1 /*
2 * Copyright (c) 2008, 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 6541476 6782079
27 * @summary Write and read a PNG file including an non-latin1 iTXt chunk
28 * Test also verifies that trunkated png images does not cause
29 * an OoutOfMemory error.
30 *
31 * @run main ItxtUtf8Test
32 *
33 * @run main/othervm/timeout=10 -Xmx2m ItxtUtf8Test truncate
34 */
35
36 import java.awt.image.BufferedImage;
37 import java.io.ByteArrayInputStream;
38 import java.io.ByteArrayOutputStream;
39 import java.io.OutputStream;
40 import java.util.Arrays;
41 import java.util.List;
42 import javax.imageio.IIOException;
43 import javax.imageio.IIOImage;
44 import javax.imageio.ImageIO;
45 import javax.imageio.ImageReader;
46 import javax.imageio.ImageTypeSpecifier;
47 import javax.imageio.ImageWriter;
48 import javax.imageio.metadata.IIOMetadata;
49 import javax.imageio.stream.ImageInputStream;
50 import javax.imageio.stream.ImageOutputStream;
51 import javax.imageio.stream.MemoryCacheImageInputStream;
52 import javax.imageio.stream.MemoryCacheImageOutputStream;
53 import org.w3c.dom.DOMImplementation;
54 import org.w3c.dom.Document;
55 import org.w3c.dom.Element;
56 import org.w3c.dom.Node;
57 import org.w3c.dom.bootstrap.DOMImplementationRegistry;
58
59 public class ItxtUtf8Test {
60
61 public static final String
62 TEXT = "\u24c9\u24d4\u24e7\u24e3" +
63 "\ud835\udc13\ud835\udc1e\ud835\udc31\ud835\udc2d" +
64 "\u24c9\u24d4\u24e7\u24e3", // a repetition for compression
65 VERBATIM = "\u24e5\u24d4\u24e1\u24d1\u24d0\u24e3\u24d8\u24dc",
66 COMPRESSED = "\u24d2\u24de\u24dc\u24df\u24e1\u24d4\u24e2\u24e2\u24d4\u24d3";
67
68 public static final byte[]
69 VBYTES = {
70 (byte)0x00, (byte)0x00, (byte)0x00, (byte)0x56, // chunk length
71 (byte)0x69, (byte)0x54, (byte)0x58, (byte)0x74, // chunk type "iTXt"
72 (byte)0x76, (byte)0x65, (byte)0x72, (byte)0x62,
73 (byte)0x61, (byte)0x74, (byte)0x69, (byte)0x6d, // keyword "verbatim"
74 (byte)0x00, // separator terminating keyword
75 (byte)0x00, // compression flag
76 (byte)0x00, // compression method, must be zero
77 (byte)0x78, (byte)0x2d, (byte)0x63, (byte)0x69,
78 (byte)0x72, (byte)0x63, (byte)0x6c, (byte)0x65,
79 (byte)0x64, // language tag "x-circled"
80 (byte)0x00, // separator terminating language tag
81 (byte)0xe2, (byte)0x93, (byte)0xa5, // '\u24e5'
82 (byte)0xe2, (byte)0x93, (byte)0x94, // '\u24d4'
83 (byte)0xe2, (byte)0x93, (byte)0xa1, // '\u24e1'
84 (byte)0xe2, (byte)0x93, (byte)0x91, // '\u24d1'
85 (byte)0xe2, (byte)0x93, (byte)0x90, // '\u24d0'
86 (byte)0xe2, (byte)0x93, (byte)0xa3, // '\u24e3'
87 (byte)0xe2, (byte)0x93, (byte)0x98, // '\u24d8'
88 (byte)0xe2, (byte)0x93, (byte)0x9c, // '\u24dc'
89 (byte)0x00, // separator terminating the translated keyword
90 (byte)0xe2, (byte)0x93, (byte)0x89, // '\u24c9'
91 (byte)0xe2, (byte)0x93, (byte)0x94, // '\u24d4'
92 (byte)0xe2, (byte)0x93, (byte)0xa7, // '\u24e7'
93 (byte)0xe2, (byte)0x93, (byte)0xa3, // '\u24e3'
94 (byte)0xf0, (byte)0x9d, (byte)0x90, (byte)0x93, // '\ud835\udc13'
95 (byte)0xf0, (byte)0x9d, (byte)0x90, (byte)0x9e, // '\ud835\udc1e'
96 (byte)0xf0, (byte)0x9d, (byte)0x90, (byte)0xb1, // '\ud835\udc31'
97 (byte)0xf0, (byte)0x9d, (byte)0x90, (byte)0xad, // '\ud835\udc2d'
98 (byte)0xe2, (byte)0x93, (byte)0x89, // '\u24c9'
99 (byte)0xe2, (byte)0x93, (byte)0x94, // '\u24d4'
100 (byte)0xe2, (byte)0x93, (byte)0xa7, // '\u24e7'
101 (byte)0xe2, (byte)0x93, (byte)0xa3, // '\u24e3'
102 (byte)0xb5, (byte)0xcc, (byte)0x97, (byte)0x56 // CRC
103 },
104 CBYTES = {
105 // we don't want to check the chunk length,
106 // as this might depend on implementation.
107 (byte)0x69, (byte)0x54, (byte)0x58, (byte)0x74, // chunk type "iTXt"
108 (byte)0x63, (byte)0x6f, (byte)0x6d, (byte)0x70,
109 (byte)0x72, (byte)0x65, (byte)0x73, (byte)0x73,
110 (byte)0x65, (byte)0x64, // keyword "compressed"
111 (byte)0x00, // separator terminating keyword
112 (byte)0x01, // compression flag
113 (byte)0x00, // compression method, 0=deflate
114 (byte)0x78, (byte)0x2d, (byte)0x63, (byte)0x69,
115 (byte)0x72, (byte)0x63, (byte)0x6c, (byte)0x65,
116 (byte)0x64, // language tag "x-circled"
117 (byte)0x00, // separator terminating language tag
118 // we don't want to check the actual compressed data,
119 // as this might depend on implementation.
120 };
121 /*
122 */
123
124 public static void main(String[] args) throws Exception {
125 List argList = Arrays.asList(args);
126 if (argList.contains("truncate")) {
127 try {
128 runTest(false, true);
129 throw new AssertionError("Expect an error for truncated file");
130 }
131 catch (IIOException e) {
132 // expected an error for a truncated image file.
133 }
134 }
135 else {
136 runTest(argList.contains("dump"), false);
137 }
138 }
139
140 public static void runTest(boolean dump, boolean truncate)
141 throws Exception
142 {
143 String format = "javax_imageio_png_1.0";
144 BufferedImage img =
145 new BufferedImage(16, 16, BufferedImage.TYPE_INT_RGB);
146 ImageWriter iw = ImageIO.getImageWritersByMIMEType("image/png").next();
147 ByteArrayOutputStream os = new ByteArrayOutputStream();
148 ImageOutputStream ios = new MemoryCacheImageOutputStream(os);
149 iw.setOutput(ios);
150 IIOMetadata meta =
151 iw.getDefaultImageMetadata(new ImageTypeSpecifier(img), null);
152 DOMImplementationRegistry registry;
153 registry = DOMImplementationRegistry.newInstance();
154 DOMImplementation impl = registry.getDOMImplementation("XML 3.0");
155 Document doc = impl.createDocument(null, format, null);
156 Element root, itxt, entry;
157 root = doc.getDocumentElement();
158 root.appendChild(itxt = doc.createElement("iTXt"));
159 itxt.appendChild(entry = doc.createElement("iTXtEntry"));
160 entry.setAttribute("keyword", "verbatim");
161 entry.setAttribute("compressionFlag", "false");
162 entry.setAttribute("compressionMethod", "0");
163 entry.setAttribute("languageTag", "x-circled");
164 entry.setAttribute("translatedKeyword", VERBATIM);
165 entry.setAttribute("text", TEXT);
166 itxt.appendChild(entry = doc.createElement("iTXtEntry"));
167 entry.setAttribute("keyword", "compressed");
168 entry.setAttribute("compressionFlag", "true");
169 entry.setAttribute("compressionMethod", "0");
170 entry.setAttribute("languageTag", "x-circled");
171 entry.setAttribute("translatedKeyword", COMPRESSED);
172 entry.setAttribute("text", TEXT);
173 meta.mergeTree(format, root);
174 iw.write(new IIOImage(img, null, meta));
175 iw.dispose();
176
177 byte[] bytes = os.toByteArray();
178 if (dump)
179 System.out.write(bytes);
180 if (findBytes(VBYTES, bytes) < 0)
181 throw new AssertionError("verbatim block not found");
182 if (findBytes(CBYTES, bytes) < 0)
183 throw new AssertionError("compressed block not found");
184 int length = bytes.length;
185 if (truncate)
186 length = findBytes(VBYTES, bytes) + 32;
187
188 ImageReader ir = ImageIO.getImageReader(iw);
189 ByteArrayInputStream is = new ByteArrayInputStream(bytes, 0, length);
190 ImageInputStream iis = new MemoryCacheImageInputStream(is);
191 ir.setInput(iis);
192 meta = ir.getImageMetadata(0);
193 Node node = meta.getAsTree(format);
194 for (node = node.getFirstChild();
195 !"iTXt".equals(node.getNodeName());
196 node = node.getNextSibling());
197 boolean verbatimSeen = false, compressedSeen = false;
198 for (node = node.getFirstChild();
199 node != null;
200 node = node.getNextSibling()) {
201 entry = (Element)node;
202 String keyword = entry.getAttribute("keyword");
203 String translatedKeyword = entry.getAttribute("translatedKeyword");
204 String text = entry.getAttribute("text");
205 if ("verbatim".equals(keyword)) {
206 if (verbatimSeen) throw new AssertionError("Duplicate");
207 verbatimSeen = true;
208 if (!VERBATIM.equals(translatedKeyword))
209 throw new AssertionError("Wrong translated keyword");
210 if (!TEXT.equals(text))
211 throw new AssertionError("Wrong text");
212 }
213 else if ("compressed".equals(keyword)) {
214 if (compressedSeen) throw new AssertionError("Duplicate");
215 compressedSeen = true;
216 if (!COMPRESSED.equals(translatedKeyword))
217 throw new AssertionError("Wrong translated keyword");
218 if (!TEXT.equals(text))
219 throw new AssertionError("Wrong text");
220 }
221 else {
222 throw new AssertionError("Unexpected keyword");
223 }
224 }
225 if (!(verbatimSeen && compressedSeen))
226 throw new AssertionError("Missing chunk");
227 }
228
229 private static final int findBytes(byte[] needle, byte[] haystack) {
230 HAYSTACK: for (int h = 0; h <= haystack.length - needle.length; ++h) {
231 for (int n = 0; n < needle.length; ++n) {
232 if (needle[n] != haystack[h + n]) {
233 continue HAYSTACK;
234 }
235 }
236 return h;
237 }
238 return -1;
239 }
240
241 }