/var/www/html_de/wp-content/plugins/elementor/modules/variables/classes/rest-api.php


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<?php

namespace Elementor\Modules\Variables\Classes;

use 
Exception;
use 
WP_Error;
use 
WP_REST_Response;
use 
WP_REST_Request;
use 
WP_REST_Server;
use 
Elementor\Plugin;
use 
Elementor\Modules\Variables\Module as Variables_Module;
use 
Elementor\Modules\Variables\Storage\Repository as Variables_Repository;
use 
Elementor\Modules\Variables\Storage\Exceptions\VariablesLimitReached;
use 
Elementor\Modules\Variables\Storage\Exceptions\RecordNotFound;
use 
Elementor\Modules\Variables\Storage\Exceptions\DuplicatedLabel;
use 
Elementor\Modules\Variables\Storage\Exceptions\BatchOperationFailed;

if ( ! 
defined'ABSPATH' ) ) {
    exit; 
// Exit if accessed directly.
}

class 
Rest_Api {
    const 
API_NAMESPACE 'elementor/v1';
    const 
API_BASE 'variables';
    const 
HTTP_OK 200;
    const 
HTTP_CREATED 201;
    const 
HTTP_BAD_REQUEST 400;
    const 
HTTP_NOT_FOUND 404;
    const 
HTTP_SERVER_ERROR 500;
    const 
MAX_ID_LENGTH 64;
    const 
MAX_LABEL_LENGTH 50;
    const 
MAX_VALUE_LENGTH 512;
    private 
Variables_Repository $variables_repository;

    public function 
__constructVariables_Repository $variables_repository ) {
        
$this->variables_repository $variables_repository;
    }

    public function 
enough_permissions_to_perform_ro_action() {
        return 
current_user_can'edit_posts' );
    }

    public function 
enough_permissions_to_perform_rw_action() {
        return 
current_user_can'manage_options' );
    }

    public function 
register_routes() {
        
register_rest_routeself::API_NAMESPACE'/' self::API_BASE '/list', [
            
'methods' => WP_REST_Server::READABLE,
            
'callback' => [ $this'get_variables' ],
            
'permission_callback' => [ $this'enough_permissions_to_perform_ro_action' ],
        ] );

        
register_rest_routeself::API_NAMESPACE'/' self::API_BASE '/create', [
            
'methods' => WP_REST_Server::CREATABLE,
            
'callback' => [ $this'create_variable' ],
            
'permission_callback' => [ $this'enough_permissions_to_perform_rw_action' ],
            
'args' => [
                
'type' => [
                    
'required' => true,
                    
'type' => 'string',
                    
'validate_callback' => [ $this'is_valid_variable_type' ],
                    
'sanitize_callback' => [ $this'trim_and_sanitize_text_field' ],
                ],
                
'label' => [
                    
'required' => true,
                    
'type' => 'string',
                    
'validate_callback' => [ $this'is_valid_variable_label' ],
                    
'sanitize_callback' => [ $this'trim_and_sanitize_text_field' ],
                ],
                
'value' => [
                    
'required' => true,
                    
'type' => 'string',
                    
'validate_callback' => [ $this'is_valid_variable_value' ],
                    
'sanitize_callback' => [ $this'trim_and_sanitize_text_field' ],
                ],
            ],
        ] );

        
register_rest_routeself::API_NAMESPACE'/' self::API_BASE '/update', [
            
'methods' => WP_REST_Server::EDITABLE,
            
'callback' => [ $this'update_variable' ],
            
'permission_callback' => [ $this'enough_permissions_to_perform_rw_action' ],
            
'args' => [
                
'id' => [
                    
'required' => true,
                    
'type' => 'string',
                    
'validate_callback' => [ $this'is_valid_variable_id' ],
                    
'sanitize_callback' => [ $this'trim_and_sanitize_text_field' ],
                ],
                
'label' => [
                    
'required' => true,
                    
'type' => 'string',
                    
'validate_callback' => [ $this'is_valid_variable_label' ],
                    
'sanitize_callback' => [ $this'trim_and_sanitize_text_field' ],
                ],
                
'value' => [
                    
'required' => true,
                    
'type' => 'string',
                    
'validate_callback' => [ $this'is_valid_variable_value' ],
                    
'sanitize_callback' => [ $this'trim_and_sanitize_text_field' ],
                ],
            ],
        ] );

        
register_rest_routeself::API_NAMESPACE'/' self::API_BASE '/delete', [
            
'methods' => WP_REST_Server::EDITABLE,
            
'callback' => [ $this'delete_variable' ],
            
'permission_callback' => [ $this'enough_permissions_to_perform_rw_action' ],
            
'args' => [
                
'id' => [
                    
'required' => true,
                    
'type' => 'string',
                    
'validate_callback' => [ $this'is_valid_variable_id' ],
                    
'sanitize_callback' => [ $this'trim_and_sanitize_text_field' ],
                ],
            ],
        ] );

        
register_rest_routeself::API_NAMESPACE'/' self::API_BASE '/restore', [
            
'methods' => WP_REST_Server::EDITABLE,
            
'callback' => [ $this'restore_variable' ],
            
'permission_callback' => [ $this'enough_permissions_to_perform_rw_action' ],
            
'args' => [
                
'id' => [
                    
'required' => true,
                    
'type' => 'string',
                    
'validate_callback' => [ $this'is_valid_variable_id' ],
                    
'sanitize_callback' => [ $this'trim_and_sanitize_text_field' ],
                ],
                
'label' => [
                    
'required' => false,
                    
'type' => 'string',
                    
'validate_callback' => [ $this'is_valid_variable_label' ],
                    
'sanitize_callback' => [ $this'trim_and_sanitize_text_field' ],
                ],
                
'value' => [
                    
'required' => false,
                    
'type' => 'string',
                    
'validate_callback' => [ $this'is_valid_variable_value' ],
                    
'sanitize_callback' => [ $this'trim_and_sanitize_text_field' ],
                ],
            ],
        ] );

        
register_rest_routeself::API_NAMESPACE'/' self::API_BASE '/batch', [
            
'methods' => WP_REST_Server::CREATABLE,
            
'callback' => [ $this'process_batch' ],
            
'permission_callback' => [ $this'enough_permissions_to_perform_rw_action' ],
            
'args' => [
                
'watermark' => [
                    
'required' => true,
                    
'type' => 'integer',
                    
'validate_callback' => [ $this'is_valid_watermark' ],
                ],
                
'operations' => [
                    
'required' => true,
                    
'type' => 'array',
                    
'validate_callback' => [ $this'is_valid_operations_array' ],
                ],
            ],
        ] );
    }

    public function 
trim_and_sanitize_text_field$value ) {
        return 
trimsanitize_text_field$value ) );
    }

    public function 
is_valid_variable_id$id ) {
        
$id trim$id );

        if ( empty( 
$id ) ) {
            return new 
WP_Error(
                
'invalid_variable_id_empty',
                
__'ID cannot be empty''elementor' )
            );
        }

        if ( 
self::MAX_ID_LENGTH strlen$id ) ) {
            return new 
WP_Error'invalid_variable_id_length'sprintf(
                
/* translators: %d: Maximum ID length. */
                
__'ID cannot exceed %d characters''elementor' ),
                
self::MAX_ID_LENGTH
            
) );
        }

        return 
true;
    }

    public function 
is_valid_variable_type$type ) {
        
$allowed_types array_keysVariables_Module::instance()->get_variable_types_registry()->all() );

        return 
in_array$type$allowed_typestrue );
    }

    public function 
is_valid_variable_label$label ) {
        
$label trim$label );

        if ( empty( 
$label ) ) {
            return new 
WP_Error(
                
'invalid_variable_label_empty',
                
__'Label cannot be empty''elementor' )
            );
        }

        if ( 
self::MAX_LABEL_LENGTH strlen$label ) ) {
            return new 
WP_Error'invalid_variable_label_length'sprintf(
                
/* translators: %d: Maximum label length. */
                
__'Label cannot exceed %d characters''elementor' ),
                
self::MAX_LABEL_LENGTH
            
) );
        }

        return 
true;
    }

    public function 
is_valid_variable_value$value ) {
        
$value trim$value );

        if ( empty( 
$value ) ) {
            return new 
WP_Error(
                
'invalid_variable_value_empty',
                
__'Value cannot be empty''elementor' )
            );
        }

        if ( 
self::MAX_VALUE_LENGTH strlen$value ) ) {
            return new 
WP_Error'invalid_variable_value_length'sprintf(
                
/* translators: %d: Maximum value length. */
                
__'Value cannot exceed %d characters''elementor' ),
                
self::MAX_VALUE_LENGTH
            
) );
        }

        return 
true;
    }

    public function 
create_variableWP_REST_Request $request ) {
        try {
            return 
$this->create_new_variable$request );
        } catch ( 
Exception $e ) {
            return 
$this->error_response$e );
        }
    }

    protected function 
clear_cache() {
        
Plugin::$instance->files_manager->clear_cache();
    }

    private function 
create_new_variableWP_REST_Request $request ) {
        
$type $request->get_param'type' );
        
$label $request->get_param'label' );
        
$value $request->get_param'value' );

        
$result $this->variables_repository->create( [
            
'type' => $type,
            
'label' => $label,
            
'value' => $value,
        ] );

        
$this->clear_cache();

        return 
$this->success_response( [
            
'variable' => $result['variable'],
            
'watermark' => $result['watermark'],
        ], 
self::HTTP_CREATED );
    }

    public function 
update_variableWP_REST_Request $request ) {
        try {
            return 
$this->update_existing_variable$request );
        } catch ( 
Exception $e ) {
            return 
$this->error_response$e );
        }
    }

    private function 
update_existing_variableWP_REST_Request $request ) {
        
$id $request->get_param'id' );
        
$label $request->get_param'label' );
        
$value $request->get_param'value' );

        
$result $this->variables_repository->update$id, [
            
'label' => $label,
            
'value' => $value,
        ] );

        
$this->clear_cache();

        return 
$this->success_response( [
            
'variable' => $result['variable'],
            
'watermark' => $result['watermark'],
        ] );
    }

    public function 
delete_variableWP_REST_Request $request ) {
        try {
            return 
$this->delete_existing_variable$request );
        } catch ( 
Exception $e ) {
            return 
$this->error_response$e );
        }
    }

    private function 
delete_existing_variableWP_REST_Request $request ) {
        
$id $request->get_param'id' );

        
$result $this->variables_repository->delete$id );

        
$this->clear_cache();

        return 
$this->success_response( [
            
'variable' => $result['variable'],
            
'watermark' => $result['watermark'],
        ] );
    }

    public function 
restore_variableWP_REST_Request $request ) {
        try {
            return 
$this->restore_existing_variable$request );
        } catch ( 
Exception $e ) {
            return 
$this->error_response$e );
        }
    }

    private function 
restore_existing_variableWP_REST_Request $request ) {
        
$id $request->get_param'id' );

        
$overrides = [];

        
$label $request->get_param'label' );

        if ( 
$label ) {
            
$overrides['label'] = $label;
        }

        
$value $request->get_param'value' );

        if ( 
$value ) {
            
$overrides['value'] = $value;
        }

        
$result $this->variables_repository->restore$id$overrides );

        
$this->clear_cache();

        return 
$this->success_response( [
            
'variable' => $result['variable'],
            
'watermark' => $result['watermark'],
        ] );
    }

    public function 
get_variables() {
        try {
            return 
$this->list_of_variables();
        } catch ( 
Exception $e ) {
            return 
$this->error_response$e );
        }
    }

    private function 
list_of_variables() {
        
$db_record $this->variables_repository->load();

        return 
$this->success_response( [
            
'variables' => $db_record['data'],
            
'total' => count$db_record['data'] ),
            
'watermark' => $db_record['watermark'],
        ] );
    }

    private function 
success_response$payload$status_code null ) {
        return new 
WP_REST_Response( [
            
'success' => true,
            
'data' => $payload,
        ], 
$status_code ?? self::HTTP_OK );
    }

    private function 
error_responseException $e ) {
        if ( 
$e instanceof VariablesLimitReached ) {
            return 
$this->prepare_error_response(
                
self::HTTP_BAD_REQUEST,
                
'invalid_variable_limit_reached',
                
__'Reached the maximum number of variables''elementor' )
            );
        }

        if ( 
$e instanceof DuplicatedLabel ) {
            return 
$this->prepare_error_response(
                
self::HTTP_BAD_REQUEST,
                
'duplicated_label',
                
__'Variable label already exists''elementor' )
            );
        }

        if ( 
$e instanceof RecordNotFound ) {
            return 
$this->prepare_error_response(
                
self::HTTP_NOT_FOUND,
                
'variable_not_found',
                
__'Variable not found''elementor' )
            );
        }

        return 
$this->prepare_error_response(
            
self::HTTP_SERVER_ERROR,
            
'unexpected_server_error',
            
__'Unexpected server error''elementor' )
        );
    }

    private function 
prepare_error_response$status_code$error$message ) {
        return new 
WP_REST_Response( [
            
'code' => $error,
            
'message' => $message,
            
'data' => [
                
'status' => $status_code,
            ],
        ], 
$status_code );
    }

    public function 
is_valid_watermark$watermark ) {
        if ( ! 
is_numeric$watermark ) || $watermark ) {
            return new 
WP_Error(
                
'invalid_watermark',
                
__'Watermark must be a non-negative integer''elementor' )
            );
        }

        return 
true;
    }

    public function 
is_valid_operations_array$operations ) {
        if ( ! 
is_array$operations ) || empty( $operations ) ) {
            return new 
WP_Error(
                
'invalid_operations_empty',
                
__'Operations array cannot be empty''elementor' )
            );
        }

        foreach ( 
$operations as $index => $operation ) {
            if ( ! 
is_array$operation ) || ! isset( $operation['type'] ) ) {
                return new 
WP_Error(
                    
'invalid_operation_structure',
                    
sprintf(
                        
/* translators: %d: operation index */
                        
__'Invalid operation structure at index %d''elementor' ),
                        
$index
                    
)
                );
            }

            
$allowed_types = [ 'create''update''delete''restore' ];

            if ( ! 
in_array$operation['type'], $allowed_typestrue ) ) {
                return new 
WP_Error(
                    
'invalid_operation_type',
                    
sprintf(
                        
/* translators: %d: operation index */
                        
__'Invalid operation type at index %d''elementor' ),
                        
$index
                    
)
                );
            }
        }

        return 
true;
    }

    public function 
process_batchWP_REST_Request $request ) {
        try {
            return 
$this->process_batch_operations$request );
        } catch ( 
Exception $e ) {
            return 
$this->batch_error_response$e );
        }
    }

    private function 
process_batch_operationsWP_REST_Request $request ) {
        
$watermark $request->get_param'watermark' );
        
$operations $request->get_param'operations' );

        
$result $this->variables_repository->process_atomic_batch$operations$watermark );

        
$this->clear_cache();

        return 
$this->success_response$result );
    }

    private function 
batch_error_responseException $e ) {
        if ( 
$e instanceof BatchOperationFailed ) {
            return new 
WP_REST_Response( [
                
'success' => false,
                
'code' => 'atomic_operation_failed',
                
'message' => __'Batch operation failed''elementor' ),
                
'data' => $e->getErrorDetails(),
            ], 
self::HTTP_BAD_REQUEST );
        }

        return 
$this->error_response$e );
    }
}