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<?php |
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/* |
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* This file is part of the Shieldon package. |
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* |
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* (c) Terry L. <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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declare(strict_types=1); |
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namespace Shieldon\Psr17; |
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use Psr\Http\Message\StreamInterface; |
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use Psr\Http\Message\StreamFactoryInterface; |
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use Shieldon\Psr7\Stream; |
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use InvalidArgumentException; |
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use RuntimeException; |
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use function fopen; |
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use function fwrite; |
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use function is_resource; |
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use function preg_match; |
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use function rewind; |
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/** |
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* PSR-17 Stream Factory |
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*/ |
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class StreamFactory implements StreamFactoryInterface |
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{ |
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/** |
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* {@inheritdoc} |
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*/ |
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public function createStream(string $content = ''): StreamInterface |
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{ |
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$resource = @fopen('php://temp', 'r+'); |
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$this->assertResource($resource); |
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fwrite($resource, $content); |
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rewind($resource); |
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return $this->createStreamFromResource($resource); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function createStreamFromFile(string $filename, string $mode = 'r'): StreamInterface |
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{ |
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if ($mode === '' || ! preg_match('/^[rwaxce]{1}[bt]{0,1}[+]{0,1}+$/', $mode)) { |
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throw new InvalidArgumentException( |
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sprintf( |
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'Invalid file opening mode "%s"', |
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$mode |
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) |
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); |
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} |
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$resource = @fopen($filename, $mode); |
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if (! is_resource($resource)) { |
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throw new RuntimeException( |
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sprintf( |
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'Unable to open file at "%s"', |
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$filename |
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) |
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); |
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} |
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return new Stream($resource); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function createStreamFromResource($resource): StreamInterface |
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{ |
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if (! is_resource($resource)) { |
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$resource = @fopen('php://temp', 'r+'); |
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} |
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$this->assertResource($resource); |
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return new Stream($resource); |
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} |
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/** |
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* Throw an exception if input is not a valid PHP resource. |
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* |
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* @param mixed $resource |
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* |
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* @return void |
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*/ |
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protected function assertResource($resource) |
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{ |
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if (! is_resource($resource)) { |
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throw new RuntimeException( |
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'Unable to open "php://temp" resource.' |
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); |
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} |
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} |
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} |
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terrylinooo /
psr-http
