<?php
/**
 * Part of Linksys WRT3G tools
 *
 * PHP version 5
 *
 * @category Tools
 * @package  linksys-wrt3g-tools
 * @author   Christian Weiske <cweiske@cweiske.de>
 * @license  AGPL v3
 * @link     http://cweiske.de/linksys-wrt3g-tools.htm
 */

/**
 * Observer to catch debugging data from the HTTP request.
 *
 * @category Tools
 * @package  linksys-wrt3g-tools
 * @author   Christian Weiske <cweiske@cweiske.de>
 * @license  AGPL v3
 * @link     http://cweiske.de/linksys-wrt3g-tools.htm
 */
class Wrt3g_RequestObserver implements SplObserver
{
    protected $wrt3g;
    protected static $supportedEvents = array(
        'connect', 'sentHeaders', 'receivedBody', 'disconnect'
    );

    /**
     * Create new instance
     *
     * @param Wrt3g $wrt3g Logger
     */ 
    public function __construct(Wrt3g $wrt3g)
    {
        $this->wrt3g = $wrt3g;
    }


    /**
     * Receive notification from HTTP_Request2
     *
     * @param SplSubject $subject The request object
     *
     * @return void
     */
    public function update(SplSubject $subject)
    {
        $event = $subject->getLastEvent();
        if (!in_array($event['name'], self::$supportedEvents)) {
            return;
        }

        if ($event['name'] == 'receivedBody') {
            $resp = $event['data'];
            $event['data']
                = $resp->getStatus() . ' ' . $resp->getReasonPhrase() . "\n"
                . 'Header: ' . var_export($resp->getHeader(), true)
                . $resp->getBody() . "\n----\n";
        }

        $this->wrt3g->log(
            'event: ' . $event['name'] . ', '
            . 'data: ' . $event['data'],
            3
        );
    }
}


?>