''}} }} // 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 |null Associative array with 'mode' and 'eagerness' keys, or null if speculative * loading is disabled. */ function wp_get_speculation_rules_configuration(): ?array { // By default, speculative loading is only enabled for sites with pretty permalinks when no user is logged in. if ( ! is_user_logged_in() && get_option( 'permalink_structure' ) ) { $config = array( 'mode' => 'auto', 'eagerness' => 'auto', ); } else { $config = null; } /** * Filters the way that speculation rules are configured. * * The Speculation Rules API is a web API that allows to automatically prefetch or prerender certain URLs on the * page, which can lead to near-instant page load times. This is also referred to as speculative loading. * * There are two aspects to the configuration: * * The "mode" (whether to "prefetch" or "prerender" URLs). * * The "eagerness" (whether to speculatively load URLs in an "eager", "moderate", or "conservative" way). * * By default, the speculation rules configuration is decided by WordPress Core ("auto"). This filter can be used * to force a certain configuration, which could for instance load URLs more or less eagerly. * * For logged-in users or for sites that are not configured to use pretty permalinks, the default value is `null`, * indicating that speculative loading is entirely disabled. * * @since 6.8.0 * @see https://developer.chrome.com/docs/web-platform/prerender-pages * * @param array|null $config Associative array with 'mode' and 'eagerness' keys, or `null`. The * default value for both of the keys is 'auto'. Other possible values * for 'mode' are 'prefetch' and 'prerender'. Other possible values for * 'eagerness' are 'eager', 'moderate', and 'conservative'. The value * `null` is used to disable speculative loading entirely. */ $config = apply_filters( 'wp_speculation_rules_configuration', $config ); // Allow the value `null` to indicate that speculative loading is disabled. if ( null === $config ) { return null; } // Sanitize the configuration and replace 'auto' with current defaults. $default_mode = 'prefetch'; $default_eagerness = 'conservative'; if ( ! is_array( $config ) ) { return array( 'mode' => $default_mode, 'eagerness' => $default_eagerness, ); } if ( ! isset( $config['mode'] ) || 'auto' === $config['mode'] || ! WP_Speculation_Rules::is_valid_mode( $config['mode'] ) ) { $config['mode'] = $default_mode; } if ( ! isset( $config['eagerness'] ) || 'auto' === $config['eagerness'] || ! WP_Speculation_Rules::is_valid_eagerness( $config['eagerness'] ) || // 'immediate' is a valid eagerness, but for safety WordPress does not allow it for document-level rules. 'immediate' === $config['eagerness'] ) { $config['eagerness'] = $default_eagerness; } return array( 'mode' => $config['mode'], 'eagerness' => $config['eagerness'], ); } /** * Returns the full speculation rules data based on the configuration. * * Plugins with features that rely on frontend URLs to exclude from prefetching or prerendering should use the * {@see 'wp_speculation_rules_href_exclude_paths'} filter to ensure those URL patterns are excluded. * * Additional speculation rules other than the default rule from WordPress Core can be provided by using the * {@see 'wp_load_speculation_rules'} action and amending the passed WP_Speculation_Rules object. * * @since 6.8.0 * @access private * * @return WP_Speculation_Rules|null Object representing the speculation rules to use, or null if speculative loading * is disabled in the current context. */ function wp_get_speculation_rules(): ?WP_Speculation_Rules { $configuration = wp_get_speculation_rules_configuration(); if ( null === $configuration ) { return null; } $mode = $configuration['mode']; $eagerness = $configuration['eagerness']; $prefixer = new WP_URL_Pattern_Prefixer(); $base_href_exclude_paths = array( $prefixer->prefix_path_pattern( '/wp-*.php', 'site' ), $prefixer->prefix_path_pattern( '/wp-admin/*', 'site' ), $prefixer->prefix_path_pattern( '/*', 'uploads' ), $prefixer->prefix_path_pattern( '/*', 'content' ), $prefixer->prefix_path_pattern( '/*', 'plugins' ), $prefixer->prefix_path_pattern( '/*', 'template' ), $prefixer->prefix_path_pattern( '/*', 'stylesheet' ), ); /* * If pretty permalinks are enabled, exclude any URLs with query parameters. * Otherwise, exclude specifically the URLs with a `_wpnonce` query parameter or any other query parameter * containing the word `nonce`. */ if ( get_option( 'permalink_structure' ) ) { $base_href_exclude_paths[] = $prefixer->prefix_path_pattern( '/*\\?(.+)', 'home' ); } else { $base_href_exclude_paths[] = $prefixer->prefix_path_pattern( '/*\\?*(^|&)*nonce*=*', 'home' ); } /** * Filters the paths for which speculative loading should be disabled. * * All paths should start in a forward slash, relative to the root document. The `*` can be used as a wildcard. * If the WordPress site is in a subdirectory, the exclude paths will automatically be prefixed as necessary. * * Note that WordPress always excludes certain path patterns such as `/wp-login.php` and `/wp-admin/*`, and those * cannot be modified using the filter. * * @since 6.8.0 * * @param string[] $href_exclude_paths Additional path patterns to disable speculative loading for. * @param string $mode Mode used to apply speculative loading. Either 'prefetch' or 'prerender'. */ $href_exclude_paths = (array) apply_filters( 'wp_speculation_rules_href_exclude_paths', array(), $mode ); // Ensure that: // 1. There are no duplicates. // 2. The base paths cannot be removed. // 3. The array has sequential keys (i.e. array_is_list()). $href_exclude_paths = array_values( array_unique( array_merge( $base_href_exclude_paths, array_map( static function ( string $href_exclude_path ) use ( $prefixer ): string { return $prefixer->prefix_path_pattern( $href_exclude_path ); }, $href_exclude_paths ) ) ) ); $speculation_rules = new WP_Speculation_Rules(); $main_rule_conditions = array( // Include any URLs within the same site. array( 'href_matches' => $prefixer->prefix_path_pattern( '/*' ), ), // Except for excluded paths. array( 'not' => array( 'href_matches' => $href_exclude_paths, ), ), // Also exclude rel=nofollow links, as certain plugins use that on their links that perform an action. array( 'not' => array( 'selector_matches' => 'a[rel~="nofollow"]', ), ), // Also exclude links that are explicitly marked to opt out, either directly or via a parent element. array( 'not' => array( 'selector_matches' => ".no-{$mode}, .no-{$mode} a", ), ), ); // If using 'prerender', also exclude links that opt out of 'prefetch' because it's part of 'prerender'. if ( 'prerender' === $mode ) { $main_rule_conditions[] = array( 'not' => array( 'selector_matches' => '.no-prefetch, .no-prefetch a', ), ); } $speculation_rules->add_rule( $mode, 'main', array( 'source' => 'document', 'where' => array( 'and' => $main_rule_conditions, ), 'eagerness' => $eagerness, ) ); /** * Fires when speculation rules data is loaded, allowing to amend the rules. * * @since 6.8.0 * * @param WP_Speculation_Rules $speculation_rules Object representing the speculation rules to use. */ do_action( 'wp_load_speculation_rules', $speculation_rules ); return $speculation_rules; } /** * Prints the speculation rules. * * For browsers that do not support speculation rules yet, the `script[type="speculationrules"]` tag will be ignored. * * @since 6.8.0 * @access private */ function wp_print_speculation_rules(): void { $speculation_rules = wp_get_speculation_rules(); if ( null === $speculation_rules ) { return; } wp_print_inline_script_tag( (string) wp_json_encode( $speculation_rules, JSON_HEX_TAG | JSON_UNESCAPED_SLASHES ), array( 'type' => 'speculationrules' ) ); }