package types import ( "time" "github.com/tendermint/tendermint/libs/bytes" tmtime "github.com/tendermint/tendermint/types/time" ) // Canonical* wraps the structs in types for amino encoding them for use in SignBytes / the Signable interface. // TimeFormat is used for generating the sigs const TimeFormat = time.RFC3339Nano type CanonicalBlockID struct { Hash bytes.HexBytes PartsHeader CanonicalPartSetHeader } type CanonicalPartSetHeader struct { Hash bytes.HexBytes Total int } type CanonicalProposal struct { Type SignedMsgType // type alias for byte Height int64 `binary:"fixed64"` Round int64 `binary:"fixed64"` POLRound int64 `binary:"fixed64"` BlockID CanonicalBlockID Timestamp time.Time ChainID string } type CanonicalVote struct { Type SignedMsgType // type alias for byte Height int64 `binary:"fixed64"` Round int64 `binary:"fixed64"` BlockID CanonicalBlockID Timestamp time.Time ChainID string } //----------------------------------- // Canonicalize the structs func CanonicalizeBlockID(blockID BlockID) CanonicalBlockID { return CanonicalBlockID{ Hash: blockID.Hash, PartsHeader: CanonicalizePartSetHeader(blockID.PartsHeader), } } func CanonicalizePartSetHeader(psh PartSetHeader) CanonicalPartSetHeader { return CanonicalPartSetHeader{ psh.Hash, psh.Total, } } func CanonicalizeProposal(chainID string, proposal *Proposal) CanonicalProposal { return CanonicalProposal{ Type: ProposalType, Height: proposal.Height, Round: int64(proposal.Round), // cast int->int64 to make amino encode it fixed64 (does not work for int) POLRound: int64(proposal.POLRound), BlockID: CanonicalizeBlockID(proposal.BlockID), Timestamp: proposal.Timestamp, ChainID: chainID, } } func CanonicalizeVote(chainID string, vote *Vote) CanonicalVote { return CanonicalVote{ Type: vote.Type, Height: vote.Height, Round: int64(vote.Round), // cast int->int64 to make amino encode it fixed64 (does not work for int) BlockID: CanonicalizeBlockID(vote.BlockID), Timestamp: vote.Timestamp, ChainID: chainID, } } // CanonicalTime can be used to stringify time in a canonical way. func CanonicalTime(t time.Time) string { // Note that sending time over amino resets it to // local time, we need to force UTC here, so the // signatures match return tmtime.Canonical(t).Format(TimeFormat) }