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<?php |
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/** |
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* @package Polylang |
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*/ |
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|
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/** |
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* A class to manage specific compatibility issue with cache plugins |
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* Tested with WP Rocket 2.10.7 |
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* |
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* @since 2.3 |
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*/ |
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class PLL_Cache_Compat { |
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/** |
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* Setups actions |
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* |
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* @since 2.3 |
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*/ |
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public function init() { |
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if ( PLL_COOKIE ) { |
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add_action( 'wp_print_footer_scripts', array( $this, 'add_cookie_script' ) ); |
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} |
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|
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// Since version 3.0.5, WP Rocket does not serve the cached page if our cookie is not set |
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if ( ! defined( 'WP_ROCKET_VERSION' ) || version_compare( WP_ROCKET_VERSION, '3.0.5', '<' ) ) { |
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add_action( 'wp', array( $this, 'do_not_cache_site_home' ) ); |
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} |
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|
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add_action( 'clean_post_cache', array( $this, 'clean_post_cache' ), 1 ); |
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} |
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|
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/** |
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* Currently all tested cache plugins don't send cookies with cached pages. |
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* This makes us impossible to know the language of the last browsed page. |
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* This functions allows to create the cookie in javascript as a workaround. |
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* |
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* @since 2.3 |
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*/ |
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public function add_cookie_script() { |
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// Embeds should not set the cookie. |
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if ( is_embed() ) { |
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return; |
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} |
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|
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$domain = ( 2 === PLL()->options['force_lang'] ) ? wp_parse_url( PLL()->links_model->home, PHP_URL_HOST ) : COOKIE_DOMAIN; |
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$samesite = ( 3 === PLL()->options['force_lang'] ) ? 'None' : 'Lax'; |
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|
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/** This filter is documented in include/cookie.php */ |
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$expiration = (int) apply_filters( 'pll_cookie_expiration', YEAR_IN_SECONDS ); |
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|
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if ( 0 !== $expiration ) { |
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$format = 'var expirationDate = new Date(); |
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expirationDate.setTime( expirationDate.getTime() + %7$d * 1000 ); |
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document.cookie = "%1$s=%2$s; expires=" + expirationDate.toUTCString() + "; path=%3$s%4$s%5$s%6$s";'; |
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} else { |
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$format = 'document.cookie = "%1$s=%2$s; path=%3$s%4$s%5$s%6$s";'; |
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} |
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|
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$js = sprintf( |
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"(function() { |
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{$format} |
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}());\n", |
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esc_js( PLL_COOKIE ), |
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esc_js( pll_current_language() ), |
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esc_js( COOKIEPATH ), |
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$domain ? '; domain=' . esc_js( $domain ) : '', |
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is_ssl() ? '; secure' : '', |
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'; SameSite=' . $samesite, |
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esc_js( $expiration ) |
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); |
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echo "<script type='text/javascript'>\n" . $js . "</script>\n"; // phpcs:ignore WordPress.Security.EscapeOutput |
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} |
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|
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/** |
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* Informs cache plugins not to cache the home in the default language |
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* When the detection of the browser preferred language is active |
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* |
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* @since 2.3 |
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*/ |
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public function do_not_cache_site_home() { |
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if ( ! defined( 'DONOTCACHEPAGE' ) && PLL()->options['browser'] && PLL()->options['hide_default'] && is_front_page() && pll_current_language() === pll_default_language() ) { |
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define( 'DONOTCACHEPAGE', true ); |
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} |
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} |
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|
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/** |
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* Allows cache plugins to clean the right post type archive cache when cleaning a post cache. |
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* |
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* @since 3.0.5 |
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* |
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* @param int $post_id Post id. |
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*/ |
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public function clean_post_cache( $post_id ) { |
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$lang = PLL()->model->post->get_language( $post_id ); |
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|
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if ( $lang ) { |
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$filter_callback = function ( $link, $post_type ) use ( $lang ) { |
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return pll_is_translated_post_type( $post_type ) && 'post' !== $post_type ? PLL()->links_model->switch_language_in_link( $link, $lang ) : $link; |
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}; |
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add_filter( 'post_type_archive_link', $filter_callback, 99, 2 ); |
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} |
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} |
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} |
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|
