Add timestamp to resource links in TYPO3 Flow. (Thanks to Sascha and Visay)

ResourceModificationTimeAspect.php

<?php
namespace WE\BaseBox\Aspects;

/*                                                                        *
 * This script belongs to the TYPO3 Flow package "WE.BaseBox".            *
 *                                                                        *
 * It is free software; you can redistribute it and/or modify it under    *
 * the terms of the GNU Lesser General Public License, either version 3   *
 * of the License, or (at your option) any later version.                 *
 *                                                                        *
 * The TYPO3 project - inspiring people to share!                         *
 *                                                                        */

use TYPO3\Flow\Annotations as Flow;

/**
 * @Flow\Aspect
 */
class ResourceModificationTimeAspect {

	/**
	 * @Flow\Around("method(TYPO3\Fluid\ViewHelpers\Uri\ResourceViewHelper->render())")
	 * @param \TYPO3\Flow\Aop\JoinPointInterface $joinPoint The current joinpoint
	 * @return string The result of the target method if it has not been intercepted
	 */
	public function addModificationTime(\TYPO3\Flow\Aop\JoinPointInterface $joinPoint) {
		$result = $joinPoint->getAdviceChain()->proceed($joinPoint);

		if ($joinPoint->getMethodArgument('resource') !== NULL) {
			return $result;
		}

		if (strpos($joinPoint->getMethodArgument('path'), 'resource://') === 0) {
			$resourcePath = $joinPoint->getMethodArgument('path');
		} else if ($joinPoint->getMethodArgument('package') !== NULL) {
			$resourcePath = 'resource://' . $joinPoint->getMethodArgument('package') . '/Public/' . $joinPoint->getMethodArgument('path');
		} else {
			return $result;
		}

		if (!is_dir($resourcePath)) {
			try {
				if (strpos($result, '?') === FALSE) {
					$result = $result . '?' . filemtime($resourcePath);
				} else {
					$result = $result . '&' . filemtime($resourcePath);
				}
			} catch (\Exception $e) {

			}
		}
		return $result;
	}
}