[TIKA-1033] Tika doesn't parse embedded OLE Chart/Graph objects

• Type: Bug
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Component/s: parser
• Assignee: Unassigned
• Reporter: Michael McCandless
• Created: 27/Nov/12 11:56
• Updated: 07/Apr/16 13:51

Description

I have an example ppt that embeds a chart, but Tika mis-identifies it
as an XLS document.

The progID (oleShape.getProgID() in
HSLFExtractor.handleSlideEmbeddedResources) is MSGraph.Chart.8 ... and
we seem to detect it as Excel (application/vnd.ms-excel) but then the
ExcelExtractor hits this exception:

org.apache.poi.hssf.record.RecordFormatException: Unable to construct record instance
	at org.apache.poi.hssf.record.RecordFactory$ReflectionConstructorRecordCreator.create(RecordFactory.java:65)
	at org.apache.poi.hssf.record.RecordFactory.createSingleRecord(RecordFactory.java:301)
	at org.apache.poi.hssf.record.RecordFactoryInputStream.readNextRecord(RecordFactoryInputStream.java:285)
	at org.apache.poi.hssf.record.RecordFactoryInputStream.nextRecord(RecordFactoryInputStream.java:251)
	at org.apache.poi.hssf.eventusermodel.HSSFEventFactory.genericProcessEvents(HSSFEventFactory.java:143)
	at org.apache.poi.hssf.eventusermodel.HSSFEventFactory.processEvents(HSSFEventFactory.java:106)
	at org.apache.tika.parser.microsoft.ExcelExtractor$TikaHSSFListener.processFile(ExcelExtractor.java:302)
	at org.apache.tika.parser.microsoft.ExcelExtractor.parse(ExcelExtractor.java:147)

Since DelegatingParser silently suppresses all exceptions, when you
run TikaCLI you won't see any exception nor text extracted, but if you
run with -z, it will save 1.xls which if you then try to parse with
TikaCLI hits the above exception.

Issue Links

• is duplicated by: TIKA-1651 Add mime detection (and parsing?) for Microsoft Chart object