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Posted to users@tomcat.apache.org by Peter Coppens <pc...@gmail.com> on 2007/10/28 10:41:45 UTC
Where is the POSTED data on login redirect?
Hello,
When a user posts data to a servlet after the session has expired (timeout)
tomcat automatically redirects to my login page. After successful login,
tomcat will redirect to the original request.
I am looking for way to access the originally posted data when it 'arrives'
in the servlet (after tomcat has redirected after the login).
Any guidance or pointers would be most warmly welcomed!
Thanks,
Peter
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Re: Where is the POSTED data on login redirect?
Posted by Peter Coppens <pc...@gmail.com>.
Thanks again for the quick replies.
It proved to be a getParameter in some logging code that messed up the
subsequent read. Weird the problem only shows up with a 'savedrequest' and
not with a normal request, but I guess the behaviour is to be expected.
Peter
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Re: Where is the POSTED data on login redirect?
Posted by David Delbecq <de...@oma.be>.
Unfortunately for you, i see nothing in specs about keeping POST
information during a form based login. So this feature may be tomcat
specific only. It may be also that the tomcat connector keep POST datas
only for "application/x-www-form-urlencoded" and makes it available
using getParameter()... Also, if anything before Post saving do call
getParameters(), the Reader is not available anymore because it has been
consumed by call to getParameters() (used for Post content parsing).
So you should probably consider this impossible to do :) OOr ask the
tomcat devs about this ^ ^
Peter Coppens schreef:
> Thanks David, that helps.
>
> Something seem to go wrong for me though. I guess my question was not
> sufficiently exact.
>
> The data is posted as "application/xml" and the servlet consumes it using
> request.getReader().read(...) The thing is that when the authentication
> process completes and redirects the original post to the servlet, the
> request.getReader().read(...) immediately returns -1. The data is in the
> buffer alright, but the pointer into the buffer is not positioned at the
> beginning. I have tried adding a reset but that does not seem to help.
>
> Any thoughts?
>
> Thanks!
>
> Peter
>
>
> David Delbecq-2 wrote:
>
>> They are automatically saved by form authentification system and
>> restored after form authentification. Your servlet won't be able to make
>> the difference between a direct hit and a hit with post restored after
>> form authentification.
>>
>> Please note, however, that the size of post request saved by tomcat is
>> limited by default to 4K. If it's bigger, your servlet will get an empty
>> request. To increase that size, go to Http connector configuration of
>> tomcat, and change or set the maxSavePostSize.
>>
>> http://tomcat.apache.org/tomcat-5.5-doc/config/http.html
>>
>> Regards,
>> Delbecq David
>>
>> Op zondag 28-10-2007 om 02:41 uur [tijdzone -0700], schreef Peter
>> Coppens:
>>
>>> Hello,
>>>
>>> When a user posts data to a servlet after the session has expired
>>> (timeout)
>>> tomcat automatically redirects to my login page. After successful login,
>>> tomcat will redirect to the original request.
>>>
>>> I am looking for way to access the originally posted data when it
>>> 'arrives'
>>> in the servlet (after tomcat has redirected after the login).
>>>
>>> Any guidance or pointers would be most warmly welcomed!
>>>
>>> Thanks,
>>>
>>> Peter
>>>
>>>
>>>
>> ---------------------------------------------------------------------
>> To start a new topic, e-mail: users@tomcat.apache.org
>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
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>>
>>
>>
>>
>
>
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Re: Where is the POSTED data on login redirect?
Posted by Bill Barker <wb...@wilshire.com>.
"Peter Coppens" <pc...@gmail.com> wrote in message
news:13456772.post@talk.nabble.com...
>
> Thanks David, that helps.
>
> Something seem to go wrong for me though. I guess my question was not
> sufficiently exact.
>
> The data is posted as "application/xml" and the servlet consumes it using
> request.getReader().read(...) The thing is that when the authentication
> process completes and redirects the original post to the servlet, the
> request.getReader().read(...) immediately returns -1. The data is in the
> buffer alright, but the pointer into the buffer is not positioned at the
> beginning. I have tried adding a reset but that does not seem to help.
>
> Any thoughts?
>
>From a very quick look at the code, it looks like a Tomcat bug (Tomcat's not
sending 100-continue soon enough to save the post body). However, this
isn't the way I would expect to happen. It would help if you could sniff
the request and response headers for this case, and post what you find.
> Thanks!
>
> Peter
>
>
> David Delbecq-2 wrote:
>>
>> They are automatically saved by form authentification system and
>> restored after form authentification. Your servlet won't be able to make
>> the difference between a direct hit and a hit with post restored after
>> form authentification.
>>
>> Please note, however, that the size of post request saved by tomcat is
>> limited by default to 4K. If it's bigger, your servlet will get an empty
>> request. To increase that size, go to Http connector configuration of
>> tomcat, and change or set the maxSavePostSize.
>>
>> http://tomcat.apache.org/tomcat-5.5-doc/config/http.html
>>
>> Regards,
>> Delbecq David
>>
>> Op zondag 28-10-2007 om 02:41 uur [tijdzone -0700], schreef Peter
>> Coppens:
>>> Hello,
>>>
>>> When a user posts data to a servlet after the session has expired
>>> (timeout)
>>> tomcat automatically redirects to my login page. After successful login,
>>> tomcat will redirect to the original request.
>>>
>>> I am looking for way to access the originally posted data when it
>>> 'arrives'
>>> in the servlet (after tomcat has redirected after the login).
>>>
>>> Any guidance or pointers would be most warmly welcomed!
>>>
>>> Thanks,
>>>
>>> Peter
>>>
>>>
>>
>>
>> ---------------------------------------------------------------------
>> To start a new topic, e-mail: users@tomcat.apache.org
>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>> For additional commands, e-mail: users-help@tomcat.apache.org
>>
>>
>>
>
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> View this message in context:
> http://www.nabble.com/Where-is-the-POSTED-data-on-login-redirect--tf4706256.html#a13456772
> Sent from the Tomcat - User mailing list archive at Nabble.com.
>
>
> ---------------------------------------------------------------------
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Re: Where is the POSTED data on login redirect?
Posted by Peter Coppens <pc...@gmail.com>.
Thanks David, that helps.
Something seem to go wrong for me though. I guess my question was not
sufficiently exact.
The data is posted as "application/xml" and the servlet consumes it using
request.getReader().read(...) The thing is that when the authentication
process completes and redirects the original post to the servlet, the
request.getReader().read(...) immediately returns -1. The data is in the
buffer alright, but the pointer into the buffer is not positioned at the
beginning. I have tried adding a reset but that does not seem to help.
Any thoughts?
Thanks!
Peter
David Delbecq-2 wrote:
>
> They are automatically saved by form authentification system and
> restored after form authentification. Your servlet won't be able to make
> the difference between a direct hit and a hit with post restored after
> form authentification.
>
> Please note, however, that the size of post request saved by tomcat is
> limited by default to 4K. If it's bigger, your servlet will get an empty
> request. To increase that size, go to Http connector configuration of
> tomcat, and change or set the maxSavePostSize.
>
> http://tomcat.apache.org/tomcat-5.5-doc/config/http.html
>
> Regards,
> Delbecq David
>
> Op zondag 28-10-2007 om 02:41 uur [tijdzone -0700], schreef Peter
> Coppens:
>> Hello,
>>
>> When a user posts data to a servlet after the session has expired
>> (timeout)
>> tomcat automatically redirects to my login page. After successful login,
>> tomcat will redirect to the original request.
>>
>> I am looking for way to access the originally posted data when it
>> 'arrives'
>> in the servlet (after tomcat has redirected after the login).
>>
>> Any guidance or pointers would be most warmly welcomed!
>>
>> Thanks,
>>
>> Peter
>>
>>
>
>
> ---------------------------------------------------------------------
> To start a new topic, e-mail: users@tomcat.apache.org
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
>
>
>
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Re: Where is the POSTED data on login redirect?
Posted by "david delbecq (jakarta)" <de...@oma.be>.
They are automatically saved by form authentification system and
restored after form authentification. Your servlet won't be able to make
the difference between a direct hit and a hit with post restored after
form authentification.
Please note, however, that the size of post request saved by tomcat is
limited by default to 4K. If it's bigger, your servlet will get an empty
request. To increase that size, go to Http connector configuration of
tomcat, and change or set the maxSavePostSize.
http://tomcat.apache.org/tomcat-5.5-doc/config/http.html
Regards,
Delbecq David
Op zondag 28-10-2007 om 02:41 uur [tijdzone -0700], schreef Peter
Coppens:
> Hello,
>
> When a user posts data to a servlet after the session has expired (timeout)
> tomcat automatically redirects to my login page. After successful login,
> tomcat will redirect to the original request.
>
> I am looking for way to access the originally posted data when it 'arrives'
> in the servlet (after tomcat has redirected after the login).
>
> Any guidance or pointers would be most warmly welcomed!
>
> Thanks,
>
> Peter
>
>
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