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<?php |
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namespace WPEXtra\Modules\Common; |
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|
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if ( ! defined( 'ABSPATH' ) ) { |
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exit; |
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} |
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|
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use WPEXtra\Settings; |
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use WPEXtra\Helper; |
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use WPEXtra\Base; |
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|
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class Security extends Base { |
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|
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public function __construct() { |
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parent::__construct(); |
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} |
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|
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protected $features = [ |
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'disable_embeds', |
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'disable_xmlrpc', |
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'remove_jquery_migrate', |
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'remove_wp_version', |
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'clean_head_links', |
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'remove_wlwmanifest_link', |
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'remove_rsd_link', |
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'remove_shortlink', |
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'disable_rss_feeds', |
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'disable_self_pingbacks', |
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'block_user_enumeration', |
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'security_headers', |
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'themeplugin_edits', |
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'core_updates', |
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'http_request', |
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'disable_rest_api', |
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'remove_rest_api_links', |
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'disable_heartbeat', |
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'heartbeat_frequency', |
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'remove_blocks', |
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]; |
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|
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public function clean_head_links() { |
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$this->remove_wlwmanifest_link(); |
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$this->remove_rsd_link(); |
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$this->remove_shortlink(); |
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$this->disable_self_pingbacks(); |
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} |
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|
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public function disable_embeds() { |
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add_action('init', [$this, 'disable_embed'], 9999); |
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} |
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|
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public function disable_embed() { |
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global $wp; |
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if (isset($wp->public_query_vars) && is_array($wp->public_query_vars)) { |
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$wp->public_query_vars = array_diff($wp->public_query_vars, ['embed']); |
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} |
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add_filter('embed_oembed_discover', '__return_false'); |
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remove_action('wp_head', 'wp_oembed_add_discovery_links'); |
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remove_action('wp_head', 'wp_oembed_add_host_js'); |
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remove_filter('oembed_dataparse', 'wp_filter_oembed_result', 10); |
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remove_filter('pre_oembed_result', 'wp_filter_pre_oembed_result', 10); |
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add_filter('tiny_mce_plugins', [$this, 'disableEmbedsTinyMCE']); |
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add_filter('rewrite_rules_array', [$this, 'disableEmbedsRewrites']); |
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} |
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|
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public function disableEmbedsTinyMCE($plugins) { |
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return is_array($plugins) ? array_diff($plugins, ['wpembed']) : $plugins; |
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} |
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|
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public function disableEmbedsRewrites($rules) { |
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if (is_array($rules)) { |
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foreach ($rules as $rule => $rewrite) { |
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if (false !== strpos($rewrite, 'embed=true')) { |
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unset($rules[$rule]); |
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} |
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} |
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} |
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return $rules; |
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} |
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|
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public function disable_xmlrpc() { |
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add_filter('xmlrpc_enabled', '__return_false'); |
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add_filter('pings_open', '__return_false', 9999); |
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add_filter('pre_update_option_enable_xmlrpc', '__return_false'); |
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add_filter('pre_option_enable_xmlrpc', '__return_zero'); |
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add_filter('wp_headers', [$this, 'remove_xpingback']); |
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add_action('init', [$this, 'intercept_xmlrpc_header']); |
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} |
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|
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public function remove_xpingback($headers) { |
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unset($headers['X-Pingback'], $headers['x-pingback']); |
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return $headers; |
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} |
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|
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public function intercept_xmlrpc_header() { |
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if (!isset($_SERVER['SCRIPT_FILENAME'])) { |
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return; |
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} |
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if ('xmlrpc.php' !== basename($_SERVER['SCRIPT_FILENAME'])) { |
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return; |
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} |
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$header = 'HTTP/1.1 403 Forbidden'; |
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header($header); |
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echo esc_html($header); |
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exit; |
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} |
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|
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public function remove_jquery_migrate() { |
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add_filter('wp_default_scripts', [$this, 'jquery_migrate']); |
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} |
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|
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public function jquery_migrate(&$scripts) { |
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if (!is_admin()) { |
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$scripts->remove('jquery'); |
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$scripts->add('jquery', false, ['jquery-core']); |
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} |
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} |
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|
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public function remove_wp_version() { |
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remove_action('wp_head', 'wp_generator'); |
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add_filter('the_generator', '__return_empty_string'); |
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} |
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|
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public function remove_wlwmanifest_link() { |
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remove_action('wp_head', 'wlwmanifest_link'); |
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} |
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|
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public function remove_rsd_link() { |
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remove_action('wp_head', 'rsd_link'); |
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} |
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|
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public function remove_shortlink() { |
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remove_action('wp_head', 'wp_shortlink_wp_head'); |
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remove_action('template_redirect', 'wp_shortlink_header', 11, 0); |
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} |
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|
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public function disable_rss_feeds() { |
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add_action('template_redirect', [$this, 'rss_feed'], 1); |
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remove_action('wp_head', 'feed_links', 2); |
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remove_action('wp_head', 'feed_links_extra', 3); |
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} |
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|
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public function rss_feed() { |
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if (!is_feed() || is_404()) { |
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return; |
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} |
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if (isset($_GET['feed'])) { |
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wp_safe_redirect(esc_url_raw(remove_query_arg('feed')), 301); |
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exit; |
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} |
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if (get_query_var('feed') !== 'old') { |
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set_query_var('feed', ''); |
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} |
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redirect_canonical(); |
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wp_die(sprintf(esc_html__("No feed available, please visit the <a href='%s'>homepage</a>!", 'wp-extra'), esc_url(home_url('/')))); |
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} |
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|
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public function disable_self_pingbacks() { |
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add_action('pre_ping', [$this, 'self_pingbacks']); |
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} |
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|
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public function self_pingbacks(&$links) { |
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$home = get_option('home'); |
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foreach ($links as $l => $link) { |
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if (strpos($link, $home) === 0) { |
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unset($links[$l]); |
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} |
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} |
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} |
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|
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public function block_user_enumeration() { |
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if (!is_admin()) { |
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// Block query string ?author=N for non-logged-in visitors |
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if (isset($_REQUEST['author']) && (is_numeric($_REQUEST['author']) || '' !== $_REQUEST['author'])) { |
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wp_safe_redirect(home_url(), 301); |
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exit; |
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} |
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// Hide REST API user list from unauthorized visitors |
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add_filter('rest_endpoints', [$this, 'filter_rest_user_endpoints']); |
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} |
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} |
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|
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public function filter_rest_user_endpoints($endpoints) { |
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if (!is_user_logged_in()) { |
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if (isset($endpoints['/wp/v2/users'])) { |
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unset($endpoints['/wp/v2/users']); |
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} |
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if (isset($endpoints['/wp/v2/users/(?P<id>[\d]+)'])) { |
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unset($endpoints['/wp/v2/users/(?P<id>[\d]+)']); |
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} |
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} |
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return $endpoints; |
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} |
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|
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public function security_headers() { |
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add_filter('wp_headers', [$this, 'send_security_headers']); |
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} |
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|
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public function send_security_headers($headers) { |
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if (!is_admin()) { |
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$headers['X-Frame-Options'] = 'SAMEORIGIN'; |
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$headers['X-Content-Type-Options'] = 'nosniff'; |
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$headers['Referrer-Policy'] = 'strict-origin-when-cross-origin'; |
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$headers['Permissions-Policy'] = 'camera=(), microphone=(), geolocation=()'; |
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} |
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return $headers; |
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} |
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|
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|
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public function themeplugin_edits() { |
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add_filter('map_meta_cap', [$this, 'disable_file_editor_caps'], 10, 2); |
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if (!defined('DISALLOW_FILE_EDIT')) { |
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define('DISALLOW_FILE_EDIT', true); |
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} |
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} |
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|
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public function disable_file_editor_caps($caps, $cap) { |
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if (in_array($cap, ['edit_themes', 'edit_plugins', 'edit_files'], true)) { |
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$caps[] = 'do_not_allow'; |
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} |
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return $caps; |
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} |
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|
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public function core_updates() { |
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add_filter('auto_update_core', '__return_false'); |
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add_filter('automatic_updater_disabled', '__return_true'); |
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} |
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|
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public function http_request() { |
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add_filter('pre_http_request', [$this, 'pass_reject_request'], 10, 3); |
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} |
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|
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public function pass_reject_request($preempt, $parsed_args, $url) { |
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$value = Helper::get_option('http_request', ''); |
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$blocked_domains = array_filter(array_map('trim', explode("\n", $value))); |
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foreach ($blocked_domains as $domain) { |
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if (strpos($url, $domain) !== false) { |
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return new \WP_Error('http_request_block', esc_html__('Blocked by WP EXtra', 'wp-extra')); |
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} |
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} |
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return $preempt; |
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} |
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|
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public function disable_rest_api() { |
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add_filter('rest_authentication_errors', [$this, 'restAuthenticationErrors'], 20); |
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} |
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|
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public function restAuthenticationErrors($result) { |
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if (!empty($result)) { |
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return $result; |
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} |
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|
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$rest_route = isset($GLOBALS['wp']->query_vars['rest_route']) ? $GLOBALS['wp']->query_vars['rest_route'] : ''; |
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$exceptions = apply_filters('wpex_rest_api_exceptions', [ |
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'contact-form-7', |
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'wordfence', |
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'elementor', |
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'woocommerce', |
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'fluentform', |
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'wpforms' |
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]); |
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|
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foreach ($exceptions as $exception) { |
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if (!empty($rest_route) && strpos($rest_route, $exception) !== false) { |
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return $result; |
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} |
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} |
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|
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$disabled = false; |
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$disableOption = Helper::get_option('disable_rest_api', ''); |
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$disableOptions = is_array($disableOption) ? $disableOption : [$disableOption]; |
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|
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if (in_array('all', $disableOptions, true)) { |
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$disabled = true; |
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} elseif (in_array('non_admins', $disableOptions, true) && !current_user_can('manage_options')) { |
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$disabled = true; |
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} elseif (in_array('logged_out', $disableOptions, true) && !is_user_logged_in()) { |
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$disabled = true; |
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} |
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|
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if ($disabled) { |
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return new \WP_Error('rest_authentication_error', __('Sorry, you do not have permission to make REST API requests.', 'wp-extra'), ['status' => 401]); |
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} |
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return $result; |
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} |
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|
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public function remove_rest_api_links() { |
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remove_action('xmlrpc_rsd_apis', 'rest_output_rsd'); |
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remove_action('wp_head', 'rest_output_link_wp_head'); |
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remove_action('template_redirect', 'rest_output_link_header', 11, 0); |
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} |
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|
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public function disable_heartbeat() { |
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add_action('init', [$this, 'disableHeartbeat'], 1); |
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} |
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|
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public function disableHeartbeat() { |
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if (is_admin()) { |
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global $pagenow; |
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if (!empty($pagenow)) { |
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if ($pagenow === 'admin.php' && !empty($_GET['page'])) { |
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$exceptions = [ |
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'gf_edit_forms', |
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'gf_entries', |
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'gf_settings' |
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]; |
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if (in_array($_GET['page'], $exceptions, true)) { |
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return; |
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} |
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} |
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if ($pagenow === 'site-health.php') { |
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return; |
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} |
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} |
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} |
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$setting = Helper::get_option('disable_heartbeat'); |
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if ($setting) { |
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if ($setting === 'everywhere') { |
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$this->replaceHearbeat(); |
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} elseif ($setting === 'allow_posts') { |
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global $pagenow; |
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if ($pagenow !== 'post.php' && $pagenow !== 'post-new.php') { |
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$this->replaceHearbeat(); |
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} |
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} |
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} |
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} |
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|
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private function replaceHearbeat() { |
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wp_deregister_script('heartbeat'); |
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if (is_admin() && Helper::get_option('disable_heartbeat')) { |
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wp_register_script('heartbeat', plugins_url('/assets/js/heartbeat.min.js', WPEX_FILE)); |
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wp_enqueue_script('heartbeat', plugins_url('/assets/js/heartbeat.min.js', WPEX_FILE)); |
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} |
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} |
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|
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public function heartbeat_frequency() { |
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add_filter('heartbeat_settings', [$this, 'heartbeatFrequency']); |
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} |
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|
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public function heartbeatFrequency($settings) { |
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$freq = Helper::get_option('heartbeat_frequency'); |
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if ($freq) { |
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$settings['interval'] = intval($freq); |
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} |
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return $settings; |
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} |
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|
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public function remove_blocks() { |
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add_filter('allowed_block_types_all', [$this, 'remove_default_blocks']); |
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add_filter('allowed_block_types', [$this, 'remove_default_blocks']); |
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} |
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|
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public function remove_default_blocks($allowed_blocks) { |
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if (!class_exists('\WP_Block_Type_Registry')) { |
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return $allowed_blocks; |
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} |
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$registered_blocks = \WP_Block_Type_Registry::get_instance()->get_all_registered(); |
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$filtered_blocks = []; |
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|
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foreach ($registered_blocks as $block) { |
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if (strpos($block->name, 'core/') === false) { |
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if (!class_exists('WooCommerce') || strpos($block->name, 'woocommerce/') === false) { |
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$filtered_blocks[] = $block->name; |
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} |
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} |
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} |
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return $filtered_blocks; |
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} |
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|
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} |
