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| 1 | +/* |
| 2 | + * Copyright (c) 2021, 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 |
| 21 | + * questions. |
| 22 | + */ |
| 23 | + |
| 24 | +/** |
| 25 | + * @test |
| 26 | + * @bug 8193682 |
| 27 | + * @summary Test Infinite loop while writing on closed GZipOutputStream , ZipOutputStream and JarOutputStream. |
| 28 | + * @run testng CloseDeflaterTest |
| 29 | + */ |
| 30 | +import java.io.*; |
| 31 | +import java.util.Random; |
| 32 | +import java.util.jar.JarOutputStream; |
| 33 | +import java.util.zip.GZIPOutputStream; |
| 34 | +import java.util.zip.ZipOutputStream; |
| 35 | +import java.util.zip.ZipEntry; |
| 36 | + |
| 37 | +import org.testng.annotations.BeforeTest; |
| 38 | +import org.testng.annotations.DataProvider; |
| 39 | +import org.testng.annotations.Test; |
| 40 | +import static org.testng.Assert.fail; |
| 41 | + |
| 42 | + |
| 43 | +public class CloseDeflaterTest { |
| 44 | + |
| 45 | + //number of bytes to write |
| 46 | + private static final int INPUT_LENGTH= 512; |
| 47 | + //OutputStream that will throw an exception during a write operation |
| 48 | + private static OutputStream outStream = new OutputStream() { |
| 49 | + @Override |
| 50 | + public void write(byte[] b, int off, int len) throws IOException { |
| 51 | + //throw exception during write |
| 52 | + throw new IOException(); |
| 53 | + } |
| 54 | + @Override |
| 55 | + public void write(byte b[]) throws IOException {} |
| 56 | + @Override |
| 57 | + public void write(int b) throws IOException {} |
| 58 | + }; |
| 59 | + private static byte[] inputBytes = new byte[INPUT_LENGTH]; |
| 60 | + private static Random rand = new Random(); |
| 61 | + |
| 62 | + @DataProvider(name = "testgzipinput") |
| 63 | + public Object[][] testGZipInput() { |
| 64 | + //testGZip will close the GZipOutputStream using close() method when the boolean |
| 65 | + //useCloseMethod is set to true and finish() method if the value is set to false |
| 66 | + return new Object[][] { |
| 67 | + { GZIPOutputStream.class, true }, |
| 68 | + { GZIPOutputStream.class, false }, |
| 69 | + }; |
| 70 | + } |
| 71 | + |
| 72 | + @DataProvider(name = "testzipjarinput") |
| 73 | + public Object[][] testZipAndJarInput() { |
| 74 | + //testZipAndJarInput will perfrom write/closeEntry operations on JarOutputStream when the boolean |
| 75 | + //useJar is set to true and on ZipOutputStream if the value is set to false |
| 76 | + return new Object[][] { |
| 77 | + { JarOutputStream.class, true }, |
| 78 | + { ZipOutputStream.class, false }, |
| 79 | + }; |
| 80 | + } |
| 81 | + |
| 82 | + @BeforeTest |
| 83 | + public void before_test() |
| 84 | + { |
| 85 | + //add inputBytes array with random bytes to write into Zip |
| 86 | + rand.nextBytes(inputBytes); |
| 87 | + } |
| 88 | + |
| 89 | + //Test for infinite loop by writing bytes to closed GZIPOutputStream |
| 90 | + @Test(dataProvider = "testgzipinput") |
| 91 | + public void testGZip(Class<?> type, boolean useCloseMethod) throws IOException { |
| 92 | + GZIPOutputStream zip = new GZIPOutputStream(outStream); |
| 93 | + try { |
| 94 | + zip.write(inputBytes, 0, INPUT_LENGTH); |
| 95 | + //close zip |
| 96 | + if(useCloseMethod) { |
| 97 | + zip.close(); |
| 98 | + } else { |
| 99 | + zip.finish(); |
| 100 | + } |
| 101 | + } catch (IOException e) { |
| 102 | + //expected |
| 103 | + } |
| 104 | + for (int i = 0; i < 3; i++) { |
| 105 | + try { |
| 106 | + //write on a closed GZIPOutputStream |
| 107 | + zip.write(inputBytes, 0, INPUT_LENGTH); |
| 108 | + fail("Deflater closed exception not thrown"); |
| 109 | + } catch (NullPointerException e) { |
| 110 | + //expected , Deflater has been closed exception |
| 111 | + } |
| 112 | + } |
| 113 | + } |
| 114 | + |
| 115 | + //Test for infinite loop by writing bytes to closed ZipOutputStream/JarOutputStream |
| 116 | + @Test(dataProvider = "testzipjarinput") |
| 117 | + public void testZipCloseEntry(Class<?> type,boolean useJar) throws IOException { |
| 118 | + ZipOutputStream zip = null; |
| 119 | + if(useJar) { |
| 120 | + zip = new JarOutputStream(outStream); |
| 121 | + } else { |
| 122 | + zip = new ZipOutputStream(outStream); |
| 123 | + } |
| 124 | + try { |
| 125 | + zip.putNextEntry(new ZipEntry("")); |
| 126 | + } catch (IOException e) { |
| 127 | + //expected to throw IOException since putNextEntry calls write method |
| 128 | + } |
| 129 | + try { |
| 130 | + zip.write(inputBytes, 0, INPUT_LENGTH); |
| 131 | + //close zip entry |
| 132 | + zip.closeEntry(); |
| 133 | + } catch (IOException e) { |
| 134 | + //expected |
| 135 | + } |
| 136 | + for (int i = 0; i < 3; i++) { |
| 137 | + try { |
| 138 | + //write on a closed ZipOutputStream |
| 139 | + zip.write(inputBytes, 0, INPUT_LENGTH); |
| 140 | + fail("Deflater closed exception not thrown"); |
| 141 | + } catch (NullPointerException e) { |
| 142 | + //expected , Deflater has been closed exception |
| 143 | + } |
| 144 | + } |
| 145 | + } |
| 146 | + |
| 147 | +} |
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