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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                declare(strict_types = 1);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * File: ContentValidator.php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @author Bartosz Kubicki [email protected]>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @copyright Copyright (C) 2018 Lizard Media (http://lizardmedia.pl)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace LizardMedia\ProductAttachment\Model\Attachment;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use \LizardMedia\ProductAttachment\Api\Data\AttachmentInterface;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use \Magento\Downloadable\Helper\Download;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use \Magento\Downloadable\Model\File\ContentValidator as FileContentValidator;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use \Magento\Framework\Exception\InputException;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use \Magento\Framework\Url\Validator as UrlValidator;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Class ContentValidator  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @package LizardMedia\ProductAttachment\Model\Attachment  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class ContentValidator  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @var \Magento\Downloadable\Model\File\ContentValidator  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private $fileContentValidator;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @var UrlValidator  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private $urlValidator;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param \Magento\Downloadable\Model\File\ContentValidator $fileContentValidator  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param \Magento\Framework\Url\Validator $urlValidator  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function __construct(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        FileContentValidator $fileContentValidator,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        UrlValidator $urlValidator  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->fileContentValidator = $fileContentValidator;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->urlValidator = $urlValidator;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param \LizardMedia\ProductAttachment\Api\Data\AttachmentInterface $attachment  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param bool $validateAttachmentContent  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @throws \Magento\Framework\Exception\InputException  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return bool  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function isValid(AttachmentInterface $attachment, bool $validateAttachmentContent = true) : bool  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (filter_var($attachment->getSortOrder(), FILTER_VALIDATE_INT) === false  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            || $attachment->getSortOrder() < 0) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            throw new InputException(__('Sort order must be a positive integer.')); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if ($validateAttachmentContent) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $this->validateAttachmentResource($attachment);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return true;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param \LizardMedia\ProductAttachment\Api\Data\AttachmentInterface $attachment  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @throws \Magento\Framework\Exception\InputException  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return void  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                     */  | 
            
            
                                                        
            
                                    
            
            
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                    protected function validateAttachmentResource(AttachmentInterface $attachment) : void  | 
            
            
                                                        
            
                                    
            
            
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                    { | 
            
            
                                                        
            
                                    
            
            
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                        $attachmentFile = $attachment->getAttachmentFileContent();  | 
            
            
                                                        
            
                                    
            
            
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                        if ($attachment->getAttachmentType() == Download::LINK_TYPE_FILE  | 
            
            
                                                        
            
                                    
            
            
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                            && (!$attachmentFile || !$this->fileContentValidator->isValid($attachmentFile))  | 
            
            
                                                        
            
                                    
            
            
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                        ) { | 
            
            
                                                        
            
                                    
            
            
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                            throw new InputException(__('Provided file content must be valid base64 encoded data.')); | 
            
            
                                                        
            
                                    
            
            
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                        }  | 
            
            
                                                        
            
                                    
            
            
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                        if ($attachment->getAttachmentType() == Download::LINK_TYPE_URL  | 
            
            
                                                        
            
                                    
            
            
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                            && !$this->urlValidator->isValid($attachment->getAttachmentUrl())  | 
            
            
                                                        
            
                                    
            
            
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                        ) { | 
            
            
                                                        
            
                                    
            
            
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                            throw new InputException(__('Attachment URL must have valid format.')); | 
            
            
                                                        
            
                                    
            
            
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                        }  | 
            
            
                                                        
            
                                    
            
            
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                    }  | 
            
            
                                                        
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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