69 lines
2.8 KiB
Java
69 lines
2.8 KiB
Java
/*
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* Copyright (c) 2020, 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 8195841
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* @summary Test verifies that PNGImageReader doesn't allow creation of
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* non null terminated keywords consuming full length where they
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* should be null terminated
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* @run main MaxLengthKeywordReadTest
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*/
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import java.io.ByteArrayInputStream;
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import java.io.IOException;
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import java.util.Base64;
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import java.util.Iterator;
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import javax.imageio.IIOException;
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import javax.imageio.ImageIO;
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import javax.imageio.ImageReader;
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import javax.imageio.stream.ImageInputStream;
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public class MaxLengthKeywordReadTest {
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// PNG image stream having non null terminated keyword of length 80
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// in tEXt chunk
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private static String inputImageBase64 = "iVBORw0KGgoAAAANSUhEUgAAAAEAAA" +
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"ABCAAAAAA6fptVAAAAUXRFWHRBdXRob3JlZEF1dGhvcmVkQXV0aG9yZWRBdXRob" +
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"3JlZEF1dGhvcmVkQXV0aG9yZWRBdXRob3JlZEF1dGhvcmVkQXV0aG9yZWRBdXRo" +
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"b3JlZAAhn0sLAAAACklEQVR4XmP4DwABAQEAJwnd2gAAAABJRU5ErkJggg==";
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public static void main(String[] args) throws IOException {
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byte[] inputBytes = Base64.getDecoder().decode(inputImageBase64);
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ByteArrayInputStream bais = new ByteArrayInputStream(inputBytes);
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ImageInputStream input = ImageIO.createImageInputStream(bais);
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Iterator iter = ImageIO.getImageReaders(input);
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ImageReader reader = (ImageReader) iter.next();
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reader.setInput(input, false, false);
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try {
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reader.read(0, reader.getDefaultReadParam());
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} catch (IIOException e) {
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// we expect it to throw IIOException
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if (e.getCause().getMessage() !=
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"Found non null terminated string") {
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throw new RuntimeException("Test failed. Did not get " +
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"expected IIOException");
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}
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}
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}
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}
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