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| 1 | <?php |
| 2 | /** |
| 3 | * The Jetpack Helper Script Rest Controller class. |
| 4 | * Registers the REST routes. |
| 5 | * |
| 6 | * @package automattic/jetpack-transport-helper |
| 7 | */ |
| 8 | |
| 9 | // After changing this file, consider increasing the version number ("VXXX") in all the files using this namespace, in |
| 10 | // order to ensure that the specific version of this file always get loaded. Otherwise, Jetpack autoloader might decide |
| 11 | // to load an older/newer version of the class (if, for example, both the standalone and bundled versions of the plugin |
| 12 | // are installed, or in some other cases). |
| 13 | namespace Automattic\Jetpack\Transport_Helper\V0005; |
| 14 | |
| 15 | use Automattic\Jetpack\Backup\V0005\Helper_Script_Manager; |
| 16 | use Automattic\Jetpack\Connection\Rest_Authentication; |
| 17 | use WP_Error; |
| 18 | use WP_REST_Request; |
| 19 | use WP_REST_Server; |
| 20 | // phpcs:ignore WordPress.Utils.I18nTextDomainFixer.MissingArgs |
| 21 | use function esc_html__; |
| 22 | use function is_wp_error; |
| 23 | use function register_rest_route; |
| 24 | use function rest_authorization_required_code; |
| 25 | use function rest_ensure_response; |
| 26 | |
| 27 | /** |
| 28 | * Registers the REST routes. |
| 29 | */ |
| 30 | class REST_Controller { |
| 31 | /** |
| 32 | * Registers the REST routes. |
| 33 | * |
| 34 | * @access public |
| 35 | * @static |
| 36 | */ |
| 37 | public static function register_rest_routes() { |
| 38 | // Install a Helper Script to assist with fetching data. |
| 39 | register_rest_route( |
| 40 | 'jetpack/v4', |
| 41 | // This route can be generalized once we no longer depend on the backup package |
| 42 | '/backup-helper-script', |
| 43 | array( |
| 44 | 'methods' => WP_REST_Server::CREATABLE, |
| 45 | 'callback' => __CLASS__ . '::install_helper_script', |
| 46 | 'permission_callback' => __CLASS__ . '::helper_script_permissions_callback', |
| 47 | 'args' => array( |
| 48 | 'helper' => array( |
| 49 | 'description' => __( 'base64 encoded Helper Script body.', 'jetpack-transport-helper' ), |
| 50 | 'type' => 'string', |
| 51 | 'required' => true, |
| 52 | ), |
| 53 | ), |
| 54 | ) |
| 55 | ); |
| 56 | |
| 57 | // Delete a Helper Script. |
| 58 | register_rest_route( |
| 59 | 'jetpack/v4', |
| 60 | // This route can be generalized once we no longer depend on the backup package |
| 61 | '/backup-helper-script', |
| 62 | array( |
| 63 | 'methods' => WP_REST_Server::DELETABLE, |
| 64 | 'callback' => __CLASS__ . '::delete_helper_script', |
| 65 | 'permission_callback' => __CLASS__ . '::helper_script_permissions_callback', |
| 66 | 'args' => array( |
| 67 | 'path' => array( |
| 68 | 'description' => __( 'Path to Helper Script', 'jetpack-transport-helper' ), |
| 69 | 'type' => 'string', |
| 70 | 'required' => true, |
| 71 | ), |
| 72 | ), |
| 73 | ) |
| 74 | ); |
| 75 | } |
| 76 | |
| 77 | /** |
| 78 | * The Jetpack endpoints should only be available via site-level authentication. |
| 79 | * This means that the corresponding endpoints can only be accessible from WPCOM. |
| 80 | * |
| 81 | * @access public |
| 82 | * @static |
| 83 | * |
| 84 | * @return bool|WP_Error True if a blog token was used to sign the request, WP_Error otherwise. |
| 85 | */ |
| 86 | public static function helper_script_permissions_callback() { |
| 87 | if ( Rest_Authentication::is_signed_with_blog_token() ) { |
| 88 | return true; |
| 89 | } |
| 90 | |
| 91 | $error_msg = esc_html__( |
| 92 | 'You are not allowed to perform this action.', |
| 93 | 'jetpack-transport-helper' |
| 94 | ); |
| 95 | |
| 96 | return new WP_Error( 'rest_forbidden', $error_msg, array( 'status' => rest_authorization_required_code() ) ); |
| 97 | } |
| 98 | |
| 99 | /** |
| 100 | * Install the Helper Script. |
| 101 | * |
| 102 | * @access public |
| 103 | * @static |
| 104 | * |
| 105 | * @param WP_REST_Request $request The request sent to the WP REST API. |
| 106 | * |
| 107 | * @return array|WP_Error An array with installation info on success: |
| 108 | * |
| 109 | * 'path' (string) Helper script installation path on the filesystem. |
| 110 | * 'url' (string) URL to the helper script. |
| 111 | * 'abspath' (string) WordPress root. |
| 112 | * |
| 113 | * or an instance of WP_Error on failure. |
| 114 | */ |
| 115 | public static function install_helper_script( $request ) { |
| 116 | $helper_script = $request->get_param( 'helper' ); |
| 117 | |
| 118 | // phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.obfuscation_base64_decode |
| 119 | $helper_script = base64_decode( $helper_script ); |
| 120 | if ( ! $helper_script ) { |
| 121 | return new WP_Error( 'invalid_args', __( 'Helper Script body must be base64 encoded', 'jetpack-transport-helper' ), 400 ); |
| 122 | } |
| 123 | |
| 124 | $installation_info = Helper_Script_Manager::install_helper_script( $helper_script ); |
| 125 | Helper_Script_Manager::cleanup_expired_helper_scripts(); |
| 126 | |
| 127 | return rest_ensure_response( $installation_info ); |
| 128 | } |
| 129 | |
| 130 | /** |
| 131 | * Delete a Helper Script. |
| 132 | * |
| 133 | * @access public |
| 134 | * @static |
| 135 | * |
| 136 | * @param WP_REST_Request $request The request sent to the WP REST API. |
| 137 | * |
| 138 | * @return array|WP_Error An array with 'success' key indicating the result of the delete operation. |
| 139 | */ |
| 140 | public static function delete_helper_script( $request ) { |
| 141 | $path_to_helper_script = $request->get_param( 'path' ); |
| 142 | |
| 143 | $delete_result = Helper_Script_Manager::delete_helper_script( $path_to_helper_script ); |
| 144 | Helper_Script_Manager::cleanup_expired_helper_scripts(); |
| 145 | |
| 146 | if ( is_wp_error( $delete_result ) ) { |
| 147 | return $delete_result; |
| 148 | } |
| 149 | |
| 150 | return rest_ensure_response( array( 'success' => true ) ); |
| 151 | } |
| 152 | } |