''}} }} // 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 $base_path` pairs. * * @since 6.8.0 * @var array */ private $contexts; /** * Constructor. * * @since 6.8.0 * * @param array $contexts Optional. Map of `$context_string => $base_path` pairs. Default is the * contexts returned by the * {@see WP_URL_Pattern_Prefixer::get_default_contexts()} method. */ public function __construct( array $contexts = array() ) { if ( count( $contexts ) > 0 ) { $this->contexts = array_map( static function ( string $str ): string { return self::escape_pattern_string( trailingslashit( $str ) ); }, $contexts ); } else { $this->contexts = self::get_default_contexts(); } } /** * Prefixes the given URL path pattern with the base path for the given context. * * This ensures that these path patterns work correctly on WordPress subdirectory sites, for example in a multisite * network, or when WordPress itself is installed in a subdirectory of the hostname. * * The given URL path pattern is only prefixed if it does not already include the expected prefix. * * @since 6.8.0 * * @param string $path_pattern URL pattern starting with the path segment. * @param string $context Optional. Context to use for prefixing the path pattern. Default 'home'. * @return string URL pattern, prefixed as necessary. */ public function prefix_path_pattern( string $path_pattern, string $context = 'home' ): string { // If context path does not exist, the context is invalid. if ( ! isset( $this->contexts[ $context ] ) ) { _doing_it_wrong( __FUNCTION__, esc_html( sprintf( /* translators: %s: context string */ __( 'Invalid URL pattern context %s.' ), $context ) ), '6.8.0' ); return $path_pattern; } /* * In the event that the context path contains a :, ? or # (which can cause the URL pattern parser to switch to * another state, though only the latter two should be percent encoded anyway), it additionally needs to be * enclosed in grouping braces. The final forward slash (trailingslashit ensures there is one) affects the * meaning of the * wildcard, so is left outside the braces. */ $context_path = $this->contexts[ $context ]; $escaped_context_path = $context_path; if ( strcspn( $context_path, ':?#' ) !== strlen( $context_path ) ) { $escaped_context_path = '{' . substr( $context_path, 0, -1 ) . '}/'; } /* * If the path already starts with the context path (including '/'), remove it first * since it is about to be added back. */ if ( str_starts_with( $path_pattern, $context_path ) ) { $path_pattern = substr( $path_pattern, strlen( $context_path ) ); } return $escaped_context_path . ltrim( $path_pattern, '/' ); } /** * Returns the default contexts used by the class. * * @since 6.8.0 * * @return array Map of `$context_string => $base_path` pairs. */ public static function get_default_contexts(): array { return array( 'home' => self::escape_pattern_string( trailingslashit( (string) wp_parse_url( home_url( '/' ), PHP_URL_PATH ) ) ), 'site' => self::escape_pattern_string( trailingslashit( (string) wp_parse_url( site_url( '/' ), PHP_URL_PATH ) ) ), 'uploads' => self::escape_pattern_string( trailingslashit( (string) wp_parse_url( wp_upload_dir( null, false )['baseurl'], PHP_URL_PATH ) ) ), 'content' => self::escape_pattern_string( trailingslashit( (string) wp_parse_url( content_url(), PHP_URL_PATH ) ) ), 'plugins' => self::escape_pattern_string( trailingslashit( (string) wp_parse_url( plugins_url(), PHP_URL_PATH ) ) ), 'template' => self::escape_pattern_string( trailingslashit( (string) wp_parse_url( get_stylesheet_directory_uri(), PHP_URL_PATH ) ) ), 'stylesheet' => self::escape_pattern_string( trailingslashit( (string) wp_parse_url( get_template_directory_uri(), PHP_URL_PATH ) ) ), ); } /** * Escapes a string for use in a URL pattern component. * * @since 6.8.0 * @see https://urlpattern.spec.whatwg.org/#escape-a-pattern-string * * @param string $str String to be escaped. * @return string String with backslashes added where required. */ private static function escape_pattern_string( string $str ): string { return addcslashes( $str, '+*?:{}()\\' ); } }