package ssh

import (
	"golang.org/x/crypto/ssh"
)

const (
	ChannelTypeDefault     = ""
	ChannelTypeAgent       = "auth-agent@openssh.com"
	ChannelTypeDirectTCPIP = "direct-tcpip"
	ChannelTypeSession     = "session"
)

const (
	RequestTypeAgent        = "auth-agent-req@openssh.com"
	RequestTypeEnv          = "env"
	RequestTypeExec         = "exec"
	RequestTypePTY          = "pty-req"
	RequestTypeShell        = "shell"
	RequestTypeWindowChange = "window-change"
)

// Type aliases for convenience.
type (
	CertChecker  = ssh.CertChecker
	Certificate  = ssh.Certificate
	Conn         = ssh.Conn
	ConnMetadata = ssh.ConnMetadata
	Permissions  = ssh.Permissions
	PublicKey    = ssh.PublicKey
	ServerConfig = ssh.ServerConfig
	Signer       = ssh.Signer
)

func MarshalAuthorizedKey(in PublicKey) []byte {
	return ssh.MarshalAuthorizedKey(in)
}

func ParseAuthorizedKey(in []byte) (out PublicKey, options []string, err error) {
	out, _, options, _, err = ssh.ParseAuthorizedKey(in)
	return
}

func ParsePublicKey(in []byte) (out PublicKey, err error) {
	return ssh.ParsePublicKey(in)
}