339 lines
12 KiB
PHP
339 lines
12 KiB
PHP
|
<?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_Http
|
||
|
|
* @subpackage Client_Adapter
|
||
|
|
* @version $Id: Socket.php 12105 2008-10-23 23:38:55Z shahar $
|
||
|
|
* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
|
||
|
|
* @license http://framework.zend.com/license/new-bsd New BSD License
|
||
|
|
*/
|
||
|
|
|
||
|
|
require_once 'Zend/Uri/Http.php';
|
||
|
|
require_once 'Zend/Http/Client/Adapter/Interface.php';
|
||
|
|
|
||
|
|
/**
|
||
|
|
* A sockets based (stream_socket_client) adapter class for Zend_Http_Client. Can be used
|
||
|
|
* on almost every PHP environment, and does not require any special extensions.
|
||
|
|
*
|
||
|
|
* @category Zend
|
||
|
|
* @package Zend_Http
|
||
|
|
* @subpackage Client_Adapter
|
||
|
|
* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
|
||
|
|
* @license http://framework.zend.com/license/new-bsd New BSD License
|
||
|
|
*/
|
||
|
|
class Zend_Http_Client_Adapter_Socket implements Zend_Http_Client_Adapter_Interface
|
||
|
|
{
|
||
|
|
/**
|
||
|
|
* The socket for server connection
|
||
|
|
*
|
||
|
|
* @var resource|null
|
||
|
|
*/
|
||
|
|
protected $socket = null;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* What host/port are we connected to?
|
||
|
|
*
|
||
|
|
* @var array
|
||
|
|
*/
|
||
|
|
protected $connected_to = array(null, null);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Parameters array
|
||
|
|
*
|
||
|
|
* @var array
|
||
|
|
*/
|
||
|
|
protected $config = array(
|
||
|
|
'persistent' => false,
|
||
|
|
'ssltransport' => 'ssl',
|
||
|
|
'sslcert' => null,
|
||
|
|
'sslpassphrase' => null
|
||
|
|
);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Request method - will be set by write() and might be used by read()
|
||
|
|
*
|
||
|
|
* @var string
|
||
|
|
*/
|
||
|
|
protected $method = null;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Adapter constructor, currently empty. Config is set using setConfig()
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
public function __construct()
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set the configuration array for the adapter
|
||
|
|
*
|
||
|
|
* @param array $config
|
||
|
|
*/
|
||
|
|
public function setConfig($config = array())
|
||
|
|
{
|
||
|
|
if (! is_array($config)) {
|
||
|
|
require_once 'Zend/Http/Client/Adapter/Exception.php';
|
||
|
|
throw new Zend_Http_Client_Adapter_Exception(
|
||
|
|
'$concig expects an array, ' . gettype($config) . ' recieved.');
|
||
|
|
}
|
||
|
|
|
||
|
|
foreach ($config as $k => $v) {
|
||
|
|
$this->config[strtolower($k)] = $v;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Connect to the remote server
|
||
|
|
*
|
||
|
|
* @param string $host
|
||
|
|
* @param int $port
|
||
|
|
* @param boolean $secure
|
||
|
|
* @param int $timeout
|
||
|
|
*/
|
||
|
|
public function connect($host, $port = 80, $secure = false)
|
||
|
|
{
|
||
|
|
// If the URI should be accessed via SSL, prepend the Hostname with ssl://
|
||
|
|
$host = ($secure ? $this->config['ssltransport'] : 'tcp') . '://' . $host;
|
||
|
|
|
||
|
|
// If we are connected to the wrong host, disconnect first
|
||
|
|
if (($this->connected_to[0] != $host || $this->connected_to[1] != $port)) {
|
||
|
|
if (is_resource($this->socket)) $this->close();
|
||
|
|
}
|
||
|
|
|
||
|
|
// Now, if we are not connected, connect
|
||
|
|
if (! is_resource($this->socket) || ! $this->config['keepalive']) {
|
||
|
|
$context = stream_context_create();
|
||
|
|
if ($secure) {
|
||
|
|
if ($this->config['sslcert'] !== null) {
|
||
|
|
if (! stream_context_set_option($context, 'ssl', 'local_cert',
|
||
|
|
$this->config['sslcert'])) {
|
||
|
|
require_once 'Zend/Http/Client/Adapter/Exception.php';
|
||
|
|
throw new Zend_Http_Client_Adapter_Exception('Unable to set sslcert option');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ($this->config['sslpassphrase'] !== null) {
|
||
|
|
if (! stream_context_set_option($context, 'ssl', 'passphrase',
|
||
|
|
$this->config['sslpassphrase'])) {
|
||
|
|
require_once 'Zend/Http/Client/Adapter/Exception.php';
|
||
|
|
throw new Zend_Http_Client_Adapter_Exception('Unable to set sslpassphrase option');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$flags = STREAM_CLIENT_CONNECT;
|
||
|
|
if ($this->config['persistent']) $flags |= STREAM_CLIENT_PERSISTENT;
|
||
|
|
|
||
|
|
$this->socket = @stream_socket_client($host . ':' . $port,
|
||
|
|
$errno,
|
||
|
|
$errstr,
|
||
|
|
(int) $this->config['timeout'],
|
||
|
|
$flags,
|
||
|
|
$context);
|
||
|
|
if (! $this->socket) {
|
||
|
|
$this->close();
|
||
|
|
require_once 'Zend/Http/Client/Adapter/Exception.php';
|
||
|
|
throw new Zend_Http_Client_Adapter_Exception(
|
||
|
|
'Unable to Connect to ' . $host . ':' . $port . '. Error #' . $errno . ': ' . $errstr);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Set the stream timeout
|
||
|
|
if (! stream_set_timeout($this->socket, (int) $this->config['timeout'])) {
|
||
|
|
require_once 'Zend/Http/Client/Adapter/Exception.php';
|
||
|
|
throw new Zend_Http_Client_Adapter_Exception('Unable to set the connection timeout');
|
||
|
|
}
|
||
|
|
|
||
|
|
// Update connected_to
|
||
|
|
$this->connected_to = array($host, $port);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Send request to the remote server
|
||
|
|
*
|
||
|
|
* @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 = '')
|
||
|
|
{
|
||
|
|
// 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 = $uri->getHost();
|
||
|
|
$host = (strtolower($uri->getScheme()) == 'https' ? $this->config['ssltransport'] : 'tcp') . '://' . $host;
|
||
|
|
if ($this->connected_to[0] != $host || $this->connected_to[1] != $uri->getPort()) {
|
||
|
|
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 host');
|
||
|
|
}
|
||
|
|
|
||
|
|
// Save request method for later
|
||
|
|
$this->method = $method;
|
||
|
|
|
||
|
|
// Build request headers
|
||
|
|
$path = $uri->getPath();
|
||
|
|
if ($uri->getQuery()) $path .= '?' . $uri->getQuery();
|
||
|
|
$request = "{$method} {$path} HTTP/{$http_ver}\r\n";
|
||
|
|
foreach ($headers as $k => $v) {
|
||
|
|
if (is_string($k)) $v = ucfirst($k) . ": $v";
|
||
|
|
$request .= "$v\r\n";
|
||
|
|
}
|
||
|
|
|
||
|
|
// Add the request body
|
||
|
|
$request .= "\r\n" . $body;
|
||
|
|
|
||
|
|
// Send the request
|
||
|
|
if (! @fwrite($this->socket, $request)) {
|
||
|
|
require_once 'Zend/Http/Client/Adapter/Exception.php';
|
||
|
|
throw new Zend_Http_Client_Adapter_Exception('Error writing request to server');
|
||
|
|
}
|
||
|
|
|
||
|
|
return $request;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Read response from server
|
||
|
|
*
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public function read()
|
||
|
|
{
|
||
|
|
// First, read headers only
|
||
|
|
$response = '';
|
||
|
|
$gotStatus = false;
|
||
|
|
while (($line = @fgets($this->socket)) !== false) {
|
||
|
|
$gotStatus = $gotStatus || (strpos($line, 'HTTP') !== false);
|
||
|
|
if ($gotStatus) {
|
||
|
|
$response .= $line;
|
||
|
|
if (rtrim($line) === '') break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$statusCode = Zend_Http_Response::extractCode($response);
|
||
|
|
|
||
|
|
// Handle 100 and 101 responses internally by restarting the read again
|
||
|
|
if ($statusCode == 100 || $statusCode == 101) return $this->read();
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Responses to HEAD requests and 204 or 304 responses are not expected
|
||
|
|
* to have a body - stop reading here
|
||
|
|
*/
|
||
|
|
if ($statusCode == 304 || $statusCode == 204 ||
|
||
|
|
$this->method == Zend_Http_Client::HEAD) return $response;
|
||
|
|
|
||
|
|
// Check headers to see what kind of connection / transfer encoding we have
|
||
|
|
$headers = Zend_Http_Response::extractHeaders($response);
|
||
|
|
|
||
|
|
// If we got a 'transfer-encoding: chunked' header
|
||
|
|
if (isset($headers['transfer-encoding'])) {
|
||
|
|
if ($headers['transfer-encoding'] == 'chunked') {
|
||
|
|
do {
|
||
|
|
$line = @fgets($this->socket);
|
||
|
|
$chunk = $line;
|
||
|
|
|
||
|
|
// Figure out the next chunk size
|
||
|
|
$chunksize = trim($line);
|
||
|
|
if (! ctype_xdigit($chunksize)) {
|
||
|
|
$this->close();
|
||
|
|
require_once 'Zend/Http/Client/Adapter/Exception.php';
|
||
|
|
throw new Zend_Http_Client_Adapter_Exception('Invalid chunk size "' .
|
||
|
|
$chunksize . '" unable to read chunked body');
|
||
|
|
}
|
||
|
|
|
||
|
|
// Convert the hexadecimal value to plain integer
|
||
|
|
$chunksize = hexdec($chunksize);
|
||
|
|
|
||
|
|
// Read chunk
|
||
|
|
$left_to_read = $chunksize;
|
||
|
|
while ($left_to_read > 0) {
|
||
|
|
$line = @fread($this->socket, $left_to_read);
|
||
|
|
$chunk .= $line;
|
||
|
|
$left_to_read -= strlen($line);
|
||
|
|
|
||
|
|
// Break if the connection ended prematurely
|
||
|
|
if (feof($this->socket)) break;
|
||
|
|
}
|
||
|
|
|
||
|
|
$chunk .= @fgets($this->socket);
|
||
|
|
$response .= $chunk;
|
||
|
|
} while ($chunksize > 0);
|
||
|
|
|
||
|
|
} else {
|
||
|
|
throw new Zend_Http_Client_Adapter_Exception('Cannot handle "' .
|
||
|
|
$headers['transfer-encoding'] . '" transfer encoding');
|
||
|
|
}
|
||
|
|
|
||
|
|
// Else, if we got the content-length header, read this number of bytes
|
||
|
|
} elseif (isset($headers['content-length'])) {
|
||
|
|
$left_to_read = $headers['content-length'];
|
||
|
|
$chunk = '';
|
||
|
|
while ($left_to_read > 0) {
|
||
|
|
$chunk = @fread($this->socket, $left_to_read);
|
||
|
|
$left_to_read -= strlen($chunk);
|
||
|
|
$response .= $chunk;
|
||
|
|
|
||
|
|
// Break if the connection ended prematurely
|
||
|
|
if (feof($this->socket)) break;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Fallback: just read the response until EOF
|
||
|
|
} else {
|
||
|
|
while (($buff = @fread($this->socket, 8192)) !== false) {
|
||
|
|
$response .= $buff;
|
||
|
|
if (feof($this->socket)) break;
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->close();
|
||
|
|
}
|
||
|
|
|
||
|
|
// Close the connection if requested to do so by the server
|
||
|
|
if (isset($headers['connection']) && $headers['connection'] == 'close') {
|
||
|
|
$this->close();
|
||
|
|
}
|
||
|
|
|
||
|
|
return $response;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Close the connection to the server
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
public function close()
|
||
|
|
{
|
||
|
|
if (is_resource($this->socket)) @fclose($this->socket);
|
||
|
|
$this->socket = null;
|
||
|
|
$this->connected_to = array(null, null);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Destructor: make sure the socket is disconnected
|
||
|
|
*
|
||
|
|
* If we are in persistent TCP mode, will not close the connection
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
public function __destruct()
|
||
|
|
{
|
||
|
|
if (! $this->config['persistent']) {
|
||
|
|
if ($this->socket) $this->close();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|