connector

type Connector interface {
	// Every connector should be able to construct a unique id for itself
	// that is the same for each backend.
	GetId() string
	// Prepare the backend storage for initialization.
	PrepareStorage() error
	// Get a reader that transparently handles all decryption.
	GetCipherReader(fileInfo *dirent.Dirent, blockCipher cipher.Block) (util.ReadSeekCloser, error)
	// Metadata may be stored in a different way than normal files.
	GetMetadataReader(metadataId string, blockCipher cipher.Block, iv []byte) (util.ReadSeekCloser, error)
	GetCipherWriter(fileInfo *dirent.Dirent, blockCipher cipher.Block) (*cipherio.CipherWriter, error)
	GetMetadataWriter(metadataId string, blockCipher cipher.Block, iv []byte) (*cipherio.CipherWriter, error)
	RemoveMetadataFile(metadataId string) error
	RemoveFile(file *dirent.Dirent) error
	Close() error
}