dragonfly/pkg/serialize/pemcontent.go

75 lines
1.6 KiB
Go

/*
* Copyright 2022 The Dragonfly Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package serialize
import (
"encoding/json"
"errors"
"os"
"strings"
"gopkg.in/yaml.v3"
)
// PEMContent supports load PEM format from file or just inline PEM format content
type PEMContent string
func (p *PEMContent) UnmarshalJSON(b []byte) error {
var s string
err := json.Unmarshal(b, &s)
if err != nil {
return err
}
return p.loadPEM(s)
}
func (p *PEMContent) UnmarshalYAML(node *yaml.Node) error {
var s string
switch node.Kind {
case yaml.ScalarNode:
if err := node.Decode(&s); err != nil {
return err
}
default:
return errors.New("invalid pem content")
}
return p.loadPEM(s)
}
func (p *PEMContent) loadPEM(content string) error {
if content == "" {
*p = PEMContent("")
return nil
}
// inline PEM, just return
if strings.HasPrefix(strings.TrimSpace(content), "-----BEGIN ") {
val := strings.TrimSpace(content)
*p = PEMContent(val)
return nil
}
file, err := os.ReadFile(content)
if err != nil {
return err
}
val := strings.TrimSpace(string(file))
*p = PEMContent(val)
return nil
}