1 /*
2  * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4  *
5  * This code is free software; you can redistribute it and/or modify it
6  * under the terms of the GNU General Public License version 2 only, as
7  * published by the Free Software Foundation.
8  *
9  * This code is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12  * version 2 for more details (a copy is included in the LICENSE file that
13  * accompanied this code).
14  *
15  * You should have received a copy of the GNU General Public License version
16  * 2 along with this work; if not, write to the Free Software Foundation,
17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18  *
19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20  * or visit www.oracle.com if you need additional information or have any
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22  */
23 
24 import java.io.File;
25 import java.io.IOException;
26 import java.util.HashMap;
27 import java.util.Map;
28 import javax.security.auth.callback.CallbackHandler;
29 import javax.security.auth.login.LoginContext;
30 import javax.security.auth.login.LoginException;
31 
32 /*
33  * @test
34  * @bug 4745056 8075297
35  * @summary Checks if refreshKrb5Config is set to true for Krb5LoginModule,
36  *          then configuration will be refreshed before login() method is called
37  * @run main/othervm -Dsun.net.spi.nameservice.provider.1=ns,mock RefreshKrb5Config
38  */
39 public class RefreshKrb5Config {
40 
41     static final String TEST_SRC = System.getProperty("test.src", ".");
42     static final String HOST = "localhost";
43     static final String NOT_EXISTING_HOST = "not.existing.host";
44     static final String REALM = "TEST.REALM";
45     static final String USER = "USER";
46     static final String USER_PRINCIPAL = USER + "@" + REALM;
47     static final String USER_PASSWORD = "password";
48     static final String KRBTGT_PRINCIPAL = "krbtgt/" + REALM;
49     static final String KRB5_CONF_FILENAME = "krb5.conf";
50 
main(String[] args)51     public static void main(String[] args) throws LoginException, IOException {
52         Map<String, String> principals = new HashMap<>();
53         principals.put(USER_PRINCIPAL, USER_PASSWORD);
54         principals.put(KRBTGT_PRINCIPAL, null);
55 
56         System.setProperty("java.security.krb5.conf", KRB5_CONF_FILENAME);
57 
58         // start a local KDC, and save krb5 config
59         KDC kdc = KDC.startKDC(HOST, null, REALM, principals, null, null);
60         KDC.saveConfig(KRB5_CONF_FILENAME, kdc, "max_retries = 1");
61 
62         System.setProperty("java.security.auth.login.config",
63                 TEST_SRC + File.separator + "refreshKrb5Config.jaas");
64 
65         CallbackHandler handler = new Helper.UserPasswordHandler(
66                 USER, USER_PASSWORD);
67 
68         // set incorrect KDC
69         System.out.println("java.security.krb5.kdc = " + NOT_EXISTING_HOST);
70         System.setProperty("java.security.krb5.kdc", NOT_EXISTING_HOST);
71         System.out.println("java.security.krb5.realm = " + REALM);
72         System.setProperty("java.security.krb5.realm", REALM);
73         try {
74             new LoginContext("Refreshable", handler).login();
75             throw new RuntimeException("Expected exception not thrown");
76         } catch (LoginException le) {
77             System.out.println("Expected login failure: " + le);
78         }
79 
80         // reset properties
81         System.out.println("Reset java.security.krb5.kdc");
82         System.clearProperty("java.security.krb5.kdc");
83         System.out.println("Reset java.security.krb5.realm");
84         System.clearProperty("java.security.krb5.realm");
85 
86         // login with not-refreshable config
87         try {
88             new LoginContext("NotRefreshable", handler).login();
89             throw new RuntimeException("Expected exception not thrown");
90         } catch (LoginException le) {
91             System.out.println("Expected login failure: " + le);
92         }
93 
94         // login with refreshable config
95         new LoginContext("Refreshable", handler).login();
96 
97         System.out.println("Test passed");
98     }
99 
100 }
101