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Remove support for the PHP HTTP Extension from WP_HTTP. The PHP HTTP Extension is a wrapper around libcurl and fopen() providing limited configuration and is supported on a minority of servers due to its non-default inclusion. Props sivel. Fixes @16978

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git-svn-id: http://svn.automattic.com/wordpress/trunk@17659 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
dd32 2011-04-19 04:22:59 +00:00
parent 2317e890c2
commit e2b914fbad
1 changed files with 6 additions and 173 deletions
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179
wp-includes/class-http.php
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@ -201,9 +201,8 @@ class WP_Http {
* Tests each transport in order to find a transport which matches the request arguements.
* Also caches the transport instance to be used later.
*
* The order for blocking requests is HTTP Extension, cURL, Streams, and finally Fsockopen.
* The order for non-blocking requests is cURL, Streams, Fsockopen() and finally, HTTP Extension.
* The HTTP Extension does not support non-blocking requests, but is included as a final resort.
* The order for blocking requests is cURL, Streams, and finally Fsockopen.
* The order for non-blocking requests is cURL, Streams and Fsockopen().
*
* There are currently issues with "localhost" not resolving correctly with DNS. This may cause
* an error "failed to open stream: A connection attempt failed because the connected party did
@ -220,9 +219,7 @@ class WP_Http {
private function _dispatch_request($url, $args) {
static $transports = array();
$request_order = isset($args['blocking']) && !$args['blocking'] ?
array('curl', 'streams', 'fsockopen', 'exthttp') : // non-blocking order
array('exthttp', 'curl', 'streams', 'fsockopen'); // blocking order
$request_order = array('curl', 'streams', 'fsockopen');
// Loop over each transport on each HTTP request looking for one which will serve this requests needs
foreach ( $request_order as $transport ) {
@ -702,7 +699,7 @@ class WP_Http_Fsockopen {
fclose( $stream_handle );
} else {
} else {
while ( ! feof($handle) )
$strResponse .= fread( $handle, 4096 );
@ -903,7 +900,7 @@ class WP_Http_Streams {
else
$processedHeaders = WP_Http::processHeaders($meta['wrapper_data']);
// Streams does not provide an error code which we can use to see why the request stream stoped.
// Streams does not provide an error code which we can use to see why the request stream stoped.
// We can however test to see if a location header is present and return based on that.
if ( isset($processedHeaders['headers']['location']) && 0 !== $args['_redirection'] )
return new WP_Error('http_request_failed', __('Too many redirects.'));
@ -942,170 +939,6 @@ class WP_Http_Streams {
}
}
/**
* HTTP request method uses HTTP extension to retrieve the url.
*
* Requires the HTTP extension to be installed. This would be the preferred transport since it can
* handle a lot of the problems that forces the others to use the HTTP version 1.0. Even if PHP 5.2+
* is being used, it doesn't mean that the HTTP extension will be enabled.
*
* @package WordPress
* @subpackage HTTP
* @since 2.7.0
*/
class WP_Http_ExtHttp {
/**
* Send a HTTP request to a URI using HTTP extension.
*
* Does not support non-blocking.
*
* @access public
* @since 2.7
*
* @param string $url
* @param str|array $args Optional. Override the defaults.
* @return array 'headers', 'body', 'cookies' and 'response' keys.
*/
function request($url, $args = array()) {
$defaults = array(
'method' => 'GET', 'timeout' => 5,
'redirection' => 5, 'httpversion' => '1.0',
'blocking' => true,
'headers' => array(), 'body' => null, 'cookies' => array()
);
$r = wp_parse_args( $args, $defaults );
if ( isset($r['headers']['User-Agent']) ) {
$r['user-agent'] = $r['headers']['User-Agent'];
unset($r['headers']['User-Agent']);
} else if ( isset($r['headers']['user-agent']) ) {
$r['user-agent'] = $r['headers']['user-agent'];
unset($r['headers']['user-agent']);
}
// Construct Cookie: header if any cookies are set
WP_Http::buildCookieHeader( $r );
switch ( $r['method'] ) {
case 'POST':
$r['method'] = HTTP_METH_POST;
break;
case 'HEAD':
$r['method'] = HTTP_METH_HEAD;
break;
case 'PUT':
$r['method'] = HTTP_METH_PUT;
break;
case 'GET':
default:
$r['method'] = HTTP_METH_GET;
}
$arrURL = parse_url($url);
if ( 'http' != $arrURL['scheme'] && 'https' != $arrURL['scheme'] )
$url = preg_replace('|^' . preg_quote($arrURL['scheme'], '|') . '|', 'http', $url);
$is_local = isset($args['local']) && $args['local'];
$ssl_verify = isset($args['sslverify']) && $args['sslverify'];
if ( $is_local )
$ssl_verify = apply_filters('https_local_ssl_verify', $ssl_verify);
elseif ( ! $is_local )
$ssl_verify = apply_filters('https_ssl_verify', $ssl_verify);
$r['timeout'] = (int) ceil( $r['timeout'] );
$options = array(
'timeout' => $r['timeout'],
'connecttimeout' => $r['timeout'],
'redirect' => $r['redirection'],
'useragent' => $r['user-agent'],
'headers' => $r['headers'],
'ssl' => array(
'verifypeer' => $ssl_verify,
'verifyhost' => $ssl_verify
)
);
// The HTTP extensions offers really easy proxy support.
$proxy = new WP_HTTP_Proxy();
if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) {
$options['proxyhost'] = $proxy->host();
$options['proxyport'] = $proxy->port();
$options['proxytype'] = HTTP_PROXY_HTTP;
if ( $proxy->use_authentication() ) {
$options['proxyauth'] = $proxy->authentication();
$options['proxyauthtype'] = HTTP_AUTH_ANY;
}
}
if ( !WP_DEBUG ) //Emits warning level notices for max redirects and timeouts
$strResponse = @http_request($r['method'], $url, $r['body'], $options, $info);
else
$strResponse = http_request($r['method'], $url, $r['body'], $options, $info); //Emits warning level notices for max redirects and timeouts
// Error may still be set, Response may return headers or partial document, and error
// contains a reason the request was aborted, eg, timeout expired or max-redirects reached.
if ( false === $strResponse || ! empty($info['error']) )
return new WP_Error('http_request_failed', $info['response_code'] . ': ' . $info['error']);
if ( ! $r['blocking'] )
return array( 'headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array() );
$headers_body = WP_HTTP::processResponse($strResponse);
$theHeaders = $headers_body['headers'];
$theBody = $headers_body['body'];
unset($headers_body);
$theHeaders = WP_Http::processHeaders($theHeaders);
if ( ! empty( $theBody ) && isset( $theHeaders['headers']['transfer-encoding'] ) && 'chunked' == $theHeaders['headers']['transfer-encoding'] ) {
if ( !WP_DEBUG )
$theBody = @http_chunked_decode($theBody);
else
$theBody = http_chunked_decode($theBody);
}
if ( true === $r['decompress'] && true === WP_Http_Encoding::should_decode($theHeaders['headers']) )
$theBody = http_inflate( $theBody );
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'] ) );
fwrite( $stream_handle, $theBody );
fclose( $stream_handle );
$theBody = '';
}
$theResponse = array();
$theResponse['code'] = $info['response_code'];
$theResponse['message'] = get_status_header_desc($info['response_code']);
return array( 'headers' => $theHeaders['headers'], 'body' => $theBody, 'response' => $theResponse, 'cookies' => $theHeaders['cookies'], 'filename' => $r['filename'] );
}
/**
* Whether this class can be used for retrieving an URL.
*
* @static
* @since 2.7.0
*
* @return boolean False means this class can not be used, true means it can.
*/
function test($args = array()) {
return apply_filters('use_http_extension_transport', function_exists('http_request'), $args );
}
}
/**
* HTTP request method uses Curl extension to retrieve the url.
*
@ -1341,7 +1174,7 @@ class WP_Http_Curl {
* constants.
*
* Please note that only BASIC authentication is supported by most transports.
* cURL and the PHP HTTP Extension MAY support more methods (such as NTLM authentication) depending on your environment.
* cURL MAY support more methods (such as NTLM authentication) depending on your environment.
*
* The constants are as follows:
* <ol>