Ticket #11559: 11559.diff

wp-includes/class.http.php

@@ +1 @@
+<?php
+/**
+ * Simple and uniform HTTP request API.
+ *
+ * Will eventually replace and standardize the WordPress HTTP requests made.
+ *
+ * @link http://trac.wordpress.org/ticket/4779 HTTP API Proposal
+ *
+ * @package WordPress
+ * @subpackage HTTP
+ * @since 2.7.0
+ * @author Jacob Santos <wordpress@santosj.name>
+ */
+
+/**
+ * WordPress HTTP Class for managing HTTP Transports and making HTTP requests.
+ *
+ * This class is called for the functionality of making HTTP requests and should replace Snoopy
+ * functionality, eventually. There is no available functionality to add HTTP transport
+ * implementations, since most of the HTTP transports are added and available for use.
+ *
+ * The exception is that cURL is not available as a transport and lacking an implementation. It will
+ * be added later and should be a patch on the WordPress Trac.
+ *
+ * There are no properties, because none are needed and for performance reasons. Some of the
+ * functions are static and while they do have some overhead over functions in PHP4, the purpose is
+ * maintainability. When PHP5 is finally the requirement, it will be easy to add the static keyword
+ * to the code. It is not as easy to convert a function to a method after enough code uses the old
+ * way.
+ *
+ * Debugging includes several actions, which pass different variables for debugging the HTTP API.
+ *
+ * <strong>http_transport_get_debug</strong> - gives working, nonblocking, and blocking transports.
+ *
+ * <strong>http_transport_post_debug</strong> - gives working, nonblocking, and blocking transports.
+ *
+ * @package WordPress
+ * @subpackage HTTP
+ * @since 2.7.0
+ */
+class WP_Http {
+
+        /**
+         * PHP4 style Constructor - Calls PHP5 Style Constructor
+         *
+         * @since 2.7.0
+         * @return WP_Http
+         */
+        function WP_Http() {
+                $this->__construct();
+        }
+
+        /**
+         * PHP5 style Constructor - Setup available transport if not available.
+         *
+         * PHP4 does not have the 'self' keyword and since WordPress supports PHP4,
+         * the class needs to be used for the static call.
+         *
+         * The transport are setup to save time. This should only be called once, so
+         * the overhead should be fine.
+         *
+         * @since 2.7.0
+         * @return WP_Http
+         */
+        function __construct() {
+                WP_Http::_getTransport();
+                WP_Http::_postTransport();
+        }
+
+        /**
+         * Tests the WordPress HTTP objects for an object to use and returns it.
+         *
+         * Tests all of the objects and returns the object that passes. Also caches
+         * that object to be used later.
+         *
+         * The order for the GET/HEAD requests are HTTP Extension, cURL, Streams, Fopen,
+         * and finally Fsockopen. fsockopen() is used last, because it has the most
+         * overhead in its implementation. There isn't any real way around it, since
+         * redirects have to be supported, much the same way the other transports
+         * also handle redirects.
+         *
+         * There are currently issues with "localhost" not resolving correctly with
+         * DNS. This may cause an error "failed to open stream: A connection attempt
+         * failed because the connected party did not properly respond after a
+         * period of time, or established connection failed because connected host
+         * has failed to respond."
+         *
+         * @since 2.7.0
+         * @access private
+         *
+         * @param array $args Request args, default us an empty array
+         * @return object|null Null if no transports are available, HTTP transport object.
+         */
+        function &_getTransport( $args = array() ) {
+                static $working_transport, $blocking_transport, $nonblocking_transport;
+
+                if ( is_null($working_transport) ) {
+                        if ( true === WP_Http_ExtHttp::test($args) ) {
+                                $working_transport['exthttp'] = new WP_Http_ExtHttp();
+                                $blocking_transport[] = &$working_transport['exthttp'];
+                        } else if ( true === WP_Http_Curl::test($args) ) {
+                                $working_transport['curl'] = new WP_Http_Curl();
+                                $blocking_transport[] = &$working_transport['curl'];
+                        } else if ( true === WP_Http_Streams::test($args) ) {
+                                $working_transport['streams'] = new WP_Http_Streams();
+                                $blocking_transport[] = &$working_transport['streams'];
+                        } else if ( true === WP_Http_Fopen::test($args) ) {
+                                $working_transport['fopen'] = new WP_Http_Fopen();
+                                $blocking_transport[] = &$working_transport['fopen'];
+                        } else if ( true === WP_Http_Fsockopen::test($args) ) {
+                                $working_transport['fsockopen'] = new WP_Http_Fsockopen();
+                                $blocking_transport[] = &$working_transport['fsockopen'];
+                        }
+
+                        foreach ( array('curl', 'streams', 'fopen', 'fsockopen', 'exthttp') as $transport ) {
+                                if ( isset($working_transport[$transport]) )
+                                        $nonblocking_transport[] = &$working_transport[$transport];
+                        }
+                }
+
+                do_action( 'http_transport_get_debug', $working_transport, $blocking_transport, $nonblocking_transport );
+
+                if ( isset($args['blocking']) && !$args['blocking'] )
+                        return $nonblocking_transport;
+                else
+                        return $blocking_transport;
+        }
+
+        /**
+         * Tests the WordPress HTTP objects for an object to use and returns it.
+         *
+         * Tests all of the objects and returns the object that passes. Also caches
+         * that object to be used later. This is for posting content to a URL and
+         * is used when there is a body. The plain Fopen Transport can not be used
+         * to send content, but the streams transport can. This is a limitation that
+         * is addressed here, by just not including that transport.
+         *
+         * @since 2.7.0
+         * @access private
+         *
+         * @param array $args Request args, default us an empty array
+         * @return object|null Null if no transports are available, HTTP transport object.
+         */
+        function &_postTransport( $args = array() ) {
+                static $working_transport, $blocking_transport, $nonblocking_transport;
+
+                if ( is_null($working_transport) ) {
+                        if ( true === WP_Http_ExtHttp::test($args) ) {
+                                $working_transport['exthttp'] = new WP_Http_ExtHttp();
+                                $blocking_transport[] = &$working_transport['exthttp'];
+                        } else if ( true === WP_Http_Curl::test($args) ) {
+                                $working_transport['curl'] = new WP_Http_Curl();
+                                $blocking_transport[] = &$working_transport['curl'];
+                        } else if ( true === WP_Http_Streams::test($args) ) {
+                                $working_transport['streams'] = new WP_Http_Streams();
+                                $blocking_transport[] = &$working_transport['streams'];
+                        } else if ( true === WP_Http_Fsockopen::test($args) ) {
+                                $working_transport['fsockopen'] = new WP_Http_Fsockopen();
+                                $blocking_transport[] = &$working_transport['fsockopen'];
+                        }
+
+                        foreach ( array('curl', 'streams', 'fsockopen', 'exthttp') as $transport ) {
+                                if ( isset($working_transport[$transport]) )
+                                        $nonblocking_transport[] = &$working_transport[$transport];
+                        }
+                }
+
+                do_action( 'http_transport_post_debug', $working_transport, $blocking_transport, $nonblocking_transport );
+
+                if ( isset($args['blocking']) && !$args['blocking'] )
+                        return $nonblocking_transport;
+                else
+                        return $blocking_transport;
+        }
+
+        /**
+         * Send a HTTP request to a URI.
+         *
+         * The body and headers are part of the arguments. The 'body' argument is for the body and will
+         * accept either a string or an array. The 'headers' argument should be an array, but a string
+         * is acceptable. If the 'body' argument is an array, then it will automatically be escaped
+         * using http_build_query().
+         *
+         * The only URI that are supported in the HTTP Transport implementation are the HTTP and HTTPS
+         * protocols. HTTP and HTTPS are assumed so the server might not know how to handle the send
+         * headers. Other protocols are unsupported and most likely will fail.
+         *
+         * The defaults are 'method', 'timeout', 'redirection', 'httpversion', 'blocking' and
+         * 'user-agent'.
+         *
+         * Accepted 'method' values are 'GET', 'POST', and 'HEAD', some transports technically allow
+         * others, but should not be assumed. The 'timeout' is used to sent how long the connection
+         * should stay open before failing when no response. 'redirection' is used to track how many
+         * redirects were taken and used to sent the amount for other transports, but not all transports
+         * accept setting that value.
+         *
+         * The 'httpversion' option is used to sent the HTTP version and accepted values are '1.0', and
+         * '1.1' and should be a string. Version 1.1 is not supported, because of chunk response. The
+         * 'user-agent' option is the user-agent and is used to replace the default user-agent, which is
+         * 'WordPress/WP_Version', where WP_Version is the value from $wp_version.
+         *
+         * 'blocking' is the default, which is used to tell the transport, whether it should halt PHP
+         * while it performs the request or continue regardless. Actually, that isn't entirely correct.
+         * Blocking mode really just means whether the fread should just pull what it can whenever it
+         * gets bytes or if it should wait until it has enough in the buffer to read or finishes reading
+         * the entire content. It doesn't actually always mean that PHP will continue going after making
+         * the request.
+         *
+         * @access public
+         * @since 2.7.0
+         * @todo Refactor this code. The code in this method extends the scope of its original purpose
+         *              and should be refactored to allow for cleaner abstraction and reduce duplication of the
+         *              code. One suggestion is to create a class specifically for the arguments, however
+         *              preliminary refactoring to this affect has affect more than just the scope of the
+         *              arguments. Something to ponder at least.
+         *
+         * @param string $url URI resource.
+         * @param str|array $args Optional. Override the defaults.
+         * @return array containing 'headers', 'body', 'response', 'cookies'
+         */
+        function request( $url, $args = array() ) {
+                global $wp_version;
+
+                $defaults = array(
+                        'method' => 'GET',
+                        'timeout' => apply_filters( 'http_request_timeout', 5),
+                        'redirection' => apply_filters( 'http_request_redirection_count', 5),
+                        'httpversion' => apply_filters( 'http_request_version', '1.0'),
+                        'user-agent' => apply_filters( 'http_headers_useragent', 'WordPress/' . $wp_version . '; ' . get_bloginfo( 'url' )  ),
+                        'blocking' => true,
+                        'headers' => array(),
+                        'cookies' => array(),
+                        'body' => null,
+                        'compress' => false,
+                        'decompress' => true,
+                        'sslverify' => true
+                );
+
+                $r = wp_parse_args( $args, $defaults );
+                $r = apply_filters( 'http_request_args', $r, $url );
+
+                // Allow plugins to short-circuit the request
+                $pre = apply_filters( 'pre_http_request', false, $r, $url );
+                if ( false !== $pre )
+                        return $pre;
+
+                $arrURL = parse_url($url);
+
+                if ( $this->block_request( $url ) )
+                        return new WP_Error('http_request_failed', __('User has blocked requests through HTTP.'));
+
+                // Determine if this is a https call and pass that on to the transport functions
+                // so that we can blacklist the transports that do not support ssl verification
+                $r['ssl'] = $arrURL['scheme'] == 'https' || $arrURL['scheme'] == 'ssl';
+
+                // Determine if this request is to OUR install of WordPress
+                $homeURL = parse_url(get_bloginfo('url'));
+                $r['local'] = $homeURL['host'] == $arrURL['host'] || 'localhost' == $arrURL['host'];
+                unset($homeURL);
+
+                if ( is_null( $r['headers'] ) )
+                        $r['headers'] = array();
+
+                if ( ! is_array($r['headers']) ) {
+                        $processedHeaders = WP_Http::processHeaders($r['headers']);
+                        $r['headers'] = $processedHeaders['headers'];
+                }
+
+                if ( isset($r['headers']['User-Agent']) ) {
+                        $r['user-agent'] = $r['headers']['User-Agent'];
+                        unset($r['headers']['User-Agent']);
+                }
+
+                if ( isset($r['headers']['user-agent']) ) {
+                        $r['user-agent'] = $r['headers']['user-agent'];
+                        unset($r['headers']['user-agent']);
+                }
+
+                // Construct Cookie: header if any cookies are set
+                WP_Http::buildCookieHeader( $r );
+
+                if ( WP_Http_Encoding::is_available() )
+                        $r['headers']['Accept-Encoding'] = WP_Http_Encoding::accept_encoding();
+
+                if ( empty($r['body']) ) {
+                        // Some servers fail when sending content without the content-length header being set.
+                        // Also, to fix another bug, we only send when doing POST and PUT and the content-length
+                        // header isn't already set.
+                        if( ($r['method'] == 'POST' || $r['method'] == 'PUT') && ! isset($r['headers']['Content-Length']) )
+                                $r['headers']['Content-Length'] = 0;
+
+                        // The method is ambiguous, because we aren't talking about HTTP methods, the "get" in
+                        // this case is simply that we aren't sending any bodies and to get the transports that
+                        // don't support sending bodies along with those which do.
+                        $transports = WP_Http::_getTransport($r);
+                } else {
+                        if ( is_array( $r['body'] ) || is_object( $r['body'] ) ) {
+                                if ( ! version_compare(phpversion(), '5.1.2', '>=') )
+                                        $r['body'] = _http_build_query($r['body'], null, '&');
+                                else
+                                        $r['body'] = http_build_query($r['body'], null, '&');
+                                $r['headers']['Content-Type'] = 'application/x-www-form-urlencoded; charset=' . get_option('blog_charset');
+                                $r['headers']['Content-Length'] = strlen($r['body']);
+                        }
+
+                        if ( ! isset( $r['headers']['Content-Length'] ) && ! isset( $r['headers']['content-length'] ) )
+                                $r['headers']['Content-Length'] = strlen($r['body']);
+
+                        // The method is ambiguous, because we aren't talking about HTTP methods, the "post" in
+                        // this case is simply that we are sending HTTP body and to get the transports that do
+                        // support sending the body. Not all do, depending on the limitations of the PHP core
+                        // limitations.
+                        $transports = WP_Http::_postTransport($r);
+                }
+
+                do_action( 'http_api_debug', $transports, 'transports_list' );
+
+                $response = array( 'headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array() );
+                foreach ( (array) $transports as $transport ) {
+                        $response = $transport->request($url, $r);
+
+                        do_action( 'http_api_debug', $response, 'response', get_class($transport) );
+
+                        if ( ! is_wp_error($response) )
+                                return apply_filters( 'http_response', $response, $r, $url );
+                }
+
+                return $response;
+        }
+
+        /**
+         * Uses the POST HTTP method.
+         *
+         * Used for sending data that is expected to be in the body.
+         *
+         * @access public
+         * @since 2.7.0
+         *
+         * @param string $url URI resource.
+         * @param str|array $args Optional. Override the defaults.
+         * @return boolean
+         */
+        function post($url, $args = array()) {
+                $defaults = array('method' => 'POST');
+                $r = wp_parse_args( $args, $defaults );
+                return $this->request($url, $r);
+        }
+
+        /**
+         * Uses the GET HTTP method.
+         *
+         * Used for sending data that is expected to be in the body.
+         *
+         * @access public
+         * @since 2.7.0
+         *
+         * @param string $url URI resource.
+         * @param str|array $args Optional. Override the defaults.
+         * @return boolean
+         */
+        function get($url, $args = array()) {
+                $defaults = array('method' => 'GET');
+                $r = wp_parse_args( $args, $defaults );
+                return $this->request($url, $r);
+        }
+
+        /**
+         * Uses the HEAD HTTP method.
+         *
+         * Used for sending data that is expected to be in the body.
+         *
+         * @access public
+         * @since 2.7.0
+         *
+         * @param string $url URI resource.
+         * @param str|array $args Optional. Override the defaults.
+         * @return boolean
+         */
+        function head($url, $args = array()) {
+                $defaults = array('method' => 'HEAD');
+                $r = wp_parse_args( $args, $defaults );
+                return $this->request($url, $r);
+        }
+
+        /**
+         * Parses the responses and splits the parts into headers and body.
+         *
+         * @access public
+         * @static
+         * @since 2.7.0
+         *
+         * @param string $strResponse The full response string
+         * @return array Array with 'headers' and 'body' keys.
+         */
+        function processResponse($strResponse) {
+                list($theHeaders, $theBody) = explode("\r\n\r\n", $strResponse, 2);
+                return array('headers' => $theHeaders, 'body' => $theBody);
+        }
+
+        /**
+         * Transform header string into an array.
+         *
+         * If an array is given then it is assumed to be raw header data with numeric keys with the
+         * headers as the values. No headers must be passed that were already processed.
+         *
+         * @access public
+         * @static
+         * @since 2.7.0
+         *
+         * @param string|array $headers
+         * @return array Processed string headers. If duplicate headers are encountered,
+         *                                      Then a numbered array is returned as the value of that header-key.
+         */
+        function processHeaders($headers) {
+                // split headers, one per array element
+                if ( is_string($headers) ) {
+                        // tolerate line terminator: CRLF = LF (RFC 2616 19.3)
+                        $headers = str_replace("\r\n", "\n", $headers);
+                        // unfold folded header fields. LWS = [CRLF] 1*( SP | HT ) <US-ASCII SP, space (32)>, <US-ASCII HT, horizontal-tab (9)> (RFC 2616 2.2)
+                        $headers = preg_replace('/\n[ \t]/', ' ', $headers);
+                        // create the headers array
+                        $headers = explode("\n", $headers);
+                }
+
+                $response = array('code' => 0, 'message' => '');
+
+                // If a redirection has taken place, The headers for each page request may have been passed.
+                // In this case, determine the final HTTP header and parse from there.
+                for ( $i = count($headers)-1; $i >= 0; $i-- ) {
+                        if ( false === strpos($headers[$i], ':') ) {
+                                $headers = array_splice($headers, $i);
+                                break;
+                        }
+                }
+
+                $cookies = array();
+                $newheaders = array();
+                foreach ( $headers as $tempheader ) {
+                        if ( empty($tempheader) )
+                                continue;
+
+                        if ( false === strpos($tempheader, ':') ) {
+                                list( , $iResponseCode, $strResponseMsg) = explode(' ', $tempheader, 3);
+                                $response['code'] = $iResponseCode;
+                                $response['message'] = $strResponseMsg;
+                                continue;
+                        }
+
+                        list($key, $value) = explode(':', $tempheader, 2);
+
+                        if ( !empty( $value ) ) {
+                                $key = strtolower( $key );
+                                if ( isset( $newheaders[$key] ) ) {
+                                        $newheaders[$key] = array( $newheaders[$key], trim( $value ) );
+                                } else {
+                                        $newheaders[$key] = trim( $value );
+                                }
+                                if ( 'set-cookie' == strtolower( $key ) )
+                                        $cookies[] = new WP_Http_Cookie( $value );
+                        }
+                }
+
+                return array('response' => $response, 'headers' => $newheaders, 'cookies' => $cookies);
+        }
+
+        /**
+         * Takes the arguments for a ::request() and checks for the cookie array.
+         *
+         * If it's found, then it's assumed to contain WP_Http_Cookie objects, which are each parsed
+         * into strings and added to the Cookie: header (within the arguments array). Edits the array by
+         * reference.
+         *
+         * @access public
+         * @version 2.8.0
+         * @static
+         *
+         * @param array $r Full array of args passed into ::request()
+         */
+        function buildCookieHeader( &$r ) {
+                if ( ! empty($r['cookies']) ) {
+                        $cookies_header = '';
+                        foreach ( (array) $r['cookies'] as $cookie ) {
+                                $cookies_header .= $cookie->getHeaderValue() . '; ';
+                        }
+                        $cookies_header = substr( $cookies_header, 0, -2 );
+                        $r['headers']['cookie'] = $cookies_header;
+                }
+        }
+
+        /**
+         * Decodes chunk transfer-encoding, based off the HTTP 1.1 specification.
+         *
+         * Based off the HTTP http_encoding_dechunk function. Does not support UTF-8. Does not support
+         * returning footer headers. Shouldn't be too difficult to support it though.
+         *
+         * @todo Add support for footer chunked headers.
+         * @access public
+         * @since 2.7.0
+         * @static
+         *
+         * @param string $body Body content
+         * @return string Chunked decoded body on success or raw body on failure.
+         */
+        function chunkTransferDecode($body) {
+                $body = str_replace(array("\r\n", "\r"), "\n", $body);
+                // The body is not chunked encoding or is malformed.
+                if ( ! preg_match( '/^[0-9a-f]+(\s|\n)+/mi', trim($body) ) )
+                        return $body;
+
+                $parsedBody = '';
+                //$parsedHeaders = array(); Unsupported
+
+                while ( true ) {
+                        $hasChunk = (bool) preg_match( '/^([0-9a-f]+)(\s|\n)+/mi', $body, $match );
+
+                        if ( $hasChunk ) {
+                                if ( empty( $match[1] ) )
+                                        return $body;
+
+                                $length = hexdec( $match[1] );
+                                $chunkLength = strlen( $match[0] );
+
+                                $strBody = substr($body, $chunkLength, $length);
+                                $parsedBody .= $strBody;
+
+                                $body = ltrim(str_replace(array($match[0], $strBody), '', $body), "\n");
+
+                                if ( "0" == trim($body) )
+                                        return $parsedBody; // Ignore footer headers.
+                        } else {
+                                return $body;
+                        }
+                }
+        }
+
+        /**
+         * Block requests through the proxy.
+         *
+         * Those who are behind a proxy and want to prevent access to certain hosts may do so. This will
+         * prevent plugins from working and core functionality, if you don't include api.wordpress.org.
+         *
+         * You block external URL requests by defining WP_HTTP_BLOCK_EXTERNAL in your wp-config.php file
+         * and this will only allow localhost and your blog to make requests. The constant
+         * WP_ACCESSIBLE_HOSTS will allow additional hosts to go through for requests. The format of the
+         * WP_ACCESSIBLE_HOSTS constant is a comma separated list of hostnames to allow.
+         *
+         * @since 2.8.0
+         * @link http://core.trac.wordpress.org/ticket/8927 Allow preventing external requests.
+         *
+         * @param string $uri URI of url.
+         * @return bool True to block, false to allow.
+         */
+        function block_request($uri) {
+                // We don't need to block requests, because nothing is blocked.
+                if ( ! defined('WP_HTTP_BLOCK_EXTERNAL') || ( defined('WP_HTTP_BLOCK_EXTERNAL') && WP_HTTP_BLOCK_EXTERNAL == false ) )
+                        return false;
+
+                // parse_url() only handles http, https type URLs, and will emit E_WARNING on failure.
+                // This will be displayed on blogs, which is not reasonable.
+                $check = @parse_url($uri);
+
+                /* Malformed URL, can not process, but this could mean ssl, so let through anyway.
+                 *
+                 * This isn't very security sound. There are instances where a hacker might attempt
+                 * to bypass the proxy and this check. However, the reason for this behavior is that
+                 * WordPress does not do any checking currently for non-proxy requests, so it is keeps with
+                 * the default unsecure nature of the HTTP request.
+                 */
+                if ( $check === false )
+                        return false;
+
+                $home = parse_url( get_option('siteurl') );
+
+                // Don't block requests back to ourselves by default
+                if ( $check['host'] == 'localhost' || $check['host'] == $home['host'] )
+                        return apply_filters('block_local_requests', false);
+
+                if ( !defined('WP_ACCESSIBLE_HOSTS') )
+                        return true;
+
+                static $accessible_hosts;
+                if ( null == $accessible_hosts )
+                        $accessible_hosts = preg_split('|,\s*|', WP_ACCESSIBLE_HOSTS);
+
+                return !in_array( $check['host'], $accessible_hosts ); //Inverse logic, If its in the array, then we can't access it.
+        }
+}
+
+/**
+ * HTTP request method uses fsockopen function to retrieve the url.
+ *
+ * This would be the preferred method, but the fsockopen implementation has the most overhead of all
+ * the HTTP transport implementations.
+ *
+ * @package WordPress
+ * @subpackage HTTP
+ * @since 2.7.0
+ */
+class WP_Http_Fsockopen {
+        /**
+         * Send a HTTP request to a URI using fsockopen().
+         *
+         * Does not support non-blocking mode.
+         *
+         * @see WP_Http::request For default options descriptions.
+         *
+         * @since 2.7
+         * @access public
+         * @param string $url URI resource.
+         * @param str|array $args Optional. Override the defaults.
+         * @return array 'headers', 'body', 'cookies' and 'response' keys.
+         */
+        function request($url, $args = array()) {
+                $defaults = array(
+                        'method' => 'GET', 'timeout' => 5,
+                        'redirection' => 5, 'httpversion' => '1.0',
+                        'blocking' => true,
+                        'headers' => array(), 'body' => null, 'cookies' => array()
+                );
+
+                $r = wp_parse_args( $args, $defaults );
+
+                if ( isset($r['headers']['User-Agent']) ) {
+                        $r['user-agent'] = $r['headers']['User-Agent'];
+                        unset($r['headers']['User-Agent']);
+                } else if( isset($r['headers']['user-agent']) ) {
+                        $r['user-agent'] = $r['headers']['user-agent'];
+                        unset($r['headers']['user-agent']);
+                }
+
+                // Construct Cookie: header if any cookies are set
+                WP_Http::buildCookieHeader( $r );
+
+                $iError = null; // Store error number
+                $strError = null; // Store error string
+
+                $arrURL = parse_url($url);
+
+                $fsockopen_host = $arrURL['host'];
+
+                $secure_transport = false;
+
+                if ( ! isset( $arrURL['port'] ) ) {
+                        if ( ( $arrURL['scheme'] == 'ssl' || $arrURL['scheme'] == 'https' ) && extension_loaded('openssl') ) {
+                                $fsockopen_host = "ssl://$fsockopen_host";
+                                $arrURL['port'] = 443;
+                                $secure_transport = true;
+                        } else {
+                                $arrURL['port'] = 80;
+                        }
+                }
+
+                //fsockopen has issues with 'localhost' with IPv6 with certain versions of PHP, It attempts to connect to ::1,
+                // which fails when the server is not setup for it. For compatibility, always connect to the IPv4 address.
+                if ( 'localhost' == strtolower($fsockopen_host) )
+                        $fsockopen_host = '127.0.0.1';
+
+                // There are issues with the HTTPS and SSL protocols that cause errors that can be safely
+                // ignored and should be ignored.
+                if ( true === $secure_transport )
+                        $error_reporting = error_reporting(0);
+
+                $startDelay = time();
+
+                $proxy = new WP_HTTP_Proxy();
+
+                if ( !WP_DEBUG ) {
+                        if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) )
+                                $handle = @fsockopen( $proxy->host(), $proxy->port(), $iError, $strError, $r['timeout'] );
+                        else
+                                $handle = @fsockopen( $fsockopen_host, $arrURL['port'], $iError, $strError, $r['timeout'] );
+                } else {
+                        if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) )
+                                $handle = fsockopen( $proxy->host(), $proxy->port(), $iError, $strError, $r['timeout'] );
+                        else
+                                $handle = fsockopen( $fsockopen_host, $arrURL['port'], $iError, $strError, $r['timeout'] );
+                }
+
+                $endDelay = time();
+
+                // If the delay is greater than the timeout then fsockopen should't be used, because it will
+                // cause a long delay.
+                $elapseDelay = ($endDelay-$startDelay) > $r['timeout'];
+                if ( true === $elapseDelay )
+                        add_option( 'disable_fsockopen', $endDelay, null, true );
+
+                if ( false === $handle )
+                        return new WP_Error('http_request_failed', $iError . ': ' . $strError);
+
+                $timeout = (int) floor( $r['timeout'] );
+                $utimeout = $timeout == $r['timeout'] ? 0 : 1000000 * $r['timeout'] % 1000000;
+                stream_set_timeout( $handle, $timeout, $utimeout );
+
+                if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) //Some proxies require full URL in this field.
+                        $requestPath = $url;
+                else
+                        $requestPath = $arrURL['path'] . ( isset($arrURL['query']) ? '?' . $arrURL['query'] : '' );
+
+                if ( empty($requestPath) )
+                        $requestPath .= '/';
+
+                $strHeaders = strtoupper($r['method']) . ' ' . $requestPath . ' HTTP/' . $r['httpversion'] . "\r\n";
+
+                if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) )
+                        $strHeaders .= 'Host: ' . $arrURL['host'] . ':' . $arrURL['port'] . "\r\n";
+                else
+                        $strHeaders .= 'Host: ' . $arrURL['host'] . "\r\n";
+
+                if ( isset($r['user-agent']) )
+                        $strHeaders .= 'User-agent: ' . $r['user-agent'] . "\r\n";
+
+                if ( is_array($r['headers']) ) {
+                        foreach ( (array) $r['headers'] as $header => $headerValue )
+                                $strHeaders .= $header . ': ' . $headerValue . "\r\n";
+                } else {
+                        $strHeaders .= $r['headers'];
+                }
+
+                if ( $proxy->use_authentication() )
+                        $strHeaders .= $proxy->authentication_header() . "\r\n";
+
+                $strHeaders .= "\r\n";
+
+                if ( ! is_null($r['body']) )
+                        $strHeaders .= $r['body'];
+
+                fwrite($handle, $strHeaders);
+
+                if ( ! $r['blocking'] ) {
+                        fclose($handle);
+                        return array( 'headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array() );
+                }
+
+                $strResponse = '';
+                while ( ! feof($handle) )
+                        $strResponse .= fread($handle, 4096);
+
+                fclose($handle);
+
+                if ( true === $secure_transport )
+                        error_reporting($error_reporting);
+
+                $process = WP_Http::processResponse($strResponse);
+                $arrHeaders = WP_Http::processHeaders($process['headers']);
+
+                // Is the response code within the 400 range?
+                if ( (int) $arrHeaders['response']['code'] >= 400 && (int) $arrHeaders['response']['code'] < 500 )
+                        return new WP_Error('http_request_failed', $arrHeaders['response']['code'] . ': ' . $arrHeaders['response']['message']);
+
+                // If location is found, then assume redirect and redirect to location.
+                if ( 'HEAD' != $r['method'] && isset($arrHeaders['headers']['location']) ) {
+                        if ( $r['redirection']-- > 0 ) {
+                                return $this->request($arrHeaders['headers']['location'], $r);
+                        } else {
+                                return new WP_Error('http_request_failed', __('Too many redirects.'));
+                        }
+                }
+
+                // If the body was chunk encoded, then decode it.
+                if ( ! empty( $process['body'] ) && isset( $arrHeaders['headers']['transfer-encoding'] ) && 'chunked' == $arrHeaders['headers']['transfer-encoding'] )
+                        $process['body'] = WP_Http::chunkTransferDecode($process['body']);
+
+                if ( true === $r['decompress'] && true === WP_Http_Encoding::should_decode($arrHeaders['headers']) )
+                        $process['body'] = WP_Http_Encoding::decompress( $process['body'] );
+
+                return array('headers' => $arrHeaders['headers'], 'body' => $process['body'], 'response' => $arrHeaders['response'], 'cookies' => $arrHeaders['cookies']);
+        }
+
+        /**
+         * Whether this class can be used for retrieving an URL.
+         *
+         * @since 2.7.0
+         * @static
+         * @return boolean False means this class can not be used, true means it can.
+         */
+        function test( $args = array() ) {
+                if ( false !== ($option = get_option( 'disable_fsockopen' )) && time()-$option < 43200 ) // 12 hours
+                        return false;
+
+                $is_ssl = isset($args['ssl']) && $args['ssl'];
+
+                if ( ! $is_ssl && function_exists( 'fsockopen' ) )
+                        $use = true;
+                elseif ( $is_ssl && extension_loaded('openssl') && function_exists( 'fsockopen' ) )
+                        $use = true;
+                else
+                        $use = false;
+
+                return apply_filters('use_fsockopen_transport', $use, $args);
+        }
+}
+
+/**
+ * HTTP request method uses fopen function to retrieve the url.
+ *
+ * Requires PHP version greater than 4.3.0 for stream support. Does not allow for $context support,
+ * but should still be okay, to write the headers, before getting the response. Also requires that
+ * 'allow_url_fopen' to be enabled.
+ *
+ * @package WordPress
+ * @subpackage HTTP
+ * @since 2.7.0
+ */
+class WP_Http_Fopen {
+        /**
+         * Send a HTTP request to a URI using fopen().
+         *
+         * This transport does not support sending of headers and body, therefore should not be used in
+         * the instances, where there is a body and headers.
+         *
+         * Notes: Does not support non-blocking mode. Ignores 'redirection' option.
+         *
+         * @see WP_Http::retrieve For default options descriptions.
+         *
+         * @access public
+         * @since 2.7.0
+         *
+         * @param string $url URI resource.
+         * @param str|array $args Optional. Override the defaults.
+         * @return array 'headers', 'body', 'cookies' and 'response' keys.
+         */
+        function request($url, $args = array()) {
+                $defaults = array(
+                        'method' => 'GET', 'timeout' => 5,
+                        'redirection' => 5, 'httpversion' => '1.0',
+                        'blocking' => true,
+                        'headers' => array(), 'body' => null, 'cookies' => array()
+                );
+
+                $r = wp_parse_args( $args, $defaults );
+
+                $arrURL = parse_url($url);
+
+                if ( false === $arrURL )
+                        return new WP_Error('http_request_failed', sprintf(__('Malformed URL: %s'), $url));
+
+                if ( 'http' != $arrURL['scheme'] && 'https' != $arrURL['scheme'] )
+                        $url = str_replace($arrURL['scheme'], 'http', $url);
+
+                if ( is_null( $r['headers'] ) )
+                        $r['headers'] = array();
+
+                if ( is_string($r['headers']) ) {
+                        $processedHeaders = WP_Http::processHeaders($r['headers']);
+                        $r['headers'] = $processedHeaders['headers'];
+                }
+
+                $initial_user_agent = ini_get('user_agent');
+
+                if ( !empty($r['headers']) && is_array($r['headers']) ) {
+                        $user_agent_extra_headers = '';
+                        foreach ( $r['headers'] as $header => $value )
+                                $user_agent_extra_headers .= "\r\n$header: $value";
+                        @ini_set('user_agent', $r['user-agent'] . $user_agent_extra_headers);
+                } else {
+                        @ini_set('user_agent', $r['user-agent']);
+                }
+
+                if ( !WP_DEBUG )
+                        $handle = @fopen($url, 'r');
+                else
+                        $handle = fopen($url, 'r');
+
+                if (! $handle)
+                        return new WP_Error('http_request_failed', sprintf(__('Could not open handle for fopen() to %s'), $url));
+
+                $timeout = (int) floor( $r['timeout'] );
+                $utimeout = $timeout == $r['timeout'] ? 0 : 1000000 * $r['timeout'] % 1000000;
+                stream_set_timeout( $handle, $timeout, $utimeout );
+
+                if ( ! $r['blocking'] ) {
+                        fclose($handle);
+                        @ini_set('user_agent', $initial_user_agent); //Clean up any extra headers added
+                        return array( 'headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array() );
+                }
+
+                $strResponse = '';
+                while ( ! feof($handle) )
+                        $strResponse .= fread($handle, 4096);
+
+                if ( function_exists('stream_get_meta_data') ) {
+                        $meta = stream_get_meta_data($handle);
+                        $theHeaders = $meta['wrapper_data'];
+                        if ( isset( $meta['wrapper_data']['headers'] ) )
+                                $theHeaders = $meta['wrapper_data']['headers'];
+                } else {
+                        //$http_response_header is a PHP reserved variable which is set in the current-scope when using the HTTP Wrapper
+                        //see http://php.oregonstate.edu/manual/en/reserved.variables.httpresponseheader.php
+                        $theHeaders = $http_response_header;
+                }
+
+                fclose($handle);
+
+                @ini_set('user_agent', $initial_user_agent); //Clean up any extra headers added
+
+                $processedHeaders = WP_Http::processHeaders($theHeaders);
+
+                if ( ! empty( $strResponse ) && isset( $processedHeaders['headers']['transfer-encoding'] ) && 'chunked' == $processedHeaders['headers']['transfer-encoding'] )
+                        $strResponse = WP_Http::chunkTransferDecode($strResponse);
+
+                if ( true === $r['decompress'] && true === WP_Http_Encoding::should_decode($processedHeaders['headers']) )
+                        $strResponse = WP_Http_Encoding::decompress( $strResponse );
+
+                return array('headers' => $processedHeaders['headers'], 'body' => $strResponse, 'response' => $processedHeaders['response'], 'cookies' => $processedHeaders['cookies']);
+        }
+
+        /**
+         * Whether this class can be used for retrieving an URL.
+         *
+         * @since 2.7.0
+         * @static
+         * @return boolean False means this class can not be used, true means it can.
+         */
+        function test($args = array()) {
+                if ( ! function_exists('fopen') || (function_exists('ini_get') && true != ini_get('allow_url_fopen')) )
+                        return false;
+
+                if ( isset($args['method']) && 'HEAD' == $args['method'] ) //This transport cannot make a HEAD request
+                        return false;
+
+                $use = true;
+                //PHP does not verify SSL certs, We can only make a request via this transports if SSL Verification is turned off.
+                $is_ssl = isset($args['ssl']) && $args['ssl'];
+                if ( $is_ssl ) {
+                        $is_local = isset($args['local']) && $args['local'];
+                        $ssl_verify = isset($args['sslverify']) && $args['sslverify'];
+                        if ( $is_local && true != apply_filters('https_local_ssl_verify', true) )
+                                $use = true;
+                        elseif ( !$is_local && true != apply_filters('https_ssl_verify', true) )
+                                $use = true;
+                        elseif ( !$ssl_verify )
+                                $use = true;
+                        else
+                                $use = false;
+                }
+
+                return apply_filters('use_fopen_transport', $use, $args);
+        }
+}
+
+/**
+ * HTTP request method uses Streams to retrieve the url.
+ *
+ * Requires PHP 5.0+ and uses fopen with stream context. Requires that 'allow_url_fopen' PHP setting
+ * to be enabled.
+ *
+ * Second preferred method for getting the URL, for PHP 5.
+ *
+ * @package WordPress
+ * @subpackage HTTP
+ * @since 2.7.0
+ */
+class WP_Http_Streams {
+        /**
+         * Send a HTTP request to a URI using streams with fopen().
+         *
+         * @access public
+         * @since 2.7.0
+         *
+         * @param string $url
+         * @param str|array $args Optional. Override the defaults.
+         * @return array 'headers', 'body', 'cookies' and 'response' keys.
+         */
+        function request($url, $args = array()) {
+                $defaults = array(
+                        'method' => 'GET', 'timeout' => 5,
+                        'redirection' => 5, 'httpversion' => '1.0',
+                        'blocking' => true,
+                        'headers' => array(), 'body' => null, 'cookies' => array()
+                );
+
+                $r = wp_parse_args( $args, $defaults );
+
+                if ( isset($r['headers']['User-Agent']) ) {
+                        $r['user-agent'] = $r['headers']['User-Agent'];
+                        unset($r['headers']['User-Agent']);
+                } else if( isset($r['headers']['user-agent']) ) {
+                        $r['user-agent'] = $r['headers']['user-agent'];
+                        unset($r['headers']['user-agent']);
+                }
+
+                // Construct Cookie: header if any cookies are set
+                WP_Http::buildCookieHeader( $r );
+
+                $arrURL = parse_url($url);
+
+                if ( false === $arrURL )
+                        return new WP_Error('http_request_failed', sprintf(__('Malformed URL: %s'), $url));
+
+                if ( 'http' != $arrURL['scheme'] && 'https' != $arrURL['scheme'] )
+                        $url = preg_replace('|^' . preg_quote($arrURL['scheme'], '|') . '|', 'http', $url);
+
+                // Convert Header array to string.
+                $strHeaders = '';
+                if ( is_array( $r['headers'] ) )
+                        foreach ( $r['headers'] as $name => $value )
+                                $strHeaders .= "{$name}: $value\r\n";
+                else if ( is_string( $r['headers'] ) )
+                        $strHeaders = $r['headers'];
+
+                $is_local = isset($args['local']) && $args['local'];
+                $ssl_verify = isset($args['sslverify']) && $args['sslverify'];
+                if ( $is_local )
+                        $ssl_verify = apply_filters('https_local_ssl_verify', $ssl_verify);
+                elseif ( ! $is_local )
+                        $ssl_verify = apply_filters('https_ssl_verify', $ssl_verify);
+
+                $arrContext = array('http' =>
+                        array(
+                                'method' => strtoupper($r['method']),
+                                'user_agent' => $r['user-agent'],
+                                'max_redirects' => $r['redirection'] + 1, // See #11557
+                                'protocol_version' => (float) $r['httpversion'],
+                                'header' => $strHeaders,
+                                'ignore_errors' => true, // Return non-200 requests. 
+                                'timeout' => $r['timeout'],
+                                'ssl' => array(
+                                                'verify_peer' => $ssl_verify,
+                                                'verify_host' => $ssl_verify
+                                )
+                        )
+                );
+
+                $proxy = new WP_HTTP_Proxy();
+
+                if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) {
+                        $arrContext['http']['proxy'] = 'tcp://' . $proxy->host() . ':' . $proxy->port();
+                        $arrContext['http']['request_fulluri'] = true;
+
+                        // We only support Basic authentication so this will only work if that is what your proxy supports.
+                        if ( $proxy->use_authentication() )
+                                $arrContext['http']['header'] .= $proxy->authentication_header() . "\r\n";
+                }
+
+                if ( 'HEAD' == $r['method'] ) // Disable redirects for HEAD requests
+                        $arrContext['http']['max_redirects'] = 1;
+
+                if ( ! empty($r['body'] ) )
+                        $arrContext['http']['content'] = $r['body'];
+
+                $context = stream_context_create($arrContext);
+
+                if ( !WP_DEBUG )
+                        $handle = @fopen($url, 'r', false, $context);
+                else
+                        $handle = fopen($url, 'r', false, $context);
+
+                if ( ! $handle )
+                        return new WP_Error('http_request_failed', sprintf(__('Could not open handle for fopen() to %s'), $url));
+
+                $timeout = (int) floor( $r['timeout'] );
+                $utimeout = $timeout == $r['timeout'] ? 0 : 1000000 * $r['timeout'] % 1000000;
+                stream_set_timeout( $handle, $timeout, $utimeout );
+
+                if ( ! $r['blocking'] ) {
+                        stream_set_blocking($handle, 0);
+                        fclose($handle);
+                        return array( 'headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array() );
+                }
+
+                $strResponse = stream_get_contents($handle);
+                $meta = stream_get_meta_data($handle);
+
+                fclose($handle);
+
+                $processedHeaders = array();
+                if ( isset( $meta['wrapper_data']['headers'] ) )
+                        $processedHeaders = WP_Http::processHeaders($meta['wrapper_data']['headers']);
+                else
+                        $processedHeaders = WP_Http::processHeaders($meta['wrapper_data']);
+
+                if ( ! empty( $strResponse ) && isset( $processedHeaders['headers']['transfer-encoding'] ) && 'chunked' == $processedHeaders['headers']['transfer-encoding'] )
+                        $strResponse = WP_Http::chunkTransferDecode($strResponse);
+
+                if ( true === $r['decompress'] && true === WP_Http_Encoding::should_decode($processedHeaders['headers']) )
+                        $strResponse = WP_Http_Encoding::decompress( $strResponse );
+
+                return array('headers' => $processedHeaders['headers'], 'body' => $strResponse, 'response' => $processedHeaders['response'], 'cookies' => $processedHeaders['cookies']);
+        }
+
+        /**
+         * Whether this class can be used for retrieving an URL.
+         *
+         * @static
+         * @access public
+         * @since 2.7.0
+         *
+         * @return boolean False means this class can not be used, true means it can.
+         */
+        function test($args = array()) {
+                if ( ! function_exists('fopen') || (function_exists('ini_get') && true != ini_get('allow_url_fopen')) )
+                        return false;
+
+                if ( version_compare(PHP_VERSION, '5.0', '<') )
+                        return false;
+
+                //HTTPS via Proxy was added in 5.1.0
+                $is_ssl = isset($args['ssl']) && $args['ssl'];
+                if ( $is_ssl && version_compare(PHP_VERSION, '5.1.0', '<') ) {
+                        $proxy = new WP_HTTP_Proxy();
+                        /**
+                         * No URL check, as its not currently passed to the ::test() function
+                         * In the case where a Proxy is in use, Just bypass this transport for HTTPS.
+                         */
+                        if ( $proxy->is_enabled() )
+                                return false;
+                }
+
+                return apply_filters('use_streams_transport', true, $args);
+        }
+}
+
+/**
+ * HTTP request method uses HTTP extension to retrieve the url.
+ *
+ * Requires the HTTP extension to be installed. This would be the preferred transport since it can
+ * handle a lot of the problems that forces the others to use the HTTP version 1.0. Even if PHP 5.2+
+ * is being used, it doesn't mean that the HTTP extension will be enabled.
+ *
+ * @package WordPress
+ * @subpackage HTTP
+ * @since 2.7.0
+ */
+class WP_Http_ExtHTTP {
+        /**
+         * Send a HTTP request to a URI using HTTP extension.
+         *
+         * Does not support non-blocking.
+         *
+         * @access public
+         * @since 2.7
+         *
+         * @param string $url
+         * @param str|array $args Optional. Override the defaults.
+         * @return array 'headers', 'body', 'cookies' and 'response' keys.
+         */
+        function request($url, $args = array()) {
+                $defaults = array(
+                        'method' => 'GET', 'timeout' => 5,
+                        'redirection' => 5, 'httpversion' => '1.0',
+                        'blocking' => true,
+                        'headers' => array(), 'body' => null, 'cookies' => array()
+                );
+
+                $r = wp_parse_args( $args, $defaults );
+
+                if ( isset($r['headers']['User-Agent']) ) {
+                        $r['user-agent'] = $r['headers']['User-Agent'];
+                        unset($r['headers']['User-Agent']);
+                } else if( isset($r['headers']['user-agent']) ) {
+                        $r['user-agent'] = $r['headers']['user-agent'];
+                        unset($r['headers']['user-agent']);
+                }
+
+                // Construct Cookie: header if any cookies are set
+                WP_Http::buildCookieHeader( $r );
+
+                switch ( $r['method'] ) {
+                        case 'POST':
+                                $r['method'] = HTTP_METH_POST;
+                                break;
+                        case 'HEAD':
+                                $r['method'] = HTTP_METH_HEAD;
+                                break;
+                        case 'PUT':
+                                $r['method'] =  HTTP_METH_PUT;
+                                break;
+                        case 'GET':
+                        default:
+                                $r['method'] = HTTP_METH_GET;
+                }
+
+                $arrURL = parse_url($url);
+
+                if ( 'http' != $arrURL['scheme'] || 'https' != $arrURL['scheme'] )
+                        $url = preg_replace('|^' . preg_quote($arrURL['scheme'], '|') . '|', 'http', $url);
+
+                $is_local = isset($args['local']) && $args['local'];
+                $ssl_verify = isset($args['sslverify']) && $args['sslverify'];
+                if ( $is_local )
+                        $ssl_verify = apply_filters('https_local_ssl_verify', $ssl_verify);
+                elseif ( ! $is_local )
+                        $ssl_verify = apply_filters('https_ssl_verify', $ssl_verify);
+
+                $r['timeout'] = (int) ceil( $r['timeout'] );
+
+                $options = array(
+                        'timeout' => $r['timeout'],
+                        'connecttimeout' => $r['timeout'],
+                        'redirect' => $r['redirection'],
+                        'useragent' => $r['user-agent'],
+                        'headers' => $r['headers'],
+                        'ssl' => array(
+                                'verifypeer' => $ssl_verify,
+                                'verifyhost' => $ssl_verify
+                        )
+                );
+
+                if ( HTTP_METH_HEAD == $r['method'] )
+                        $options['redirect'] = 0; // Assumption: Docs seem to suggest that this means do not follow. Untested.
+
+                // The HTTP extensions offers really easy proxy support.
+                $proxy = new WP_HTTP_Proxy();
+
+                if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) {
+                        $options['proxyhost'] = $proxy->host();
+                        $options['proxyport'] = $proxy->port();
+                        $options['proxytype'] = HTTP_PROXY_HTTP;
+
+                        if ( $proxy->use_authentication() ) {
+                                $options['proxyauth'] = $proxy->authentication();
+                                $options['proxyauthtype'] = HTTP_AUTH_BASIC;
+                        }
+                }
+
+                if ( !WP_DEBUG ) //Emits warning level notices for max redirects and timeouts
+                        $strResponse = @http_request($r['method'], $url, $r['body'], $options, $info);
+                else
+                        $strResponse = http_request($r['method'], $url, $r['body'], $options, $info); //Emits warning level notices for max redirects and timeouts
+
+                // Error may still be set, Response may return headers or partial document, and error
+                // contains a reason the request was aborted, eg, timeout expired or max-redirects reached.
+                if ( false === $strResponse || ! empty($info['error']) )
+                        return new WP_Error('http_request_failed', $info['response_code'] . ': ' . $info['error']);
+
+                if ( ! $r['blocking'] )
+                        return array( 'headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array() );
+
+                list($theHeaders, $theBody) = explode("\r\n\r\n", $strResponse, 2);
+                $theHeaders = WP_Http::processHeaders($theHeaders);
+
+                if ( ! empty( $theBody ) && isset( $theHeaders['headers']['transfer-encoding'] ) && 'chunked' == $theHeaders['headers']['transfer-encoding'] ) {
+                        if ( !WP_DEBUG )
+                                $theBody = @http_chunked_decode($theBody);
+                        else
+                                $theBody = http_chunked_decode($theBody);
+                }
+
+                if ( true === $r['decompress'] && true === WP_Http_Encoding::should_decode($theHeaders['headers']) )
+                        $theBody = http_inflate( $theBody );
+
+                $theResponse = array();
+                $theResponse['code'] = $info['response_code'];
+                $theResponse['message'] = get_status_header_desc($info['response_code']);
+
+                return array('headers' => $theHeaders['headers'], 'body' => $theBody, 'response' => $theResponse, 'cookies' => $theHeaders['cookies']);
+        }
+
+        /**
+         * Whether this class can be used for retrieving an URL.
+         *
+         * @static
+         * @since 2.7.0
+         *
+         * @return boolean False means this class can not be used, true means it can.
+         */
+        function test($args = array()) {
+                return apply_filters('use_http_extension_transport', function_exists('http_request'), $args );
+        }
+}
+
+/**
+ * HTTP request method uses Curl extension to retrieve the url.
+ *
+ * Requires the Curl extension to be installed.
+ *
+ * @package WordPress
+ * @subpackage HTTP
+ * @since 2.7
+ */
+class WP_Http_Curl {
+
+        /**
+         * Send a HTTP request to a URI using cURL extension.
+         *
+         * @access public
+         * @since 2.7.0
+         *
+         * @param string $url
+         * @param str|array $args Optional. Override the defaults.
+         * @return array 'headers', 'body', 'cookies' and 'response' keys.
+         */
+        function request($url, $args = array()) {
+                $defaults = array(
+                        'method' => 'GET', 'timeout' => 5,
+                        'redirection' => 5, 'httpversion' => '1.0',
+                        'blocking' => true,
+                        'headers' => array(), 'body' => null, 'cookies' => array()
+                );
+
+                $r = wp_parse_args( $args, $defaults );
+
+                if ( isset($r['headers']['User-Agent']) ) {
+                        $r['user-agent'] = $r['headers']['User-Agent'];
+                        unset($r['headers']['User-Agent']);
+                } else if( isset($r['headers']['user-agent']) ) {
+                        $r['user-agent'] = $r['headers']['user-agent'];
+                        unset($r['headers']['user-agent']);
+                }
+
+                // Construct Cookie: header if any cookies are set.
+                WP_Http::buildCookieHeader( $r );
+
+                $handle = curl_init();
+
+                // cURL offers really easy proxy support.
+                $proxy = new WP_HTTP_Proxy();
+
+                if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) {
+
+                        $isPHP5 = version_compare(PHP_VERSION, '5.0.0', '>=');
+
+                        if ( $isPHP5 ) {
+                                curl_setopt( $handle, CURLOPT_PROXYTYPE, CURLPROXY_HTTP );
+                                curl_setopt( $handle, CURLOPT_PROXY, $proxy->host() );
+                                curl_setopt( $handle, CURLOPT_PROXYPORT, $proxy->port() );
+                        } else {
+                                curl_setopt( $handle, CURLOPT_PROXY, $proxy->host() .':'. $proxy->port() );
+                        }
+
+                        if ( $proxy->use_authentication() ) {
+                                if ( $isPHP5 )
+                                        curl_setopt( $handle, CURLOPT_PROXYAUTH, CURLAUTH_BASIC );
+
+                                curl_setopt( $handle, CURLOPT_PROXYUSERPWD, $proxy->authentication() );
+                        }
+                }
+
+                $is_local = isset($args['local']) && $args['local'];
+                $ssl_verify = isset($args['sslverify']) && $args['sslverify'];
+                if ( $is_local )
+                        $ssl_verify = apply_filters('https_local_ssl_verify', $ssl_verify);
+                elseif ( ! $is_local )
+                        $ssl_verify = apply_filters('https_ssl_verify', $ssl_verify);
+
+
+                // CURLOPT_TIMEOUT and CURLOPT_CONNECTTIMEOUT expect integers.  Have to use ceil since
+                // a value of 0 will allow an ulimited timeout.
+                $timeout = (int) ceil( $r['timeout'] );
+                curl_setopt( $handle, CURLOPT_CONNECTTIMEOUT, $timeout );
+                curl_setopt( $handle, CURLOPT_TIMEOUT, $timeout );
+
+                curl_setopt( $handle, CURLOPT_URL, $url);
+                curl_setopt( $handle, CURLOPT_RETURNTRANSFER, true );
+                curl_setopt( $handle, CURLOPT_SSL_VERIFYHOST, $ssl_verify );
+                curl_setopt( $handle, CURLOPT_SSL_VERIFYPEER, $ssl_verify );
+                curl_setopt( $handle, CURLOPT_USERAGENT, $r['user-agent'] );
+                curl_setopt( $handle, CURLOPT_MAXREDIRS, $r['redirection'] );
+
+                switch ( $r['method'] ) {
+                        case 'HEAD':
+                                curl_setopt( $handle, CURLOPT_NOBODY, true );
+                                break;
+                        case 'POST':
+                                curl_setopt( $handle, CURLOPT_POST, true );
+                                curl_setopt( $handle, CURLOPT_POSTFIELDS, $r['body'] );
+                                break;
+                        case 'PUT':
+                                curl_setopt( $handle, CURLOPT_CUSTOMREQUEST, 'PUT' );
+                                curl_setopt( $handle, CURLOPT_POSTFIELDS, $r['body'] );
+                                break;
+                }
+
+                if ( true === $r['blocking'] )
+                        curl_setopt( $handle, CURLOPT_HEADER, true );
+                else
+                        curl_setopt( $handle, CURLOPT_HEADER, false );
+
+                // The option doesn't work with safe mode or when open_basedir is set.
+                // Disable HEAD when making HEAD requests.
+                if ( !ini_get('safe_mode') && !ini_get('open_basedir') && 'HEAD' != $r['method'] )
+                        curl_setopt( $handle, CURLOPT_FOLLOWLOCATION, true );
+
+                if ( !empty( $r['headers'] ) ) {
+                        // cURL expects full header strings in each element
+                        $headers = array();
+                        foreach ( $r['headers'] as $name => $value ) {
+                                $headers[] = "{$name}: $value";
+                        }
+                        curl_setopt( $handle, CURLOPT_HTTPHEADER, $headers );
+                }
+
+                if ( $r['httpversion'] == '1.0' )
+                        curl_setopt( $handle, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0 );
+                else
+                        curl_setopt( $handle, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1 );
+
+                // Cookies are not handled by the HTTP API currently. Allow for plugin authors to handle it
+                // themselves... Although, it is somewhat pointless without some reference.
+                do_action_ref_array( 'http_api_curl', array(&$handle) );
+
+                // We don't need to return the body, so don't. Just execute request and return.
+                if ( ! $r['blocking'] ) {
+                        curl_exec( $handle );
+                        curl_close( $handle );
+                        return array( 'headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array() );
+                }
+
+                $theResponse = curl_exec( $handle );
+
+                if ( !empty($theResponse) ) {
+                        $headerLength = curl_getinfo($handle, CURLINFO_HEADER_SIZE);
+                        $theHeaders = trim( substr($theResponse, 0, $headerLength) );
+                        if ( strlen($theResponse) > $headerLength )
+                                $theBody = substr( $theResponse, $headerLength );
+                        else
+                                $theBody = '';
+                        if ( false !== strrpos($theHeaders, "\r\n\r\n") ) {
+                                $headerParts = explode("\r\n\r\n", $theHeaders);
+                                $theHeaders = $headerParts[ count($headerParts) -1 ];
+                        }
+                        $theHeaders = WP_Http::processHeaders($theHeaders);
+                } else {
+                        if ( $curl_error = curl_error($handle) )
+                                return new WP_Error('http_request_failed', $curl_error);
+                        if ( in_array( curl_getinfo( $handle, CURLINFO_HTTP_CODE ), array(301, 302) ) )
+                                return new WP_Error('http_request_failed', __('Too many redirects.'));
+
+                        $theHeaders = array( 'headers' => array(), 'cookies' => array() );
+                        $theBody = '';
+                }
+
+                $response = array();
+                $response['code'] = curl_getinfo( $handle, CURLINFO_HTTP_CODE );
+                $response['message'] = get_status_header_desc($response['code']);
+
+                curl_close( $handle );
+
+                // See #11305 - When running under safe mode, redirection is disabled above. Handle it manually.
+                if ( !empty($theHeaders['headers']['location']) && (ini_get('safe_mode') || ini_get('open_basedir')) ) {
+                        if ( $r['redirection']-- > 0 ) {
+                                return $this->request($theHeaders['headers']['location'], $r);
+                        } else {
+                                return new WP_Error('http_request_failed', __('Too many redirects.'));
+                        }
+                }
+
+                if ( true === $r['decompress'] && true === WP_Http_Encoding::should_decode($theHeaders['headers']) )
+                        $theBody = WP_Http_Encoding::decompress( $theBody );
+
+                return array('headers' => $theHeaders['headers'], 'body' => $theBody, 'response' => $response, 'cookies' => $theHeaders['cookies']);
+        }
+
+        /**
+         * Whether this class can be used for retrieving an URL.
+         *
+         * @static
+         * @since 2.7.0
+         *
+         * @return boolean False means this class can not be used, true means it can.
+         */
+        function test($args = array()) {
+                if ( function_exists('curl_init') && function_exists('curl_exec') )
+                        return apply_filters('use_curl_transport', true, $args);
+
+                return false;
+        }
+}
+
+/**
+ * Adds Proxy support to the WordPress HTTP API.
+ *
+ * There are caveats to proxy support. It requires that defines be made in the wp-config.php file to
+ * enable proxy support. There are also a few filters that plugins can hook into for some of the
+ * constants.
+ *
+ * The constants are as follows:
+ * <ol>
+ * <li>WP_PROXY_HOST - Enable proxy support and host for connecting.</li>
+ * <li>WP_PROXY_PORT - Proxy port for connection. No default, must be defined.</li>
+ * <li>WP_PROXY_USERNAME - Proxy username, if it requires authentication.</li>
+ * <li>WP_PROXY_PASSWORD - Proxy password, if it requires authentication.</li>
+ * <li>WP_PROXY_BYPASS_HOSTS - Will prevent the hosts in this list from going through the proxy.
+ * You do not need to have localhost and the blog host in this list, because they will not be passed
+ * through the proxy. The list should be presented in a comma separated list</li>
+ * </ol>
+ *
+ * An example can be as seen below.
+ * <code>
+ * define('WP_PROXY_HOST', '192.168.84.101');
+ * define('WP_PROXY_PORT', '8080');
+ * define('WP_PROXY_BYPASS_HOSTS', 'localhost, www.example.com');
+ * </code>
+ *
+ * @link http://core.trac.wordpress.org/ticket/4011 Proxy support ticket in WordPress.
+ * @since 2.8
+ */
+class WP_HTTP_Proxy {
+
+        /**
+         * Whether proxy connection should be used.
+         *
+         * @since 2.8
+         * @use WP_PROXY_HOST
+         * @use WP_PROXY_PORT
+         *
+         * @return bool
+         */
+        function is_enabled() {
+                return defined('WP_PROXY_HOST') && defined('WP_PROXY_PORT');
+        }
+
+        /**
+         * Whether authentication should be used.
+         *
+         * @since 2.8
+         * @use WP_PROXY_USERNAME
+         * @use WP_PROXY_PASSWORD
+         *
+         * @return bool
+         */
+        function use_authentication() {
+                return defined('WP_PROXY_USERNAME') && defined('WP_PROXY_PASSWORD');
+        }
+
+        /**
+         * Retrieve the host for the proxy server.
+         *
+         * @since 2.8
+         *
+         * @return string
+         */
+        function host() {
+                if ( defined('WP_PROXY_HOST') )
+                        return WP_PROXY_HOST;
+
+                return '';
+        }
+
+        /**
+         * Retrieve the port for the proxy server.
+         *
+         * @since 2.8
+         *
+         * @return string
+         */
+        function port() {
+                if ( defined('WP_PROXY_PORT') )
+                        return WP_PROXY_PORT;
+
+                return '';
+        }
+
+        /**
+         * Retrieve the username for proxy authentication.
+         *
+         * @since 2.8
+         *
+         * @return string
+         */
+        function username() {
+                if ( defined('WP_PROXY_USERNAME') )
+                        return WP_PROXY_USERNAME;
+
+                return '';
+        }
+
+        /**
+         * Retrieve the password for proxy authentication.
+         *
+         * @since 2.8
+         *
+         * @return string
+         */
+        function password() {
+                if ( defined('WP_PROXY_PASSWORD') )
+                        return WP_PROXY_PASSWORD;
+
+                return '';
+        }
+
+        /**
+         * Retrieve authentication string for proxy authentication.
+         *
+         * @since 2.8
+         *
+         * @return string
+         */
+        function authentication() {
+                return $this->username() . ':' . $this->password();
+        }
+
+        /**
+         * Retrieve header string for proxy authentication.
+         *
+         * @since 2.8
+         *
+         * @return string
+         */
+        function authentication_header() {
+                return 'Proxy-Authentication: Basic ' . base64_encode( $this->authentication() );
+        }
+
+        /**
+         * Whether URL should be sent through the proxy server.
+         *
+         * We want to keep localhost and the blog URL from being sent through the proxy server, because
+         * some proxies can not handle this. We also have the constant available for defining other
+         * hosts that won't be sent through the proxy.
+         *
+         * @uses WP_PROXY_BYPASS_HOSTS
+         * @since unknown
+         *
+         * @param string $uri URI to check.
+         * @return bool True, to send through the proxy and false if, the proxy should not be used.
+         */
+        function send_through_proxy( $uri ) {
+                // parse_url() only handles http, https type URLs, and will emit E_WARNING on failure.
+                // This will be displayed on blogs, which is not reasonable.
+                $check = @parse_url($uri);
+
+                // Malformed URL, can not process, but this could mean ssl, so let through anyway.
+                if ( $check === false )
+                        return true;
+
+                $home = parse_url( get_option('siteurl') );
+
+                if ( $check['host'] == 'localhost' || $check['host'] == $home['host'] )
+                        return false;
+
+                if ( !defined('WP_PROXY_BYPASS_HOSTS') )
+                        return true;
+
+                static $bypass_hosts;
+                if ( null == $bypass_hosts )
+                        $bypass_hosts = preg_split('|,\s*|', WP_PROXY_BYPASS_HOSTS);
+
+                return !in_array( $check['host'], $bypass_hosts );
+        }
+}
+/**
+ * Internal representation of a single cookie.
+ *
+ * Returned cookies are represented using this class, and when cookies are set, if they are not
+ * already a WP_Http_Cookie() object, then they are turned into one.
+ *
+ * @todo The WordPress convention is to use underscores instead of camelCase for function and method
+ * names. Need to switch to use underscores instead for the methods.
+ *
+ * @package WordPress
+ * @subpackage HTTP
+ * @since 2.8.0
+ * @author Beau Lebens
+ */
+class WP_Http_Cookie {
+
+        /**
+         * Cookie name.
+         *
+         * @since 2.8.0
+         * @var string
+         */
+        var $name;
+
+        /**
+         * Cookie value.
+         *
+         * @since 2.8.0
+         * @var string
+         */
+        var $value;
+
+        /**
+         * When the cookie expires.
+         *
+         * @since 2.8.0
+         * @var string
+         */
+        var $expires;
+
+        /**
+         * Cookie URL path.
+         *
+         * @since 2.8.0
+         * @var string
+         */
+        var $path;
+
+        /**
+         * Cookie Domain.
+         *
+         * @since 2.8.0
+         * @var string
+         */
+        var $domain;
+
+        /**
+         * PHP4 style Constructor - Calls PHP5 Style Constructor.
+         *
+         * @access public
+         * @since 2.8.0
+         * @param string|array $data Raw cookie data.
+         */
+        function WP_Http_Cookie( $data ) {
+                $this->__construct( $data );
+        }
+
+        /**
+         * Sets up this cookie object.
+         *
+         * The parameter $data should be either an associative array containing the indices names below
+         * or a header string detailing it.
+         *
+         * If it's an array, it should include the following elements:
+         * <ol>
+         * <li>Name</li>
+         * <li>Value - should NOT be urlencoded already.</li>
+         * <li>Expires - (optional) String or int (UNIX timestamp).</li>
+         * <li>Path (optional)</li>
+         * <li>Domain (optional)</li>
+         * </ol>
+         *
+         * @access public
+         * @since 2.8.0
+         *
+         * @param string|array $data Raw cookie data.
+         */
+        function __construct( $data ) {
+                if ( is_string( $data ) ) {
+                        // Assume it's a header string direct from a previous request
+                        $pairs = explode( ';', $data );
+
+                        // Special handling for first pair; name=value. Also be careful of "=" in value
+                        $name  = trim( substr( $pairs[0], 0, strpos( $pairs[0], '=' ) ) );
+                        $value = substr( $pairs[0], strpos( $pairs[0], '=' ) + 1 );
+                        $this->name  = $name;
+                        $this->value = urldecode( $value );
+                        array_shift( $pairs ); //Removes name=value from items.
+
+                        // Set everything else as a property
+                        foreach ( $pairs as $pair ) {
+                                if ( empty($pair) ) //Handles the cookie ending in ; which results in a empty final pair
+                                        continue;
+
+                                list( $key, $val ) = explode( '=', $pair );
+                                $key = strtolower( trim( $key ) );
+                                if ( 'expires' == $key )
+                                        $val = strtotime( $val );
+                                $this->$key = $val;
+                        }
+                } else {
+                        if ( !isset( $data['name'] ) )
+                                return false;
+
+                        // Set properties based directly on parameters
+                        $this->name   = $data['name'];
+                        $this->value  = isset( $data['value'] ) ? $data['value'] : '';
+                        $this->path   = isset( $data['path'] ) ? $data['path'] : '';
+                        $this->domain = isset( $data['domain'] ) ? $data['domain'] : '';
+
+                        if ( isset( $data['expires'] ) )
+                                $this->expires = is_int( $data['expires'] ) ? $data['expires'] : strtotime( $data['expires'] );
+                        else
+                                $this->expires = null;
+                }
+        }
+
+        /**
+         * Confirms that it's OK to send this cookie to the URL checked against.
+         *
+         * Decision is based on RFC 2109/2965, so look there for details on validity.
+         *
+         * @access public
+         * @since 2.8.0
+         *
+         * @param string $url URL you intend to send this cookie to
+         * @return boolean TRUE if allowed, FALSE otherwise.
+         */
+        function test( $url ) {
+                // Expires - if expired then nothing else matters
+                if ( time() > $this->expires )
+                        return false;
+
+                // Get details on the URL we're thinking about sending to
+                $url = parse_url( $url );
+                $url['port'] = isset( $url['port'] ) ? $url['port'] : 80;
+                $url['path'] = isset( $url['path'] ) ? $url['path'] : '/';
+
+                // Values to use for comparison against the URL
+                $path   = isset( $this->path )   ? $this->path   : '/';
+                $port   = isset( $this->port )   ? $this->port   : 80;
+                $domain = isset( $this->domain ) ? strtolower( $this->domain ) : strtolower( $url['host'] );
+                if ( false === stripos( $domain, '.' ) )
+                        $domain .= '.local';
+
+                // Host - very basic check that the request URL ends with the domain restriction (minus leading dot)
+                $domain = substr( $domain, 0, 1 ) == '.' ? substr( $domain, 1 ) : $domain;
+                if ( substr( $url['host'], -strlen( $domain ) ) != $domain )
+                        return false;
+
+                // Port - supports "port-lists" in the format: "80,8000,8080"
+                if ( !in_array( $url['port'], explode( ',', $port) ) )
+                        return false;
+
+                // Path - request path must start with path restriction
+                if ( substr( $url['path'], 0, strlen( $path ) ) != $path )
+                        return false;
+
+                return true;
+        }
+
+        /**
+         * Convert cookie name and value back to header string.
+         *
+         * @access public
+         * @since 2.8.0
+         *
+         * @return string Header encoded cookie name and value.
+         */
+        function getHeaderValue() {
+                if ( empty( $this->name ) || empty( $this->value ) )
+                        return '';
+
+                return $this->name . '=' . urlencode( $this->value );
+        }
+
+        /**
+         * Retrieve cookie header for usage in the rest of the WordPress HTTP API.
+         *
+         * @access public
+         * @since 2.8.0
+         *
+         * @return string
+         */
+        function getFullHeader() {
+                return 'Cookie: ' . $this->getHeaderValue();
+        }
+}
+
+/**
+ * Implementation for deflate and gzip transfer encodings.
+ *
+ * Includes RFC 1950, RFC 1951, and RFC 1952.
+ *
+ * @since 2.8
+ * @package WordPress
+ * @subpackage HTTP
+ */
+class WP_Http_Encoding {
+
+        /**
+         * Compress raw string using the deflate format.
+         *
+         * Supports the RFC 1951 standard.
+         *
+         * @since 2.8
+         *
+         * @param string $raw String to compress.
+         * @param int $level Optional, default is 9. Compression level, 9 is highest.
+         * @param string $supports Optional, not used. When implemented it will choose the right compression based on what the server supports.
+         * @return string|bool False on failure.
+         */
+        function compress( $raw, $level = 9, $supports = null ) {
+                return gzdeflate( $raw, $level );
+        }
+
+        /**
+         * Decompression of deflated string.
+         *
+         * Will attempt to decompress using the RFC 1950 standard, and if that fails
+         * then the RFC 1951 standard deflate will be attempted. Finally, the RFC
+         * 1952 standard gzip decode will be attempted. If all fail, then the
+         * original compressed string will be returned.
+         *
+         * @since 2.8
+         *
+         * @param string $compressed String to decompress.
+         * @param int $length The optional length of the compressed data.
+         * @return string|bool False on failure.
+         */
+        function decompress( $compressed, $length = null ) {
+
+                if ( empty($compressed) )
+                        return $compressed;
+
+                if ( false !== ( $decompressed = @gzinflate( $compressed ) ) )
+                        return $decompressed;
+
+                if ( false !== ( $decompressed = WP_Http_Encoding::compatible_gzinflate( $compressed ) ) )
+                        return $decompressed;
+
+                if ( false !== ( $decompressed = @gzuncompress( $compressed ) ) )
+                        return $decompressed;
+
+                if ( function_exists('gzdecode') ) {
+                        $decompressed = @gzdecode( $compressed );
+
+                        if ( false !== $decompressed )
+                                return $decompressed;
+                }
+
+                return $compressed;
+        }
+
+        /**
+         * Decompression of deflated string while staying compatible with the majority of servers.
+         *
+         * Certain Servers will return deflated data with headers which PHP's gziniflate()
+         * function cannot handle out of the box. The following function lifted from
+         * http://au2.php.net/manual/en/function.gzinflate.php#77336 will attempt to deflate
+         * the various return forms used.
+         *
+         * @since 2.8.1
+         * @link http://au2.php.net/manual/en/function.gzinflate.php#77336
+         *
+         * @param string $gzData String to decompress.
+         * @return string|bool False on failure.
+         */
+        function compatible_gzinflate($gzData) {
+                if ( substr($gzData, 0, 3) == "\x1f\x8b\x08" ) {
+                        $i = 10;
+                        $flg = ord( substr($gzData, 3, 1) );
+                        if ( $flg > 0 ) {
+                                if ( $flg & 4 ) {
+                                        list($xlen) = unpack('v', substr($gzData, $i, 2) );
+                                        $i = $i + 2 + $xlen;
+                                }
+                                if ( $flg & 8 )
+                                        $i = strpos($gzData, "\0", $i) + 1;
+                                if ( $flg & 16 )
+                                        $i = strpos($gzData, "\0", $i) + 1;
+                                if ( $flg & 2 )
+                                        $i = $i + 2;
+                        }
+                        return gzinflate( substr($gzData, $i, -8) );
+                } else {
+                        return false;
+                }
+        }
+
+        /**
+         * What encoding types to accept and their priority values.
+         *
+         * @since 2.8
+         *
+         * @return string Types of encoding to accept.
+         */
+        function accept_encoding() {
+                $type = array();
+                if ( function_exists( 'gzinflate' ) )
+                        $type[] = 'deflate;q=1.0';
+
+                if ( function_exists( 'gzuncompress' ) )
+                        $type[] = 'compress;q=0.5';
+
+                if ( function_exists( 'gzdecode' ) )
+                        $type[] = 'gzip;q=0.5';
+
+                return implode(', ', $type);
+        }
+
+        /**
+         * What enconding the content used when it was compressed to send in the headers.
+         *
+         * @since 2.8
+         *
+         * @return string Content-Encoding string to send in the header.
+         */
+        function content_encoding() {
+                return 'deflate';
+        }
+
+        /**
+         * Whether the content be decoded based on the headers.
+         *
+         * @since 2.8
+         *
+         * @param array|string $headers All of the available headers.
+         * @return bool
+         */
+        function should_decode($headers) {
+                if ( is_array( $headers ) ) {
+                        if ( array_key_exists('content-encoding', $headers) && ! empty( $headers['content-encoding'] ) )
+                                return true;
+                } else if ( is_string( $headers ) ) {
+                        return ( stripos($headers, 'content-encoding:') !== false );
+                }
+
+                return false;
+        }
+
+        /**
+         * Whether decompression and compression are supported by the PHP version.
+         *
+         * Each function is tested instead of checking for the zlib extension, to
+         * ensure that the functions all exist in the PHP version and aren't
+         * disabled.
+         *
+         * @since 2.8
+         *
+         * @return bool
+         */
+        function is_available() {
+                return ( function_exists('gzuncompress') || function_exists('gzdeflate') || function_exists('gzinflate') );
+        }
+}
+
+?>

wp-includes/functions.http.php

@@ +1 @@
+<?php
+/**
+ * Returns the initialized WP_Http Object
+ *
+ * @since 2.7.0
+ * @access private
+ *
+ * @return WP_Http HTTP Transport object.
+ */
+function &_wp_http_get_object() {
+        static $http;
+
+        if ( is_null($http) ) {
+                require_once(ABSPATH . WPINC . '/class.http.php');
+                $http = new WP_Http();
+        }
+
+        return $http;
+}
+
+/**
+ * Retrieve the raw response from the HTTP request.
+ *
+ * The array structure is a little complex.
+ *
+ * <code>
+ * $res = array( 'headers' => array(), 'response' => array('code' => int, 'message' => string) );
+ * </code>
+ *
+ * All of the headers in $res['headers'] are with the name as the key and the
+ * value as the value. So to get the User-Agent, you would do the following.
+ *
+ * <code>
+ * $user_agent = $res['headers']['user-agent'];
+ * </code>
+ *
+ * The body is the raw response content and can be retrieved from $res['body'].
+ *
+ * This function is called first to make the request and there are other API
+ * functions to abstract out the above convoluted setup.
+ *
+ * @since 2.7.0
+ *
+ * @param string $url Site URL to retrieve.
+ * @param array $args Optional. Override the defaults.
+ * @return WP_Error|array The response or WP_Error on failure.
+ */
+function wp_remote_request($url, $args = array()) {
+        $objFetchSite = _wp_http_get_object();
+        return $objFetchSite->request($url, $args);
+}
+
+/**
+ * Retrieve the raw response from the HTTP request using the GET method.
+ *
+ * @see wp_remote_request() For more information on the response array format.
+ *
+ * @since 2.7.0
+ *
+ * @param string $url Site URL to retrieve.
+ * @param array $args Optional. Override the defaults.
+ * @return WP_Error|array The response or WP_Error on failure.
+ */
+function wp_remote_get($url, $args = array()) {
+        $objFetchSite = _wp_http_get_object();
+        return $objFetchSite->get($url, $args);
+}
+
+/**
+ * Retrieve the raw response from the HTTP request using the POST method.
+ *
+ * @see wp_remote_request() For more information on the response array format.
+ *
+ * @since 2.7.0
+ *
+ * @param string $url Site URL to retrieve.
+ * @param array $args Optional. Override the defaults.
+ * @return WP_Error|array The response or WP_Error on failure.
+ */
+function wp_remote_post($url, $args = array()) {
+        $objFetchSite = _wp_http_get_object();
+        return $objFetchSite->post($url, $args);
+}
+
+/**
+ * Retrieve the raw response from the HTTP request using the HEAD method.
+ *
+ * @see wp_remote_request() For more information on the response array format.
+ *
+ * @since 2.7.0
+ *
+ * @param string $url Site URL to retrieve.
+ * @param array $args Optional. Override the defaults.
+ * @return WP_Error|array The response or WP_Error on failure.
+ */
+function wp_remote_head($url, $args = array()) {
+        $objFetchSite = _wp_http_get_object();
+        return $objFetchSite->head($url, $args);
+}
+
+/**
+ * Retrieve only the headers from the raw response.
+ *
+ * @since 2.7.0
+ *
+ * @param array $response HTTP response.
+ * @return array The headers of the response. Empty array if incorrect parameter given.
+ */
+function wp_remote_retrieve_headers(&$response) {
+        if ( is_wp_error($response) || ! isset($response['headers']) || ! is_array($response['headers']))
+                return array();
+
+        return $response['headers'];
+}
+
+/**
+ * Retrieve a single header by name from the raw response.
+ *
+ * @since 2.7.0
+ *
+ * @param array $response
+ * @param string $header Header name to retrieve value from.
+ * @return string The header value. Empty string on if incorrect parameter given, or if the header doesnt exist.
+ */
+function wp_remote_retrieve_header(&$response, $header) {
+        if ( is_wp_error($response) || ! isset($response['headers']) || ! is_array($response['headers']))
+                return '';
+
+        if ( array_key_exists($header, $response['headers']) )
+                return $response['headers'][$header];
+
+        return '';
+}
+
+/**
+ * Retrieve only the response code from the raw response.
+ *
+ * Will return an empty array if incorrect parameter value is given.
+ *
+ * @since 2.7.0
+ *
+ * @param array $response HTTP response.
+ * @return string the response code. Empty string on incorrect parameter given.
+ */
+function wp_remote_retrieve_response_code(&$response) {
+        if ( is_wp_error($response) || ! isset($response['response']) || ! is_array($response['response']))
+                return '';
+
+        return $response['response']['code'];
+}
+
+/**
+ * Retrieve only the response message from the raw response.
+ *
+ * Will return an empty array if incorrect parameter value is given.
+ *
+ * @since 2.7.0
+ *
+ * @param array $response HTTP response.
+ * @return string The response message. Empty string on incorrect parameter given.
+ */
+function wp_remote_retrieve_response_message(&$response) {
+        if ( is_wp_error($response) || ! isset($response['response']) || ! is_array($response['response']))
+                return '';
+
+        return $response['response']['message'];
+}
+
+/**
+ * Retrieve only the body from the raw response.
+ *
+ * @since 2.7.0
+ *
+ * @param array $response HTTP response.
+ * @return string The body of the response. Empty string if no body or incorrect parameter given.
+ */
+function wp_remote_retrieve_body(&$response) {
+        if ( is_wp_error($response) || ! isset($response['body']) )
+                return '';
+
+        return $response['body'];
+}
+
+?>

wp-settings.php

@@ -123 +123 @@
 require( ABSPATH . WPINC . '/canonical.php' );
 require( ABSPATH . WPINC . '/shortcodes.php' );
 require( ABSPATH . WPINC . '/media.php' );
-require( ABSPATH . WPINC . '/http.php' );
+require( ABSPATH . WPINC . '/functions.http.php' );
 require( ABSPATH . WPINC . '/widgets.php' );
 
 // Load multisite-specific files.

wp-admin/admin.php

@@ -39 +39 @@
                  */
                 $c = get_blog_count();
                 if ( $c <= 50 || ( $c > 50 && mt_rand( 0, (int)( $c / 50 ) ) == 1 ) ) {
-                        require_once( ABSPATH . WPINC . '/http.php' );
+                        require_once( ABSPATH . WPINC . '/functions.http.php' );
                         $response = wp_remote_get( admin_url( 'upgrade.php?step=1' ), array( 'timeout' => 120, 'httpversion' => '1.1' ) );
                         do_action( 'after_mu_upgrade', $response );
                         unset($response);

wp-admin/ms-upgrade-site.php

@@ -4 +4 @@
 if ( !is_multisite() )
         wp_die( __('Multisite support is not enabled.') );
 
-require_once( ABSPATH . WPINC . '/http.php' );
+require_once( ABSPATH . WPINC . '/functions.http.php' );
 
 $title = __('Upgrade Site');
 $parent_file = 'ms-admin.php';

wp-admin/setup-config.php

@@ -174 +174 @@
                 wp_die($wpdb->error->get_error_message());
 
         require_once( ABSPATH . WPINC . '/plugin.php' );
-        require_once( ABSPATH . WPINC . '/http.php' );
+        require_once( ABSPATH . WPINC . '/functions.http.php' );
         wp_fix_server_vars();
         /**#@+
          * @ignore

wp-includes/http.php

@@ -1 @@
-<?php
-/**
- * Simple and uniform HTTP request API.
- *
- * Will eventually replace and standardize the WordPress HTTP requests made.
- *
- * @link http://trac.wordpress.org/ticket/4779 HTTP API Proposal
- *
- * @package WordPress
- * @subpackage HTTP
- * @since 2.7.0
- * @author Jacob Santos <wordpress@santosj.name>
- */
-
-/**
- * WordPress HTTP Class for managing HTTP Transports and making HTTP requests.
- *
- * This class is called for the functionality of making HTTP requests and should replace Snoopy
- * functionality, eventually. There is no available functionality to add HTTP transport
- * implementations, since most of the HTTP transports are added and available for use.
- *
- * The exception is that cURL is not available as a transport and lacking an implementation. It will
- * be added later and should be a patch on the WordPress Trac.
- *
- * There are no properties, because none are needed and for performance reasons. Some of the
- * functions are static and while they do have some overhead over functions in PHP4, the purpose is
- * maintainability. When PHP5 is finally the requirement, it will be easy to add the static keyword
- * to the code. It is not as easy to convert a function to a method after enough code uses the old
- * way.
- *
- * Debugging includes several actions, which pass different variables for debugging the HTTP API.
- *
- * <strong>http_transport_get_debug</strong> - gives working, nonblocking, and blocking transports.
- *
- * <strong>http_transport_post_debug</strong> - gives working, nonblocking, and blocking transports.
- *
- * @package WordPress
- * @subpackage HTTP
- * @since 2.7.0
- */
-class WP_Http {
-
-        /**
-         * PHP4 style Constructor - Calls PHP5 Style Constructor
-         *
-         * @since 2.7.0
-         * @return WP_Http
-         */
-        function WP_Http() {
-                $this->__construct();
-        }
-
-        /**
-         * PHP5 style Constructor - Setup available transport if not available.
-         *
-         * PHP4 does not have the 'self' keyword and since WordPress supports PHP4,
-         * the class needs to be used for the static call.
-         *
-         * The transport are setup to save time. This should only be called once, so
-         * the overhead should be fine.
-         *
-         * @since 2.7.0
-         * @return WP_Http
-         */
-        function __construct() {
-                WP_Http::_getTransport();
-                WP_Http::_postTransport();
-        }
-
-        /**
-         * Tests the WordPress HTTP objects for an object to use and returns it.
-         *
-         * Tests all of the objects and returns the object that passes. Also caches
-         * that object to be used later.
-         *
-         * The order for the GET/HEAD requests are HTTP Extension, cURL, Streams, Fopen,
-         * and finally Fsockopen. fsockopen() is used last, because it has the most
-         * overhead in its implementation. There isn't any real way around it, since
-         * redirects have to be supported, much the same way the other transports
-         * also handle redirects.
-         *
-         * There are currently issues with "localhost" not resolving correctly with
-         * DNS. This may cause an error "failed to open stream: A connection attempt
-         * failed because the connected party did not properly respond after a
-         * period of time, or established connection failed because connected host
-         * has failed to respond."
-         *
-         * @since 2.7.0
-         * @access private
-         *
-         * @param array $args Request args, default us an empty array
-         * @return object|null Null if no transports are available, HTTP transport object.
-         */
-        function &_getTransport( $args = array() ) {
-                static $working_transport, $blocking_transport, $nonblocking_transport;
-
-                if ( is_null($working_transport) ) {
-                        if ( true === WP_Http_ExtHttp::test($args) ) {
-                                $working_transport['exthttp'] = new WP_Http_ExtHttp();
-                                $blocking_transport[] = &$working_transport['exthttp'];
-                        } else if ( true === WP_Http_Curl::test($args) ) {
-                                $working_transport['curl'] = new WP_Http_Curl();
-                                $blocking_transport[] = &$working_transport['curl'];
-                        } else if ( true === WP_Http_Streams::test($args) ) {
-                                $working_transport['streams'] = new WP_Http_Streams();
-                                $blocking_transport[] = &$working_transport['streams'];
-                        } else if ( true === WP_Http_Fopen::test($args) ) {
-                                $working_transport['fopen'] = new WP_Http_Fopen();
-                                $blocking_transport[] = &$working_transport['fopen'];
-                        } else if ( true === WP_Http_Fsockopen::test($args) ) {
-                                $working_transport['fsockopen'] = new WP_Http_Fsockopen();
-                                $blocking_transport[] = &$working_transport['fsockopen'];
-                        }
-
-                        foreach ( array('curl', 'streams', 'fopen', 'fsockopen', 'exthttp') as $transport ) {
-                                if ( isset($working_transport[$transport]) )
-                                        $nonblocking_transport[] = &$working_transport[$transport];
-                        }
-                }
-
-                do_action( 'http_transport_get_debug', $working_transport, $blocking_transport, $nonblocking_transport );
-
-                if ( isset($args['blocking']) && !$args['blocking'] )
-                        return $nonblocking_transport;
-                else
-                        return $blocking_transport;
-        }
-
-        /**
-         * Tests the WordPress HTTP objects for an object to use and returns it.
-         *
-         * Tests all of the objects and returns the object that passes. Also caches
-         * that object to be used later. This is for posting content to a URL and
-         * is used when there is a body. The plain Fopen Transport can not be used
-         * to send content, but the streams transport can. This is a limitation that
-         * is addressed here, by just not including that transport.
-         *
-         * @since 2.7.0
-         * @access private
-         *
-         * @param array $args Request args, default us an empty array
-         * @return object|null Null if no transports are available, HTTP transport object.
-         */
-        function &_postTransport( $args = array() ) {
-                static $working_transport, $blocking_transport, $nonblocking_transport;
-
-                if ( is_null($working_transport) ) {
-                        if ( true === WP_Http_ExtHttp::test($args) ) {
-                                $working_transport['exthttp'] = new WP_Http_ExtHttp();
-                                $blocking_transport[] = &$working_transport['exthttp'];
-                        } else if ( true === WP_Http_Curl::test($args) ) {
-                                $working_transport['curl'] = new WP_Http_Curl();
-                                $blocking_transport[] = &$working_transport['curl'];
-                        } else if ( true === WP_Http_Streams::test($args) ) {
-                                $working_transport['streams'] = new WP_Http_Streams();
-                                $blocking_transport[] = &$working_transport['streams'];
-                        } else if ( true === WP_Http_Fsockopen::test($args) ) {
-                                $working_transport['fsockopen'] = new WP_Http_Fsockopen();
-                                $blocking_transport[] = &$working_transport['fsockopen'];
-                        }
-
-                        foreach ( array('curl', 'streams', 'fsockopen', 'exthttp') as $transport ) {
-                                if ( isset($working_transport[$transport]) )
-                                        $nonblocking_transport[] = &$working_transport[$transport];
-                        }
-                }
-
-                do_action( 'http_transport_post_debug', $working_transport, $blocking_transport, $nonblocking_transport );
-
-                if ( isset($args['blocking']) && !$args['blocking'] )
-                        return $nonblocking_transport;
-                else
-                        return $blocking_transport;
-        }
-
-        /**
-         * Send a HTTP request to a URI.
-         *
-         * The body and headers are part of the arguments. The 'body' argument is for the body and will
-         * accept either a string or an array. The 'headers' argument should be an array, but a string
-         * is acceptable. If the 'body' argument is an array, then it will automatically be escaped
-         * using http_build_query().
-         *
-         * The only URI that are supported in the HTTP Transport implementation are the HTTP and HTTPS
-         * protocols. HTTP and HTTPS are assumed so the server might not know how to handle the send
-         * headers. Other protocols are unsupported and most likely will fail.
-         *
-         * The defaults are 'method', 'timeout', 'redirection', 'httpversion', 'blocking' and
-         * 'user-agent'.
-         *
-         * Accepted 'method' values are 'GET', 'POST', and 'HEAD', some transports technically allow
-         * others, but should not be assumed. The 'timeout' is used to sent how long the connection
-         * should stay open before failing when no response. 'redirection' is used to track how many
-         * redirects were taken and used to sent the amount for other transports, but not all transports
-         * accept setting that value.
-         *
-         * The 'httpversion' option is used to sent the HTTP version and accepted values are '1.0', and
-         * '1.1' and should be a string. Version 1.1 is not supported, because of chunk response. The
-         * 'user-agent' option is the user-agent and is used to replace the default user-agent, which is
-         * 'WordPress/WP_Version', where WP_Version is the value from $wp_version.
-         *
-         * 'blocking' is the default, which is used to tell the transport, whether it should halt PHP
-         * while it performs the request or continue regardless. Actually, that isn't entirely correct.
-         * Blocking mode really just means whether the fread should just pull what it can whenever it
-         * gets bytes or if it should wait until it has enough in the buffer to read or finishes reading
-         * the entire content. It doesn't actually always mean that PHP will continue going after making
-         * the request.
-         *
-         * @access public
-         * @since 2.7.0
-         * @todo Refactor this code. The code in this method extends the scope of its original purpose
-         *              and should be refactored to allow for cleaner abstraction and reduce duplication of the
-         *              code. One suggestion is to create a class specifically for the arguments, however
-         *              preliminary refactoring to this affect has affect more than just the scope of the
-         *              arguments. Something to ponder at least.
-         *
-         * @param string $url URI resource.
-         * @param str|array $args Optional. Override the defaults.
-         * @return array containing 'headers', 'body', 'response', 'cookies'
-         */
-        function request( $url, $args = array() ) {
-                global $wp_version;
-
-                $defaults = array(
-                        'method' => 'GET',
-                        'timeout' => apply_filters( 'http_request_timeout', 5),
-                        'redirection' => apply_filters( 'http_request_redirection_count', 5),
-                        'httpversion' => apply_filters( 'http_request_version', '1.0'),
-                        'user-agent' => apply_filters( 'http_headers_useragent', 'WordPress/' . $wp_version . '; ' . get_bloginfo( 'url' )  ),
-                        'blocking' => true,
-                        'headers' => array(),
-                        'cookies' => array(),
-                        'body' => null,
-                        'compress' => false,
-                        'decompress' => true,
-                        'sslverify' => true
-                );
-
-                $r = wp_parse_args( $args, $defaults );
-                $r = apply_filters( 'http_request_args', $r, $url );
-
-                // Allow plugins to short-circuit the request
-                $pre = apply_filters( 'pre_http_request', false, $r, $url );
-                if ( false !== $pre )
-                        return $pre;
-
-                $arrURL = parse_url($url);
-
-                if ( $this->block_request( $url ) )
-                        return new WP_Error('http_request_failed', __('User has blocked requests through HTTP.'));
-
-                // Determine if this is a https call and pass that on to the transport functions
-                // so that we can blacklist the transports that do not support ssl verification
-                $r['ssl'] = $arrURL['scheme'] == 'https' || $arrURL['scheme'] == 'ssl';
-
-                // Determine if this request is to OUR install of WordPress
-                $homeURL = parse_url(get_bloginfo('url'));
-                $r['local'] = $homeURL['host'] == $arrURL['host'] || 'localhost' == $arrURL['host'];
-                unset($homeURL);
-
-                if ( is_null( $r['headers'] ) )
-                        $r['headers'] = array();
-
-                if ( ! is_array($r['headers']) ) {
-                        $processedHeaders = WP_Http::processHeaders($r['headers']);
-                        $r['headers'] = $processedHeaders['headers'];
-                }
-
-                if ( isset($r['headers']['User-Agent']) ) {
-                        $r['user-agent'] = $r['headers']['User-Agent'];
-                        unset($r['headers']['User-Agent']);
-                }
-
-                if ( isset($r['headers']['user-agent']) ) {
-                        $r['user-agent'] = $r['headers']['user-agent'];
-                        unset($r['headers']['user-agent']);
-                }
-
-                // Construct Cookie: header if any cookies are set
-                WP_Http::buildCookieHeader( $r );
-
-                if ( WP_Http_Encoding::is_available() )
-                        $r['headers']['Accept-Encoding'] = WP_Http_Encoding::accept_encoding();
-
-                if ( empty($r['body']) ) {
-                        // Some servers fail when sending content without the content-length header being set.
-                        // Also, to fix another bug, we only send when doing POST and PUT and the content-length
-                        // header isn't already set.
-                        if( ($r['method'] == 'POST' || $r['method'] == 'PUT') && ! isset($r['headers']['Content-Length']) )
-                                $r['headers']['Content-Length'] = 0;
-
-                        // The method is ambiguous, because we aren't talking about HTTP methods, the "get" in
-                        // this case is simply that we aren't sending any bodies and to get the transports that
-                        // don't support sending bodies along with those which do.
-                        $transports = WP_Http::_getTransport($r);
-                } else {
-                        if ( is_array( $r['body'] ) || is_object( $r['body'] ) ) {
-                                if ( ! version_compare(phpversion(), '5.1.2', '>=') )
-                                        $r['body'] = _http_build_query($r['body'], null, '&');
-                                else
-                                        $r['body'] = http_build_query($r['body'], null, '&');
-                                $r['headers']['Content-Type'] = 'application/x-www-form-urlencoded; charset=' . get_option('blog_charset');
-                                $r['headers']['Content-Length'] = strlen($r['body']);
-                        }
-
-                        if ( ! isset( $r['headers']['Content-Length'] ) && ! isset( $r['headers']['content-length'] ) )
-                                $r['headers']['Content-Length'] = strlen($r['body']);
-
-                        // The method is ambiguous, because we aren't talking about HTTP methods, the "post" in
-                        // this case is simply that we are sending HTTP body and to get the transports that do
-                        // support sending the body. Not all do, depending on the limitations of the PHP core
-                        // limitations.
-                        $transports = WP_Http::_postTransport($r);
-                }
-
-                do_action( 'http_api_debug', $transports, 'transports_list' );
-
-                $response = array( 'headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array() );
-                foreach ( (array) $transports as $transport ) {
-                        $response = $transport->request($url, $r);
-
-                        do_action( 'http_api_debug', $response, 'response', get_class($transport) );
-
-                        if ( ! is_wp_error($response) )
-                                return apply_filters( 'http_response', $response, $r, $url );
-                }
-
-                return $response;
-        }
-
-        /**
-         * Uses the POST HTTP method.
-         *
-         * Used for sending data that is expected to be in the body.
-         *
-         * @access public
-         * @since 2.7.0
-         *
-         * @param string $url URI resource.
-         * @param str|array $args Optional. Override the defaults.
-         * @return boolean
-         */
-        function post($url, $args = array()) {
-                $defaults = array('method' => 'POST');
-                $r = wp_parse_args( $args, $defaults );
-                return $this->request($url, $r);
-        }
-
-        /**
-         * Uses the GET HTTP method.
-         *
-         * Used for sending data that is expected to be in the body.
-         *
-         * @access public
-         * @since 2.7.0
-         *
-         * @param string $url URI resource.
-         * @param str|array $args Optional. Override the defaults.
-         * @return boolean
-         */
-        function get($url, $args = array()) {
-                $defaults = array('method' => 'GET');
-                $r = wp_parse_args( $args, $defaults );
-                return $this->request($url, $r);
-        }
-
-        /**
-         * Uses the HEAD HTTP method.
-         *
-         * Used for sending data that is expected to be in the body.
-         *
-         * @access public
-         * @since 2.7.0
-         *
-         * @param string $url URI resource.
-         * @param str|array $args Optional. Override the defaults.
-         * @return boolean
-         */
-        function head($url, $args = array()) {
-                $defaults = array('method' => 'HEAD');
-                $r = wp_parse_args( $args, $defaults );
-                return $this->request($url, $r);
-        }
-
-        /**
-         * Parses the responses and splits the parts into headers and body.
-         *
-         * @access public
-         * @static
-         * @since 2.7.0
-         *
-         * @param string $strResponse The full response string
-         * @return array Array with 'headers' and 'body' keys.
-         */
-        function processResponse($strResponse) {
-                list($theHeaders, $theBody) = explode("\r\n\r\n", $strResponse, 2);
-                return array('headers' => $theHeaders, 'body' => $theBody);
-        }
-
-        /**
-         * Transform header string into an array.
-         *
-         * If an array is given then it is assumed to be raw header data with numeric keys with the
-         * headers as the values. No headers must be passed that were already processed.
-         *
-         * @access public
-         * @static
-         * @since 2.7.0
-         *
-         * @param string|array $headers
-         * @return array Processed string headers. If duplicate headers are encountered,
-         *                                      Then a numbered array is returned as the value of that header-key.
-         */
-        function processHeaders($headers) {
-                // split headers, one per array element
-                if ( is_string($headers) ) {
-                        // tolerate line terminator: CRLF = LF (RFC 2616 19.3)
-                        $headers = str_replace("\r\n", "\n", $headers);
-                        // unfold folded header fields. LWS = [CRLF] 1*( SP | HT ) <US-ASCII SP, space (32)>, <US-ASCII HT, horizontal-tab (9)> (RFC 2616 2.2)
-                        $headers = preg_replace('/\n[ \t]/', ' ', $headers);
-                        // create the headers array
-                        $headers = explode("\n", $headers);
-                }
-
-                $response = array('code' => 0, 'message' => '');
-
-                // If a redirection has taken place, The headers for each page request may have been passed.
-                // In this case, determine the final HTTP header and parse from there.
-                for ( $i = count($headers)-1; $i >= 0; $i-- ) {
-                        if ( false === strpos($headers[$i], ':') ) {
-                                $headers = array_splice($headers, $i);
-                                break;
-                        }
-                }
-
-                $cookies = array();
-                $newheaders = array();
-                foreach ( $headers as $tempheader ) {
-                        if ( empty($tempheader) )
-                                continue;
-
-                        if ( false === strpos($tempheader, ':') ) {
-                                list( , $iResponseCode, $strResponseMsg) = explode(' ', $tempheader, 3);
-                                $response['code'] = $iResponseCode;
-                                $response['message'] = $strResponseMsg;
-                                continue;
-                        }
-
-                        list($key, $value) = explode(':', $tempheader, 2);
-
-                        if ( !empty( $value ) ) {
-                                $key = strtolower( $key );
-                                if ( isset( $newheaders[$key] ) ) {
-                                        $newheaders[$key] = array( $newheaders[$key], trim( $value ) );
-                                } else {
-                                        $newheaders[$key] = trim( $value );
-                                }
-                                if ( 'set-cookie' == strtolower( $key ) )
-                                        $cookies[] = new WP_Http_Cookie( $value );
-                        }
-                }
-
-                return array('response' => $response, 'headers' => $newheaders, 'cookies' => $cookies);
-        }
-
-        /**
-         * Takes the arguments for a ::request() and checks for the cookie array.
-         *
-         * If it's found, then it's assumed to contain WP_Http_Cookie objects, which are each parsed
-         * into strings and added to the Cookie: header (within the arguments array). Edits the array by
-         * reference.
-         *
-         * @access public
-         * @version 2.8.0
-         * @static
-         *
-         * @param array $r Full array of args passed into ::request()
-         */
-        function buildCookieHeader( &$r ) {
-                if ( ! empty($r['cookies']) ) {
-                        $cookies_header = '';
-                        foreach ( (array) $r['cookies'] as $cookie ) {
-                                $cookies_header .= $cookie->getHeaderValue() . '; ';
-                        }
-                        $cookies_header = substr( $cookies_header, 0, -2 );
-                        $r['headers']['cookie'] = $cookies_header;
-                }
-        }
-
-        /**
-         * Decodes chunk transfer-encoding, based off the HTTP 1.1 specification.
-         *
-         * Based off the HTTP http_encoding_dechunk function. Does not support UTF-8. Does not support
-         * returning footer headers. Shouldn't be too difficult to support it though.
-         *
-         * @todo Add support for footer chunked headers.
-         * @access public
-         * @since 2.7.0
-         * @static
-         *
-         * @param string $body Body content
-         * @return string Chunked decoded body on success or raw body on failure.
-         */
-        function chunkTransferDecode($body) {
-                $body = str_replace(array("\r\n", "\r"), "\n", $body);
-                // The body is not chunked encoding or is malformed.
-                if ( ! preg_match( '/^[0-9a-f]+(\s|\n)+/mi', trim($body) ) )
-                        return $body;
-
-                $parsedBody = '';
-                //$parsedHeaders = array(); Unsupported
-
-                while ( true ) {
-                        $hasChunk = (bool) preg_match( '/^([0-9a-f]+)(\s|\n)+/mi', $body, $match );
-
-                        if ( $hasChunk ) {
-                                if ( empty( $match[1] ) )
-                                        return $body;
-
-                                $length = hexdec( $match[1] );
-                                $chunkLength = strlen( $match[0] );
-
-                                $strBody = substr($body, $chunkLength, $length);
-                                $parsedBody .= $strBody;
-
-                                $body = ltrim(str_replace(array($match[0], $strBody), '', $body), "\n");
-
-                                if ( "0" == trim($body) )
-                                        return $parsedBody; // Ignore footer headers.
-                        } else {
-                                return $body;
-                        }
-                }
-        }
-
-        /**
-         * Block requests through the proxy.
-         *
-         * Those who are behind a proxy and want to prevent access to certain hosts may do so. This will
-         * prevent plugins from working and core functionality, if you don't include api.wordpress.org.
-         *
-         * You block external URL requests by defining WP_HTTP_BLOCK_EXTERNAL in your wp-config.php file
-         * and this will only allow localhost and your blog to make requests. The constant
-         * WP_ACCESSIBLE_HOSTS will allow additional hosts to go through for requests. The format of the
-         * WP_ACCESSIBLE_HOSTS constant is a comma separated list of hostnames to allow.
-         *
-         * @since 2.8.0
-         * @link http://core.trac.wordpress.org/ticket/8927 Allow preventing external requests.
-         *
-         * @param string $uri URI of url.
-         * @return bool True to block, false to allow.
-         */
-        function block_request($uri) {
-                // We don't need to block requests, because nothing is blocked.
-                if ( ! defined('WP_HTTP_BLOCK_EXTERNAL') || ( defined('WP_HTTP_BLOCK_EXTERNAL') && WP_HTTP_BLOCK_EXTERNAL == false ) )
-                        return false;
-
-                // parse_url() only handles http, https type URLs, and will emit E_WARNING on failure.
-                // This will be displayed on blogs, which is not reasonable.
-                $check = @parse_url($uri);
-
-                /* Malformed URL, can not process, but this could mean ssl, so let through anyway.
-                 *
-                 * This isn't very security sound. There are instances where a hacker might attempt
-                 * to bypass the proxy and this check. However, the reason for this behavior is that
-                 * WordPress does not do any checking currently for non-proxy requests, so it is keeps with
-                 * the default unsecure nature of the HTTP request.
-                 */
-                if ( $check === false )
-                        return false;
-
-                $home = parse_url( get_option('siteurl') );
-
-                // Don't block requests back to ourselves by default
-                if ( $check['host'] == 'localhost' || $check['host'] == $home['host'] )
-                        return apply_filters('block_local_requests', false);
-
-                if ( !defined('WP_ACCESSIBLE_HOSTS') )
-                        return true;
-
-                static $accessible_hosts;
-                if ( null == $accessible_hosts )
-                        $accessible_hosts = preg_split('|,\s*|', WP_ACCESSIBLE_HOSTS);
-
-                return !in_array( $check['host'], $accessible_hosts ); //Inverse logic, If its in the array, then we can't access it.
-        }
-}
-
-/**
- * HTTP request method uses fsockopen function to retrieve the url.
- *
- * This would be the preferred method, but the fsockopen implementation has the most overhead of all
- * the HTTP transport implementations.
- *
- * @package WordPress
- * @subpackage HTTP
- * @since 2.7.0
- */
-class WP_Http_Fsockopen {
-        /**
-         * Send a HTTP request to a URI using fsockopen().
-         *
-         * Does not support non-blocking mode.
-         *
-         * @see WP_Http::request For default options descriptions.
-         *
-         * @since 2.7
-         * @access public
-         * @param string $url URI resource.
-         * @param str|array $args Optional. Override the defaults.
-         * @return array 'headers', 'body', 'cookies' and 'response' keys.
-         */
-        function request($url, $args = array()) {
-                $defaults = array(
-                        'method' => 'GET', 'timeout' => 5,
-                        'redirection' => 5, 'httpversion' => '1.0',
-                        'blocking' => true,
-                        'headers' => array(), 'body' => null, 'cookies' => array()
-                );
-
-                $r = wp_parse_args( $args, $defaults );
-
-                if ( isset($r['headers']['User-Agent']) ) {
-                        $r['user-agent'] = $r['headers']['User-Agent'];
-                        unset($r['headers']['User-Agent']);
-                } else if( isset($r['headers']['user-agent']) ) {
-                        $r['user-agent'] = $r['headers']['user-agent'];
-                        unset($r['headers']['user-agent']);
-                }
-
-                // Construct Cookie: header if any cookies are set
-                WP_Http::buildCookieHeader( $r );
-
-                $iError = null; // Store error number
-                $strError = null; // Store error string
-
-                $arrURL = parse_url($url);
-
-                $fsockopen_host = $arrURL['host'];
-
-                $secure_transport = false;
-
-                if ( ! isset( $arrURL['port'] ) ) {
-                        if ( ( $arrURL['scheme'] == 'ssl' || $arrURL['scheme'] == 'https' ) && extension_loaded('openssl') ) {
-                                $fsockopen_host = "ssl://$fsockopen_host";
-                                $arrURL['port'] = 443;
-                                $secure_transport = true;
-                        } else {
-                                $arrURL['port'] = 80;
-                        }
-                }
-
-                //fsockopen has issues with 'localhost' with IPv6 with certain versions of PHP, It attempts to connect to ::1,
-                // which fails when the server is not setup for it. For compatibility, always connect to the IPv4 address.
-                if ( 'localhost' == strtolower($fsockopen_host) )
-                        $fsockopen_host = '127.0.0.1';
-
-                // There are issues with the HTTPS and SSL protocols that cause errors that can be safely
-                // ignored and should be ignored.
-                if ( true === $secure_transport )
-                        $error_reporting = error_reporting(0);
-
-                $startDelay = time();
-
-                $proxy = new WP_HTTP_Proxy();
-
-                if ( !WP_DEBUG ) {
-                        if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) )
-                                $handle = @fsockopen( $proxy->host(), $proxy->port(), $iError, $strError, $r['timeout'] );
-                        else
-                                $handle = @fsockopen( $fsockopen_host, $arrURL['port'], $iError, $strError, $r['timeout'] );
-                } else {
-                        if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) )
-                                $handle = fsockopen( $proxy->host(), $proxy->port(), $iError, $strError, $r['timeout'] );
-                        else
-                                $handle = fsockopen( $fsockopen_host, $arrURL['port'], $iError, $strError, $r['timeout'] );
-                }
-
-                $endDelay = time();
-
-                // If the delay is greater than the timeout then fsockopen should't be used, because it will
-                // cause a long delay.
-                $elapseDelay = ($endDelay-$startDelay) > $r['timeout'];
-                if ( true === $elapseDelay )
-                        add_option( 'disable_fsockopen', $endDelay, null, true );
-
-                if ( false === $handle )
-                        return new WP_Error('http_request_failed', $iError . ': ' . $strError);
-
-                $timeout = (int) floor( $r['timeout'] );
-                $utimeout = $timeout == $r['timeout'] ? 0 : 1000000 * $r['timeout'] % 1000000;
-                stream_set_timeout( $handle, $timeout, $utimeout );
-
-                if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) //Some proxies require full URL in this field.
-                        $requestPath = $url;
-                else
-                        $requestPath = $arrURL['path'] . ( isset($arrURL['query']) ? '?' . $arrURL['query'] : '' );
-
-                if ( empty($requestPath) )
-                        $requestPath .= '/';
-
-                $strHeaders = strtoupper($r['method']) . ' ' . $requestPath . ' HTTP/' . $r['httpversion'] . "\r\n";
-
-                if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) )
-                        $strHeaders .= 'Host: ' . $arrURL['host'] . ':' . $arrURL['port'] . "\r\n";
-                else
-                        $strHeaders .= 'Host: ' . $arrURL['host'] . "\r\n";
-
-                if ( isset($r['user-agent']) )
-                        $strHeaders .= 'User-agent: ' . $r['user-agent'] . "\r\n";
-
-                if ( is_array($r['headers']) ) {
-                        foreach ( (array) $r['headers'] as $header => $headerValue )
-                                $strHeaders .= $header . ': ' . $headerValue . "\r\n";
-                } else {
-                        $strHeaders .= $r['headers'];
-                }
-
-                if ( $proxy->use_authentication() )
-                        $strHeaders .= $proxy->authentication_header() . "\r\n";
-
-                $strHeaders .= "\r\n";
-
-                if ( ! is_null($r['body']) )
-                        $strHeaders .= $r['body'];
-
-                fwrite($handle, $strHeaders);
-
-                if ( ! $r['blocking'] ) {
-                        fclose($handle);
-                        return array( 'headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array() );
-                }
-
-                $strResponse = '';
-                while ( ! feof($handle) )
-                        $strResponse .= fread($handle, 4096);
-
-                fclose($handle);
-
-                if ( true === $secure_transport )
-                        error_reporting($error_reporting);
-
-                $process = WP_Http::processResponse($strResponse);
-                $arrHeaders = WP_Http::processHeaders($process['headers']);
-
-                // Is the response code within the 400 range?
-                if ( (int) $arrHeaders['response']['code'] >= 400 && (int) $arrHeaders['response']['code'] < 500 )
-                        return new WP_Error('http_request_failed', $arrHeaders['response']['code'] . ': ' . $arrHeaders['response']['message']);
-
-                // If location is found, then assume redirect and redirect to location.
-                if ( 'HEAD' != $r['method'] && isset($arrHeaders['headers']['location']) ) {
-                        if ( $r['redirection']-- > 0 ) {
-                                return $this->request($arrHeaders['headers']['location'], $r);
-                        } else {
-                                return new WP_Error('http_request_failed', __('Too many redirects.'));
-                        }
-                }
-
-                // If the body was chunk encoded, then decode it.
-                if ( ! empty( $process['body'] ) && isset( $arrHeaders['headers']['transfer-encoding'] ) && 'chunked' == $arrHeaders['headers']['transfer-encoding'] )
-                        $process['body'] = WP_Http::chunkTransferDecode($process['body']);
-
-                if ( true === $r['decompress'] && true === WP_Http_Encoding::should_decode($arrHeaders['headers']) )
-                        $process['body'] = WP_Http_Encoding::decompress( $process['body'] );
-
-                return array('headers' => $arrHeaders['headers'], 'body' => $process['body'], 'response' => $arrHeaders['response'], 'cookies' => $arrHeaders['cookies']);
-        }
-
-        /**
-         * Whether this class can be used for retrieving an URL.
-         *
-         * @since 2.7.0
-         * @static
-         * @return boolean False means this class can not be used, true means it can.
-         */
-        function test( $args = array() ) {
-                if ( false !== ($option = get_option( 'disable_fsockopen' )) && time()-$option < 43200 ) // 12 hours
-                        return false;
-
-                $is_ssl = isset($args['ssl']) && $args['ssl'];
-
-                if ( ! $is_ssl && function_exists( 'fsockopen' ) )
-                        $use = true;
-                elseif ( $is_ssl && extension_loaded('openssl') && function_exists( 'fsockopen' ) )
-                        $use = true;
-                else
-                        $use = false;
-
-                return apply_filters('use_fsockopen_transport', $use, $args);
-        }
-}
-
-/**
- * HTTP request method uses fopen function to retrieve the url.
- *
- * Requires PHP version greater than 4.3.0 for stream support. Does not allow for $context support,
- * but should still be okay, to write the headers, before getting the response. Also requires that
- * 'allow_url_fopen' to be enabled.
- *
- * @package WordPress
- * @subpackage HTTP
- * @since 2.7.0
- */
-class WP_Http_Fopen {
-        /**
-         * Send a HTTP request to a URI using fopen().
-         *
-         * This transport does not support sending of headers and body, therefore should not be used in
-         * the instances, where there is a body and headers.
-         *
-         * Notes: Does not support non-blocking mode. Ignores 'redirection' option.
-         *
-         * @see WP_Http::retrieve For default options descriptions.
-         *
-         * @access public
-         * @since 2.7.0
-         *
-         * @param string $url URI resource.
-         * @param str|array $args Optional. Override the defaults.
-         * @return array 'headers', 'body', 'cookies' and 'response' keys.
-         */
-        function request($url, $args = array()) {
-                $defaults = array(
-                        'method' => 'GET', 'timeout' => 5,
-                        'redirection' => 5, 'httpversion' => '1.0',
-                        'blocking' => true,
-                        'headers' => array(), 'body' => null, 'cookies' => array()
-                );
-
-                $r = wp_parse_args( $args, $defaults );
-
-                $arrURL = parse_url($url);
-
-                if ( false === $arrURL )
-                        return new WP_Error('http_request_failed', sprintf(__('Malformed URL: %s'), $url));
-
-                if ( 'http' != $arrURL['scheme'] && 'https' != $arrURL['scheme'] )
-                        $url = str_replace($arrURL['scheme'], 'http', $url);
-
-                if ( is_null( $r['headers'] ) )
-                        $r['headers'] = array();
-
-                if ( is_string($r['headers']) ) {
-                        $processedHeaders = WP_Http::processHeaders($r['headers']);
-                        $r['headers'] = $processedHeaders['headers'];
-                }
-
-                $initial_user_agent = ini_get('user_agent');
-
-                if ( !empty($r['headers']) && is_array($r['headers']) ) {
-                        $user_agent_extra_headers = '';
-                        foreach ( $r['headers'] as $header => $value )
-                                $user_agent_extra_headers .= "\r\n$header: $value";
-                        @ini_set('user_agent', $r['user-agent'] . $user_agent_extra_headers);
-                } else {
-                        @ini_set('user_agent', $r['user-agent']);
-                }
-
-                if ( !WP_DEBUG )
-                        $handle = @fopen($url, 'r');
-                else
-                        $handle = fopen($url, 'r');
-
-                if (! $handle)
-                        return new WP_Error('http_request_failed', sprintf(__('Could not open handle for fopen() to %s'), $url));
-
-                $timeout = (int) floor( $r['timeout'] );
-                $utimeout = $timeout == $r['timeout'] ? 0 : 1000000 * $r['timeout'] % 1000000;
-                stream_set_timeout( $handle, $timeout, $utimeout );
-
-                if ( ! $r['blocking'] ) {
-                        fclose($handle);
-                        @ini_set('user_agent', $initial_user_agent); //Clean up any extra headers added
-                        return array( 'headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array() );
-                }
-
-                $strResponse = '';
-                while ( ! feof($handle) )
-                        $strResponse .= fread($handle, 4096);
-
-                if ( function_exists('stream_get_meta_data') ) {
-                        $meta = stream_get_meta_data($handle);
-                        $theHeaders = $meta['wrapper_data'];
-                        if ( isset( $meta['wrapper_data']['headers'] ) )
-                                $theHeaders = $meta['wrapper_data']['headers'];
-                } else {
-                        //$http_response_header is a PHP reserved variable which is set in the current-scope when using the HTTP Wrapper
-                        //see http://php.oregonstate.edu/manual/en/reserved.variables.httpresponseheader.php
-                        $theHeaders = $http_response_header;
-                }
-
-                fclose($handle);
-
-                @ini_set('user_agent', $initial_user_agent); //Clean up any extra headers added
-
-                $processedHeaders = WP_Http::processHeaders($theHeaders);
-
-                if ( ! empty( $strResponse ) && isset( $processedHeaders['headers']['transfer-encoding'] ) && 'chunked' == $processedHeaders['headers']['transfer-encoding'] )
-                        $strResponse = WP_Http::chunkTransferDecode($strResponse);
-
-                if ( true === $r['decompress'] && true === WP_Http_Encoding::should_decode($processedHeaders['headers']) )
-                        $strResponse = WP_Http_Encoding::decompress( $strResponse );
-
-                return array('headers' => $processedHeaders['headers'], 'body' => $strResponse, 'response' => $processedHeaders['response'], 'cookies' => $processedHeaders['cookies']);
-        }
-
-        /**
-         * Whether this class can be used for retrieving an URL.
-         *
-         * @since 2.7.0
-         * @static
-         * @return boolean False means this class can not be used, true means it can.
-         */
-        function test($args = array()) {
-                if ( ! function_exists('fopen') || (function_exists('ini_get') && true != ini_get('allow_url_fopen')) )
-                        return false;
-
-                if ( isset($args['method']) && 'HEAD' == $args['method'] ) //This transport cannot make a HEAD request
-                        return false;
-
-                $use = true;
-                //PHP does not verify SSL certs, We can only make a request via this transports if SSL Verification is turned off.
-                $is_ssl = isset($args['ssl']) && $args['ssl'];
-                if ( $is_ssl ) {
-                        $is_local = isset($args['local']) && $args['local'];
-                        $ssl_verify = isset($args['sslverify']) && $args['sslverify'];
-                        if ( $is_local && true != apply_filters('https_local_ssl_verify', true) )
-                                $use = true;
-                        elseif ( !$is_local && true != apply_filters('https_ssl_verify', true) )
-                                $use = true;
-                        elseif ( !$ssl_verify )
-                                $use = true;
-                        else
-                                $use = false;
-                }
-
-                return apply_filters('use_fopen_transport', $use, $args);
-        }
-}
-
-/**
- * HTTP request method uses Streams to retrieve the url.
- *
- * Requires PHP 5.0+ and uses fopen with stream context. Requires that 'allow_url_fopen' PHP setting
- * to be enabled.
- *
- * Second preferred method for getting the URL, for PHP 5.
- *
- * @package WordPress
- * @subpackage HTTP
- * @since 2.7.0
- */
-class WP_Http_Streams {
-        /**
-         * Send a HTTP request to a URI using streams with fopen().
-         *
-         * @access public
-         * @since 2.7.0
-         *
-         * @param string $url
-         * @param str|array $args Optional. Override the defaults.
-         * @return array 'headers', 'body', 'cookies' and 'response' keys.
-         */
-        function request($url, $args = array()) {
-                $defaults = array(
-                        'method' => 'GET', 'timeout' => 5,
-                        'redirection' => 5, 'httpversion' => '1.0',
-                        'blocking' => true,
-                        'headers' => array(), 'body' => null, 'cookies' => array()
-                );
-
-                $r = wp_parse_args( $args, $defaults );
-
-                if ( isset($r['headers']['User-Agent']) ) {
-                        $r['user-agent'] = $r['headers']['User-Agent'];
-                        unset($r['headers']['User-Agent']);
-                } else if( isset($r['headers']['user-agent']) ) {
-                        $r['user-agent'] = $r['headers']['user-agent'];
-                        unset($r['headers']['user-agent']);
-                }
-
-                // Construct Cookie: header if any cookies are set
-                WP_Http::buildCookieHeader( $r );
-
-                $arrURL = parse_url($url);
-
-                if ( false === $arrURL )
-                        return new WP_Error('http_request_failed', sprintf(__('Malformed URL: %s'), $url));
-
-                if ( 'http' != $arrURL['scheme'] && 'https' != $arrURL['scheme'] )
-                        $url = preg_replace('|^' . preg_quote($arrURL['scheme'], '|') . '|', 'http', $url);
-
-                // Convert Header array to string.
-                $strHeaders = '';
-                if ( is_array( $r['headers'] ) )
-                        foreach ( $r['headers'] as $name => $value )
-                                $strHeaders .= "{$name}: $value\r\n";
-                else if ( is_string( $r['headers'] ) )
-                        $strHeaders = $r['headers'];
-
-                $is_local = isset($args['local']) && $args['local'];
-                $ssl_verify = isset($args['sslverify']) && $args['sslverify'];
-                if ( $is_local )
-                        $ssl_verify = apply_filters('https_local_ssl_verify', $ssl_verify);
-                elseif ( ! $is_local )
-                        $ssl_verify = apply_filters('https_ssl_verify', $ssl_verify);
-
-                $arrContext = array('http' =>
-                        array(
-                                'method' => strtoupper($r['method']),
-                                'user_agent' => $r['user-agent'],
-                                'max_redirects' => $r['redirection'] + 1, // See #11557
-                                'protocol_version' => (float) $r['httpversion'],
-                                'header' => $strHeaders,
-                                'ignore_errors' => true, // Return non-200 requests. 
-                                'timeout' => $r['timeout'],
-                                'ssl' => array(
-                                                'verify_peer' => $ssl_verify,
-                                                'verify_host' => $ssl_verify
-                                )
-                        )
-                );
-
-                $proxy = new WP_HTTP_Proxy();
-
-                if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) {
-                        $arrContext['http']['proxy'] = 'tcp://' . $proxy->host() . ':' . $proxy->port();
-                        $arrContext['http']['request_fulluri'] = true;
-
-                        // We only support Basic authentication so this will only work if that is what your proxy supports.
-                        if ( $proxy->use_authentication() )
-                                $arrContext['http']['header'] .= $proxy->authentication_header() . "\r\n";
-                }
-
-                if ( 'HEAD' == $r['method'] ) // Disable redirects for HEAD requests
-                        $arrContext['http']['max_redirects'] = 1;
-
-                if ( ! empty($r['body'] ) )
-                        $arrContext['http']['content'] = $r['body'];
-
-                $context = stream_context_create($arrContext);
-
-                if ( !WP_DEBUG )
-                        $handle = @fopen($url, 'r', false, $context);
-                else
-                        $handle = fopen($url, 'r', false, $context);
-
-                if ( ! $handle )
-                        return new WP_Error('http_request_failed', sprintf(__('Could not open handle for fopen() to %s'), $url));
-
-                $timeout = (int) floor( $r['timeout'] );
-                $utimeout = $timeout == $r['timeout'] ? 0 : 1000000 * $r['timeout'] % 1000000;
-                stream_set_timeout( $handle, $timeout, $utimeout );
-
-                if ( ! $r['blocking'] ) {
-                        stream_set_blocking($handle, 0);
-                        fclose($handle);
-                        return array( 'headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array() );
-                }
-
-                $strResponse = stream_get_contents($handle);
-                $meta = stream_get_meta_data($handle);
-
-                fclose($handle);
-
-                $processedHeaders = array();
-                if ( isset( $meta['wrapper_data']['headers'] ) )
-                        $processedHeaders = WP_Http::processHeaders($meta['wrapper_data']['headers']);
-                else
-                        $processedHeaders = WP_Http::processHeaders($meta['wrapper_data']);
-
-                if ( ! empty( $strResponse ) && isset( $processedHeaders['headers']['transfer-encoding'] ) && 'chunked' == $processedHeaders['headers']['transfer-encoding'] )
-                        $strResponse = WP_Http::chunkTransferDecode($strResponse);
-
-                if ( true === $r['decompress'] && true === WP_Http_Encoding::should_decode($processedHeaders['headers']) )
-                        $strResponse = WP_Http_Encoding::decompress( $strResponse );
-
-                return array('headers' => $processedHeaders['headers'], 'body' => $strResponse, 'response' => $processedHeaders['response'], 'cookies' => $processedHeaders['cookies']);
-        }
-
-        /**
-         * Whether this class can be used for retrieving an URL.
-         *
-         * @static
-         * @access public
-         * @since 2.7.0
-         *
-         * @return boolean False means this class can not be used, true means it can.
-         */
-        function test($args = array()) {
-                if ( ! function_exists('fopen') || (function_exists('ini_get') && true != ini_get('allow_url_fopen')) )
-                        return false;
-
-                if ( version_compare(PHP_VERSION, '5.0', '<') )
-                        return false;
-
-                //HTTPS via Proxy was added in 5.1.0
-                $is_ssl = isset($args['ssl']) && $args['ssl'];
-                if ( $is_ssl && version_compare(PHP_VERSION, '5.1.0', '<') ) {
-                        $proxy = new WP_HTTP_Proxy();
-                        /**
-                         * No URL check, as its not currently passed to the ::test() function
-                         * In the case where a Proxy is in use, Just bypass this transport for HTTPS.
-                         */
-                        if ( $proxy->is_enabled() )
-                                return false;
-                }
-
-                return apply_filters('use_streams_transport', true, $args);
-        }
-}
-
-/**
- * HTTP request method uses HTTP extension to retrieve the url.
- *
- * Requires the HTTP extension to be installed. This would be the preferred transport since it can
- * handle a lot of the problems that forces the others to use the HTTP version 1.0. Even if PHP 5.2+
- * is being used, it doesn't mean that the HTTP extension will be enabled.
- *
- * @package WordPress
- * @subpackage HTTP
- * @since 2.7.0
- */
-class WP_Http_ExtHTTP {
-        /**
-         * Send a HTTP request to a URI using HTTP extension.
-         *
-         * Does not support non-blocking.
-         *
-         * @access public
-         * @since 2.7
-         *
-         * @param string $url
-         * @param str|array $args Optional. Override the defaults.
-         * @return array 'headers', 'body', 'cookies' and 'response' keys.
-         */
-        function request($url, $args = array()) {
-                $defaults = array(
-                        'method' => 'GET', 'timeout' => 5,
-                        'redirection' => 5, 'httpversion' => '1.0',
-                        'blocking' => true,
-                        'headers' => array(), 'body' => null, 'cookies' => array()
-                );
-
-                $r = wp_parse_args( $args, $defaults );
-
-                if ( isset($r['headers']['User-Agent']) ) {
-                        $r['user-agent'] = $r['headers']['User-Agent'];
-                        unset($r['headers']['User-Agent']);
-                } else if( isset($r['headers']['user-agent']) ) {
-                        $r['user-agent'] = $r['headers']['user-agent'];
-                        unset($r['headers']['user-agent']);
-                }
-
-                // Construct Cookie: header if any cookies are set
-                WP_Http::buildCookieHeader( $r );
-
-                switch ( $r['method'] ) {
-                        case 'POST':
-                                $r['method'] = HTTP_METH_POST;
-                                break;
-                        case 'HEAD':
-                                $r['method'] = HTTP_METH_HEAD;
-                                break;
-                        case 'PUT':
-                                $r['method'] =  HTTP_METH_PUT;
-                                break;
-                        case 'GET':
-                        default:
-                                $r['method'] = HTTP_METH_GET;
-                }
-
-                $arrURL = parse_url($url);
-
-                if ( 'http' != $arrURL['scheme'] || 'https' != $arrURL['scheme'] )
-                        $url = preg_replace('|^' . preg_quote($arrURL['scheme'], '|') . '|', 'http', $url);
-
-                $is_local = isset($args['local']) && $args['local'];
-                $ssl_verify = isset($args['sslverify']) && $args['sslverify'];
-                if ( $is_local )
-                        $ssl_verify = apply_filters('https_local_ssl_verify', $ssl_verify);
-                elseif ( ! $is_local )
-                        $ssl_verify = apply_filters('https_ssl_verify', $ssl_verify);
-
-                $r['timeout'] = (int) ceil( $r['timeout'] );
-
-                $options = array(
-                        'timeout' => $r['timeout'],
-                        'connecttimeout' => $r['timeout'],
-                        'redirect' => $r['redirection'],
-                        'useragent' => $r['user-agent'],
-                        'headers' => $r['headers'],
-                        'ssl' => array(
-                                'verifypeer' => $ssl_verify,
-                                'verifyhost' => $ssl_verify
-                        )
-                );
-
-                if ( HTTP_METH_HEAD == $r['method'] )
-                        $options['redirect'] = 0; // Assumption: Docs seem to suggest that this means do not follow. Untested.
-
-                // The HTTP extensions offers really easy proxy support.
-                $proxy = new WP_HTTP_Proxy();
-
-                if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) {
-                        $options['proxyhost'] = $proxy->host();
-                        $options['proxyport'] = $proxy->port();
-                        $options['proxytype'] = HTTP_PROXY_HTTP;
-
-                        if ( $proxy->use_authentication() ) {
-                                $options['proxyauth'] = $proxy->authentication();
-                                $options['proxyauthtype'] = HTTP_AUTH_BASIC;
-                        }
-                }
-
-                if ( !WP_DEBUG ) //Emits warning level notices for max redirects and timeouts
-                        $strResponse = @http_request($r['method'], $url, $r['body'], $options, $info);
-                else
-                        $strResponse = http_request($r['method'], $url, $r['body'], $options, $info); //Emits warning level notices for max redirects and timeouts
-
-                // Error may still be set, Response may return headers or partial document, and error
-                // contains a reason the request was aborted, eg, timeout expired or max-redirects reached.
-                if ( false === $strResponse || ! empty($info['error']) )
-                        return new WP_Error('http_request_failed', $info['response_code'] . ': ' . $info['error']);
-
-                if ( ! $r['blocking'] )
-                        return array( 'headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array() );
-
-                list($theHeaders, $theBody) = explode("\r\n\r\n", $strResponse, 2);
-                $theHeaders = WP_Http::processHeaders($theHeaders);
-
-                if ( ! empty( $theBody ) && isset( $theHeaders['headers']['transfer-encoding'] ) && 'chunked' == $theHeaders['headers']['transfer-encoding'] ) {
-                        if ( !WP_DEBUG )
-                                $theBody = @http_chunked_decode($theBody);
-                        else
-                                $theBody = http_chunked_decode($theBody);
-                }
-
-                if ( true === $r['decompress'] && true === WP_Http_Encoding::should_decode($theHeaders['headers']) )
-                        $theBody = http_inflate( $theBody );
-
-                $theResponse = array();
-                $theResponse['code'] = $info['response_code'];
-                $theResponse['message'] = get_status_header_desc($info['response_code']);
-
-                return array('headers' => $theHeaders['headers'], 'body' => $theBody, 'response' => $theResponse, 'cookies' => $theHeaders['cookies']);
-        }
-
-        /**
-         * Whether this class can be used for retrieving an URL.
-         *
-         * @static
-         * @since 2.7.0
-         *
-         * @return boolean False means this class can not be used, true means it can.
-         */
-        function test($args = array()) {
-                return apply_filters('use_http_extension_transport', function_exists('http_request'), $args );
-        }
-}
-
-/**
- * HTTP request method uses Curl extension to retrieve the url.
- *
- * Requires the Curl extension to be installed.
- *
- * @package WordPress
- * @subpackage HTTP
- * @since 2.7
- */
-class WP_Http_Curl {
-
-        /**
-         * Send a HTTP request to a URI using cURL extension.
-         *
-         * @access public
-         * @since 2.7.0
-         *
-         * @param string $url
-         * @param str|array $args Optional. Override the defaults.
-         * @return array 'headers', 'body', 'cookies' and 'response' keys.
-         */
-        function request($url, $args = array()) {
-                $defaults = array(
-                        'method' => 'GET', 'timeout' => 5,
-                        'redirection' => 5, 'httpversion' => '1.0',
-                        'blocking' => true,
-                        'headers' => array(), 'body' => null, 'cookies' => array()
-                );
-
-                $r = wp_parse_args( $args, $defaults );
-
-                if ( isset($r['headers']['User-Agent']) ) {
-                        $r['user-agent'] = $r['headers']['User-Agent'];
-                        unset($r['headers']['User-Agent']);
-                } else if( isset($r['headers']['user-agent']) ) {
-                        $r['user-agent'] = $r['headers']['user-agent'];
-                        unset($r['headers']['user-agent']);
-                }
-
-                // Construct Cookie: header if any cookies are set.
-                WP_Http::buildCookieHeader( $r );
-
-                $handle = curl_init();
-
-                // cURL offers really easy proxy support.
-                $proxy = new WP_HTTP_Proxy();
-
-                if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) {
-
-                        $isPHP5 = version_compare(PHP_VERSION, '5.0.0', '>=');
-
-                        if ( $isPHP5 ) {
-                                curl_setopt( $handle, CURLOPT_PROXYTYPE, CURLPROXY_HTTP );
-                                curl_setopt( $handle, CURLOPT_PROXY, $proxy->host() );
-                                curl_setopt( $handle, CURLOPT_PROXYPORT, $proxy->port() );
-                        } else {
-                                curl_setopt( $handle, CURLOPT_PROXY, $proxy->host() .':'. $proxy->port() );
-                        }
-
-                        if ( $proxy->use_authentication() ) {
-                                if ( $isPHP5 )
-                                        curl_setopt( $handle, CURLOPT_PROXYAUTH, CURLAUTH_BASIC );
-
-                                curl_setopt( $handle, CURLOPT_PROXYUSERPWD, $proxy->authentication() );
-                        }
-                }
-
-                $is_local = isset($args['local']) && $args['local'];
-                $ssl_verify = isset($args['sslverify']) && $args['sslverify'];
-                if ( $is_local )
-                        $ssl_verify = apply_filters('https_local_ssl_verify', $ssl_verify);
-                elseif ( ! $is_local )
-                        $ssl_verify = apply_filters('https_ssl_verify', $ssl_verify);
-
-
-                // CURLOPT_TIMEOUT and CURLOPT_CONNECTTIMEOUT expect integers.  Have to use ceil since
-                // a value of 0 will allow an ulimited timeout.
-                $timeout = (int) ceil( $r['timeout'] );
-                curl_setopt( $handle, CURLOPT_CONNECTTIMEOUT, $timeout );
-                curl_setopt( $handle, CURLOPT_TIMEOUT, $timeout );
-
-                curl_setopt( $handle, CURLOPT_URL, $url);
-                curl_setopt( $handle, CURLOPT_RETURNTRANSFER, true );
-                curl_setopt( $handle, CURLOPT_SSL_VERIFYHOST, $ssl_verify );
-                curl_setopt( $handle, CURLOPT_SSL_VERIFYPEER, $ssl_verify );
-                curl_setopt( $handle, CURLOPT_USERAGENT, $r['user-agent'] );
-                curl_setopt( $handle, CURLOPT_MAXREDIRS, $r['redirection'] );
-
-                switch ( $r['method'] ) {
-                        case 'HEAD':
-                                curl_setopt( $handle, CURLOPT_NOBODY, true );
-                                break;
-                        case 'POST':
-                                curl_setopt( $handle, CURLOPT_POST, true );
-                                curl_setopt( $handle, CURLOPT_POSTFIELDS, $r['body'] );
-                                break;
-                        case 'PUT':
-                                curl_setopt( $handle, CURLOPT_CUSTOMREQUEST, 'PUT' );
-                                curl_setopt( $handle, CURLOPT_POSTFIELDS, $r['body'] );
-                                break;
-                }
-
-                if ( true === $r['blocking'] )
-                        curl_setopt( $handle, CURLOPT_HEADER, true );
-                else
-                        curl_setopt( $handle, CURLOPT_HEADER, false );
-
-                // The option doesn't work with safe mode or when open_basedir is set.
-                // Disable HEAD when making HEAD requests.
-                if ( !ini_get('safe_mode') && !ini_get('open_basedir') && 'HEAD' != $r['method'] )
-                        curl_setopt( $handle, CURLOPT_FOLLOWLOCATION, true );
-
-                if ( !empty( $r['headers'] ) ) {
-                        // cURL expects full header strings in each element
-                        $headers = array();
-                        foreach ( $r['headers'] as $name => $value ) {
-                                $headers[] = "{$name}: $value";
-                        }
-                        curl_setopt( $handle, CURLOPT_HTTPHEADER, $headers );
-                }
-
-                if ( $r['httpversion'] == '1.0' )
-                        curl_setopt( $handle, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0 );
-                else
-                        curl_setopt( $handle, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1 );
-
-                // Cookies are not handled by the HTTP API currently. Allow for plugin authors to handle it
-                // themselves... Although, it is somewhat pointless without some reference.
-                do_action_ref_array( 'http_api_curl', array(&$handle) );
-
-                // We don't need to return the body, so don't. Just execute request and return.
-                if ( ! $r['blocking'] ) {
-                        curl_exec( $handle );
-                        curl_close( $handle );
-                        return array( 'headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array() );
-                }
-
-                $theResponse = curl_exec( $handle );
-
-                if ( !empty($theResponse) ) {
-                        $headerLength = curl_getinfo($handle, CURLINFO_HEADER_SIZE);
-                        $theHeaders = trim( substr($theResponse, 0, $headerLength) );
-                        if ( strlen($theResponse) > $headerLength )
-                                $theBody = substr( $theResponse, $headerLength );
-                        else
-                                $theBody = '';
-                        if ( false !== strrpos($theHeaders, "\r\n\r\n") ) {
-                                $headerParts = explode("\r\n\r\n", $theHeaders);
-                                $theHeaders = $headerParts[ count($headerParts) -1 ];
-                        }
-                        $theHeaders = WP_Http::processHeaders($theHeaders);
-                } else {
-                        if ( $curl_error = curl_error($handle) )
-                                return new WP_Error('http_request_failed', $curl_error);
-                        if ( in_array( curl_getinfo( $handle, CURLINFO_HTTP_CODE ), array(301, 302) ) )
-                                return new WP_Error('http_request_failed', __('Too many redirects.'));
-
-                        $theHeaders = array( 'headers' => array(), 'cookies' => array() );
-                        $theBody = '';
-                }
-
-                $response = array();
-                $response['code'] = curl_getinfo( $handle, CURLINFO_HTTP_CODE );
-                $response['message'] = get_status_header_desc($response['code']);
-
-                curl_close( $handle );
-
-                // See #11305 - When running under safe mode, redirection is disabled above. Handle it manually.
-                if ( !empty($theHeaders['headers']['location']) && (ini_get('safe_mode') || ini_get('open_basedir')) ) {
-                        if ( $r['redirection']-- > 0 ) {
-                                return $this->request($theHeaders['headers']['location'], $r);
-                        } else {
-                                return new WP_Error('http_request_failed', __('Too many redirects.'));
-                        }
-                }
-
-                if ( true === $r['decompress'] && true === WP_Http_Encoding::should_decode($theHeaders['headers']) )
-                        $theBody = WP_Http_Encoding::decompress( $theBody );
-
-                return array('headers' => $theHeaders['headers'], 'body' => $theBody, 'response' => $response, 'cookies' => $theHeaders['cookies']);
-        }
-
-        /**
-         * Whether this class can be used for retrieving an URL.
-         *
-         * @static
-         * @since 2.7.0
-         *
-         * @return boolean False means this class can not be used, true means it can.
-         */
-        function test($args = array()) {
-                if ( function_exists('curl_init') && function_exists('curl_exec') )
-                        return apply_filters('use_curl_transport', true, $args);
-
-                return false;
-        }
-}
-
-/**
- * Adds Proxy support to the WordPress HTTP API.
- *
- * There are caveats to proxy support. It requires that defines be made in the wp-config.php file to
- * enable proxy support. There are also a few filters that plugins can hook into for some of the
- * constants.
- *
- * The constants are as follows:
- * <ol>
- * <li>WP_PROXY_HOST - Enable proxy support and host for connecting.</li>
- * <li>WP_PROXY_PORT - Proxy port for connection. No default, must be defined.</li>
- * <li>WP_PROXY_USERNAME - Proxy username, if it requires authentication.</li>
- * <li>WP_PROXY_PASSWORD - Proxy password, if it requires authentication.</li>
- * <li>WP_PROXY_BYPASS_HOSTS - Will prevent the hosts in this list from going through the proxy.
- * You do not need to have localhost and the blog host in this list, because they will not be passed
- * through the proxy. The list should be presented in a comma separated list</li>
- * </ol>
- *
- * An example can be as seen below.
- * <code>
- * define('WP_PROXY_HOST', '192.168.84.101');
- * define('WP_PROXY_PORT', '8080');
- * define('WP_PROXY_BYPASS_HOSTS', 'localhost, www.example.com');
- * </code>
- *
- * @link http://core.trac.wordpress.org/ticket/4011 Proxy support ticket in WordPress.
- * @since 2.8
- */
-class WP_HTTP_Proxy {
-
-        /**
-         * Whether proxy connection should be used.
-         *
-         * @since 2.8
-         * @use WP_PROXY_HOST
-         * @use WP_PROXY_PORT
-         *
-         * @return bool
-         */
-        function is_enabled() {
-                return defined('WP_PROXY_HOST') && defined('WP_PROXY_PORT');
-        }
-
-        /**
-         * Whether authentication should be used.
-         *
-         * @since 2.8
-         * @use WP_PROXY_USERNAME
-         * @use WP_PROXY_PASSWORD
-         *
-         * @return bool
-         */
-        function use_authentication() {
-                return defined('WP_PROXY_USERNAME') && defined('WP_PROXY_PASSWORD');
-        }
-
-        /**
-         * Retrieve the host for the proxy server.
-         *
-         * @since 2.8
-         *
-         * @return string
-         */
-        function host() {
-                if ( defined('WP_PROXY_HOST') )
-                        return WP_PROXY_HOST;
-
-                return '';
-        }
-
-        /**
-         * Retrieve the port for the proxy server.
-         *
-         * @since 2.8
-         *
-         * @return string
-         */
-        function port() {
-                if ( defined('WP_PROXY_PORT') )
-                        return WP_PROXY_PORT;
-
-                return '';
-        }
-
-        /**
-         * Retrieve the username for proxy authentication.
-         *
-         * @since 2.8
-         *
-         * @return string
-         */
-        function username() {
-                if ( defined('WP_PROXY_USERNAME') )
-                        return WP_PROXY_USERNAME;
-
-                return '';
-        }
-
-        /**
-         * Retrieve the password for proxy authentication.
-         *
-         * @since 2.8
-         *
-         * @return string
-         */
-        function password() {
-                if ( defined('WP_PROXY_PASSWORD') )
-                        return WP_PROXY_PASSWORD;
-
-                return '';
-        }
-
-        /**
-         * Retrieve authentication string for proxy authentication.
-         *
-         * @since 2.8
-         *
-         * @return string
-         */
-        function authentication() {
-                return $this->username() . ':' . $this->password();
-        }
-
-        /**
-         * Retrieve header string for proxy authentication.
-         *
-         * @since 2.8
-         *
-         * @return string
-         */
-        function authentication_header() {
-                return 'Proxy-Authentication: Basic ' . base64_encode( $this->authentication() );
-        }
-
-        /**
-         * Whether URL should be sent through the proxy server.
-         *
-         * We want to keep localhost and the blog URL from being sent through the proxy server, because
-         * some proxies can not handle this. We also have the constant available for defining other
-         * hosts that won't be sent through the proxy.
-         *
-         * @uses WP_PROXY_BYPASS_HOSTS
-         * @since unknown
-         *
-         * @param string $uri URI to check.
-         * @return bool True, to send through the proxy and false if, the proxy should not be used.
-         */
-        function send_through_proxy( $uri ) {
-                // parse_url() only handles http, https type URLs, and will emit E_WARNING on failure.
-                // This will be displayed on blogs, which is not reasonable.
-                $check = @parse_url($uri);
-
-                // Malformed URL, can not process, but this could mean ssl, so let through anyway.
-                if ( $check === false )
-                        return true;
-
-                $home = parse_url( get_option('siteurl') );
-
-                if ( $check['host'] == 'localhost' || $check['host'] == $home['host'] )
-                        return false;
-
-                if ( !defined('WP_PROXY_BYPASS_HOSTS') )
-                        return true;
-
-                static $bypass_hosts;
-                if ( null == $bypass_hosts )
-                        $bypass_hosts = preg_split('|,\s*|', WP_PROXY_BYPASS_HOSTS);
-
-                return !in_array( $check['host'], $bypass_hosts );
-        }
-}
-/**
- * Internal representation of a single cookie.
- *
- * Returned cookies are represented using this class, and when cookies are set, if they are not
- * already a WP_Http_Cookie() object, then they are turned into one.
- *
- * @todo The WordPress convention is to use underscores instead of camelCase for function and method
- * names. Need to switch to use underscores instead for the methods.
- *
- * @package WordPress
- * @subpackage HTTP
- * @since 2.8.0
- * @author Beau Lebens
- */
-class WP_Http_Cookie {
-
-        /**
-         * Cookie name.
-         *
-         * @since 2.8.0
-         * @var string
-         */
-        var $name;
-
-        /**
-         * Cookie value.
-         *
-         * @since 2.8.0
-         * @var string
-         */
-        var $value;
-
-        /**
-         * When the cookie expires.
-         *
-         * @since 2.8.0
-         * @var string
-         */
-        var $expires;
-
-        /**
-         * Cookie URL path.
-         *
-         * @since 2.8.0
-         * @var string
-         */
-        var $path;
-
-        /**
-         * Cookie Domain.
-         *
-         * @since 2.8.0
-         * @var string
-         */
-        var $domain;
-
-        /**
-         * PHP4 style Constructor - Calls PHP5 Style Constructor.
-         *
-         * @access public
-         * @since 2.8.0
-         * @param string|array $data Raw cookie data.
-         */
-        function WP_Http_Cookie( $data ) {
-                $this->__construct( $data );
-        }
-
-        /**
-         * Sets up this cookie object.
-         *
-         * The parameter $data should be either an associative array containing the indices names below
-         * or a header string detailing it.
-         *
-         * If it's an array, it should include the following elements:
-         * <ol>
-         * <li>Name</li>
-         * <li>Value - should NOT be urlencoded already.</li>
-         * <li>Expires - (optional) String or int (UNIX timestamp).</li>
-         * <li>Path (optional)</li>
-         * <li>Domain (optional)</li>
-         * </ol>
-         *
-         * @access public
-         * @since 2.8.0
-         *
-         * @param string|array $data Raw cookie data.
-         */
-        function __construct( $data ) {
-                if ( is_string( $data ) ) {
-                        // Assume it's a header string direct from a previous request
-                        $pairs = explode( ';', $data );
-
-                        // Special handling for first pair; name=value. Also be careful of "=" in value
-                        $name  = trim( substr( $pairs[0], 0, strpos( $pairs[0], '=' ) ) );
-                        $value = substr( $pairs[0], strpos( $pairs[0], '=' ) + 1 );
-                        $this->name  = $name;
-                        $this->value = urldecode( $value );
-                        array_shift( $pairs ); //Removes name=value from items.
-
-                        // Set everything else as a property
-                        foreach ( $pairs as $pair ) {
-                                if ( empty($pair) ) //Handles the cookie ending in ; which results in a empty final pair
-                                        continue;
-
-                                list( $key, $val ) = explode( '=', $pair );
-                                $key = strtolower( trim( $key ) );
-                                if ( 'expires' == $key )
-                                        $val = strtotime( $val );
-                                $this->$key = $val;
-                        }
-                } else {
-                        if ( !isset( $data['name'] ) )
-                                return false;
-
-                        // Set properties based directly on parameters
-                        $this->name   = $data['name'];
-                        $this->value  = isset( $data['value'] ) ? $data['value'] : '';
-                        $this->path   = isset( $data['path'] ) ? $data['path'] : '';
-                        $this->domain = isset( $data['domain'] ) ? $data['domain'] : '';
-
-                        if ( isset( $data['expires'] ) )
-                                $this->expires = is_int( $data['expires'] ) ? $data['expires'] : strtotime( $data['expires'] );
-                        else
-                                $this->expires = null;
-                }
-        }
-
-        /**
-         * Confirms that it's OK to send this cookie to the URL checked against.
-         *
-         * Decision is based on RFC 2109/2965, so look there for details on validity.
-         *
-         * @access public
-         * @since 2.8.0
-         *
-         * @param string $url URL you intend to send this cookie to
-         * @return boolean TRUE if allowed, FALSE otherwise.
-         */
-        function test( $url ) {
-                // Expires - if expired then nothing else matters
-                if ( time() > $this->expires )
-                        return false;
-
-                // Get details on the URL we're thinking about sending to
-                $url = parse_url( $url );
-                $url['port'] = isset( $url['port'] ) ? $url['port'] : 80;
-                $url['path'] = isset( $url['path'] ) ? $url['path'] : '/';
-
-                // Values to use for comparison against the URL
-                $path   = isset( $this->path )   ? $this->path   : '/';
-                $port   = isset( $this->port )   ? $this->port   : 80;
-                $domain = isset( $this->domain ) ? strtolower( $this->domain ) : strtolower( $url['host'] );
-                if ( false === stripos( $domain, '.' ) )
-                        $domain .= '.local';
-
-                // Host - very basic check that the request URL ends with the domain restriction (minus leading dot)
-                $domain = substr( $domain, 0, 1 ) == '.' ? substr( $domain, 1 ) : $domain;
-                if ( substr( $url['host'], -strlen( $domain ) ) != $domain )
-                        return false;
-
-                // Port - supports "port-lists" in the format: "80,8000,8080"
-                if ( !in_array( $url['port'], explode( ',', $port) ) )
-                        return false;
-
-                // Path - request path must start with path restriction
-                if ( substr( $url['path'], 0, strlen( $path ) ) != $path )
-                        return false;
-
-                return true;
-        }
-
-        /**
-         * Convert cookie name and value back to header string.
-         *
-         * @access public
-         * @since 2.8.0
-         *
-         * @return string Header encoded cookie name and value.
-         */
-        function getHeaderValue() {
-                if ( empty( $this->name ) || empty( $this->value ) )
-                        return '';
-
-                return $this->name . '=' . urlencode( $this->value );
-        }
-
-        /**
-         * Retrieve cookie header for usage in the rest of the WordPress HTTP API.
-         *
-         * @access public
-         * @since 2.8.0
-         *
-         * @return string
-         */
-        function getFullHeader() {
-                return 'Cookie: ' . $this->getHeaderValue();
-        }
-}
-
-/**
- * Implementation for deflate and gzip transfer encodings.
- *
- * Includes RFC 1950, RFC 1951, and RFC 1952.
- *
- * @since 2.8
- * @package WordPress
- * @subpackage HTTP
- */
-class WP_Http_Encoding {
-
-        /**
-         * Compress raw string using the deflate format.
-         *
-         * Supports the RFC 1951 standard.
-         *
-         * @since 2.8
-         *
-         * @param string $raw String to compress.
-         * @param int $level Optional, default is 9. Compression level, 9 is highest.
-         * @param string $supports Optional, not used. When implemented it will choose the right compression based on what the server supports.
-         * @return string|bool False on failure.
-         */
-        function compress( $raw, $level = 9, $supports = null ) {
-                return gzdeflate( $raw, $level );
-        }
-
-        /**
-         * Decompression of deflated string.
-         *
-         * Will attempt to decompress using the RFC 1950 standard, and if that fails
-         * then the RFC 1951 standard deflate will be attempted. Finally, the RFC
-         * 1952 standard gzip decode will be attempted. If all fail, then the
-         * original compressed string will be returned.
-         *
-         * @since 2.8
-         *
-         * @param string $compressed String to decompress.
-         * @param int $length The optional length of the compressed data.
-         * @return string|bool False on failure.
-         */
-        function decompress( $compressed, $length = null ) {
-
-                if ( empty($compressed) )
-                        return $compressed;
-
-                if ( false !== ( $decompressed = @gzinflate( $compressed ) ) )
-                        return $decompressed;
-
-                if ( false !== ( $decompressed = WP_Http_Encoding::compatible_gzinflate( $compressed ) ) )
-                        return $decompressed;
-
-                if ( false !== ( $decompressed = @gzuncompress( $compressed ) ) )
-                        return $decompressed;
-
-                if ( function_exists('gzdecode') ) {
-                        $decompressed = @gzdecode( $compressed );
-
-                        if ( false !== $decompressed )
-                                return $decompressed;
-                }
-
-                return $compressed;
-        }
-
-        /**
-         * Decompression of deflated string while staying compatible with the majority of servers.
-         *
-         * Certain Servers will return deflated data with headers which PHP's gziniflate()
-         * function cannot handle out of the box. The following function lifted from
-         * http://au2.php.net/manual/en/function.gzinflate.php#77336 will attempt to deflate
-         * the various return forms used.
-         *
-         * @since 2.8.1
-         * @link http://au2.php.net/manual/en/function.gzinflate.php#77336
-         *
-         * @param string $gzData String to decompress.
-         * @return string|bool False on failure.
-         */
-        function compatible_gzinflate($gzData) {
-                if ( substr($gzData, 0, 3) == "\x1f\x8b\x08" ) {
-                        $i = 10;
-                        $flg = ord( substr($gzData, 3, 1) );
-                        if ( $flg > 0 ) {
-                                if ( $flg & 4 ) {
-                                        list($xlen) = unpack('v', substr($gzData, $i, 2) );
-                                        $i = $i + 2 + $xlen;
-                                }
-                                if ( $flg & 8 )
-                                        $i = strpos($gzData, "\0", $i) + 1;
-                                if ( $flg & 16 )
-                                        $i = strpos($gzData, "\0", $i) + 1;
-                                if ( $flg & 2 )
-                                        $i = $i + 2;
-                        }
-                        return gzinflate( substr($gzData, $i, -8) );
-                } else {
-                        return false;
-                }
-        }
-
-        /**
-         * What encoding types to accept and their priority values.
-         *
-         * @since 2.8
-         *
-         * @return string Types of encoding to accept.
-         */
-        function accept_encoding() {
-                $type = array();
-                if ( function_exists( 'gzinflate' ) )
-                        $type[] = 'deflate;q=1.0';
-
-                if ( function_exists( 'gzuncompress' ) )
-                        $type[] = 'compress;q=0.5';
-
-                if ( function_exists( 'gzdecode' ) )
-                        $type[] = 'gzip;q=0.5';
-
-                return implode(', ', $type);
-        }
-
-        /**
-         * What enconding the content used when it was compressed to send in the headers.
-         *
-         * @since 2.8
-         *
-         * @return string Content-Encoding string to send in the header.
-         */
-        function content_encoding() {
-                return 'deflate';
-        }
-
-        /**
-         * Whether the content be decoded based on the headers.
-         *
-         * @since 2.8
-         *
-         * @param array|string $headers All of the available headers.
-         * @return bool
-         */
-        function should_decode($headers) {
-                if ( is_array( $headers ) ) {
-                        if ( array_key_exists('content-encoding', $headers) && ! empty( $headers['content-encoding'] ) )
-                                return true;
-                } else if ( is_string( $headers ) ) {
-                        return ( stripos($headers, 'content-encoding:') !== false );
-                }
-
-                return false;
-        }
-
-        /**
-         * Whether decompression and compression are supported by the PHP version.
-         *
-         * Each function is tested instead of checking for the zlib extension, to
-         * ensure that the functions all exist in the PHP version and aren't
-         * disabled.
-         *
-         * @since 2.8
-         *
-         * @return bool
-         */
-        function is_available() {
-                return ( function_exists('gzuncompress') || function_exists('gzdeflate') || function_exists('gzinflate') );
-        }
-}
-
-/**
- * Returns the initialized WP_Http Object
- *
- * @since 2.7.0
- * @access private
- *
- * @return WP_Http HTTP Transport object.
- */
-function &_wp_http_get_object() {
-        static $http;
-
-        if ( is_null($http) )
-                $http = new WP_Http();
-
-        return $http;
-}
-
-/**
- * Retrieve the raw response from the HTTP request.
- *
- * The array structure is a little complex.
- *
- * <code>
- * $res = array( 'headers' => array(), 'response' => array('code' => int, 'message' => string) );
- * </code>
- *
- * All of the headers in $res['headers'] are with the name as the key and the
- * value as the value. So to get the User-Agent, you would do the following.
- *
- * <code>
- * $user_agent = $res['headers']['user-agent'];
- * </code>
- *
- * The body is the raw response content and can be retrieved from $res['body'].
- *
- * This function is called first to make the request and there are other API
- * functions to abstract out the above convoluted setup.
- *
- * @since 2.7.0
- *
- * @param string $url Site URL to retrieve.
- * @param array $args Optional. Override the defaults.
- * @return WP_Error|array The response or WP_Error on failure.
- */
-function wp_remote_request($url, $args = array()) {
-        $objFetchSite = _wp_http_get_object();
-        return $objFetchSite->request($url, $args);
-}
-
-/**
- * Retrieve the raw response from the HTTP request using the GET method.
- *
- * @see wp_remote_request() For more information on the response array format.
- *
- * @since 2.7.0
- *
- * @param string $url Site URL to retrieve.
- * @param array $args Optional. Override the defaults.
- * @return WP_Error|array The response or WP_Error on failure.
- */
-function wp_remote_get($url, $args = array()) {
-        $objFetchSite = _wp_http_get_object();
-        return $objFetchSite->get($url, $args);
-}
-
-/**
- * Retrieve the raw response from the HTTP request using the POST method.
- *
- * @see wp_remote_request() For more information on the response array format.
- *
- * @since 2.7.0
- *
- * @param string $url Site URL to retrieve.
- * @param array $args Optional. Override the defaults.
- * @return WP_Error|array The response or WP_Error on failure.
- */
-function wp_remote_post($url, $args = array()) {
-        $objFetchSite = _wp_http_get_object();
-        return $objFetchSite->post($url, $args);
-}
-
-/**
- * Retrieve the raw response from the HTTP request using the HEAD method.
- *
- * @see wp_remote_request() For more information on the response array format.
- *
- * @since 2.7.0
- *
- * @param string $url Site URL to retrieve.
- * @param array $args Optional. Override the defaults.
- * @return WP_Error|array The response or WP_Error on failure.
- */
-function wp_remote_head($url, $args = array()) {
-        $objFetchSite = _wp_http_get_object();
-        return $objFetchSite->head($url, $args);
-}
-
-/**
- * Retrieve only the headers from the raw response.
- *
- * @since 2.7.0
- *
- * @param array $response HTTP response.
- * @return array The headers of the response. Empty array if incorrect parameter given.
- */
-function wp_remote_retrieve_headers(&$response) {
-        if ( is_wp_error($response) || ! isset($response['headers']) || ! is_array($response['headers']))
-                return array();
-
-        return $response['headers'];
-}
-
-/**
- * Retrieve a single header by name from the raw response.
- *
- * @since 2.7.0
- *
- * @param array $response
- * @param string $header Header name to retrieve value from.
- * @return string The header value. Empty string on if incorrect parameter given, or if the header doesnt exist.
- */
-function wp_remote_retrieve_header(&$response, $header) {
-        if ( is_wp_error($response) || ! isset($response['headers']) || ! is_array($response['headers']))
-                return '';
-
-        if ( array_key_exists($header, $response['headers']) )
-                return $response['headers'][$header];
-
-        return '';
-}
-
-/**
- * Retrieve only the response code from the raw response.
- *
- * Will return an empty array if incorrect parameter value is given.
- *
- * @since 2.7.0
- *
- * @param array $response HTTP response.
- * @return string the response code. Empty string on incorrect parameter given.
- */
-function wp_remote_retrieve_response_code(&$response) {
-        if ( is_wp_error($response) || ! isset($response['response']) || ! is_array($response['response']))
-                return '';
-
-        return $response['response']['code'];
-}
-
-/**
- * Retrieve only the response message from the raw response.
- *
- * Will return an empty array if incorrect parameter value is given.
- *
- * @since 2.7.0
- *
- * @param array $response HTTP response.
- * @return string The response message. Empty string on incorrect parameter given.
- */
-function wp_remote_retrieve_response_message(&$response) {
-        if ( is_wp_error($response) || ! isset($response['response']) || ! is_array($response['response']))
-                return '';
-
-        return $response['response']['message'];
-}
-
-/**
- * Retrieve only the body from the raw response.
- *
- * @since 2.7.0
- *
- * @param array $response HTTP response.
- * @return string The body of the response. Empty string if no body or incorrect parameter given.
- */
-function wp_remote_retrieve_body(&$response) {
-        if ( is_wp_error($response) || ! isset($response['body']) )
-                return '';
-
-        return $response['body'];
-}
-
-?>
- No newline at end of file