1 /*
2 * Copyright 2012 smartics, Kronseder & Reiner GmbH
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 package de.smartics.ci.maven.util;
17
18 import java.io.File;
19
20 import org.sonatype.plexus.components.sec.dispatcher.DefaultSecDispatcher;
21 import org.sonatype.plexus.components.sec.dispatcher.SecDispatcher;
22 import org.sonatype.plexus.components.sec.dispatcher.SecDispatcherException;
23
24 /**
25 * Helper to decrypt passwords from the settings.
26 */
27 public final class SettingsDecrypter
28 {
29 // ********************************* Fields *********************************
30
31 // --- constants ------------------------------------------------------------
32
33 // --- members --------------------------------------------------------------
34
35 /**
36 * The Maven infrastructure to decrypt passwords from the settings.
37 */
38 private final SecDispatcher securityDispatcher;
39
40 /**
41 * The location of the <code>settings-security.xml</code>.
42 */
43 private final String settingsSecurityLocation;
44
45 // ****************************** Initializer *******************************
46
47 // ****************************** Constructors ******************************
48
49 /**
50 * Default constructor.
51 *
52 * @param securityDispatcher the Maven infrastructure to decrypt passwords
53 * from the settings.
54 * @param settingsSecurityLocation the location of the
55 * <code>settings-security</code>.
56 */
57 public SettingsDecrypter(final SecDispatcher securityDispatcher,
58 final String settingsSecurityLocation)
59 {
60 this.securityDispatcher = securityDispatcher;
61 this.settingsSecurityLocation = init(settingsSecurityLocation);
62 }
63
64 // ****************************** Inner Classes *****************************
65
66 // ********************************* Methods ********************************
67
68 // --- init -----------------------------------------------------------------
69
70 private static String init(final String settingsSecurityLocation)
71 {
72 final File file = new File(settingsSecurityLocation);
73 if (!file.canRead())
74 {
75 return null;
76 }
77
78 System.setProperty(DefaultSecDispatcher.SYSTEM_PROPERTY_SEC_LOCATION,
79 settingsSecurityLocation);
80 return settingsSecurityLocation;
81 }
82
83 // --- get&set --------------------------------------------------------------
84
85 // --- business -------------------------------------------------------------
86
87 /**
88 * Decrypts the given value if the security dispatcher is initialized with a
89 * valid configuration.
90 *
91 * @param encrypted the value to decrypt.
92 * @return the decrypted value or the unchanged {@code encrypted}.
93 */
94 public String decrypt(final String encrypted)
95 {
96 if (settingsSecurityLocation != null)
97 {
98 try
99 {
100 return securityDispatcher.decrypt(encrypted);
101 }
102 catch (final SecDispatcherException e)
103 {
104 return encrypted;
105 }
106 }
107 return encrypted;
108 }
109
110 // --- object basics --------------------------------------------------------
111
112 }