[undertow-dev] Servlet request and form parameters

Stuart Douglas sdouglas at redhat.com
Tue Mar 11 18:09:03 EDT 2014


Looks like a bug. It should be fixed in Undertow upstream. 

Stuart

Michal Petrov wrote:
> I'm using getParts() but that prevents access to parameters via getParameter() and the like. Whereas calling getParts() after getParameter() works fine (loadParts() doesn't check if readStarted is true). There was no issue on WildFly 8 CR1 (Undertow 1.0.0.Beta30) but having compared the files, the loadParts() method wasn't changed, so there must've been something else that "pre-parsed" the form data.
>
> Michal
>
> ----- Original Message -----
> From: "Stuart Douglas"<sdouglas at redhat.com>
> To: "Michal Petrov"<mpetrov at redhat.com>
> Cc: undertow-dev at lists.jboss.org
> Sent: Tuesday, March 11, 2014 1:55:01 AM
> Subject: Re: [undertow-dev] Servlet request and form parameters
>
> Its how the servlet spec says it should work. Basically if you read the
> request using the ServletInputStream or the Reader, then the servlet
> container can't parse data that has already been read. The servlet spec
> makes it quite clear that you can either read the data yourself, or have
> the container parse it for you, but not both.
>
> Why are you handling multipart yourself anyway, and not just using
> HttpServletRequest.getParts()?
>
> Stuart
>
>
>
> Michal Petrov wrote:
>> Hi,
>>
>> I'm from the RichFaces team and I've run into a problem with the HttpServletRequestImpl on WildFly 8 Final (Undertow 1.0.1.Final).
>>
>> In our fileUpload component we're intercepting the request and parsing the parts to find the uploaded files, wrapping it and passing it on. Reading the parts sets readStarted to true and so in the Restore View phase when JSF is checking the request parameters they are inaccessible because readStarted stops the parsing of form data. I can work around that but I'm wondering what's the reason for preventing the parsing.
>>
>> Thanks,
>> Michal
>> _______________________________________________
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>> undertow-dev at lists.jboss.org
>> https://lists.jboss.org/mailman/listinfo/undertow-dev


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