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package ssh
import (
"os"
gossh "golang.org/x/crypto/ssh"
)
// PasswordAuth returns a functional option that sets PasswordHandler on the server.
func PasswordAuth(fn PasswordHandler) Option {
return func(srv *Server) error {
srv.PasswordHandler = fn
return nil
}
}
// PublicKeyAuth returns a functional option that sets PublicKeyHandler on the server.
func PublicKeyAuth(fn PublicKeyHandler) Option {
return func(srv *Server) error {
srv.PublicKeyHandler = fn
return nil
}
}
// HostKeyFile returns a functional option that adds HostSigners to the server
// from a PEM file at filepath.
func HostKeyFile(filepath string) Option {
return func(srv *Server) error {
pemBytes, err := os.ReadFile(filepath)
if err != nil {
return err
}
signer, err := gossh.ParsePrivateKey(pemBytes)
if err != nil {
return err
}
srv.AddHostKey(signer)
return nil
}
}
func KeyboardInteractiveAuth(fn KeyboardInteractiveHandler) Option {
return func(srv *Server) error {
srv.KeyboardInteractiveHandler = fn
return nil
}
}
// HostKeyPEM returns a functional option that adds HostSigners to the server
// from a PEM file as bytes.
func HostKeyPEM(bytes []byte) Option {
return func(srv *Server) error {
signer, err := gossh.ParsePrivateKey(bytes)
if err != nil {
return err
}
srv.AddHostKey(signer)
return nil
}
}
// NoPty returns a functional option that sets PtyCallback to return false,
// denying PTY requests.
func NoPty() Option {
return func(srv *Server) error {
srv.PtyCallback = func(ctx Context, pty Pty) bool {
return false
}
return nil
}
}
// WrapConn returns a functional option that sets ConnCallback on the server.
func WrapConn(fn ConnCallback) Option {
return func(srv *Server) error {
srv.ConnCallback = fn
return nil
}
}
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