package service import ( "crypto/ecdsa" "io" "github.com/nspcc-dev/neofs-api-go/refs" crypto "github.com/nspcc-dev/neofs-crypto" ) type signedBearerToken struct { BearerToken } const fixedBearerTokenDataSize = 0 + refs.OwnerIDSize + 8 // NewSignedBearerToken wraps passed BearerToken in a component suitable for signing. // // Result can be used in AddSignatureWithKey function. func NewSignedBearerToken(token BearerToken) DataWithSignKeyAccumulator { return &signedBearerToken{ BearerToken: token, } } // NewVerifiedBearerToken wraps passed SessionToken in a component suitable for signature verification. // // Result can be used in VerifySignatureWithKey function. func NewVerifiedBearerToken(token BearerToken) DataWithSignature { return &signedBearerToken{ BearerToken: token, } } // AddSignKey calls a Signature field setter and an OwnerKey field setter with corresponding arguments. func (s signedBearerToken) AddSignKey(sig []byte, key *ecdsa.PublicKey) { if s.BearerToken != nil { s.SetSignature(sig) s.SetOwnerKey( crypto.MarshalPublicKey(key), ) } } // SignedData returns token information in a binary representation. func (s signedBearerToken) SignedData() ([]byte, error) { return SignedDataFromReader(s) } // SignedDataSize returns the length of signed token information slice. func (s signedBearerToken) SignedDataSize() int { return bearerTokenInfoSize(s.BearerToken) } // ReadSignedData copies a binary representation of the token information to passed buffer. // // If buffer length is less than required, io.ErrUnexpectedEOF returns. func (s signedBearerToken) ReadSignedData(p []byte) (int, error) { sz := s.SignedDataSize() if len(p) < sz { return 0, io.ErrUnexpectedEOF } copyBearerTokenSignedData(p, s.BearerToken) return sz, nil } func bearerTokenInfoSize(v ACLRulesSource) int { if v == nil { return 0 } return fixedBearerTokenDataSize + len(v.GetACLRules()) } // Fills passed buffer with signing token information bytes. // Does not check buffer length, it is understood that enough space is allocated in it. // // If passed BearerTokenInfo, buffer remains unchanged. func copyBearerTokenSignedData(buf []byte, token BearerTokenInfo) { if token == nil { return } var off int off += copy(buf[off:], token.GetACLRules()) off += copy(buf[off:], token.GetOwnerID().Bytes()) tokenEndianness.PutUint64(buf[off:], token.ExpirationEpoch()) off += 8 } // SetACLRules is an ACLRules field setter. func (m *BearerTokenMsg_Info) SetACLRules(v []byte) { m.ACLRules = v } // SetValidUntil is a ValidUntil field setter. func (m *BearerTokenMsg_Info) SetValidUntil(v uint64) { m.ValidUntil = v } // GetOwnerID if an OwnerID field getter. func (m BearerTokenMsg_Info) GetOwnerID() OwnerID { return m.OwnerID } // SetOwnerID is an OwnerID field setter. func (m *BearerTokenMsg_Info) SetOwnerID(v OwnerID) { m.OwnerID = v } // SetOwnerKey is an OwnerKey field setter. func (m *BearerTokenMsg) SetOwnerKey(v []byte) { m.OwnerKey = v } // SetSignature is a Signature field setter. func (m *BearerTokenMsg) SetSignature(v []byte) { m.Signature = v }