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<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_Gdata
* @subpackage Gdata
* @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: HttpAdapterStreamingProxy.php 24593 2012-01-05 20:35:02Z matthew $
*/
/**
* @see Zend_Http_Client_Adapter_Proxy
*/
require_once 'Zend/Http/Client/Adapter/Proxy.php';
/**
* Extends the proxy HTTP adapter to handle streams instead of discrete body
* strings.
*
* @category Zend
* @package Zend_Gdata
* @subpackage Gdata
* @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Gdata_HttpAdapterStreamingProxy extends Zend_Http_Client_Adapter_Proxy
{
/**
* The amount read from a stream source at a time.
*
* @var integer
*/
const CHUNK_SIZE = 1024;
/**
* Send request to the proxy server with streaming support
*
* @param string $method
* @param Zend_Uri_Http $uri
* @param string $http_ver
* @param array $headers
* @param string $body
* @return string Request as string
*/
public function write($method, $uri, $http_ver = '1.1', $headers = array(), $body = '')
{
// If no proxy is set, throw an error
if (! $this->config['proxy_host']) {
require_once 'Zend/Http/Client/Adapter/Exception.php';
throw new Zend_Http_Client_Adapter_Exception('No proxy host set!');
}
// Make sure we're properly connected
if (! $this->socket) {
require_once 'Zend/Http/Client/Adapter/Exception.php';
throw new Zend_Http_Client_Adapter_Exception(
'Trying to write but we are not connected');
}
$host = $this->config['proxy_host'];
$port = $this->config['proxy_port'];
if ($this->connected_to[0] != $host || $this->connected_to[1] != $port) {
require_once 'Zend/Http/Client/Adapter/Exception.php';
throw new Zend_Http_Client_Adapter_Exception(
'Trying to write but we are connected to the wrong proxy ' .
'server');
}
// Add Proxy-Authorization header
if ($this->config['proxy_user'] && ! isset($headers['proxy-authorization'])) {
$headers['proxy-authorization'] = Zend_Http_Client::encodeAuthHeader(
$this->config['proxy_user'], $this->config['proxy_pass'], $this->config['proxy_auth']
);
}
// if we are proxying HTTPS, preform CONNECT handshake with the proxy
if ($uri->getScheme() == 'https' && (! $this->negotiated)) {
$this->connectHandshake($uri->getHost(), $uri->getPort(), $http_ver, $headers);
$this->negotiated = true;
}
// Save request method for later
$this->method = $method;
// Build request headers
$request = "{$method} {$uri->__toString()} HTTP/{$http_ver}\r\n";
// Add all headers to the request string
foreach ($headers as $k => $v) {
if (is_string($k)) $v = "$k: $v";
$request .= "$v\r\n";
}
$request .= "\r\n";
// Send the request headers
if (! @fwrite($this->socket, $request)) {
require_once 'Zend/Http/Client/Adapter/Exception.php';
throw new Zend_Http_Client_Adapter_Exception(
'Error writing request to proxy server');
}
//read from $body, write to socket
while ($body->hasData()) {
if (! @fwrite($this->socket, $body->read(self::CHUNK_SIZE))) {
require_once 'Zend/Http/Client/Adapter/Exception.php';
throw new Zend_Http_Client_Adapter_Exception(
'Error writing request to server');
}
}
return 'Large upload, request is not cached.';
}
}