package reputation import ( "bytes" "errors" "fmt" "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/reputation" "github.com/mr-tron/base58" ) // PeerID represents unique identifier of the peer participating in the FrostFS // reputation system. // // ID is mutually compatible with git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/reputation.PeerID // message. See ReadFromV2 / WriteToV2 methods. // // Instances can be created using built-in var declaration. type PeerID struct { m reputation.PeerID } // ReadFromV2 reads PeerID from the reputation.PeerID message. Returns an // error if the message is malformed according to the FrostFS API V2 protocol. // // See also WriteToV2. func (x *PeerID) ReadFromV2(m reputation.PeerID) error { val := m.GetPublicKey() if len(val) == 0 { return errors.New("missing ID bytes") } x.m = m return nil } // WriteToV2 writes PeerID to the reputation.PeerID message. // The message must not be nil. // // See also ReadFromV2. func (x PeerID) WriteToV2(m *reputation.PeerID) { *m = x.m } // SetPublicKey sets PeerID as a binary-encoded public key which authenticates // the participant of the FrostFS reputation system. // // Argument MUST NOT be mutated, make a copy first. // // See also CompareKey. func (x *PeerID) SetPublicKey(key []byte) { x.m.SetPublicKey(key) } // PublicKey return public key set using SetPublicKey. // // Zero PeerID has zero key which is incorrect according to FrostFS API // protocol. // // Return value MUST NOT be mutated, make a copy first. func (x PeerID) PublicKey() []byte { return x.m.GetPublicKey() } // ComparePeerKey checks if the given PeerID corresponds to the party // authenticated by the given binary public key. func ComparePeerKey(peer PeerID, key []byte) bool { return bytes.Equal(peer.PublicKey(), key) } // EncodeToString encodes ID into FrostFS API protocol string. // // Zero PeerID is base58 encoding of PeerIDSize zeros. // // See also DecodeString. func (x PeerID) EncodeToString() string { return base58.Encode(x.m.GetPublicKey()) } // DecodeString decodes string into PeerID according to FrostFS API protocol. // Returns an error if s is malformed. // // See also DecodeString. func (x *PeerID) DecodeString(s string) error { data, err := base58.Decode(s) if err != nil { return fmt.Errorf("decode base58: %w", err) } x.m.SetPublicKey(data) return nil } // String implements fmt.Stringer. // // String is designed to be human-readable, and its format MAY differ between // SDK versions. String MAY return same result as EncodeToString. String MUST NOT // be used to encode ID into FrostFS protocol string. func (x PeerID) String() string { return x.EncodeToString() }