[Catalyst] Extra characters inserted into PDF output

[Hu Hailin]

maybe the problem is caused by

1. some plugin involved, like some kind of content rewriting.
2. process in the end method, maybe you missed checking it.

On Wed, Dec 3, 2008 at 12:41 PM, Dr. Jennifer Nussbaum
<bg271828 at yahoo.com> wrote:
>
> --- On Tue, 12/2/08, Steve Sabljak <steve at sabljak.org> wrote:
>
>> From: Steve Sabljak <steve at sabljak.org>
>> Subject: Re: [Catalyst] Extra characters inserted into PDF output
>> To: "The elegant MVC web framework" <catalyst at lists.scsys.co.uk>
>> Date: Tuesday, December 2, 2008, 6:30 PM
>> On Wed, Dec 3, 2008 at 5:25 AM, Dr. Jennifer Nussbaum
>> <bg271828 at yahoo.com> wrote:
>> > --- On Tue, 12/2/08, Robin Berjon
>> <robin at berjon.com> wrote:
>> >
>> >> From: Robin Berjon <robin at berjon.com>
>> >> Subject: Re: [Catalyst] Extra characters inserted
>> into PDF output
>> >> To: bg271828 at yahoo.com, "The elegant MVC web
>> framework" <catalyst at lists.scsys.co.uk>
>> >> Date: Tuesday, December 2, 2008, 8:57 AM
>> >> On Dec 2, 2008, at 17:02 , Dr. Jennifer Nussbaum
>> wrote:
>> >> > My PDF files are being uploaded and saved in
>> the
>> >> database apparently correctly. Then what seems to
>> be
>> >> happening is that somewhere in the binary stream
>> of PDF,
>> >> there is a (random) sequence of "<!",
>> and
>> >> somewhere later there is a ">". And
>> something
>> >> is inserting a "--" before the
>> ">".
>> >> >
>> >> > My debugging statements show that Catalyst is
>> >> outputting the correct size of the file, which
>> suggests that
>> >> the insertion is happening elsewhere.
>> >>
>> >> The one thing you're not saying is under what
>> Catalyst
>> >> is running when it's producing that. Are you
>> running
>> >> FastCGI? Mod_perl? Stand-alone development server?
>> >
>> > This happens both under the standalone server and
>> under Apache/mod_perl.
>> >
>> >> If it happens in all of those then the bug is
>> probably in
>> >> your code (though after your debugging
>> statements).
>> >
>> > Ive shown all the code for the view, so you can see
>> anything that happens after the debugging....
>> >
>> >> If the
>> >> insertion is indeed happening outside that pretty
>> much just
>> >> leaves the Web server, or perhaps a proxy. Wild
>> stab in the
>> >> dark: do you happen to have SSI turned on?
>> >
>> > Yes, but only on the actual server. My dev box running
>> the standalone server isnt doing any SSI's.
>> >
>> > This is baffling.
>> >
>> > Jen
>> >
>>
>> So, if you use (literally)
>>
>> $c->res->output('XXXXX<!XXXXXX>XXXXX');
>>
>> does it output 'XXXXX<!XXXXX-->XXXXX'?
>> (you might want to change the content-type to text/plain
>> for this test
>> if testing with a browser)
>
> I dont know if this was a rhetorical question designed to show how stupid i am, or a real question, but the answer is "yes". Or, rather, if I change my output routine to
>
> $c->res->output('XXXXX<!XXXXXX>XXXXX'); $c->res->content_type('text/plain');
>
> Then what i get in my browser is:
>
> XXXXX<!--XXXXXX-->XXXXX
>
> Where does this leave me? WHY is this happening?
>
> Jen
>
>
>
>
>
>
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-- 
islue