| 1 |
<?php |
| 2 |
|
| 3 |
// If this file is called directly, abort. |
| 4 |
if ( ! defined( 'WPINC' ) ) { |
| 5 |
die; |
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} |
| 7 |
|
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|
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// ------------------------------------------------------------------------ |
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// Manage cache on "init" hoot |
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// ------------------------------------------------------------------------ |
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|
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/** |
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* Do not cache page for connected editor |
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* |
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* @return void |
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*/ |
| 18 |
function wplng_init_manage_cache() { |
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if ( current_user_can( 'edit_posts' ) ) { |
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wplng_do_not_cache_page(); |
| 21 |
} |
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} |
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|
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|
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// ------------------------------------------------------------------------ |
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// Global cache functions |
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// ------------------------------------------------------------------------ |
| 28 |
|
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/** |
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* Prevent the current page from being cached |
| 31 |
* |
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* Sets HTTP no-cache headers and defines constants used by popular |
| 33 |
* WordPress caching plugins to bypass caching for the current request. |
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* |
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* @return void |
| 36 |
*/ |
| 37 |
function wplng_do_not_cache_page() { |
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|
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// Set HTTP no-cache header |
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nocache_headers(); |
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|
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// DONOTCACHEPAGE - Standard WordPress |
| 43 |
// - WP Super Cache |
| 44 |
// - W3 Total Cache |
| 45 |
// - WP Rocket |
| 46 |
if ( ! defined( 'DONOTCACHEPAGE' ) ) { |
| 47 |
define( 'DONOTCACHEPAGE', true ); |
| 48 |
} |
| 49 |
|
| 50 |
// LiteSpeed Cache |
| 51 |
if ( ! defined( 'LSCACHE_NO_CACHE' ) ) { |
| 52 |
define( 'LSCACHE_NO_CACHE', true ); |
| 53 |
} |
| 54 |
|
| 55 |
// Comet Cache |
| 56 |
if ( ! defined( 'COMET_CACHE_ALLOWED' ) ) { |
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define( 'COMET_CACHE_ALLOWED', false ); |
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} |
| 59 |
|
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// Cache Enabler |
| 61 |
if ( ! defined( 'CE_CACHE_BYPASS' ) ) { |
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define( 'CE_CACHE_BYPASS', true ); |
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} |
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|
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// WP Fastest Cache |
| 66 |
if ( ! defined( 'WPFC_NO_CACHE' ) ) { |
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define( 'WPFC_NO_CACHE', true ); |
| 68 |
} |
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|
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// Breeze (Cloudways) |
| 71 |
if ( ! defined( 'DONOTCACHEDB' ) ) { |
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define( 'DONOTCACHEDB', true ); |
| 73 |
} |
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|
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// Object cache |
| 76 |
if ( ! defined( 'DONOTCACHEOBJECT' ) ) { |
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define( 'DONOTCACHEOBJECT', true ); |
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} |
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} |
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|
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|
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/** |
| 83 |
* Clear all website caches |
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* |
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* Flushes the WordPress object cache and triggers cache clearing |
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* for all detected caching plugins and services. |
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* |
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* @return void |
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*/ |
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function wplng_clear_website_cache() { |
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|
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// WordPress Cache |
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wp_cache_flush(); |
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|
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// LiteSpeed Cache |
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if ( has_action( 'litespeed_purge_all' ) ) { |
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do_action( 'litespeed_purge_all' ); |
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} |
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|
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// WP Super Cache |
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if ( function_exists( 'wp_cache_clear_cache' ) ) { |
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wp_cache_clear_cache(); |
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} |
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|
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// W3 Total Cache |
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if ( function_exists( 'w3tc_flush_all' ) ) { |
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w3tc_flush_all(); |
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} |
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|
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// WP Fastest Cache |
| 111 |
if ( function_exists( 'wpfc_clear_all_cache' ) ) { |
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wpfc_clear_all_cache(); |
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} |
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|
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// WP Rocket |
| 116 |
if ( function_exists( 'rocket_clean_domain' ) ) { |
| 117 |
if ( did_action( 'wp_rocket_loaded' ) ) { |
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rocket_clean_domain(); |
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} else { |
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add_action( 'wp_rocket_loaded', 'rocket_clean_domain' ); |
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} |
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} |
| 123 |
|
| 124 |
// Autoptimize |
| 125 |
if ( class_exists( 'autoptimizeCache' ) |
| 126 |
&& method_exists( 'autoptimizeCache', 'clearall' ) |
| 127 |
) { |
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autoptimizeCache::clearall(); |
| 129 |
} |
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|
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// Comet Cache |
| 132 |
if ( class_exists( 'comet_cache' ) |
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&& method_exists( 'comet_cache', 'clear' ) |
| 134 |
) { |
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comet_cache::clear(); |
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} |
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|
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// Hummingbird |
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if ( has_action( 'wphb_clear_page_cache' ) ) { |
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do_action( 'wphb_clear_page_cache' ); |
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} |
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|
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// SG Optimizer (SiteGround) |
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if ( function_exists( 'sg_cachepress_purge_cache' ) ) { |
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sg_cachepress_purge_cache(); |
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} |
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|
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// Breeze (Cloudways) |
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if ( has_action( 'breeze_clear_all_cache' ) ) { |
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do_action( 'breeze_clear_all_cache' ); |
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} |
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|
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// Cache Enabler |
| 154 |
if ( class_exists( 'Cache_Enabler' ) |
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&& method_exists( 'Cache_Enabler', 'clear_total_cache' ) |
| 156 |
) { |
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Cache_Enabler::clear_total_cache(); |
| 158 |
} |
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|
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// Swift Performance |
| 161 |
if ( class_exists( 'Swift_Performance_Cache' ) |
| 162 |
&& method_exists( 'Swift_Performance_Cache', 'clear_all_cache' ) |
| 163 |
) { |
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Swift_Performance_Cache::clear_all_cache(); |
| 165 |
} |
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|
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// Nginx Helper |
| 168 |
if ( has_action( 'rt_nginx_helper_purge_all' ) ) { |
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do_action( 'rt_nginx_helper_purge_all' ); |
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} |
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|
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// WP-Optimize |
| 173 |
if ( class_exists( 'WP_Optimize' ) |
| 174 |
&& function_exists( 'wpo_cache_flush' ) |
| 175 |
) { |
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wpo_cache_flush(); |
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} |
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|
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// Kinsta Cache |
| 180 |
if ( class_exists( 'Kinsta\Cache' ) |
| 181 |
&& wp_get_environment_type() === 'production' |
| 182 |
) { |
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wp_remote_get( |
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home_url( '/?kinsta-clear-cache-all' ), |
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array( 'blocking' => false ) |
| 186 |
); |
| 187 |
} |
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|
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// Cloudflare |
| 190 |
if ( has_action( 'cloudflare_purge_everything' ) ) { |
| 191 |
do_action( 'cloudflare_purge_everything' ); |
| 192 |
} |
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} |
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|
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|
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// ------------------------------------------------------------------------ |
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// Translations cache functions |
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// ------------------------------------------------------------------------ |
| 199 |
|
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/** |
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* Clear cached translations |
| 202 |
* |
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* Deletes the translations transient and clears the website cache. |
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* |
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* @return void |
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*/ |
| 207 |
function wplng_clear_translations_cache() { |
| 208 |
delete_option( 'wplng_cached_translations' ); |
| 209 |
wplng_clear_website_cache(); |
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} |
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|
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|
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/** |
| 214 |
* Clear cached translations when a translation post is trashed or untrashed |
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* |
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* @param int $post_id The ID of the post being trashed or untrashed. |
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* @return void |
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*/ |
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function wplng_clear_translations_cache_trash_untrash( $post_id ) { |
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|
| 221 |
if ( 'wplng_translation' !== get_post_type( $post_id ) ) { |
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return; |
| 223 |
} |
| 224 |
|
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wplng_clear_translations_cache(); |
| 226 |
} |
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|
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|
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// ------------------------------------------------------------------------ |
| 230 |
// Slug cache functions |
| 231 |
// ------------------------------------------------------------------------ |
| 232 |
|
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/** |
| 234 |
* Clear cached slugs |
| 235 |
* |
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* Deletes the slugs option and clears the website cache. |
| 237 |
* |
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* @return void |
| 239 |
*/ |
| 240 |
function wplng_clear_slugs_cache() { |
| 241 |
delete_option( 'wplng_cached_slugs' ); |
| 242 |
wplng_clear_website_cache(); |
| 243 |
} |
| 244 |
|
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|
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/** |
| 247 |
* Clear cached slugs when a slug post is trashed or untrashed |
| 248 |
* |
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* @param int $post_id The ID of the post being trashed or untrashed. |
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* @return void |
| 251 |
*/ |
| 252 |
function wplng_clear_slugs_cache_trash_untrash( $post_id ) { |
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|
| 254 |
if ( 'wplng_slug' !== get_post_type( $post_id ) ) { |
| 255 |
return; |
| 256 |
} |
| 257 |
|
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wplng_clear_slugs_cache(); |
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} |
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|
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// ------------------------------------------------------------------------ |
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// wpLingua file cache functions |
| 263 |
// ------------------------------------------------------------------------ |
| 264 |
|
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/** |
| 266 |
* Write data to a cache file in the wpLingua cache directory. |
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* |
| 268 |
* Creates the cache directory structure and protection files if needed, |
| 269 |
* then writes the provided data to the specified file. |
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* |
| 271 |
* @param string $file_name Relative path to the cache file (from WPLNG_CACHE_DIR). |
| 272 |
* @param string $data Data to write to the file. |
| 273 |
* @return int|false Number of bytes written, or false on failure. |
| 274 |
*/ |
| 275 |
function wplng_put_cache_file( $file_name, $data ) { |
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|
| 277 |
// Security: prevent path traversal |
| 278 |
if ( wplng_str_contains( $file_name, '..' ) ) { |
| 279 |
return false; |
| 280 |
} |
| 281 |
|
| 282 |
// Create main wpLingua cache folder if not exist |
| 283 |
if ( ! is_dir( WPLNG_CACHE_DIR ) ) { |
| 284 |
if ( ! wp_mkdir_p( WPLNG_CACHE_DIR ) ) { |
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return false; |
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} |
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} |
| 288 |
|
| 289 |
// Create minimal protections in main folder (only once per request) |
| 290 |
static $main_protection_checked = false; |
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|
| 292 |
if ( ! $main_protection_checked ) { |
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|
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// Create .htaccess if not exists |
| 295 |
if ( ! file_exists( WPLNG_CACHE_DIR . '/.htaccess' ) ) { |
| 296 |
|
| 297 |
$htaccess = '##############################' . PHP_EOL; |
| 298 |
$htaccess .= '# File generated by wpLingua #' . PHP_EOL; |
| 299 |
$htaccess .= '##############################' . PHP_EOL; |
| 300 |
$htaccess .= PHP_EOL; |
| 301 |
$htaccess .= '# Disable files listing' . PHP_EOL; |
| 302 |
$htaccess .= 'Options -Indexes' . PHP_EOL; |
| 303 |
$htaccess .= PHP_EOL; |
| 304 |
$htaccess .= '# Deny all HTTP access to this directory' . PHP_EOL; |
| 305 |
$htaccess .= '<IfModule mod_authz_core.c>' . PHP_EOL; |
| 306 |
$htaccess .= ' Require all denied' . PHP_EOL; |
| 307 |
$htaccess .= '</IfModule>' . PHP_EOL; |
| 308 |
$htaccess .= PHP_EOL; |
| 309 |
$htaccess .= '<IfModule !mod_authz_core.c>' . PHP_EOL; |
| 310 |
$htaccess .= ' Deny from all' . PHP_EOL; |
| 311 |
$htaccess .= '</IfModule>' . PHP_EOL; |
| 312 |
|
| 313 |
file_put_contents( WPLNG_CACHE_DIR . '/.htaccess', $htaccess ); |
| 314 |
} |
| 315 |
|
| 316 |
// Create an empty index.html file in main folder |
| 317 |
wplng_create_cache_index_html( WPLNG_CACHE_DIR ); |
| 318 |
|
| 319 |
$main_protection_checked = true; |
| 320 |
} |
| 321 |
|
| 322 |
// Create the subfolder if needed |
| 323 |
$dir = dirname( WPLNG_CACHE_DIR . $file_name ); |
| 324 |
if ( ! is_dir( $dir ) ) { |
| 325 |
if ( ! wp_mkdir_p( $dir ) ) { |
| 326 |
return false; |
| 327 |
} |
| 328 |
} |
| 329 |
|
| 330 |
// Create index.html in all directories between main path and target directory |
| 331 |
wplng_create_cache_index_html_recursive( $dir ); |
| 332 |
|
| 333 |
// Write the cache file |
| 334 |
return file_put_contents( WPLNG_CACHE_DIR . $file_name, $data ); |
| 335 |
} |
| 336 |
|
| 337 |
|
| 338 |
/** |
| 339 |
* Create an empty index.html file in the specified directory. |
| 340 |
* |
| 341 |
* @param string $dir_path Absolute path to the directory. |
| 342 |
* @return bool True if file exists or was created, false on failure. |
| 343 |
*/ |
| 344 |
function wplng_create_cache_index_html( $dir_path ) { |
| 345 |
|
| 346 |
$index_file = rtrim( $dir_path, '/\\' ) . '/index.html'; |
| 347 |
|
| 348 |
if ( file_exists( $index_file ) ) { |
| 349 |
return true; |
| 350 |
} |
| 351 |
|
| 352 |
return file_put_contents( $index_file, '' ) !== false; |
| 353 |
} |
| 354 |
|
| 355 |
|
| 356 |
/** |
| 357 |
* Create index.html files in all directories from WPLNG_CACHE_DIR to the target directory. |
| 358 |
* |
| 359 |
* @param string $target_dir Absolute path to the target directory. |
| 360 |
* @return void |
| 361 |
*/ |
| 362 |
function wplng_create_cache_index_html_recursive( $target_dir ) { |
| 363 |
|
| 364 |
$target_dir = wp_normalize_path( $target_dir ); |
| 365 |
$base_path = wp_normalize_path( WPLNG_CACHE_DIR ); |
| 366 |
|
| 367 |
// Ensure target is within cache path |
| 368 |
if ( strpos( $target_dir, $base_path ) !== 0 ) { |
| 369 |
return; |
| 370 |
} |
| 371 |
|
| 372 |
// Get relative path from base |
| 373 |
$relative_path = substr( $target_dir, strlen( $base_path ) ); |
| 374 |
$relative_path = trim( $relative_path, '/' ); |
| 375 |
|
| 376 |
if ( empty( $relative_path ) ) { |
| 377 |
return; |
| 378 |
} |
| 379 |
|
| 380 |
// Build each subdirectory and create index.html |
| 381 |
$parts = explode( '/', $relative_path ); |
| 382 |
$current_path = $base_path; |
| 383 |
|
| 384 |
foreach ( $parts as $part ) { |
| 385 |
$current_path .= '/' . $part; |
| 386 |
if ( is_dir( $current_path ) ) { |
| 387 |
wplng_create_cache_index_html( $current_path ); |
| 388 |
} |
| 389 |
} |
| 390 |
} |
| 391 |
|
| 392 |
|
| 393 |
/** |
| 394 |
* Read data from a cache file in the wpLingua cache directory. |
| 395 |
* |
| 396 |
* @param string $file_name Relative path to the cache file (from WPLNG_CACHE_DIR). |
| 397 |
* @return string|false File contents, or false if file doesn't exist or isn't readable. |
| 398 |
*/ |
| 399 |
function wplng_get_cache_file( $file_name ) { |
| 400 |
|
| 401 |
// Security: prevent path traversal |
| 402 |
if ( wplng_str_contains( $file_name, '..' ) ) { |
| 403 |
return false; |
| 404 |
} |
| 405 |
|
| 406 |
$file_path = WPLNG_CACHE_DIR . $file_name; |
| 407 |
|
| 408 |
if ( ! is_readable( $file_path ) ) { |
| 409 |
return false; |
| 410 |
} |
| 411 |
|
| 412 |
return file_get_contents( $file_path ); |
| 413 |
} |
| 414 |
|
| 415 |
|
| 416 |
/** |
| 417 |
* Clear wpLingua cache folder or a specific file/directory. |
| 418 |
* |
| 419 |
* @param string|false $file Relative path to delete, or false to delete entire cache folder. |
| 420 |
* @return bool True on success, false on failure. |
| 421 |
*/ |
| 422 |
function wplng_clear_folder_cache( $file = false ) { |
| 423 |
|
| 424 |
if ( $file === false ) { |
| 425 |
$path = WPLNG_CACHE_DIR; |
| 426 |
} else { |
| 427 |
$path = wp_normalize_path( WPLNG_CACHE_DIR . $file ); |
| 428 |
|
| 429 |
// Security: ensure path is within cache directory |
| 430 |
if ( wplng_str_contains( $file, '..' ) |
| 431 |
|| ! wplng_str_starts_with( $path, wp_normalize_path( WPLNG_CACHE_DIR ) ) |
| 432 |
) { |
| 433 |
return false; |
| 434 |
} |
| 435 |
} |
| 436 |
|
| 437 |
if ( ! file_exists( $path ) ) { |
| 438 |
return true; |
| 439 |
} |
| 440 |
|
| 441 |
if ( is_file( $path ) ) { |
| 442 |
return @unlink( $path ); |
| 443 |
} |
| 444 |
|
| 445 |
return wplng_delete_directory( $path ); |
| 446 |
} |
| 447 |
|
| 448 |
|
| 449 |
/** |
| 450 |
* Clear wpLingua cache when WordPress core, plugins, themes or translations are updated. |
| 451 |
* |
| 452 |
* Hooked to: |
| 453 |
* - upgrader_process_complete (core, plugins, themes, translations updates) |
| 454 |
* - activated_plugin |
| 455 |
* - deactivated_plugin |
| 456 |
* - switch_theme |
| 457 |
* |
| 458 |
* @param mixed $upgrader_or_plugin WP_Upgrader instance or plugin slug (depends on hook). |
| 459 |
* @param array $options Array of update data (only for upgrader_process_complete). |
| 460 |
* @return void |
| 461 |
*/ |
| 462 |
function wplng_clear_cache_on_update( $upgrader_or_plugin = null, $options = array() ) { |
| 463 |
|
| 464 |
// For upgrader_process_complete hook, check update type |
| 465 |
if ( ! empty( $options ) && is_array( $options ) ) { |
| 466 |
|
| 467 |
$type = isset( $options['type'] ) ? $options['type'] : ''; |
| 468 |
|
| 469 |
// Clear cache for core, plugin, theme or translation updates |
| 470 |
if ( in_array( $type, array( 'core', 'plugin', 'theme', 'translation' ), true ) ) { |
| 471 |
wplng_clear_folder_cache(); |
| 472 |
} |
| 473 |
|
| 474 |
return; |
| 475 |
} |
| 476 |
|
| 477 |
// For other hooks (activated_plugin, deactivated_plugin, switch_theme) |
| 478 |
wplng_clear_folder_cache(); |
| 479 |
} |
| 480 |
|
| 481 |
|
| 482 |
/** |
| 483 |
* Recursively delete a directory and all its contents. |
| 484 |
* |
| 485 |
* Only deletes directories within WPLNG_CACHE_DIR for security. |
| 486 |
* |
| 487 |
* @param string $dir_path Absolute path to the directory. |
| 488 |
* @return bool True on success, false on failure. |
| 489 |
*/ |
| 490 |
function wplng_delete_directory( $dir_path ) { |
| 491 |
|
| 492 |
$dir_path = wp_normalize_path( $dir_path ); |
| 493 |
$base_path = wp_normalize_path( WPLNG_CACHE_DIR ); |
| 494 |
|
| 495 |
// Security: ensure path is within cache directory |
| 496 |
if ( strpos( $dir_path, $base_path ) !== 0 ) { |
| 497 |
return false; |
| 498 |
} |
| 499 |
|
| 500 |
if ( ! is_dir( $dir_path ) ) { |
| 501 |
return false; |
| 502 |
} |
| 503 |
|
| 504 |
$items = scandir( $dir_path ); |
| 505 |
|
| 506 |
if ( $items === false ) { |
| 507 |
return false; |
| 508 |
} |
| 509 |
|
| 510 |
foreach ( $items as $item ) { |
| 511 |
|
| 512 |
if ( $item === '.' || $item === '..' ) { |
| 513 |
continue; |
| 514 |
} |
| 515 |
|
| 516 |
$item_path = $dir_path . '/' . $item; |
| 517 |
|
| 518 |
if ( is_dir( $item_path ) ) { |
| 519 |
wplng_delete_directory( $item_path ); |
| 520 |
} else { |
| 521 |
@unlink( $item_path ); |
| 522 |
} |
| 523 |
} |
| 524 |
|
| 525 |
return @rmdir( $dir_path ); |
| 526 |
} |
| 527 |
|
