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cfg.go
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cfg.go
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package vault
import (
"database/sql"
"github.com/jmoiron/sqlx"
"github.com/keys-pub/keys"
"github.com/keys-pub/keys/encoding"
"github.com/pkg/errors"
)
type Config struct {
db *sqlx.DB
}
func (v *Vault) Config() Config {
return Config{v.db}
}
func (c Config) String(k string) (string, error) {
if c.db == nil {
return "", ErrLocked
}
return getConfig(c.db, k)
}
func (c Config) SetString(k string, v string) error {
if c.db == nil {
return ErrLocked
}
return setConfig(c.db, k, v)
}
func (c Config) Bytes(k string) ([]byte, error) {
if c.db == nil {
return nil, ErrLocked
}
return getConfigBytes(c.db, k)
}
func (c Config) SetBytes(k string, v []byte) error {
if c.db == nil {
return ErrLocked
}
return setConfigBytes(c.db, k, v)
}
func (c Config) Set(k string, v string) error {
if c.db == nil {
return ErrLocked
}
return setConfig(c.db, k, v)
}
func (c Config) KID(k string) (keys.ID, error) {
s, err := c.String(k)
if err != nil {
return "", err
}
if s == "" {
return "", nil
}
kid, err := keys.ParseID(s)
if err != nil {
return "", err
}
return kid, nil
}
func (c Config) SetKID(k string, v keys.ID) error {
if c.db == nil {
return ErrLocked
}
return setConfig(c.db, k, string(v))
}
func setConfig(db *sqlx.DB, key string, value string) error {
if _, err := db.Exec("INSERT OR REPLACE INTO config (key, value) VALUES ($1, $2)", key, value); err != nil {
return errors.Wrapf(err, "failed to set config")
}
return nil
}
func getConfig(db *sqlx.DB, key string) (string, error) {
var value string
if err := db.Get(&value, "SELECT value FROM config WHERE key=$1", key); err != nil {
if errors.Is(err, sql.ErrNoRows) {
return "", nil
}
return "", errors.Wrapf(err, "failed to get config")
}
return value, nil
}
func setConfigBytes(db *sqlx.DB, key string, b []byte) error {
if len(b) == 0 {
return setConfig(db, key, "")
}
return setConfig(db, key, encoding.MustEncode(b, encoding.Base64))
}
func getConfigBytes(db *sqlx.DB, key string) ([]byte, error) {
s, err := getConfig(db, key)
if err != nil {
return nil, err
}
if len(s) == 0 {
return nil, nil
}
b, err := encoding.DecodeBase64(s)
if err != nil {
return nil, err
}
return b, nil
}