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https://issues.apache.org/jira/browse/NIFI-11437?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David Handermann updated NIFI-11437:
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Status: Patch Available (was: Open)
> Improve EncryptContentPGP Content Type Detection
> ------------------------------------------------
>
> Key: NIFI-11437
> URL: https://issues.apache.org/jira/browse/NIFI-11437
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Extensions, Security
> Reporter: David Handermann
> Assignee: David Handermann
> Priority: Major
> Fix For: 1.latest, 2.latest
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> The {{EncryptContentPGP}} Processor reads the initial bytes of incoming files
> to determine whether a file is an OpenPGP message. This initial read is
> necessary to support flows with {{SignContentPGP}} creating signed OpenPGP
> messages prior to encryption.
> The current implementation uses an InputStreamCallback with
> ProcessSession.read() to run content type detection. Instead a separate read
> callback, the StreamCallback for ProcessSession.write() can be modified to
> use a buffer with {{{}PushbackInputStream{}}}. This will avoid reading the
> initial bytes multiple times.
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