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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Log; |
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use InvalidArgumentException; |
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use RuntimeException; |
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use function error_get_last; |
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use function fclose; |
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use function flock; |
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use function fopen; |
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use function fwrite; |
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use function gettype; |
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use function get_resource_type; |
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use function is_resource; |
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use function sprintf; |
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use function stream_get_meta_data; |
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use const LOCK_EX; |
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use const LOCK_UN; |
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/** |
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* StreamTarget is the log target that writes to the specified output stream. |
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*/ |
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final class StreamTarget extends Target |
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{ |
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/** |
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* @var resource|string The string stream identifier or stream resource. |
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* |
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* @psalm-var mixed |
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*/ |
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private $stream; |
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/** |
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* @param resource|string $stream The string stream identifier or stream resource. |
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*/ |
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public function __construct($stream = 'php://stdout') |
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{ |
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$this->stream = $stream; |
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parent::__construct(); |
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} |
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protected function export(): void |
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{ |
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$stream = $this->createStream(); |
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flock($stream, LOCK_EX); |
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if (fwrite($stream, $this->formatMessages("\n")) === false) { |
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fclose($stream); |
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throw new RuntimeException(sprintf( |
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'Unable to export the log because of an error writing to the stream: %s', |
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error_get_last()['message'] ?? '', |
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)); |
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} |
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$this->stream = stream_get_meta_data($stream)['uri']; |
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flock($stream, LOCK_UN); |
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fclose($stream); |
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} |
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/** |
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* Checks and creates the stream resource. |
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* |
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* @throws RuntimeException if the stream cannot be opened. |
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* @throws InvalidArgumentException if the stream is invalid. |
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* |
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* @return resource The stream resource. |
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*/ |
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private function createStream() |
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{ |
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$stream = $this->stream; |
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if (is_string($stream)) { |
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if (($stream = @fopen($stream, 'ab')) === false) { |
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throw new RuntimeException(sprintf( |
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'The "%s" stream cannot be opened.', |
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$this->stream, |
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)); |
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} |
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} |
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if (!is_resource($stream) || get_resource_type($stream) !== 'stream') { |
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throw new InvalidArgumentException(sprintf( |
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'Invalid stream provided. It must be a string stream identifier or stream resource, "%s" received.', |
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gettype($stream), |
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)); |
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} |
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return $stream; |
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} |
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} |
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yiisoft /
log
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