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Hello,

I have a simple protocol handler which writes a string to client
socket (source code below).

I would like to make that string configurable through httpd.conf, so
that I could say there:

  Listen 843
  <VirtualHost _default_:843>
       MyPolicyString            "<xml>blah</xml>"
       PerlModule                   SocketPolicy
       PerlProcessConnectionHandler SocketPolicy
  </VirtualHost>

I keep reading http://perl.apache.org/docs/2.0/user/ and other docs,
but just can't find how to do it. Do you use PerlPostConfigHandler for
that and how would I get that string in my
PerlProcessConnectionHandler?

I've noticed, that I could use a Apache2::Directive or a
$r->dir_config("MyPerlVar") but those seem to be slower and are
mod_perl-ish. I would like to use the mod_perl method corresponding to
the command_rec structure in C, where you would use an AP_INIT_TAKE1
(I guess... I'm not an expert here).

Thanks
Alex

package SocketPolicy;

use strict;
use warnings FATAL => 'all';
use APR::Const(-compile => 'SO_NONBLOCK');
use APR::Socket();
use Apache2::ServerRec();
use Apache2::Connection();
use Apache2::Const(-compile => qw(OK DECLINED));

use constant POLICY =>
qq{<?xml version="1.0"?>
<!DOCTYPE cross-domain-policy SYSTEM
"http://www.adobe.com/xml/dtds/cross-domain-policy.dtd">
<cross-domain-policy>
<allow-access-from domain="*" to-ports="8080"/>
</cross-domain-policy>
\0};

sub handler {
        my $conn   = shift;
        my $socket = $conn->client_socket();
        my $offset = 0;

        # set the socket to the blocking mode
        $socket->opt_set(APR::Const::SO_NONBLOCK => 0);

        # XXX use the policy string coming from httpd.conf XXX

        do {
                my $nbytes = $socket->send(substr(POLICY, $offset),
length(POLICY) - $offset);
                # client connection closed or interrupted
                return Apache2::Const::DECLINED unless $nbytes;
                $offset += $nbytes;
        } while ($offset < length(POLICY));

        my $slog = $conn->base_server()->log();
        $slog->warn('served socket policy to: ', $conn->remote_ip());
        return Apache2::Const::OK;
}

1;