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<?php namespace RocketTheme\Toolbox\StreamWrapper; use RocketTheme\Toolbox\ResourceLocator\ResourceLocatorInterface; /** * Implements Read Only Streams. * * @package RocketTheme\Toolbox\StreamWrapper * @author RocketTheme * @license MIT */ class ReadOnlyStream extends Stream implements StreamInterface { /** * @var ResourceLocatorInterface */ protected static $locator; public function stream_open($uri, $mode, $options, &$opened_url) { if (!\in_array($mode, ['r', 'rb', 'rt'], true)) { if ($options & STREAM_REPORT_ERRORS) { trigger_error(sprintf('stream_open() write modes not allowed for %s', $uri), E_USER_WARNING); } return false; } $path = $this->getPath($uri); if (!$path) { if ($options & STREAM_REPORT_ERRORS) { trigger_error(sprintf('stream_open(): path for %s does not exist', $uri), E_USER_WARNING); } return false; } $this->uri = $uri; $this->handle = ($options & STREAM_REPORT_ERRORS) ? fopen($path, $mode) : @fopen($path, $mode); return (bool) $this->handle; } public function stream_lock($operation) { // Disallow exclusive lock or non-blocking lock requests if (!\in_array($operation, [LOCK_SH, LOCK_UN, LOCK_SH | LOCK_NB], true)) { trigger_error( sprintf('stream_lock() exclusive lock operations not allowed for %s', $this->uri), E_USER_WARNING ); return false; } return flock($this->handle, $operation); } public function stream_metadata($uri, $option, $value) { if ($option !== STREAM_META_TOUCH) { throw new \BadMethodCallException(sprintf('stream_metadata() not allowed for %s', $uri)); } return parent::stream_metadata($uri, $option, $value); } public function stream_write($data) { throw new \BadMethodCallException(sprintf('stream_write() not allowed for %s', $this->uri)); } public function unlink($uri) { throw new \BadMethodCallException(sprintf('unlink() not allowed for %s', $uri)); } public function rename($from_uri, $to_uri) { throw new \BadMethodCallException(sprintf('rename() not allowed for %s', $from_uri)); } public function mkdir($uri, $mode, $options) { throw new \BadMethodCallException(sprintf('mkdir() not allowed for %s', $uri)); } public function rmdir($uri, $options) { throw new \BadMethodCallException(sprintf('rmdir() not allowed for %s', $uri)); } }
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