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<?php |
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|
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namespace passster; |
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|
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class PS_Rest_Handler { |
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|
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/** |
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* Contains instance or null |
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* |
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* @var object|null |
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*/ |
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private static $instance = null; |
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|
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/** |
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* Returns instance of PS_Rest_Handler. |
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* |
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* @return object |
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*/ |
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public static function get_instance() { |
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|
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if ( null === self::$instance ) { |
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self::$instance = new self(); |
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} |
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|
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return self::$instance; |
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} |
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|
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/** |
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* Constructor for PS_Rest_Handler |
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*/ |
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public function __construct() { |
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add_filter( 'rest_authentication_errors', array( $this, 'restrict_rest_access' ) ); |
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add_filter( 'rest_prepare_post', array( $this, 'filter_rest_response' ), 10, 3 ); |
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|
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add_action( 'rest_api_init', array( $this, 'register_nonce_routes' ) ); |
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} |
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|
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public function restrict_rest_access( $result ) { |
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|
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// If a previous authentication check was applied, |
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// pass that result along without modification. |
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if ( true === $result || is_wp_error( $result ) ) { |
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return $result; |
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} |
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|
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// Allow Passster public endpoints (unlock flow must work for guests). |
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$request_uri = isset( $_SERVER['REQUEST_URI'] ) ? sanitize_text_field( wp_unslash( $_SERVER['REQUEST_URI'] ) ) : ''; |
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$request_path = (string) wp_parse_url( $request_uri, PHP_URL_PATH ); |
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$rest_route_param = isset( $_GET['rest_route'] ) ? sanitize_text_field( wp_unslash( $_GET['rest_route'] ) ) : ''; |
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$public_passster_paths = array( |
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'/passster/v1/nonces', |
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'/passster/v1/unlock', |
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'/passster/v1/hash', |
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'/passster/v1/captcha', |
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'/passster/v1/logout', |
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); |
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foreach ( $public_passster_paths as $path ) { |
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if ( strpos( $request_path, $path ) !== false || strpos( $rest_route_param, $path ) !== false ) { |
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return $result; |
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} |
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} |
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|
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// Check if request is coming from a frontend page builder. |
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if ( current_user_can( 'manage_options' ) && ( is_plugin_active( 'elementor/elementor.php' ) || is_plugin_active( 'livecanvas/livecanvas-plugin-index.php' ) || is_plugin_active( 'divi-builder/divi-builder.php' ) || is_plugin_active( 'oxygen/functions.php' ) || is_plugin_active( 'pagelayer/pagelayer.php' ) ) ) { |
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return $result; |
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} |
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|
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// Global protection activated? |
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$settings = get_option( 'passster' ); |
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$protection_enabled = $settings['activate_global_protection'] ?? false; |
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|
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// Check if access is allowed. |
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$valid = false; |
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|
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if ( ! empty( $settings['global_protection_id'] ) ) { |
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$page_id = esc_attr( $settings['global_protection_id'] ); |
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$atts = array( 'password' => get_post_meta( $page_id, 'passster_password', true ) ); |
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$valid = PS_Conditional::is_valid( $atts ); |
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} |
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|
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if ( $protection_enabled && ! $valid && ! current_user_can( 'manage_options' ) ) { |
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return new \WP_Error( |
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'rest_not_logged_in', |
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__( 'You are not allowed to access this content. Please authenticate with a password first.', 'content-protector' ), |
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array( 'status' => 401 ) |
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); |
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} |
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|
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return $result; |
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} |
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|
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/** |
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* Filter REST API response to hide sensitive password data from unauthenticated users |
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* |
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* @param \WP_REST_Response $response The response object. |
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* @param \WP_Post $post The post object. |
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* @param \WP_REST_Request $request The request object. |
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* @return \WP_REST_Response |
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*/ |
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public function filter_rest_response( $response, $post, $request ) { |
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// Only filter for unauthenticated users or users without proper permissions |
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if ( is_user_logged_in() && current_user_can( 'manage_options' ) ) { |
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return $response; |
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} |
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|
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// Get the response data |
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$data = $response->get_data(); |
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|
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// List of sensitive meta fields that should be hidden |
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$sensitive_fields = array( |
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'passster_password', |
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'passster_passwords', |
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'passster_password_list', |
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'passster_password_lists', |
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); |
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|
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// Remove sensitive fields from meta if they exist |
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if ( isset( $data['meta'] ) && is_array( $data['meta'] ) ) { |
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foreach ( $sensitive_fields as $field ) { |
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if ( isset( $data['meta'][ $field ] ) ) { |
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unset( $data['meta'][ $field ] ); |
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} |
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} |
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} |
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|
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if ( $post && class_exists( 'passster\PS_Category_Lock' ) && PS_Category_Lock::get_instance()->get_active_category_lock( $post->ID ) ) { |
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if ( isset( $data['content']['rendered'] ) ) { |
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$data['content']['rendered'] = ''; |
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} |
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if ( isset( $data['excerpt']['rendered'] ) ) { |
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$data['excerpt']['rendered'] = ''; |
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} |
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} |
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|
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// Update the response data |
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$response->set_data( $data ); |
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|
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return $response; |
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} |
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|
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public function register_nonce_routes() { |
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|
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register_rest_route( |
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'passster/v1', |
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'/nonces', |
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array( |
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'methods' => 'POST', |
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'callback' => array( $this, 'get_all_nonces' ), |
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'permission_callback' => '__return_true', |
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) |
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); |
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} |
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public function get_all_nonces() { |
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$user_id = wp_validate_auth_cookie( '', 'logged_in' ); |
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|
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if ( $user_id ) { |
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wp_set_current_user( $user_id ); |
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} |
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|
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$response = new \WP_REST_Response( |
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array( |
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'nonce' => wp_create_nonce( 'ps-password-nonce' ), |
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'hash_nonce' => wp_create_nonce( 'ps-hash-nonce' ), |
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'logout_nonce' => wp_create_nonce( 'ps-logout-nonce' ), |
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) |
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); |
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|
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// Prevent caching of nonces - they are user-session specific. |
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$response->header( 'Cache-Control', 'no-store, no-cache, must-revalidate, max-age=0, private' ); |
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$response->header( 'Pragma', 'no-cache' ); |
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$response->header( 'Expires', '0' ); |
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$response->header( 'X-LiteSpeed-Cache-Control', 'no-cache' ); |
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$response->header( 'X-Accel-Expires', '0' ); // Nginx |
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$response->header( 'Surrogate-Control', 'no-store' ); // Varnish/CDN |
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|
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return $response; |
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} |
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} |
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|
