File ext-form-field-file/src/MvcCore/Ext/Forms/Validators/Files/Validations/FileAndSize.php

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<?php

/**
 * MvcCore
 *
 * This source file is subject to the BSD 3 License
 * For the full copyright and license information, please view 
 * the LICENSE.md file that are distributed with this source code.
 *
 * @copyright   Copyright (c) 2016 Tom Flidr (https://github.com/mvccore)
 * @license     https://mvccore.github.io/docs/mvccore/5.0.0/LICENCE.md
 */

namespace MvcCore\Ext\Forms\Validators\Files\Validations;

/**
 * Responsibility: 
 */
trait FileAndSize {

    /**
     * Check file by `is_uploaded_file()`, `is_file()` and by `filesize()`.
     * @param \stdClass & $file
     * @return bool|NULL
     */
    protected function validateFileAndSize (& $file) {
        if (!is_uploaded_file($file->tmpFullPath))
            return $this->handleUploadError(static::UPLOAD_ERR_NOT_POSTED);
        
        if (!is_file($file->tmpFullPath))
            return $this->handleUploadError(static::UPLOAD_ERR_NOT_FILE);
        
        $fileSize = filesize($file->tmpFullPath);
        if ($fileSize < 1)
            return $this->handleUploadError(static::UPLOAD_ERR_EMPTY_FILE);
        
        if ($fileSize === FALSE)
            return $this->handleUploadError(static::UPLOAD_ERR_TOO_LARGE_FILE);
        
        if ($this->minSize !== NULL && $fileSize < $this->minSize)
            return $this->handleUploadError(
                static::UPLOAD_ERR_MIN_SIZE, [
                    \MvcCore\Ext\Form::ConvertBytesIntoHumanForm($this->minSize)
                ]
            );
        
        if ($this->maxSize !== NULL && $fileSize > $this->maxSize)
            return $this->handleUploadError(
                static::UPLOAD_ERR_MAX_SIZE, [
                    \MvcCore\Ext\Form::ConvertBytesIntoHumanForm($this->maxSize)
                ]
            );

        $file->size = $fileSize;
        return TRUE;
    }
}

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