-
Notifications
You must be signed in to change notification settings - Fork 3.5k
/
AbstractWebSocketHandler.java
192 lines (162 loc) · 8.05 KB
/
AbstractWebSocketHandler.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
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
/**
* 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 org.apache.pulsar.websocket;
import static com.google.common.base.Preconditions.checkArgument;
import java.io.Closeable;
import java.io.IOException;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;
import javax.naming.AuthenticationException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.pulsar.broker.authentication.AuthenticationDataHttps;
import org.apache.pulsar.broker.authentication.AuthenticationDataSource;
import org.apache.pulsar.common.naming.NamespaceName;
import org.apache.pulsar.common.naming.TopicName;
import org.eclipse.jetty.websocket.api.Session;
import org.eclipse.jetty.websocket.api.WebSocketAdapter;
import org.eclipse.jetty.websocket.servlet.ServletUpgradeResponse;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.common.base.Splitter;
public abstract class AbstractWebSocketHandler extends WebSocketAdapter implements Closeable {
protected final WebSocketService service;
protected final HttpServletRequest request;
protected final TopicName topic;
protected final Map<String, String> queryParams;
public AbstractWebSocketHandler(WebSocketService service, HttpServletRequest request, ServletUpgradeResponse response) {
this.service = service;
this.request = request;
this.topic = extractTopicName(request);
this.queryParams = new TreeMap<>();
request.getParameterMap().forEach((key, values) -> {
queryParams.put(key, values[0]);
});
}
protected boolean checkAuth(ServletUpgradeResponse response) {
String authRole = "<none>";
AuthenticationDataSource authenticationData = new AuthenticationDataHttps(request);
if (service.isAuthenticationEnabled()) {
try {
authRole = service.getAuthenticationService().authenticateHttpRequest(request);
log.info("[{}:{}] Authenticated WebSocket client {} on topic {}", request.getRemoteAddr(),
request.getRemotePort(), authRole, topic);
} catch (AuthenticationException e) {
log.warn("[{}:{}] Failed to authenticated WebSocket client {} on topic {}: {}", request.getRemoteAddr(),
request.getRemotePort(), authRole, topic, e.getMessage());
try {
response.sendError(HttpServletResponse.SC_UNAUTHORIZED, "Failed to authenticate");
} catch (IOException e1) {
log.warn("[{}:{}] Failed to send error: {}", request.getRemoteAddr(), request.getRemotePort(),
e1.getMessage(), e1);
}
return false;
}
}
if (service.isAuthorizationEnabled()) {
try {
if (!isAuthorized(authRole, authenticationData)) {
log.warn("[{}:{}] WebSocket Client [{}] is not authorized on topic {}", request.getRemoteAddr(),
request.getRemotePort(), authRole, topic);
response.sendError(HttpServletResponse.SC_FORBIDDEN, "Not authorized");
return false;
}
} catch (Exception e) {
log.warn("[{}:{}] Got an exception when authorizing WebSocket client {} on topic {} on: {}",
request.getRemoteAddr(), request.getRemotePort(), authRole, topic, e.getMessage());
try {
response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "Server error");
} catch (IOException e1) {
log.warn("[{}:{}] Failed to send error: {}", request.getRemoteAddr(), request.getRemotePort(),
e1.getMessage(), e1);
}
return false;
}
}
return true;
}
@Override
public void onWebSocketConnect(Session session) {
super.onWebSocketConnect(session);
log.info("[{}] New WebSocket session on topic {}", session.getRemoteAddress(), topic);
}
@Override
public void onWebSocketError(Throwable cause) {
super.onWebSocketError(cause);
log.info("[{}] WebSocket error on topic {} : {}", getSession().getRemoteAddress(), topic, cause.getMessage());
try {
close();
} catch (IOException e) {
log.error("Failed in closing WebSocket session for topic {} with error: {}", topic, e.getMessage());
}
}
@Override
public void onWebSocketClose(int statusCode, String reason) {
log.info("[{}] Closed WebSocket session on topic {}. status: {} - reason: {}", getSession().getRemoteAddress(),
topic, statusCode, reason);
try {
close();
} catch (IOException e) {
log.warn("[{}] Failed to close handler for topic {}. ", getSession().getRemoteAddress(), topic, e);
}
}
public void close(WebSocketError error) {
log.warn("[{}] Closing WebSocket session for topic {} - code: [{}], reason: [{}]",
getSession().getRemoteAddress(), topic, error.getCode(), error.getDescription());
getSession().close(error.getCode(), error.getDescription());
}
public void close(WebSocketError error, String message) {
log.warn("[{}] Closing WebSocket session for topic {} - code: [{}], reason: [{}]",
getSession().getRemoteAddress(), topic, error.getCode(), error.getDescription() + ": " + message);
getSession().close(error.getCode(), error.getDescription() + ": " + message);
}
protected String checkAuthentication() {
return null;
}
private TopicName extractTopicName(HttpServletRequest request) {
String uri = request.getRequestURI();
List<String> parts = Splitter.on("/").splitToList(uri);
// V1 Format must be like :
// /ws/producer/persistent/my-property/my-cluster/my-ns/my-topic
// or
// /ws/consumer/persistent/my-property/my-cluster/my-ns/my-topic/my-subscription
// or
// /ws/reader/persistent/my-property/my-cluster/my-ns/my-topic
// V2 Format must be like :
// /ws/v2/producer/persistent/my-property/my-ns/my-topic
// or
// /ws/v2/consumer/persistent/my-property/my-ns/my-topic/my-subscription
// or
// /ws/v2/reader/persistent/my-property/my-ns/my-topic
checkArgument(parts.size() >= 8, "Invalid topic name format");
checkArgument(parts.get(1).equals("ws"));
final boolean isV2Format = parts.get(2).equals("v2");
final int domainIndex = isV2Format ? 4 : 3;
checkArgument(parts.get(domainIndex).equals("persistent") ||
parts.get(domainIndex).equals("non-persistent"));
final String domain = parts.get(domainIndex);
final NamespaceName namespace = isV2Format ? NamespaceName.get(parts.get(5), parts.get(6)) :
NamespaceName.get( parts.get(4), parts.get(5), parts.get(6));
final String name = parts.get(7);
return TopicName.get(domain, namespace, name);
}
protected abstract Boolean isAuthorized(String authRole, AuthenticationDataSource authenticationData) throws Exception;
private static final Logger log = LoggerFactory.getLogger(AbstractWebSocketHandler.class);
}