/wp-content/plugins/w3-total-cache/lib/Microsoft/Http/Client/Adapter/Curl.php
PHP | 501 lines | 262 code | 60 blank | 179 comment | 55 complexity | c947550fbdbd971459e954fe0ffa2f9c MD5 | raw file
- <?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 Microsoft
- * @package Microsoft_Http
- * @subpackage Client_Adapter
- * @version $Id: Curl.php 19238 2009-11-25 17:13:38Z bate $
- * @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
- * @license http://framework.zend.com/license/new-bsd New BSD License
- */
- if (!defined('W3TC')) {
- die();
- }
-
- /**
- * @see Microsoft_Uri_Http
- */
- require_once 'Microsoft/Uri/Http.php';
-
- /**
- * @see Microsoft_Http_Client_Adapter_Interface
- */
- require_once 'Microsoft/Http/Client/Adapter/Interface.php';
- /**
- * @see Microsoft_Http_Client_Adapter_Stream
- */
- require_once 'Microsoft/Http/Client/Adapter/Stream.php';
-
- /**
- * An adapter class for Microsoft_Http_Client based on the curl extension.
- * Curl requires libcurl. See for full requirements the PHP manual: http://php.net/curl
- *
- * @category Microsoft
- * @package Microsoft_Http
- * @subpackage Client_Adapter
- * @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
- * @license http://framework.zend.com/license/new-bsd New BSD License
- */
- class Microsoft_Http_Client_Adapter_Curl implements Microsoft_Http_Client_Adapter_Interface, Microsoft_Http_Client_Adapter_Stream
- {
- /**
- * Parameters array
- *
- * @var array
- */
- protected $_config = array();
-
- /**
- * What host/port are we connected to?
- *
- * @var array
- */
- protected $_connected_to = array(null, null);
-
- /**
- * The curl session handle
- *
- * @var resource|null
- */
- protected $_curl = null;
-
- /**
- * List of cURL options that should never be overwritten
- *
- * @var array
- */
- protected $_invalidOverwritableCurlOptions = array(
- CURLOPT_HTTPGET,
- CURLOPT_POST,
- CURLOPT_PUT,
- CURLOPT_CUSTOMREQUEST,
- CURLOPT_HEADER,
- CURLOPT_RETURNTRANSFER,
- CURLOPT_HTTPHEADER,
- CURLOPT_POSTFIELDS,
- CURLOPT_INFILE,
- CURLOPT_INFILESIZE,
- CURLOPT_PORT,
- CURLOPT_MAXREDIRS,
- CURLOPT_CONNECTTIMEOUT,
- CURL_HTTP_VERSION_1_1,
- CURL_HTTP_VERSION_1_0,
- );
-
- /**
- * Response gotten from server
- *
- * @var string
- */
- protected $_response = null;
-
- /**
- * Stream for storing output
- *
- * @var resource
- */
- protected $out_stream;
-
- /**
- * Adapter constructor
- *
- * Config is set using setConfig()
- *
- * @return void
- * @throws Microsoft_Http_Client_Adapter_Exception
- */
- public function __construct()
- {
- if (!extension_loaded('curl')) {
- require_once 'Microsoft/Http/Client/Adapter/Exception.php';
- throw new Microsoft_Http_Client_Adapter_Exception('cURL extension has to be loaded to use this Microsoft_Http_Client adapter.');
- }
- }
-
- /**
- * Set the configuration array for the adapter
- *
- * @throws Microsoft_Http_Client_Adapter_Exception
- * @param array $config
- * @return Microsoft_Http_Client_Adapter_Curl
- */
- public function setConfig($config = array())
- {
- if (! is_array($config)) {
- require_once 'Microsoft/Http/Client/Adapter/Exception.php';
- throw new Microsoft_Http_Client_Adapter_Exception(
- 'Array expected, got ' . gettype($config)
- );
- }
-
- if(isset($config['proxy_user']) && isset($config['proxy_pass'])) {
- $this->setCurlOption(CURLOPT_PROXYUSERPWD, $config['proxy_user'].":".$config['proxy_pass']);
- unset($config['proxy_user'], $config['proxy_pass']);
- }
-
- foreach ($config as $k => $v) {
- $option = strtolower($k);
- switch($option) {
- case 'proxy_host':
- $this->setCurlOption(CURLOPT_PROXY, $v);
- break;
- case 'proxy_port':
- $this->setCurlOption(CURLOPT_PROXYPORT, $v);
- break;
- default:
- $this->_config[$option] = $v;
- break;
- }
- }
-
- return $this;
- }
-
- /**
- * Retrieve the array of all configuration options
- *
- * @return array
- */
- public function getConfig()
- {
- return $this->_config;
- }
-
- /**
- * Direct setter for cURL adapter related options.
- *
- * @param string|int $option
- * @param mixed $value
- * @return Microsoft_Http_Adapter_Curl
- */
- public function setCurlOption($option, $value)
- {
- if (!isset($this->_config['curloptions'])) {
- $this->_config['curloptions'] = array();
- }
- $this->_config['curloptions'][$option] = $value;
- return $this;
- }
-
- /**
- * Initialize curl
- *
- * @param string $host
- * @param int $port
- * @param boolean $secure
- * @return void
- * @throws Microsoft_Http_Client_Adapter_Exception if unable to connect
- */
- public function connect($host, $port = 80, $secure = false)
- {
- // If we're already connected, disconnect first
- if ($this->_curl) {
- $this->close();
- }
-
- // If we are connected to a different server or port, disconnect first
- if ($this->_curl
- && is_array($this->_connected_to)
- && ($this->_connected_to[0] != $host
- || $this->_connected_to[1] != $port)
- ) {
- $this->close();
- }
-
- // Do the actual connection
- $this->_curl = curl_init();
- if ($port != 80) {
- curl_setopt($this->_curl, CURLOPT_PORT, intval($port));
- }
-
- // Set timeout
- curl_setopt($this->_curl, CURLOPT_CONNECTTIMEOUT, $this->_config['timeout']);
-
- // Set Max redirects
- curl_setopt($this->_curl, CURLOPT_MAXREDIRS, $this->_config['maxredirects']);
-
- if (!$this->_curl) {
- $this->close();
-
- require_once 'Microsoft/Http/Client/Adapter/Exception.php';
- throw new Microsoft_Http_Client_Adapter_Exception('Unable to Connect to ' . $host . ':' . $port);
- }
-
- if ($secure !== false) {
- // Behave the same like Microsoft_Http_Adapter_Socket on SSL options.
- if (isset($this->_config['sslcert'])) {
- curl_setopt($this->_curl, CURLOPT_SSLCERT, $this->_config['sslcert']);
- }
- if (isset($this->_config['sslpassphrase'])) {
- curl_setopt($this->_curl, CURLOPT_SSLCERTPASSWD, $this->_config['sslpassphrase']);
- }
- }
-
- // Update connected_to
- $this->_connected_to = array($host, $port);
- }
-
- /**
- * Send request to the remote server
- *
- * @param string $method
- * @param Microsoft_Uri_Http $uri
- * @param float $http_ver
- * @param array $headers
- * @param string $body
- * @return string $request
- * @throws Microsoft_Http_Client_Adapter_Exception If connection fails, connected to wrong host, no PUT file defined, unsupported method, or unsupported cURL option
- */
- public function write($method, $uri, $httpVersion = 1.1, $headers = array(), $body = '')
- {
- // Make sure we're properly connected
- if (!$this->_curl) {
- require_once 'Microsoft/Http/Client/Adapter/Exception.php';
- throw new Microsoft_Http_Client_Adapter_Exception("Trying to write but we are not connected");
- }
-
- if ($this->_connected_to[0] != $uri->getHost() || $this->_connected_to[1] != $uri->getPort()) {
- require_once 'Microsoft/Http/Client/Adapter/Exception.php';
- throw new Microsoft_Http_Client_Adapter_Exception("Trying to write but we are connected to the wrong host");
- }
-
- // set URL
- curl_setopt($this->_curl, CURLOPT_URL, $uri->__toString());
-
- // ensure correct curl call
- $curlValue = true;
- switch ($method) {
- case Microsoft_Http_Client::GET:
- $curlMethod = CURLOPT_HTTPGET;
- break;
-
- case Microsoft_Http_Client::POST:
- $curlMethod = CURLOPT_POST;
- break;
-
- case Microsoft_Http_Client::PUT:
- // There are two different types of PUT request, either a Raw Data string has been set
- // or CURLOPT_INFILE and CURLOPT_INFILESIZE are used.
- if(is_resource($body)) {
- $this->_config['curloptions'][CURLOPT_INFILE] = $body;
- }
- if (isset($this->_config['curloptions'][CURLOPT_INFILE])) {
- // Now we will probably already have Content-Length set, so that we have to delete it
- // from $headers at this point:
- foreach ($headers AS $k => $header) {
- if (preg_match('/Content-Length:\s*(\d+)/i', $header, $m)) {
- if(is_resource($body)) {
- $this->_config['curloptions'][CURLOPT_INFILESIZE] = (int)$m[1];
- }
- unset($headers[$k]);
- }
- }
-
- if (!isset($this->_config['curloptions'][CURLOPT_INFILESIZE])) {
- require_once 'Microsoft/Http/Client/Adapter/Exception.php';
- throw new Microsoft_Http_Client_Adapter_Exception("Cannot set a file-handle for cURL option CURLOPT_INFILE without also setting its size in CURLOPT_INFILESIZE.");
- }
-
- if(is_resource($body)) {
- $body = '';
- }
-
- $curlMethod = CURLOPT_PUT;
- } else {
- $curlMethod = CURLOPT_CUSTOMREQUEST;
- $curlValue = "PUT";
- }
- break;
-
- case Microsoft_Http_Client::DELETE:
- $curlMethod = CURLOPT_CUSTOMREQUEST;
- $curlValue = "DELETE";
- break;
-
- case Microsoft_Http_Client::OPTIONS:
- $curlMethod = CURLOPT_CUSTOMREQUEST;
- $curlValue = "OPTIONS";
- break;
-
- case Microsoft_Http_Client::TRACE:
- $curlMethod = CURLOPT_CUSTOMREQUEST;
- $curlValue = "TRACE";
- break;
-
- default:
- // For now, through an exception for unsupported request methods
- require_once 'Microsoft/Http/Client/Adapter/Exception.php';
- throw new Microsoft_Http_Client_Adapter_Exception("Method currently not supported");
- }
-
- if(is_resource($body) && $curlMethod != CURLOPT_PUT) {
- require_once 'Microsoft/Http/Client/Adapter/Exception.php';
- throw new Microsoft_Http_Client_Adapter_Exception("Streaming requests are allowed only with PUT");
- }
-
- // get http version to use
- $curlHttp = ($httpVersion == 1.1) ? CURL_HTTP_VERSION_1_1 : CURL_HTTP_VERSION_1_0;
-
- // mark as HTTP request and set HTTP method
- curl_setopt($this->_curl, $curlHttp, true);
- curl_setopt($this->_curl, $curlMethod, $curlValue);
-
- if($this->out_stream) {
- // headers will be read into the response
- curl_setopt($this->_curl, CURLOPT_HEADER, false);
- curl_setopt($this->_curl, CURLOPT_HEADERFUNCTION, array($this, "readHeader"));
- // and data will be written into the file
- curl_setopt($this->_curl, CURLOPT_FILE, $this->out_stream);
- } else {
- // ensure headers are also returned
- curl_setopt($this->_curl, CURLOPT_HEADER, true);
-
- // ensure actual response is returned
- curl_setopt($this->_curl, CURLOPT_RETURNTRANSFER, true);
- }
-
- // set additional headers
- $headers['Accept'] = '';
- curl_setopt($this->_curl, CURLOPT_HTTPHEADER, $headers);
-
- /**
- * Make sure POSTFIELDS is set after $curlMethod is set:
- * @link http://de2.php.net/manual/en/function.curl-setopt.php#81161
- */
- if ($method == Microsoft_Http_Client::POST) {
- curl_setopt($this->_curl, CURLOPT_POSTFIELDS, $body);
- } elseif ($curlMethod == CURLOPT_PUT) {
- // this covers a PUT by file-handle:
- // Make the setting of this options explicit (rather than setting it through the loop following a bit lower)
- // to group common functionality together.
- curl_setopt($this->_curl, CURLOPT_INFILE, $this->_config['curloptions'][CURLOPT_INFILE]);
- curl_setopt($this->_curl, CURLOPT_INFILESIZE, $this->_config['curloptions'][CURLOPT_INFILESIZE]);
- unset($this->_config['curloptions'][CURLOPT_INFILE]);
- unset($this->_config['curloptions'][CURLOPT_INFILESIZE]);
- } elseif ($method == Microsoft_Http_Client::PUT) {
- // This is a PUT by a setRawData string, not by file-handle
- curl_setopt($this->_curl, CURLOPT_POSTFIELDS, $body);
- }
-
- // set additional curl options
- if (isset($this->_config['curloptions'])) {
- foreach ((array)$this->_config['curloptions'] as $k => $v) {
- if (!in_array($k, $this->_invalidOverwritableCurlOptions)) {
- if (@curl_setopt($this->_curl, $k, $v) == false) {
- require_once 'Microsoft/Http/Client/Exception.php';
- throw new Microsoft_Http_Client_Exception(sprintf("Unknown or erroreous cURL option '%s' set", $k));
- }
- }
- }
- }
-
- // send the request
- $response = curl_exec($this->_curl);
-
- // if we used streaming, headers are already there
- if(!is_resource($this->out_stream)) {
- $this->_response = $response;
- }
-
- $request = curl_getinfo($this->_curl, CURLINFO_HEADER_OUT);
- $request .= $body;
-
- if (empty($this->_response)) {
- require_once 'Microsoft/Http/Client/Exception.php';
- throw new Microsoft_Http_Client_Exception("Error in cURL request: " . curl_error($this->_curl));
- }
-
- // cURL automatically decodes chunked-messages, this means we have to disallow the Microsoft_Http_Response to do it again
- if (stripos($this->_response, "Transfer-Encoding: chunked\r\n")) {
- $this->_response = str_ireplace("Transfer-Encoding: chunked\r\n", '', $this->_response);
- }
-
- // Eliminate multiple HTTP responses.
- do {
- $parts = preg_split('|(?:\r?\n){2}|m', $this->_response, 2);
- $again = false;
-
- if (isset($parts[1]) && preg_match("|^HTTP/1\.[01](.*?)\r\n|mi", $parts[1])) {
- $this->_response = $parts[1];
- $again = true;
- }
- } while ($again);
-
- // cURL automatically handles Proxy rewrites, remove the "HTTP/1.0 200 Connection established" string:
- if (stripos($this->_response, "HTTP/1.0 200 Connection established\r\n\r\n") !== false) {
- $this->_response = str_ireplace("HTTP/1.0 200 Connection established\r\n\r\n", '', $this->_response);
- }
-
- return $request;
- }
-
- /**
- * Return read response from server
- *
- * @return string
- */
- public function read()
- {
- return $this->_response;
- }
-
- /**
- * Close the connection to the server
- *
- */
- public function close()
- {
- if(is_resource($this->_curl)) {
- curl_close($this->_curl);
- }
- $this->_curl = null;
- $this->_connected_to = array(null, null);
- }
-
- /**
- * Get cUrl Handle
- *
- * @return resource
- */
- public function getHandle()
- {
- return $this->_curl;
- }
-
- /**
- * Set output stream for the response
- *
- * @param resource $stream
- * @return Microsoft_Http_Client_Adapter_Socket
- */
- public function setOutputStream($stream)
- {
- $this->out_stream = $stream;
- return $this;
- }
-
- /**
- * Header reader function for CURL
- *
- * @param resource $curl
- * @param string $header
- * @return int
- */
- public function readHeader($curl, $header)
- {
- $this->_response .= $header;
- return strlen($header);
- }
- }