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https://issues.apache.org/jira/browse/KNOX-3232?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tamás Marcinkovics updated KNOX-3232:
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Attachment: knoxsso-cas-test.xml
> Handle pac4j cookies with "null" value
> --------------------------------------
>
> Key: KNOX-3232
> URL: https://issues.apache.org/jira/browse/KNOX-3232
> Project: Apache Knox
> Issue Type: Task
> Components: KnoxSSO
> Affects Versions: 3.0.0
> Reporter: Tamás Marcinkovics
> Assignee: Tamás Marcinkovics
> Priority: Major
> Attachments: knoxsso-cas-test.xml
>
>
> When testing Knox SSO with Pac4j and CAS, if the user clicks on global
> logout, and does not close the browser, refreshing the homepage link results
> in a 500 internal server error due to KnoxSessionStore not being able to get
> the value of CasClient$attemptedAuthentication cookie.
> When pac4j calls the
> KnoxSessionStore.set() method with null value, we will add a
> Set-Cookie-Header with "null" value instead of empty.
> setCookieHeader = new SetCookieHeader(PAC4J_SESSION_PREFIX + key, null);
> When KnoxSessionStore.get() is called, it tries to uncompress the non-empty
> value and fails with a BufferUnderflowException.
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