Contributed patch for XForms filter and URL rewriting

>> separate deployment:
>>
>> http://forge.ow2.org/tracker/index.php?func=detail&aid=310890&group_id=168&atid=350207
>>
>> However Marwoto has contributed a patch which works around this by  
>> performing some custom URL rewriting in the filter. If this is of  
>> interest to anyone, this patched version of the filter is attached  
>> to this message.
>
> If the patch works, could it be then applied, temporarily, to the  
> source code of Orbeon Forms. Then it would be really easy for  
> everyone to take that feature in use just by downloading nightly  
> build versions of Orbeon Forms (orbeon.war).

>>> We still haven't managed to get to this annoying rewriting bug in
>>> separate deployment:
>>>
>>>
>>> http://forge.ow2.org/tracker/index.php?func=detail&aid=310890&group_id=168&atid=350207
>>>
>>> However Marwoto has contributed a patch which works around this by
>>> performing some custom URL rewriting in the filter. If this is of interest
>>> to anyone, this patched version of the filter is attached to this message.
>>
>> If the patch works, could it be then applied, temporarily, to the source
>> code of Orbeon Forms. Then it would be really easy for everyone to take that
>> feature in use just by downloading nightly build versions of Orbeon Forms
>> (orbeon.war).
>
> Decided to try out the patch as well. Unfortunately, it didn't fix the
> rewriting bug in separate deployment--at least I wasn't able to run my test
> web page successfully :( All I did was retrieved the source code, replaced
> the Java file and built and web application.
>
> Anyway, got the following error message on the first time trying to access
> my web page:
> "Fatal error: The prefix "f" for attribute "f:url-norewrite" associated with
> an element type "link" is not bound."
>
> After adding the needed XML Namespace declaration
> (xmlns:f="http://orbeon.org/oxf/xml/formatting") to my web page I run into
> the same old error message as before:
> "Got invalid return code while loading URI:
> http://localhost:8080/<mycontext>/orbeon/xml/my-external-instance.xml, 404"
>
> This occurs when I am trying to use an external XML instance on my web page:
> <xforms:instance id="my-external-instance"
> src="xml/my-external-instance.xml" />
>
>
> While trying out to fix/test the rewriting bug I ALMOST found a working
> solution. The only thing that doesn't work with my work around is session
> handling with cookies (works with URL rewriting). The session is lost/wrong
> after invalidating the session in my own Web application code. If I remember
> correctly, this was the issue back in the days before getting it fixed on
> Dec 18, 2007 or so (the version, 3.6.0.200712181809, of Orbeon Forms I am
> using at the moment works).
>
> Anyway, here is what I did (basically followed the XForms for Java Apps
> instructions):
> 1) Put the latest nightly build version of Orbeon Forms (orbeon.war) to
> Tomcat.
> 2) Used the OLD (instead of the current one) XForms Filter configurations in
> my Web applications' web.xml:
> -------- 8< ---------
>        <filter>
>                <filter-name>ops-xforms-filter</filter-name>
>
>  <filter-class>org.orbeon.oxf.servlet.OPSXFormsFilter</filter-class>
>                <init-param>
>                        <param-name>oxf.xforms.renderer.context</param-name>
>                        <param-value>/orbeon</param-value>
>                </init-param>
>        </filter>
>        <filter-mapping>
>                <filter-name>ops-xforms-filter</filter-name>
>                <url-pattern>*.xforms</url-pattern>
>        </filter-mapping>
>        <filter-mapping>
>                <filter-name>ops-xforms-filter</filter-name>
>                <url-pattern>/orbeon/*</url-pattern>
>        </filter-mapping>
> -------- 8< ---------
> 3) Added the context.xml file under the META-INF folder
> 4) Put the OLD (instead of the current one) orbeon-xforms-filter.jar file
> under the WEB-INF/lib folder of my web application.
>
> The fix was to use the OLD web.xml configurations and
> orbeon-xforms-filter.jar file. I know this ain't a bullet proof solution but
> nevertheless I was now able to use all the latest features Orbeon Forms has
> to offer in separate deployment!!!
>
> I tested my Web applications a bit with this newer Orbeon Forms and found a
> couple of problems:
> 1) Session lost/wrong (related to cookies) after invalidating session in my
> Web application's code. Works in the older version of OF I am using.
> 2) The digest function used to return alphabets in upper case, now it
> returns them in lower case.
>
>
> I guess this work around works 100% if the session handling with cookies bug
> will get fixed. I attached the orbeon-xforms-filter.jar file to this email
> if somebody wants to use it as well. Or, preferably, take a closer look at
> the source code and try to see what is the difference between the code in
> this JAR (needs to be decompiled) and the current code in CVS, which does
> not work properly.
>
> Hope this helps somebody and hoping to see a fix to the rewriting bug soon.
>
> Kind regards
>
>
> -Markku
>
>
>
>
>
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