Current File : /home/dopla/www/wp-content/plugins/polylang/modules/plugins/cache-compat.php
<?php
/**
* A class to manage specific compatibility issue with cache plugins
* Tested with WP Rocket 2.10.7
*
* @since 2.3
*/
class PLL_Cache_Compat {
/**
* Setups actions
*
* @since 2.3
*/
public function init() {
if ( PLL_COOKIE ) {
add_action( 'wp_print_footer_scripts', array( $this, 'add_cookie_script' ) );
}
// Since version 3.0.5, WP Rocket does not serve the cached page if our cookie is not set
if ( ! defined( 'WP_ROCKET_VERSION' ) || version_compare( WP_ROCKET_VERSION, '3.0.5', '<' ) ) {
add_action( 'wp', array( $this, 'do_not_cache_site_home' ) );
}
}
/**
* Currently all tested cache plugins don't send cookies with cached pages
* This makes us impossible know the language of the last browsed page
* This functions allows to create the cookie in javascript as a workaround
*
* @since 2.3
*/
public function add_cookie_script() {
$domain = ( 2 == PLL()->options['force_lang'] ) ? parse_url( PLL()->links_model->home, PHP_URL_HOST ) : COOKIE_DOMAIN;
$js = sprintf(
'(function() {
var expirationDate = new Date();
expirationDate.setTime( expirationDate.getTime() + %d * 1000 );
document.cookie = "%s=%s; expires=" + expirationDate.toUTCString() + "; path=%s%s";
}());',
esc_js( apply_filters( 'pll_cookie_expiration', YEAR_IN_SECONDS ) ),
esc_js( PLL_COOKIE ),
esc_js( pll_current_language() ),
esc_js( COOKIEPATH ),
$domain ? '; domain=' . esc_js( $domain ) : ''
);
echo '<script type="text/javascript">' . $js . '</script>';
}
/**
* Informs cache plugins not to cache the home in the default language
* When the detection of the browser preferred language is active
*
* @since 2.3
*/
public function do_not_cache_site_home() {
if ( ! defined( 'DONOTCACHEPAGE' ) && PLL()->options['browser'] && PLL()->options['hide_default'] && is_front_page() && pll_current_language() === pll_default_language() ) {
define( 'DONOTCACHEPAGE', true );
}
}
}
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