RE: [wsrp-wsia] [I#115] URL rewriting of GET form actions

["Timothy N. Jones" <tim@crossweave.com>]

The problem for consumer-side rewriting is that if the consumer wishes to 
include any meta parameters in the rewritten URL (e.g., a portlet ID) then 
these must be included in the form itself as hidden inputs rather than in the 
action URL, because the browser is going to discard any parameters in the 
action URL.  Of course, the browser is also going to have to remember the 
original form action, which it could maintain in internal state or through an 
additional hidden input in the form.  I don't see how the consumer can avoid 
getting inside the form.

The problem for producer-side rewriting is that any parameters in the URL 
prefix supplied by the consumer to the producer (e.g., a portlet ID) are going 
to have to be extracted and inserted into the form as hidden inputs (due to the 
same browser issue of truncating parameters in the action URL).

Tim

Quoting Andre Kramer <andre.kramer@eu.citrix.com>:

> How about using just one hidden field with the value set equal to the URL
> (the example form action)? Then we can run the same algorithm (no HTML
> parsing)?
> 
> 	-- Andre
> 
> -----Original Message-----
> From: Gil Tayar [mailto:Gil.Tayar@webcollage.com]
> Sent: 17 October 2002 10:35
> To: wsrp-wsia@lists.oasis-open.org
> Subject: RE: [wsrp-wsia] [I#115] URL rewriting of GET form actions
> 
> 
> Carsten,
> 
> Although I do have an answer, let me note that Timothy Jones raised the
> issue.
> 
> My answer is that this concerns the spec regarding Consumer-side URL
> rewriting, as the spec defines  Consumer URL rewriting as a
> search-and-replace thing. Now if the wsia:rewrite occurs inside a <form
> method=GET action="wsia:rewrite..." then the Consumer (from what I
> understand, and I may be missing something) must understand the HTML and
> add
> the correct hidden fields to the form, meaning the Consumer MUST parse the
> HTML to do this.
> 
> Then again, I may be missing something,
> Gil
> 
> -----Original Message-----
> From: Carsten Leue [mailto:CLEUE@de.ibm.com]
> Sent: Thu, October 17, 2002 10:53
> To: Gil Tayar
> Cc: wsrp-wsia@lists.oasis-open.org
> Subject: Re: [wsrp-wsia] [I#115] URL rewriting of GET form actions
> 
> 
> Gil - as this problem is more or less a standard HTML problem I would have
> assumed that the parameters would have to be encoded as hidden input
> fields, so the resulting request URL contains the correct parameters. Do
> you think that we have to detail this aspect in the spec?
> 
> 
> Best regards
> Carsten Leue
> 
> -------
> Dr. Carsten Leue
> Dept.8288, IBM Laboratory Böblingen , Germany
> Tel.: +49-7031-16-4603, Fax: +49-7031-16-4401
> 
> 
> 
>                                                                            
>              Gil Tayar                                                     
>              <Gil.Tayar@webcol                                             
>              lage.com>                                                  To 
>                                        wsrp-wsia@lists.oasis-open.org      
>              10/17/2002 10:34                                           cc 
>              AM                                                            
>                                                                    Subject 
>                                        [wsrp-wsia] [I#115] URL rewriting   
>                                        of GET form actions                 
>                                                                            
>                                                                            
>                                                                            
>                                                                            
>                                                                            
>                                                                            
> 
> 
> 
> 
> Status: Active
> Topic: markup
> Class: Technical
> Title: URL rewriting of GET form actions
> Raised by: Timothy Jones
> Date Added: 17-Oct-2002
> Document Section: Core Spec v0.7 section 9.2
> Description:
> Web browsers generally discard query string parameters included in the
> action
> URL of forms that use the "GET" method.  In the example below the HTTP
> request
> to the server corresponding to the form submission will contain the
> "param2"
> 
> parameter but not the "param1" parameter.
> 
> <form method="get" action="http://...?param1=value1";>
>              <input name="param2" value="value2" type="hidden"/>
>              <input type="submit"/>
> </form>
> 
> If the URL rewriting method described in 9.2 implies that "meta" parameters
> 
> will be added to an URL, then this method will not work on GET form actions
> 
> (e.g., consider "param1" in the example above as a meta parameter).
> 
> Two solutions come to mind: (a) when rewriting a GET form action URL the
> meta
> parameters could be added as hidden inputs to the form, or (b) the spec
> could
> disallow GET forms in Producer generated markup.
> 
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