socks4

type AddrAnfUser struct {
	Username string
	// contains filtered or unexported fields
}

type Authentication interface {
	Auth(cmd Command, username string) bool
}

type AuthenticationFunc func(cmd Command, username string) bool

type BytesPool interface {
	Get() []byte
	Put([]byte)
}

type Command byte

type Dialer struct {
	// ProxyNetwork network between a proxy server and a client
	ProxyNetwork string
	// ProxyAddress proxy server address
	ProxyAddress string
	// ProxyDial specifies the optional dial function for
	// establishing the transport connection.
	ProxyDial func(ctx context.Context, network string, address string) (net.Conn, error)
	// Username use username authentication if not empty
	Username string
	// IsResolve resolve domain name on locally
	IsResolve bool
	// Resolver optionally specifies an alternate resolver to use
	Resolver *net.Resolver
	// Timeout is the maximum amount of time a dial will wait for
	// a connect to complete. The default is no timeout
	Timeout time.Duration
}

type Logger interface {
	Println(v ...interface{})
}

type Server struct {
	// Authentication is proxy authentication
	Authentication Authentication
	// ProxyDial specifies the optional proxyDial function for
	// establishing the transport connection.
	ProxyDial func(ctx context.Context, network string, address string) (net.Conn, error)
	// ProxyListenBind specifies the optional proxyListenBind function for
	// establishing the transport connection.
	ProxyListenBind func(ctx context.Context, network string, address string) (net.Listener, error)
	// ListenBindReuseTimeout is the timeout for reusing bind listener
	ListenBindReuseTimeout time.Duration
	// ListenBindAcceptTimeout is the timeout for accepting connections on bind listener
	ListenBindAcceptTimeout time.Duration

	// Logger error log
	Logger Logger
	// Context is default context
	Context context.Context
	// BytesPool getting and returning temporary bytes for use by io.CopyBuffer
	BytesPool BytesPool
	// contains filtered or unexported fields
}

type SimpleServer struct {
	Server
	Listener net.Listener
	Network  string
	Address  string
	Username string
}