Re: GIF contents not "coming out"

[Stas Bekman <st...@stason.org>]

Hi Chris,

Finally I've got a chance to analyze your problem.

> The "GIF" isn't actually a GIF at all - it was the "favicon.ico" icon
> file - so my guess is that mod_perl is sneaking a peek at what comes
> next (expecting GIF89a or whatever) and doing something wrong when
> that 'aint it.  I realize I shouldn't be saying "image/gif" in this
> case, but then - mod_perl shouldn't be screwing up my headers just
> 'coz of that mistake?

mod_perl wasn't doing anything like that. The problem was in the contents of 
favicon.ico. .ico files seem to start with the sequence \000\000 and mod_perl 
2.0 had a bug dealing with parsing printed headers immediatelly followed by 
response body starting with '\0'. I've reduced your test to a one liner script:

print "Content-type: image/x-icon\n\n\000\000\001\000";

It's now fixed in the cvs.

> On a personal note - I think the whole mod_perl header system should
> have been omitted.  If a script wants to send the headers, it should
> be allowed to, without interference.  Making people learn an
> indeterminate number of new custom non-standard callbacks like
> "content_type()" and whatever the ones are for caching, p3p, cookies,
> accept, encoding, charsets, and so forth is silly - since everyone who
> knows they're needed already knows how to send them normally - hence
> the extra bunch of callback stuff just wastes everyone's time.  Just
> my $0.02...

Nobody prevents you from printing your own headers. It's just much slower. I 
just wrote a new docs section explaining the differences and nuances of 
headers generating:
http://perl.apache.org/docs/2.0/user/coding/coding.html#Generating_HTTP_Response_Headers

__________________________________________________________________
Stas Bekman            JAm_pH ------> Just Another mod_perl Hacker
http://stason.org/     mod_perl Guide ---> http://perl.apache.org
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