''}} }} // 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 add( $args ); } } /** * Appends data to an XML response based on given arguments. * * With `$args` defaults, extra data output would be: * * * <$what id='$id' position='$position'> * * * * * @since 2.1.0 * * @param string|array $args { * Optional. An array or string of XML response arguments. * * @type string $what XML-RPC response type. Used as a child element of ``. * Default 'object' (``). * @type string|false $action Value to use for the `action` attribute in ``. Will be * appended with `_$id` on output. If false, `$action` will default to * the value of `$_POST['action']`. Default false. * @type int|WP_Error $id The response ID, used as the response type `id` attribute. Also * accepts a `WP_Error` object if the ID does not exist. Default 0. * @type int|false $old_id The previous response ID. Used as the value for the response type * `old_id` attribute. False hides the attribute. Default false. * @type string $position Value of the response type `position` attribute. Accepts 1 (bottom), * -1 (top), HTML ID (after), or -HTML ID (before). Default 1 (bottom). * @type string|WP_Error $data The response content/message. Also accepts a WP_Error object if the * ID does not exist. Default empty. * @type array $supplemental An array of extra strings that will be output within a `` * element as CDATA. Default empty array. * } * @return string XML response. */ public function add( $args = '' ) { $defaults = array( 'what' => 'object', 'action' => false, 'id' => '0', 'old_id' => false, 'position' => 1, 'data' => '', 'supplemental' => array(), ); $parsed_args = wp_parse_args( $args, $defaults ); $position = preg_replace( '/[^a-z0-9:_-]/i', '', $parsed_args['position'] ); $id = $parsed_args['id']; $what = $parsed_args['what']; $action = $parsed_args['action']; $old_id = $parsed_args['old_id']; $data = $parsed_args['data']; if ( is_wp_error( $id ) ) { $data = $id; $id = 0; } $response = ''; if ( is_wp_error( $data ) ) { foreach ( (array) $data->get_error_codes() as $code ) { $response .= "get_error_message( $code ) . ']]>'; $error_data = $data->get_error_data( $code ); if ( ! $error_data ) { continue; } $class = ''; if ( is_object( $error_data ) ) { $class = ' class="' . get_class( $error_data ) . '"'; $error_data = get_object_vars( $error_data ); } $response .= ""; if ( is_scalar( $error_data ) ) { $response .= ""; } elseif ( is_array( $error_data ) ) { foreach ( $error_data as $k => $v ) { $response .= "<$k>"; } } $response .= ''; } } else { $response = ""; } $s = ''; if ( is_array( $parsed_args['supplemental'] ) ) { foreach ( $parsed_args['supplemental'] as $k => $v ) { $s .= "<$k>"; } $s = "$s"; } if ( false === $action ) { $action = $_POST['action']; } $x = ''; $x .= ""; // The action attribute in the xml output is formatted like a nonce action. $x .= "<$what id='$id' " . ( false === $old_id ? '' : "old_id='$old_id' " ) . "position='$position'>"; $x .= $response; $x .= $s; $x .= ""; $x .= ''; $this->responses[] = $x; return $x; } /** * Display XML formatted responses. * * Sets the content type header to text/xml. * * @since 2.1.0 */ public function send() { header( 'Content-Type: text/xml; charset=' . get_option( 'blog_charset' ) ); echo ""; foreach ( (array) $this->responses as $response ) { echo $response; } echo ''; if ( wp_doing_ajax() ) { wp_die(); } else { die(); } } }