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package types
import (
"bytes"
"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: int32(header.NumTxs), // XXX: overflow
TotalTxs: header.TotalTxs,
LastBlockHash: header.LastBlockID.Hash,
ValidatorsHash: header.ValidatorsHash,
AppHash: header.AppHash,
// Proposer: TODO
}
}
// XXX: panics on unknown pubkey type
func (tm2pb) Validator(val *Validator) abci.Validator {
return abci.Validator{
Address: val.PubKey.Address(),
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) Validators(vals *ValidatorSet) []abci.Validator {
validators := make([]abci.Validator, vals.Size())
for i, val := range vals.Validators {
validators[i] = TM2PB.Validator(val)
}
return validators
}
func (tm2pb) ConsensusParams(params *ConsensusParams) *abci.ConsensusParams {
return &abci.ConsensusParams{
BlockSize: &abci.BlockSize{
MaxBytes: int32(params.BlockSize.MaxBytes),
MaxTxs: int32(params.BlockSize.MaxTxs),
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) ValidatorFromPubKeyAndPower(pubkey crypto.PubKey, power int64) abci.Validator {
pubkeyABCI := TM2PB.PubKey(pubkey)
return abci.Validator{
Address: pubkey.Address(),
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) Validators(vals []abci.Validator) ([]*Validator, error) {
tmVals := make([]*Validator, len(vals))
for i, v := range vals {
pub, err := PB2TM.PubKey(v.PubKey)
if err != nil {
return nil, err
}
// If the app provided an address too, it must match.
// This is just a sanity check.
if len(v.Address) > 0 {
if !bytes.Equal(pub.Address(), v.Address) {
return nil, fmt.Errorf("Validator.Address (%X) does not match PubKey.Address (%X)",
v.Address, pub.Address())
}
}
tmVals[i] = &Validator{
Address: pub.Address(),
PubKey: pub,
VotingPower: v.Power,
}
}
return tmVals, nil
}
func (pb2tm) ConsensusParams(csp *abci.ConsensusParams) ConsensusParams {
return ConsensusParams{
BlockSize: BlockSize{
MaxBytes: int(csp.BlockSize.MaxBytes), // XXX
MaxTxs: int(csp.BlockSize.MaxTxs), // 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
// },
}
}