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<?php |
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namespace Twistor\Flysystem\Plugin; |
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use League\Flysystem\FileNotFoundException; |
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use League\Flysystem\Util; |
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use Twistor\Flysystem\Exception\DirectoryExistsException; |
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use Twistor\Flysystem\Exception\DirectoryNotEmptyException; |
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use Twistor\Flysystem\Exception\NotADirectoryException; |
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class ForcedRename extends AbstractPlugin |
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{ |
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/** |
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* @inheritdoc |
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*/ |
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public function getMethod() |
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{ |
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return 'forcedRename'; |
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} |
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/** |
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* Renames a file. |
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* |
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* @param string $path path to file |
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* @param string $newpath new path |
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* |
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* @return bool |
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* |
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* @throws \League\Flysystem\FileNotFoundException |
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* @throws \Twistor\Flysystem\Exception\DirectoryExistsException |
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* @throws \Twistor\Flysystem\Exception\DirectoryNotEmptyException |
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* @throws \Twistor\Flysystem\Exception\NotADirectoryException |
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*/ |
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public function handle($path, $newpath) |
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{ |
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$path = Util::normalizePath($path); |
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$newpath = Util::normalizePath($newpath); |
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// Ignore useless renames. |
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if ($path === $newpath) { |
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return true; |
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} |
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if ( ! $this->isValidRename($path, $newpath)) { |
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// Returns false if a Flysystem call fails. |
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return false; |
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} |
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return (bool) $this->filesystem->getAdapter()->rename($path, $newpath); |
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} |
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/** |
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* Checks that a rename is valid. |
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* |
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* @param string $source |
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* @param string $dest |
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* |
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* @return bool |
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* |
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* @throws \League\Flysystem\FileNotFoundException |
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* @throws \Twistor\Flysystem\Exception\DirectoryExistsException |
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* @throws \Twistor\Flysystem\Exception\DirectoryNotEmptyException |
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* @throws \Twistor\Flysystem\Exception\NotADirectoryException |
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*/ |
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protected function isValidRename($source, $dest) |
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{ |
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$adapter = $this->filesystem->getAdapter(); |
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if ( ! $adapter->has($source)) { |
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throw new FileNotFoundException($source); |
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} |
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$subdir = Util::dirname($dest); |
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if (strlen($subdir) && ! $adapter->has($subdir)) { |
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throw new FileNotFoundException($source); |
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} |
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if ( ! $adapter->has($dest)) { |
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return true; |
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} |
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return $this->compareTypes($source, $dest); |
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} |
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/** |
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* Compares the file/dir for the source and dest. |
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* |
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* @param string $source |
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* @param string $dest |
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* |
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* @return bool |
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* |
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* @throws \Twistor\Flysystem\Exception\DirectoryExistsException |
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* @throws \Twistor\Flysystem\Exception\DirectoryNotEmptyException |
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* @throws \Twistor\Flysystem\Exception\NotADirectoryException |
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*/ |
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protected function compareTypes($source, $dest) |
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{ |
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$adapter = $this->filesystem->getAdapter(); |
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$source_type = $adapter->getMetadata($source)['type']; |
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$dest_type = $adapter->getMetadata($dest)['type']; |
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// These three checks are done in order of cost to minimize Flysystem |
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// calls. |
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// Don't allow overwriting different types. |
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if ($source_type !== $dest_type) { |
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if ($dest_type === 'dir') { |
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throw new DirectoryExistsException(); |
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} |
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throw new NotADirectoryException(); |
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} |
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// Allow overwriting destination file. |
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if ($source_type === 'file') { |
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return $adapter->delete($dest); |
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} |
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// Allow overwriting destination directory if not empty. |
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$contents = $this->filesystem->listContents($dest); |
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if ( ! empty($contents)) { |
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throw new DirectoryNotEmptyException(); |
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} |
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return $adapter->deleteDir($dest); |
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} |
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} |
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twistor /
flysystem-stream-wrapper
