[IMAGING-246] Invalid Block Size error prevents handling of block 1084, Macintosh NSPrintInfo

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.0-alpha1
• Component/s: Format: JPEG
• Assignee: Bruno P. Kinoshita
• Reporter: Liberty Wollerman
• Created: 10/Jan/20 16:10
• Updated: 19/May/22 04:29
• Resolved: 18/Jan/20 21:05

Description

When processing an image created on a Mac with Adobe Photoshop which contains embedded metadata having block 1084, an invalid block size error occurs.

0x043C

1084

(Photoshop CS5) Macintosh NSPrintInfo. Variable OS specific info for Macintosh. NSPrintInfo. It is recommened that you do not interpret or use this data.

 

Here is some simple test code that replicates what our application is trying to do, and recreates the error:

import org.apache.commons.imaging.ImageInfo;
import org.apache.commons.imaging.ImageReadException;
import org.apache.commons.imaging.Imaging;
import org.apache.commons.io.FileUtils;
import java.io.File;
import java.io.IOException;
import java.util.Base64;
public class Main {
 public static void main(String[] args) throws IOException, ImageReadException { 
  String fileName = "FallHarvestKitKat_07610.jpg";
  ClassLoader classLoader = ClassLoader.getSystemClassLoader(); 
  File file = new File(classLoader.getResource(fileName).getFile()); 
  byte[] fileContent = FileUtils.readFileToByteArray(file); 
  String encodedString = Base64.getEncoder().encodeToString(fileContent); 
  byte[] decodedValue = Base64.getDecoder().decode(encodedString); 
  ImageInfo imageInfo = Imaging.getImageInfo(decodedValue);
 }
}

 

Here is the resulting error:

 Exception in thread "main" org.apache.commons.imaging.ImageReadException: Invalid Block Size : 89562 > 65504Exception in thread "main" 
 org.apache.commons.imaging.ImageReadException: Invalid Block Size : 89562 > 65504 at 
 org.apache.commons.imaging.formats.jpeg.iptc.IptcParser.parseAllBlocks(IptcParser.java:318) at 
 org.apache.commons.imaging.formats.jpeg.iptc.IptcParser.parsePhotoshopSegment(IptcParser.java:119) at 
 org.apache.commons.imaging.formats.jpeg.iptc.IptcParser.parsePhotoshopSegment(IptcParser.java:112) at 
 org.apache.commons.imaging.formats.jpeg.segments.App13Segment.parsePhotoshopSegment(App13Segment.java:71) at 
 org.apache.commons.imaging.formats.jpeg.JpegImageParser.getPhotoshopMetadata(JpegImageParser.java:599) at 
 org.apache.commons.imaging.formats.jpeg.JpegImageParser.getMetadata(JpegImageParser.java:318) at 
 org.apache.commons.imaging.formats.jpeg.JpegImageParser.getImageInfo(JpegImageParser.java:739) at org.apache.commons.imaging.Imaging.getImageInfo(Imaging.java:701) at 
 org.apache.commons.imaging.Imaging.getImageInfo(Imaging.java:635) at Main.getMetaData(Main.java:22) at Main.main(Main.java:17)

 

Issue Links

• links to: GitHub Pull Request #68