| 1 |
<?php |
| 2 |
|
| 3 |
namespace passster; |
| 4 |
|
| 5 |
class PS_Rest_Handler { |
| 6 |
|
| 7 |
/** |
| 8 |
* Contains instance or null |
| 9 |
* |
| 10 |
* @var object|null |
| 11 |
*/ |
| 12 |
private static $instance = null; |
| 13 |
|
| 14 |
/** |
| 15 |
* Returns instance of PS_Rest_Handler. |
| 16 |
* |
| 17 |
* @return object |
| 18 |
*/ |
| 19 |
public static function get_instance() { |
| 20 |
|
| 21 |
if ( null === self::$instance ) { |
| 22 |
self::$instance = new self(); |
| 23 |
} |
| 24 |
|
| 25 |
return self::$instance; |
| 26 |
} |
| 27 |
|
| 28 |
/** |
| 29 |
* Constructor for PS_Rest_Handler |
| 30 |
*/ |
| 31 |
public function __construct() { |
| 32 |
add_filter( 'rest_pre_dispatch', array( $this, 'restrict_rest_access' ), 10, 3 ); |
| 33 |
add_filter( 'rest_prepare_post', array( $this, 'filter_rest_response' ), 10, 3 ); |
| 34 |
|
| 35 |
add_action( 'rest_api_init', array( $this, 'register_nonce_routes' ) ); |
| 36 |
} |
| 37 |
|
| 38 |
public function restrict_rest_access( $result, $server, $request ) { |
| 39 |
|
| 40 |
// If a previous plugin already short-circuited dispatch, |
| 41 |
// pass that result along without modification. |
| 42 |
if ( null !== $result ) { |
| 43 |
return $result; |
| 44 |
} |
| 45 |
|
| 46 |
// Allow Passster public endpoints (unlock flow must work for guests). |
| 47 |
$public_passster_paths = array( |
| 48 |
'/passster/v1/nonces', |
| 49 |
'/passster/v1/unlock', |
| 50 |
'/passster/v1/hash', |
| 51 |
'/passster/v1/captcha', |
| 52 |
'/passster/v1/logout', |
| 53 |
); |
| 54 |
if ( in_array( $request->get_route(), $public_passster_paths, true ) ) { |
| 55 |
return null; |
| 56 |
} |
| 57 |
|
| 58 |
// Check if request is coming from a frontend page builder. |
| 59 |
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' ) ) ) { |
| 60 |
return null; |
| 61 |
} |
| 62 |
|
| 63 |
// Global protection activated? |
| 64 |
$settings = get_option( 'passster' ); |
| 65 |
$protection_enabled = $settings['activate_global_protection'] ?? false; |
| 66 |
|
| 67 |
// Check if access is allowed. |
| 68 |
$valid = false; |
| 69 |
|
| 70 |
if ( ! empty( $settings['global_protection_id'] ) ) { |
| 71 |
$page_id = esc_attr( $settings['global_protection_id'] ); |
| 72 |
$atts = array( 'password' => get_post_meta( $page_id, 'passster_password', true ) ); |
| 73 |
$valid = PS_Conditional::is_valid( $atts ); |
| 74 |
} |
| 75 |
|
| 76 |
if ( $protection_enabled && ! $valid && ! current_user_can( 'manage_options' ) ) { |
| 77 |
return new \WP_Error( |
| 78 |
'rest_not_logged_in', |
| 79 |
__( 'You are not allowed to access this content. Please authenticate with a password first.', 'content-protector' ), |
| 80 |
array( 'status' => 401 ) |
| 81 |
); |
| 82 |
} |
| 83 |
|
| 84 |
return null; |
| 85 |
} |
| 86 |
|
| 87 |
/** |
| 88 |
* Filter REST API response to hide sensitive password data from unauthenticated users |
| 89 |
* |
| 90 |
* @param \WP_REST_Response $response The response object. |
| 91 |
* @param \WP_Post $post The post object. |
| 92 |
* @param \WP_REST_Request $request The request object. |
| 93 |
* @return \WP_REST_Response |
| 94 |
*/ |
| 95 |
public function filter_rest_response( $response, $post, $request ) { |
| 96 |
// Only filter for unauthenticated users or users without proper permissions |
| 97 |
if ( is_user_logged_in() && current_user_can( 'manage_options' ) ) { |
| 98 |
return $response; |
| 99 |
} |
| 100 |
|
| 101 |
// Get the response data |
| 102 |
$data = $response->get_data(); |
| 103 |
|
| 104 |
// List of sensitive meta fields that should be hidden |
| 105 |
$sensitive_fields = array( |
| 106 |
'passster_password', |
| 107 |
'passster_passwords', |
| 108 |
'passster_password_list', |
| 109 |
'passster_password_lists', |
| 110 |
); |
| 111 |
|
| 112 |
// Remove sensitive fields from meta if they exist |
| 113 |
if ( isset( $data['meta'] ) && is_array( $data['meta'] ) ) { |
| 114 |
foreach ( $sensitive_fields as $field ) { |
| 115 |
if ( isset( $data['meta'][ $field ] ) ) { |
| 116 |
unset( $data['meta'][ $field ] ); |
| 117 |
} |
| 118 |
} |
| 119 |
} |
| 120 |
|
| 121 |
if ( $post && class_exists( 'passster\PS_Category_Lock' ) && PS_Category_Lock::get_instance()->get_active_category_lock( $post->ID ) ) { |
| 122 |
if ( isset( $data['content']['rendered'] ) ) { |
| 123 |
$data['content']['rendered'] = ''; |
| 124 |
} |
| 125 |
if ( isset( $data['excerpt']['rendered'] ) ) { |
| 126 |
$data['excerpt']['rendered'] = ''; |
| 127 |
} |
| 128 |
} |
| 129 |
|
| 130 |
// Update the response data |
| 131 |
$response->set_data( $data ); |
| 132 |
|
| 133 |
return $response; |
| 134 |
} |
| 135 |
|
| 136 |
public function register_nonce_routes() { |
| 137 |
|
| 138 |
register_rest_route( |
| 139 |
'passster/v1', |
| 140 |
'/nonces', |
| 141 |
array( |
| 142 |
'methods' => 'POST', |
| 143 |
'callback' => array( $this, 'get_all_nonces' ), |
| 144 |
'permission_callback' => '__return_true', |
| 145 |
) |
| 146 |
); |
| 147 |
} |
| 148 |
public function get_all_nonces() { |
| 149 |
$user_id = wp_validate_auth_cookie( '', 'logged_in' ); |
| 150 |
|
| 151 |
if ( $user_id ) { |
| 152 |
wp_set_current_user( $user_id ); |
| 153 |
} |
| 154 |
|
| 155 |
$response = new \WP_REST_Response( |
| 156 |
array( |
| 157 |
'nonce' => wp_create_nonce( 'ps-password-nonce' ), |
| 158 |
'hash_nonce' => wp_create_nonce( 'ps-hash-nonce' ), |
| 159 |
'logout_nonce' => wp_create_nonce( 'ps-logout-nonce' ), |
| 160 |
) |
| 161 |
); |
| 162 |
|
| 163 |
// Prevent caching of nonces - they are user-session specific. |
| 164 |
$response->header( 'Cache-Control', 'no-store, no-cache, must-revalidate, max-age=0, private' ); |
| 165 |
$response->header( 'Pragma', 'no-cache' ); |
| 166 |
$response->header( 'Expires', '0' ); |
| 167 |
$response->header( 'X-LiteSpeed-Cache-Control', 'no-cache' ); |
| 168 |
$response->header( 'X-Accel-Expires', '0' ); // Nginx |
| 169 |
$response->header( 'Surrogate-Control', 'no-store' ); // Varnish/CDN |
| 170 |
|
| 171 |
return $response; |
| 172 |
} |
| 173 |
} |
| 174 |
|
