1 files changed, 127 insertions, 0 deletions
diff --git a/wp-includes/class-wp-http-ixr-client.php b/wp-includes/class-wp-http-ixr-client.php
new file mode 100644
index 0000000..d45ca15
--- /dev/null
+++ b/wp-includes/class-wp-http-ixr-client.php
@@ -0,0 +1,127 @@
+<?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;
+	}
+}