/
metadata.go
44 lines (36 loc) · 890 Bytes
/
metadata.go
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package sshd
import (
"io/ioutil"
"time"
mdata "github.com/go-gost/core/metadata"
mdutil "github.com/go-gost/core/metadata/util"
"golang.org/x/crypto/ssh"
)
type metadata struct {
handshakeTimeout time.Duration
signer ssh.Signer
}
func (d *sshdDialer) parseMetadata(md mdata.Metadata) (err error) {
const (
handshakeTimeout = "handshakeTimeout"
privateKeyFile = "privateKeyFile"
passphrase = "passphrase"
)
if key := mdutil.GetString(md, privateKeyFile); key != "" {
data, err := ioutil.ReadFile(key)
if err != nil {
return err
}
pp := mdutil.GetString(md, passphrase)
if pp == "" {
d.md.signer, err = ssh.ParsePrivateKey(data)
} else {
d.md.signer, err = ssh.ParsePrivateKeyWithPassphrase(data, []byte(pp))
}
if err != nil {
return err
}
}
d.md.handshakeTimeout = mdutil.GetDuration(md, handshakeTimeout)
return
}