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https://issues.apache.org/jira/browse/SLING-4701?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14985172#comment-14985172
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Santiago GarcĂ­a Pimentel commented on SLING-4701:
-------------------------------------------------

[~kwin] brought to my attention that the documentation is not clear enough to 
tell if the current behavior is correct or not.
in 
https://sling.apache.org/documentation/the-sling-engine/authentication/authentication-authenticationhandler.html
 it implies that the check is just a string match. If this is correct, the 
current behavior is correct:
`When looking for an AuthenticationHandler the authentication handler is 
selected whose path is the longest match on the request URL `

then in  
https://sling.apache.org/documentation/the-sling-engine/authentication/authentication-framework.html
 it says that each entry represent a subtree. In this case, the current 
behavior is wrong.
`Any entry prefixed with a dash - defines a subtree for which authentication is 
not required. Any entry not prefixed with a dash or prefixed with a plus + 
defines a subtree for which authentication is required up front and thus 
anonymous access is not allowed. This list is empty by default`

> SlingAuthenticator.isAnonAllowed matches for all paths starting with the same 
> characters
> ----------------------------------------------------------------------------------------
>
>                 Key: SLING-4701
>                 URL: https://issues.apache.org/jira/browse/SLING-4701
>             Project: Sling
>          Issue Type: Bug
>          Components: Authentication
>    Affects Versions: Auth Core 1.3.6
>            Reporter: Lars Krapf
>              Labels: authentication
>         Attachments: SlingAuthenticator.patch
>
>
> The SlingAuthenticator check if anonymous access is allowed compares paths 
> with String.startsWith. If the holder.path does not end with a '/' it will 
> erroneously match a different path that starts with the same characters, even 
> if it is not a descendant of the first path. 
> Example:
> - Allow anonymous acces on '/'
> - Deny anonymous access on a path '/blubb'  
> -> Authentication is enforced on a request to '/blubb-blah' - which is wrong.



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