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