Matt Burgess created NIFI-11787:
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Summary: Add property to configure Min Inflate Ratio in
ConvertExcelToCSVProcessor
Key: NIFI-11787
URL: https://issues.apache.org/jira/browse/NIFI-11787
Project: Apache NiFi
Issue Type: Improvement
Components: Extensions
Reporter: Matt Burgess
When working with Excel files that are very sparse (i.e. contain a large number
of empty cells), an error can be thrown such as:
java.io.IOException: Zip bomb detected! The file would exceed the max. ratio of
compressed file size to the size of the expanded data. This may indicate that
the file is used to inflate memory usage and thus could pose a security risk.
You can adjust this limit via ZipSecureFile.setMinInflateRatio() if you need to
work with files which exceed this limit. Uncompressed size: 16640363,
Raw/compressed size: 166400, ratio: 0.010000 Limits: MIN_INFLATE_RATIO: 0.010000
A property can be added (set to the aforementioned default) to
ConvertExcelToCSVProcessor to specify the minimum inflation ratio, for use
cases where the file is trusted but decompresses to a size whose ratio exceeds
the minimum.
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