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Manual merge of #223

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This commit is contained in:
Harald Kuhr 2016-04-21 15:30:20 +02:00
commit f382f4b5f9
3 changed files with 44 additions and 38 deletions
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63
imageio/imageio-metadata/src/main/java/com/twelvemonkeys/imageio/metadata/exif/EXIFReader.java
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@ -71,7 +71,7 @@ public final class EXIFReader extends MetadataReader {
else if (bom[0] == 'M' && bom[1] == 'M') {
input.setByteOrder(ByteOrder.BIG_ENDIAN);
}
else {
else {
throw new IIOException(String.format("Invalid TIFF byte order mark '%s', expected: 'II' or 'MM'", StringUtil.decode(bom, 0, bom.length, "ASCII")));
}
@ -79,7 +79,7 @@ public final class EXIFReader extends MetadataReader {
// http://www.awaresystems.be/imaging/tiff/bigtiff.html
int magic = input.readUnsignedShort();
if (magic != TIFF.TIFF_MAGIC) {
throw new IIOException(String.format("Wrong TIFF magic in EXIF data: %04x, expected: %04x", magic, TIFF.TIFF_MAGIC));
throw new IIOException(String.format("Wrong TIFF magic in EXIF data: %04x, expected: %04x", magic, TIFF.TIFF_MAGIC));
}
long directoryOffset = input.readUnsignedInt();
@ -105,16 +105,16 @@ public final class EXIFReader extends MetadataReader {
}
for (int i = 0; i < entryCount; i++) {
EXIFEntry entry = readEntry(pInput);
try {
EXIFEntry entry = readEntry(pInput);
if (entry == null) {
// System.err.println("Expected: " + entryCount + " values, found only " + i);
// TODO: Log warning?
nextOffset = 0;
if (entry != null) {
entries.add(entry);
}
}
catch (IIOException e) {
break;
}
entries.add(entry);
}
if (readLinked) {
@ -176,7 +176,7 @@ public final class EXIFReader extends MetadataReader {
// Replace the entry with parsed data
entries.set(i, new EXIFEntry(tagId, subIFDs.get(0), entry.getType()));
}
else {
else {
// Replace the entry with parsed data
entries.set(i, new EXIFEntry(tagId, subIFDs.toArray(new IFD[subIFDs.size()]), entry.getType()));
}
@ -213,7 +213,9 @@ public final class EXIFReader extends MetadataReader {
offsets = (long[]) value;
}
else {
throw new IIOException(String.format("Unknown pointer type: %s", (value != null ? value.getClass() : null)));
throw new IIOException(String.format("Unknown pointer type: %s", (value != null
? value.getClass()
: null)));
}
return offsets;
@ -224,11 +226,6 @@ public final class EXIFReader extends MetadataReader {
int tagId = pInput.readUnsignedShort();
short type = pInput.readShort();
// This isn't really an entry, and the directory entry count was wrong OR bad data...
if (tagId == 0 && type == 0) {
return null;
}
int count = pInput.readInt(); // Number of values
// It's probably a spec violation to have count 0, but we'll be lenient about it
@ -237,32 +234,33 @@ public final class EXIFReader extends MetadataReader {
}
if (type <= 0 || type > 13) {
pInput.skipBytes(4); // read Value
// Invalid tag, this is just for debugging
long offset = pInput.getStreamPosition() - 8l;
long offset = pInput.getStreamPosition() - 12l;
if (DEBUG) {
System.err.printf("Bad EXIF data @%08x\n", pInput.getStreamPosition());
System.err.println("tagId: " + tagId + (tagId <= 0 ? " (INVALID)" : ""));
System.err.println("type: " + type + " (INVALID)");
System.err.println("count: " + count);
}
pInput.mark();
pInput.seek(offset);
pInput.mark();
pInput.seek(offset);
try {
byte[] bytes = new byte[8 + Math.min(120, Math.max(24, count))];
int len = pInput.read(bytes);
try {
byte[] bytes = new byte[8 + Math.min(120, Math.max(24, count))];
int len = pInput.read(bytes);
if (DEBUG) {
System.err.print(HexDump.dump(offset, bytes, 0, len));
System.err.println(len < count ? "[...]" : "");
if (DEBUG) {
System.err.print(HexDump.dump(offset, bytes, 0, len));
System.err.println(len < count ? "[...]" : "");
}
}
finally {
pInput.reset();
}
}
finally {
pInput.reset();
}
return null;
}
@ -510,7 +508,8 @@ public final class EXIFReader extends MetadataReader {
//////////////////////
// TODO: Stream based hex dump util?
public static class HexDump {
private HexDump() {}
private HexDump() {
}
private static final int WIDTH = 32;
@ -524,7 +523,7 @@ public final class EXIFReader extends MetadataReader {
int i;
for (i = 0; i < len; i++) {
if (i % WIDTH == 0) {
if (i > 0 ) {
if (i > 0) {
builder.append("\n");
}
builder.append(String.format("%08x: ", i + off + offset));

17
imageio/imageio-metadata/src/test/java/com/twelvemonkeys/imageio/metadata/exif/EXIFReaderTest.java
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@ -279,10 +279,17 @@ public class EXIFReaderTest extends MetadataReaderAbstractTest {
@Test
public void testReadExifWithMissingEOFMarker() throws IOException {
ImageInputStream stream = ImageIO.createImageInputStream(getResource("/exif/noeof.tif"));
CompoundDirectory directory = (CompoundDirectory) createReader().read(stream);
assertEquals(15, directory.size());
assertEquals(1, directory.directoryCount());
stream.close();
try (ImageInputStream stream = ImageIO.createImageInputStream(getResource("/exif/noeof.tif"))) {
CompoundDirectory directory = (CompoundDirectory) createReader().read(stream);
assertEquals(15, directory.size());
assertEquals(1, directory.directoryCount());
}
}
public void testReadExifWithEmptyTag() throws IOException {
try (ImageInputStream stream = ImageIO.createImageInputStream(getResource("/exif/emptyexiftag.tif"))) {
CompoundDirectory directory = (CompoundDirectory) createReader().read(stream);
assertEquals(3, directory.directoryCount());
}
}
}

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imageio/imageio-metadata/src/test/resources/exif/emptyexiftag.tif Normal file
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