<?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   = $bits['port'] ?? $port;
            $this->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 `...$args` parameter by adding it
     *              to the function signature.
     *
     * @return bool True if the request succeeded, false otherwise.
     */
    public function query( ...$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_safe_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;
    }
}