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From "Aymeric Levaux (JIRA)" <j...@apache.org>
Subject [jira] Created: (WW-1976) FileUplaod does not ignore 0Kb files when using Jakarta FileUpload impl
Date Thu, 07 Jun 2007 12:27:27 GMT
FileUplaod does not ignore 0Kb files when using Jakarta FileUpload impl
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                 Key: WW-1976
                 URL: https://issues.apache.org/struts/browse/WW-1976
             Project: Struts 2
          Issue Type: Bug
          Components: Interceptors
    Affects Versions: 2.0.8
            Reporter: Aymeric Levaux


When not selecting any file to upload in a file input, Struts does not ignore the 0 byte file
returned by jakarta FileUpload.
This means that a file is injected in the action even if nothing was uploaded. 

In webwork the check was done in the constructor of  com.opensymphony.webwork.dispatcher.multipart.JakartaMultiPartRequest:

else if (item.getSize() == 0) {
  log.warn("Item is a file upload of 0 size, ignoring");
}

In struts the parsing of the request moved from the constructor to a parse method but the
above check disappeared.

Additionally this behaviour is inconsistant with the "pell" implementation that ignores 0
byte files.

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