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<?php

/**

* jQuery Server Plugin

*

* Backend class using phpQuery.

*

* @version 0.5.1

* @author Tobiasz Cudnik <tobiasz.cudnik/gmail.com>

* @link http://code.google.com/p/phpquery/wiki/jQueryServer

* @link http://code.google.com/p/phpquery/

* @todo local files support (safe...)

* @todo respond with proper HTTP code

* @todo persistant thread support (with timeout...)

* @todo 2.0: JSON RPC - Zend_Json_Server

* @todo 2.0: XML RPC ?

*/

class jQueryServer {

public $config = array(

'allowedRefererHosts' => array('.'),

'refererMustMatch' => true,

);

public $calls = null;

public $options = null;

public $allowedHosts = null;

function __construct($data) {

$pq = null;

include_once(dirname(__FILE__).'/../phpQuery/phpQuery.php');

if (file_exists(dirname(__FILE__).'/jQueryServer.config.php')) {

include_once(dirname(__FILE__).'/jQueryServer.config.php');

if ($jQueryServerConfig)

$this->config = array_merge_recursive($this->config, $jQueryServerConfig);

}

if ($this->config['refererMustMatch']) {

foreach($this->config['allowedRefererHosts'] as $i => $host)

if ($host == '.')

$this->config['allowedRefererHosts'][$i] = $_SERVER['HTTP_HOST'];

$referer = parse_url($_SERVER['HTTP_REFERER'], PHP_URL_HOST);

$authorized = $referer

&& in_array($referer, $this->config['allowedRefererHosts']);

if (! $authorized) {

throw new Exception("Host '{$_SERVER['HTTP_REFERER']}' not authorized to make requests.");

return;

}

}

// phpQueryClass::$debug = true;

// if (! function_exists('json_decode')) {

// include_once(dirname(__FILE__).'/JSON.php');

// $this->json = new Services_JSON(SERVICES_JSON_LOOSE_TYPE);

// }

// $data = $this->jsonDecode($data);

$data = phpQuery::parseJSON($data);

// load document (required for first $data element)

if (is_array($data[0]) && isset($data[0]['url'])) {

$this->options = $data[0];

$ajax = $this->options;

$this->calls = array_slice($data, 1);

$ajax['success'] = array($this, 'success');

phpQuery::ajax($ajax);

} else {

throw new Exception("URL needed to download content");

break;

}

}

public function success($response) {

$pq = phpQuery::newDocument($response);

foreach($this->calls as $k => $r) {

// check if method exists

if (! method_exists(get_class($pq), $r['method'])) {

throw new Exception("Method '{$r['method']}' not implemented in phpQuery, sorry...");

// execute method

} else {

$pq = call_user_func_array(

array($pq, $r['method']),

$r['arguments']

);

}

}

if (! isset($this->options['dataType']))

$this->options['dataType'] = '';

switch(strtolower($this->options['dataType'])) {

case 'json':

if ( $pq instanceof PHPQUERYOBJECT ) {

$results = array();

foreach($pq as $node)

$results[] = pq($node)->htmlOuter();

print phpQuery::toJSON($results);

} else {

print phpQuery::toJSON($pq);

}

break;

default:

print $pq;

}

// output results

}

// public function jsonEncode($data) {

// return function_exists('json_encode')

// ? json_encode($data)

// : $this->json->encode($data);

// }

// public function jsonDecode($data) {

// return function_exists('json_decode')

// ? json_decode($data, true)

// : $this->json->decode($data);

// }

}

new jQueryServer($_POST['data']);

?>