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<?php
declare(strict_types=1);
namespace League\Flysystem;
use DateTimeInterface;
use Generator;
use League\Flysystem\UrlGeneration\PrefixPublicUrlGenerator;
use League\Flysystem\UrlGeneration\PublicUrlGenerator;
use League\Flysystem\UrlGeneration\ShardedPrefixPublicUrlGenerator;
use League\Flysystem\UrlGeneration\TemporaryUrlGenerator;
use Throwable;
use function array_key_exists;
use function is_array;
class Filesystem implements FilesystemOperator
{
use CalculateChecksumFromStream;
private Config $config;
private PathNormalizer $pathNormalizer;
public function __construct(
private FilesystemAdapter $adapter,
array $config = [],
?PathNormalizer $pathNormalizer = null,
private ?PublicUrlGenerator $publicUrlGenerator = null,
private ?TemporaryUrlGenerator $temporaryUrlGenerator = null,
) {
$this->config = new Config($config);
$this->pathNormalizer = $pathNormalizer ?? new WhitespacePathNormalizer();
}
public function fileExists(string $location): bool
{
return $this->adapter->fileExists($this->pathNormalizer->normalizePath($location));
}
public function directoryExists(string $location): bool
{
return $this->adapter->directoryExists($this->pathNormalizer->normalizePath($location));
}
public function has(string $location): bool
{
$path = $this->pathNormalizer->normalizePath($location);
return $this->adapter->fileExists($path) || $this->adapter->directoryExists($path);
}
public function write(string $location, string $contents, array $config = []): void
{
$this->adapter->write(
$this->pathNormalizer->normalizePath($location),
$contents,
$this->config->extend($config)
);
}
public function writeStream(string $location, $contents, array $config = []): void
{
/* @var resource $contents */
$this->assertIsResource($contents);
$this->rewindStream($contents);
$this->adapter->writeStream(
$this->pathNormalizer->normalizePath($location),
$contents,
$this->config->extend($config)
);
}
public function read(string $location): string
{
return $this->adapter->read($this->pathNormalizer->normalizePath($location));
}
public function readStream(string $location)
{
return $this->adapter->readStream($this->pathNormalizer->normalizePath($location));
}
public function delete(string $location): void
{
$this->adapter->delete($this->pathNormalizer->normalizePath($location));
}
public function deleteDirectory(string $location): void
{
$this->adapter->deleteDirectory($this->pathNormalizer->normalizePath($location));
}
public function createDirectory(string $location, array $config = []): void
{
$this->adapter->createDirectory(
$this->pathNormalizer->normalizePath($location),
$this->config->extend($config)
);
}
public function listContents(string $location, bool $deep = self::LIST_SHALLOW): DirectoryListing
{
$path = $this->pathNormalizer->normalizePath($location);
$listing = $this->adapter->listContents($path, $deep);
return new DirectoryListing($this->pipeListing($location, $deep, $listing));
}
private function pipeListing(string $location, bool $deep, iterable $listing): Generator
{
try {
foreach ($listing as $item) {
yield $item;
}
} catch (Throwable $exception) {
throw UnableToListContents::atLocation($location, $deep, $exception);
}
}
public function move(string $source, string $destination, array $config = []): void
{
$config = $this->resolveConfigForMoveAndCopy($config);
$from = $this->pathNormalizer->normalizePath($source);
$to = $this->pathNormalizer->normalizePath($destination);
if ($from === $to) {
$resolutionStrategy = $config->get(Config::OPTION_MOVE_IDENTICAL_PATH, ResolveIdenticalPathConflict::TRY);
if ($resolutionStrategy === ResolveIdenticalPathConflict::FAIL) {
throw UnableToMoveFile::sourceAndDestinationAreTheSame($source, $destination);
} elseif ($resolutionStrategy === ResolveIdenticalPathConflict::IGNORE) {
return;
}
}
$this->adapter->move($from, $to, $config);
}
public function copy(string $source, string $destination, array $config = []): void
{
$config = $this->resolveConfigForMoveAndCopy($config);
$from = $this->pathNormalizer->normalizePath($source);
$to = $this->pathNormalizer->normalizePath($destination);
if ($from === $to) {
$resolutionStrategy = $config->get(Config::OPTION_COPY_IDENTICAL_PATH, ResolveIdenticalPathConflict::TRY);
if ($resolutionStrategy === ResolveIdenticalPathConflict::FAIL) {
throw UnableToCopyFile::sourceAndDestinationAreTheSame($source, $destination);
} elseif ($resolutionStrategy === ResolveIdenticalPathConflict::IGNORE) {
return;
}
}
$this->adapter->copy($from, $to, $config);
}
public function lastModified(string $path): int
{
return $this->adapter->lastModified($this->pathNormalizer->normalizePath($path))->lastModified();
}
public function fileSize(string $path): int
{
return $this->adapter->fileSize($this->pathNormalizer->normalizePath($path))->fileSize();
}
public function mimeType(string $path): string
{
return $this->adapter->mimeType($this->pathNormalizer->normalizePath($path))->mimeType();
}
public function setVisibility(string $path, string $visibility): void
{
$this->adapter->setVisibility($this->pathNormalizer->normalizePath($path), $visibility);
}
public function visibility(string $path): string
{
return $this->adapter->visibility($this->pathNormalizer->normalizePath($path))->visibility();
}
public function publicUrl(string $path, array $config = []): string
{
$this->publicUrlGenerator ??= $this->resolvePublicUrlGenerator()
?? throw UnableToGeneratePublicUrl::noGeneratorConfigured($path);
$config = $this->config->extend($config);
return $this->publicUrlGenerator->publicUrl(
$this->pathNormalizer->normalizePath($path),
$config,
);
}
public function temporaryUrl(string $path, DateTimeInterface $expiresAt, array $config = []): string
{
$generator = $this->temporaryUrlGenerator ?? $this->adapter;
if ($generator instanceof TemporaryUrlGenerator) {
return $generator->temporaryUrl(
$this->pathNormalizer->normalizePath($path),
$expiresAt,
$this->config->extend($config)
);
}
throw UnableToGenerateTemporaryUrl::noGeneratorConfigured($path);
}
public function checksum(string $path, array $config = []): string
{
$config = $this->config->extend($config);
if ( ! $this->adapter instanceof ChecksumProvider) {
return $this->calculateChecksumFromStream($path, $config);
}
try {
return $this->adapter->checksum(
$this->pathNormalizer->normalizePath($path),
$config,
);
} catch (ChecksumAlgoIsNotSupported) {
return $this->calculateChecksumFromStream(
$this->pathNormalizer->normalizePath($path),
$config,
);
}
}
private function resolvePublicUrlGenerator(): ?PublicUrlGenerator
{
if ($publicUrl = $this->config->get('public_url')) {
return match (true) {
is_array($publicUrl) => new ShardedPrefixPublicUrlGenerator($publicUrl),
default => new PrefixPublicUrlGenerator($publicUrl),
};
}
if ($this->adapter instanceof PublicUrlGenerator) {
return $this->adapter;
}
return null;
}
/**
* @param mixed $contents
*/
private function assertIsResource($contents): void
{
if (is_resource($contents) === false) {
throw new InvalidStreamProvided(
"Invalid stream provided, expected stream resource, received " . gettype($contents)
);
} elseif ($type = get_resource_type($contents) !== 'stream') {
throw new InvalidStreamProvided(
"Invalid stream provided, expected stream resource, received resource of type " . $type
);
}
}
/**
* @param resource $resource
*/
private function rewindStream($resource): void
{
if (ftell($resource) !== 0 && stream_get_meta_data($resource)['seekable']) {
rewind($resource);
}
}
private function resolveConfigForMoveAndCopy(array $config): Config
{
$retainVisibility = $this->config->get(Config::OPTION_RETAIN_VISIBILITY, $config[Config::OPTION_RETAIN_VISIBILITY] ?? true);
$fullConfig = $this->config->extend($config);
/*
* By default, we retain visibility. When we do not retain visibility, the visibility setting
* from the default configuration is ignored. Only when it is set explicitly, we propagate the
* setting.
*/
if ($retainVisibility && ! array_key_exists(Config::OPTION_VISIBILITY, $config)) {
$fullConfig = $fullConfig->withoutSettings(Config::OPTION_VISIBILITY)->extend($config);
}
return $fullConfig;
}
}