/
evidence.go
103 lines (85 loc) · 2.81 KB
/
evidence.go
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package types
import (
"fmt"
"time"
abci "github.com/tendermint/tendermint/abci/types"
"github.com/tendermint/tendermint/crypto/tmhash"
tmbytes "github.com/tendermint/tendermint/libs/bytes"
"gopkg.in/yaml.v2"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/x/evidence/exported"
)
// Evidence type constants
const (
RouteEquivocation = "equivocation"
TypeEquivocation = "equivocation"
)
var _ exported.Evidence = &Equivocation{}
// Route returns the Evidence Handler route for an Equivocation type.
func (e *Equivocation) Route() string { return RouteEquivocation }
// Type returns the Evidence Handler type for an Equivocation type.
func (e *Equivocation) Type() string { return TypeEquivocation }
func (e *Equivocation) String() string {
bz, _ := yaml.Marshal(e)
return string(bz)
}
// Hash returns the hash of an Equivocation object.
func (e *Equivocation) Hash() tmbytes.HexBytes {
bz, err := e.Marshal()
if err != nil {
panic(err)
}
return tmhash.Sum(bz)
}
// ValidateBasic performs basic stateless validation checks on an Equivocation object.
func (e *Equivocation) ValidateBasic() error {
if e.Time.Unix() <= 0 {
return fmt.Errorf("invalid equivocation time: %s", e.Time)
}
if e.Height < 1 {
return fmt.Errorf("invalid equivocation height: %d", e.Height)
}
if e.Power < 1 {
return fmt.Errorf("invalid equivocation validator power: %d", e.Power)
}
if e.ConsensusAddress == "" {
return fmt.Errorf("invalid equivocation validator consensus address: %s", e.ConsensusAddress)
}
return nil
}
// GetConsensusAddress returns the validator's consensus address at time of the
// Equivocation infraction.
func (e Equivocation) GetConsensusAddress() sdk.ConsAddress {
addr, _ := sdk.ConsAddressFromBech32(e.ConsensusAddress)
return addr
}
// GetHeight returns the height at time of the Equivocation infraction.
func (e Equivocation) GetHeight() int64 {
return e.Height
}
// GetTime returns the time at time of the Equivocation infraction.
func (e Equivocation) GetTime() time.Time {
return e.Time
}
// GetValidatorPower returns the validator's power at time of the Equivocation
// infraction.
func (e Equivocation) GetValidatorPower() int64 {
return e.Power
}
// GetTotalPower is a no-op for the Equivocation type.
func (e Equivocation) GetTotalPower() int64 { return 0 }
// FromABCIEvidence converts a Tendermint concrete Evidence type to
// SDK Evidence using Equivocation as the concrete type.
func FromABCIEvidence(e abci.Evidence) exported.Evidence {
bech32PrefixConsAddr := sdk.GetConfig().GetBech32ConsensusAddrPrefix()
consAddr, err := sdk.Bech32ifyAddressBytes(bech32PrefixConsAddr, e.Validator.Address)
if err != nil {
panic(err)
}
return &Equivocation{
Height: e.Height,
Power: e.Validator.Power,
ConsensusAddress: consAddr,
Time: e.Time,
}
}