97 lines
3.0 KiB
Go
97 lines
3.0 KiB
Go
package client
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import (
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"fmt"
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sdk "github.com/cosmos/cosmos-sdk/types"
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sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
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evidenceexported "github.com/cosmos/cosmos-sdk/x/evidence/exported"
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evidencetypes "github.com/cosmos/cosmos-sdk/x/evidence/types"
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"github.com/cosmos/cosmos-sdk/x/ibc/02-client/exported"
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"github.com/cosmos/cosmos-sdk/x/ibc/02-client/types"
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ibctmtypes "github.com/cosmos/cosmos-sdk/x/ibc/07-tendermint/types"
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localhosttypes "github.com/cosmos/cosmos-sdk/x/ibc/09-localhost/types"
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)
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// HandleMsgCreateClient defines the sdk.Handler for MsgCreateClient
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func HandleMsgCreateClient(ctx sdk.Context, k Keeper, msg exported.MsgCreateClient) (*sdk.Result, error) {
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clientType := exported.ClientTypeFromString(msg.GetClientType())
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var (
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clientState exported.ClientState
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consensusHeight uint64
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)
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switch clientType {
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case exported.Tendermint:
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tmMsg, ok := msg.(ibctmtypes.MsgCreateClient)
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if !ok {
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return nil, sdkerrors.Wrap(ErrInvalidClientType, "Msg is not a Tendermint CreateClient msg")
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}
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var err error
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clientState, err = ibctmtypes.InitializeFromMsg(tmMsg)
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if err != nil {
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return nil, err
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}
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consensusHeight = msg.GetConsensusState().GetHeight()
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case exported.Localhost:
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// msg client id is always "localhost"
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clientState = localhosttypes.NewClientState(ctx.ChainID(), ctx.BlockHeight())
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consensusHeight = uint64(ctx.BlockHeight())
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default:
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return nil, sdkerrors.Wrap(ErrInvalidClientType, msg.GetClientType())
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}
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_, err := k.CreateClient(
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ctx, clientState, msg.GetConsensusState(),
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)
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if err != nil {
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return nil, err
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}
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ctx.EventManager().EmitEvents(sdk.Events{
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sdk.NewEvent(
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EventTypeCreateClient,
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sdk.NewAttribute(AttributeKeyClientID, msg.GetClientID()),
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sdk.NewAttribute(AttributeKeyClientType, msg.GetClientType()),
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sdk.NewAttribute(types.AttributeKeyConsensusHeight, fmt.Sprintf("%d", consensusHeight)),
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),
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sdk.NewEvent(
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sdk.EventTypeMessage,
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sdk.NewAttribute(sdk.AttributeKeyModule, AttributeValueCategory),
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),
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})
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return &sdk.Result{
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Events: ctx.EventManager().Events().ToABCIEvents(),
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}, nil
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}
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// HandleMsgUpdateClient defines the sdk.Handler for MsgUpdateClient
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func HandleMsgUpdateClient(ctx sdk.Context, k Keeper, msg exported.MsgUpdateClient) (*sdk.Result, error) {
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_, err := k.UpdateClient(ctx, msg.GetClientID(), msg.GetHeader())
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if err != nil {
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return nil, err
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}
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return &sdk.Result{
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Events: ctx.EventManager().Events().ToABCIEvents(),
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}, nil
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}
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// HandlerClientMisbehaviour defines the Evidence module handler for submitting a
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// light client misbehaviour.
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func HandlerClientMisbehaviour(k Keeper) evidencetypes.Handler {
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return func(ctx sdk.Context, evidence evidenceexported.Evidence) error {
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misbehaviour, ok := evidence.(exported.Misbehaviour)
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if !ok {
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return sdkerrors.Wrapf(types.ErrInvalidEvidence,
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"expected evidence to implement client Misbehaviour interface, got %T", evidence,
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)
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}
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return k.CheckMisbehaviourAndUpdateState(ctx, misbehaviour)
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}
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}
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