<?php
/**
* WP_HTTP_IXR_Client
*
* @package WordPress
* @since 3.1.0
*/
#[AllowDynamicProperties]
class WP_HTTP_IXR_Client extends IXR_Client {
public $scheme;
/**
* @var IXR_Error
*/
public $error;

/**
* @param string $server
* @param string|false $path
* @param int|false $port
* @param int $timeout
*/
public function __construct( $server, $path = false, $port = false, $timeout = 15 ) {
if ( ! $path ) {
// Assume we have been given a URL instead.
$bits = parse_url( $server );
$this->scheme = $bits['scheme'];
$this->server = $bits['host'];
$this->port = isset( $bits['port'] ) ? $bits['port'] : $port;
$this->path = ! empty( $bits['path'] ) ? $bits['path'] : '/';

// Make absolutely sure we have a path.
if ( ! $this->path ) {
$this->path = '/';
}

if ( ! empty( $bits['query'] ) ) {
$this->path .= '?' . $bits['query'];
}
} else {
$this->scheme = 'http';
$this->server = $server;
$this->path = $path;
$this->port = $port;
}
$this->useragent = 'The Incutio XML-RPC PHP Library';
$this->timeout = $timeout;
}

/**
* @since 3.1.0
* @since 5.5.0 Formalized the existing `...$args` parameter by adding it
* to the function signature.
*
* @return bool
*/
public function query( ...$args ) {
$method = array_shift( $args );
$request = new IXR_Request( $method, $args );
$xml = $request->getXml();

$port = $this->port ? ":$this->port" : '';
$url = $this->scheme . '://' . $this->server . $port . $this->path;
$args = array(
'headers' => array( 'Content-Type' => 'text/xml' ),
'user-agent' => $this->useragent,
'body' => $xml,
);

// Merge Custom headers ala #8145.
foreach ( $this->headers as $header => $value ) {
$args['headers'][ $header ] = $value;
}

/**
* Filters the headers collection to be sent to the XML-RPC server.
*
* @since 4.4.0
*
* @param string[] $headers Associative array of headers to be sent.
*/
$args['headers'] = apply_filters( 'wp_http_ixr_client_headers', $args['headers'] );

if ( false !== $this->timeout ) {
$args['timeout'] = $this->timeout;
}

// Now send the request.
if ( $this->debug ) {
echo '<pre class="ixr_request">' . htmlspecialchars( $xml ) . "\n</pre>\n\n";
}

$response = wp_remote_post( $url, $args );

if ( is_wp_error( $response ) ) {
$errno = $response->get_error_code();
$errorstr = $response->get_error_message();
$this->error = new IXR_Error( -32300, "transport error: $errno $errorstr" );
return false;
}

if ( 200 !== wp_remote_retrieve_response_code( $response ) ) {
$this->error = new IXR_Error( -32301, 'transport error - HTTP status code was not 200 (' . wp_remote_retrieve_response_code( $response ) . ')' );
return false;
}

if ( $this->debug ) {
echo '<pre class="ixr_response">' . htmlspecialchars( wp_remote_retrieve_body( $response ) ) . "\n</pre>\n\n";
}

// Now parse what we've got back.
$this->message = new IXR_Message( wp_remote_retrieve_body( $response ) );
if ( ! $this->message->parse() ) {
// XML error.
$this->error = new IXR_Error( -32700, 'parse error. not well formed' );
return false;
}

// Is the message a fault?
if ( 'fault' === $this->message->messageType ) {
$this->error = new IXR_Error( $this->message->faultCode, $this->message->faultString );
return false;
}

// Message must be OK.
return true;
}
}