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dex/storage/ent/client/utils.go

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package client
import (
"fmt"
"hash"
"github.com/pkg/errors"
"github.com/dexidp/dex/storage"
"github.com/dexidp/dex/storage/ent/db"
)
func rollback(tx *db.Tx, t string, err error) error {
rerr := tx.Rollback()
err = convertDBError(t, err)
if rerr == nil {
return err
}
return errors.Wrapf(err, "rolling back transaction: %v", rerr)
}
func convertDBError(t string, err error) error {
if db.IsNotFound(err) {
return storage.ErrNotFound
}
if db.IsConstraintError(err) {
return storage.ErrAlreadyExists
}
return fmt.Errorf(t, err)
}
// compose hashed id from user and connection id to use it as primary key
// ent doesn't support multi-key primary yet
// https://github.com/facebook/ent/issues/400
func offlineSessionID(userID string, connID string, hasher func() hash.Hash) string {
h := hasher()
h.Write([]byte(userID))
h.Write([]byte(connID))
return fmt.Sprintf("%x", h.Sum(nil))
}