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https://issues.apache.org/jira/browse/NIFI-3853?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16011634#comment-16011634
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ASF subversion and git services commented on NIFI-3853:
-------------------------------------------------------
Commit 6ffb78d40465daff3b77a3b426732b5b515e3233 in nifi's branch
refs/heads/master from [~mcgilman]
[ https://git-wip-us.apache.org/repos/asf?p=nifi.git;h=6ffb78d ]
NIFI-3853:
- Filtering out certain control characters and unpaired Unicode surrogate
codepoints prior to saving the flow.xml.
This closes #1784.
Signed-off-by: Andy LoPresto <[email protected]>
> Escape configurations prior to writing flow.xml
> -----------------------------------------------
>
> Key: NIFI-3853
> URL: https://issues.apache.org/jira/browse/NIFI-3853
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Reporter: Matt Gilman
> Assignee: Matt Gilman
> Priority: Critical
> Fix For: 1.3.0
>
>
> If invalid characters are entered through the UI, they can corrupt the
> flow.xml.gz making it unparsable on future restarts. Once in this state, the
> flow.xml.gz needs to be hand-edited to remove the invalid characters.
> Characters outside the following ranges may cause issues:
> {code}
> #x9 | #xA | #xD | [#x20-#xD7FF] | [#xE000-#xFFFD] | [#x10000-#x10FFFF]
> {code}
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