[jira] [Created] (NIFI-11787) Add property to configure Min Inflate Ratio in ConvertExcelToCSVProcessor

["Matt Burgess (Jira)" <ji...@apache.org>]

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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