Mukan Erkin Törük
6852832fe8
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72 lines
2.3 KiB
Go
72 lines
2.3 KiB
Go
package solomachine
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import (
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errorsmod "cosmossdk.io/errors"
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storetypes "cosmossdk.io/store/types"
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"github.com/cosmos/cosmos-sdk/codec"
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sdk "github.com/cosmos/cosmos-sdk/types"
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commitmenttypesv2 "github.com/cosmos/ibc-go/v10/modules/core/23-commitment/types/v2"
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"github.com/cosmos/ibc-go/v10/modules/core/exported"
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)
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// CheckForMisbehaviour returns true for type Misbehaviour (passed VerifyClientMessage check), otherwise returns false
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func (ClientState) CheckForMisbehaviour(_ sdk.Context, _ codec.BinaryCodec, _ storetypes.KVStore, clientMsg exported.ClientMessage) bool {
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if _, ok := clientMsg.(*Misbehaviour); ok {
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return true
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}
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return false
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}
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func (cs ClientState) verifyMisbehaviour(cdc codec.BinaryCodec, misbehaviour *Misbehaviour) error {
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// NOTE: a check that the misbehaviour message data are not equal is done by
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// misbehaviour.ValidateBasic which is called by the 02-client keeper.
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// verify first signature
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if err := cs.verifySignatureAndData(cdc, misbehaviour, misbehaviour.SignatureOne); err != nil {
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return errorsmod.Wrap(err, "failed to verify signature one")
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}
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// verify second signature
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if err := cs.verifySignatureAndData(cdc, misbehaviour, misbehaviour.SignatureTwo); err != nil {
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return errorsmod.Wrap(err, "failed to verify signature two")
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}
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return nil
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}
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// verifySignatureAndData verifies that the currently registered public key has signed
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// over the provided data and that the data is valid. The data is valid if it can be
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// unmarshaled into the specified data type.
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func (cs ClientState) verifySignatureAndData(cdc codec.BinaryCodec, misbehaviour *Misbehaviour, sigAndData *SignatureAndData) error {
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// do not check misbehaviour timestamp since we want to allow processing of past misbehaviour
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if err := cdc.Unmarshal(sigAndData.Path, new(commitmenttypesv2.MerklePath)); err != nil {
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return err
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}
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signBytes := SignBytes{
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Sequence: misbehaviour.Sequence,
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Timestamp: sigAndData.Timestamp,
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Diversifier: cs.ConsensusState.Diversifier,
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Path: sigAndData.Path,
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Data: sigAndData.Data,
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}
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data, err := cdc.Marshal(&signBytes)
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if err != nil {
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return err
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}
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sigData, err := UnmarshalSignatureData(cdc, sigAndData.Signature)
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if err != nil {
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return err
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}
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publicKey, err := cs.ConsensusState.GetPubKey()
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if err != nil {
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return err
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}
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return VerifySignature(publicKey, data, sigData)
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}
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