Persistent Magento

persistent.php

<?php

// put in magento root folder
// run via
// rm /tmp/magento; php persistent.php
// output is in /tmp/magento.log

function plog($msg) {
    file_put_contents('/tmp/magento.log', date('H:i:s') . ': ' . $msg . PHP_EOL, FILE_APPEND);
}

error_reporting(E_ALL | E_STRICT);

define('MAGENTO_ROOT', getcwd());

$mageFilename = MAGENTO_ROOT . '/app/Mage.php';

require_once $mageFilename;

Mage::setIsDeveloperMode(true);

umask(0);

/* Store or website code */
$mageRunCode = isset($_SERVER['MAGE_RUN_CODE']) ? $_SERVER['MAGE_RUN_CODE'] : '';

/* Run store or run website */
$mageRunType = isset($_SERVER['MAGE_RUN_TYPE']) ? $_SERVER['MAGE_RUN_TYPE'] : 'store';

#Mage::run($mageRunCode, $mageRunType);

#/** @var Mage_Core_Model_App $mageApp */
Mage::init($mageRunCode, $mageRunType);
$mageApp = Mage::app();
$mageApp->getFrontController();


class Persistent_Response extends Mage_Core_Controller_Response_Http
{
    public function sendHeaders()
    {
        plog(__METHOD__);
        return $this;
    }

    public function sendResponse()
    {
        plog(__METHOD__);
        $this->outputBody();
        return $this;
    }

    public function setRedirect($url, $code = 302)
    {
        mageDebugBacktrace(false, false);
        plog(__METHOD__ . '::' . $url);
        return $this;
    }
}

$mageApp->setResponse(new Persistent_Response());

$socket = stream_socket_server('unix:///tmp/magento');
plog('Server running');
while ($client = stream_socket_accept($socket, 3600)) {
    $len = unpack('I', fread($client, 4));
    $len = $len[1];
    $url = fread($client, $len);
    plog("Got msg $len: $url");

    if (pcntl_fork() == 0) {
        Mage::getSingleton('core/resource')->getConnection('core_write')->closeConnection();

        $request = new Mage_Core_Controller_Request_Http($url);
        $request->setPathInfo();
        $mageApp->setRequest($request);

        ob_start();
        $mageApp->getFrontController()->dispatch();
        $result = ob_get_contents();
        ob_end_clean();

        fwrite($client, pack('I', strlen($result)));
        fwrite($client, $result);

        fclose($client);
    }
}

test.php

<?php

// put in magento root folder
// access this file via browser instead of magento index.php

$client = stream_socket_client('unix:///tmp/magento');
$url = 'http://mage.local/magento-mirror/';
fwrite($client, pack('I', strlen($url)));  // sending strlen
fwrite($client, $url);  // sending url

$len = unpack('I', fread($client, 4));
$len = $len[1];
echo fread($client, $len);