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<?php namespace Spatie\FlysystemDropbox; use Generator; use League\Flysystem\ChecksumProvider; use League\Flysystem\Config; use League\Flysystem\DirectoryAttributes; use League\Flysystem\FileAttributes; use League\Flysystem\FilesystemAdapter; use League\Flysystem\PathPrefixer; use League\Flysystem\StorageAttributes; use League\Flysystem\UnableToCopyFile; use League\Flysystem\UnableToCreateDirectory; use League\Flysystem\UnableToDeleteDirectory; use League\Flysystem\UnableToDeleteFile; use League\Flysystem\UnableToMoveFile; use League\Flysystem\UnableToProvideChecksum; use League\Flysystem\UnableToReadFile; use League\Flysystem\UnableToRetrieveMetadata; use League\Flysystem\UnableToSetVisibility; use League\Flysystem\UnableToWriteFile; use League\MimeTypeDetection\FinfoMimeTypeDetector; use League\MimeTypeDetection\MimeTypeDetector; use Spatie\Dropbox\Client; use Spatie\Dropbox\Exceptions\BadRequest; class DropboxAdapter implements FilesystemAdapter, ChecksumProvider { protected Client $client; protected PathPrefixer $prefixer; protected MimeTypeDetector $mimeTypeDetector; public function __construct( Client $client, string $prefix = '', MimeTypeDetector $mimeTypeDetector = null ) { $this->client = $client; $this->prefixer = new PathPrefixer($prefix); $this->mimeTypeDetector = $mimeTypeDetector ?: new FinfoMimeTypeDetector(); } public function getClient(): Client { return $this->client; } public function fileExists(string $path): bool { $location = $this->applyPathPrefix($path); try { $meta = $this->client->getMetadata($location); return $meta['.tag'] === 'file'; } catch (BadRequest) { return false; } } public function directoryExists(string $path): bool { $location = $this->applyPathPrefix($path); try { $meta = $this->client->getMetadata($location); return $meta['.tag'] === 'folder'; } catch (BadRequest) { return false; } } /** * {@inheritDoc} / public function write(string $path, string $contents, Config $config): void { $location = $this->applyPathPrefix($path); try { $this->client->upload($location, $contents, 'overwrite'); } catch (BadRequest $exception) { throw UnableToWriteFile::atLocation($location, $exception->getMessage(), $exception); } } /* * {@inheritDoc} / public function writeStream(string $path, $contents, Config $config): void { $location = $this->applyPathPrefix($path); try { $this->client->upload($location, $contents, 'overwrite'); } catch (BadRequest $exception) { throw UnableToWriteFile::atLocation($location, $exception->getMessage(), $exception); } } /* * {@inheritDoc} / public function read(string $path): string { $object = $this->readStream($path); $contents = stream_get_contents($object); fclose($object); unset($object); return $contents; } /* * {@inheritDoc} / public function readStream(string $path) { $location = $this->applyPathPrefix($path); try { $stream = $this->client->download($location); } catch (BadRequest $exception) { throw UnableToReadFile::fromLocation($location, $exception->getMessage(), $exception); } return $stream; } /* * {@inheritDoc} / public function delete(string $path): void { $location = $this->applyPathPrefix($path); try { $this->client->delete($location); } catch (BadRequest $exception) { throw UnableToDeleteFile::atLocation($location, $exception->getMessage(), $exception); } } /* * {@inheritDoc} / public function deleteDirectory(string $path): void { $location = $this->applyPathPrefix($path); try { $this->client->delete($location); } catch (UnableToDeleteFile $exception) { throw UnableToDeleteDirectory::atLocation($location, $exception->getPrevious()->getMessage(), $exception); } } /* * {@inheritDoc} / public function createDirectory(string $path, Config $config): void { $location = $this->applyPathPrefix($path); try { $this->client->createFolder($location); } catch (BadRequest $exception) { throw UnableToCreateDirectory::atLocation($location, $exception->getMessage()); } } /* * {@inheritDoc} / public function setVisibility(string $path, string $visibility): void { throw UnableToSetVisibility::atLocation($path, 'Adapter does not support visibility controls.'); } /* * {@inheritDoc} / public function visibility(string $path): FileAttributes { // Noop return new FileAttributes($path); } /* * {@inheritDoc} / public function mimeType(string $path): FileAttributes { return new FileAttributes( $path, null, null, null, $this->mimeTypeDetector->detectMimeTypeFromPath($path) ); } /* * {@inheritDoc} / public function lastModified(string $path): FileAttributes { $location = $this->applyPathPrefix($path); try { $response = $this->client->getMetadata($location); } catch (BadRequest $exception) { throw UnableToRetrieveMetadata::lastModified($location, $exception->getMessage()); } $timestamp = (isset($response['server_modified'])) ? strtotime($response['server_modified']) : null; return new FileAttributes( $path, null, null, $timestamp ); } /* * {@inheritDoc} / public function checksum(string $path, Config $config): string { $algo = $config->get('checksum_algo', 'sha256'); $location = $this->applyPathPrefix($path); try { $response = $this->client->getMetadata($location); } catch (BadRequest $exception) { throw new UnableToProvideChecksum( reason: 'Unable to retrieve metadata.', path: $path, previous: $exception, ); } if (empty($response['content_hash'])) { throw new UnableToProvideChecksum( reason: 'Content-Hash not provided by Dropbox metadata.', path: $path, ); } return $algo === 'sha256' ? $response['content_hash'] : hash($algo, $response['content_hash']); } /* * {@inheritDoc} / public function fileSize(string $path): FileAttributes { $location = $this->applyPathPrefix($path); try { $response = $this->client->getMetadata($location); } catch (BadRequest $exception) { throw UnableToRetrieveMetadata::lastModified($location, $exception->getMessage()); } return new FileAttributes( $path, $response['size'] ?? null ); } /* * {@inheritDoc} / public function listContents(string $path = '', bool $deep = false): iterable { foreach ($this->iterateFolderContents($path, $deep) as $entry) { $storageAttrs = $this->normalizeResponse($entry); // Avoid including the base directory itself if ($storageAttrs->isDir() && $storageAttrs->path() === $path) { continue; } yield $storageAttrs; } } protected function iterateFolderContents(string $path = '', bool $deep = false): Generator { $location = $this->applyPathPrefix($path); try { $result = $this->client->listFolder($location, $deep); } catch (BadRequest $exception) { return; } yield from $result['entries']; while ($result['has_more']) { $result = $this->client->listFolderContinue($result['cursor']); yield from $result['entries']; } } protected function normalizeResponse(array $response): StorageAttributes { $timestamp = (isset($response['server_modified'])) ? strtotime($response['server_modified']) : null; if ($response['.tag'] === 'folder') { $normalizedPath = ltrim($this->prefixer->stripDirectoryPrefix($response['path_display']), '/'); return new DirectoryAttributes( $normalizedPath, null, $timestamp ); } $normalizedPath = ltrim($this->prefixer->stripPrefix($response['path_display']), '/'); return new FileAttributes( $normalizedPath, $response['size'] ?? null, null, $timestamp, $this->mimeTypeDetector->detectMimeTypeFromPath($normalizedPath) ); } /* * {@inheritDoc} / public function move(string $source, string $destination, Config $config): void { $path = $this->applyPathPrefix($source); $newPath = $this->applyPathPrefix($destination); try { $this->client->move($path, $newPath); } catch (BadRequest $exception) { throw UnableToMoveFile::fromLocationTo($path, $newPath, $exception); } } /* * {@inheritDoc} */ public function copy(string $source, string $destination, Config $config): void { $path = $this->applyPathPrefix($source); $newPath = $this->applyPathPrefix($destination); try { $this->client->copy($path, $newPath); } catch (BadRequest $e) { throw UnableToCopyFile::fromLocationTo($path, $newPath, $e); } } protected function applyPathPrefix($path): string { return '/'.trim($this->prefixer->prefixPath($path), '/'); } public function getUrl(string $path): string { return $this->client->getTemporaryLink($path); } }

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