forked from spring-projects/spring-framework
-
Notifications
You must be signed in to change notification settings - Fork 1
/
TomcatRequestUpgradeStrategy.java
83 lines (70 loc) · 3.03 KB
/
TomcatRequestUpgradeStrategy.java
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
/*
* Copyright 2002-2022 the original author or authors.
*
* Licensed 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
*
* https://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 org.springframework.web.socket.server.standard;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import jakarta.websocket.Endpoint;
import jakarta.websocket.Extension;
import org.apache.tomcat.websocket.server.WsServerContainer;
import org.springframework.http.server.ServerHttpRequest;
import org.springframework.http.server.ServerHttpResponse;
import org.springframework.lang.Nullable;
import org.springframework.web.socket.server.HandshakeFailureException;
/**
* A WebSocket {@code RequestUpgradeStrategy} for Apache Tomcat. Compatible with
* Tomcat 10 and higher.
*
* <p>To modify properties of the underlying {@link jakarta.websocket.server.ServerContainer}
* you can use {@link ServletServerContainerFactoryBean} in XML configuration or,
* when using Java configuration, access the container instance through the
* "jakarta.websocket.server.ServerContainer" ServletContext attribute.
*
* @author Rossen Stoyanchev
* @since 4.0
*/
public class TomcatRequestUpgradeStrategy extends AbstractStandardUpgradeStrategy {
@Override
public String[] getSupportedVersions() {
return new String[] {"13"};
}
@Override
public void upgradeInternal(ServerHttpRequest request, ServerHttpResponse response,
@Nullable String selectedProtocol, List<Extension> selectedExtensions, Endpoint endpoint)
throws HandshakeFailureException {
HttpServletRequest servletRequest = getHttpServletRequest(request);
HttpServletResponse servletResponse = getHttpServletResponse(response);
StringBuffer requestUrl = servletRequest.getRequestURL();
String path = servletRequest.getRequestURI(); // shouldn't matter
Map<String, String> pathParams = Collections.<String, String> emptyMap();
ServerEndpointRegistration endpointConfig = new ServerEndpointRegistration(path, endpoint);
endpointConfig.setSubprotocols(Collections.singletonList(selectedProtocol));
endpointConfig.setExtensions(selectedExtensions);
try {
getContainer(servletRequest).upgradeHttpToWebSocket(servletRequest, servletResponse, endpointConfig, pathParams);
}
catch (Exception ex) {
throw new HandshakeFailureException(
"Servlet request failed to upgrade to WebSocket: " + requestUrl, ex);
}
}
@Override
public WsServerContainer getContainer(HttpServletRequest request) {
return (WsServerContainer) super.getContainer(request);
}
}