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
|
/*
* Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import javax.naming.Context;
import javax.naming.NamingException;
import javax.naming.directory.DirContext;
import javax.naming.directory.InitialDirContext;
import java.io.Closeable;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Hashtable;
/*
* @test
* @bug 8205330
* @summary Test that If a connection has already been established and then
* the LDAP directory server sends an (unsolicited)
* "Notice of Disconnection", make sure client handle it correctly,
* no NPE been thrown.
* @run main/othervm DisconnectNPETest
*/
public class DisconnectNPETest {
// Normally the NPE bug should be hit less than 100 times run, but just in
// case, we set repeat count to 1000 here.
private static final int REPEAT_COUNT = 1000;
public static void main(String[] args) throws IOException {
new DisconnectNPETest().run();
}
private ServerSocket serverSocket;
private Hashtable<Object, Object> env;
private TestLDAPServer server;
private void initRes() throws IOException {
serverSocket = new ServerSocket(0, 0, InetAddress.getLoopbackAddress());
server = new TestLDAPServer();
server.start();
}
private void initTest() {
env = new Hashtable<>();
env.put(Context.INITIAL_CONTEXT_FACTORY,
"com.sun.jndi.ldap.LdapCtxFactory");
env.put(Context.PROVIDER_URL, String.format("ldap://%s:%d/",
InetAddress.getLoopbackAddress().getHostName(),
serverSocket.getLocalPort()));
env.put(Context.SECURITY_AUTHENTICATION, "simple");
env.put(Context.SECURITY_PRINCIPAL,
"cn=8205330,ou=Client6,ou=Vendor1,o=IMC,c=US");
env.put(Context.SECURITY_CREDENTIALS, "secret123");
}
private void run() throws IOException {
initRes();
initTest();
int count = 0;
try {
while (count < REPEAT_COUNT) {
count++;
InitialDirContext context = null;
try {
context = new InitialDirContext(env);
} catch (NamingException ne) {
System.out.println("(" + count + "/" + REPEAT_COUNT
+ ") It's ok to get NamingException: " + ne);
// for debug
ne.printStackTrace(System.out);
} finally {
cleanupContext(context);
}
}
} finally {
System.out.println("Test count: " + count + "/" + REPEAT_COUNT);
cleanupTest();
}
}
private void cleanupTest() {
if (server != null) {
server.stopServer();
}
cleanupClosableRes(serverSocket);
}
private void cleanupContext(DirContext context) {
if (context != null) {
try {
context.close();
} catch (NamingException e) {
// ignore
}
}
}
private static void cleanupClosableRes(Closeable res) {
if (res != null) {
try {
res.close();
} catch (Exception e) {
// ignore
}
}
}
class TestLDAPServer extends Thread {
private volatile boolean isRunning;
TestLDAPServer() {
isRunning = true;
}
private void stopServer() {
isRunning = false;
}
@Override
public void run() {
try {
while (isRunning) {
Socket clientSocket = serverSocket.accept();
Thread handler = new Thread(
new LDAPServerHandler(clientSocket));
handler.start();
}
} catch (IOException e) {
if (isRunning) {
throw new RuntimeException(e);
}
}
}
}
static class LDAPServerHandler implements Runnable {
// "Notice of Disconnection" message
private static final byte[] DISCONNECT_MSG = { 0x30, 0x4C, 0x02, 0x01,
0x00, 0x78, 0x47, 0x0A, 0x01, 0x34, 0x04, 0x00, 0x04, 0x28,
0x55, 0x4E, 0x41, 0x56, 0x41, 0x49, 0x4C, 0x41, 0x42, 0x4C,
0x45, 0x3A, 0x20, 0x54, 0x68, 0x65, 0x20, 0x73, 0x65, 0x72,
0x76, 0x65, 0x72, 0x20, 0x77, 0x69, 0x6C, 0x6C, 0x20, 0x64,
0x69, 0x73, 0x63, 0x6F, 0x6E, 0x6E, 0x65, 0x63, 0x74, 0x21,
(byte) 0x8A, 0x16, 0x31, 0x2E, 0x33, 0x2E, 0x36, 0x2E, 0x31,
0x2E, 0x34, 0x2E, 0x31, 0x2E, 0x31, 0x34, 0x36, 0x36, 0x2E,
0x32, 0x30, 0x30, 0x33, 0x36 };
private static final byte[] BIND_RESPONSE = { 0x30, 0x0C, 0x02, 0x01,
0x01, 0x61, 0x07, 0x0A, 0x01, 0x00, 0x04, 0x00, 0x04, 0x00 };
private final Socket clientSocket;
private LDAPServerHandler(final Socket clientSocket) {
this.clientSocket = clientSocket;
}
@Override
public void run() {
try (clientSocket;
OutputStream out = clientSocket.getOutputStream();
InputStream in = clientSocket.getInputStream()) {
if (in.read() > 0) {
in.skip(in.available());
out.write(BIND_RESPONSE);
out.write(DISCONNECT_MSG);
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
|
