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HTTP: move classes into their own files, `http.php` loads the new files, so this is 100% BC if someone is loading `http.php` directly. New files created using `svn cp`. 

`class-http.php` requires functions from `http.php`, so loading it by itself wouldn't have worked.

Creates: 
`class-wp-http-cookie.php` 
`class-wp-http-curl.php` 
`class-wp-http-encoding.php` 
`class-wp-http-proxy.php` 
`class-wp-http-streams.php` 
`http-functions.php` 

`WP_Http` remains in `class-http.php`.

`http.php` contains only top-level code. Class files only contain classes. Functions file only contains functions.

See #33413.

Built from https://develop.svn.wordpress.org/trunk@33748


git-svn-id: http://core.svn.wordpress.org/trunk@33716 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Scott Taylor 2015-08-26 03:55:21 +00:00
parent 48e83418ed
commit 7c8c216bec
10 changed files with 1996 additions and 1988 deletions
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1440
wp-includes/class-http.php
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213
wp-includes/class-wp-http-cookie.php Normal file
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<?php
/**
* 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
*/
class WP_Http_Cookie {
/**
* Cookie name.
*
* @since 2.8.0
* @var string
*/
public $name;
/**
* Cookie value.
*
* @since 2.8.0
* @var string
*/
public $value;
/**
* When the cookie expires.
*
* @since 2.8.0
* @var string
*/
public $expires;
/**
* Cookie URL path.
*
* @since 2.8.0
* @var string
*/
public $path;
/**
* Cookie Domain.
*
* @since 2.8.0
* @var string
*/
public $domain;
/**
* 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.
*
* @since 2.8.0
* @access public
*
* @param string|array $data {
* Raw cookie data as header string or data array.
*
* @type string $name Cookie name.
* @type mixed $value Value. Should NOT already be urlencoded.
* @type string|int $expires Optional. Unix timestamp or formatted date. Default null.
* @type string $path Optional. Path. Default '/'.
* @type string $domain Optional. Domain. Default host of parsed $requested_url.
* @type int $port Optional. Port. Default null.
* }
* @param string $requested_url The URL which the cookie was set on, used for default $domain
* and $port values.
*/
public function __construct( $data, $requested_url = '' ) {
if ( $requested_url )
$arrURL = @parse_url( $requested_url );
if ( isset( $arrURL['host'] ) )
$this->domain = $arrURL['host'];
$this->path = isset( $arrURL['path'] ) ? $arrURL['path'] : '/';
if ( '/' != substr( $this->path, -1 ) )
$this->path = dirname( $this->path ) . '/';
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 );
// Removes name=value from items.
array_shift( $pairs );
// Set everything else as a property.
foreach ( $pairs as $pair ) {
$pair = rtrim($pair);
// Handle the cookie ending in ; which results in a empty final pair.
if ( empty($pair) )
continue;
list( $key, $val ) = strpos( $pair, '=' ) ? explode( '=', $pair ) : array( $pair, '' );
$key = strtolower( trim( $key ) );
if ( 'expires' == $key )
$val = strtotime( $val );
$this->$key = $val;
}
} else {
if ( !isset( $data['name'] ) )
return;
// Set properties based directly on parameters.
foreach ( array( 'name', 'value', 'path', 'domain', 'port' ) as $field ) {
if ( isset( $data[ $field ] ) )
$this->$field = $data[ $field ];
}
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 bool true if allowed, false otherwise.
*/
public function test( $url ) {
if ( is_null( $this->name ) )
return false;
// Expires - if expired then nothing else matters.
if ( isset( $this->expires ) && 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'] : ( 'https' == $url['scheme'] ? 443 : 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 : null;
$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 ( !empty( $port ) && !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.
*/
public function getHeaderValue() {
if ( ! isset( $this->name ) || ! isset( $this->value ) )
return '';
/**
* Filter the header-encoded cookie value.
*
* @since 3.4.0
*
* @param string $value The cookie value.
* @param string $name The cookie name.
*/
return $this->name . '=' . apply_filters( 'wp_http_cookie_value', $this->value, $this->name );
}
/**
* Retrieve cookie header for usage in the rest of the WordPress HTTP API.
*
* @access public
* @since 2.8.0
*
* @return string
*/
public function getFullHeader() {
return 'Cookie: ' . $this->getHeaderValue();
}
}

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wp-includes/class-wp-http-curl.php Normal file
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<?php
/**
* HTTP request method uses Curl extension to retrieve the url.
*
* Requires the Curl extension to be installed.
*
* @package WordPress
* @subpackage HTTP
* @since 2.7.0
*/
class WP_Http_Curl {
/**
* Temporary header storage for during requests.
*
* @since 3.2.0
* @access private
* @var string
*/
private $headers = '';
/**
* Temporary body storage for during requests.
*
* @since 3.6.0
* @access private
* @var string
*/
private $body = '';
/**
* The maximum amount of data to receive from the remote server.
*
* @since 3.6.0
* @access private
* @var int
*/
private $max_body_length = false;
/**
* The file resource used for streaming to file.
*
* @since 3.6.0
* @access private
* @var resource
*/
private $stream_handle = false;
/**
* The total bytes written in the current request.
*
* @since 4.1.0
* @access private
* @var int
*/
private $bytes_written_total = 0;
/**
* Send a HTTP request to a URI using cURL extension.
*
* @access public
* @since 2.7.0
*
* @param string $url The request URL.
* @param string|array $args Optional. Override the defaults.
* @return array|WP_Error Array containing 'headers', 'body', 'response', 'cookies', 'filename'. A WP_Error instance upon error
*/
public function request($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'] );
} elseif ( 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 ) ) {
curl_setopt( $handle, CURLOPT_PROXYTYPE, CURLPROXY_HTTP );
curl_setopt( $handle, CURLOPT_PROXY, $proxy->host() );
curl_setopt( $handle, CURLOPT_PROXYPORT, $proxy->port() );
if ( $proxy->use_authentication() ) {
curl_setopt( $handle, CURLOPT_PROXYAUTH, CURLAUTH_ANY );
curl_setopt( $handle, CURLOPT_PROXYUSERPWD, $proxy->authentication() );
}
}
$is_local = isset($r['local']) && $r['local'];
$ssl_verify = isset($r['sslverify']) && $r['sslverify'];
if ( $is_local ) {
/** This filter is documented in wp-includes/class-http.php */
$ssl_verify = apply_filters( 'https_local_ssl_verify', $ssl_verify );
} elseif ( ! $is_local ) {
/** This filter is documented in wp-includes/class-http.php */
$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 unlimited 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 === true ) ? 2 : false );
curl_setopt( $handle, CURLOPT_SSL_VERIFYPEER, $ssl_verify );
curl_setopt( $handle, CURLOPT_CAINFO, $r['sslcertificates'] );
curl_setopt( $handle, CURLOPT_USERAGENT, $r['user-agent'] );
/*
* The option doesn't work with safe mode or when open_basedir is set, and there's
* a bug #17490 with redirected POST requests, so handle redirections outside Curl.
*/
curl_setopt( $handle, CURLOPT_FOLLOWLOCATION, false );
if ( defined( 'CURLOPT_PROTOCOLS' ) ) // PHP 5.2.10 / cURL 7.19.4
curl_setopt( $handle, CURLOPT_PROTOCOLS, CURLPROTO_HTTP | CURLPROTO_HTTPS );
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;
default:
curl_setopt( $handle, CURLOPT_CUSTOMREQUEST, $r['method'] );
if ( ! is_null( $r['body'] ) )
curl_setopt( $handle, CURLOPT_POSTFIELDS, $r['body'] );
break;
}
if ( true === $r['blocking'] ) {
curl_setopt( $handle, CURLOPT_HEADERFUNCTION, array( $this, 'stream_headers' ) );
curl_setopt( $handle, CURLOPT_WRITEFUNCTION, array( $this, 'stream_body' ) );
}
curl_setopt( $handle, CURLOPT_HEADER, false );
if ( isset( $r['limit_response_size'] ) )
$this->max_body_length = intval( $r['limit_response_size'] );
else
$this->max_body_length = false;
// If streaming to a file open a file handle, and setup our curl streaming handler.
if ( $r['stream'] ) {
if ( ! WP_DEBUG )
$this->stream_handle = @fopen( $r['filename'], 'w+' );
else
$this->stream_handle = fopen( $r['filename'], 'w+' );
if ( ! $this->stream_handle )
return new WP_Error( 'http_request_failed', sprintf( __( 'Could not open handle for fopen() to %s' ), $r['filename'] ) );
} else {
$this->stream_handle = false;
}
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( $handle, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1 );
/**
* Fires before the cURL request is executed.
*
* Cookies are not currently handled by the HTTP API. This action allows
* plugins to handle cookies themselves.
*
* @since 2.8.0
*
* @param resource &$handle The cURL handle returned by curl_init().
* @param array $r The HTTP request arguments.
* @param string $url The request URL.
*/
do_action_ref_array( 'http_api_curl', array( &$handle, $r, $url ) );
// We don't need to return the body, so don't. Just execute request and return.
if ( ! $r['blocking'] ) {
curl_exec( $handle );
if ( $curl_error = curl_error( $handle ) ) {
curl_close( $handle );
return new WP_Error( 'http_request_failed', $curl_error );
}
if ( in_array( curl_getinfo( $handle, CURLINFO_HTTP_CODE ), array( 301, 302 ) ) ) {
curl_close( $handle );
return new WP_Error( 'http_request_failed', __( 'Too many redirects.' ) );
}
curl_close( $handle );
return array( 'headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array() );
}
curl_exec( $handle );
$theHeaders = WP_Http::processHeaders( $this->headers, $url );
$theBody = $this->body;
$bytes_written_total = $this->bytes_written_total;
$this->headers = '';
$this->body = '';
$this->bytes_written_total = 0;
$curl_error = curl_errno( $handle );
// If an error occurred, or, no response.
if ( $curl_error || ( 0 == strlen( $theBody ) && empty( $theHeaders['headers'] ) ) ) {
if ( CURLE_WRITE_ERROR /* 23 */ == $curl_error ) {
if ( ! $this->max_body_length || $this->max_body_length != $bytes_written_total ) {
if ( $r['stream'] ) {
curl_close( $handle );
fclose( $this->stream_handle );
return new WP_Error( 'http_request_failed', __( 'Failed to write request to temporary file.' ) );
} else {
curl_close( $handle );
return new WP_Error( 'http_request_failed', curl_error( $handle ) );
}
}
} else {
if ( $curl_error = curl_error( $handle ) ) {
curl_close( $handle );
return new WP_Error( 'http_request_failed', $curl_error );
}
}
if ( in_array( curl_getinfo( $handle, CURLINFO_HTTP_CODE ), array( 301, 302 ) ) ) {
curl_close( $handle );
return new WP_Error( 'http_request_failed', __( 'Too many redirects.' ) );
}
}
curl_close( $handle );
if ( $r['stream'] )
fclose( $this->stream_handle );
$response = array(
'headers' => $theHeaders['headers'],
'body' => null,
'response' => $theHeaders['response'],
'cookies' => $theHeaders['cookies'],
'filename' => $r['filename']
);
// Handle redirects.
if ( false !== ( $redirect_response = WP_HTTP::handle_redirects( $url, $r, $response ) ) )
return $redirect_response;
if ( true === $r['decompress'] && true === WP_Http_Encoding::should_decode($theHeaders['headers']) )
$theBody = WP_Http_Encoding::decompress( $theBody );
$response['body'] = $theBody;
return $response;
}
/**
* Grab the headers of the cURL request
*
* Each header is sent individually to this callback, so we append to the $header property for temporary storage
*
* @since 3.2.0
* @access private
* @return int
*/
private function stream_headers( $handle, $headers ) {
$this->headers .= $headers;
return strlen( $headers );
}
/**
* Grab the body of the cURL request
*
* The contents of the document are passed in chunks, so we append to the $body property for temporary storage.
* Returning a length shorter than the length of $data passed in will cause cURL to abort the request with CURLE_WRITE_ERROR
*
* @since 3.6.0
* @access private
* @return int
*/
private function stream_body( $handle, $data ) {
$data_length = strlen( $data );
if ( $this->max_body_length && ( $this->bytes_written_total + $data_length ) > $this->max_body_length ) {
$data_length = ( $this->max_body_length - $this->bytes_written_total );
$data = substr( $data, 0, $data_length );
}
if ( $this->stream_handle ) {
$bytes_written = fwrite( $this->stream_handle, $data );
} else {
$this->body .= $data;
$bytes_written = $data_length;
}
$this->bytes_written_total += $bytes_written;
// Upon event of this function returning less than strlen( $data ) curl will error with CURLE_WRITE_ERROR.
return $bytes_written;
}
/**
* Whether this class can be used for retrieving an URL.
*
* @static
* @since 2.7.0
*
* @return bool False means this class can not be used, true means it can.
*/
public static function test( $args = array() ) {
if ( ! function_exists( 'curl_init' ) || ! function_exists( 'curl_exec' ) )
return false;
$is_ssl = isset( $args['ssl'] ) && $args['ssl'];
if ( $is_ssl ) {
$curl_version = curl_version();
// Check whether this cURL version support SSL requests.
if ( ! (CURL_VERSION_SSL & $curl_version['features']) )
return false;
}
/**
* Filter whether cURL can be used as a transport for retrieving a URL.
*
* @since 2.7.0
*
* @param bool $use_class Whether the class can be used. Default true.
* @param array $args An array of request arguments.
*/
return apply_filters( 'use_curl_transport', true, $args );
}
}

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wp-includes/class-wp-http-encoding.php Normal file
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<?php
/**
* Implementation for deflate and gzip transfer encodings.
*
* Includes RFC 1950, RFC 1951, and RFC 1952.
*
* @since 2.8.0
* @package WordPress
* @subpackage HTTP
*/
class WP_Http_Encoding {
/**
* Compress raw string using the deflate format.
*
* Supports the RFC 1951 standard.
*
* @since 2.8.0
*
* @static
*
* @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|false False on failure.
*/
public static 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 2.8.0
*
* @static
*
* @param string $compressed String to decompress.
* @param int $length The optional length of the compressed data.
* @return string|bool False on failure.
*/
public static function decompress( $compressed, $length = null ) {
if ( empty($compressed) )
return $compressed;
if ( false !== ( $decompressed = @gzinflate( $compressed ) ) )
return $decompressed;
if ( false !== ( $decompressed = self::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 gzinflate()
* function cannot handle out of the box. The following function has been created from
* various snippets on the gzinflate() PHP documentation.
*
* Warning: Magic numbers within. Due to the potential different formats that the compressed
* data may be returned in, some "magic offsets" are needed to ensure proper decompression
* takes place. For a simple progmatic way to determine the magic offset in use, see:
* https://core.trac.wordpress.org/ticket/18273
*
* @since 2.8.1
* @link https://core.trac.wordpress.org/ticket/18273
* @link http://au2.php.net/manual/en/function.gzinflate.php#70875
* @link http://au2.php.net/manual/en/function.gzinflate.php#77336
*
* @static
*
* @param string $gzData String to decompress.
* @return string|bool False on failure.
*/
public static function compatible_gzinflate($gzData) {
// Compressed data might contain a full header, if so strip it for gzinflate().
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;
}
$decompressed = @gzinflate( substr($gzData, $i, -8) );
if ( false !== $decompressed )
return $decompressed;
}
// Compressed data from java.util.zip.Deflater amongst others.
$decompressed = @gzinflate( substr($gzData, 2) );
if ( false !== $decompressed )
return $decompressed;
return false;
}
/**
* What encoding types to accept and their priority values.
*
* @since 2.8.0
*
* @static
*
* @param string $url
* @param array $args
* @return string Types of encoding to accept.
*/
public static function accept_encoding( $url, $args ) {
$type = array();
$compression_enabled = self::is_available();
if ( ! $args['decompress'] ) // Decompression specifically disabled.
$compression_enabled = false;
elseif ( $args['stream'] ) // Disable when streaming to file.
$compression_enabled = false;
elseif ( isset( $args['limit_response_size'] ) ) // If only partial content is being requested, we won't be able to decompress it.
$compression_enabled = false;
if ( $compression_enabled ) {
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';
}
/**
* Filter the allowed encoding types.
*
* @since 3.6.0
*
* @param array $type Encoding types allowed. Accepts 'gzinflate',
* 'gzuncompress', 'gzdecode'.
* @param string $url URL of the HTTP request.
* @param array $args HTTP request arguments.
*/
$type = apply_filters( 'wp_http_accept_encoding', $type, $url, $args );
return implode(', ', $type);
}
/**
* What encoding the content used when it was compressed to send in the headers.
*
* @since 2.8.0
*
* @static
*
* @return string Content-Encoding string to send in the header.
*/
public static function content_encoding() {
return 'deflate';
}
/**
* Whether the content be decoded based on the headers.
*
* @since 2.8.0
*
* @static
*
* @param array|string $headers All of the available headers.
* @return bool
*/
public static function should_decode($headers) {
if ( is_array( $headers ) ) {
if ( array_key_exists('content-encoding', $headers) && ! empty( $headers['content-encoding'] ) )
return true;
} elseif ( 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 2.8.0
*
* @static
*
* @return bool
*/
public static function is_available() {
return ( function_exists('gzuncompress') || function_exists('gzdeflate') || function_exists('gzinflate') );
}
}

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<?php
/**
* 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.
*
* Please note that only BASIC authentication is supported by most transports.
* cURL MAY support more methods (such as NTLM authentication) depending on your environment.
*
* 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, wildcards using * are supported, eg. *.wordpress.org</li>
* </ol>
*
* An example can be as seen below.
*
* define('WP_PROXY_HOST', '192.168.84.101');
* define('WP_PROXY_PORT', '8080');
* define('WP_PROXY_BYPASS_HOSTS', 'localhost, www.example.com, *.wordpress.org');
*
* @link https://core.trac.wordpress.org/ticket/4011 Proxy support ticket in WordPress.
* @link https://core.trac.wordpress.org/ticket/14636 Allow wildcard domains in WP_PROXY_BYPASS_HOSTS
* @since 2.8.0
*/
class WP_HTTP_Proxy {
/**
* Whether proxy connection should be used.
*
* @since 2.8.0
*
* @use WP_PROXY_HOST
* @use WP_PROXY_PORT
*
* @return bool
*/
public function is_enabled() {
return defined('WP_PROXY_HOST') && defined('WP_PROXY_PORT');
}
/**
* Whether authentication should be used.
*
* @since 2.8.0
*
* @use WP_PROXY_USERNAME
* @use WP_PROXY_PASSWORD
*
* @return bool
*/
public function use_authentication() {
return defined('WP_PROXY_USERNAME') && defined('WP_PROXY_PASSWORD');
}
/**
* Retrieve the host for the proxy server.
*
* @since 2.8.0
*
* @return string
*/
public function host() {
if ( defined('WP_PROXY_HOST') )
return WP_PROXY_HOST;
return '';
}
/**
* Retrieve the port for the proxy server.
*
* @since 2.8.0
*
* @return string
*/
public function port() {
if ( defined('WP_PROXY_PORT') )
return WP_PROXY_PORT;
return '';
}
/**
* Retrieve the username for proxy authentication.
*
* @since 2.8.0
*
* @return string
*/
public function username() {
if ( defined('WP_PROXY_USERNAME') )
return WP_PROXY_USERNAME;
return '';
}
/**
* Retrieve the password for proxy authentication.
*
* @since 2.8.0
*
* @return string
*/
public function password() {
if ( defined('WP_PROXY_PASSWORD') )
return WP_PROXY_PASSWORD;
return '';
}
/**
* Retrieve authentication string for proxy authentication.
*
* @since 2.8.0
*
* @return string
*/
public function authentication() {
return $this->username() . ':' . $this->password();
}
/**
* Retrieve header string for proxy authentication.
*
* @since 2.8.0
*
* @return string
*/
public function authentication_header() {
return 'Proxy-Authorization: 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.
*
* @since 2.8.0
*
* @staticvar array|null $bypass_hosts
* @staticvar array $wildcard_regex
*
* @param string $uri URI to check.
* @return bool True, to send through the proxy and false if, the proxy should not be used.
*/
public 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') );
/**
* Filter whether to preempt sending the request through the proxy server.
*
* Returning false will bypass the proxy; returning true will send
* the request through the proxy. Returning null bypasses the filter.
*
* @since 3.5.0
*
* @param null $override Whether to override the request result. Default null.
* @param string $uri URL to check.
* @param array $check Associative array result of parsing the URI.
* @param array $home Associative array result of parsing the site URL.
*/
$result = apply_filters( 'pre_http_send_through_proxy', null, $uri, $check, $home );
if ( ! is_null( $result ) )
return $result;
if ( 'localhost' == $check['host'] || ( isset( $home['host'] ) && $home['host'] == $check['host'] ) )
return false;
if ( !defined('WP_PROXY_BYPASS_HOSTS') )
return true;
static $bypass_hosts = null;
static $wildcard_regex = array();
if ( null === $bypass_hosts ) {
$bypass_hosts = preg_split('|,\s*|', WP_PROXY_BYPASS_HOSTS);
if ( false !== strpos(WP_PROXY_BYPASS_HOSTS, '*') ) {
$wildcard_regex = array();
foreach ( $bypass_hosts as $host )
$wildcard_regex[] = str_replace( '\*', '.+', preg_quote( $host, '/' ) );
$wildcard_regex = '/^(' . implode('|', $wildcard_regex) . ')$/i';
}
}
if ( !empty($wildcard_regex) )
return !preg_match($wildcard_regex, $check['host']);
else
return !in_array( $check['host'], $bypass_hosts );
}
}

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<?php
/**
* HTTP request method uses PHP Streams to retrieve the url.
*
* @since 2.7.0
* @since 3.7.0 Combined with the fsockopen transport and switched to stream_socket_client().
*/
class WP_Http_Streams {
/**
* Send a HTTP request to a URI using PHP Streams.
*
* @see WP_Http::request For default options descriptions.
*
* @since 2.7.0
* @since 3.7.0 Combined with the fsockopen transport and switched to stream_socket_client().
*
* @access public
* @param string $url The request URL.
* @param string|array $args Optional. Override the defaults.
* @return array|WP_Error Array containing 'headers', 'body', 'response', 'cookies', 'filename'. A WP_Error instance upon error
*/
public function request($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'] );
} elseif ( 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);
$connect_host = $arrURL['host'];
$secure_transport = ( $arrURL['scheme'] == 'ssl' || $arrURL['scheme'] == 'https' );
if ( ! isset( $arrURL['port'] ) ) {
if ( $arrURL['scheme'] == 'ssl' || $arrURL['scheme'] == 'https' ) {
$arrURL['port'] = 443;
$secure_transport = true;
} else {
$arrURL['port'] = 80;
}
}
// Always pass a Path, defaulting to the root in cases such as http://example.com
if ( ! isset( $arrURL['path'] ) ) {
$arrURL['path'] = '/';
}
if ( isset( $r['headers']['Host'] ) || isset( $r['headers']['host'] ) ) {
if ( isset( $r['headers']['Host'] ) )
$arrURL['host'] = $r['headers']['Host'];
else
$arrURL['host'] = $r['headers']['host'];
unset( $r['headers']['Host'], $r['headers']['host'] );
}
/*
* Certain versions of PHP have issues with 'localhost' and IPv6, It attempts to connect
* to ::1, which fails when the server is not set up for it. For compatibility, always
* connect to the IPv4 address.
*/
if ( 'localhost' == strtolower( $connect_host ) )
$connect_host = '127.0.0.1';
$connect_host = $secure_transport ? 'ssl://' . $connect_host : 'tcp://' . $connect_host;
$is_local = isset( $r['local'] ) && $r['local'];
$ssl_verify = isset( $r['sslverify'] ) && $r['sslverify'];
if ( $is_local ) {
/**
* Filter whether SSL should be verified for local requests.
*
* @since 2.8.0
*
* @param bool $ssl_verify Whether to verify the SSL connection. Default true.
*/
$ssl_verify = apply_filters( 'https_local_ssl_verify', $ssl_verify );
} elseif ( ! $is_local ) {
/**
* Filter whether SSL should be verified for non-local requests.
*
* @since 2.8.0
*
* @param bool $ssl_verify Whether to verify the SSL connection. Default true.
*/
$ssl_verify = apply_filters( 'https_ssl_verify', $ssl_verify );
}
$proxy = new WP_HTTP_Proxy();
$context = stream_context_create( array(
'ssl' => array(
'verify_peer' => $ssl_verify,
//'CN_match' => $arrURL['host'], // This is handled by self::verify_ssl_certificate()
'capture_peer_cert' => $ssl_verify,
'SNI_enabled' => true,
'cafile' => $r['sslcertificates'],
'allow_self_signed' => ! $ssl_verify,
)
) );
$timeout = (int) floor( $r['timeout'] );
$utimeout = $timeout == $r['timeout'] ? 0 : 1000000 * $r['timeout'] % 1000000;
$connect_timeout = max( $timeout, 1 );
// Store error number.
$connection_error = null;
// Store error string.
$connection_error_str = null;
if ( !WP_DEBUG ) {
// In the event that the SSL connection fails, silence the many PHP Warnings.
if ( $secure_transport )
$error_reporting = error_reporting(0);
if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) )
$handle = @stream_socket_client( 'tcp://' . $proxy->host() . ':' . $proxy->port(), $connection_error, $connection_error_str, $connect_timeout, STREAM_CLIENT_CONNECT, $context );
else
$handle = @stream_socket_client( $connect_host . ':' . $arrURL['port'], $connection_error, $connection_error_str, $connect_timeout, STREAM_CLIENT_CONNECT, $context );
if ( $secure_transport )
error_reporting( $error_reporting );
} else {
if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) )
$handle = stream_socket_client( 'tcp://' . $proxy->host() . ':' . $proxy->port(), $connection_error, $connection_error_str, $connect_timeout, STREAM_CLIENT_CONNECT, $context );
else
$handle = stream_socket_client( $connect_host . ':' . $arrURL['port'], $connection_error, $connection_error_str, $connect_timeout, STREAM_CLIENT_CONNECT, $context );
}
if ( false === $handle ) {
// SSL connection failed due to expired/invalid cert, or, OpenSSL configuration is broken.
if ( $secure_transport && 0 === $connection_error && '' === $connection_error_str )
return new WP_Error( 'http_request_failed', __( 'The SSL certificate for the host could not be verified.' ) );
return new WP_Error('http_request_failed', $connection_error . ': ' . $connection_error_str );
}
// Verify that the SSL certificate is valid for this request.
if ( $secure_transport && $ssl_verify && ! $proxy->is_enabled() ) {
if ( ! self::verify_ssl_certificate( $handle, $arrURL['host'] ) )
return new WP_Error( 'http_request_failed', __( 'The SSL certificate for the host could not be verified.' ) );
}
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'] : '' );
$strHeaders = strtoupper($r['method']) . ' ' . $requestPath . ' HTTP/' . $r['httpversion'] . "\r\n";
$include_port_in_host_header = (
( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) ||
( 'http' == $arrURL['scheme'] && 80 != $arrURL['port'] ) ||
( 'https' == $arrURL['scheme'] && 443 != $arrURL['port'] )
);
if ( $include_port_in_host_header ) {
$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'] ) {
stream_set_blocking( $handle, 0 );
fclose( $handle );
return array( 'headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array() );
}
$strResponse = '';
$bodyStarted = false;
$keep_reading = true;
$block_size = 4096;
if ( isset( $r['limit_response_size'] ) )
$block_size = min( $block_size, $r['limit_response_size'] );
// If streaming to a file setup the file handle.
if ( $r['stream'] ) {
if ( ! WP_DEBUG )
$stream_handle = @fopen( $r['filename'], 'w+' );
else
$stream_handle = fopen( $r['filename'], 'w+' );
if ( ! $stream_handle )
return new WP_Error( 'http_request_failed', sprintf( __( 'Could not open handle for fopen() to %s' ), $r['filename'] ) );
$bytes_written = 0;
while ( ! feof($handle) && $keep_reading ) {
$block = fread( $handle, $block_size );
if ( ! $bodyStarted ) {
$strResponse .= $block;
if ( strpos( $strResponse, "\r\n\r\n" ) ) {
$process = WP_Http::processResponse( $strResponse );
$bodyStarted = true;
$block = $process['body'];
unset( $strResponse );
$process['body'] = '';
}
}
$this_block_size = strlen( $block );
if ( isset( $r['limit_response_size'] ) && ( $bytes_written + $this_block_size ) > $r['limit_response_size'] ) {
$this_block_size = ( $r['limit_response_size'] - $bytes_written );
$block = substr( $block, 0, $this_block_size );
}
$bytes_written_to_file = fwrite( $stream_handle, $block );
if ( $bytes_written_to_file != $this_block_size ) {
fclose( $handle );
fclose( $stream_handle );
return new WP_Error( 'http_request_failed', __( 'Failed to write request to temporary file.' ) );
}
$bytes_written += $bytes_written_to_file;
$keep_reading = !isset( $r['limit_response_size'] ) || $bytes_written < $r['limit_response_size'];
}
fclose( $stream_handle );
} else {
$header_length = 0;
while ( ! feof( $handle ) && $keep_reading ) {
$block = fread( $handle, $block_size );
$strResponse .= $block;
if ( ! $bodyStarted && strpos( $strResponse, "\r\n\r\n" ) ) {
$header_length = strpos( $strResponse, "\r\n\r\n" ) + 4;
$bodyStarted = true;
}
$keep_reading = ( ! $bodyStarted || !isset( $r['limit_response_size'] ) || strlen( $strResponse ) < ( $header_length + $r['limit_response_size'] ) );
}
$process = WP_Http::processResponse( $strResponse );
unset( $strResponse );
}
fclose( $handle );
$arrHeaders = WP_Http::processHeaders( $process['headers'], $url );
$response = array(
'headers' => $arrHeaders['headers'],
// Not yet processed.
'body' => null,
'response' => $arrHeaders['response'],
'cookies' => $arrHeaders['cookies'],
'filename' => $r['filename']
);
// Handle redirects.
if ( false !== ( $redirect_response = WP_HTTP::handle_redirects( $url, $r, $response ) ) )
return $redirect_response;
// 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'] );
if ( isset( $r['limit_response_size'] ) && strlen( $process['body'] ) > $r['limit_response_size'] )
$process['body'] = substr( $process['body'], 0, $r['limit_response_size'] );
$response['body'] = $process['body'];
return $response;
}
/**
* Verifies the received SSL certificate against it's Common Names and subjectAltName fields
*
* PHP's SSL verifications only verify that it's a valid Certificate, it doesn't verify if
* the certificate is valid for the hostname which was requested.
* This function verifies the requested hostname against certificate's subjectAltName field,
* if that is empty, or contains no DNS entries, a fallback to the Common Name field is used.
*
* IP Address support is included if the request is being made to an IP address.
*
* @since 3.7.0
* @static
*
* @param stream $stream The PHP Stream which the SSL request is being made over
* @param string $host The hostname being requested
* @return bool If the cerficiate presented in $stream is valid for $host
*/
public static function verify_ssl_certificate( $stream, $host ) {
$context_options = stream_context_get_options( $stream );
if ( empty( $context_options['ssl']['peer_certificate'] ) )
return false;
$cert = openssl_x509_parse( $context_options['ssl']['peer_certificate'] );
if ( ! $cert )
return false;
/*
* If the request is being made to an IP address, we'll validate against IP fields
* in the cert (if they exist)
*/
$host_type = ( WP_HTTP::is_ip_address( $host ) ? 'ip' : 'dns' );
$certificate_hostnames = array();
if ( ! empty( $cert['extensions']['subjectAltName'] ) ) {
$match_against = preg_split( '/,\s*/', $cert['extensions']['subjectAltName'] );
foreach ( $match_against as $match ) {
list( $match_type, $match_host ) = explode( ':', $match );
if ( $host_type == strtolower( trim( $match_type ) ) ) // IP: or DNS:
$certificate_hostnames[] = strtolower( trim( $match_host ) );
}
} elseif ( !empty( $cert['subject']['CN'] ) ) {
// Only use the CN when the certificate includes no subjectAltName extension.
$certificate_hostnames[] = strtolower( $cert['subject']['CN'] );
}
// Exact hostname/IP matches.
if ( in_array( strtolower( $host ), $certificate_hostnames ) )
return true;
// IP's can't be wildcards, Stop processing.
if ( 'ip' == $host_type )
return false;
// Test to see if the domain is at least 2 deep for wildcard support.
if ( substr_count( $host, '.' ) < 2 )
return false;
// Wildcard subdomains certs (*.example.com) are valid for a.example.com but not a.b.example.com.
$wildcard_host = preg_replace( '/^[^.]+\./', '*.', $host );
return in_array( strtolower( $wildcard_host ), $certificate_hostnames );
}
/**
* Whether this class can be used for retrieving a URL.
*
* @static
* @access public
* @since 2.7.0
* @since 3.7.0 Combined with the fsockopen transport and switched to stream_socket_client().
*
* @return bool False means this class can not be used, true means it can.
*/
public static function test( $args = array() ) {
if ( ! function_exists( 'stream_socket_client' ) )
return false;
$is_ssl = isset( $args['ssl'] ) && $args['ssl'];
if ( $is_ssl ) {
if ( ! extension_loaded( 'openssl' ) )
return false;
if ( ! function_exists( 'openssl_x509_parse' ) )
return false;
}
/**
* Filter whether streams can be used as a transport for retrieving a URL.
*
* @since 2.7.0
*
* @param bool $use_class Whether the class can be used. Default true.
* @param array $args Request arguments.
*/
return apply_filters( 'use_streams_transport', true, $args );
}
}
/**
* Deprecated HTTP Transport method which used fsockopen.
*
* This class is not used, and is included for backwards compatibility only.
* All code should make use of WP_HTTP directly through it's API.
*
* @see WP_HTTP::request
*
* @since 2.7.0
* @deprecated 3.7.0 Please use WP_HTTP::request() directly
*/
class WP_HTTP_Fsockopen extends WP_HTTP_Streams {
// For backwards compatibility for users who are using the class directly.
}

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<?php
/**
* Simple and uniform HTTP request API.
*
* Will eventually replace and standardize the WordPress HTTP requests made.
*
* @link https://core.trac.wordpress.org/ticket/4779 HTTP API Proposal
*
* @package WordPress
* @subpackage HTTP
* @since 2.7.0
*/
/**
* Returns the initialized WP_Http Object
*
* @since 2.7.0
* @access private
*
* @staticvar WP_Http $http
*
* @return WP_Http HTTP Transport object.
*/
function _wp_http_get_object() {
static $http = null;
if ( is_null( $http ) ) {
$http = new WP_Http();
}
return $http;
}
/**
* Retrieve the raw response from a safe HTTP request.
*
* 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.
*
* @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. Request arguments. Default empty array.
* @return WP_Error|array The response or WP_Error on failure.
*/
function wp_safe_remote_request( $url, $args = array() ) {
$args['reject_unsafe_urls'] = true;
$http = _wp_http_get_object();
return $http->request( $url, $args );
}
/**
* Retrieve the raw response from a safe HTTP request using the GET method.
*
* 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.
*
* @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. Request arguments. Default empty array.
* @return WP_Error|array The response or WP_Error on failure.
*/
function wp_safe_remote_get( $url, $args = array() ) {
$args['reject_unsafe_urls'] = true;
$http = _wp_http_get_object();
return $http->get( $url, $args );
}
/**
* Retrieve the raw response from a safe HTTP request using the POST method.
*
* 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.
*
* @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. Request arguments. Default empty array.
* @return WP_Error|array The response or WP_Error on failure.
*/
function wp_safe_remote_post( $url, $args = array() ) {
$args['reject_unsafe_urls'] = true;
$http = _wp_http_get_object();
return $http->post( $url, $args );
}
/**
* Retrieve the raw response from a safe HTTP request using the HEAD method.
*
* 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.
*
* @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. Request arguments. Default empty array.
* @return WP_Error|array The response or WP_Error on failure.
*/
function wp_safe_remote_head( $url, $args = array() ) {
$args['reject_unsafe_urls'] = true;
$http = _wp_http_get_object();
return $http->head( $url, $args );
}
/**
* Retrieve the raw response from the HTTP request.
*
* The array structure is a little complex:
*
* $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.
*
* $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.
*
* Request method defaults for helper functions:
* - Default 'GET' for wp_remote_get()
* - Default 'POST' for wp_remote_post()
* - Default 'HEAD' for wp_remote_head()
*
* @since 2.7.0
*
* @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()) {
$http = _wp_http_get_object();
return $http->request( $url, $args );
}
/**
* Retrieve the raw response from the HTTP request using the GET method.
*
* @since 2.7.0
*
* @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 $args Optional. Request arguments. Default empty array.
* @return WP_Error|array The response or WP_Error on failure.
*/
function wp_remote_get($url, $args = array()) {
$http = _wp_http_get_object();
return $http->get( $url, $args );
}
/**
* Retrieve the raw response from the HTTP request using the POST method.
*
* @since 2.7.0
*
* @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 $args Optional. Request arguments. Default empty array.
* @return WP_Error|array The response or WP_Error on failure.
*/
function wp_remote_post($url, $args = array()) {
$http = _wp_http_get_object();
return $http->post( $url, $args );
}
/**
* Retrieve the raw response from the HTTP request using the HEAD method.
*
* @since 2.7.0
*
* @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 $args Optional. Request arguments. Default empty array.
* @return WP_Error|array The response or WP_Error on failure.
*/
function wp_remote_head($url, $args = array()) {
$http = _wp_http_get_object();
return $http->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 doesn't 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 int|string The response code as an integer. 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'];
}
/**
* Determines if there is an HTTP Transport that can process this request.
*
* @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.
*
* @return bool
*/
function wp_http_supports( $capabilities = array(), $url = null ) {
$http = _wp_http_get_object();
$capabilities = wp_parse_args( $capabilities );
$count = count( $capabilities );
// If we have a numeric $capabilities array, spoof a wp_remote_request() associative $args array
if ( $count && count( array_filter( array_keys( $capabilities ), 'is_numeric' ) ) == $count ) {
$capabilities = array_combine( array_values( $capabilities ), array_fill( 0, $count, true ) );
}
if ( $url && !isset( $capabilities['ssl'] ) ) {
$scheme = parse_url( $url, PHP_URL_SCHEME );
if ( 'https' == $scheme || 'ssl' == $scheme ) {
$capabilities['ssl'] = true;
}
}
return (bool) $http->_get_first_available_transport( $capabilities );
}
/**
* Get the HTTP Origin of the current request.
*
* @since 3.4.0
*
* @return string URL of the origin. Empty string if no origin.
*/
function get_http_origin() {
$origin = '';
if ( ! empty ( $_SERVER[ 'HTTP_ORIGIN' ] ) )
$origin = $_SERVER[ 'HTTP_ORIGIN' ];
/**
* Change the origin of an HTTP request.
*
* @since 3.4.0
*
* @param string $origin The original origin for the request.
*/
return apply_filters( 'http_origin', $origin );
}
/**
* Retrieve list of allowed HTTP origins.
*
* @since 3.4.0
*
* @return array Array of origin URLs.
*/
function get_allowed_http_origins() {
$admin_origin = parse_url( admin_url() );
$home_origin = parse_url( home_url() );
// @todo preserve port?
$allowed_origins = array_unique( array(
'http://' . $admin_origin[ 'host' ],
'https://' . $admin_origin[ 'host' ],
'http://' . $home_origin[ 'host' ],
'https://' . $home_origin[ 'host' ],
) );
/**
* Change the origin types allowed for HTTP requests.
*
* @since 3.4.0
*
* @param array $allowed_origins {
* Default allowed HTTP origins.
* @type string Non-secure URL for admin origin.
* @type string Secure URL for admin origin.
* @type string Non-secure URL for home origin.
* @type string Secure URL for home origin.
* }
*/
return apply_filters( 'allowed_http_origins' , $allowed_origins );
}
/**
* Determines if the HTTP origin is an authorized one.
*
* @since 3.4.0
*
* @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;
if ( null === $origin )
$origin = get_http_origin();
if ( $origin && ! in_array( $origin, get_allowed_http_origins() ) )
$origin = '';
/**
* Change the allowed HTTP origin result.
*
* @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.
*/
return apply_filters( 'allowed_http_origin', $origin, $origin_arg );
}
/**
* Send Access-Control-Allow-Origin and related headers if the current request
* is from an allowed origin.
*
* If the request is an OPTIONS request, the script exits with either access
* control headers sent, or a 403 response if the origin is not allowed. For
* other request methods, you will receive a return value.
*
* @since 3.4.0
*
* @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();
if ( is_allowed_http_origin( $origin ) ) {
@header( 'Access-Control-Allow-Origin: ' . $origin );
@header( 'Access-Control-Allow-Credentials: true' );
if ( 'OPTIONS' === $_SERVER['REQUEST_METHOD'] )
exit;
return $origin;
}
if ( 'OPTIONS' === $_SERVER['REQUEST_METHOD'] ) {
status_header( 403 );
exit;
}
return false;
}
/**
* Validate a URL for safe use in the HTTP API.
*
* @since 3.5.2
*
* @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 || strtolower( $url ) !== strtolower( $original_url ) )
return false;
$parsed_url = @parse_url( $url );
if ( ! $parsed_url || empty( $parsed_url['host'] ) )
return false;
if ( isset( $parsed_url['user'] ) || isset( $parsed_url['pass'] ) )
return false;
if ( false !== strpbrk( $parsed_url['host'], ':#?[]' ) )
return false;
$parsed_home = @parse_url( get_option( 'home' ) );
$same_host = strtolower( $parsed_home['host'] ) === strtolower( $parsed_url['host'] );
if ( ! $same_host ) {
$host = trim( $parsed_url['host'], '.' );
if ( preg_match( '#^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$#', $host ) ) {
$ip = $host;
} else {
$ip = gethostbyname( $host );
if ( $ip === $host ) // Error condition for gethostbyname()
$ip = false;
}
if ( $ip ) {
$parts = array_map( 'intval', explode( '.', $ip ) );
if ( 127 === $parts[0] || 10 === $parts[0]
|| ( 172 === $parts[0] && 16 <= $parts[1] && 31 >= $parts[1] )
|| ( 192 === $parts[0] && 168 === $parts[1] )
) {
// If host appears local, reject unless specifically allowed.
/**
* Check if HTTP request is external or not.
*
* Allows to change and allow external requests for the HTTP request.
*
* @since 3.6.0
*
* @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.
*/
if ( ! apply_filters( 'http_request_host_is_external', false, $host, $url ) )
return false;
}
}
}
if ( empty( $parsed_url['port'] ) )
return $url;
$port = $parsed_url['port'];
if ( 80 === $port || 443 === $port || 8080 === $port )
return $url;
if ( $parsed_home && $same_host && isset( $parsed_home['port'] ) && $parsed_home['port'] === $port )
return $url;
return false;
}
/**
* Whitelists allowed redirect hosts for safe HTTP requests as well.
*
* Attached to the http_request_host_is_external filter.
*
* @since 3.6.0
*
* @param bool $is_external
* @param string $host
* @return bool
*/
function allowed_http_request_hosts( $is_external, $host ) {
if ( ! $is_external && wp_validate_redirect( 'http://' . $host ) )
$is_external = true;
return $is_external;
}
/**
* Whitelists any domain in a multisite installation for safe HTTP requests.
*
* Attached to the http_request_host_is_external filter.
*
* @since 3.6.0
*
* @global wpdb $wpdb
* @staticvar array $queried
*
* @param bool $is_external
* @param string $host
* @return bool
*/
function ms_allowed_http_request_hosts( $is_external, $host ) {
global $wpdb;
static $queried = array();
if ( $is_external )
return $is_external;
if ( $host === get_current_site()->domain )
return true;
if ( isset( $queried[ $host ] ) )
return $queried[ $host ];
$queried[ $host ] = (bool) $wpdb->get_var( $wpdb->prepare( "SELECT domain FROM $wpdb->blogs WHERE domain = %s LIMIT 1", $host ) );
return $queried[ $host ];
}

555
wp-includes/http.php
View File

@ -2,7 +2,8 @@
/**
* Simple and uniform HTTP request API.
*
* Will eventually replace and standardize the WordPress HTTP requests made.
* Standardizes the HTTP requests for WordPress. Handles cookies, gzip encoding and decoding, chunk
* decoding, if HTTP 1.1 and various other difficult HTTP protocol implementations.
*
* @link https://core.trac.wordpress.org/ticket/4779 HTTP API Proposal
*
@ -11,548 +12,10 @@
* @since 2.7.0
*/
/**
* Returns the initialized WP_Http Object
*
* @since 2.7.0
* @access private
*
* @staticvar WP_Http $http
*
* @return WP_Http HTTP Transport object.
*/
function _wp_http_get_object() {
static $http = null;
if ( is_null( $http ) ) {
$http = new WP_Http();
}
return $http;
}
/**
* Retrieve the raw response from a safe HTTP request.
*
* 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.
*
* @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. Request arguments. Default empty array.
* @return WP_Error|array The response or WP_Error on failure.
*/
function wp_safe_remote_request( $url, $args = array() ) {
$args['reject_unsafe_urls'] = true;
$http = _wp_http_get_object();
return $http->request( $url, $args );
}
/**
* Retrieve the raw response from a safe HTTP request using the GET method.
*
* 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.
*
* @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. Request arguments. Default empty array.
* @return WP_Error|array The response or WP_Error on failure.
*/
function wp_safe_remote_get( $url, $args = array() ) {
$args['reject_unsafe_urls'] = true;
$http = _wp_http_get_object();
return $http->get( $url, $args );
}
/**
* Retrieve the raw response from a safe HTTP request using the POST method.
*
* 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.
*
* @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. Request arguments. Default empty array.
* @return WP_Error|array The response or WP_Error on failure.
*/
function wp_safe_remote_post( $url, $args = array() ) {
$args['reject_unsafe_urls'] = true;
$http = _wp_http_get_object();
return $http->post( $url, $args );
}
/**
* Retrieve the raw response from a safe HTTP request using the HEAD method.
*
* 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.
*
* @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. Request arguments. Default empty array.
* @return WP_Error|array The response or WP_Error on failure.
*/
function wp_safe_remote_head( $url, $args = array() ) {
$args['reject_unsafe_urls'] = true;
$http = _wp_http_get_object();
return $http->head( $url, $args );
}
/**
* Retrieve the raw response from the HTTP request.
*
* The array structure is a little complex:
*
* $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.
*
* $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.
*
* Request method defaults for helper functions:
* - Default 'GET' for wp_remote_get()
* - Default 'POST' for wp_remote_post()
* - Default 'HEAD' for wp_remote_head()
*
* @since 2.7.0
*
* @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()) {
$http = _wp_http_get_object();
return $http->request( $url, $args );
}
/**
* Retrieve the raw response from the HTTP request using the GET method.
*
* @since 2.7.0
*
* @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 $args Optional. Request arguments. Default empty array.
* @return WP_Error|array The response or WP_Error on failure.
*/
function wp_remote_get($url, $args = array()) {
$http = _wp_http_get_object();
return $http->get( $url, $args );
}
/**
* Retrieve the raw response from the HTTP request using the POST method.
*
* @since 2.7.0
*
* @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 $args Optional. Request arguments. Default empty array.
* @return WP_Error|array The response or WP_Error on failure.
*/
function wp_remote_post($url, $args = array()) {
$http = _wp_http_get_object();
return $http->post( $url, $args );
}
/**
* Retrieve the raw response from the HTTP request using the HEAD method.
*
* @since 2.7.0
*
* @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 $args Optional. Request arguments. Default empty array.
* @return WP_Error|array The response or WP_Error on failure.
*/
function wp_remote_head($url, $args = array()) {
$http = _wp_http_get_object();
return $http->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 doesn't 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 int|string The response code as an integer. 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'];
}
/**
* Determines if there is an HTTP Transport that can process this request.
*
* @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.
*
* @return bool
*/
function wp_http_supports( $capabilities = array(), $url = null ) {
$http = _wp_http_get_object();
$capabilities = wp_parse_args( $capabilities );
$count = count( $capabilities );
// If we have a numeric $capabilities array, spoof a wp_remote_request() associative $args array
if ( $count && count( array_filter( array_keys( $capabilities ), 'is_numeric' ) ) == $count ) {
$capabilities = array_combine( array_values( $capabilities ), array_fill( 0, $count, true ) );
}
if ( $url && !isset( $capabilities['ssl'] ) ) {
$scheme = parse_url( $url, PHP_URL_SCHEME );
if ( 'https' == $scheme || 'ssl' == $scheme ) {
$capabilities['ssl'] = true;
}
}
return (bool) $http->_get_first_available_transport( $capabilities );
}
/**
* Get the HTTP Origin of the current request.
*
* @since 3.4.0
*
* @return string URL of the origin. Empty string if no origin.
*/
function get_http_origin() {
$origin = '';
if ( ! empty ( $_SERVER[ 'HTTP_ORIGIN' ] ) )
$origin = $_SERVER[ 'HTTP_ORIGIN' ];
/**
* Change the origin of an HTTP request.
*
* @since 3.4.0
*
* @param string $origin The original origin for the request.
*/
return apply_filters( 'http_origin', $origin );
}
/**
* Retrieve list of allowed HTTP origins.
*
* @since 3.4.0
*
* @return array Array of origin URLs.
*/
function get_allowed_http_origins() {
$admin_origin = parse_url( admin_url() );
$home_origin = parse_url( home_url() );
// @todo preserve port?
$allowed_origins = array_unique( array(
'http://' . $admin_origin[ 'host' ],
'https://' . $admin_origin[ 'host' ],
'http://' . $home_origin[ 'host' ],
'https://' . $home_origin[ 'host' ],
) );
/**
* Change the origin types allowed for HTTP requests.
*
* @since 3.4.0
*
* @param array $allowed_origins {
* Default allowed HTTP origins.
* @type string Non-secure URL for admin origin.
* @type string Secure URL for admin origin.
* @type string Non-secure URL for home origin.
* @type string Secure URL for home origin.
* }
*/
return apply_filters( 'allowed_http_origins' , $allowed_origins );
}
/**
* Determines if the HTTP origin is an authorized one.
*
* @since 3.4.0
*
* @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;
if ( null === $origin )
$origin = get_http_origin();
if ( $origin && ! in_array( $origin, get_allowed_http_origins() ) )
$origin = '';
/**
* Change the allowed HTTP origin result.
*
* @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.
*/
return apply_filters( 'allowed_http_origin', $origin, $origin_arg );
}
/**
* Send Access-Control-Allow-Origin and related headers if the current request
* is from an allowed origin.
*
* If the request is an OPTIONS request, the script exits with either access
* control headers sent, or a 403 response if the origin is not allowed. For
* other request methods, you will receive a return value.
*
* @since 3.4.0
*
* @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();
if ( is_allowed_http_origin( $origin ) ) {
@header( 'Access-Control-Allow-Origin: ' . $origin );
@header( 'Access-Control-Allow-Credentials: true' );
if ( 'OPTIONS' === $_SERVER['REQUEST_METHOD'] )
exit;
return $origin;
}
if ( 'OPTIONS' === $_SERVER['REQUEST_METHOD'] ) {
status_header( 403 );
exit;
}
return false;
}
/**
* Validate a URL for safe use in the HTTP API.
*
* @since 3.5.2
*
* @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 || strtolower( $url ) !== strtolower( $original_url ) )
return false;
$parsed_url = @parse_url( $url );
if ( ! $parsed_url || empty( $parsed_url['host'] ) )
return false;
if ( isset( $parsed_url['user'] ) || isset( $parsed_url['pass'] ) )
return false;
if ( false !== strpbrk( $parsed_url['host'], ':#?[]' ) )
return false;
$parsed_home = @parse_url( get_option( 'home' ) );
$same_host = strtolower( $parsed_home['host'] ) === strtolower( $parsed_url['host'] );
if ( ! $same_host ) {
$host = trim( $parsed_url['host'], '.' );
if ( preg_match( '#^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$#', $host ) ) {
$ip = $host;
} else {
$ip = gethostbyname( $host );
if ( $ip === $host ) // Error condition for gethostbyname()
$ip = false;
}
if ( $ip ) {
$parts = array_map( 'intval', explode( '.', $ip ) );
if ( 127 === $parts[0] || 10 === $parts[0]
|| ( 172 === $parts[0] && 16 <= $parts[1] && 31 >= $parts[1] )
|| ( 192 === $parts[0] && 168 === $parts[1] )
) {
// If host appears local, reject unless specifically allowed.
/**
* Check if HTTP request is external or not.
*
* Allows to change and allow external requests for the HTTP request.
*
* @since 3.6.0
*
* @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.
*/
if ( ! apply_filters( 'http_request_host_is_external', false, $host, $url ) )
return false;
}
}
}
if ( empty( $parsed_url['port'] ) )
return $url;
$port = $parsed_url['port'];
if ( 80 === $port || 443 === $port || 8080 === $port )
return $url;
if ( $parsed_home && $same_host && isset( $parsed_home['port'] ) && $parsed_home['port'] === $port )
return $url;
return false;
}
/**
* Whitelists allowed redirect hosts for safe HTTP requests as well.
*
* Attached to the http_request_host_is_external filter.
*
* @since 3.6.0
*
* @param bool $is_external
* @param string $host
* @return bool
*/
function allowed_http_request_hosts( $is_external, $host ) {
if ( ! $is_external && wp_validate_redirect( 'http://' . $host ) )
$is_external = true;
return $is_external;
}
/**
* Whitelists any domain in a multisite installation for safe HTTP requests.
*
* Attached to the http_request_host_is_external filter.
*
* @since 3.6.0
*
* @global wpdb $wpdb
* @staticvar array $queried
*
* @param bool $is_external
* @param string $host
* @return bool
*/
function ms_allowed_http_request_hosts( $is_external, $host ) {
global $wpdb;
static $queried = array();
if ( $is_external )
return $is_external;
if ( $host === get_current_site()->domain )
return true;
if ( isset( $queried[ $host ] ) )
return $queried[ $host ];
$queried[ $host ] = (bool) $wpdb->get_var( $wpdb->prepare( "SELECT domain FROM $wpdb->blogs WHERE domain = %s LIMIT 1", $host ) );
return $queried[ $host ];
}
require_once( ABSPATH . WPINC . '/http-functions.php' );
require_once( ABSPATH . WPINC . '/class-http.php' );
require_once( ABSPATH . WPINC . '/class-wp-http-streams.php' );
require_once( ABSPATH . WPINC . '/class-wp-http-curl.php' );
require_once( ABSPATH . WPINC . '/class-wp-http-proxy.php' );
require_once( ABSPATH . WPINC . '/class-wp-http-cookie.php' );
require_once( ABSPATH . WPINC . '/class-wp-http-encoding.php' );

2
wp-includes/version.php
View File

@ -4,7 +4,7 @@
*
* @global string $wp_version
*/
$wp_version = '4.4-alpha-33747';
$wp_version = '4.4-alpha-33748';
/**
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.

1
wp-settings.php
View File

@ -148,7 +148,6 @@ require( ABSPATH . WPINC . '/shortcodes.php' );
require( ABSPATH . WPINC . '/class-wp-embed.php' );
require( ABSPATH . WPINC . '/media.php' );
require( ABSPATH . WPINC . '/http.php' );
require( ABSPATH . WPINC . '/class-http.php' );
require( ABSPATH . WPINC . '/widgets.php' );
require( ABSPATH . WPINC . '/nav-menu.php' );
require( ABSPATH . WPINC . '/nav-menu-template.php' );