cosmos-sdk/x/ibc/core/02-client/keeper/proposal.go

64 lines
2.1 KiB
Go

package keeper
import (
"github.com/armon/go-metrics"
"github.com/cosmos/cosmos-sdk/telemetry"
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
"github.com/cosmos/cosmos-sdk/x/ibc/core/02-client/types"
"github.com/cosmos/cosmos-sdk/x/ibc/core/exported"
)
// ClientUpdateProposal will try to update the client with the new header if and only if
// the proposal passes. The localhost client is not allowed to be modified with a proposal.
func (k Keeper) ClientUpdateProposal(ctx sdk.Context, p *types.ClientUpdateProposal) error {
if p.ClientId == exported.Localhost {
return sdkerrors.Wrap(types.ErrInvalidUpdateClientProposal, "cannot update localhost client with proposal")
}
clientState, found := k.GetClientState(ctx, p.ClientId)
if !found {
return sdkerrors.Wrapf(types.ErrClientNotFound, "cannot update client with ID %s", p.ClientId)
}
header, err := types.UnpackHeader(p.Header)
if err != nil {
return err
}
clientState, consensusState, err := clientState.CheckProposedHeaderAndUpdateState(ctx, k.cdc, k.ClientStore(ctx, p.ClientId), header)
if err != nil {
return err
}
k.SetClientState(ctx, p.ClientId, clientState)
k.SetClientConsensusState(ctx, p.ClientId, header.GetHeight(), consensusState)
k.Logger(ctx).Info("client updated after governance proposal passed", "client-id", p.ClientId, "height", clientState.GetLatestHeight().String())
defer func() {
telemetry.IncrCounterWithLabels(
[]string{"ibc", "client", "update"},
1,
[]metrics.Label{
telemetry.NewLabel("client-type", clientState.ClientType()),
telemetry.NewLabel("client-id", p.ClientId),
telemetry.NewLabel("update-type", "proposal"),
},
)
}()
// emitting events in the keeper for proposal updates to clients
ctx.EventManager().EmitEvent(
sdk.NewEvent(
types.EventTypeUpdateClientProposal,
sdk.NewAttribute(types.AttributeKeyClientID, p.ClientId),
sdk.NewAttribute(types.AttributeKeyClientType, clientState.ClientType()),
sdk.NewAttribute(types.AttributeKeyConsensusHeight, header.GetHeight().String()),
),
)
return nil
}