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https://issues.apache.org/jira/browse/WW-5176?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17516249#comment-17516249
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Lukasz Lenart commented on WW-5176:
-----------------------------------
You can define your own RegEx to match your case, read this
https://struts.apache.org/core-developers/file-upload.html#request-validation
> multipart/form-data parameters are not processed when charset is placed
> before boundary in Content-Type header
> --------------------------------------------------------------------------------------------------------------
>
> Key: WW-5176
> URL: https://issues.apache.org/jira/browse/WW-5176
> Project: Struts 2
> Issue Type: Bug
> Components: Dispatch Filter
> Affects Versions: 2.5.29
> Reporter: Sergey Zolotarev
> Priority: Major
>
> The regex used inside isMultipartRequest() in Dispatcher.java expects the
> charset directive to be in the middle between the media type and boundary,
> but there are third-party libraries that append it after "bounary", which
> seems legitimate to me.
> i.e. this works:
> {code:java}
> Content-Type: multipart/form-data; bounary=123467890; charset=utf-8{code}
> this doesn't work:
> {code:java}
> Content-Type: multipart/form-data; charset=utf-8; bounary=123467890{code}
>
>
>
>
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