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khosb/includes/kohana/system/classes/Kohana/Request/Client/Stream.php

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2012-11-09 12:18:50 +00:00
<?php defined('SYSPATH') OR die('No direct script access.');
/**
* [Request_Client_External] Stream driver performs external requests using php
* sockets. To use this driver, ensure the following is completed
* before executing an external request- ideally in the application bootstrap.
*
* @example
*
* // In application bootstrap
* Request_Client_External::$client = 'Request_Client_Stream';
*
* @package Kohana
* @category Base
* @author Kohana Team
* @copyright (c) 2008-2012 Kohana Team
* @license http://kohanaframework.org/license
* @uses [PHP Streams](http://php.net/manual/en/book.stream.php)
*/
class Kohana_Request_Client_Stream extends Request_Client_External {
/**
* Sends the HTTP message [Request] to a remote server and processes
* the response.
*
* @param Request $request request to send
* @param Response $request response to send
* @return Response
* @uses [PHP cURL](http://php.net/manual/en/book.curl.php)
*/
public function _send_message(Request $request, Response $response)
{
// Calculate stream mode
$mode = ($request->method() === HTTP_Request::GET) ? 'r' : 'r+';
// Process cookies
if ($cookies = $request->cookie())
{
$request->headers('cookie', http_build_query($cookies, NULL, '; '));
}
// Get the message body
$body = $request->body();
if (is_resource($body))
{
$body = stream_get_contents($body);
}
// Set the content length
$request->headers('content-length', (string) strlen($body));
list($protocol) = explode('/', $request->protocol());
// Create the context
$options = array(
strtolower($protocol) => array(
'method' => $request->method(),
'header' => (string) $request->headers(),
'content' => $body
)
);
// Create the context stream
$context = stream_context_create($options);
stream_context_set_option($context, $this->_options);
$uri = $request->uri();
if ($query = $request->query())
{
$uri .= '?'.http_build_query($query, NULL, '&');
}
$stream = fopen($uri, $mode, FALSE, $context);
$meta_data = stream_get_meta_data($stream);
// Get the HTTP response code
$http_response = array_shift($meta_data['wrapper_data']);
if (preg_match_all('/(\w+\/\d\.\d) (\d{3})/', $http_response, $matches) !== FALSE)
{
$protocol = $matches[1][0];
$status = (int) $matches[2][0];
}
else
{
$protocol = NULL;
$status = NULL;
}
// Get any exisiting response headers
$response_header = $response->headers();
// Process headers
array_map(array($response_header, 'parse_header_string'), array(), $meta_data['wrapper_data']);
$response->status($status)
->protocol($protocol)
->body(stream_get_contents($stream));
// Close the stream after use
fclose($stream);
return $response;
}
} // End Kohana_Request_Client_Stream