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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 manage the language cookie |
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* |
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* @since 2.9 |
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*/ |
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class PLL_Cookie { |
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/** |
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* Parses the cookie parameters. |
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* |
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* @since 2.9 |
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* |
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* @param array $args {@see PLL_Cookie::set()} |
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* @return array |
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*/ |
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protected static function parse_args( $args ) { |
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/** |
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* Filters the Polylang cookie duration. |
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* |
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* If a cookie duration of 0 is specified, a session cookie will be set. |
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* If a negative cookie duration is specified, the cookie is removed. |
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* /!\ This filter may be fired *before* the theme is loaded. |
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* |
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* @since 1.8 |
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* |
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* @param int $duration Cookie duration in seconds. |
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*/ |
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$expiration = (int) apply_filters( 'pll_cookie_expiration', YEAR_IN_SECONDS ); |
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|
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$defaults = array( |
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'expires' => 0 !== $expiration ? time() + $expiration : 0, |
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'path' => COOKIEPATH, |
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'domain' => COOKIE_DOMAIN, // Cookie domain must be set to false for localhost ( default value for COOKIE_DOMAIN ) thanks to Stephen Harris. |
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'secure' => is_ssl(), |
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'httponly' => false, |
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'samesite' => 'Lax', |
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); |
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|
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return wp_parse_args( $args, $defaults ); |
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} |
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|
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/** |
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* Sets the cookie. |
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* |
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* @since 2.9 |
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* |
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* @param string $lang Language cookie value. |
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* @param array $args { |
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* Optional. Array of arguments for setting the cookie. |
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* |
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* @type string $path Cookie path, defaults to COOKIEPATH. |
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* @type string $domain Cookie domain, defaults to COOKIE_DOMAIN |
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* @type bool $secure Should the cookie be sent only over https? |
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* @type bool $httponly Should the cookie accessed only over http protocol? Defaults to false. |
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* @type string $samesite Either 'Strict', 'Lax' or 'None', defaults to 'Lax'. |
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* } |
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* @return void |
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*/ |
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public static function set( $lang, $args = array() ) { |
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$args = self::parse_args( $args ); |
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|
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if ( ! headers_sent() && PLL_COOKIE !== false && self::get() !== $lang ) { |
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if ( version_compare( PHP_VERSION, '7.3', '<' ) ) { |
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$args['path'] .= '; SameSite=' . $args['samesite']; // Hack to set SameSite value in PHP < 7.3. Doesn't work with newer versions. |
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setcookie( PLL_COOKIE, $lang, $args['expires'], $args['path'], $args['domain'], $args['secure'], $args['httponly'] ); |
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} else { |
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setcookie( PLL_COOKIE, $lang, $args ); |
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} |
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} |
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} |
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|
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/** |
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* Returns the language cookie value. |
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* |
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* @since 2.9 |
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* |
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* @return string |
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*/ |
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public static function get() { |
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return isset( $_COOKIE[ PLL_COOKIE ] ) ? sanitize_key( $_COOKIE[ PLL_COOKIE ] ) : ''; |
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} |
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} |
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|
