117 lines
2.5 KiB
Go
117 lines
2.5 KiB
Go
// Copyright 2016-2018, Pulumi Corporation.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package config
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import (
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"encoding/json"
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"errors"
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)
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// Value is a single config value.
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type Value struct {
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value string
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secure bool
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}
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func NewSecureValue(v string) Value {
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return Value{value: v, secure: true}
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}
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func NewValue(v string) Value {
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return Value{value: v, secure: false}
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}
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// Value fetches the value of this configuration entry, using decrypter to decrypt if necessary. If the value
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// is a secret and decrypter is nil, or if decryption fails for any reason, a non-nil error is returned.
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func (c Value) Value(decrypter Decrypter) (string, error) {
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if !c.secure {
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return c.value, nil
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}
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if decrypter == nil {
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return "", errors.New("non-nil decrypter required for secret")
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}
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return decrypter.DecryptValue(c.value)
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}
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func (c Value) Secure() bool {
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return c.secure
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}
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func (c Value) MarshalJSON() ([]byte, error) {
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if !c.secure {
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return json.Marshal(c.value)
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}
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m := make(map[string]string)
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m["secure"] = c.value
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return json.Marshal(m)
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}
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func (c *Value) UnmarshalJSON(b []byte) error {
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var m map[string]string
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err := json.Unmarshal(b, &m)
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if err == nil {
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if len(m) != 1 {
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return errors.New("malformed secure data")
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}
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val, has := m["secure"]
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if !has {
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return errors.New("malformed secure data")
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}
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c.value = val
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c.secure = true
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return nil
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}
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return json.Unmarshal(b, &c.value)
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}
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func (c Value) MarshalYAML() (interface{}, error) {
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if !c.secure {
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return c.value, nil
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}
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m := make(map[string]string)
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m["secure"] = c.value
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return m, nil
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}
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func (c *Value) UnmarshalYAML(unmarshal func(interface{}) error) error {
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var m map[string]string
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err := unmarshal(&m)
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if err == nil {
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if len(m) != 1 {
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return errors.New("malformed secure data")
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}
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val, has := m["secure"]
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if !has {
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return errors.New("malformed secure data")
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}
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c.value = val
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c.secure = true
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return nil
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}
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c.secure = false
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return unmarshal(&c.value)
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}
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