Automatic_Upgrader_Skin

21class Automatic_Upgrader_Skin extends WP_Upgrader_Skin {22	protected $messages = array();23 24	/**25	 * Determines whether the upgrader needs FTP/SSH details in order to connect26	 * to the filesystem.27	 *28	 * @since 3.7.029	 * @since 4.6.0 The `$context` parameter default changed from `false` to an empty string.30	 *31	 * @see request_filesystem_credentials()32	 *33	 * @param bool|WP_Error $error                        Optional. Whether the current request has failed to connect,34	 *                                                    or an error object. Default false.35	 * @param string        $context                      Optional. Full path to the directory that is tested36	 *                                                    for being writable. Default empty.37	 * @param bool          $allow_relaxed_file_ownership Optional. Whether to allow Group/World writable. Default false.38	 * @return bool True on success, false on failure.39	 */40	public function request_filesystem_credentials( $error = false, $context = '', $allow_relaxed_file_ownership = false ) {41		if ( $context ) {42			$this->options['context'] = $context;43		}44		/*45		 * TODO: Fix up request_filesystem_credentials(), or split it, to allow us to request a no-output version.46		 * This will output a credentials form in event of failure. We don't want that, so just hide with a buffer.47		 */48		ob_start();49		$result = parent::request_filesystem_credentials( $error, $context, $allow_relaxed_file_ownership );50		ob_end_clean();51		return $result;52	}53 54	/**55	 * Retrieves the upgrade messages.56	 *57	 * @since 3.7.058	 *59	 * @return string[] Messages during an upgrade.60	 */61	public function get_upgrade_messages() {62		return $this->messages;63	}64 65	/**66	 * Stores a message about the upgrade.67	 *68	 * @since 3.7.069	 * @since 5.9.0 Renamed `$data` to `$feedback` for PHP 8 named parameter support.70	 *71	 * @param string|array|WP_Error $feedback Message data.72	 * @param mixed                 ...$args  Optional text replacements.73	 */74	public function feedback( $feedback, ...$args ) {75		if ( is_wp_error( $feedback ) ) {76			$string = $feedback->get_error_message();77		} elseif ( is_array( $feedback ) ) {78			return;79		} else {80			$string = $feedback;81		}82 83		if ( ! empty( $this->upgrader->strings[ $string ] ) ) {84			$string = $this->upgrader->strings[ $string ];85		}86 87		if ( str_contains( $string, '%' ) ) {88			if ( ! empty( $args ) ) {89				$string = vsprintf( $string, $args );90			}91		}92 93		$string = trim( $string );94 95		// Only allow basic HTML in the messages, as it'll be used in emails/logs rather than direct browser output.96		$string = wp_kses(97			$string,98			array(99				'a'      => array(100					'href' => true,