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
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
|
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package nginx.unit.websocket.server;
import java.net.URI;
import java.net.URISyntaxException;
import java.security.Principal;
import java.util.Arrays;
import java.util.Collections;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import javax.servlet.http.HttpServletRequest;
import javax.websocket.server.HandshakeRequest;
import org.apache.tomcat.util.collections.CaseInsensitiveKeyMap;
import org.apache.tomcat.util.res.StringManager;
/**
* Represents the request that this session was opened under.
*/
public class WsHandshakeRequest implements HandshakeRequest {
private static final StringManager sm = StringManager.getManager(WsHandshakeRequest.class);
private final URI requestUri;
private final Map<String,List<String>> parameterMap;
private final String queryString;
private final Principal userPrincipal;
private final Map<String,List<String>> headers;
private final Object httpSession;
private volatile HttpServletRequest request;
public WsHandshakeRequest(HttpServletRequest request, Map<String,String> pathParams) {
this.request = request;
queryString = request.getQueryString();
userPrincipal = request.getUserPrincipal();
httpSession = request.getSession(false);
requestUri = buildRequestUri(request);
// ParameterMap
Map<String,String[]> originalParameters = request.getParameterMap();
Map<String,List<String>> newParameters =
new HashMap<>(originalParameters.size());
for (Entry<String,String[]> entry : originalParameters.entrySet()) {
newParameters.put(entry.getKey(),
Collections.unmodifiableList(
Arrays.asList(entry.getValue())));
}
for (Entry<String,String> entry : pathParams.entrySet()) {
newParameters.put(entry.getKey(),
Collections.unmodifiableList(
Collections.singletonList(entry.getValue())));
}
parameterMap = Collections.unmodifiableMap(newParameters);
// Headers
Map<String,List<String>> newHeaders = new CaseInsensitiveKeyMap<>();
Enumeration<String> headerNames = request.getHeaderNames();
while (headerNames.hasMoreElements()) {
String headerName = headerNames.nextElement();
newHeaders.put(headerName, Collections.unmodifiableList(
Collections.list(request.getHeaders(headerName))));
}
headers = Collections.unmodifiableMap(newHeaders);
}
@Override
public URI getRequestURI() {
return requestUri;
}
@Override
public Map<String,List<String>> getParameterMap() {
return parameterMap;
}
@Override
public String getQueryString() {
return queryString;
}
@Override
public Principal getUserPrincipal() {
return userPrincipal;
}
@Override
public Map<String,List<String>> getHeaders() {
return headers;
}
@Override
public boolean isUserInRole(String role) {
if (request == null) {
throw new IllegalStateException();
}
return request.isUserInRole(role);
}
@Override
public Object getHttpSession() {
return httpSession;
}
/**
* Called when the HandshakeRequest is no longer required. Since an instance
* of this class retains a reference to the current HttpServletRequest that
* reference needs to be cleared as the HttpServletRequest may be reused.
*
* There is no reason for instances of this class to be accessed once the
* handshake has been completed.
*/
void finished() {
request = null;
}
/*
* See RequestUtil.getRequestURL()
*/
private static URI buildRequestUri(HttpServletRequest req) {
StringBuffer uri = new StringBuffer();
String scheme = req.getScheme();
int port = req.getServerPort();
if (port < 0) {
// Work around java.net.URL bug
port = 80;
}
if ("http".equals(scheme)) {
uri.append("ws");
} else if ("https".equals(scheme)) {
uri.append("wss");
} else {
// Should never happen
throw new IllegalArgumentException(
sm.getString("wsHandshakeRequest.unknownScheme", scheme));
}
uri.append("://");
uri.append(req.getServerName());
if ((scheme.equals("http") && (port != 80))
|| (scheme.equals("https") && (port != 443))) {
uri.append(':');
uri.append(port);
}
uri.append(req.getRequestURI());
if (req.getQueryString() != null) {
uri.append("?");
uri.append(req.getQueryString());
}
try {
return new URI(uri.toString());
} catch (URISyntaxException e) {
// Should never happen
throw new IllegalArgumentException(
sm.getString("wsHandshakeRequest.invalidUri", uri.toString()), e);
}
}
public Object getAttribute(String name)
{
return request != null ? request.getAttribute(name) : null;
}
}
|
