| /* |
| * Copyright (c) 2016, 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 8145014 |
| * @summary Verify reader correctly fails for zero-entry IFDs and EOFs |
| * encountered in locateImage(). |
| */ |
| |
| import java.awt.Image; |
| import java.awt.image.*; |
| import java.io.*; |
| import java.util.Iterator; |
| import javax.imageio.*; |
| import javax.imageio.stream.*; |
| |
| public class BogusSecondImageTest { |
| public static void main(String[] args) throws Throwable { |
| int failures = 0; |
| |
| try { |
| testZeroEntryIFD(); |
| } catch (Exception e) { |
| System.out.printf("Failed testZeroEntryIFD: %s%n", e); |
| failures++; |
| } |
| |
| try { |
| testOutOfStreamIFD(); |
| } catch (Exception e) { |
| System.out.printf("Failed testOutOfStreamIFD: %s%n", e); |
| failures++; |
| } |
| |
| if (failures == 0) { |
| System.out.println("Test succeeded"); |
| } else { |
| throw new RuntimeException |
| ("Test failed with " + failures + " errors"); |
| } |
| } |
| |
| private static void testZeroEntryIFD() throws Exception { |
| // Create an image. |
| File f = createImageFile(); |
| |
| ImageOutputStream s = new FileImageOutputStream(f); |
| long length = s.length(); |
| |
| // Skip the endianness and magic number |
| s.skipBytes(4); |
| |
| // Read and seek to offset of 0th IFD |
| long ifd0 = s.readUnsignedInt(); |
| s.seek(ifd0); |
| |
| // Read number of 0th IFD entries and skip over them |
| int entries0 = s.readUnsignedShort(); |
| s.skipBytes(12*entries0); |
| |
| // Write the offset of the 1st IFD as the current file length |
| s.write((int)length); |
| |
| // Seek to the 1st IFD and write a zero entry count to it |
| s.seek(length); |
| s.writeShort(0); |
| s.close(); |
| |
| try { |
| Load(f); |
| } catch (Exception e) { |
| throw e; |
| } finally { |
| f.delete(); |
| } |
| } |
| |
| private static void testOutOfStreamIFD() throws Exception { |
| // Create an image. |
| File f = createImageFile(); |
| ImageOutputStream s = new FileImageOutputStream(f); |
| long length = s.length(); |
| |
| // Skip the endianness and magic number |
| s.skipBytes(4); |
| |
| // Read and seek to offset of 0th IFD |
| long ifd0 = s.readUnsignedInt(); |
| s.seek(ifd0); |
| |
| // Read number of 0th IFD entries and skip over them |
| int entries0 = s.readUnsignedShort(); |
| s.skipBytes(12*entries0); |
| |
| // Write the offset of the 1st IFD as the current file length + 7 |
| s.write((int)length + 7); |
| s.close(); |
| |
| try { |
| Load(f); |
| } catch (Exception e) { |
| throw e; |
| } finally { |
| f.delete(); |
| } |
| } |
| |
| private static File createImageFile() throws Exception { |
| BufferedImage im = |
| new BufferedImage(100, 100, BufferedImage.TYPE_BYTE_GRAY); |
| File f = File.createTempFile("BogusSecondImage", "tif", new File(".")); |
| f.deleteOnExit(); |
| if (!ImageIO.write(im, "TIFF", f)) { |
| throw new RuntimeException("Failed to write " + f); |
| } |
| return f; |
| } |
| |
| private final static boolean printTrace = false; |
| |
| public static void Load(File file) { |
| if (!file.exists()) { |
| throw new IllegalArgumentException(file + " does not exist"); |
| } else if (!file.isFile()) { |
| throw new IllegalArgumentException(file + " is not a regular file"); |
| } else if (!file.canRead()) { |
| throw new IllegalArgumentException(file + " cannot be read"); |
| } |
| |
| ImageInputStream input = null; |
| try { |
| input = ImageIO.createImageInputStream(file); |
| } catch (Throwable e) { |
| System.err.println("NOK: createImageInputStream()\t" + e.getMessage()); |
| if (printTrace) { e.printStackTrace(); } |
| return; |
| } |
| |
| Iterator<ImageReader> readers = ImageIO.getImageReadersByFormatName("TIFF"); |
| if (!readers.hasNext()) { throw new RuntimeException("No readers available for TIFF"); } |
| ImageReader reader = readers.next(); |
| reader.setInput(input); |
| |
| Image images[] = null; |
| int numImages = 0; |
| |
| int failures = 0; |
| try { |
| numImages = reader.getNumImages(true); |
| images = new Image[numImages]; |
| } catch (Throwable e) { |
| failures++; |
| System.err.println("NOK: getNumImages()\t" + e.getMessage()); |
| if (printTrace) { e.printStackTrace(); } |
| } |
| System.out.printf("numImages %d%n", numImages); |
| |
| for (int i = 0; i < numImages; i++) { |
| System.out.printf("reading image %d%n", i); |
| try { |
| images[i] = reader.read(i); |
| } catch (Throwable e) { |
| failures++; |
| System.err.println("NOK: read()\t" + e.getMessage()); |
| if (printTrace) { e.printStackTrace(); } |
| } |
| } |
| |
| if (failures == 0) { |
| System.err.println("OK"); |
| } else { |
| throw new RuntimeException("NOK"); |
| } |
| } |
| } |