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<?php /** * Copyright © 2019-2025 Rhubarb Tech Inc. All Rights Reserved. * * The Object Cache Pro Software and its related materials are property and confidential * information of Rhubarb Tech Inc. Any reproduction, use, distribution, or exploitation * of the Object Cache Pro Software and its related materials, in whole or in part, * is strictly forbidden unless prior permission is obtained from Rhubarb Tech Inc. * * In addition, any reproduction, use, distribution, or exploitation of the Object Cache Pro * Software and its related materials, in whole or in part, is subject to the End-User License * Agreement accessible in the included `LICENSE` file, or at: https://objectcache.pro/eula / declare(strict_types=1); namespace RedisCachePro\Plugin; use Throwable; /* * @mixin \RedisCachePro\Plugin / trait Dropin { /* * Boot dropin component. * * @return void / public function bootDropin() { add_action('file_mod_allowed', [$this, 'applyFileModFilters'], 10, 2); add_action('upgrader_process_complete', [$this, 'maybeUpdateDropin'], 10, 2); // prevent server-timing drop-in hijack add_filter('perflab_disable_object_cache_dropin', '__return_true'); } /* * Returns true if the object cache is disabled via constant or environment variable. * * @return bool / public function isDisabled() { if (! empty(getenv('WP_REDIS_DISABLED'))) { return true; } return defined('\WP_REDIS_DISABLED') && \WP_REDIS_DISABLED; } /* * Adds shortcut filters to core's `file_mod_allowed` filter. * * @param bool $file_mod_allowed * @param string $context * @return bool / public function applyFileModFilters($file_mod_allowed, $context) { if ($context === 'object_cache_dropin') { /* * Filters whether drop-in file modifications are allowed. * * @param bool $dropin_mod_allowed Whether drop-in modifications are allowed. / return (bool) apply_filters('objectcache_allow_dropin_mod', $file_mod_allowed); } return $file_mod_allowed; } /* * Attempt to enable the object cache drop-in. * * @return bool / public function enableDropin() { global $wp_filesystem; if (! \WP_Filesystem()) { return false; } $dropin = \WP_CONTENT_DIR . '/object-cache.php'; $stub = "{$this->directory}/stubs/object-cache.php"; $result = $wp_filesystem->copy($stub, $dropin, true, FS_CHMOD_FILE); if (function_exists('wp_opcache_invalidate')) { wp_opcache_invalidate($dropin, true); } /* * Filters whether to automatically flush the object after enabling the drop-in. * * @param bool $autoflush Whether to auto-flush the object cache. Default true. / if ((bool) apply_filters('objectcache_autoflush', true)) { $this->resetCache(); } /* * Filters whether to delete transients from the database after enabling the drop-in. * * @param bool $delete Whether to delete the transients. Default true. / if ((bool) apply_filters('objectcache_cleanup_transients', true)) { add_action('shutdown', [$this, 'deleteTransients']); } return $result; } /* * Attempt to disable the object cache drop-in. * * @return bool / public function disableDropin() { global $wp_filesystem; if (! wp_is_file_mod_allowed('object_cache_dropin')) { return false; } if (! \WP_Filesystem()) { return false; } $dropin = \WP_CONTENT_DIR . '/object-cache.php'; if (! $wp_filesystem->exists($dropin)) { return false; } $result = $wp_filesystem->delete($dropin); if (function_exists('wp_opcache_invalidate')) { wp_opcache_invalidate($dropin, true); } /* * Filters whether to automatically flush the object after disabling the drop-in. * * @param bool $autoflush Whether to auto-flush the object cache. Default true. / if ((bool) apply_filters('objectcache_autoflush', true)) { $this->resetCache(); } return $result; } /* * Attempt to update the object cache drop-in. * * @return bool / public function updateDropin() { global $wp_filesystem; if (! \WP_Filesystem()) { return false; } $dropin = \WP_CONTENT_DIR . '/object-cache.php'; $stub = "{$this->directory}/stubs/object-cache.php"; $result = $wp_filesystem->copy($stub, $dropin, true, FS_CHMOD_FILE); if (function_exists('wp_opcache_invalidate')) { wp_opcache_invalidate($dropin, true); } return $result; } /* * Update the object cache drop-in, if it's outdated. * * @param \WP_Upgrader $upgrader * @param array<string, mixed> $options * @return bool\|void / public function maybeUpdateDropin($upgrader, $options) { $this->verifyDropin(); if (! wp_is_file_mod_allowed('object_cache_dropin')) { return; } if ($options['action'] !== 'update' \|\| $options['type'] !== 'plugin') { return; } if (! in_array($this->basename, $options['plugins'] ?? [])) { return; } $diagnostics = $this->diagnostics(); if (! $diagnostics->dropinExists() \|\| ! $diagnostics->dropinIsValid()) { return; } if ($diagnostics->dropinIsUpToDate()) { return; } return $this->updateDropin(); } /* * Verifies the object cache drop-in. * * @return void / public function verifyDropin() { if (! $this->license()->isValid()) { $this->disableDropin(); } } /* * Initializes and connects the WordPress Filesystem Abstraction classes. * * @return \WP_Filesystem_Base */ protected function wpFilesystem() { global $wp_filesystem; try { require_once \ABSPATH . 'wp-admin/includes/plugin.php'; } catch (Throwable $th) { // } if (! \WP_Filesystem()) { try { require_once \ABSPATH . 'wp-admin/includes/class-wp-filesystem-base.php'; require_once \ABSPATH . 'wp-admin/includes/class-wp-filesystem-direct.php'; } catch (Throwable $th) { // } return new \WP_Filesystem_Direct(null); } return $wp_filesystem; } }

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