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woodpecker/server/services/encryption/tink_state.go
2024-02-11 18:42:33 +01:00

141 lines
3.7 KiB
Go

// Copyright 2023 Woodpecker 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 encryption
import (
"errors"
"fmt"
"github.com/rs/zerolog/log"
)
func (svc *tinkEncryptionService) enable() error {
if err := svc.callbackOnEnable(); err != nil {
return fmt.Errorf(errTemplateFailedEnablingEncryption, err)
}
if err := svc.updateCiphertextSample(); err != nil {
return fmt.Errorf(errTemplateFailedEnablingEncryption, err)
}
log.Warn().Msg(logMessageEncryptionEnabled)
return nil
}
func (svc *tinkEncryptionService) disable() error {
if err := svc.callbackOnDisable(); err != nil {
return fmt.Errorf(errTemplateFailedDisablingEncryption, err)
}
if err := svc.deleteCiphertextSample(); err != nil {
return fmt.Errorf(errTemplateFailedDisablingEncryption, err)
}
log.Warn().Msg(logMessageEncryptionDisabled)
return nil
}
func (svc *tinkEncryptionService) rotate() error {
newSvc := &tinkEncryptionService{
keysetFilePath: svc.keysetFilePath,
primaryKeyID: "",
encryption: nil,
store: svc.store,
keysetFileWatcher: nil,
clients: svc.clients,
}
if err := newSvc.loadKeyset(); err != nil {
return fmt.Errorf(errTemplateFailedRotatingEncryption, err)
}
err := newSvc.validateKeyset()
if errors.Is(err, errEncryptionKeyRotated) {
err = newSvc.updateCiphertextSample()
}
if err != nil {
return fmt.Errorf(errTemplateFailedRotatingEncryption, err)
}
if err := newSvc.callbackOnRotation(); err != nil {
return fmt.Errorf(errTemplateFailedRotatingEncryption, err)
}
if err := newSvc.initFileWatcher(); err != nil {
return fmt.Errorf(errTemplateFailedRotatingEncryption, err)
}
return nil
}
func (svc *tinkEncryptionService) updateCiphertextSample() error {
ciphertext, err := svc.Encrypt(svc.primaryKeyID, keyIDAssociatedData)
if err != nil {
return fmt.Errorf(errTemplateFailedUpdatingServerConfig, err)
}
if err := svc.store.ServerConfigSet(ciphertextSampleConfigKey, ciphertext); err != nil {
return fmt.Errorf(errTemplateFailedUpdatingServerConfig, err)
}
log.Info().Msg(logMessageEncryptionKeyRegistered)
return nil
}
func (svc *tinkEncryptionService) deleteCiphertextSample() error {
if err := svc.store.ServerConfigDelete(ciphertextSampleConfigKey); err != nil {
return fmt.Errorf(errTemplateFailedUpdatingServerConfig, err)
}
return nil
}
func (svc *tinkEncryptionService) initClients() error {
for _, client := range svc.clients {
if err := client.SetEncryptionService(svc); err != nil {
return err
}
}
log.Info().Msg(logMessageClientsInitialized)
return nil
}
func (svc *tinkEncryptionService) callbackOnEnable() error {
for _, client := range svc.clients {
if err := client.EnableEncryption(); err != nil {
return err
}
}
log.Info().Msg(logMessageClientsEnabled)
return nil
}
func (svc *tinkEncryptionService) callbackOnRotation() error {
for _, client := range svc.clients {
if err := client.MigrateEncryption(svc); err != nil {
return err
}
}
log.Info().Msg(logMessageClientsRotated)
return nil
}
func (svc *tinkEncryptionService) callbackOnDisable() error {
for _, client := range svc.clients {
if err := client.MigrateEncryption(&noEncryption{}); err != nil {
return err
}
}
log.Info().Msg(logMessageClientsDecrypted)
return nil
}