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Posted to users@tomcat.apache.org by "Teunissen,Peter" <Pe...@Cerner.com> on 2015/05/28 21:44:59 UTC
Tomcat Valve doing Request.getParameter() consumes the stream
(Tomcat 7)
I am writing a Valve that does a getParameter on the Request. At the end of the Valve/Filter chain is a servlet that calls HttpServletRequest.getReader() returning an empty buffer (because the Valve consumed it).
I tried hacking a wrapper for the Request together and pass that into the getNext().invoke , but not much luck yet (seems to be some state in the underlying coyoteStream/Request/Inputbuffer....)
I can't imagine I'm the first to encounter this and yet I can't find a good wrapper example on the internet.
Anybody better suggestions?
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Re: Tomcat Valve doing Request.getParameter() consumes the stream
Posted by Christopher Schultz <ch...@christopherschultz.net>.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
Peter,
On 5/28/15 3:44 PM, Teunissen,Peter wrote:
> (Tomcat 7)
>
> I am writing a Valve that does a getParameter on the Request. At
> the end of the Valve/Filter chain is a servlet that calls
> HttpServletRequest.getReader() returning an empty buffer (because
> the Valve consumed it).
>
> I tried hacking a wrapper for the Request together and pass that
> into the getNext().invoke , but not much luck yet (seems to be some
> state in the underlying coyoteStream/Request/Inputbuffer....)
>
> I can't imagine I'm the first to encounter this and yet I can't
> find a good wrapper example on the internet.
>
> Anybody better suggestions?
You might be able to adapt this Filter I wrote to do the same thing:
http://markmail.org/thread/fumpfuspt7a3nesz
- -chris
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Re: Tomcat Valve doing Request.getParameter() consumes the stream
Posted by Violeta Georgieva <mi...@gmail.com>.
Hi,
2015-05-28 22:44 GMT+03:00 Teunissen,Peter <Pe...@cerner.com>:
>
> (Tomcat 7)
>
> I am writing a Valve that does a getParameter on the Request. At the end
of the Valve/Filter chain is a servlet that calls
HttpServletRequest.getReader() returning an empty buffer (because the Valve
consumed it).
>
> I tried hacking a wrapper for the Request together and pass that into the
getNext().invoke , but not much luck yet (seems to be some state in the
underlying coyoteStream/Request/Inputbuffer....)
>
> I can't imagine I'm the first to encounter this and yet I can't find a
good wrapper example on the internet.
>
> Anybody better suggestions?
You may want to check this enhancement [1].
Regards,
Violeta
[1] https://bz.apache.org/bugzilla/show_bug.cgi?id=45014
>
>
> CONFIDENTIALITY NOTICE This message and any included attachments are from
Cerner Corporation and are intended only for the addressee. The information
contained in this message is confidential and may constitute inside or
non-public information under international, federal, or state securities
laws. Unauthorized forwarding, printing, copying, distribution, or use of
such information is strictly prohibited and may be unlawful. If you are not
the addressee, please promptly delete this message and notify the sender of
the delivery error by e-mail or you may call Cerner's corporate offices in
Kansas City, Missouri, U.S.A at (+1) (816)221-1024.