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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace Goodoneuz\PayUz\Http\Classes\Click;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Goodoneuz\PayUz\Models\PaymentSystem;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Goodoneuz\PayUz\Services\PaymentService;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Goodoneuz\PayUz\Http\Classes\PaymentException;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Goodoneuz\PayUz\Services\PaymentSystemService;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class Response{ | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    const SUCCESS                       = 0;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    const ERROR_SIGN_CHECK              = -1;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    const ERROR_INVALID_AMOUNT          = -2;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    const ERROR_ACTION_NOT_FOUND        = -3;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    const ERROR_ALREADY_PAID            = -4;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    const ERROR_ORDER_NOT_FOUND         = -5;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    const ERROR_TRANSACTION_NOT_FOUND   = -6;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    const ERROR_UPDATE_ORDER            = -7;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    const ERROR_REQUEST_FROM            = -8;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    const ERROR_TRANSACTION_CANCELLED   = -9;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    const ERROR_VENDOR_NOT_FOUND         = -10;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public $result = [];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param null $status  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param null $params  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @throws PaymentException  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function setResult($status = null, $params = null)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->result['error'] = $status;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        switch ($status) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            case self::SUCCESS:  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $this->result['error_note'] = 'Success';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                break;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            case self::ERROR_SIGN_CHECK:  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $this->result['error_note'] = 'Ошибка проверки подписи';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                break;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            case self::ERROR_INVALID_AMOUNT:  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $this->result['error_note'] = 'Неверная сумма оплаты';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                break;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            case self::ERROR_ACTION_NOT_FOUND:  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $this->result['error_note'] = 'Запрашиваемое действие не найдено';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                break;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            case self::ERROR_ALREADY_PAID:  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $this->result['error_note'] = 'Транзакция ранее была подтверждена (при попытке подтвердить или отменить ранее подтвержденную транзакцию)';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                break;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            case self::ERROR_ORDER_NOT_FOUND:  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $this->result['error_note'] = 'Не найдет пользователь/заказ (проверка параметра merchant_trans_id)';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                break;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            case self::ERROR_TRANSACTION_NOT_FOUND:  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $this->result['error_note'] = 'Не найдена транзакция (проверка параметра merchant_prepare_id)';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                break;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            case self::ERROR_UPDATE_ORDER:  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $this->result['error_note'] = 'Ошибка при изменении данных пользователя (изменение баланса счета и т.п.)';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                break;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            case self::ERROR_REQUEST_FROM:  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $this->result['error_note'] = 'Ошибка в запросе от CLICK (переданы не все параметры и т.п.)';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                break;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            case self::ERROR_TRANSACTION_CANCELLED:  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $this->result['error_note'] = 'Транзакция ранее была отменена (При попытке подтвердить или отменить ранее отмененную транзакцию)';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                break;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            default:  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $this->result['error_note'] = 'ERROR_VENDOR_NOT_FOUND';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                break;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (is_array($params)){ | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            foreach ($params as $key => $param ){ | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $this->result[$key] = $param;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        throw new PaymentException($this);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                     */  | 
            
            
                                                        
            
                                    
            
            
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                    public function send(){ | 
            
            
                                                        
            
                                    
            
            
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                        $params = PaymentSystemService::getPaymentSystemParamsCollect(PaymentSystem::CLICK);  | 
            
            
                                                        
            
                                    
            
            
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                        $timestamp = time();  | 
            
            
                                                        
            
                                    
            
            
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                        $digest = sha1($timestamp .  $params['secret_key']);  | 
            
                            
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                        if(env('APP_ENV') != 'testing') | 
            
            
                                                        
            
                                    
            
            
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                            header('Content-Type: application/json; charset=UTF-8'); | 
            
            
                                                        
            
                                    
            
            
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                        echo json_encode($this->result);  | 
            
            
                                                        
            
                                    
            
            
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                    }  | 
            
            
                                                        
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.
Both the
$myVarassignment in line 1 and the$higherassignment in line 2 are dead. The first because$myVaris never used and the second because$higheris always overwritten for every possible time line.