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package types
import (
"fmt"
"reflect"
"time"
abci "github.com/tendermint/tendermint/abci/types"
"github.com/tendermint/tendermint/crypto"
"github.com/tendermint/tendermint/crypto/ed25519"
"github.com/tendermint/tendermint/crypto/secp256k1"
)
//-------------------------------------------------------
// Use strings to distinguish types in ABCI messages
const (
ABCIEvidenceTypeDuplicateVote = "duplicate/vote"
ABCIEvidenceTypeMockGood = "mock/good"
)
const (
ABCIPubKeyTypeEd25519 = "ed25519"
ABCIPubKeyTypeSecp256k1 = "secp256k1"
)
//-------------------------------------------------------
// TM2PB is used for converting Tendermint ABCI to protobuf ABCI.
// UNSTABLE
var TM2PB = tm2pb{}
type tm2pb struct{}
func (tm2pb) Header(header *Header) abci.Header {
return abci.Header{
ChainID: header.ChainID,
Height: header.Height,
Time: header.Time,
NumTxs: header.NumTxs,
TotalTxs: header.TotalTxs,
LastBlockId: TM2PB.BlockID(header.LastBlockID),
LastCommitHash: header.LastCommitHash,
DataHash: header.DataHash,
ValidatorsHash: header.ValidatorsHash,
ConsensusHash: header.ConsensusHash,
AppHash: header.AppHash,
LastResultsHash: header.LastResultsHash,
EvidenceHash: header.EvidenceHash,
ProposerAddress: header.ProposerAddress,
}
}
func (tm2pb) Validator(val *Validator) abci.Validator {
return abci.Validator{
Address: val.PubKey.Address(),
Power: val.VotingPower,
}
}
func (tm2pb) BlockID(blockID BlockID) abci.BlockID {
return abci.BlockID{
Hash: blockID.Hash,
PartsHeader: TM2PB.PartSetHeader(blockID.PartsHeader),
}
}
func (tm2pb) PartSetHeader(header PartSetHeader) abci.PartSetHeader {
return abci.PartSetHeader{
Total: int32(header.Total),
Hash: header.Hash,
}
}
// XXX: panics on unknown pubkey type
func (tm2pb) ValidatorUpdate(val *Validator) abci.ValidatorUpdate {
return abci.ValidatorUpdate{
PubKey: TM2PB.PubKey(val.PubKey),
Power: val.VotingPower,
}
}
// XXX: panics on nil or unknown pubkey type
// TODO: add cases when new pubkey types are added to crypto
func (tm2pb) PubKey(pubKey crypto.PubKey) abci.PubKey {
switch pk := pubKey.(type) {
case ed25519.PubKeyEd25519:
return abci.PubKey{
Type: ABCIPubKeyTypeEd25519,
Data: pk[:],
}
case secp256k1.PubKeySecp256k1:
return abci.PubKey{
Type: ABCIPubKeyTypeSecp256k1,
Data: pk[:],
}
default:
panic(fmt.Sprintf("unknown pubkey type: %v %v", pubKey, reflect.TypeOf(pubKey)))
}
}
// XXX: panics on nil or unknown pubkey type
func (tm2pb) ValidatorUpdates(vals *ValidatorSet) []abci.ValidatorUpdate {
validators := make([]abci.ValidatorUpdate, vals.Size())
for i, val := range vals.Validators {
validators[i] = TM2PB.ValidatorUpdate(val)
}
return validators
}
func (tm2pb) ConsensusParams(params *ConsensusParams) *abci.ConsensusParams {
return &abci.ConsensusParams{
BlockSize: &abci.BlockSize{
MaxBytes: int32(params.BlockSize.MaxBytes),
MaxGas: params.BlockSize.MaxGas,
},
TxSize: &abci.TxSize{
MaxBytes: int32(params.TxSize.MaxBytes),
MaxGas: params.TxSize.MaxGas,
},
BlockGossip: &abci.BlockGossip{
BlockPartSizeBytes: int32(params.BlockGossip.BlockPartSizeBytes),
},
}
}
// ABCI Evidence includes information from the past that's not included in the evidence itself
// so Evidence types stays compact.
// XXX: panics on nil or unknown pubkey type
func (tm2pb) Evidence(ev Evidence, valSet *ValidatorSet, evTime time.Time) abci.Evidence {
_, val := valSet.GetByAddress(ev.Address())
if val == nil {
// should already have checked this
panic(val)
}
// set type
var evType string
switch ev.(type) {
case *DuplicateVoteEvidence:
evType = ABCIEvidenceTypeDuplicateVote
case MockGoodEvidence:
// XXX: not great to have test types in production paths ...
evType = ABCIEvidenceTypeMockGood
default:
panic(fmt.Sprintf("Unknown evidence type: %v %v", ev, reflect.TypeOf(ev)))
}
return abci.Evidence{
Type: evType,
Validator: TM2PB.Validator(val),
Height: ev.Height(),
Time: evTime,
TotalVotingPower: valSet.TotalVotingPower(),
}
}
// XXX: panics on nil or unknown pubkey type
func (tm2pb) NewValidatorUpdate(pubkey crypto.PubKey, power int64) abci.ValidatorUpdate {
pubkeyABCI := TM2PB.PubKey(pubkey)
return abci.ValidatorUpdate{
PubKey: pubkeyABCI,
Power: power,
}
}
//----------------------------------------------------------------------------
// PB2TM is used for converting protobuf ABCI to Tendermint ABCI.
// UNSTABLE
var PB2TM = pb2tm{}
type pb2tm struct{}
func (pb2tm) PubKey(pubKey abci.PubKey) (crypto.PubKey, error) {
// TODO: define these in crypto and use them
sizeEd := 32
sizeSecp := 33
switch pubKey.Type {
case ABCIPubKeyTypeEd25519:
if len(pubKey.Data) != sizeEd {
return nil, fmt.Errorf("Invalid size for PubKeyEd25519. Got %d, expected %d", len(pubKey.Data), sizeEd)
}
var pk ed25519.PubKeyEd25519
copy(pk[:], pubKey.Data)
return pk, nil
case ABCIPubKeyTypeSecp256k1:
if len(pubKey.Data) != sizeSecp {
return nil, fmt.Errorf("Invalid size for PubKeyEd25519. Got %d, expected %d", len(pubKey.Data), sizeSecp)
}
var pk secp256k1.PubKeySecp256k1
copy(pk[:], pubKey.Data)
return pk, nil
default:
return nil, fmt.Errorf("Unknown pubkey type %v", pubKey.Type)
}
}
func (pb2tm) ValidatorUpdates(vals []abci.ValidatorUpdate) ([]*Validator, error) {
tmVals := make([]*Validator, len(vals))
for i, v := range vals {
pub, err := PB2TM.PubKey(v.PubKey)
if err != nil {
return nil, err
}
tmVals[i] = NewValidator(pub, v.Power)
}
return tmVals, nil
}
func (pb2tm) ConsensusParams(csp *abci.ConsensusParams) ConsensusParams {
return ConsensusParams{
BlockSize: BlockSize{
MaxBytes: int(csp.BlockSize.MaxBytes), // XXX
MaxGas: csp.BlockSize.MaxGas,
},
TxSize: TxSize{
MaxBytes: int(csp.TxSize.MaxBytes), // XXX
MaxGas: csp.TxSize.MaxGas,
},
BlockGossip: BlockGossip{
BlockPartSizeBytes: int(csp.BlockGossip.BlockPartSizeBytes), // XXX
},
// TODO: EvidenceParams: EvidenceParams{
// MaxAge: int(csp.Evidence.MaxAge), // XXX
// },
}
}