Mark Ward created NIFI-11084:
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Summary: Character/text data "mis-identified" by IdentifyMimeType
processor
Key: NIFI-11084
URL: https://issues.apache.org/jira/browse/NIFI-11084
Project: Apache NiFi
Issue Type: Bug
Components: Core Framework
Affects Versions: 1.19.1, 1.15.2
Environment: Windows Server 2019, Java 11.0.17
Reporter: Mark Ward
Attachments: mime_type_mis-id_file.csv
When *IdentifyMimeType* is presented with a text file with a `.csv` extension
and the first two characters of the content as `P2`, the processor
mis-identifies the mime.extension as `pgm` and mime.type as
`image/x-portable-graymap`.
The processor's *Use Filename In Detection* property is set to `true`.
An example file is attached and the following flow and be used to reproduce:
*GetFile* > *IdentifyMimeType* where the outputted flowfile's attributes can be
inspected.
This has been tested on NiFi versions `1.15.2` and `1.19.1` both running on a
Window's Server 2019 instance.
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