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keyring.go
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keyring.go
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/*
* Copyright (c) 2018. Abstrium SAS <team (at) pydio.com>
* This file is part of Pydio Cells.
*
* Pydio Cells is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Pydio Cells is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with Pydio Cells. If not, see <http://www.gnu.org/licenses/>.
*
* The latest code can be found at <https://pydio.com>.
*/
package crypto
import (
"context"
"encoding/base64"
"errors"
"github.com/pydio/cells/common/log"
"github.com/zalando/go-keyring"
"go.uber.org/zap"
)
// GetKeyringPassword retrieves password from keyring
// If no key matches "service" and "user" a key is generated if "createIfNotExist" is true
func GetKeyringPassword(service string, user string, createIfNotExist bool) ([]byte, error) {
password, err := keyring.Get(service, user)
if err != nil {
log.Logger(context.Background()).Error("Failed to the master key", zap.Error(err))
}
empty := len(password) == 0
if !empty {
return base64.StdEncoding.DecodeString(password)
}
if !createIfNotExist {
return nil, nil
}
k, err := RandomBytes(50)
if err != nil {
return nil, err
}
password = base64.StdEncoding.EncodeToString(k)
err = keyring.Set(service, user, password)
if err != nil {
log.Logger(context.Background()).Error("failed to save master key", zap.Error(err))
return nil, errors.New("failed to read from keyring. Make sure you have the system keyring installed")
}
return k, nil
}
// SetKeyringPassword base64-encodes password and store it
func SetKeyringPassword(service string, user string, password []byte) error {
strPass := base64.StdEncoding.EncodeToString(password)
err := keyring.Set(service, user, strPass)
if err != nil {
log.Logger(context.Background()).Error("failed to save master key", zap.Error(err))
return errors.New("failed to write into keyring. Make sure you have the system keyring installed.")
}
return nil
}
// DeleteKeyringPassword removes all key that matches "service" and "user"
func DeleteKeyringPassword(service string, user string) error {
err := keyring.Delete(service, user)
if err != nil {
log.Logger(context.Background()).Error("failed to save master key", zap.Error(err))
return errors.New("keyring error")
}
return nil
}