/
ssh_keys.go
84 lines (75 loc) · 1.99 KB
/
ssh_keys.go
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package proto
import (
"encoding/json"
"golang.org/x/crypto/ssh"
"strings"
)
type MarshalablePublicKey struct {
ssh.PublicKey
Comment string
}
// String returns the SSH authorized_keys formatted string of the public key.
//
//goland:noinspection GoMixedReceiverTypes
func (mpk *MarshalablePublicKey) String() string {
str := string(ssh.MarshalAuthorizedKey(mpk))
str = strings.Trim(str, "\n")
if mpk.Comment != "" {
str += " " + mpk.Comment
}
return str
}
func ParseAuthorizedKey(key string) (*MarshalablePublicKey, error) {
mpk := MarshalablePublicKey{}
err := parseAuthorizedKey(key, &mpk)
if err != nil {
return nil, err
}
return &mpk, nil
}
// parseAuthorizedKey parses an SSH public key in authorized_keys format to an already-allocated MarshalablePublicKey
func parseAuthorizedKey(data string, mpk *MarshalablePublicKey) error {
key, comment, _, _, err := ssh.ParseAuthorizedKey([]byte(data))
if err != nil {
return err
}
*mpk = MarshalablePublicKey{
PublicKey: key,
Comment: comment,
}
return nil
}
// MarshalJSON marshals an SSH public key to JSON.
//
//goland:noinspection GoMixedReceiverTypes
func (mpk MarshalablePublicKey) MarshalJSON() ([]byte, error) {
return json.Marshal(mpk.String())
}
// UnmarshalJSON unmarshals an SSH public key from JSON.
//
//goland:noinspection GoMixedReceiverTypes
func (mpk *MarshalablePublicKey) UnmarshalJSON(data []byte) error {
var str string
err := json.Unmarshal(data, &str)
if err != nil {
return err
}
return parseAuthorizedKey(str, mpk)
}
// MarshalYAML marshals an SSH public key to YAML.
//
//goland:noinspection GoMixedReceiverTypes
func (mpk MarshalablePublicKey) MarshalYAML() (interface{}, error) {
return mpk.String(), nil
}
// UnmarshalYAML unmarshals an SSH public key from YAML.
//
//goland:noinspection GoMixedReceiverTypes
func (mpk *MarshalablePublicKey) UnmarshalYAML(unmarshal func(interface{}) error) error {
var str string
err := unmarshal(&str)
if err != nil {
return err
}
return parseAuthorizedKey(str, mpk)
}