to convert the input URI
40 */
41 public static URI toHttp(final URI inputUri) throws URISyntaxException
42 {
43 Objects.requireNonNull(inputUri,"Input URI must not be null");
44 String wsScheme = inputUri.getScheme();
45 String httpScheme = null;
46 if ("http".equalsIgnoreCase(wsScheme) || "https".equalsIgnoreCase(wsScheme))
47 {
48 // leave alone
49 httpScheme = wsScheme;
50 }
51 else if ("ws".equalsIgnoreCase(wsScheme))
52 {
53 // convert to http
54 httpScheme = "http";
55 }
56 else if ("wss".equalsIgnoreCase(wsScheme))
57 {
58 // convert to https
59 httpScheme = "https";
60 }
61 else
62 {
63 throw new URISyntaxException(inputUri.toString(),"Unrecognized WebSocket scheme");
64 }
65
66 return new URI(httpScheme,inputUri.getUserInfo(),inputUri.getHost(),inputUri.getPort(),inputUri.getPath(),inputUri.getQuery(),inputUri.getFragment());
67 }
68
69 /**
70 * Convert to WebSocket <code>ws</code> or <code>wss</code> scheme URIs
71 * <p>
72 * Converting <code>http</code> and <code>https</code> URIs to their WebSocket equivalent
73 *
74 * @param inputUrl
75 * the input URI
76 * @return the WebSocket scheme URI for the input URI.
77 * @throws URISyntaxException
78 * if unable to convert the input URI
79 */
80 public static URI toWebsocket(CharSequence inputUrl) throws URISyntaxException
81 {
82 return toWebsocket(new URI(inputUrl.toString()));
83 }
84
85 /**
86 * Convert to WebSocket <code>ws</code> or <code>wss</code> scheme URIs
87 * <p>
88 * Converting <code>http</code> and <code>https</code> URIs to their WebSocket equivalent
89 *
90 * @param inputUrl
91 * the input URI
92 * @param query
93 * the optional query string
94 * @return the WebSocket scheme URI for the input URI.
95 * @throws URISyntaxException
96 * if unable to convert the input URI
97 */
98 public static URI toWebsocket(CharSequence inputUrl, String query) throws URISyntaxException
99 {
100 if (query == null)
101 {
102 return toWebsocket(new URI(inputUrl.toString()));
103 }
104 return toWebsocket(new URI(inputUrl.toString() + '?' + query));
105 }
106
107 /**
108 * Convert to WebSocket <code>ws</code> or <code>wss</code> scheme URIs
109 *
110 * <p>
111 * Converting <code>http</code> and <code>https</code> URIs to their WebSocket equivalent
112 *
113 * @param inputUri
114 * the input URI
115 * @return the WebSocket scheme URI for the input URI.
116 * @throws URISyntaxException
117 * if unable to convert the input URI
118 */
119 public static URI toWebsocket(final URI inputUri) throws URISyntaxException
120 {
121 Objects.requireNonNull(inputUri,"Input URI must not be null");
122 String httpScheme = inputUri.getScheme();
123 String wsScheme = null;
124 if ("ws".equalsIgnoreCase(httpScheme) || "wss".equalsIgnoreCase(httpScheme))
125 {
126 // keep as-is
127 wsScheme = httpScheme;
128 }
129 else if ("http".equalsIgnoreCase(httpScheme))
130 {
131 // convert to ws
132 wsScheme = "ws";
133 }
134 else if ("https".equalsIgnoreCase(httpScheme))
135 {
136 // convert to wss
137 wsScheme = "wss";
138 }
139 else
140 {
141 throw new URISyntaxException(inputUri.toString(),"Unrecognized HTTP scheme");
142 }
143 return new URI(wsScheme,inputUri.getUserInfo(),inputUri.getHost(),inputUri.getPort(),inputUri.getPath(),inputUri.getQuery(),inputUri.getFragment());
144 }
145 }