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<?php |
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/** |
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* This file is part of Stream package. |
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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 Serafim\Stream\Wrapper; |
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use Serafim\Stream\Exception\StreamException; |
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use Serafim\Stream\Stream; |
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use Serafim\Stream\StreamInterface; |
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class ReadStreamWrapper extends AbstractStreamWrapper |
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{ |
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/** |
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* @var int |
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*/ |
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protected const STAT_MTIME_NUMERIC_OFFSET = 9; |
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/** |
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* @var string |
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*/ |
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protected const STAT_MTIME_ASSOC_OFFSET = 'mtime'; |
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/** |
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* @var string |
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*/ |
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protected string $protocol; |
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/** |
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* @var string |
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*/ |
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protected string $pathname; |
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/** |
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* @var StreamInterface |
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*/ |
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protected StreamInterface $stream; |
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/** |
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* {@inheritDoc} |
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*/ |
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public function stream_open(string $uri, string $mode, int $options, &$openedPath): bool |
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{ |
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[$this->protocol, $this->pathname] = $this->parseUri($uri); |
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7 |
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$this->stream = Stream::get($this->protocol); |
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7 |
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if (\STREAM_USE_PATH & $options && ! \is_file($this->pathname)) { |
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$trace = \debug_backtrace(\DEBUG_BACKTRACE_IGNORE_ARGS); |
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1 |
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$this->pathname = \dirname($trace[1]['file']) . '/' . $this->pathname; |
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1 |
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} |
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$this->resource = \fopen('php://memory', 'rb+'); |
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\fwrite($this->resource, $this->stream->read($this->pathname)); |
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\rewind($this->resource); |
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return true; |
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} |
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/** |
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* @param string $uri |
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* @return array<string> |
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* @throws StreamException |
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*/ |
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private function parseUri(string $uri): array |
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{ |
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$chunks = \explode('://', $uri); |
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if (\count($chunks) !== 2) { |
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$error = \sprintf('Bad protocol format "%s"', $uri); |
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throw new StreamException($error, StreamException::CODE_STREAM_OPEN); |
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} |
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return $chunks; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function stream_read(int $length): string |
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{ |
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return ! \feof($this->resource) ? \fread($this->resource, $length) : ''; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function stream_eof(): bool |
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4 |
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{ |
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return \feof($this->resource); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function stream_stat(): array |
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3 |
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{ |
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$stat = \fstat($this->resource); |
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3 |
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if ($stat) { |
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++$stat[static::STAT_MTIME_ASSOC_OFFSET]; |
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++$stat[static::STAT_MTIME_NUMERIC_OFFSET]; |
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} |
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return $stat; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function stream_close(): void |
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{ |
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\fclose($this->resource); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function stream_tell(): int |
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1 |
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{ |
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return (int)\ftell($this->resource); |
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1 |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function stream_seek(int $offset, int $whence = \SEEK_SET): bool |
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1 |
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{ |
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return \fseek($this->resource, $offset, $whence) >= 0; |
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1 |
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} |
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} |
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SerafimArts /
Stream
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