[jira] [Commented] (SLING-7231) Move to owasp sanitizer library

["Gimo (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SLING-7231?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16394298#comment-16394298 ] 

Gimo commented on SLING-7231:
-----------------------------

Hi,

I am a Computer Science and Engineering Undergraduate of University of Moratuwa

I would like to work on this issue as my GSOC 2018 project. Would you please help me to understand the scope of this.

Best Regards,

> Move to owasp sanitizer library
> -------------------------------
>
>                 Key: SLING-7231
>                 URL: https://issues.apache.org/jira/browse/SLING-7231
>             Project: Sling
>          Issue Type: Improvement
>          Components: XSS Protection API
>            Reporter: Carsten Ziegeler
>            Priority: Critical
>              Labels: gsoc2018
>             Fix For: XSS Protection API 2.1.0
>
>
> While looking at the extensive dependency list of the XSS module (which are all caused by the embedded owasp.org artifacts), I found out that the versions we use are outdated.
> So I think we should update those to the latest.
> Furthermore, the embedded antisamy library does not look to be maintained anymore
> (https://www.owasp.org/index.php/Category:OWASP_AntiSamy_Project)
> instead the html sanitizer looks much fresher and claims to be faster
> https://www.owasp.org/index.php/OWASP_Java_HTML_Sanitizer_Project
> I think we should switch. Quick analysis:
> Pros:
>     Actively maintained
>     Much faster
>     Lightweight (also from a dependency POV)
> Cons:
>     Incompatible (and runtime-object based) configuration
>     Not completely feature equivalent (but close enough and better in some aspects)
> Some investigation is needed on how
> a) filter rules can be configured (e.g. sling configurations, file based, code bundle, ... ?)
> b) existing configurations can be migrated 



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