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From Robby Desmond <>
Subject Re: Issue with getting Apache to pass %ENV to sub-scripts on Apache2/mod_perl2
Date Thu, 29 Jul 2010 17:55:45 GMT
Hi all,

Sorry, but I have to amend this question. It appears that the ENV is
being passed just fine.

The issue is that Embperl is not parsing the form data when it is not
URL-encoded. (Some of the form data includes the book id of the files
being uploaded, and must be included for the "are you authorized" to
work correctly.)

Why would Embperl code not be properly interpreting mutlipart/form-data?


On 7/29/2010 10:04 AM, Robby Desmond wrote:
> Hi,
> When testing our server (RHEL 5, x86_64, Apache 2.2.3, mod_perl2,
> Embperl 2.3.0), we had no virtual hosts defined (testing was done on the
> raw hostname) and all of our forms seemed to work fine.
> Now that we have gone to a NamedVirtualHost configuration (because in
> production this server answers to many domains), we have run into an
> issue with some of our forms. For the most part, changing the encoding
> to "application/x-www-form-urlencoded" has solved our problems.
> However, the one form that *has* to be "multipart/form-data" now cannot
> seem to pull in the $ENV{REMOTE_USER} variable from Apache.
> It is a file-upload form, and goes through 3 stages, all run by calling
> back to itself and Execute-ing a different Embperl page based on which
> stage it is at.
> 1) Query user about *what* is being uploaded (add_files_1)
> 2) Gather file metadata (add_files_2)
> 3) Upload files (and inform user of successful upload when they finish)
> (add_files_3)
> The code looks like this:
> <form name="Add_Files" method="post" action="bv.add_files.epl"
> enctype="multipart/form-data" style="display: inline;">
>   [# execute the appropriate page #]
>   [$ if $fdat{Add_Files_3} $]
>     [- Execute('lower/bv.add_files_3.epl'); -]
>   [$ elsif $fdat{Add_Files_2} $]
>     [- Execute('lower/bv.add_files_2.epl'); -]
>   [$ else $] [# go to the starting page #]
>     [- Execute('lower/bv.add_files_1.epl'); -]
>   [$ endif $]
> </form>
> At the moment, if we change the encoding to x-www-form-urlencode, we can
> get through steps 1 and 2 without losing the $ENV{REMOTE_USER} variable.
> However, as you might expect, step 3 won't work that way.
> If any part of the form is set to "multipart/form-data", the Embperl
> scripts cannot read the ENV variable and give our "Not allowed to view
> this" page.
> Authentication exists in this set of directories, and ExecCGI has been
> added explicitly to these directories both in the main configuration and
> in the vhost.
> Additionally, the configuration directives for Embperl exist in both the
> main server configuration and in the vhost.
> Am I missing something about the transition to Apache2/mod_perl2 that
> alters what ENV information is passed from instance to instace of an
> Embperl page?
> Any ideas would be most helpful.
> -R

Robby Desmond
BiblioVault Operations Assistant
University of Chicago Press
ph: 773-834-2387
cell: 773-458-0959

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