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From "Paul Rivera (JIRA)" <...@myfaces.apache.org>
Subject [jira] Commented: (TOMAHAWK-1305) No error when file is uploaded larger than uploadMaxFileSize
Date Tue, 30 Sep 2008 08:47:44 GMT

    [ https://issues.apache.org/jira/browse/TOMAHAWK-1305?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12635703#action_12635703
] 

Paul Rivera commented on TOMAHAWK-1305:
---------------------------------------

This issue is similar to TOMAHAWK-6.

I was able to replicate this issue locally with tomahawk 1.1.8-SNAPSHOT.  No messages shown
in h:message even though the size was greater than uploadMaxFileSize.

I did some investigation and found out that:
  - Once commons upload determines that the size of the file being uploaded is greater than
uploadMaxFileSize, it throws a SizeLimitExceededException.  This prevents it from doing further
processing to read the request parameters.  (see org.apache.commons.fileupload.FileUploadBase)
  - RestoreViewExecutor looks for a request parameter named javax.faces.ViewState.  Since
the request parameters were not read as mentioned above, javax.faces.ViewState will be null
when RestoreViewExecutor looks for it.  RestoreViewExecutor finds no view to restore so it
will treat it as a new page.  It will call facesContext.renderResponse() to skip the other
phases and proceed with the render response phase immediately.
  - The code that adds a FacesMessage when the size limit is exceeded is inside AbstractHtmlInputFileUpload.validateValue(FacesContext
context, Object convertedValue).  This method only gets called during the validation phase,
which is skipped as mentioned above.  This is why there is no message shown in h:message.

I'm still thinking of a good way to fix this.  Maybe you have some ideas?

> No error when file is uploaded larger than uploadMaxFileSize
> ------------------------------------------------------------
>
>                 Key: TOMAHAWK-1305
>                 URL: https://issues.apache.org/jira/browse/TOMAHAWK-1305
>             Project: MyFaces Tomahawk
>          Issue Type: Bug
>          Components: File Upload
>    Affects Versions: 1.1.7-SNAPSHOT
>            Reporter: Gertjan van Oosten
>
> When a file is uploaded that is larger than the uploadMaxFileSize, the upload is ignored
but no error is shown.
> Reproducible with the fileupload example:
>   http://www.irian.at/myfacesexamples/fileupload.jsf
> Be patient, you need a file larger than 100 MBytes.

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