是否可以用PHP编写Apache协议处理程序?

我想知道是否以及如何可以用PHP为Apache 2编写一个自定义的“协议处理程序”(在自定义端口监听)?

在C和mod_perl中,您可以编写所谓的“协议处理程序”,它拦截早期的Apache阶段(在客户端套接字连接被accept()之后,但在向其写入任何内容之前),并可以处理 FTP 或 SMTP

例如,我有一个简单的mod_perl处理程序,我想将它移植到PHP(比较内存使用情况-因为我的mod_perl-handler需要每个孩子有2000万个内存)。我的处理程序侦听端口843并将字符串策略写入客户端套接字:

package SocketPolicy;

# Run: semanage port -a -t http_port_t -p tcp 843
# And add following lines to the httpd.conf
# Listen 843
# <VirtualHost _default_:843>
#       PerlModule                   SocketPolicy
#       PerlProcessConnectionHandler SocketPolicy
# </VirtualHost>

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);

        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;

谢谢, 亚历克斯