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<?php |
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namespace TusPhp; |
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use Carbon\Carbon; |
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use TusPhp\Cache\Cacheable; |
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use TusPhp\Exception\FileException; |
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use TusPhp\Exception\ConnectionException; |
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use TusPhp\Exception\OutOfRangeException; |
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class File |
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{ |
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/** @const Max chunk size */ |
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const CHUNK_SIZE = 8192; // 8 bytes. |
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/** @const Input stream */ |
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const INPUT_STREAM = 'php://input'; |
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/** @const Read binary mode */ |
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const READ_BINARY = 'rb'; |
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/** @const Append binary mode */ |
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const APPEND_BINARY = 'ab+'; |
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/** @var string */ |
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protected $key; |
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/** @var string */ |
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protected $checksum; |
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/** @var string */ |
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protected $name; |
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/** @var Cacheable */ |
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protected $cache; |
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/** @var int */ |
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protected $offset; |
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/** @var string */ |
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protected $location; |
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/** @var string */ |
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protected $filePath; |
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/** @var int */ |
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protected $fileSize; |
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/** @var string[] */ |
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private $uploadMetadata = []; |
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/** |
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* File constructor. |
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* |
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* @param string|null $name |
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* @param Cacheable|null $cache |
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*/ |
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public function __construct(string $name = null, Cacheable $cache = null) |
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{ |
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$this->name = $name; |
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$this->cache = $cache; |
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} |
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/** |
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* Set file meta. |
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* |
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* @param int $offset |
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* @param int $fileSize |
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* @param string $filePath |
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* @param string $location |
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* |
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* @return File |
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*/ |
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public function setMeta(int $offset, int $fileSize, string $filePath, string $location = null) : self |
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{ |
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$this->offset = $offset; |
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$this->fileSize = $fileSize; |
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$this->filePath = $filePath; |
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$this->location = $location; |
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return $this; |
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} |
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/** |
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* Set name. |
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* |
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* @param string $name |
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* |
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* @return File |
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*/ |
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public function setName(string $name) : self |
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{ |
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$this->name = $name; |
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return $this; |
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} |
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/** |
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* Get name. |
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* |
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* @return string |
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*/ |
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public function getName() : string |
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{ |
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return $this->name; |
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} |
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/** |
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* Set file size. |
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* |
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* @param int $size |
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* |
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* @return File |
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*/ |
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public function setFileSize(int $size) : self |
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{ |
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$this->fileSize = $size; |
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return $this; |
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} |
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/** |
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* Get file size. |
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* |
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* @return int |
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*/ |
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public function getFileSize() : int |
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{ |
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return $this->fileSize; |
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} |
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/** |
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* Set key. |
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* |
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* @param string $key |
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* |
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* @return File |
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*/ |
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public function setKey(string $key) : self |
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{ |
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$this->key = $key; |
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return $this; |
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} |
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/** |
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* Get key. |
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* |
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* @return string |
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*/ |
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public function getKey() : string |
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{ |
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return $this->key; |
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} |
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/** |
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* Set checksum. |
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* |
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* @param string $checksum |
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* |
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* @return File |
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*/ |
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public function setChecksum(string $checksum) : self |
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{ |
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$this->checksum = $checksum; |
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return $this; |
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} |
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/** |
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* Get checksum. |
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* |
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* @return string |
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*/ |
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public function getChecksum() : string |
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{ |
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return $this->checksum; |
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} |
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/** |
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* Set offset. |
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* |
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* @param int $offset |
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* |
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* @return File |
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*/ |
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public function setOffset(int $offset) : self |
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{ |
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$this->offset = $offset; |
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return $this; |
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} |
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/** |
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* Get offset. |
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* |
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* @return int |
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*/ |
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public function getOffset() : int |
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{ |
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return $this->offset; |
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} |
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/** |
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* Set location. |
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* |
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* @param string $location |
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* |
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* @return File |
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*/ |
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public function setLocation(string $location) : self |
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{ |
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$this->location = $location; |
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return $this; |
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} |
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/** |
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* Get location. |
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* |
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* @return string |
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*/ |
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public function getLocation() : string |
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{ |
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return $this->location; |
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} |
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/** |
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* Set absolute file location. |
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* |
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* @param string $path |
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* |
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* @return File |
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*/ |
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public function setFilePath(string $path) : self |
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{ |
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$this->filePath = $path; |
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return $this; |
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} |
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/** |
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* Get absolute location. |
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* |
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* @return string |
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*/ |
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public function getFilePath() : string |
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{ |
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return $this->filePath; |
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} |
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/** |
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* @param string[] $metadata |
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* |
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* @return File |
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*/ |
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public function setUploadMetadata(array $metadata) : self |
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{ |
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$this->uploadMetadata = $metadata; |
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return $this; |
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} |
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/** |
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* Get input stream. |
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* |
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* @return string |
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*/ |
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public function getInputStream() : string |
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{ |
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return self::INPUT_STREAM; |
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} |
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/** |
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* Get file meta. |
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* |
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* @return array |
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*/ |
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public function details() : array |
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{ |
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$now = Carbon::now(); |
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return [ |
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'name' => $this->name, |
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'size' => $this->fileSize, |
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'offset' => $this->offset, |
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'checksum' => $this->checksum, |
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'location' => $this->location, |
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'file_path' => $this->filePath, |
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'metadata' => $this->uploadMetadata, |
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'created_at' => $now->format($this->cache::RFC_7231), |
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'expires_at' => $now->addSeconds($this->cache->getTtl())->format($this->cache::RFC_7231), |
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]; |
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} |
295
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296
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/** |
297
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* Upload file to server. |
298
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* |
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* @param int $totalBytes |
300
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* |
301
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* @throws ConnectionException |
302
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* |
303
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* @return int |
304
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*/ |
305
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public function upload(int $totalBytes) : int |
306
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{ |
307
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if ($this->offset === $totalBytes) { |
308
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return $this->offset; |
309
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} |
310
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311
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$input = $this->open($this->getInputStream(), self::READ_BINARY); |
312
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$output = $this->open($this->getFilePath(), self::APPEND_BINARY); |
313
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$key = $this->getKey(); |
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315
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try { |
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$this->seek($output, $this->offset); |
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318
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while ( ! feof($input)) { |
319
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if (CONNECTION_NORMAL !== connection_status()) { |
320
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throw new ConnectionException('Connection aborted by user.'); |
321
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} |
322
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323
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$data = $this->read($input, self::CHUNK_SIZE); |
324
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$bytes = $this->write($output, $data, self::CHUNK_SIZE); |
325
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326
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$this->offset += $bytes; |
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328
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$this->cache->set($key, ['offset' => $this->offset]); |
329
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330
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3 |
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if ($this->offset > $totalBytes) { |
331
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throw new OutOfRangeException('The uploaded file is corrupt.'); |
332
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} |
333
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334
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if ($this->offset === $totalBytes) { |
335
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break; |
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} |
337
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} |
338
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} finally { |
339
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$this->close($input); |
340
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$this->close($output); |
341
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} |
342
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343
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2 |
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return $this->offset; |
344
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} |
345
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346
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/** |
347
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* Open file in given mode. |
348
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* |
349
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* @param string $filePath |
350
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* @param string $mode |
351
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* |
352
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* @throws FileException |
353
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* |
354
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* @return resource |
355
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*/ |
356
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6 |
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public function open(string $filePath, string $mode) |
357
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{ |
358
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6 |
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$this->exists($filePath, $mode); |
359
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360
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5 |
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$ptr = @fopen($filePath, $mode); |
361
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362
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5 |
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if (false === $ptr) { |
363
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2 |
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throw new FileException("Unable to open $filePath."); |
364
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} |
365
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366
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4 |
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return $ptr; |
367
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} |
368
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|
369
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/** |
370
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* Check if file to read exists. |
371
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* |
372
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* @param string $filePath |
373
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* @param string $mode |
374
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* |
375
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* @throws FileException |
376
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* |
377
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* @return bool |
378
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*/ |
379
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5 |
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public function exists(string $filePath, string $mode = self::READ_BINARY) : bool |
380
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{ |
381
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5 |
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if (self::INPUT_STREAM === $filePath) { |
382
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1 |
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return true; |
383
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} |
384
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|
385
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5 |
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if (self::READ_BINARY === $mode && ! file_exists($filePath)) { |
386
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2 |
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throw new FileException('File not found.'); |
387
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} |
388
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389
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3 |
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return true; |
390
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} |
391
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|
392
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/** |
393
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* Move file pointer to given offset. |
394
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* |
395
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* @param Resource $handle |
396
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* @param int $offset |
397
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* @param int $whence |
398
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* |
399
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* @throws FileException |
400
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* |
401
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* @return int |
402
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*/ |
403
|
3 |
|
public function seek($handle, int $offset, int $whence = SEEK_SET) : int |
404
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{ |
405
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3 |
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$position = fseek($handle, $offset, $whence); |
406
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|
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|
407
|
3 |
|
if (-1 === $position) { |
408
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1 |
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throw new FileException('Cannot move pointer to desired position.'); |
409
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} |
410
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|
411
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2 |
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return $position; |
412
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} |
413
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|
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|
414
|
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/** |
415
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* Read data from file. |
416
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|
* |
417
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* @param Resource $handle |
418
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|
|
* @param int $chunkSize |
419
|
|
|
* |
420
|
|
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* @throws FileException |
421
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|
|
* |
422
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|
|
* @return string |
423
|
|
|
*/ |
424
|
3 |
|
public function read($handle, int $chunkSize) : string |
425
|
|
|
{ |
426
|
3 |
|
$data = fread($handle, $chunkSize); |
427
|
|
|
|
428
|
3 |
|
if (false === $data) { |
429
|
1 |
|
throw new FileException('Cannot read file.'); |
430
|
|
|
} |
431
|
|
|
|
432
|
2 |
|
return (string) $data; |
433
|
|
|
} |
434
|
|
|
|
435
|
|
|
/** |
436
|
|
|
* Write data to file. |
437
|
|
|
* |
438
|
|
|
* @param Resource $handle |
439
|
|
|
* @param string $data |
440
|
|
|
* @param int|null $length |
441
|
|
|
* |
442
|
|
|
* @throws FileException |
443
|
|
|
* |
444
|
|
|
* @return int |
445
|
|
|
*/ |
446
|
2 |
|
public function write($handle, string $data, $length = null) : int |
447
|
|
|
{ |
448
|
2 |
|
$bytesWritten = is_int($length) ? fwrite($handle, $data, $length) : fwrite($handle, $data); |
449
|
|
|
|
450
|
2 |
|
if (false === $bytesWritten) { |
|
|
|
|
451
|
1 |
|
throw new FileException('Cannot write to a file.'); |
452
|
|
|
} |
453
|
|
|
|
454
|
1 |
|
return $bytesWritten; |
455
|
|
|
} |
456
|
|
|
|
457
|
|
|
/** |
458
|
|
|
* Merge 2 or more files. |
459
|
|
|
* |
460
|
|
|
* @param array $files File data with meta info. |
461
|
|
|
* |
462
|
|
|
* @return int |
463
|
|
|
*/ |
464
|
3 |
|
public function merge(array $files) : int |
465
|
|
|
{ |
466
|
3 |
|
$destination = $this->getFilePath(); |
467
|
3 |
|
$firstFile = array_shift($files); |
468
|
|
|
|
469
|
|
|
// First partial file can directly be copied. |
470
|
3 |
|
$this->copy($firstFile['file_path'], $destination); |
471
|
|
|
|
472
|
2 |
|
$this->offset = $firstFile['offset']; |
473
|
2 |
|
$this->fileSize = filesize($firstFile['file_path']); |
474
|
|
|
|
475
|
2 |
|
$handle = $this->open($destination, self::APPEND_BINARY); |
476
|
|
|
|
477
|
2 |
|
foreach ($files as $file) { |
478
|
2 |
|
if ( ! file_exists($file['file_path'])) { |
479
|
1 |
|
throw new FileException('File to be merged not found.'); |
480
|
|
|
} |
481
|
|
|
|
482
|
1 |
|
$this->fileSize += $this->write($handle, file_get_contents($file['file_path'])); |
483
|
|
|
|
484
|
1 |
|
$this->offset += $file['offset']; |
485
|
|
|
} |
486
|
|
|
|
487
|
1 |
|
$this->close($handle); |
488
|
|
|
|
489
|
1 |
|
return $this->fileSize; |
490
|
|
|
} |
491
|
|
|
|
492
|
|
|
/** |
493
|
|
|
* Copy file from source to destination. |
494
|
|
|
* |
495
|
|
|
* @param string $source |
496
|
|
|
* @param string $destination |
497
|
|
|
* |
498
|
|
|
* @return bool |
499
|
|
|
*/ |
500
|
2 |
|
public function copy(string $source, string $destination) : bool |
501
|
|
|
{ |
502
|
2 |
|
$status = @copy($source, $destination); |
503
|
|
|
|
504
|
2 |
|
if (false === $status) { |
505
|
1 |
|
throw new FileException(sprintf('Cannot copy source (%s) to destination (%s).', $source, $destination)); |
506
|
|
|
} |
507
|
|
|
|
508
|
1 |
|
return $status; |
509
|
|
|
} |
510
|
|
|
|
511
|
|
|
/** |
512
|
|
|
* Delete file and/or folder. |
513
|
|
|
* |
514
|
|
|
* @param array $files |
515
|
|
|
* @param bool $folder |
516
|
|
|
* |
517
|
|
|
* @return bool |
518
|
|
|
*/ |
519
|
4 |
|
public function delete(array $files, bool $folder = false) : bool |
520
|
|
|
{ |
521
|
4 |
|
$status = $this->deleteFiles($files); |
522
|
|
|
|
523
|
4 |
|
if ($status && $folder) { |
524
|
2 |
|
return rmdir(dirname(current($files))); |
525
|
|
|
} |
526
|
|
|
|
527
|
2 |
|
return $status; |
528
|
|
|
} |
529
|
|
|
|
530
|
|
|
/** |
531
|
|
|
* Delete multiple files. |
532
|
|
|
* |
533
|
|
|
* @param array $files |
534
|
|
|
* |
535
|
|
|
* @return bool |
536
|
|
|
*/ |
537
|
3 |
|
public function deleteFiles(array $files) : bool |
538
|
|
|
{ |
539
|
3 |
|
if (empty($files)) { |
540
|
1 |
|
return false; |
541
|
|
|
} |
542
|
|
|
|
543
|
2 |
|
$status = true; |
544
|
|
|
|
545
|
2 |
|
foreach ($files as $file) { |
546
|
2 |
|
if (file_exists($file)) { |
547
|
1 |
|
$status = $status && unlink($file); |
548
|
|
|
} |
549
|
|
|
} |
550
|
|
|
|
551
|
2 |
|
return $status; |
552
|
|
|
} |
553
|
|
|
|
554
|
|
|
/** |
555
|
|
|
* Close file. |
556
|
|
|
* |
557
|
|
|
* @param $handle |
558
|
|
|
* |
559
|
|
|
* @return bool |
560
|
|
|
*/ |
561
|
4 |
|
public function close($handle) : bool |
562
|
|
|
{ |
563
|
4 |
|
return fclose($handle); |
564
|
|
|
} |
565
|
|
|
} |
566
|
|
|
|