Professor6T9 Web SheLL

Windows NT WEB-23 10.0 build 17763 (Windows Server 2016) i586
Microsoft-IIS/10.0
103.118.16.173

File Name : class-wpo-webp-utils.php

<?php

if (!defined('WPO_VERSION')) die('No direct access allowed');

use \WebPConvert\Convert\ConverterFactory;

require_once WPO_PLUGIN_MAIN_PATH . 'vendor/autoload.php';

if (!class_exists('WPO_WebP_Utils')) :

class WPO_WebP_Utils {

/**
	 * Determines whether we can do webp conversion or not
	 *
	 * @return bool
	 */
	public static function can_do_webp_conversion() {
		$webp_conversion = WP_Optimize()->get_options()->get_option('webp_conversion');
		$webp_converters = WP_Optimize()->get_options()->get_option('webp_converters');
		return $webp_conversion && !empty($webp_converters);
	}

/**
	 * Convert given image file to webp format
	 *
	 * @param string $source Path of image file
	 *
	 * @return void
	 */
	public static function do_webp_conversion($source) {
		$webp_converter = new WPO_WebP_Convert();
		$webp_converter->convert($source);
	}

/**
	 * Converts an image to WebP format using a specified converter.
	 *
	 * This method acts as a wrapper for the `WebPConvert\Convert\Converters\AbstractConverter::doConvert()` method
	 * from the `webp-convert` library.
	 *
	 * @param string $converter   The converter to be used for the conversion process.
	 * @param string $source      The path to the source image file.
	 * @param string $destination The path to the destination WebP image file.
	 */
	public static function perform_webp_conversion($converter, $source, $destination) {
		$converter_instance = ConverterFactory::makeConverter(
			$converter,
			$source,
			$destination
		);

set_error_handler(array(__CLASS__, 'handle_webp_conversion_warnings'), E_WARNING); // phpcs:ignore WordPress.PHP.DevelopmentFunctions.error_log_set_error_handler -- This is needed in order to suppress PHP warnings thrown by third party library

$converter_instance->doConvert();

restore_error_handler();
	}

/**
	 * Custom error handler for handling PHP warnings during the WebP conversion process.
	 *
	 * @param int    $errno  The level of the error raised, as an integer.
	 * @param string $errstr The error message.
	 *
	 * @return bool
	 */
	public static function handle_webp_conversion_warnings($errno, $errstr) {
		$patterns = array(
			'/unlink$.+$: No such file or directory/',
			'/rename$.+$: No such file or directory/',
			'/filesize: stat failed for/',
		);

foreach ($patterns as $pattern) {
			if (preg_match($pattern, $errstr)) {
				// Suppress the warning by returning true
				return true;
			}
		}

// For other PHP warnings, use the default PHP error handler by returning false
		return false;
	}
	
	/**
	 * Decide whether the browser requesting the URL can accept webp images or not
	 *
	 * @return bool
	 */
	public static function is_browser_accepting_webp() {
		$http_accept =  TeamUpdraft\WP_Optimize\Includes\Fragments\fetch_superglobal('server', 'HTTP_ACCEPT', 'string', 'sanitize_text_field', '');
		if (false !== strpos($http_accept, 'image/webp')) {
			return true;
		}

// Link to compatibility site - https://caniuse.com/webp
		$user_agent = TeamUpdraft\WP_Optimize\Includes\Fragments\fetch_superglobal('server', 'HTTP_USER_AGENT', 'string', 'sanitize_text_field', '');
		if (empty($user_agent)) return false;

// Check Firefox version number
		if (preg_match('/Firefox\/([\d\.]+[a-z\d]*)/', $user_agent, $matches)) {
			if (version_compare('65.0.0', $matches[1], '<=')) return true;
		}

return false;
	}
}

endif;

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	0/0	0777	2025-10-15 05:40:35
..	dir	-	0/0	0777	2025-10-15 05:40:35
class-wp-optimize-webp-images.php	text/x-php	3.18 KB	0/0	0666	2025-10-15 05:40:35
class-wp-optimize-webp.php	text/x-php	15.34 KB	0/0	0666	2025-10-15 05:40:35
class-wpo-htaccess-capabilities.php	text/x-php	1.92 KB	0/0	0666	2025-10-15 05:40:35
class-wpo-webp-alter-html.php	text/x-php	4.7 KB	0/0	0666	2025-10-15 05:40:35
class-wpo-webp-convert.php	text/x-php	1.34 KB	0/0	0666	2025-10-15 05:40:35
class-wpo-webp-self-test.php	text/x-php	1.59 KB	0/0	0666	2025-10-15 05:40:35
class-wpo-webp-test-run.php	text/x-php	1.31 KB	0/0	0666	2025-10-15 05:40:35
class-wpo-webp-utils.php	text/x-php	3.31 KB	0/0	0666	2025-10-15 05:40:35

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