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Posted to user@struts.apache.org by Joey Ebright <je...@attbi.com> on 2003/02/09 22:19:49 UTC
RE: Problem with empty file upload field
I too have the same problem - whenever the user does not supply a file
to upload I get an exception. I have tried the 1.1-b3 release of struts
and the 1.6 release of the commons and recieve the same error from
BeanUtils.populate - IllegalArgumentException...
Have you made any progress on this front?
-Joey
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Re: Problem with empty file upload field
Posted by Joey Ebright <je...@attbi.com>.
I do not think it does, although I have not tested it - I don't run
Windows, sorry. However after reading other people's posts and the bug
report from mozilla I would make an assumption that it does not. It
would be interesting to hear back from anyone if they can state otherwise.
Peng Tuck Kwok wrote:
> Does it affect other browsers like ie ?
> Joey Ebright wrote:
>
>> I found that my problem stemmed from a bug in Mozilla 0.99. Once I
>> upgraded my Mozilla browser to version 1.2.1 the problem went away.
>> You can find details on this bug here:
>> http://bugzilla.mozilla.org/show_bug.cgi?id=132069
>>
>> Thanks for all who offered feedback!!!
>>
>> Joey Ebright wrote:
>>
>>> I too have the same problem - whenever the user does not supply a
>>> file to upload I get an exception. I have tried the 1.1-b3 release
>>> of struts and the 1.6 release of the commons and recieve the same
>>> error from BeanUtils.populate - IllegalArgumentException...
>>>
>>> Have you made any progress on this front?
>>>
>>> -Joey
>>>
>>>
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: struts-user-unsubscribe@jakarta.apache.org
>>> For additional commands, e-mail: struts-user-help@jakarta.apache.org
>>>
>>>
>>
>>
>>
>>
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>>
>>
>
>
>
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Re: Problem with empty file upload field
Posted by Peng Tuck Kwok <pe...@makmal.net>.
Does it affect other browsers like ie ?
Joey Ebright wrote:
> I found that my problem stemmed from a bug in Mozilla 0.99. Once I
> upgraded my Mozilla browser to version 1.2.1 the problem went away. You
> can find details on this bug here:
> http://bugzilla.mozilla.org/show_bug.cgi?id=132069
>
> Thanks for all who offered feedback!!!
>
> Joey Ebright wrote:
>
>> I too have the same problem - whenever the user does not supply a file
>> to upload I get an exception. I have tried the 1.1-b3 release of
>> struts and the 1.6 release of the commons and recieve the same error
>> from BeanUtils.populate - IllegalArgumentException...
>>
>> Have you made any progress on this front?
>>
>> -Joey
>>
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: struts-user-unsubscribe@jakarta.apache.org
>> For additional commands, e-mail: struts-user-help@jakarta.apache.org
>>
>>
>
>
>
>
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>
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Re: Problem with empty file upload field
Posted by Joey Ebright <je...@attbi.com>.
What mozilla is doing is not populating the necessary information to the
server for the file upload when the user does not enter a file at all
(not just failing to use a FormFile versus a String) . If you read the
thread on the bug report I attached below this will become more clear
Cynthia. Mozilla fixed this bug in order to be compatible with other
browsers so this leads me to believe this behavior is not present in
other browsers. I have not confirmed this though on IE, but Netscape is
probably okay since it is Mozilla-based.
As for a workaround, the best I got before I found that upgrading
Mozilla fixed my problem, was to do client-side validation with
JavaScript. In the end though this only ensured the user did specify a
value for the file to upload. It did not ensure the file was valid,
which BTW if the file is not valid you will get the same error :(
If I had to write a more elegant workaround, I would look specifically
for this error condition in an exception handler and return a more
sophisticated error to the user if the did not enter a file or entered
an invalid file (e.g. file does not exist in path specified).
Good luck, let me know how it turns out!
-Joey
Cynthia Jeness wrote:
>Since I am running Mozilla 0.99, this may be the cause of the problem;
>however, we have little control over what browsers our customers choose to
>run. If Mozilla does not send back a file name, then that piece of
>information can be missing from my error message to the client. However,
>the error itself needs to be handled more gracefully. It would be daunting
>to the normal user to be presented with an invalid argument exception on
>"bean populate" and a stack trace. I have tried to understand where the
>error occurs. It seems to me that when Mozilla cannot process the filename
>that the user has entered, the file name is sent back as part of the
>request parameter stream and the commons "populate" routine is handling it
>like a string. It fails because it cannot find a write method for the
>parameter which accepts a String. I have tried providing a setter which
>accepts an Object; however, then the file transfer does not occur when a
>proper file name is supplied. I have also tried two different setters --
>one with a String and one with the FormFile. This also does not work.
>
>So, in short, are there any suggestions for a workaround or plans to handle
>the error situation more gracefully in Struts or the "commons-beanutils"
>routines?
>
>Of course, if Mozilla 0.99 is the only browser that has this problem and
>Netscape 4.6+ or IE work correctly along with later versions of Mozilla,
>then a workaround may not be as necessary.
>
>Cynthia Jeness
>
>Joey Ebright wrote:
>
>
>
>>I found that my problem stemmed from a bug in Mozilla 0.99. Once I
>>upgraded my Mozilla browser to version 1.2.1 the problem went away. You
>>can find details on this bug here:
>> http://bugzilla.mozilla.org/show_bug.cgi?id=132069
>>
>>Thanks for all who offered feedback!!!
>>
>>Joey Ebright wrote:
>>
>>
>>
>>>I too have the same problem - whenever the user does not supply a file
>>>to upload I get an exception. I have tried the 1.1-b3 release of
>>>struts and the 1.6 release of the commons and recieve the same error
>>>from BeanUtils.populate - IllegalArgumentException...
>>>
>>>Have you made any progress on this front?
>>>
>>>-Joey
>>>
>>>
>>>
>>>---------------------------------------------------------------------
>>>To unsubscribe, e-mail: struts-user-unsubscribe@jakarta.apache.org
>>>For additional commands, e-mail: struts-user-help@jakarta.apache.org
>>>
>>>
>>>
>>>
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>>
>>
>
>
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>
>
>
Re: Problem with empty file upload field
Posted by Cynthia Jeness <CJ...@bellsouth.net>.
Since I am running Mozilla 0.99, this may be the cause of the problem;
however, we have little control over what browsers our customers choose to
run. If Mozilla does not send back a file name, then that piece of
information can be missing from my error message to the client. However,
the error itself needs to be handled more gracefully. It would be daunting
to the normal user to be presented with an invalid argument exception on
"bean populate" and a stack trace. I have tried to understand where the
error occurs. It seems to me that when Mozilla cannot process the filename
that the user has entered, the file name is sent back as part of the
request parameter stream and the commons "populate" routine is handling it
like a string. It fails because it cannot find a write method for the
parameter which accepts a String. I have tried providing a setter which
accepts an Object; however, then the file transfer does not occur when a
proper file name is supplied. I have also tried two different setters --
one with a String and one with the FormFile. This also does not work.
So, in short, are there any suggestions for a workaround or plans to handle
the error situation more gracefully in Struts or the "commons-beanutils"
routines?
Of course, if Mozilla 0.99 is the only browser that has this problem and
Netscape 4.6+ or IE work correctly along with later versions of Mozilla,
then a workaround may not be as necessary.
Cynthia Jeness
Joey Ebright wrote:
> I found that my problem stemmed from a bug in Mozilla 0.99. Once I
> upgraded my Mozilla browser to version 1.2.1 the problem went away. You
> can find details on this bug here:
> http://bugzilla.mozilla.org/show_bug.cgi?id=132069
>
> Thanks for all who offered feedback!!!
>
> Joey Ebright wrote:
>
> > I too have the same problem - whenever the user does not supply a file
> > to upload I get an exception. I have tried the 1.1-b3 release of
> > struts and the 1.6 release of the commons and recieve the same error
> > from BeanUtils.populate - IllegalArgumentException...
> >
> > Have you made any progress on this front?
> >
> > -Joey
> >
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: struts-user-unsubscribe@jakarta.apache.org
> > For additional commands, e-mail: struts-user-help@jakarta.apache.org
> >
> >
>
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> To unsubscribe, e-mail: struts-user-unsubscribe@jakarta.apache.org
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---------------------------------------------------------------------
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Re: Problem with empty file upload field
Posted by Joey Ebright <je...@attbi.com>.
I found that my problem stemmed from a bug in Mozilla 0.99. Once I
upgraded my Mozilla browser to version 1.2.1 the problem went away. You
can find details on this bug here:
http://bugzilla.mozilla.org/show_bug.cgi?id=132069
Thanks for all who offered feedback!!!
Joey Ebright wrote:
> I too have the same problem - whenever the user does not supply a file
> to upload I get an exception. I have tried the 1.1-b3 release of
> struts and the 1.6 release of the commons and recieve the same error
> from BeanUtils.populate - IllegalArgumentException...
>
> Have you made any progress on this front?
>
> -Joey
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: struts-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: struts-user-help@jakarta.apache.org
>
>
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