I use Mason+CGI on some smaller sites where I don't need a full-blow
mod_perl install. This is also useful on my server where I run multiple
Mason sites off of one Apache.
I could not find a good solution to 404's w/ Mason+CGI in the documents so here
goes :
Problem:
1. When you assign all .html files to be handled by a .cgi that calls
mason, there are no 404's on components that don't exist.
Instead you get a 500 or 200 and a Mason error page.
2. Dynamic 404 messages handled by Mason under CGI
3. Getting different 404's for different autohandlers in the site
Solution:
- Check if file exists and send user to 404 page.
- Modify $r->status() in a 404 page.
- Symlink generic 404 page form every directory w/ different autohandler.
To the maintainer of HTML::Mason::CGIHandler, Could we add this to its
documentation?
Cheers,
-m
--------------------------------------------------------------------
CGI Handler : mason.pl
--------------------------------------------------------------------
#!/usr/bin/perl
use HTML::Mason::CGIHandler;
my $user = 'max';
my $comp = $ENV{'PATH_TRANSLATED'};
my $comp_root = "/home/$user/public_html";
my $data_dir = "/home/$user/mason_data";
my $e_404 = '404.html';
my $h = HTML::Mason::CGIHandler->new
(
data_dir => $data_dir,
comp_root => $comp_root,
);
# requested an unknown file
unless (-r $comp) {
# try dir-specific 404
$ENV{PATH_INFO} =~ s/[^.\/]+\.html$/$e_404/;
# Use /404.html if not found
$ENV{PATH_INFO} = "/$e_404" unless (-r "${comp_root}$ENV{PATH_INFO}");
}
$h->handle_request;
--------------------------------------------------------------------
--------------------------------------------------------------------
404.html
--------------------------------------------------------------------
<%method title>
404 Not Found \
</%method>
The page you have requested does not exist.
% $r->status(404);
--------------------------------------------------------------------
(the title method is specific to my autohandler)
--------------------------------------------------------------------
some_subdir/404.html
--------------------------------------------------------------------
% cd $comp_root/some_subdir
% ln -s ../404.html
-------------------------------------------------------------------------
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