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package types
import (
"time"
tmtime "github.com/tendermint/tendermint/libs/time"
tmproto "github.com/tendermint/tendermint/proto/tendermint/types"
)
// 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
//-----------------------------------
// Canonicalize the structs
func CanonicalizeBlockID(bid tmproto.BlockID) *tmproto.CanonicalBlockID {
rbid, err := BlockIDFromProto(&bid)
if err != nil {
panic(err)
}
var cbid *tmproto.CanonicalBlockID
if rbid == nil || rbid.IsNil() {
cbid = nil
} else {
cbid = &tmproto.CanonicalBlockID{
Hash: bid.Hash,
PartSetHeader: CanonicalizePartSetHeader(bid.PartSetHeader),
}
}
return cbid
}
// CanonicalizeVote transforms the given PartSetHeader to a CanonicalPartSetHeader.
func CanonicalizePartSetHeader(psh tmproto.PartSetHeader) tmproto.CanonicalPartSetHeader {
return tmproto.CanonicalPartSetHeader(psh)
}
// CanonicalizeVote transforms the given Proposal to a CanonicalProposal.
func CanonicalizeProposal(chainID string, proposal *tmproto.Proposal) tmproto.CanonicalProposal {
return tmproto.CanonicalProposal{
Type: tmproto.ProposalType,
Height: proposal.Height, // encoded as sfixed64
Round: int64(proposal.Round), // encoded as sfixed64
POLRound: int64(proposal.PolRound),
BlockID: CanonicalizeBlockID(proposal.BlockID),
Timestamp: proposal.Timestamp,
ChainID: chainID,
}
}
// CanonicalizeVote transforms the given Vote to a CanonicalVote, which does
// not contain ValidatorIndex and ValidatorAddress fields, or any fields
// relating to vote extensions.
func CanonicalizeVote(chainID string, vote *tmproto.Vote) tmproto.CanonicalVote {
return tmproto.CanonicalVote{
Type: vote.Type,
Height: vote.Height, // encoded as sfixed64
Round: int64(vote.Round), // encoded as sfixed64
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)
}