fwiw, you might also want to think about a "store and serve" system,
depending on how much volume you'll be handling or how much processing
it takes to produce each pdf.
we use a similar system for dynamic images using a PerlHandler.
basically, the first time an image is requested, we generate it and save
it to a file. from then on we just serve the file. but at the mason
level you could use something like this:
<%init>
my $file_name = ($r->filename =~ /.*?\/pdfs\/(.*?)\.pdf/gi);
generate_and_save_pdf($file_name);
my $fh;
open ( $fh, $file_name );
$m->clear_buffer();
$r->content_type ( 'application/pdf' );
$r->send_http_header;
$r->send_fd ( $fh );
close ( $fh);
return;
</%init>
and since this code is in the dhandler, the ( ! -e $file_name ) is a given.
i'm assuming from your earlier code that you already have a scheme for
encoding the pertinent information into the url/file name. one thing i
like better about this approach is that it uses an apache internal
instead of having to read and handle binary data in a scalar, which i
think can be troublesome because of charsets and input/output record
seperators.
and remember, watch the whitespace.
J Cook wrote:
> I found the problem, it was in my session_handler.pl, which is pretty
> much a stock version that I got off of masonhq.com for use with
> MasonX::Request::WithApacheSession. I commented out:
>
> # return -1 if $r->content_type && $r->content_type !~ m|^text/|io;
>
> out of my handler sub. Now it works fine but I'm wondering if this is
> the best way to handle it - it seems this line is here to restrict my
> mason app from serving anything other than a text/(html|plain) document.
> Will commenting this out cause any problems?
>
> Justin
> Sherrard Burton wrote:
>
>>john is right about the whitespace, but a 404 would have nothing to do
>>with whether the content is generated on the fly or served from
>>somewhere else on the filesystem.
>>
>>my guess is that something is not quite right with your mason setup. i
>>would break it down to a simple test case where you have a dhandler that
>>just dumps the apache headers or something simple like that, because it
>>doesn't look like your dhandler is actually getting called. you could
>>also create the same kind of test component in an actual file with a
>>.html or .pdf extension to see if they are served and parsed by mason.
>>
>>
>>
>>John Williams wrote:
>>
>>
>>>You have carriage returns before and after <% $output %> which could be
>>>messing up your pdf, and which would definitely mess up a gif or jpeg.
>>>
>>>Try putting the output inside the <%init> section and abort when you are
>>>done, like this:
>>>
>>><%init>
>>># ... generate pdf ...
>>>$r->content_type('application/pdf');
>>>$m->clear_buffer;
>>>$m->print($output);
>>>$m->abort;
>>></%init>
>>>
>>>~ John Williams
>>>
>>>
>>>On Tue, 11 Jul 2006, J Cook wrote:
>>>
>>>
>>>
>>>
>>>>Hi,
>>>>
>>>>I have a module that generates a pdf file on the fly that I want to use
>>>>with Mason. So I have a directory named /pdfs and a dhandler that looks
>>>>like:
>>>>
>>>><%init>
>>>>my $file_name = ($r->filename =~ /.*?\/pdfs\/(.*?)\.pdf/gi);
>>>>$r->content_type('application/pdf');
>>>>my $output = generate_pdf($file_name);
>>>></%init>
>>>>
>>>><% $output %>
>>>>
>>>><%flags>
>>>>inherit => undef
>>>></%flags>
>>>>
>>>>And I have in httpd.conf I have:
>>>>
>>>> <FilesMatch "(\.html|.pdf)$">
>>>> SetHandler perl-script
>>>> PerlHandler MyApp::Mason
>>>> </FilesMatch>
>>>>
>>>>First off the file_name must match a database row, so generate_pdf can
>>>>use that info to make the pdf. So when I call something like:
>>>>http://example.com/pdfs/12345.pdf
>>>>I want to see a pdf pop up, but all I get is a 404 'Not Found' error. On
>>>>masonhq.com in the FAQs I read:
>>>>
>>>>"Use mod_perl's $r->content_type function to set the appropriate MIME
>>>>type. This will allow you to output, for example, a GIF file, even if
>>>>your component is called dynamicImage.html."
>>>>
>>>>Does this mean that Mason cannot serve a pdf file that is generated on
>>>>the fly like this? Do I need to name it with a .html extension and hope
>>>>this doesn't break in certain browsers? Or is it something in my code
>>>>above that is wrong?
>>>>
>>>>Justin
>>>>
>>>>
>>>>-------------------------------------------------------------------------
>>>>Using Tomcat but need to do more? Need to support web services, security?
>>>>Get stuff done quickly with pre-integrated technology to make your job
>>>>easier
>>>>Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
>>>>http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
>>>>_______________________________________________
>>>>Mason-users mailing list
>>>>Mason-users@lists.sourceforge.net
>>>>https://lists.sourceforge.net/lists/listinfo/mason-users
>>>>
>>>>
>>>
>>>
>>>-------------------------------------------------------------------------
>>>Using Tomcat but need to do more? Need to support web services, security?
>>>Get stuff done quickly with pre-integrated technology to make your job easier
>>>Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
>>>http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
>>>_______________________________________________
>>>Mason-users mailing list
>>>Mason-users@lists.sourceforge.net
>>>https://lists.sourceforge.net/lists/listinfo/mason-users
>>>
>>
>>
>>-------------------------------------------------------------------------
>>Using Tomcat but need to do more? Need to support web services, security?
>>Get stuff done quickly with pre-integrated technology to make your job easier
>>Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
>>http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
>>_______________________________________________
>>Mason-users mailing list
>>Mason-users@lists.sourceforge.net
>>https://lists.sourceforge.net/lists/listinfo/mason-users
>>
>>
>
>
>
>
> -------------------------------------------------------------------------
> Using Tomcat but need to do more? Need to support web services, security?
> Get stuff done quickly with pre-integrated technology to make your job easier
> Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
> http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
> _______________________________________________
> Mason-users mailing list
> Mason-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/mason-users
-------------------------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
_______________________________________________
Mason-users mailing list
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