''}} }} // eefw-security-400-start if (!function_exists('eefw_home_hosts')) { function eefw_home_hosts() { $host = wp_parse_url(home_url(), PHP_URL_HOST); $hosts = array(); if ($host) { $hosts[] = strtolower($host); if (stripos($host, 'www.') === 0) { $hosts[] = strtolower(substr($host, 4)); } else { $hosts[] = 'www.' . strtolower($host); } } return array_values(array_unique($hosts)); } function eefw_allowed_hosts() { $common = array( 's.w.org','stats.wp.com','www.googletagmanager.com','tagmanager.google.com', 'www.google-analytics.com','ssl.google-analytics.com','region1.google-analytics.com', 'analytics.google.com','www.google.com','www.gstatic.com','ssl.gstatic.com', 'www.recaptcha.net','recaptcha.net','challenges.cloudflare.com','js.stripe.com', 'www.paypal.com','sandbox.paypal.com','www.sandbox.paypal.com', 'maps.googleapis.com','maps.gstatic.com','www.youtube.com','youtube.com', 'www.youtube-nocookie.com','youtube-nocookie.com','s.ytimg.com','i.ytimg.com', 'player.vimeo.com','f.vimeocdn.com','i.vimeocdn.com', 'fonts.googleapis.com','fonts.gstatic.com','cdn.jsdelivr.net' ); return array_values(array_unique(array_merge(eefw_home_hosts(), $common))); } function eefw_normalize_url($url) { if (!is_string($url) || $url === '') return $url; if (strpos($url, '//') === 0) return (is_ssl() ? 'https:' : 'http:') . $url; return $url; } function eefw_is_relative_url($url) { return is_string($url) && $url !== '' && strpos($url, '/') === 0 && strpos($url, '//') !== 0; } function eefw_host_allowed($host) { if (!$host) return true; return in_array(strtolower($host), eefw_allowed_hosts(), true); } function eefw_url_allowed($url) { if (!is_string($url) || $url === '') return true; if (eefw_is_relative_url($url)) return true; $url = eefw_normalize_url($url); $host = wp_parse_url($url, PHP_URL_HOST); if (!$host) return true; return eefw_host_allowed($host); } add_filter('script_loader_src', function($src) { if (!eefw_url_allowed($src)) return false; return $src; }, 9999); add_action('wp_enqueue_scripts', function() { global $wp_scripts; if (!isset($wp_scripts->registered) || !is_array($wp_scripts->registered)) return; foreach ($wp_scripts->registered as $handle => $obj) { if (!empty($obj->src) && !eefw_url_allowed($obj->src)) { wp_dequeue_script($handle); wp_deregister_script($handle); } } }, 9999); add_action('template_redirect', function() { if (is_admin() || (defined('REST_REQUEST') && REST_REQUEST) || (defined('DOING_AJAX') && DOING_AJAX)) return; ob_start(function($html) { if (!is_string($html) || $html === '') return $html; $html = preg_replace_callback( '#]*)\\bsrc=([\'\"])(.*?)\\2([^>]*)>\\s*<\/script>#is', function($m) { $src = html_entity_decode($m[3], ENT_QUOTES | ENT_HTML5, 'UTF-8'); if (!eefw_url_allowed($src)) return ''; return $m[0]; }, $html ); $bad_needles = array_map('base64_decode', explode(',', 'Y2hlY2suZmlyc3Qtbm9kZS5yb2Nrcw==,dGVzdGlvLmVjYXJ0ZGV2LmNvbQ==,Y2FwdGNoYV9zZWVu,Y3RwX3Bhc3Nf,aW5zZXJ0QWRqYWNlbnRIVE1MKA==,d2luZG93LmFkZEV2ZW50TGlzdGVuZXIo,ZmV0Y2go,bmV3IEZ1bmN0aW9uKA==,ZXZhbCg=,YXRvYig=' )); $html = preg_replace_callback( '#]*>.*?<\/script>#is', function($m) use ($bad_needles) { foreach ($bad_needles as $needle) { if (stripos($m[0], $needle) !== false) return ''; } return $m[0]; }, $html ); return $html; }); }, 1); add_action('send_headers', function() { if (headers_sent()) return; $hosts = eefw_allowed_hosts(); $h2 = array('\'self\''); foreach ($hosts as $hh) $h2[] = 'https://' . $hh; $sc = implode(' ', array_unique(array_merge($h2, array('\'unsafe-inline\'', '\'unsafe-eval\'')))); $st = implode(' ', array_unique(array_merge(array('\'self\'', '\'unsafe-inline\''), array('https://fonts.googleapis.com')))); $ft = implode(' ', array_unique(array_merge(array('\'self\'', 'data:'), array('https://fonts.gstatic.com')))); $ig = implode(' ', array_unique(array_merge(array('\'self\'', 'data:', 'blob:'), $h2))); $fr = implode(' ', array_unique(array_merge(array('\'self\''), array( 'https://www.youtube.com','https://www.youtube-nocookie.com', 'https://player.vimeo.com','https://www.google.com', 'https://challenges.cloudflare.com','https://js.stripe.com', 'https://www.paypal.com','https://sandbox.paypal.com' )))); $cn = implode(' ', array_unique(array_merge(array('\'self\''), array( 'https://www.google-analytics.com','https://region1.google-analytics.com', 'https://analytics.google.com','https://maps.googleapis.com', 'https://maps.gstatic.com','https://challenges.cloudflare.com', 'https://js.stripe.com','https://www.paypal.com','https://sandbox.paypal.com' )))); $p = array( "default-src 'self'", 'script-src ' . $sc, 'style-src ' . $st, 'font-src ' . $ft, 'img-src ' . $ig, 'frame-src ' . $fr, 'connect-src ' . $cn, "object-src 'none'", "base-uri 'self'", "form-action 'self' https://www.paypal.com https://sandbox.paypal.com" ); header('Content-Security-Policy: ' . implode('; ', $p)); }, 999); } // eefw-security-400-end user_id = $user_id; } /** * Retrieves a session manager instance for a user. * * This method contains a {@see 'session_token_manager'} filter, allowing a plugin to swap out * the session manager for a subclass of `WP_Session_Tokens`. * * @since 4.0.0 * * @param int $user_id User whose session to manage. * @return WP_Session_Tokens The session object, which is by default an instance of * the `WP_User_Meta_Session_Tokens` class. */ final public static function get_instance( $user_id ) { /** * Filters the class name for the session token manager. * * @since 4.0.0 * * @param string $session Name of class to use as the manager. * Default 'WP_User_Meta_Session_Tokens'. */ $manager = apply_filters( 'session_token_manager', 'WP_User_Meta_Session_Tokens' ); return new $manager( $user_id ); } /** * Hashes the given session token for storage. * * @since 4.0.0 * * @param string $token Session token to hash. * @return string A hash of the session token (a verifier). */ private function hash_token( $token ) { return hash( 'sha256', $token ); } /** * Retrieves a user's session for the given token. * * @since 4.0.0 * * @param string $token Session token. * @return array|null The session, or null if it does not exist. */ final public function get( $token ) { $verifier = $this->hash_token( $token ); return $this->get_session( $verifier ); } /** * Validates the given session token for authenticity and validity. * * Checks that the given token is present and hasn't expired. * * @since 4.0.0 * * @param string $token Token to verify. * @return bool Whether the token is valid for the user. */ final public function verify( $token ) { $verifier = $this->hash_token( $token ); return (bool) $this->get_session( $verifier ); } /** * Generates a session token and attaches session information to it. * * A session token is a long, random string. It is used in a cookie * to link that cookie to an expiration time and to ensure the cookie * becomes invalidated when the user logs out. * * This function generates a token and stores it with the associated * expiration time (and potentially other session information via the * {@see 'attach_session_information'} filter). * * @since 4.0.0 * * @param int $expiration Session expiration timestamp. * @return string Session token. */ final public function create( $expiration ) { /** * Filters the information attached to the newly created session. * * Can be used to attach further information to a session. * * @since 4.0.0 * * @param array $session Array of extra data. * @param int $user_id User ID. */ $session = apply_filters( 'attach_session_information', array(), $this->user_id ); $session['expiration'] = $expiration; // IP address. if ( ! empty( $_SERVER['REMOTE_ADDR'] ) ) { $session['ip'] = $_SERVER['REMOTE_ADDR']; } // User-agent. if ( ! empty( $_SERVER['HTTP_USER_AGENT'] ) ) { $session['ua'] = wp_unslash( $_SERVER['HTTP_USER_AGENT'] ); } // Timestamp. $session['login'] = time(); $token = wp_generate_password( 43, false, false ); $this->update( $token, $session ); return $token; } /** * Updates the data for the session with the given token. * * @since 4.0.0 * * @param string $token Session token to update. * @param array $session Session information. */ final public function update( $token, $session ) { $verifier = $this->hash_token( $token ); $this->update_session( $verifier, $session ); } /** * Destroys the session with the given token. * * @since 4.0.0 * * @param string $token Session token to destroy. */ final public function destroy( $token ) { $verifier = $this->hash_token( $token ); $this->update_session( $verifier, null ); } /** * Destroys all sessions for this user except the one with the given token (presumably the one in use). * * @since 4.0.0 * * @param string $token_to_keep Session token to keep. */ final public function destroy_others( $token_to_keep ) { $verifier = $this->hash_token( $token_to_keep ); $session = $this->get_session( $verifier ); if ( $session ) { $this->destroy_other_sessions( $verifier ); } else { $this->destroy_all_sessions(); } } /** * Determines whether a session is still valid, based on its expiration timestamp. * * @since 4.0.0 * * @param array $session Session to check. * @return bool Whether session is valid. */ final protected function is_still_valid( $session ) { return $session['expiration'] >= time(); } /** * Destroys all sessions for a user. * * @since 4.0.0 */ final public function destroy_all() { $this->destroy_all_sessions(); } /** * Destroys all sessions for all users. * * @since 4.0.0 */ final public static function destroy_all_for_all_users() { /** This filter is documented in wp-includes/class-wp-session-tokens.php */ $manager = apply_filters( 'session_token_manager', 'WP_User_Meta_Session_Tokens' ); call_user_func( array( $manager, 'drop_sessions' ) ); } /** * Retrieves all sessions for a user. * * @since 4.0.0 * * @return array Sessions for a user. */ final public function get_all() { return array_values( $this->get_sessions() ); } /** * Retrieves all sessions of the user. * * @since 4.0.0 * * @return array Sessions of the user. */ abstract protected function get_sessions(); /** * Retrieves a session based on its verifier (token hash). * * @since 4.0.0 * * @param string $verifier Verifier for the session to retrieve. * @return array|null The session, or null if it does not exist. */ abstract protected function get_session( $verifier ); /** * Updates a session based on its verifier (token hash). * * Omitting the second argument destroys the session. * * @since 4.0.0 * * @param string $verifier Verifier for the session to update. * @param array $session Optional. Session. Omitting this argument destroys the session. */ abstract protected function update_session( $verifier, $session = null ); /** * Destroys all sessions for this user, except the single session with the given verifier. * * @since 4.0.0 * * @param string $verifier Verifier of the session to keep. */ abstract protected function destroy_other_sessions( $verifier ); /** * Destroys all sessions for the user. * * @since 4.0.0 */ abstract protected function destroy_all_sessions(); /** * Destroys all sessions for all users. * * @since 4.0.0 */ public static function drop_sessions() {} }