[jira] [Resolved] (WW-4257) ParametersInterceptor uses same method on ParameterNameAware interface to validate parameters and properties

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

     [ https://issues.apache.org/jira/browse/WW-4257?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Lukasz Lenart resolved WW-4257.
-------------------------------

    Resolution: Fixed
      Assignee: Lukasz Lenart

Patch applied, thanks!

> ParametersInterceptor uses same method on ParameterNameAware interface to validate parameters and properties
> ------------------------------------------------------------------------------------------------------------
>
>                 Key: WW-4257
>                 URL: https://issues.apache.org/jira/browse/WW-4257
>             Project: Struts 2
>          Issue Type: Bug
>    Affects Versions: 2.3.16
>            Reporter: Christoph Lenggenhager
>            Assignee: Lukasz Lenart
>             Fix For: 2.3.17
>
>         Attachments: ww-4257.patch
>
>
> With version 2.3.16, the {{ParametersInterceptor}} uses the same method to validate parameter names and property names.
> As we use the {{ParameterNameAware}} interface to implement parameter whitelisting on action level, this breaks our case.
> It might not be how it is intended, but validating a property independent of the actual bean breaks our current implementation.
> Possible fixes would be:
> - alter {{ParameterNameAware}} to have an additional separate method to validate properties
> - introduce a new {{PropertyNameAware}} interface
> - introduce a new {{ParameterAndPropertyNameAware}} interface
> One could also consider to ignore the {{ParameterNameAware}} interface when validating properties, as for a parameter {{foo.bar}}, the values {{foo.bar}}, {{foo}}, and {{bar}} are passed to the ParameterNameAware interface, which one could see as a bit redundant. Especially given the fact that a context in the case of property validation is not provided. Therefore, it is impossible for the implementation to distinguish between a parameter and a property.



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