WP_Http_Curl::request( string $url, string|array $args = array() )
Send a HTTP request to a URI using cURL extension.
Parameters
- $url
-
(Required) The request URL.
- $args
-
(Optional) Override the defaults.
Default value: array()
Return
(array|WP_Error) Array containing 'headers', 'body', 'response', 'cookies', 'filename'. A WP_Error instance upon error
Source
File: wp-includes/class-wp-http-curl.php
public function request($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-wp-http-streams.php */
$ssl_verify = apply_filters( 'https_local_ssl_verify', $ssl_verify );
} elseif ( ! $is_local ) {
/** This filter is documented in wp-includes/class-wp-http-streams.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 );
if ( $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 https://core.trac.wordpress.org/ticket/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 ( ! $this->stream_handle ) {
return new WP_Error( 'http_request_failed', sprintf(
/* translators: 1: fopen() 2: file name */
__( 'Could not open handle for %1$s to %2$s.' ),
'fopen()',
$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 WP-2.8.0
*
* @param resource $handle The cURL handle returned by curl_init() (passed by reference).
* @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;
}
Changelog
Version | Description |
---|---|
WP-2.7.0 | Introduced. |