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#843: Correctly handle empty image resources section.

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This commit is contained in:
Harald Kuhr 2023-10-20 12:26:36 +02:00
parent 4d3f691e6a
commit 9720a931c5
1 changed files with 18 additions and 12 deletions
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30
imageio/imageio-psd/src/main/java/com/twelvemonkeys/imageio/plugins/psd/PSDImageReader.java
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@ -864,21 +864,27 @@ public final class PSDImageReader extends ImageReaderBase {
long imageResourcesLength = imageInput.readUnsignedInt();
if (pParseData && metadata.imageResources == null && imageResourcesLength > 0) {
long expectedEnd = imageInput.getStreamPosition() + imageResourcesLength;
metadata.imageResources = new ArrayList<>();
while (imageInput.getStreamPosition() < expectedEnd) {
PSDImageResource resource = PSDImageResource.read(imageInput);
metadata.imageResources.add(resource);
if (pParseData && metadata.imageResources == null) {
if (imageResourcesLength == 0) {
metadata.imageResources = Collections.emptyList();
}
else {
metadata.imageResources = new ArrayList<>();
if (DEBUG) {
System.out.println("imageResources: " + metadata.imageResources);
}
long expectedEnd = imageInput.getStreamPosition() + imageResourcesLength;
if (imageInput.getStreamPosition() != expectedEnd) {
throw new IIOException("Corrupt PSD document"); // ..or maybe just a bug in the reader.. ;-)
while (imageInput.getStreamPosition() < expectedEnd) {
PSDImageResource resource = PSDImageResource.read(imageInput);
metadata.imageResources.add(resource);
}
if (DEBUG) {
System.out.println("imageResources: " + metadata.imageResources);
}
if (imageInput.getStreamPosition() != expectedEnd) {
throw new IIOException("Corrupt PSD document"); // ..or maybe just a bug in the reader.. ;-)
}
}
}