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https://issues.apache.org/jira/browse/HBASE-11438?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14093034#comment-14093034
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Andrew Purtell commented on HBASE-11438:
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HBASE-10883 doesn't apply if we are allowing any UTF-8 string as an
authorization. There is no invalid characters to protect against, any character
in an authorization will be valid, if such an authorization/label has been
defined. Only when parsing visibility expressions will we need to differentiate
between the characters that make up a label identifier and operators in the
expression. There we require operator-like chars in the identifier to be
quoted.
> [Visibility Controller] Support UTF8 character as Visibility Labels
> -------------------------------------------------------------------
>
> Key: HBASE-11438
> URL: https://issues.apache.org/jira/browse/HBASE-11438
> Project: HBase
> Issue Type: Improvement
> Components: security
> Affects Versions: 0.98.4
> Reporter: ramkrishna.s.vasudevan
> Assignee: ramkrishna.s.vasudevan
> Fix For: 0.98.6
>
> Attachments: HBASE-11438_v1.patch, HBASE-11438_v2.patch,
> HBASE-11438_v3.patch, HBASE-11438_v4.patch, HBASE-11438_v5.patch,
> HBASE-11438_v6.patch, HBASE-11438_v7.patch, HBASE-11438_v8.patch,
> HBASE-11438_v9.patch
>
>
> This would be an action item that we would be addressing so that the
> visibility labels could have UTF8 characters in them. Also allow the user to
> use a client supplied API that allows to specify the visibility labels inside
> double quotes such that UTF8 characters and cases like &, |, ! and double
> quotes itself could be specified with proper escape sequence. Accumulo too
> provides one such API in the client side.
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