scp

type Command interface {
	// Execute processes SCP traffic
	Execute(ch io.ReadWriter) error
	// GetRemoteShellCmd returns a remove shell command that
	// has to be executed on the remove server (handled by Teleport)
	GetRemoteShellCmd() (string, error)
}

type Config struct {
	// Flags is SCP command line flags
	Flags Flags
	// User is a user who runs SCP command
	User *user.User
	// AuditLog is AuditLog log
	AuditLog events.IAuditLog
	// ProgressWriter is a writer to for printing the progress
	// (used only on the client for printing the progress)
	ProgressWriter io.Writer
	// FileSystem is a file system on which SCP command is ran
	FileSystem FileSystem
	// RemoteLocation is the file remote destination
	RemoteLocation string
}

type FileInfo interface {
	// IsDir tells if this is a directory
	IsDir() bool
	// ReadDir returns information of directory files
	ReadDir() ([]FileInfo, error)
	// GetName returns file name
	GetName() string
	// GetPath returns file path
	GetPath() string
	// GetModePerm returns file permissions
	GetModePerm() os.FileMode
	// GetSize returns file size
	GetSize() int64
}

type FileSystem interface {
	// IsDir tells if given path is a directory
	IsDir(path string) bool
	// GetFileInfo returns FileInfo for a given file path
	GetFileInfo(filePath string) (FileInfo, error)
	// MkDir creates a directory
	MkDir(path string, mode int) error
	// OpenFile opens a file and returns its Reader
	OpenFile(filePath string) (io.ReadCloser, error)
	// CreateFile creates a new file
	CreateFile(filePath string, length uint64) (io.WriteCloser, error)
	// SetChmod sets file permissions
	SetChmod(path string, mode int) error
}

type Flags struct {
	// Source indicates upload mode
	Source bool
	// Sink indicates receive mode
	Sink bool
	//  Verbose sets a logging mode
	Verbose bool
	// Target sets targeted files to be transfered
	Target []string
	// Recursive indicates recursive file transfer
	Recursive bool
	// RemoteAddr is remote host address
	RemoteAddr string
	// LocalAddr is local host address
	LocalAddr string
}