1 /*
2 * Copyright (c) 2012, 2019, 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. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package jdk.jpackage.internal;
27
28 import java.io.BufferedReader;
29 import java.io.ByteArrayInputStream;
30 import java.io.ByteArrayOutputStream;
31 import java.io.IOException;
32 import java.io.InputStreamReader;
33 import java.io.PrintStream;
34 import java.util.ArrayList;
35 import java.util.List;
36
37 import static jdk.jpackage.internal.IOUtils.exec;
38
39 final class WindowsRegistry {
40
41 // Currently we only support HKEY_LOCAL_MACHINE. Native implementation will
42 // require support for additinal HKEY if needed.
43 private static final int HKEY_LOCAL_MACHINE = 1;
44
45 static {
46 System.loadLibrary("jpackage");
47 }
48
49 private WindowsRegistry() {}
50
51 /**
52 * Reads the registry value for DisableRealtimeMonitoring.
53 * @return true if DisableRealtimeMonitoring is set to 0x1,
54 * false otherwise.
55 */
56 static final boolean readDisableRealtimeMonitoring() {
57 final String subKey = "Software\\Microsoft\\"
58 + "Windows Defender\\Real-Time Protection";
59 final String value = "DisableRealtimeMonitoring";
60 int result = readDwordValue(HKEY_LOCAL_MACHINE, subKey, value, 0);
61 return (result == 1);
62 }
63
64 static final List<String> readExclusionsPaths() {
65 List<String> result = new ArrayList<>();
66 final String subKey = "Software\\Microsoft\\"
67 + "Windows Defender\\Exclusions\\Paths";
68 long lKey = openRegistryKey(HKEY_LOCAL_MACHINE, subKey);
69 if (lKey == 0) {
70 return result;
71 }
72
73 String valueName;
74 int index = 0;
75 do {
76 valueName = enumRegistryValue(lKey, index);
77 if (valueName != null) {
78 result.add(valueName);
79 index++;
80 }
81 } while (valueName != null);
82
83 closeRegistryKey(lKey);
84
85 return result;
86 }
87
88 /**
89 * Reads DWORD registry value.
90 *
91 * @param key one of HKEY predefine value
92 * @param subKey registry sub key
93 * @param value value to read
94 * @param defaultValue default value in case if subKey or value not found
95 * or any other errors occurred
96 * @return value's data only if it was read successfully, otherwise
97 * defaultValue
98 */
99 private static native int readDwordValue(int key, String subKey,
100 String value, int defaultValue);
101
102 /**
103 * Open registry key.
104 *
105 * @param key one of HKEY predefine value
106 * @param subKey registry sub key
107 * @return native handle to open key
108 */
109 private static native long openRegistryKey(int key, String subKey);
110
111 /**
112 * Enumerates the values for registry key.
113 *
114 * @param lKey native handle to open key returned by openRegistryKey
115 * @param index index of value starting from 0. Increment until this
116 * function returns NULL which means no more values.
117 * @return returns value or NULL if error or no more data
118 */
119 private static native String enumRegistryValue(long lKey, int index);
120
121 /**
122 * Close registry key.
123 *
124 * @param lKey native handle to open key returned by openRegistryKey
125 */
126 private static native void closeRegistryKey(long lKey);
127
128 /**
129 * Compares two Windows paths regardless case and if paths are short or long.
130 *
131 * @param path1 path to compare
132 * @param path2 path to compare
133 * @return true if paths point to same location
134 */
135 public static native boolean comparePaths(String path1, String path2);
136 }