wp_xmlrpc_server::mt_publishPost( array $args )

	public function mt_publishPost( $args ) {
		$this->escape( $args );

		$post_ID  = (int) $args[0];
		$username = $args[1];
		$password = $args[2];

		if ( !$user = $this->login($username, $password) )
			return $this->error;

		/** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
		do_action( 'xmlrpc_call', 'mt.publishPost' );

		$postdata = get_post($post_ID, ARRAY_A);
		if ( ! $postdata )
			return new IXR_Error( 404, __( 'Invalid post ID.' ) );

		if ( !current_user_can('publish_posts') || !current_user_can('edit_post', $post_ID) )
			return new IXR_Error(401, __('Sorry, you are not allowed to publish this post.'));

		$postdata['post_status'] = 'publish';

		// retain old cats
		$cats = wp_get_post_categories($post_ID);
		$postdata['post_category'] = $cats;
		$this->escape($postdata);

		return wp_update_post( $postdata );
	}