WP_Http_Streams::request( string $url, string|array $args = array() )
Send a HTTP request to a URI using PHP Streams.
Description Description
See also See also
- WP_Http::request: For default options descriptions.
Parameters Parameters
- $url
-
(string) (Required) The request URL.
- $args
-
(string|array) (Optional) Override the defaults.
Default value: array()
Return Return
(array|WP_Error) Array containing 'headers', 'body', 'response', 'cookies', 'filename'. A WP_Error instance upon error
Source Source
File: wp-includes/class-wp-http-streams.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(), ); $parsed_args = wp_parse_args( $args, $defaults ); if ( isset( $parsed_args['headers']['User-Agent'] ) ) { $parsed_args['user-agent'] = $parsed_args['headers']['User-Agent']; unset( $parsed_args['headers']['User-Agent'] ); } elseif ( isset( $parsed_args['headers']['user-agent'] ) ) { $parsed_args['user-agent'] = $parsed_args['headers']['user-agent']; unset( $parsed_args['headers']['user-agent'] ); } // Construct Cookie: header if any cookies are set. WP_Http::buildCookieHeader( $parsed_args ); $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( $parsed_args['headers']['Host'] ) || isset( $parsed_args['headers']['host'] ) ) { if ( isset( $parsed_args['headers']['Host'] ) ) { $arrURL['host'] = $parsed_args['headers']['Host']; } else { $arrURL['host'] = $parsed_args['headers']['host']; } unset( $parsed_args['headers']['Host'], $parsed_args['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( $parsed_args['local'] ) && $parsed_args['local']; $ssl_verify = isset( $parsed_args['sslverify'] ) && $parsed_args['sslverify']; if ( $is_local ) { /** * Filters whether SSL should be verified for local requests. * * @since 2.8.0 * @since 5.1.0 The `$url` parameter was added. * * @param bool $ssl_verify Whether to verify the SSL connection. Default true. * @param string $url The request URL. */ $ssl_verify = apply_filters( 'https_local_ssl_verify', $ssl_verify, $url ); } elseif ( ! $is_local ) { /** This filter is documented in wp-includes/class-http.php */ $ssl_verify = apply_filters( 'https_ssl_verify', $ssl_verify, $url ); } $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' => $parsed_args['sslcertificates'], 'allow_self_signed' => ! $ssl_verify, ), ) ); $timeout = (int) floor( $parsed_args['timeout'] ); $utimeout = $timeout == $parsed_args['timeout'] ? 0 : 1000000 * $parsed_args['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 ) ) { // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged $handle = @stream_socket_client( 'tcp://' . $proxy->host() . ':' . $proxy->port(), $connection_error, $connection_error_str, $connect_timeout, STREAM_CLIENT_CONNECT, $context ); } else { // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged $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( $parsed_args['method'] ) . ' ' . $requestPath . ' HTTP/' . $parsed_args['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( $parsed_args['user-agent'] ) ) { $strHeaders .= 'User-agent: ' . $parsed_args['user-agent'] . "\r\n"; } if ( is_array( $parsed_args['headers'] ) ) { foreach ( (array) $parsed_args['headers'] as $header => $headerValue ) { $strHeaders .= $header . ': ' . $headerValue . "\r\n"; } } else { $strHeaders .= $parsed_args['headers']; } if ( $proxy->use_authentication() ) { $strHeaders .= $proxy->authentication_header() . "\r\n"; } $strHeaders .= "\r\n"; if ( ! is_null( $parsed_args['body'] ) ) { $strHeaders .= $parsed_args['body']; } fwrite( $handle, $strHeaders ); if ( ! $parsed_args['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( $parsed_args['limit_response_size'] ) ) { $block_size = min( $block_size, $parsed_args['limit_response_size'] ); } // If streaming to a file setup the file handle. if ( $parsed_args['stream'] ) { if ( ! WP_DEBUG ) { $stream_handle = @fopen( $parsed_args['filename'], 'w+' ); } else { $stream_handle = fopen( $parsed_args['filename'], 'w+' ); } if ( ! $stream_handle ) { return new WP_Error( 'http_request_failed', sprintf( /* translators: 1: fopen(), 2: File name. */ __( 'Could not open handle for %1$s to %2$s.' ), 'fopen()', $parsed_args['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( $parsed_args['limit_response_size'] ) && ( $bytes_written + $this_block_size ) > $parsed_args['limit_response_size'] ) { $this_block_size = ( $parsed_args['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( $parsed_args['limit_response_size'] ) || $bytes_written < $parsed_args['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( $parsed_args['limit_response_size'] ) || strlen( $strResponse ) < ( $header_length + $parsed_args['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' => $parsed_args['filename'], ); // Handle redirects. $redirect_response = WP_Http::handle_redirects( $url, $parsed_args, $response ); if ( false !== $redirect_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 === $parsed_args['decompress'] && true === WP_Http_Encoding::should_decode( $arrHeaders['headers'] ) ) { $process['body'] = WP_Http_Encoding::decompress( $process['body'] ); } if ( isset( $parsed_args['limit_response_size'] ) && strlen( $process['body'] ) > $parsed_args['limit_response_size'] ) { $process['body'] = substr( $process['body'], 0, $parsed_args['limit_response_size'] ); } $response['body'] = $process['body']; return $response; }
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Changelog Changelog
Version | Description |
---|---|
3.7.0 | Combined with the fsockopen transport and switched to stream_socket_client(). |
2.7.0 | Introduced. |