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registry.go
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registry.go
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package secrets
import (
"sync"
"time"
)
type EncrypterCreator interface {
GetEncrypter(time.Duration, string) (Encryption, error)
}
type Encryption interface {
CreateNonce() ([]byte, error)
Decrypt([]byte) ([]byte, error)
Encrypt([]byte) ([]byte, error)
Close()
}
type Registry struct {
mu sync.Mutex
encrypterMap map[string]*Encrypter
}
// NewRegistry returns a Registry and implements EncrypterCreator to
// store and manage secrets
func NewRegistry() *Registry {
e := make(map[string]*Encrypter)
return &Registry{
encrypterMap: e,
}
}
func (r *Registry) GetEncrypter(refreshInterval time.Duration, file string) (Encryption, error) {
r.mu.Lock()
defer r.mu.Unlock()
if e, ok := r.encrypterMap[file]; ok {
return e, nil
}
e, err := newEncrypter(file)
if err != nil {
return nil, err
}
if refreshInterval > 0 {
err := e.runCipherRefresher(refreshInterval)
if err != nil {
return nil, err
}
}
r.encrypterMap[file] = e
return e, nil
}
// Close will close all Encryption of the Registry
func (r *Registry) Close() {
for _, v := range r.encrypterMap {
v.Close()
}
}