smush-fix-loop-webp-active.php

<?php
/**
 * Plugin Name: Fix re-check loop while local webp active
 * Description: Overrides the should_reoptimize method to fix WebP missing files issue.
 * Jira: SLS-6099, SMUSH-1557
 * Author: Abdoljabbar Bakhshande
 * Author URI: https://wpmudev.com
 * License: GPLv2 or later
 *
 * @package WebP_Missing_Files_Fix
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit; // Exit if accessed directly.
}

/**
 * Fix WP Smush WebP optimization issue.
 */
function fix_wp_smush_webp_optimization() {
	// Check if Smush Pro is active and its version.
	if ( ! class_exists( 'WP_Smush' ) || ( defined( 'WP_SMUSH_VERSION' ) && version_compare( WP_SMUSH_VERSION, '3.17.1', '>=' ) ) ) {
		return;
	}

	// Define the file path of the file to be modified.
	$file_path = WP_PLUGIN_DIR . '/wp-smush-pro/core/webp/class-webp-optimization.php';

	// Check if the file exists.
	if ( file_exists( $file_path ) ) {
		// Get the MD5 hash of the current file.
		$current_md5 = md5_file( $file_path );

		// Get the MD5 hash of the file during the last run.
		$old_md5 = get_option( 'wp_smush_webp_optimization_fix_md5' );

		// If the MD5 hash of the current file is different from the old one, update the file.
		if ( $current_md5 !== $old_md5 ) {
			// Get the contents of the file.
			$file_contents = file_get_contents( $file_path );

			// Check if the file contains the code to be replaced.
			if ( false !== strpos( $file_contents, 'if ( ! $this->fs->file_exists( $webp_file_path ) ) {' ) ) {
				// Replace the code using preg_replace().
				$pattern = '/if \( \! \$this->fs->file_exists\( \$webp_file_path \) \) \{\s*return true;\s*\}/s';
				$replacement = 'if ( $this->fs->file_exists( $webp_file_path ) ) {
					return false;
			}';
				$updated_contents = preg_replace( $pattern, $replacement, $file_contents );

				// Write the updated contents back to the file.
				file_put_contents( $file_path, $updated_contents );
				// Get the MD5 hash of the updated file.
				$updated_md5 = md5_file( $file_path );
				// Update the MD5 hash of the file in the database.
				update_option( 'wp_smush_webp_optimization_fix_md5', $updated_md5 );
			}
		}
	}
}
add_action( 'plugins_loaded', 'fix_wp_smush_webp_optimization' );