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<?php declare(strict_types=1); |
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/** |
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* It's free open-source software released under the MIT License. |
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* |
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* @author Anatoly Nekhay <[email protected]> |
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* @copyright Copyright (c) 2018, Anatoly Nekhay |
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* @license https://github.com/sunrise-php/http-message/blob/master/LICENSE |
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* @link https://github.com/sunrise-php/http-message |
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*/ |
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namespace Sunrise\Http\Message\Stream; |
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use Sunrise\Http\Message\Exception\RuntimeException; |
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use Sunrise\Http\Message\Stream; |
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use function fopen; |
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use function is_resource; |
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use function is_writable; |
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use function sys_get_temp_dir; |
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use function tempnam; |
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final class TempFileStream extends Stream |
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{ |
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/** |
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* @throws RuntimeException |
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*/ |
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public function __construct(string $prefix = '') |
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{ |
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parent::__construct(self::createFile($prefix)); |
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} |
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/** |
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* @return resource |
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* |
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* @throws RuntimeException |
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*/ |
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private static function createFile(string $prefix) |
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{ |
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$dirname = sys_get_temp_dir(); |
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if (!is_writable($dirname)) { |
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throw new RuntimeException('Temporary files directory is not writable'); |
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} |
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$filename = tempnam($dirname, $prefix); |
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if ($filename === false) { |
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throw new RuntimeException('Temporary file cannot be created'); |
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} |
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$resource = fopen($filename, 'r+b'); |
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if (!is_resource($resource)) { |
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throw new RuntimeException('Temporary file cannot be opened'); |
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} |
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return $resource; |
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} |
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} |
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