104 lines
3.7 KiB
Java
104 lines
3.7 KiB
Java
/*
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* Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/**
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* @test
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* @bug 8190512
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* @summary Test verifies whether PNGImageReader throws IIOException with proper
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* message or not when IHDR chunk contains negative value for width
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* and height.
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* @run main PngNegativeDimensionTest
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*/
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import java.io.ByteArrayInputStream;
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import java.io.InputStream;
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import java.util.Base64;
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import javax.imageio.ImageIO;
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public class PngNegativeDimensionTest {
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private static String negativeWidthString = "iVBORw0KGgoAAAANSUhEUoAAAAEAA"
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+ "AABCAAAAAA6fptVAAAACklEQVQYV2P4DwABAQEAWk1v8QAAAABJRU5ErkJgggo=";
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private static String negativeHeightString = "iVBORw0KGgoAAAANSUhEUgAAAAGAA"
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+ "AABCAAAAAA6fptVAAAACklEQVQYV2P4DwABAQEAWk1v8QAAAABJRU5ErkJgggo=";
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private static InputStream input;
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private static Boolean failed = false;
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public static void main(String[] args) {
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// Create InputStream
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byte[] inputBytes = Base64.getDecoder().decode(negativeWidthString);
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input = new ByteArrayInputStream(inputBytes);
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// Attempt to read PNG with negative IHDR width
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readNegativeIHDRWidthImage();
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inputBytes = Base64.getDecoder().decode(negativeHeightString);
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input = new ByteArrayInputStream(inputBytes);
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// Attempt to read PNG with negative IHDR height
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readNegativeIHDRHeightImage();
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if (failed) {
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throw new RuntimeException("Test didnt throw proper IIOException"
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+ " when IHDR width/height is negative");
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}
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}
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private static void readNegativeIHDRWidthImage() {
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try {
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ImageIO.read(input);
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} catch (Exception e) {
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/*
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* We expect the test case to throw IIOException with message
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* under root cause as "Image width <= 0!". If it throws
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* any other message or exception test will fail.
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*/
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Throwable cause = e.getCause();
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if (cause == null ||
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(!(cause.getMessage().equals("Image width <= 0!"))))
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{
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failed = true;
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}
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}
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}
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private static void readNegativeIHDRHeightImage() {
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try {
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ImageIO.read(input);
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} catch (Exception e) {
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/*
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* We expect the test case to throw IIOException with message
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* under root cause as "Image height <= 0!". If it throws
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* any other message or exception test will fail.
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*/
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Throwable cause = e.getCause();
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if (cause == null ||
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(!(cause.getMessage().equals("Image height <= 0!"))))
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{
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failed = true;
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}
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}
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}
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}
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