68 lines
1.7 KiB
Go
68 lines
1.7 KiB
Go
package refs
|
|
|
|
import (
|
|
"crypto/sha256"
|
|
"strings"
|
|
|
|
"github.com/nspcc-dev/neofs-api-go/internal"
|
|
)
|
|
|
|
const (
|
|
joinSeparator = "/"
|
|
|
|
// ErrWrongAddress is raised when wrong address is passed to Address.Parse ParseAddress.
|
|
ErrWrongAddress = internal.Error("wrong address")
|
|
|
|
// ErrEmptyAddress is raised when empty address is passed to Address.Parse ParseAddress.
|
|
ErrEmptyAddress = internal.Error("empty address")
|
|
)
|
|
|
|
// ParseAddress parses address from string representation into new Address.
|
|
func ParseAddress(str string) (*Address, error) {
|
|
var addr Address
|
|
return &addr, addr.Parse(str)
|
|
}
|
|
|
|
// Parse parses address from string representation into current Address.
|
|
func (m *Address) Parse(addr string) error {
|
|
if m == nil {
|
|
return ErrEmptyAddress
|
|
}
|
|
|
|
items := strings.Split(addr, joinSeparator)
|
|
if len(items) != 2 {
|
|
return ErrWrongAddress
|
|
}
|
|
|
|
if err := m.CID.Parse(items[0]); err != nil {
|
|
return err
|
|
} else if err := m.ObjectID.Parse(items[1]); err != nil {
|
|
return err
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// String returns string representation of Address.
|
|
func (m Address) String() string {
|
|
return strings.Join([]string{m.CID.String(), m.ObjectID.String()}, joinSeparator)
|
|
}
|
|
|
|
// IsFull checks that ContainerID and ObjectID is not empty.
|
|
func (m Address) IsFull() bool {
|
|
return !m.CID.Empty() && !m.ObjectID.Empty()
|
|
}
|
|
|
|
// Equal checks that current Address is equal to passed Address.
|
|
func (m Address) Equal(a2 *Address) bool {
|
|
return m.CID.Equal(a2.CID) && m.ObjectID.Equal(a2.ObjectID)
|
|
}
|
|
|
|
// Hash returns []byte that used as a key for storage bucket.
|
|
func (m Address) Hash() ([]byte, error) {
|
|
if !m.IsFull() {
|
|
return nil, ErrEmptyAddress
|
|
}
|
|
h := sha256.Sum256(append(m.ObjectID.Bytes(), m.CID.Bytes()...))
|
|
return h[:], nil
|
|
}
|