X-Git-Url: https://scripts.mit.edu/gitweb/autoinstalls/wordpress.git/blobdiff_plain/4713a14935b83517997f3c88f808eb41da55033d..e0feb3b2e5b436a06bbb04fbc838d1cd6ec95399:/wp-includes/http.php?ds=sidebyside

diff --git a/wp-includes/http.php b/wp-includes/http.php
index 57746ff8..4768c7fd 100644
--- a/wp-includes/http.php
+++ b/wp-includes/http.php
@@ -4,7 +4,7 @@
  *
  * Will eventually replace and standardize the WordPress HTTP requests made.
  *
- * @link http://trac.wordpress.org/ticket/4779 HTTP API Proposal
+ * @link https://core.trac.wordpress.org/ticket/4779 HTTP API Proposal
  *
  * @package WordPress
  * @subpackage HTTP
@@ -17,14 +17,16 @@
  * @since 2.7.0
  * @access private
  *
+ * @staticvar WP_Http $http
+ *
  * @return WP_Http HTTP Transport object.
  */
 function _wp_http_get_object() {
-	static $http;
+	static $http = null;
 
-	if ( is_null($http) )
+	if ( is_null( $http ) ) {
 		$http = new WP_Http();
-
+	}
 	return $http;
 }
 
@@ -34,13 +36,13 @@ function _wp_http_get_object() {
  * This function is ideal when the HTTP request is being made to an arbitrary
  * URL. The URL is validated to avoid redirection and request forgery attacks.
  *
- * @see wp_remote_request() For more information on the response array format
- * 	and default arguments.
- *
  * @since 3.6.0
  *
- * @param string $url Site URL to retrieve.
- * @param array $args Optional. Override the defaults.
+ * @see wp_remote_request() For more information on the response array format.
+ * @see WP_Http::request() For default arguments information.
+ *
+ * @param string $url  Site URL to retrieve.
+ * @param array  $args Optional. Request arguments. Default empty array.
  * @return WP_Error|array The response or WP_Error on failure.
  */
 function wp_safe_remote_request( $url, $args = array() ) {
@@ -55,13 +57,13 @@ function wp_safe_remote_request( $url, $args = array() ) {
  * This function is ideal when the HTTP request is being made to an arbitrary
  * URL. The URL is validated to avoid redirection and request forgery attacks.
  *
- * @see wp_remote_request() For more information on the response array format
- * 	and default arguments.
- *
  * @since 3.6.0
  *
- * @param string $url Site URL to retrieve.
- * @param array $args Optional. Override the defaults.
+ * @see wp_remote_request() For more information on the response array format.
+ * @see WP_Http::request() For default arguments information.
+ *
+ * @param string $url  Site URL to retrieve.
+ * @param array  $args Optional. Request arguments. Default empty array.
  * @return WP_Error|array The response or WP_Error on failure.
  */
 function wp_safe_remote_get( $url, $args = array() ) {
@@ -76,13 +78,13 @@ function wp_safe_remote_get( $url, $args = array() ) {
  * This function is ideal when the HTTP request is being made to an arbitrary
  * URL. The URL is validated to avoid redirection and request forgery attacks.
  *
- * @see wp_remote_request() For more information on the response array format
- * 	and default arguments.
- *
  * @since 3.6.0
  *
- * @param string $url Site URL to retrieve.
- * @param array $args Optional. Override the defaults.
+ * @see wp_remote_request() For more information on the response array format.
+ * @see WP_Http::request() For default arguments information.
+ *
+ * @param string $url  Site URL to retrieve.
+ * @param array  $args Optional. Request arguments. Default empty array.
  * @return WP_Error|array The response or WP_Error on failure.
  */
 function wp_safe_remote_post( $url, $args = array() ) {
@@ -97,13 +99,13 @@ function wp_safe_remote_post( $url, $args = array() ) {
  * This function is ideal when the HTTP request is being made to an arbitrary
  * URL. The URL is validated to avoid redirection and request forgery attacks.
  *
- * @see wp_remote_request() For more information on the response array format
- * 	and default arguments.
- *
  * @since 3.6.0
  *
+ * @see wp_remote_request() For more information on the response array format.
+ * @see WP_Http::request() For default arguments information.
+ *
  * @param string $url Site URL to retrieve.
- * @param array $args Optional. Override the defaults.
+ * @param array $args Optional. Request arguments. Default empty array.
  * @return WP_Error|array The response or WP_Error on failure.
  */
 function wp_safe_remote_head( $url, $args = array() ) {
@@ -115,100 +117,93 @@ function wp_safe_remote_head( $url, $args = array() ) {
 /**
  * Retrieve the raw response from the HTTP request.
  *
- * The array structure is a little complex.
+ * The array structure is a little complex:
  *
- * <code>
- * $res = array( 'headers' => array(), 'response' => array('code' => int, 'message' => string) );
- * </code>
+ *     $res = array(
+ *         'headers'  => array(),
+ *         'response' => array(
+ *             'code'    => int,
+ *             'message' => string
+ *         )
+ *     );
  *
  * 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>
+ *     $user_agent = $res['headers']['user-agent'];
  *
  * 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.
  *
- * List of default arguments:
- * 'method'      => 'GET'
+ * Request method defaults for helper functions:
  *  - Default 'GET'  for wp_remote_get()
  *  - Default 'POST' for wp_remote_post()
  *  - Default 'HEAD' for wp_remote_head()
- * 'timeout'     => 5
- * 'redirection' => 5
- * 'httpversion' => '1.0'
- * 'user-agent'  => 'WordPress/' . $wp_version . '; ' . get_bloginfo( 'url' )
- * 'blocking'    => true
- * 'headers'     => array()
- * 'cookies'     => array()
- * 'body'        => null
- * 'compress'    => false,
- * 'decompress'  => true,
- * 'sslverify'   => true,
- * 'stream'      => false,
- * 'filename'    => null
  *
  * @since 2.7.0
  *
- * @param string $url Site URL to retrieve.
- * @param array $args Optional. Override the defaults.
+ * @see WP_Http::request() For additional information on default arguments.
+ *
+ * @param string $url  Site URL to retrieve.
+ * @param array  $args Optional. Request arguments. Default empty array.
  * @return WP_Error|array The response or WP_Error on failure.
  */
 function wp_remote_request($url, $args = array()) {
-	$objFetchSite = _wp_http_get_object();
-	return $objFetchSite->request($url, $args);
+	$http = _wp_http_get_object();
+	return $http->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 and default arguments.
- *
  * @since 2.7.0
  *
- * @param string $url Site URL to retrieve.
- * @param array $args Optional. Override the defaults.
+ * @see wp_remote_request() For more information on the response array format.
+ * @see WP_Http::request() For default arguments information.
+ *
+ * @param string $url  Site URL to retrieve.
+ * @param array  $args Optional. Request arguments. Default empty array.
  * @return WP_Error|array The response or WP_Error on failure.
  */
 function wp_remote_get($url, $args = array()) {
-	$objFetchSite = _wp_http_get_object();
-	return $objFetchSite->get($url, $args);
+	$http = _wp_http_get_object();
+	return $http->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 and default arguments.
- *
  * @since 2.7.0
  *
- * @param string $url Site URL to retrieve.
- * @param array $args Optional. Override the defaults.
+ * @see wp_remote_request() For more information on the response array format.
+ * @see WP_Http::request() For default arguments information.
+ *
+ * @param string $url  Site URL to retrieve.
+ * @param array  $args Optional. Request arguments. Default empty array.
  * @return WP_Error|array The response or WP_Error on failure.
  */
 function wp_remote_post($url, $args = array()) {
-	$objFetchSite = _wp_http_get_object();
-	return $objFetchSite->post($url, $args);
+	$http = _wp_http_get_object();
+	return $http->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 and default arguments.
- *
  * @since 2.7.0
  *
- * @param string $url Site URL to retrieve.
- * @param array $args Optional. Override the defaults.
+ * @see wp_remote_request() For more information on the response array format.
+ * @see WP_Http::request() For default arguments information.
+ *
+ * @param string $url  Site URL to retrieve.
+ * @param array  $args Optional. Request arguments. Default empty array.
  * @return WP_Error|array The response or WP_Error on failure.
  */
 function wp_remote_head($url, $args = array()) {
-	$objFetchSite = _wp_http_get_object();
-	return $objFetchSite->head($url, $args);
+	$http = _wp_http_get_object();
+	return $http->head( $url, $args );
 }
 
 /**
@@ -219,7 +214,7 @@ function wp_remote_head($url, $args = array()) {
  * @param array $response HTTP response.
  * @return array The headers of the response. Empty array if incorrect parameter given.
  */
-function wp_remote_retrieve_headers(&$response) {
+function wp_remote_retrieve_headers( $response ) {
 	if ( is_wp_error($response) || ! isset($response['headers']) || ! is_array($response['headers']))
 		return array();
 
@@ -231,11 +226,11 @@ function wp_remote_retrieve_headers(&$response) {
  *
  * @since 2.7.0
  *
- * @param array $response
+ * @param array  $response
  * @param string $header Header name to retrieve value from.
  * @return string The header value. Empty string on if incorrect parameter given, or if the header doesn't exist.
  */
-function wp_remote_retrieve_header(&$response, $header) {
+function wp_remote_retrieve_header( $response, $header ) {
 	if ( is_wp_error($response) || ! isset($response['headers']) || ! is_array($response['headers']))
 		return '';
 
@@ -253,9 +248,9 @@ function wp_remote_retrieve_header(&$response, $header) {
  * @since 2.7.0
  *
  * @param array $response HTTP response.
- * @return string the response code. Empty string on incorrect parameter given.
+ * @return int|string The response code as an integer. Empty string on incorrect parameter given.
  */
-function wp_remote_retrieve_response_code(&$response) {
+function wp_remote_retrieve_response_code( $response ) {
 	if ( is_wp_error($response) || ! isset($response['response']) || ! is_array($response['response']))
 		return '';
 
@@ -272,7 +267,7 @@ function wp_remote_retrieve_response_code(&$response) {
  * @param array $response HTTP response.
  * @return string The response message. Empty string on incorrect parameter given.
  */
-function wp_remote_retrieve_response_message(&$response) {
+function wp_remote_retrieve_response_message( $response ) {
 	if ( is_wp_error($response) || ! isset($response['response']) || ! is_array($response['response']))
 		return '';
 
@@ -287,7 +282,7 @@ function wp_remote_retrieve_response_message(&$response) {
  * @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) {
+function wp_remote_retrieve_body( $response ) {
 	if ( is_wp_error($response) || ! isset($response['body']) )
 		return '';
 
@@ -300,12 +295,13 @@ function wp_remote_retrieve_body(&$response) {
  * @since 3.2.0
  *
  * @param array  $capabilities Array of capabilities to test or a wp_remote_request() $args array.
- * @param string $url Optional. If given, will check if the URL requires SSL and adds that requirement to the capabilities array.
+ * @param string $url          Optional. If given, will check if the URL requires SSL and adds
+ *                             that requirement to the capabilities array.
  *
  * @return bool
  */
 function wp_http_supports( $capabilities = array(), $url = null ) {
-	$objFetchSite = _wp_http_get_object();
+	$http = _wp_http_get_object();
 
 	$capabilities = wp_parse_args( $capabilities );
 
@@ -323,7 +319,7 @@ function wp_http_supports( $capabilities = array(), $url = null ) {
 		}
 	}
 
-	return (bool) $objFetchSite->_get_first_available_transport( $capabilities );
+	return (bool) $http->_get_first_available_transport( $capabilities );
 }
 
 /**
@@ -388,8 +384,8 @@ function get_allowed_http_origins() {
  *
  * @since 3.4.0
  *
- * @param string Origin URL. If not provided, the value of get_http_origin() is used.
- * @return bool True if the origin is allowed. False otherwise.
+ * @param null|string $origin Origin URL. If not provided, the value of get_http_origin() is used.
+ * @return string True if the origin is allowed. False otherwise.
  */
 function is_allowed_http_origin( $origin = null ) {
 	$origin_arg = $origin;
@@ -405,8 +401,8 @@ function is_allowed_http_origin( $origin = null ) {
 	 *
 	 * @since 3.4.0
 	 *
-	 * @param string $origin Result of check for allowed origin.
-	 * @param string $origin_arg original origin string passed into is_allowed_http_origin function.
+	 * @param string $origin     Result of check for allowed origin.
+	 * @param string $origin_arg Original origin string passed into is_allowed_http_origin function.
 	 */
 	return apply_filters( 'allowed_http_origin', $origin, $origin_arg );
 }
@@ -421,8 +417,8 @@ function is_allowed_http_origin( $origin = null ) {
  *
  * @since 3.4.0
  *
- * @return bool|string Returns the origin URL if headers are sent. Returns false
- * if headers are not sent.
+ * @return string|false Returns the origin URL if headers are sent. Returns false
+ *                      if headers are not sent.
  */
 function send_origin_headers() {
 	$origin = get_http_origin();
@@ -448,11 +444,13 @@ function send_origin_headers() {
  *
  * @since 3.5.2
  *
- * @return mixed URL or false on failure.
+ * @param string $url
+ * @return false|string URL or false on failure.
  */
 function wp_http_validate_url( $url ) {
+	$original_url = $url;
 	$url = wp_kses_bad_protocol( $url, array( 'http', 'https' ) );
-	if ( ! $url )
+	if ( ! $url || strtolower( $url ) !== strtolower( $original_url ) )
 		return false;
 
 	$parsed_url = @parse_url( $url );
@@ -462,7 +460,7 @@ function wp_http_validate_url( $url ) {
 	if ( isset( $parsed_url['user'] ) || isset( $parsed_url['pass'] ) )
 		return false;
 
-	if ( false !== strpos( $parsed_url['host'], ':' ) )
+	if ( false !== strpbrk( $parsed_url['host'], ':#?[]' ) )
 		return false;
 
 	$parsed_home = @parse_url( get_option( 'home' ) );
@@ -480,8 +478,7 @@ function wp_http_validate_url( $url ) {
 		}
 		if ( $ip ) {
 			$parts = array_map( 'intval', explode( '.', $ip ) );
-			if ( '127.0.0.1' === $ip
-				|| ( 10 === $parts[0] )
+			if ( 127 === $parts[0] || 10 === $parts[0]
 				|| ( 172 === $parts[0] && 16 <= $parts[1] && 31 >= $parts[1] )
 				|| ( 192 === $parts[0] && 168 === $parts[1] )
 			) {
@@ -493,9 +490,9 @@ function wp_http_validate_url( $url ) {
 				 *
 				 * @since 3.6.0
 				 *
-				 * @param bool false Whether HTTP request is external or not.
+				 * @param bool   false Whether HTTP request is external or not.
 				 * @param string $host IP of the requested host.
-				 * @param string $url URL of the requested host.
+				 * @param string $url  URL of the requested host.
 				 */
 				if ( ! apply_filters( 'http_request_host_is_external', false, $host, $url ) )
 					return false;
@@ -523,7 +520,7 @@ function wp_http_validate_url( $url ) {
  *
  * @since 3.6.0
  *
- * @param bool $is_external
+ * @param bool   $is_external
  * @param string $host
  * @return bool
  */
@@ -540,7 +537,10 @@ function allowed_http_request_hosts( $is_external, $host ) {
  *
  * @since 3.6.0
  *
- * @param bool $is_external
+ * @global wpdb $wpdb
+ * @staticvar array $queried
+ *
+ * @param bool   $is_external
  * @param string $host
  * @return bool
  */