1 <?php

     2 /**

     3  * Simple and uniform HTTP request API.

     4  *

     5  * Will eventually replace and standardize the WordPress HTTP requests made.

     6  *

     7  * @link http://trac.wordpress.org/ticket/4779 HTTP API Proposal

     8  *

     9  * @package WordPress

    10  * @subpackage HTTP

    11  * @since 2.7.0

    12  * @author Jacob Santos <wordpress@santosj.name>

    13  */

    14 

    15 /**

    16  * WordPress HTTP Class for managing HTTP Transports and making HTTP requests.

    17  *

    18  * This class is called for the functionality of making HTTP requests and should replace Snoopy

    19  * functionality, eventually. There is no available functionality to add HTTP transport

    20  * implementations, since most of the HTTP transports are added and available for use.

    21  *

    22  * The exception is that cURL is not available as a transport and lacking an implementation. It will

    23  * be added later and should be a patch on the WordPress Trac.

    24  *

    25  * There are no properties, because none are needed and for performance reasons. Some of the

    26  * functions are static and while they do have some overhead over functions in PHP4, the purpose is

    27  * maintainability. When PHP5 is finally the requirement, it will be easy to add the static keyword

    28  * to the code. It is not as easy to convert a function to a method after enough code uses the old

    29  * way.

    30  *

    31  * Debugging includes several actions, which pass different variables for debugging the HTTP API.

    32  *

    33  * <strong>http_transport_get_debug</strong> - gives working, nonblocking, and blocking transports.

    34  *

    35  * <strong>http_transport_post_debug</strong> - gives working, nonblocking, and blocking transports.

    36  *

    37  * @package WordPress

    38  * @subpackage HTTP

    39  * @since 2.7.0

    40  */

    41 class WP_Http {

    42 

    43 	/**

    44 	 * PHP4 style Constructor - Calls PHP5 Style Constructor

    45 	 *

    46 	 * @since 2.7.0

    47 	 * @return WP_Http

    48 	 */

    49 	function WP_Http() {

    50 		$this->__construct();

    51 	}

    52 

    53 	/**

    54 	 * PHP5 style Constructor - Setup available transport if not available.

    55 	 *

    56 	 * PHP4 does not have the 'self' keyword and since WordPress supports PHP4,

    57 	 * the class needs to be used for the static call.

    58 	 *

    59 	 * The transport are setup to save time. This should only be called once, so

    60 	 * the overhead should be fine.

    61 	 *

    62 	 * @since 2.7.0

    63 	 * @return WP_Http

    64 	 */

    65 	function __construct() {

    66 		WP_Http::_getTransport();

    67 		WP_Http::_postTransport();

    68 	}

    69 

    70 	/**

    71 	 * Tests the WordPress HTTP objects for an object to use and returns it.

    72 	 *

    73 	 * Tests all of the objects and returns the object that passes. Also caches

    74 	 * that object to be used later.

    75 	 *

    76 	 * The order for the GET/HEAD requests are Streams, HTTP Extension, Fopen,

    77 	 * and finally Fsockopen. fsockopen() is used last, because it has the most

    78 	 * overhead in its implementation. There isn't any real way around it, since

    79 	 * redirects have to be supported, much the same way the other transports

    80 	 * also handle redirects.

    81 	 *

    82 	 * There are currently issues with "localhost" not resolving correctly with

    83 	 * DNS. This may cause an error "failed to open stream: A connection attempt

    84 	 * failed because the connected party did not properly respond after a

    85 	 * period of time, or established connection failed because connected host

    86 	 * has failed to respond."

    87 	 *

    88 	 * @since 2.7.0

    89 	 * @access private

    90 	 *

    91 	 * @param array $args Request args, default us an empty array

    92 	 * @return object|null Null if no transports are available, HTTP transport object.

    93 	 */

    94 	function &_getTransport( $args = array() ) {

    95 		static $working_transport, $blocking_transport, $nonblocking_transport;

    96 

    97 		if ( is_null($working_transport) ) {

    98 			if ( true === WP_Http_ExtHttp::test($args) ) {

    99 				$working_transport['exthttp'] = new WP_Http_ExtHttp();

   100 				$blocking_transport[] = &$working_transport['exthttp'];

   101 			} else if ( true === WP_Http_Curl::test($args) ) {

   102 				$working_transport['curl'] = new WP_Http_Curl();

   103 				$blocking_transport[] = &$working_transport['curl'];

   104 			} else if ( true === WP_Http_Streams::test($args) ) {

   105 				$working_transport['streams'] = new WP_Http_Streams();

   106 				$blocking_transport[] = &$working_transport['streams'];

   107 			} else if ( true === WP_Http_Fopen::test($args) ) {

   108 				$working_transport['fopen'] = new WP_Http_Fopen();

   109 				$blocking_transport[] = &$working_transport['fopen'];

   110 			} else if ( true === WP_Http_Fsockopen::test($args) ) {

   111 				$working_transport['fsockopen'] = new WP_Http_Fsockopen();

   112 				$blocking_transport[] = &$working_transport['fsockopen'];

   113 			}

   114 

   115 			foreach ( array('curl', 'streams', 'fopen', 'fsockopen', 'exthttp') as $transport ) {

   116 				if ( isset($working_transport[$transport]) )

   117 					$nonblocking_transport[] = &$working_transport[$transport];

   118 			}

   119 		}

   120 

   121 		if ( has_filter('http_transport_get_debug') )

   122 			do_action('http_transport_get_debug', $working_transport, $blocking_transport, $nonblocking_transport);

   123 

   124 		if ( isset($args['blocking']) && !$args['blocking'] )

   125 			return $nonblocking_transport;

   126 		else

   127 			return $blocking_transport;

   128 	}

   129 

   130 	/**

   131 	 * Tests the WordPress HTTP objects for an object to use and returns it.

   132 	 *

   133 	 * Tests all of the objects and returns the object that passes. Also caches

   134 	 * that object to be used later. This is for posting content to a URL and

   135 	 * is used when there is a body. The plain Fopen Transport can not be used

   136 	 * to send content, but the streams transport can. This is a limitation that

   137 	 * is addressed here, by just not including that transport.

   138 	 *

   139 	 * @since 2.7.0

   140 	 * @access private

   141 	 *

   142 	 * @param array $args Request args, default us an empty array

   143 	 * @return object|null Null if no transports are available, HTTP transport object.

   144 	 */

   145 	function &_postTransport( $args = array() ) {

   146 		static $working_transport, $blocking_transport, $nonblocking_transport;

   147 

   148 		if ( is_null($working_transport) ) {

   149 			if ( true === WP_Http_ExtHttp::test($args) ) {

   150 				$working_transport['exthttp'] = new WP_Http_ExtHttp();

   151 				$blocking_transport[] = &$working_transport['exthttp'];

   152 			} else if ( true === WP_Http_Curl::test($args) ) {

   153 				$working_transport['curl'] = new WP_Http_Curl();

   154 				$blocking_transport[] = &$working_transport['curl'];

   155 			} else if ( true === WP_Http_Streams::test($args) ) {

   156 				$working_transport['streams'] = new WP_Http_Streams();

   157 				$blocking_transport[] = &$working_transport['streams'];

   158 			} else if ( true === WP_Http_Fsockopen::test($args) ) {

   159 				$working_transport['fsockopen'] = new WP_Http_Fsockopen();

   160 				$blocking_transport[] = &$working_transport['fsockopen'];

   161 			}

   162 

   163 			foreach ( array('curl', 'streams', 'fsockopen', 'exthttp') as $transport ) {

   164 				if ( isset($working_transport[$transport]) )

   165 					$nonblocking_transport[] = &$working_transport[$transport];

   166 			}

   167 		}

   168 

   169 		if ( has_filter('http_transport_post_debug') )

   170 			do_action('http_transport_post_debug', $working_transport, $blocking_transport, $nonblocking_transport);

   171 

   172 		if ( isset($args['blocking']) && !$args['blocking'] )

   173 			return $nonblocking_transport;

   174 		else

   175 			return $blocking_transport;

   176 	}

   177 

   178 	/**

   179 	 * Send a HTTP request to a URI.

   180 	 *

   181 	 * The body and headers are part of the arguments. The 'body' argument is for the body and will

   182 	 * accept either a string or an array. The 'headers' argument should be an array, but a string

   183 	 * is acceptable. If the 'body' argument is an array, then it will automatically be escaped

   184 	 * using http_build_query().

   185 	 *

   186 	 * The only URI that are supported in the HTTP Transport implementation are the HTTP and HTTPS

   187 	 * protocols. HTTP and HTTPS are assumed so the server might not know how to handle the send

   188 	 * headers. Other protocols are unsupported and most likely will fail.

   189 	 *

   190 	 * The defaults are 'method', 'timeout', 'redirection', 'httpversion', 'blocking' and

   191 	 * 'user-agent'.

   192 	 *

   193 	 * Accepted 'method' values are 'GET', 'POST', and 'HEAD', some transports technically allow

   194 	 * others, but should not be assumed. The 'timeout' is used to sent how long the connection

   195 	 * should stay open before failing when no response. 'redirection' is used to track how many

   196 	 * redirects were taken and used to sent the amount for other transports, but not all transports

   197 	 * accept setting that value.

   198 	 *

   199 	 * The 'httpversion' option is used to sent the HTTP version and accepted values are '1.0', and

   200 	 * '1.1' and should be a string. Version 1.1 is not supported, because of chunk response. The

   201 	 * 'user-agent' option is the user-agent and is used to replace the default user-agent, which is

   202 	 * 'WordPress/WP_Version', where WP_Version is the value from $wp_version.

   203 	 *

   204 	 * 'blocking' is the default, which is used to tell the transport, whether it should halt PHP

   205 	 * while it performs the request or continue regardless. Actually, that isn't entirely correct.

   206 	 * Blocking mode really just means whether the fread should just pull what it can whenever it

   207 	 * gets bytes or if it should wait until it has enough in the buffer to read or finishes reading

   208 	 * the entire content. It doesn't actually always mean that PHP will continue going after making

   209 	 * the request.

   210 	 *

   211 	 * @access public

   212 	 * @since 2.7.0

   213 	 *

   214 	 * @param string $url URI resource.

   215 	 * @param str|array $args Optional. Override the defaults.

   216 	 * @return array containing 'headers', 'body', 'response', 'cookies'

   217 	 */

   218 	function request( $url, $args = array() ) {

   219 		global $wp_version;

   220 

   221 		$defaults = array(

   222 			'method' => 'GET',

   223 			'timeout' => apply_filters( 'http_request_timeout', 5),

   224 			'redirection' => apply_filters( 'http_request_redirection_count', 5),

   225 			'httpversion' => apply_filters( 'http_request_version', '1.0'),

   226 			'user-agent' => apply_filters( 'http_headers_useragent', 'WordPress/' . $wp_version . '; ' . get_bloginfo( 'url' )  ),

   227 			'blocking' => true,

   228 			'headers' => array(),

   229 			'cookies' => array(),

   230 			'body' => null,

   231 			'compress' => false,

   232 			'decompress' => true,

   233 			'sslverify' => true

   234 		);

   235 

   236 		$r = wp_parse_args( $args, $defaults );

   237 		$r = apply_filters( 'http_request_args', $r, $url );

   238 

   239 		$arrURL = parse_url($url);

   240 

   241 		if ( $this->block_request( $url ) )

   242 			return new WP_Error('http_request_failed', __('User has blocked requests through HTTP.'));

   243 

   244 		// Determine if this is a https call and pass that on to the transport functions

   245 		// so that we can blacklist the transports that do not support ssl verification

   246 		$r['ssl'] = $arrURL['scheme'] == 'https' || $arrURL['scheme'] == 'ssl';

   247 

   248 		// Determine if this request is to OUR install of WordPress

   249 		$homeURL = parse_url(get_bloginfo('url'));

   250 		$r['local'] = $homeURL['host'] == $arrURL['host'] || 'localhost' == $arrURL['host'];

   251 		unset($homeURL);

   252 

   253 		if ( is_null( $r['headers'] ) )

   254 			$r['headers'] = array();

   255 

   256 		if ( ! is_array($r['headers']) ) {

   257 			$processedHeaders = WP_Http::processHeaders($r['headers']);

   258 			$r['headers'] = $processedHeaders['headers'];

   259 		}

   260 

   261 		if ( isset($r['headers']['User-Agent']) ) {

   262 			$r['user-agent'] = $r['headers']['User-Agent'];

   263 			unset($r['headers']['User-Agent']);

   264 		}

   265 

   266 		if ( isset($r['headers']['user-agent']) ) {

   267 			$r['user-agent'] = $r['headers']['user-agent'];

   268 			unset($r['headers']['user-agent']);

   269 		}

   270 

   271 		// Construct Cookie: header if any cookies are set

   272 		WP_Http::buildCookieHeader( $r );

   273 

   274 		if ( WP_Http_Encoding::is_available() )

   275 			$r['headers']['Accept-Encoding'] = WP_Http_Encoding::accept_encoding();

   276 

   277 		if ( is_null($r['body']) ) {

   278 			// Some servers fail when sending content without the content-length

   279 			// header being set.

   280 			$r['headers']['Content-Length'] = 0;

   281 			$transports = WP_Http::_getTransport($r);

   282 		} else {

   283 			if ( is_array( $r['body'] ) || is_object( $r['body'] ) ) {

   284 				if ( ! version_compare(phpversion(), '5.1.2', '>=') )

   285 					$r['body'] = _http_build_query($r['body'], null, '&');

   286 				else

   287 					$r['body'] = http_build_query($r['body'], null, '&');

   288 				$r['headers']['Content-Type'] = 'application/x-www-form-urlencoded; charset=' . get_option('blog_charset');

   289 				$r['headers']['Content-Length'] = strlen($r['body']);

   290 			}

   291 

   292 			if ( ! isset( $r['headers']['Content-Length'] ) && ! isset( $r['headers']['content-length'] ) )

   293 				$r['headers']['Content-Length'] = strlen($r['body']);

   294 

   295 			$transports = WP_Http::_postTransport($r);

   296 		}

   297 

   298 		if ( has_action('http_api_debug') )

   299 			do_action('http_api_debug', $transports, 'transports_list');

   300 

   301 		$response = array( 'headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array() );

   302 		foreach ( (array) $transports as $transport ) {

   303 			$response = $transport->request($url, $r);

   304 

   305 			if ( has_action('http_api_debug') )

   306 				do_action( 'http_api_debug', $response, 'response', get_class($transport) );

   307 

   308 			if ( ! is_wp_error($response) )

   309 				return $response;

   310 		}

   311 

   312 		return $response;

   313 	}

   314 

   315 	/**

   316 	 * Uses the POST HTTP method.

   317 	 *

   318 	 * Used for sending data that is expected to be in the body.

   319 	 *

   320 	 * @access public

   321 	 * @since 2.7.0

   322 	 *

   323 	 * @param string $url URI resource.

   324 	 * @param str|array $args Optional. Override the defaults.

   325 	 * @return boolean

   326 	 */

   327 	function post($url, $args = array()) {

   328 		$defaults = array('method' => 'POST');

   329 		$r = wp_parse_args( $args, $defaults );

   330 		return $this->request($url, $r);

   331 	}

   332 

   333 	/**

   334 	 * Uses the GET HTTP method.

   335 	 *

   336 	 * Used for sending data that is expected to be in the body.

   337 	 *

   338 	 * @access public

   339 	 * @since 2.7.0

   340 	 *

   341 	 * @param string $url URI resource.

   342 	 * @param str|array $args Optional. Override the defaults.

   343 	 * @return boolean

   344 	 */

   345 	function get($url, $args = array()) {

   346 		$defaults = array('method' => 'GET');

   347 		$r = wp_parse_args( $args, $defaults );

   348 		return $this->request($url, $r);

   349 	}

   350 

   351 	/**

   352 	 * Uses the HEAD HTTP method.

   353 	 *

   354 	 * Used for sending data that is expected to be in the body.

   355 	 *

   356 	 * @access public

   357 	 * @since 2.7.0

   358 	 *

   359 	 * @param string $url URI resource.

   360 	 * @param str|array $args Optional. Override the defaults.

   361 	 * @return boolean

   362 	 */

   363 	function head($url, $args = array()) {

   364 		$defaults = array('method' => 'HEAD');

   365 		$r = wp_parse_args( $args, $defaults );

   366 		return $this->request($url, $r);

   367 	}

   368 

   369 	/**

   370 	 * Parses the responses and splits the parts into headers and body.

   371 	 *

   372 	 * @access public

   373 	 * @static

   374 	 * @since 2.7.0

   375 	 *

   376 	 * @param string $strResponse The full response string

   377 	 * @return array Array with 'headers' and 'body' keys.

   378 	 */

   379 	function processResponse($strResponse) {

   380 		list($theHeaders, $theBody) = explode("\r\n\r\n", $strResponse, 2);

   381 		return array('headers' => $theHeaders, 'body' => $theBody);

   382 	}

   383 

   384 	/**

   385 	 * Transform header string into an array.

   386 	 *

   387 	 * If an array is given then it is assumed to be raw header data with numeric keys with the

   388 	 * headers as the values. No headers must be passed that were already processed.

   389 	 *

   390 	 * @access public

   391 	 * @static

   392 	 * @since 2.7.0

   393 	 *

   394 	 * @param string|array $headers

   395 	 * @return array Processed string headers. If duplicate headers are encountered,

   396 	 * 					Then a numbered array is returned as the value of that header-key.

   397 	 */

   398 	function processHeaders($headers) {

   399 		// split headers, one per array element

   400 		if ( is_string($headers) ) {

   401 			// tolerate line terminator: CRLF = LF (RFC 2616 19.3)

   402 			$headers = str_replace("\r\n", "\n", $headers);

   403 			// unfold folded header fields. LWS = [CRLF] 1*( SP | HT ) <US-ASCII SP, space (32)>, <US-ASCII HT, horizontal-tab (9)> (RFC 2616 2.2)

   404 			$headers = preg_replace('/\n[ \t]/', ' ', $headers);

   405 			// create the headers array

   406 			$headers = explode("\n", $headers);

   407 		}

   408 

   409 		$response = array('code' => 0, 'message' => '');

   410 

   411 		$cookies = array();

   412 		$newheaders = array();

   413 		foreach ( $headers as $tempheader ) {

   414 			if ( empty($tempheader) )

   415 				continue;

   416 

   417 			if ( false === strpos($tempheader, ':') ) {

   418 				list( , $iResponseCode, $strResponseMsg) = explode(' ', $tempheader, 3);

   419 				$response['code'] = $iResponseCode;

   420 				$response['message'] = $strResponseMsg;

   421 				continue;

   422 			}

   423 

   424 			list($key, $value) = explode(':', $tempheader, 2);

   425 

   426 			if ( !empty( $value ) ) {

   427 				$key = strtolower( $key );

   428 				if ( isset( $newheaders[$key] ) ) {

   429 					$newheaders[$key] = array( $newheaders[$key], trim( $value ) );

   430 				} else {

   431 					$newheaders[$key] = trim( $value );

   432 				}

   433 				if ( 'set-cookie' == strtolower( $key ) )

   434 					$cookies[] = new WP_Http_Cookie( $value );

   435 			}

   436 		}

   437 

   438 		return array('response' => $response, 'headers' => $newheaders, 'cookies' => $cookies);

   439 	}

   440 

   441 	/**

   442 	 * Takes the arguments for a ::request() and checks for the cookie array.

   443 	 *

   444 	 * If it's found, then it's assumed to contain WP_Http_Cookie objects, which are each parsed

   445 	 * into strings and added to the Cookie: header (within the arguments array). Edits the array by

   446 	 * reference.

   447 	 *

   448 	 * @access public

   449 	 * @version 2.8.0

   450 	 * @static

   451 	 *

   452 	 * @param array $r Full array of args passed into ::request()

   453 	 */

   454 	function buildCookieHeader( &$r ) {

   455 		if ( ! empty($r['cookies']) ) {

   456 			$cookies_header = '';

   457 			foreach ( (array) $r['cookies'] as $cookie ) {

   458 				$cookies_header .= $cookie->getHeaderValue() . '; ';

   459 			}

   460 			$cookies_header = substr( $cookies_header, 0, -2 );

   461 			$r['headers']['cookie'] = $cookies_header;

   462 		}

   463 	}

   464 

   465 	/**

   466 	 * Decodes chunk transfer-encoding, based off the HTTP 1.1 specification.

   467 	 *

   468 	 * Based off the HTTP http_encoding_dechunk function. Does not support UTF-8. Does not support

   469 	 * returning footer headers. Shouldn't be too difficult to support it though.

   470 	 *

   471 	 * @todo Add support for footer chunked headers.

   472 	 * @access public

   473 	 * @since 2.7.0

   474 	 * @static

   475 	 *

   476 	 * @param string $body Body content

   477 	 * @return string Chunked decoded body on success or raw body on failure.

   478 	 */

   479 	function chunkTransferDecode($body) {

   480 		$body = str_replace(array("\r\n", "\r"), "\n", $body);

   481 		// The body is not chunked encoding or is malformed.

   482 		if ( ! preg_match( '/^[0-9a-f]+(\s|\n)+/mi', trim($body) ) )

   483 			return $body;

   484 

   485 		$parsedBody = '';

   486 		//$parsedHeaders = array(); Unsupported

   487 

   488 		while ( true ) {

   489 			$hasChunk = (bool) preg_match( '/^([0-9a-f]+)(\s|\n)+/mi', $body, $match );

   490 

   491 			if ( $hasChunk ) {

   492 				if ( empty( $match[1] ) )

   493 					return $body;

   494 

   495 				$length = hexdec( $match[1] );

   496 				$chunkLength = strlen( $match[0] );

   497 

   498 				$strBody = substr($body, $chunkLength, $length);

   499 				$parsedBody .= $strBody;

   500 

   501 				$body = ltrim(str_replace(array($match[0], $strBody), '', $body), "\n");

   502 

   503 				if ( "0" == trim($body) )

   504 					return $parsedBody; // Ignore footer headers.

   505 			} else {

   506 				return $body;

   507 			}

   508 		}

   509 	}

   510 

   511 	/**

   512 	 * Block requests through the proxy.

   513 	 *

   514 	 * Those who are behind a proxy and want to prevent access to certain hosts may do so. This will

   515 	 * prevent plugins from working and core functionality, if you don't include api.wordpress.org.

   516 	 *

   517 	 * You block external URL requests by defining WP_HTTP_BLOCK_EXTERNAL in your wp-config.php file

   518 	 * and this will only allow localhost and your blog to make requests. The constant

   519 	 * WP_ACCESSIBLE_HOSTS will allow additional hosts to go through for requests. The format of the

   520 	 * WP_ACCESSIBLE_HOSTS constant is a comma separated list of hostnames to allow.

   521 	 *

   522 	 * @since 2.8.0

   523 	 * @link http://core.trac.wordpress.org/ticket/8927 Allow preventing external requests.

   524 	 *

   525 	 * @param string $uri URI of url.

   526 	 * @return bool True to block, false to allow.

   527 	 */

   528 	function block_request($uri) {

   529 		// We don't need to block requests, because nothing is blocked.

   530 		if ( ! defined('WP_HTTP_BLOCK_EXTERNAL') || ( defined('WP_HTTP_BLOCK_EXTERNAL') && WP_HTTP_BLOCK_EXTERNAL == false ) )

   531 			return false;

   532 

   533 		// parse_url() only handles http, https type URLs, and will emit E_WARNING on failure.

   534 		// This will be displayed on blogs, which is not reasonable.

   535 		$check = @parse_url($uri);

   536 

   537 		/* Malformed URL, can not process, but this could mean ssl, so let through anyway.

   538 		 *

   539 		 * This isn't very security sound. There are instances where a hacker might attempt

   540 		 * to bypass the proxy and this check. However, the reason for this behavior is that

   541 		 * WordPress does not do any checking currently for non-proxy requests, so it is keeps with

   542 		 * the default unsecure nature of the HTTP request.

   543 		 */

   544 		if ( $check === false )

   545 			return false;

   546 

   547 		$home = parse_url( get_option('siteurl') );

   548 

   549 		// Don't block requests back to ourselves by default

   550 		if ( $check['host'] == 'localhost' || $check['host'] == $home['host'] )

   551 			return apply_filters('block_local_requests', false);

   552 

   553 		if ( !defined('WP_ACCESSIBLE_HOSTS') )

   554 			return true;

   555 

   556 		static $accessible_hosts;

   557 		if ( null == $accessible_hosts )

   558 			$accessible_hosts = preg_split('|,\s*|', WP_ACCESSIBLE_HOSTS);

   559 

   560 		return !in_array( $check['host'], $accessible_hosts ); //Inverse logic, If its in the array, then we can't access it.

   561 	}

   562 }

   563 

   564 /**

   565  * HTTP request method uses fsockopen function to retrieve the url.

   566  *

   567  * This would be the preferred method, but the fsockopen implementation has the most overhead of all

   568  * the HTTP transport implementations.

   569  *

   570  * @package WordPress

   571  * @subpackage HTTP

   572  * @since 2.7.0

   573  */

   574 class WP_Http_Fsockopen {

   575 	/**

   576 	 * Send a HTTP request to a URI using fsockopen().

   577 	 *

   578 	 * Does not support non-blocking mode.

   579 	 *

   580 	 * @see WP_Http::request For default options descriptions.

   581 	 *

   582 	 * @since 2.7

   583 	 * @access public

   584 	 * @param string $url URI resource.

   585 	 * @param str|array $args Optional. Override the defaults.

   586 	 * @return array 'headers', 'body', 'cookies' and 'response' keys.

   587 	 */

   588 	function request($url, $args = array()) {

   589 		$defaults = array(

   590 			'method' => 'GET', 'timeout' => 5,

   591 			'redirection' => 5, 'httpversion' => '1.0',

   592 			'blocking' => true,

   593 			'headers' => array(), 'body' => null, 'cookies' => array()

   594 		);

   595 

   596 		$r = wp_parse_args( $args, $defaults );

   597 

   598 		if ( isset($r['headers']['User-Agent']) ) {

   599 			$r['user-agent'] = $r['headers']['User-Agent'];

   600 			unset($r['headers']['User-Agent']);

   601 		} else if( isset($r['headers']['user-agent']) ) {

   602 			$r['user-agent'] = $r['headers']['user-agent'];

   603 			unset($r['headers']['user-agent']);

   604 		}

   605 

   606 		// Construct Cookie: header if any cookies are set

   607 		WP_Http::buildCookieHeader( $r );

   608 

   609 		$iError = null; // Store error number

   610 		$strError = null; // Store error string

   611 

   612 		$arrURL = parse_url($url);

   613 

   614 		$fsockopen_host = $arrURL['host'];

   615 

   616 		$secure_transport = false;

   617 

   618 		if ( ! isset( $arrURL['port'] ) ) {

   619 			if ( ( $arrURL['scheme'] == 'ssl' || $arrURL['scheme'] == 'https' ) && extension_loaded('openssl') ) {

   620 				$fsockopen_host = "ssl://$fsockopen_host";

   621 				$arrURL['port'] = 443;

   622 				$secure_transport = true;

   623 			} else {

   624 				$arrURL['port'] = 80;

   625 			}

   626 		}

   627 

   628 		// There are issues with the HTTPS and SSL protocols that cause errors that can be safely

   629 		// ignored and should be ignored.

   630 		if ( true === $secure_transport )

   631 			$error_reporting = error_reporting(0);

   632 

   633 		$startDelay = time();

   634 

   635 		$proxy = new WP_HTTP_Proxy();

   636 

   637 		if ( !defined('WP_DEBUG') || ( defined('WP_DEBUG') && false === WP_DEBUG ) ) {

   638 			if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) )

   639 				$handle = @fsockopen( $proxy->host(), $proxy->port(), $iError, $strError, $r['timeout'] );

   640 			else

   641 				$handle = @fsockopen( $fsockopen_host, $arrURL['port'], $iError, $strError, $r['timeout'] );

   642 		} else {

   643 			if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) )

   644 				$handle = fsockopen( $proxy->host(), $proxy->port(), $iError, $strError, $r['timeout'] );

   645 			else

   646 				$handle = fsockopen( $fsockopen_host, $arrURL['port'], $iError, $strError, $r['timeout'] );

   647 		}

   648 

   649 		$endDelay = time();

   650 

   651 		// If the delay is greater than the timeout then fsockopen should't be used, because it will

   652 		// cause a long delay.

   653 		$elapseDelay = ($endDelay-$startDelay) > $r['timeout'];

   654 		if ( true === $elapseDelay )

   655 			add_option( 'disable_fsockopen', $endDelay, null, true );

   656 

   657 		if ( false === $handle )

   658 			return new WP_Error('http_request_failed', $iError . ': ' . $strError);

   659 

   660 		stream_set_timeout($handle, $r['timeout'] );

   661 

   662 		if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) //Some proxies require full URL in this field.

   663 			$requestPath = $url;

   664 		else

   665 			$requestPath = $arrURL['path'] . ( isset($arrURL['query']) ? '?' . $arrURL['query'] : '' );

   666 

   667 		if ( empty($requestPath) )

   668 			$requestPath .= '/';

   669 

   670 		$strHeaders = strtoupper($r['method']) . ' ' . $requestPath . ' HTTP/' . $r['httpversion'] . "\r\n";

   671 

   672 		if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) )

   673 			$strHeaders .= 'Host: ' . $arrURL['host'] . ':' . $arrURL['port'] . "\r\n";

   674 		else

   675 			$strHeaders .= 'Host: ' . $arrURL['host'] . "\r\n";

   676 

   677 		if ( isset($r['user-agent']) )

   678 			$strHeaders .= 'User-agent: ' . $r['user-agent'] . "\r\n";

   679 

   680 		if ( is_array($r['headers']) ) {

   681 			foreach ( (array) $r['headers'] as $header => $headerValue )

   682 				$strHeaders .= $header . ': ' . $headerValue . "\r\n";

   683 		} else {

   684 			$strHeaders .= $r['headers'];

   685 		}

   686 

   687 		if ( $proxy->use_authentication() )

   688 			$strHeaders .= $proxy->authentication_header() . "\r\n";

   689 

   690 		$strHeaders .= "\r\n";

   691 

   692 		if ( ! is_null($r['body']) )

   693 			$strHeaders .= $r['body'];

   694 

   695 		fwrite($handle, $strHeaders);

   696 

   697 		if ( ! $r['blocking'] ) {

   698 			fclose($handle);

   699 			return array( 'headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array() );

   700 		}

   701 

   702 		$strResponse = '';

   703 		while ( ! feof($handle) )

   704 			$strResponse .= fread($handle, 4096);

   705 

   706 		fclose($handle);

   707 

   708 		if ( true === $secure_transport )

   709 			error_reporting($error_reporting);

   710 

   711 		$process = WP_Http::processResponse($strResponse);

   712 		$arrHeaders = WP_Http::processHeaders($process['headers']);

   713 

   714 		// Is the response code within the 400 range?

   715 		if ( (int) $arrHeaders['response']['code'] >= 400 && (int) $arrHeaders['response']['code'] < 500 )

   716 			return new WP_Error('http_request_failed', $arrHeaders['response']['code'] . ': ' . $arrHeaders['response']['message']);

   717 

   718 		// If location is found, then assume redirect and redirect to location.

   719 		if ( isset($arrHeaders['headers']['location']) ) {

   720 			if ( $r['redirection']-- > 0 ) {

   721 				return $this->request($arrHeaders['headers']['location'], $r);

   722 			} else {

   723 				return new WP_Error('http_request_failed', __('Too many redirects.'));

   724 			}

   725 		}

   726 

   727 		// If the body was chunk encoded, then decode it.

   728 		if ( ! empty( $process['body'] ) && isset( $arrHeaders['headers']['transfer-encoding'] ) && 'chunked' == $arrHeaders['headers']['transfer-encoding'] )

   729 			$process['body'] = WP_Http::chunkTransferDecode($process['body']);

   730 

   731 		if ( true === $r['decompress'] && true === WP_Http_Encoding::should_decode($arrHeaders['headers']) )

   732 			$process['body'] = WP_Http_Encoding::decompress( $process['body'] );

   733 

   734 		return array('headers' => $arrHeaders['headers'], 'body' => $process['body'], 'response' => $arrHeaders['response'], 'cookies' => $arrHeaders['cookies']);

   735 	}

   736 

   737 	/**

   738 	 * Whether this class can be used for retrieving an URL.

   739 	 *

   740 	 * @since 2.7.0

   741 	 * @static

   742 	 * @return boolean False means this class can not be used, true means it can.

   743 	 */

   744 	function test( $args = array() ) {

   745 		if ( false !== ($option = get_option( 'disable_fsockopen' )) && time()-$option < 43200 ) // 12 hours

   746 			return false;

   747 

   748 		$is_ssl = isset($args['ssl']) && $args['ssl'];

   749 

   750 		if ( ! $is_ssl && function_exists( 'fsockopen' ) )

   751 			$use = true;

   752 		elseif ( $is_ssl && extension_loaded('openssl') && function_exists( 'fsockopen' ) )

   753 			$use = true;

   754 		else

   755 			$use = false;

   756 

   757 		return apply_filters('use_fsockopen_transport', $use, $args);

   758 	}

   759 }

   760 

   761 /**

   762  * HTTP request method uses fopen function to retrieve the url.

   763  *

   764  * Requires PHP version greater than 4.3.0 for stream support. Does not allow for $context support,

   765  * but should still be okay, to write the headers, before getting the response. Also requires that

   766  * 'allow_url_fopen' to be enabled.

   767  *

   768  * @package WordPress

   769  * @subpackage HTTP

   770  * @since 2.7.0

   771  */

   772 class WP_Http_Fopen {

   773 	/**

   774 	 * Send a HTTP request to a URI using fopen().

   775 	 *

   776 	 * This transport does not support sending of headers and body, therefore should not be used in

   777 	 * the instances, where there is a body and headers.

   778 	 *

   779 	 * Notes: Does not support non-blocking mode. Ignores 'redirection' option.

   780 	 *

   781 	 * @see WP_Http::retrieve For default options descriptions.

   782 	 *

   783 	 * @access public

   784 	 * @since 2.7.0

   785 	 *

   786 	 * @param string $url URI resource.

   787 	 * @param str|array $args Optional. Override the defaults.

   788 	 * @return array 'headers', 'body', 'cookies' and 'response' keys.

   789 	 */

   790 	function request($url, $args = array()) {

   791 		$defaults = array(

   792 			'method' => 'GET', 'timeout' => 5,

   793 			'redirection' => 5, 'httpversion' => '1.0',

   794 			'blocking' => true,

   795 			'headers' => array(), 'body' => null, 'cookies' => array()

   796 		);

   797 

   798 		$r = wp_parse_args( $args, $defaults );

   799 

   800 		$arrURL = parse_url($url);

   801 

   802 		if ( false === $arrURL )

   803 			return new WP_Error('http_request_failed', sprintf(__('Malformed URL: %s'), $url));

   804 

   805 		if ( 'http' != $arrURL['scheme'] && 'https' != $arrURL['scheme'] )

   806 			$url = str_replace($arrURL['scheme'], 'http', $url);

   807 

   808 		if ( !defined('WP_DEBUG') || ( defined('WP_DEBUG') && false === WP_DEBUG ) )

   809 			$handle = @fopen($url, 'r');

   810 		else

   811 			$handle = fopen($url, 'r');

   812 

   813 		if (! $handle)

   814 			return new WP_Error('http_request_failed', sprintf(__('Could not open handle for fopen() to %s'), $url));

   815 

   816 		stream_set_timeout($handle, $r['timeout'] );

   817 

   818 		if ( ! $r['blocking'] ) {

   819 			fclose($handle);

   820 			return array( 'headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array() );

   821 		}

   822 

   823 		$strResponse = '';

   824 		while ( ! feof($handle) )

   825 			$strResponse .= fread($handle, 4096);

   826 

   827 		if ( function_exists('stream_get_meta_data') ) {

   828 			$meta = stream_get_meta_data($handle);

   829 			$theHeaders = $meta['wrapper_data'];

   830 			if ( isset( $meta['wrapper_data']['headers'] ) )

   831 				$theHeaders = $meta['wrapper_data']['headers'];

   832 		} else {

   833 			//$http_response_header is a PHP reserved variable which is set in the current-scope when using the HTTP Wrapper

   834 			//see http://php.oregonstate.edu/manual/en/reserved.variables.httpresponseheader.php

   835 			$theHeaders = $http_response_header;

   836 		}

   837 

   838 		fclose($handle);

   839 

   840 		$processedHeaders = WP_Http::processHeaders($theHeaders);

   841 

   842 		if ( ! empty( $strResponse ) && isset( $processedHeaders['headers']['transfer-encoding'] ) && 'chunked' == $processedHeaders['headers']['transfer-encoding'] )

   843 			$strResponse = WP_Http::chunkTransferDecode($strResponse);

   844 

   845 		if ( true === $r['decompress'] && true === WP_Http_Encoding::should_decode($processedHeaders['headers']) )

   846 			$strResponse = WP_Http_Encoding::decompress( $strResponse );

   847 

   848 		return array('headers' => $processedHeaders['headers'], 'body' => $strResponse, 'response' => $processedHeaders['response'], 'cookies' => $processedHeaders['cookies']);

   849 	}

   850 

   851 	/**

   852 	 * Whether this class can be used for retrieving an URL.

   853 	 *

   854 	 * @since 2.7.0

   855 	 * @static

   856 	 * @return boolean False means this class can not be used, true means it can.

   857 	 */

   858 	function test($args = array()) {

   859 		if ( ! function_exists('fopen') || (function_exists('ini_get') && true != ini_get('allow_url_fopen')) )

   860 			return false;

   861 

   862 		$use = true;

   863 

   864 		//PHP does not verify SSL certs, We can only make a request via this transports if SSL Verification is turned off.

   865 		$is_ssl = isset($args['ssl']) && $args['ssl'];

   866 		if ( $is_ssl ) {

   867 			$is_local = isset($args['local']) && $args['local'];

   868 			$ssl_verify = isset($args['sslverify']) && $args['sslverify'];

   869 			if ( $is_local && true != apply_filters('https_local_ssl_verify', true) )

   870 				$use = true;

   871 			elseif ( !$is_local && true != apply_filters('https_ssl_verify', true) )

   872 				$use = true;

   873 			elseif ( !$ssl_verify )

   874 				$use = true;

   875 			else

   876 				$use = false;

   877 		}

   878 

   879 		return apply_filters('use_fopen_transport', $use, $args);

   880 	}

   881 }

   882 

   883 /**

   884  * HTTP request method uses Streams to retrieve the url.

   885  *

   886  * Requires PHP 5.0+ and uses fopen with stream context. Requires that 'allow_url_fopen' PHP setting

   887  * to be enabled.

   888  *

   889  * Second preferred method for getting the URL, for PHP 5.

   890  *

   891  * @package WordPress

   892  * @subpackage HTTP

   893  * @since 2.7.0

   894  */

   895 class WP_Http_Streams {

   896 	/**

   897 	 * Send a HTTP request to a URI using streams with fopen().

   898 	 *

   899 	 * @access public

   900 	 * @since 2.7.0

   901 	 *

   902 	 * @param string $url

   903 	 * @param str|array $args Optional. Override the defaults.

   904 	 * @return array 'headers', 'body', 'cookies' and 'response' keys.

   905 	 */

   906 	function request($url, $args = array()) {

   907 		$defaults = array(

   908 			'method' => 'GET', 'timeout' => 5,

   909 			'redirection' => 5, 'httpversion' => '1.0',

   910 			'blocking' => true,

   911 			'headers' => array(), 'body' => null, 'cookies' => array()

   912 		);

   913 

   914 		$r = wp_parse_args( $args, $defaults );

   915 

   916 		if ( isset($r['headers']['User-Agent']) ) {

   917 			$r['user-agent'] = $r['headers']['User-Agent'];

   918 			unset($r['headers']['User-Agent']);

   919 		} else if( isset($r['headers']['user-agent']) ) {

   920 			$r['user-agent'] = $r['headers']['user-agent'];

   921 			unset($r['headers']['user-agent']);

   922 		}

   923 

   924 		// Construct Cookie: header if any cookies are set

   925 		WP_Http::buildCookieHeader( $r );

   926 

   927 		$arrURL = parse_url($url);

   928 

   929 		if ( false === $arrURL )

   930 			return new WP_Error('http_request_failed', sprintf(__('Malformed URL: %s'), $url));

   931 

   932 		if ( 'http' != $arrURL['scheme'] && 'https' != $arrURL['scheme'] )

   933 			$url = preg_replace('|^' . preg_quote($arrURL['scheme'], '|') . '|', 'http', $url);

   934 

   935 		// Convert Header array to string.

   936 		$strHeaders = '';

   937 		if ( is_array( $r['headers'] ) )

   938 			foreach ( $r['headers'] as $name => $value )

   939 				$strHeaders .= "{$name}: $value\r\n";

   940 		else if ( is_string( $r['headers'] ) )

   941 			$strHeaders = $r['headers'];

   942 

   943 		$is_local = isset($args['local']) && $args['local'];

   944 		$ssl_verify = isset($args['sslverify']) && $args['sslverify'];

   945 		if ( $is_local )

   946 			$ssl_verify = apply_filters('https_local_ssl_verify', $ssl_verify);

   947 		elseif ( ! $is_local )

   948 			$ssl_verify = apply_filters('https_ssl_verify', $ssl_verify);

   949 

   950 		$arrContext = array('http' =>

   951 			array(

   952 				'method' => strtoupper($r['method']),

   953 				'user_agent' => $r['user-agent'],

   954 				'max_redirects' => $r['redirection'],

   955 				'protocol_version' => (float) $r['httpversion'],

   956 				'header' => $strHeaders,

   957 				'timeout' => $r['timeout'],

   958 				'ssl' => array(

   959 						'verify_peer' => $ssl_verify,

   960 						'verify_host' => $ssl_verify

   961 				)

   962 			)

   963 		);

   964 

   965 		$proxy = new WP_HTTP_Proxy();

   966 

   967 		if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) {

   968 			$arrContext['http']['proxy'] = 'tcp://' . $proxy->host() . ':' . $proxy->port();

   969 			$arrContext['http']['request_fulluri'] = true;

   970 

   971 			// We only support Basic authentication so this will only work if that is what your proxy supports.

   972 			if ( $proxy->use_authentication() )

   973 				$arrContext['http']['header'] .= $proxy->authentication_header() . "\r\n";

   974 		}

   975 

   976 		if ( ! is_null($r['body']) && ! empty($r['body'] ) )

   977 			$arrContext['http']['content'] = $r['body'];

   978 

   979 		$context = stream_context_create($arrContext);

   980 

   981 		if ( ! defined('WP_DEBUG') || ( defined('WP_DEBUG') && false === WP_DEBUG ) )

   982 			$handle = @fopen($url, 'r', false, $context);

   983 		else

   984 			$handle = fopen($url, 'r', false, $context);

   985 

   986 		if ( ! $handle)

   987 			return new WP_Error('http_request_failed', sprintf(__('Could not open handle for fopen() to %s'), $url));

   988 

   989 		// WordPress supports PHP 4.3, which has this function. Removed sanity checking for

   990 		// performance reasons.

   991 		stream_set_timeout($handle, $r['timeout'] );

   992 

   993 		if ( ! $r['blocking'] ) {

   994 			stream_set_blocking($handle, 0);

   995 			fclose($handle);

   996 			return array( 'headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array() );

   997 		}

   998 

   999 		$strResponse = stream_get_contents($handle);

  1000 		$meta = stream_get_meta_data($handle);

  1001 

  1002 		fclose($handle);

  1003 

  1004 		$processedHeaders = array();

  1005 		if ( isset( $meta['wrapper_data']['headers'] ) )

  1006 			$processedHeaders = WP_Http::processHeaders($meta['wrapper_data']['headers']);

  1007 		else

  1008 			$processedHeaders = WP_Http::processHeaders($meta['wrapper_data']);

  1009 

  1010 		if ( ! empty( $strResponse ) && isset( $processedHeaders['headers']['transfer-encoding'] ) && 'chunked' == $processedHeaders['headers']['transfer-encoding'] )

  1011 			$strResponse = WP_Http::chunkTransferDecode($strResponse);

  1012 

  1013 		if ( true === $r['decompress'] && true === WP_Http_Encoding::should_decode($processedHeaders['headers']) )

  1014 			$strResponse = WP_Http_Encoding::decompress( $strResponse );

  1015 

  1016 		return array('headers' => $processedHeaders['headers'], 'body' => $strResponse, 'response' => $processedHeaders['response'], 'cookies' => $processedHeaders['cookies']);

  1017 	}

  1018 

  1019 	/**

  1020 	 * Whether this class can be used for retrieving an URL.

  1021 	 *

  1022 	 * @static

  1023 	 * @access public

  1024 	 * @since 2.7.0

  1025 	 *

  1026 	 * @return boolean False means this class can not be used, true means it can.

  1027 	 */

  1028 	function test($args = array()) {

  1029 		if ( ! function_exists('fopen') || (function_exists('ini_get') && true != ini_get('allow_url_fopen')) )

  1030 			return false;

  1031 

  1032 		if ( version_compare(PHP_VERSION, '5.0', '<') )

  1033 			return false;

  1034 

  1035 		//HTTPS via Proxy was added in 5.1.0

  1036 		$is_ssl = isset($args['ssl']) && $args['ssl'];

  1037 		if ( $is_ssl && version_compare(PHP_VERSION, '5.1.0', '<') ) {

  1038 			$proxy = new WP_HTTP_Proxy();

  1039 			/**

  1040 			 * No URL check, as its not currently passed to the ::test() function

  1041 			 * In the case where a Proxy is in use, Just bypass this transport for HTTPS.

  1042 			 */

  1043 			if ( $proxy->is_enabled() )

  1044 				return false;

  1045 		}

  1046 

  1047 		return apply_filters('use_streams_transport', true, $args);

  1048 	}

  1049 }

  1050 

  1051 /**

  1052  * HTTP request method uses HTTP extension to retrieve the url.

  1053  *

  1054  * Requires the HTTP extension to be installed. This would be the preferred transport since it can

  1055  * handle a lot of the problems that forces the others to use the HTTP version 1.0. Even if PHP 5.2+

  1056  * is being used, it doesn't mean that the HTTP extension will be enabled.

  1057  *

  1058  * @package WordPress

  1059  * @subpackage HTTP

  1060  * @since 2.7.0

  1061  */

  1062 class WP_Http_ExtHTTP {

  1063 	/**

  1064 	 * Send a HTTP request to a URI using HTTP extension.

  1065 	 *

  1066 	 * Does not support non-blocking.

  1067 	 *

  1068 	 * @access public

  1069 	 * @since 2.7

  1070 	 *

  1071 	 * @param string $url

  1072 	 * @param str|array $args Optional. Override the defaults.

  1073 	 * @return array 'headers', 'body', 'cookies' and 'response' keys.

  1074 	 */

  1075 	function request($url, $args = array()) {

  1076 		$defaults = array(

  1077 			'method' => 'GET', 'timeout' => 5,

  1078 			'redirection' => 5, 'httpversion' => '1.0',

  1079 			'blocking' => true,

  1080 			'headers' => array(), 'body' => null, 'cookies' => array()

  1081 		);

  1082 

  1083 		$r = wp_parse_args( $args, $defaults );

  1084 

  1085 		if ( isset($r['headers']['User-Agent']) ) {

  1086 			$r['user-agent'] = $r['headers']['User-Agent'];

  1087 			unset($r['headers']['User-Agent']);

  1088 		} else if( isset($r['headers']['user-agent']) ) {

  1089 			$r['user-agent'] = $r['headers']['user-agent'];

  1090 			unset($r['headers']['user-agent']);

  1091 		}

  1092 

  1093 		// Construct Cookie: header if any cookies are set

  1094 		WP_Http::buildCookieHeader( $r );

  1095 

  1096 		switch ( $r['method'] ) {

  1097 			case 'POST':

  1098 				$r['method'] = HTTP_METH_POST;

  1099 				break;

  1100 			case 'HEAD':

  1101 				$r['method'] = HTTP_METH_HEAD;

  1102 				break;

  1103 			case 'GET':

  1104 			default:

  1105 				$r['method'] = HTTP_METH_GET;

  1106 		}

  1107 

  1108 		$arrURL = parse_url($url);

  1109 

  1110 		if ( 'http' != $arrURL['scheme'] || 'https' != $arrURL['scheme'] )

  1111 			$url = preg_replace('|^' . preg_quote($arrURL['scheme'], '|') . '|', 'http', $url);

  1112 

  1113 		$is_local = isset($args['local']) && $args['local'];

  1114 		$ssl_verify = isset($args['sslverify']) && $args['sslverify'];

  1115 		if ( $is_local )

  1116 			$ssl_verify = apply_filters('https_local_ssl_verify', $ssl_verify);

  1117 		elseif ( ! $is_local )

  1118 			$ssl_verify = apply_filters('https_ssl_verify', $ssl_verify);

  1119 

  1120 		$options = array(

  1121 			'timeout' => $r['timeout'],

  1122 			'connecttimeout' => $r['timeout'],

  1123 			'redirect' => $r['redirection'],

  1124 			'useragent' => $r['user-agent'],

  1125 			'headers' => $r['headers'],

  1126 			'ssl' => array(

  1127 				'verifypeer' => $ssl_verify,

  1128 				'verifyhost' => $ssl_verify

  1129 			)

  1130 		);

  1131 

  1132 		// The HTTP extensions offers really easy proxy support.

  1133 		$proxy = new WP_HTTP_Proxy();

  1134 

  1135 		if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) {