1 /*
2 * Copyright (c) 2012, 2017, 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.packager.internal.windows;
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.InputStream;
33 import java.io.InputStreamReader;
34 import java.io.PrintStream;
35 import java.io.StringWriter;
36 import java.util.ArrayList;
37 import java.util.List;
38
39 import static com.oracle.tools.packager.IOUtils.exec;
40
41 public final class WindowsRegistry {
42
43 private WindowsRegistry() {}
44
45 /**
46 * Reads the registry value for DisableRealtimeMonitoring.
47 * @return true if DisableRealtimeMonitoring is set to 0x1, false otherwise.
48 */
49 public static final boolean readDisableRealtimeMonitoring() {
50 boolean result = false;
51 final String key = "HKEY_LOCAL_MACHINE\\Software\\Microsoft\\Windows Defender\\Real-Time Protection";
52 final String subkey = "DisableRealtimeMonitoring";
53 String value = readRegistry(key, subkey);
54
55 if (!value.isEmpty()) {
56 // This code could be written better but this works. It validates
57 // that the result of readRegistry returned what we expect and then
58 // checks for a 0x0 or 0x1. 0x0 means real time monitoring is
59 // on, 0x1 means it is off. So this function returns true if
60 // real-time-monitoring is disabled.
61 int index = value.indexOf(subkey);
62 value = value.substring(index + subkey.length());
63 String reg = "REG_DWORD";
64 index = value.indexOf(reg);
65 value = value.substring(index + reg.length());
66 String hex = "0x";
67 index = value.indexOf(hex);
68 value = value.substring(index + hex.length());
69
70 if (value.equals("1")) {
71 result = true;
72 }
73 }
74
75 return result;
76 }
77
78 public static final List<String> readExclusionsPaths() {
79 List<String> result = new ArrayList();
80 final String key = "HKEY_LOCAL_MACHINE\\Software\\Microsoft\\Windows Defender\\Exclusions\\Paths";
81 String value = readRegistry(key, "");
82
83 if (!value.isEmpty()) {
84 final String reg = "REG_DWORD";
85 final String hex = "0x0";
86
87 int index = value.indexOf(key);
88 if (index == 0) {
89 value = value.substring(index + key.length());
90
91 while (value.length() > 0) {
92 index = value.indexOf(reg);
93 String name = value.substring(0, index);
94 value = value.substring(index + reg.length());
95 index = value.indexOf(hex);
96 value = value.substring(index + hex.length());
97
98 if (index > 0) {
99 name = name.trim();
100 result.add(name);
101 }
102 }
103 }
104 }
105
106 return result;
107 }
108 /**
109 * @param key in the registry
110 * @param subkey in the registry key
111 * @return registry value or null if not found
112 */
113 public static final String readRegistry(String key, String subkey){
114 String result = "";
115
116 try {
117 List<String> buildOptions = new ArrayList<>();
118 buildOptions.add("reg");
119 buildOptions.add("query");
120 buildOptions.add("\"" + key + "\"");
121
122 if (!subkey.isEmpty()) {
123 buildOptions.add("/v");
124 buildOptions.add(subkey);
125 }
126
127 try (ByteArrayOutputStream baos = new ByteArrayOutputStream(); PrintStream ps = new PrintStream(baos)) {
128 ProcessBuilder security = new ProcessBuilder(buildOptions);
129 exec(security, false, false, ps);
130 BufferedReader bfReader = new BufferedReader(new InputStreamReader(new ByteArrayInputStream(baos.toByteArray())));
131 String line = null;
132
133 while((line = bfReader.readLine()) != null){
134 result += line;
135 }
136 }
137 catch (IOException e) {
138 }
139 }
140 catch (Exception e) {
141 }
142
143 return result;
144 }
145 }